'ORBEM SMITHSONIAN INSTITUTIONUNITED STATES NATIONAL MUSEUMBulletin 92 BIBLIOGRAPHIC INDEX OF AMERICANORDOVICIAN AND SILURIANFOSSILSVOLUME 1 BYRAY S. BASSLERCurator of Paleontology, United States National Museum AMrwir^^ I9jb WASHINGTONGOVERNMENT PRINTING OFFICE1915 SMITHSONIAN INSTITUTIONUNITED STATES NATIONAL MUSEUMBulietin 92 BIBLIOGRAPHIC INDEX OF AMERICANORDOVICIAN AND SILURIANFOSSILSVOLUME 1 BYRAY S. BASSLERCurator of Paleontology, United States National Museutn WASHINGTONGOVERNMENT PRINTING OFFICE1915 BULLETIN OF THE L^NITED STATES NATIONAL MUSEmi.Issued November 1, 1915n ADVERTISEMENT.The scientific publications of the United States National Museumconsist of two series?the Proceedings and the Bulletins.The scientific publications of the United States National Museumare intended primarily as a medium for the publication of original,and usually brief, papers based on the collections of the NationalMuseum, presenting newly acquired facts in zoology, geology, andanthropology, including descriptions of new forms of animals, andrevisions of limited groups. One or two volumes are issued annu-ally and distributed to libraries and scientific organizations. Alimited number of copies of each paper, in pamphlet form, is distrib-uted to specialists and others interested in the different subjects assoon as printed. The date of publication is printed on each paper,and these dates are also recorded in the tables of contents of thevolumes.The Bulletins, the first of which was issued in 1875, consist of aseries of separate publications comprising chiefly monographs oflarge zoological groups and other general systematic treatises (occa-sionally in several volumes), faunal work, reports of expeditions,and catalogues of type-specimens, special collections, etc. Themajority of the volumes are octavos, but a quarto size has beenadopted in a few instances in which large plates were regarded asindispensable.Since 1902 a series of octavo volumes containing papers relat-ing to the botanical collections of the Museum, and known as theContributions from the National Herbarium, has been published asbulletins.The present work forms No. 92 of the Bulletin series.Richard Rathbun,Assistant Secretary, Smithsonian Institution,In charge of the United States National Museum.Washington, D. C, July 21, 1915. Ill TABLE OF CONTENTS. Preface viiBibliographic list of genera and species 1 PREFACE. The literature of systematic natural history has become so voluminous that it isalmost impossible for the student to attain good results without the aid of some kindof a compilation. In Paleozoic paleontology the need of such an index is perhapsgreatest for the fossils of the Ordovician, Silurian, and Devonian periods for thereason that the Carboniferous has been covered up to 1898 by Weller's BibliographicIndex of North American Invertebrates (Bulletin 153, United States GeologicalSm-vey), and the numerous monographs of the Secretary of the Smithsonian Institu-tion upon Cambrian geology and paleontology have assembled the fossils of thatperiod. Dr. E. M. Kindle, while a member of the United States Geological Survey,prepared an index of Devonian fossils which will probably be published in thefuture. In the course of work upon the paleontologic collections of the UnitedStates National Museum the present author has specialized upon the Ordovician andSihuian, and it therefore became appropriate for him to prepare the bibliographicindex which is herewith placed at the service of his fellow workers.The great amount of labor required to complete an index of this size and characterin a few years is very evident, and the work could not have been brought to aspeedy conclusion had the author not had the help of two indefatigable and intelhgentassistants. Miss Florence George and Miss Adelaide C. Quisenberry, to both of whomhe is under great obligations. The refinement of stratigraphic designation consequenton the great advance in knowledge of Ordovician and Silurian stratigraphy in thelast decade has necessitated a careful examination of all described fossils in order tolocate them accurately in the time scale. In this work and also in the task ofclearing up the synonyms the author is indebted to many friends for generous help,particularly to Dr. Rudolph Ruedemann, Mr. Frank Springer, Dr. P. E. Raymond,and Prof. W. 11. Twenhofel. To Dr. E. O. Ulrich, whose knowledge of AmericanPaleozoic paleontology and stratigraphy, whether in manuscript form or otherwise,has ever been at the command of the writer, he is under special indebtedness. Thewriter has also had access to a set of references to American Paleozoic fossils coveringpart of the literature up to 1906, prepared under the direction of Prof. CharlesSchuchert by Miss M. W. Moodey and Mr. J. M. Nickles. This set was of greatestuse for its foreign generic references, but in order to insure as few errors as possiblethese references were again checked up with the literature covered by them.The terms Ordovician and Silurian in the title of this work are employed in abroad sense, so as to include formations which, although considered of Cambrian orDevonian age by some, are still placed in the Ordovician or Silurian by others. Theparticular cases in the Siluiian are those of the upi^er ^lonroan and the Keyser forma-tions, both of which the author would place in the Devonian. With the Ordovicianthe author has catalogued the Ozarkian and Canadian faunas, both of which divisionsare regarded by Ulrich, Schuchert, Walcott, aud others, the writer included, as ofsystemic value. In fact, then, the present index is intended to cover all Americanfossils which are known to occur in formations regarded as probably younger tlianthose which are definitely decided to be of Cambrian age, and older than those nowgenerally considered to belong to the Devonian period. VII VIII PREFACE.Every effort has been made to eliminate errors, but it is inevitable that many willbe found. As the author intends to keep this index up to date for use in the UnitedStates National Museum, all corrections will be greatly appreciated. A chapterdevoted to the literature of American Ordovician and Silurian paleontology wasprepared for this work, but was omitted when it was found that this subject will beincluded in a forthcoming bibliographic publication by the United States GeologicalSurvey.The citations have been brought up to the close of 1914 with the exception thattwo important monographs (Schuchert, Revision of Paleozoic Stelleroidea, Bulletin88, United States National Museiun, and Springer, Monograph Crinoidea Flexibilia,Smithsonian Institution), then in press or ready for publication, were included.Following the bibliographic list proper which makes up the greater part of thework (pages 1 to 1342), the author has added an index of specific names (pages 1343to 1406), showing under what generic or other combination any particular name hasbeen employed. Then, in order that the biological classification of any doubtfulgenus may be readily ascertained, a biological classification (pages 1407 to 1428) and analphabetical list of genera (pages 1429 to 1440) are given. Finally, as an aid in recallingthe position of the many geological formations cited, an alphabetical list of AmericanOrdovician and Silurian formations, indicating their approximate place in the timescale (pages 1511 to 1521), and correlation tables covering the most important areas offc-siliferous rocks, are given. With the help of these several features, in addition tothe bibliographic references, it is believed that all the needs of the student with oneexception are covered. This exception is the failure to indicate the characteristicspecies of each formation in the faunal lists. As knowledge of the early Paleozoicfaunas increases it is becoming more evident that a species is characteristic of aformation only in a certain area of deposition and when considered in connectionwith the associated organisms. As the origin of the fauna, the lithology of its inclos-ing sediments, and still other factors must also be considered in determining suchspecies, it has not seemed advisable to attempt to indicate them at present.The bibliographic citations are abbreviated as far as possible without sacrificingclearness, and the horizon and locality of each species are condensed into as few wordsas needed. The type locality is cited first, and in cases where a species occurs inseveral formations the name of the particular formation follows in parenthesis eachlocality listed. It will be noted that this index is also a register of the types of Or-dovician and Silurian fossils contained in the United States National Museum. Thetype terms holotype, paratype, and cotypes, for primary types, and plesiotypes, forall supplemental types, employed throughout this work are those adopted in thedivision of paleontology in the United States National Museum. All valid speciesare printed in heavy-faced type. The cross references are condensed as much aspossible, and in cases where the generic cross reference will suffice for the speciesunder it, those for the latter are not given. BIBLIOGRAPHIC INDEX OF AMERICAN ORDO-VICIAN AND SILURIAN FOSSILS. .By Ray S. BasslerCurator of Paleontology, United States National Museum.BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. ACACOCRINUS Wachsmuth and Springer.Genotype: A. elrodi Wachsmuth and Springer.Acacocrinus (subgenus of Habrocrinus) Wachsmuth and Springer, Mem. Mus.Comp. Zool., Harvard, 21, 1897, p. 515.?Miller, N. A. Geol. Pal., 2d App.,1897, p. 730.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 194.Acacocrinus americanus Wachsmuth and Springer.Acacocrinus americanus Wachsmuth and Springer, Mem. Mus. Comp. Zool., Har-vard, 21, 1897, p. 516, pi. 34, fig. 15a, b.Xiagaran (Laurel): St. Paul, Indiana.Acacocrinus elrodi Wachsmuth and Springer.Acacocrinus elrodi Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard,21, 1897, p. 515, pi. 34, fig. 16.Niagaran (Waldron): Hartsville, Indiana.AcANTHALOMA Conrad. See Ceratocephala Warder.ACANTHOCLEMA Hall. Genotype: Trematopora altemata Hall.Acanthoclema Hall, 5th Ann. Rep. State Geol. New York for 1885, 1886, expl.pi. 25.?Hall and Simpson, Pal. New York, 6, 1887, p. 15.?Miller, N. A.Geol. Pal., 1889, p. 291.?UMch, Geol. Surv. Illinois, 8, 1890, pp. 402, 661.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 552.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173. 1900, p. 44.?Bassler, Bull.U. S. Geol. Surv., 292, 1906, p. 58; Zittel-Eastman Textb. Pal., 1913, p. 344.Acanthoclema asperum (Hall).Trematopora aspera Hall, Pal. New York, 2, 1852, p. 154, pi. 40 A, figs. lOa-c.Batostomella? aspera Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 189.Acanthoclema asperum Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 58, pi. 21,figs. 3-5; pi. 24, figs. 7-9; pi. 25, figs. 17-20.Clinton: Lockport, Rochester, etc.. New York; Grimsby, Hamilton, etc., On-tario (Rochester); Osgood, Indiana (Osgood).Plesiotypes.?C&t. No. 35756, U.S.N.M.84243??Bull. 92?15 1 1 2 BULLETIN '.)2, UNITED STATES NATIONAL MUSEUM.ACANTHODICTTA Hinde. Genotype: A. hispida Hinde.Acanthodictya Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 47.?Miller,N. A. Geol. Pal., 1st App., 1892, p. 666.?Dawson, Trans. Roy. Soc. Canada,2d ser., 2, sec. 4, 1896, p. 110.Acanthodictya hispida Hinde.Acanthodictya hispida Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 48,figs. 18, 19, pi. 3, fig. 8.?Rautf, Palseontographia, 40, 1894, p. 255.?Dawson,Trans. Roy. Soc. Canada, 2d ser., 2, sec. 4, 1896, p. 110, figs. 20, 21, pi. 3,fig. 11.Cajiadian? (Levis?): Metis, Quebec.ACANTHOGRAPTUS Spencer. Genotype: A. granti Spencer.Acanthograptus Spencer, Canadian Nat., n. s. 8, 1878, p. 461.?Lapworth Quart.Jour. Geol. Soc. London, 37, 1881, p. 174.?Spencer, Trans. Acad. Sci. St.Louis, 4, 1884, pp. 562, 581; Bull. Mus. Univ. State Missouri, 1, 1884, p. 31.?Miller, N. A. Geol. Pal., 1889, p. 170.?Ruedemann, Mem. New York StateMus., 9, 1908, p. 191.AcANTHOfiRAPTUS BARTONENSis Grant. See Acanthograptus walkeri.Acanthograptus chsetophorus Gurley.Acanthograptus chtetophorus (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65,1911, p. 61, fig. 84, pi. 3, fig. 5.Niagaran dolomite: Hamilton, Ontario.Acanthograptus granti Spencer.Acanthograptus granti Spencer, Canadian Nat., n. s., 8, 1878, p. 461; 10, 1882, p.165; Bull. Mus. Univ. State Missouri, 1, 1884, p. 31, pi. 4, fig. 5; Trans. Acad.Sci. St. Louis, 4, 1884, p. 581, pi. 4, fig. 5.?Gurley, Jour. Geol., 4, 1896, pp.92, 308.?Ruedemann, Mem. New York State Mus., 11 pt. 2, 1908, pi. 6,fig. 3; pi. 7, fig. 3.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 56, 57, figs.72-74.Niagaran dolomite: Hamilton, Ontario.Acanthograptus multlspinus Gurley.Acanthograptus multispinus (Gurley MS.), Bassler, Bull. U. S. Nat. Mus., 65,1911,p. 61, figs. 85, 86.Niagaran dolomite: Hamilton, Ontario.Acanthograptus pulcher Spencer.Acanthograptus pulcher Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.);Bull. Mus. Univ. State Missouri, 1, 1884, p. 32, pi. 4, fig. 6; Trans. Acad.Sci. St. Louis, 4, 1884, pp. 564, 582, pi. 4, fig. 6.?Miller, N. A. Geol. Pal.,1889, p. 170, fig. 128.?Gurley, Jour. Geol. 4, 1896, pp. 92, 308.?Bassler,Bull. U. S. Nat. Mus., 65, 1909, pp. 59, 60, figs. 81-83, pi. 4, fig. 5.Niagaran dolomite: Hamilton, Ontario.Acanthograptus walkeri (Spencer).Inocaulis walkeri Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.); Bull.Mus. Univ. State Missouri, 1, 1884, p. 35, pi. 5, fig. 2; Trans. Acad. Sci. St.Louis, 4, 1884, p. 585, pi. 5, fig. 2.?Gurley, Jour. Geol., 4, 1896, pp. 99, 309.Acanthograptus walkeri Ruedemann, Mem. New York State Mus., 11, 1908, p. 194,figs. 97, 98, pi. 6, figs. 1. 2; pi. 7, fig. 4.?Bassler, Bull. U. S. Nat. Mus., 65, 1909,pp. 57-59, fig8. 75-80.Acanthogrnptus bartonensis Grant, Jour, and Proc. Hamilton Assoc, 16, 1900,p. 101 (fig. only). BIBLIOGRAPHIC LIST OF GENERA AiSD SPECIES 3Acanthograptus walked?Continued.Niagaran dolomite : Hamilton, Ontario.Clinton (Rochester): Middleport, New York.Plesiotype.?Cut. No. 54277, U.S.N.M.ACANTHOLENUS Matthew. Genotype: Leptoplastus spiniger Matthew.Acanthnlr^mis IMatthew, Trans. Royal Soc. Canada, 2d eer., 4, sec. 4, 1898, p. 142.Acantholenus spiuiger (Matthew).Leptoplastus spiniger Matthew, Canadian Rec. Sci., 3, 188!), p. 487, fig. 4.Anomocare spiniger Matthew, Trans. Royal Soc. Canada, (), sec. 4, 1892, p. 61,pi. 13, figs. 4a-e.Acantholenus spiniger ^Matthew, Trans. Royal Soc. (_'anada, 2d ser., 4, sec. 4, 1898,p. 142, pi. 2, figs. 4a-4e; Bull. Nat. Hist. Soc. New Brunswick, 16, 1898, p. 42.Canadian (Bretonian, Div. C 3b): Long Island, Kennebecasis River, New Bruns-wick.ACANTHONEMA Grabau. Genotype: A. holopiforme Grabau.Acanthonema Grabau, Michigan Geol. Surv., Gcol. Scr. 1, 1909, p. 181.?Grabauand Shiraer, N. A. Index Fossils, 1, 1909, p. (j91.Acauthonema holopiforme Gralmu.Acanthonema hoiopiforniis Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909,p. 182, pi. 10, fig. 4, pi. 26, figs. 1-3; pi. 23, figs. 6, 8.?Grabau and Shimer,N. A. Index Fossils, 1, 1909, p. 691.Upper Monroan: Wayne County, Mich., and Otsego, Wood County, Ohio (Lucas);Detroit River (Amherstburg).Acanthonema holopiforme obsoletum Grabau.Acanthonema holopiformis var. obsoleta Grabau, Michigan Geol. Surv., Geol.Ser. 1, 1909, p. 183, pi. 26, tig. 1, right half.Upper Monroan (Lucas): Gibraltar quarry, Wayne County, Michigan.Acanthonema laxiim Grabau.Acanthonema laxa Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 183, pi.26, fig. 4; pi. 27, figs. 3, 4.?Grabau and Shimer, N. A. Index Fossils, 1,1909, p. 691.Upper Monroan: Grosse Island and Wayne County, Mich. (Lucas); DetroitRiver (Amherstburg).Acanthonema newberryi (Meek).Orthonema newberryi Meek, Proc. Acad. Nat. Sci. Philadelphia, 1871, p. 81;Geol. Surv. Ohio, Pal. 1, 1873, p. 217, pi. 20, figs. 3a-b.?Miller, N. A. Geol.Pal., 1889, p. 414, fig. 690.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 566, fig.Acanthonema newberryi Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p.184, pi. 27, fig. 5.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 691,fig. 985.Upper Monroan (Lucas): Otsego, Wood County, Ohio.AcASTE Goldfuss. See Phacopidella Reed.ACERVULARIA Schweigger.Genotype: A. baltica Schweigger=A. ananas (Linnaeus).Acervularia Schweigger, Handb. der Naturg., 1820, p. 418.?Eichwald, Zool.Specialis, pt. 1, Vilnae, 1829, p. 187.?Dana, Wilkes' U. S. Expl. Exped.,1838-42, 7, Zoophytes, 1846, p. 358; Amer. Jour. Sci. and Arte, 2d ser., 1,1846, p. 184.?Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851 4 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.ACERVULARIA?Continued.(Ai-ch. Mus. Hist. Nat., 5, 1851), pp. 171, 414.~Pictet, Traite de Pal., 2d ed.,4, 1857, p. 457.?Hall, Geol. Surv. Iowa, 1, pt. 2, 1858, p. 476.?Milne-Ed-wards, Hist. Nat. d. Corall., 3, 1860, p. 407.?Dybowski, Archiv. f. Natiir.Liv.-Ehst. und Kiirl., 5, 1873, p. 338.?Zittel, Handbuch Pal., 1, 1879, p. 233.?Roemer, Leth. geog., pt. 1, lyCth Pal., 1883, p. 350.?Koch, Paleeontographica,29, 1883, pp. 330, 342.?Miller, N. A. Geol. Pal., 1889, p. 170.?Sherzer,Amer. Geol., 7, 1891, pp. 284-289.?Koken, Die I.eitfossilien, Leipzig, 1896,p. 311, fig. 234.?Lindstrom, Kongl. Sven. Vet.-Akad. Haudl., 32, No. 1,1899, p. 17.?Zittel-Eastman Textb. Pal., 1, 1900, p. 79.?Lambe, Gont. Can.PaJ., Geol. Siu-v. Canada, 4, pt. 2, 1901, p. 163.Acerviilaria aiistinl (Salter).Strephodes? Austini Salter, Sutherland's Jour. Voyage in BafEns Bay, etc., 2,1852, p. ccxxx, pi. 6, figs. 6, 6a.?Etheridge, Quart. Jour. Geol. Soc.London, 1878, p. 587.?Woodward, Geol. Mag., dec. 2, 5, 1878, p. 386, pi. 10,figs. 1, 2.Clisiophyllum austini? Houghton, Joui-. Geo. Soc. Dublin, 1, 1857, p. 246, pi. 10,figs. 2, 2a.Acervularia austini Lambe, The Cruise of the " Neptune," App. 4, 1906, ji. 322;Cruise of the "Arctic" in 1908-9, 1910, p. 479.Niagaran: Cornwallis, Beechey and Griffith's Islands, and (ape Hilgard, ArcticAmerica.Acervularia cllntonensls Nicholson.Accrvulai-ia clintonensis Nicholson, Geol. Surv. Ohio, Pal. 2, 1875, p. 227, \A.23, figs. 2, 2a.?Miller, N. A. Geol. Pal., 1889, p. 170, fig. 129.Upper Medinan (Brassfield?): Yellow Springs, Ohio.Acervularia communis Simpson. See Prismatophyllum inequalis.Acervularia gracilis (Billings).Strombodes gracilis Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 306,fig. 309; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 113 (Adv. sheets, 1862).?Chamberlin, Geol. Wisconsin, 1, 1883, p. 190, fig.?Lesley, Geol. Sur\-.Pennsylvania, Rep. P. 4, 1890, p. 1109, fig.Acervularia gracilis Lambe, Ottawa Nat., 12, 1899, p. 221; Cont. Can. Pal., Geol.Surv. Canada, 4, pt. 2, 1901, p. 163, pi. 14, figs. 2, 2a.Upper Medinan (Cataract): Manitouaning, Grand Manitoulin Island, Lake Huron.Acervularia inequalis Schuchert. See Prismatophyllum inequale.ACHRADOCRINUS Schultze. Genotype: A. ventrosus Schultze.Achradocrinus Schultze, Denk. d. Kais. Akad. der Wise., Math.-Naturw. CI. 24,Abth. 2, p. 213, fig. 19.?Zittel, Handb. Pal., 1, 1879, p. 364.?WachsmuthandSpringer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 115, 151. (Rev. Pal.,pt. 3, sec. 2, pp. 191, 272.)?Bather, Ann. Mag. Nat. Hist., 6 ser., 5, 1890, p.324, pi. 14, fig. 22; Treatise on Zool., pt. 3, Echinoderma, 1900, p. 178, fig. 95.?Slocom, Field Columbian Mus., 2, 1908, p. 287.?Zittel, Handb. Pal., 1, 1910,p. 152.Achradocrinus patulus Slocom.Achradocrinus patulus Slocom, Field Columbian Mus., 2, 1908, p. 288, pi. 85,figs. 1-4.Niagaran (Racine): Romeo, Illinois. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 5ACIDASPIS Murchison. Genotype; A. brightii Murchison.Acidaspis Murchison, Sil. Syst., 1839, p. 658?Hall, Pal., 1 New York, 3847,p. 240.?Barrande, Neue.s Jahrb. f. Min., etc., 1850, p. 777; Syst. Sil. duCentre Boheme, 1, 1852, p. 692.?Salter, Mem. Geol. Rurv. United Kingd.,dec. 7, 1853, pi. 6.?McCoy, British Pal. Rocks and Fossils, 1854, p. 152.?Pictet, Traite de Pal., 2d ed., 2, 1854, p. 517.?Emmons, Amer. Geology, 1,pt. 2, 1855, p. 217.?Gebhai-d, Ninth Rep. New York State Cab. Nat. Hist.,1856, p. 46.?Chapman, Canadian Jour., n. s., 1, 1856, p. 282.?Salter, Cat.Camb. Sil. Foss., 1873, p. 134.?Steinhardt, Beit. z. Naturk. Preus. Phys.-Oekon. Gesell., Konigsberg, 1874, p. 62.?Miller, Cincinnati Quart. Jour.Sci., 1, 1874, pp. 128, 129.?Angelin, Pal. Scandinavica, 3d ed., Holmiae,1878, p. 33.?Walcott, Science, 3, 1884, p. 281.?Zittel, Handb. d. Pal., 2,1885, p. 622.?Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 7, ser., 33,1885, p. 1.?Hall and Clarke, Pal. New York, 7, 1888, p. xxxv, fig.; p. xxxvi.?\Miidborne, Mon. Devonian Fauna South England, 1, Pal. Soc, 1889, p. 11. ? Clarke, 10th Rep. State Geol. New York for 1890, 1891, pp. 63, 67; 44th Rep.New York State Mus., 1892, pp. 93, 97.?Vogdes, Cal. Acad. Sci., Occ. Pap.,4, 1893, p. 259.?Beecher, Amer. Geol, 16, 1895, p. 178.?Koken, Die Leit-fossilien, Liepzig, 1896, p. 31, fig. 20.?Oehlert, Bull. Soc. geol. France, 3dser., 24, 1896, p. 112, text fig. 33.?Beecher, Amer. Jour. Sci., 4th ser., 3,1897, p. 104, pi. 3, fig. 23.?Lindstr6m, Kongl. Sven. Vet.-Akad. Handl., 34,No. 8, 1901, pp. 26, 85.?Miller, N. A. Geol. Pal., 1889, p. 526.?Cumings,Thirty-second Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1051.?Gra-bau and Shimer, N. A. Index Fossils, 2, 1910, p. 311.?Raymond, Zittel-Eastman Textb. Pal., 1913, p. 722.Observation.?Most of the above references are to Acidaspis in a broad sense,including Ceratocephala and Odontopeura.Acidaspis anchoralis Miller. See Ceratocephala anchoralis.Aclda.spls brevispino.sa Foerste.Acidaspis brevispincsa Foerste, Geol. Surv., Ohio, 7, 1895, p. 522, pi. 37A, fig. 13.Upper Medinan (Brassfield): Huffman Quarry, Dayton, Ohio.Acidaspis ceralepta Meek. See Ceratocephala ceralepta.Acidaspis cincinnatiensis Meek. See Ceratocephala cincinnatiensis.Acidaspis crosotus Cumings. See Odontopleura crosota.Acidaspis danai Hall. See Ceratocephala goniata.Acidaspis fimbriata Hall. See Ceratocephala fimbriata.Acidaspis halli Shumard. See Odontopleura halli.Acidaspis horani Billings. See Ceratocephala horani.Acidaspis ida Winchell and Marcy. See Ceratocephala f;;oniata.Acidaspis ob.soleta Van Ingen.Acidaspis obsoleta Van Ingen, School of Mines Quart., 23, 1901, p. 51, figs. 13,14,pl., figs. 9, 10.Niagaran (St. Clair): St. Clair Spring, Independence County, Arkansas.Acidaspis O'Nealu Miller. See Odontopleura o'nealli.Acidaspis ortoni Foerste. See Odontoi)leura ortoni,Acidaspis pakvula. See Odontopleura i)arvula. 6 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Acidaspis perarmata ^Miiteaves.Acidaspis perarmata Whiteaves, Canadian Rec. Sci., 4, 1891, p. 300, pi. 3, fig. 6;Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 289, pi. 42, fig. 3.Niagaran: Long Point, Lake Winnipegosis, Saskatchewan, Canada.Acidaspis quinquespinosa Lake.Acidaspis quinquespinosa Lake, Quart. Jour. Geol. Soc. London, 52, 1896, p. 240,pi. 7, figs. 3, 4.?Van Ingen, School of Mines Quart., 23, 1901, p. 50, fig. 12,pi., figs. 7, 8.?Grabau and Shimor, N. A. Index Fossils, 2, 1910, p. 311, fig.1621h.Silurian: Dudley, England (Wenlock); St. Clair Spring, Independence County,Arkansas (Niagaran-St. Clair).Acidaspis rhyncocrphalus Meek. See Ceratocephala cincinnatiensia.Acidaspis spiniger Hall. See Bathyurus spiniger.Acidaspis trentonensis Hall. See Odontopleura trentonensis.Acidaspis vanhornel Weller.Acida.spis vanhornei Weller, Bull. Chicago Acad. Sci., 4, pt. 2, 1907, p. 251, pi. 23,figs. 3, 4.Niagaran (Racine) : Bridgeport, Illinois.AcLEiSTOCERAS Hyatt. See Poterioceras McCoy.Acroculia Phillips. See Platyceras Conrad.ACROTHELE Linnarsson. Genotype: A. coriacea Linnarsson.Acrothele Linnarsson, Bihang till K. svensk. Vet.-Akad. Handl., 3, No. 12, 1876,pp. 20-21.?Zittel, Handbuch d. Pal., 1, Abth. 1, 1880, p. 665.?Davidson,British Foss. Brach., 5, pt. 2, 1883, pp. 213-214.?Walcott, Bull. U. S. Geol.Surv., 30, 1886, pp. 107-108.?(Ehlert, Man. Conch., 1887, p. 1269.?Hall andClarke, 11th Ann. Rep. State Geol. New York, 1892, pp. 249, 250; 45th Ann.Rep. New York State Mus., 1892, pp. 565, 566; Pal. New York, 8, pt. 1, 1892,pp. 98-101.?Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 308.?Mat-thew, Geol. Surv. Canada, Rep. Cam. Rocks Cape Breton, 1903, pp. 103-105. ? Grabau and Shinier, N. A. Index Foss., 1, 1907, p. 200.?Walcott, Smiths.Misc. Coll., 53, 1908, pp. 142 and 146; Mon. U. S. Geol. Surv., 51, 1912, p. 630.Acrothele levisensls Walcott.Acrothele levisensis Walcott, Smithsonian Misc. Coll., 53, No. 3, 1908, p. 85, pi. 8,fig. 13; Mon. U. S. Geol. Surv., 51, 1912, p. 646, pi. 81, figs. 12, 12a, b.Canadian (Levis, Didymograptus zone): Point Levis, Quebec.Acrothele pretiosa (Billings).Obolella pretiosa Billings, Pal. Foss., 1, 1862, p. 68, fig. 61; Geol. Canada, 1863,p. 230, fig. 239.?Chapman, Canadian Jour., n. s., 8, 1864, p. 191, fig. 160c.;Expos. Min. Geol. Canada, 1864, p. 163, fig. 160b.?Walcott, Bull. U. S. Geol.Surv., 30, 1886, p. 111.Billingsia pretiosa Ford, Amer. Jour. Sci., 3d ser., 31, 1886, p. 467 (gen. ref.).Elkania pretiosa Ford, Amer. Jour. Sci., 3d ser., 32, 1886, p. 325 (gen. ref.).Linnarssonia pretiosa Schuchert (part) Bull. U. S. Geol. Surv., 87, 1897, p. 262.Walcott, Proc. U. S. Nat. Mus., 23, 1901. p. 673.?Grabau and Shinier, IndexFossils, 1, 1907, p. 200.Acrothele pretiosa Walcott, Proc. U. S. Nat. Mus., 21, 1898, p. 402; Mon. U. S.Geol. Surv., 51, 1912, p. 652, pi. 58, figs. 1, la-g. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 7Acrothele pretiosa?Coutinued.Canadian: C'haudicre River at Grand Trunk Rail Road Bridge, Cape Rouge aljoveQuebe'-, Canada (Sillery); near Grenville, Washington County, New York;Point Levis, Quebec (Levis, Didymograptus zone).Plesiotype.?Csit. No. 52004 U.S.N.M.Acrothele rotunda (Nicholson).Dawsonia rotunda Nicholson, Ann. Mag. Nat. HLst., 4t}i ser., 11, 187S, p. 141,fig. 3a, b.Canadian (Levis, Diplograptus dentatus zone): Point Levis, Quebec.ACROTRETA Kutorga. Genotype: A. subconica Kutorga.Acrotreta Kutorga, Verhandl. Russ.-kais Min. Gesell. St. Petersburg for 1847,No. 12, 1848, pp. 259, 260.?Morris, Ann. Mag. Nat. Hist., 2d ser., 4, 1849,pp. 316, 318.?Davidson, Brit. Fossil Brach., 1, Introduction, No. 3, 1853,p. 133.?Von Seebach, Zeits. d. d., geol. Gesell., 17, Hft. 2, 1865, p. 341.?Davidson, British Foss Brach., 3, pt. 7, No. 4, 1871, p. 343.?Dall, Bull.U. S. Nat. Mus., 8, 1877, p. 12.?Zittel, Handb. Pal., 1, Abth. 1, 1880, p. 666.?Walcott, Mon. U. S. Geol. Surv., 8, 1884, pp. 16-17.?(Ehlert, Man. Conch.,1887, p. 1266.?Hall and Clarke, 11th Ann. Rep. State Geol. New York,1892, p. 250.?45th Ann. Rep. New York State Mus., 1892, p. 566; Pal.New York, 8, pt. 1, 1892, pp. 101-104.?Schuchert, Zittel-Eastman, Textb.Pal., 1, 1900, p. 308.?Matthew, Bull. Nat. Hist. Soc. New Brunswick, 4,pt. 5, 1902, p. 399; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton,1903, p. 94-97.?Grabau and Shimer, N. A. Index Foss., 1, 1907, p. 199.?Walcott, Smithsonian Misc. Coll., 53, 1908, pp. 142, 140; Mon. U. S. Geol.Surv., 51, 1912, p. 671.Linnarssonia Walcott, Amer. Jour. Sci., 3d ser., 29, 1885, p. 115.?Matthew, Trans.Royal Soc. Canada, 1st ser., 3, sec. 4, 1886, p. 35.?Dawson, Trans. RoyalSoc. Canada, 1st ser., 7, sec. 4, 1890, pp. 53-54.?Hall and Clarke, 11th Ann.Rep. State Geol. New York, 1892, p. 251; 45th Ann. Rep. New York StateMus., 1892, p. 567; Pal. New York, 8, pt. 1, 1892, pp. 107-109.?Matthew,Trans. Royal Soc. Canada, 1st ser., 9, sec. 4, 1892, p. 42.Acrotreta attenuata Meek (part). See Acrotreta idahoensis.Acrotreta baileyi Matthew. See Acrotreta bisecta.Acrotreta belti (Davidson?) (Matthew).?Obolella belti Davidson, Geol. Mag., 5, 1868, p. 310, pi. 15, figs. 25-27.Linnarssonia belti? Matthew, Trans. Royal Soc. Canada, 1st ser, 9, .?ec. 4, 1892,pp. 42, 43, pi. 12, figs. 7a-c; Geol. Surv. Canada, Rep. Cambrian rocks CapeBreton, 1903, p. 209, pi. 16, fig. 3a-c.Lower Tremadoc shales: North Wales.Canadian (Bretonian?Div. C. 3 c): St. John, New Brunswick.Acrotreta bisecta Matthew.Acrotreta baileyi Matthew, Trans. Royal Soc. Canada, 1st ser., 9, sec. 4, 1892,p. 43, pi. 12, fig. 7d.Acrotreta bisecta Matthew, Bull. Nat. Hi.st. Soc. New Brunswick, 4, pt. 4, 1901,pp. 275-276, pi. 5, figs. 5a-g; ibid., pt. 5, 1902, p. 394, pi. 16, figs. 2a-g.?Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 582.?Matthew, Geol. Surv.Canada, Rep. Cambrian Rocks Cape Breton, 1903, pp. 186-187, pi. 11, figs.5a-g.?Walcott, Proc. U. S. Nat. Mus., 28, 1905, pp. 298-299; Mon. U. S. Geol.Surv., 51, 1912, p. 678, pi. 66, figs. 7, 7a-e. 8 BULLETIN 92, UNITFD STATES XATTONAL MUSEUM.Acrotreta bisecta?(ontinued.Acrotreta sipo Mattliew, Bull. Nat. Hist. Soc. New Brunswick, 4, pt. 5, 1902, pp.406-407, pi. IS, figs. 1, 2; Geol. Surv. Canada, Rep. Cambrian Rocku CapeBreton, 1903, pp. 185-186, pi. 18, figs. 1, 2.Canadian (Bretonian?Div. C. 3 c): McLeod Brook, Cape Breton, Nova Scotia,and Navy Island, St. John Harbor, New Brunswick.Acrotreta?? cancellata Walcott. . Acrotreta?? cancellata Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 299; Mon. U. S.Geol. Surv., 51, 1912, p. 679, pi. 79, figs. 5, 5a.Canadian (Lower Pogonip): Roundtop Mountain, Eureka County, Nevada.Acrotreta convexa Walcott.Acrotreta convexa Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 584; Mon. U. S.Geol. Surv., 51^ p. 682, pi. 66, figs. 6, 6a-c.Canadian (Bretonian?Div. C. 3 c): Salmon River, thirteen miles south of MarionBridge, etc.. Cape Breton, Nova Scotia.Acrotreta curvata Walcott.Acrotreta gemma Walcott (not Billings) (part), Mon. U. S. Geol. Surv., 8, 1884,pp. 17, 18, pi. 1, figs. Id, le (not figs, la-c, f); 10th Ann. Rep. U. S. Geol.Surv., 1891, p. 608, pi. 67, fig. 5b (not figs. 5a-e).?Hall and Clai'ke (part).Pal. New York, 8, pt. 1, 1892, p. 102, fig. 55 (not figs. 56, 57).?Walcott (part),Mon. U. S. Geol. Surv., 32, pt. 2, 1899, p. 499, pi. 62, fig. 2e (not figs. 2, 2a-d).Acrotreta curvata Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 584; Mon. U. S.Geol. Surv., 51, 1912, p. 682, pi. 68, figs. la-n.Canadian (Lower Pogonip): Hamburg Ridge, Eureka District, Eureka County,Nevada. Also in L'pper Cambrian of Oklahoma.Holoiype and paratypes.?Cat. No. 35269, U.S.N.M.Acrotreta gemma Billings.Acrotreta gemma Billings, Geol. Surv. Canada, Pal. Fossils, ], 1865, pp. 216, 217,figs. 201a-f.?Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 685, pi. 66, figs.la-b.Canadian (Quebec?P.): Four miles uortlieast of Porlland Creek, Ne^vfoundland.AcROTUETA OEMMA Walcott. See Acrotreta curvata and A. idahoenais alta.Acrotreta idahocnsis Walcott.Acrotreta attenuata Meek (part), 0th Ann. Rep. V. S. Geol. and Geog. Surv.Terr, for 1872, 1873, p. 463, footnote.Acrotreta idahocnsis Walcott, Proc. U. S. Nat. Mus., 25, 1902, p. 587; Mon. V. S.Geol. Surv., 51, 1912, p. 687, pi. 65, figs, la-i; pi. 68, figs. 2a-g.Canadian (Lower Pogonip): East of Hamburg Ridge, etc.. Eureka County,Nevada. Also Upper and Middle Cambrian of Utah, Montana, etc.Holotype and paratypes.?Cat. Nos. 52089, 52091, U.S.N.I\r.Acrotreta idahoeusLs alta Walcott.Acrotreta gemma Walcott (not Billings) (part), Mon. U. S. Geol. Surv., 8, 1884,pp. 17, 18, pi. 1, figs, la, lb (not figs. Ic-f); pi. 9, figs. 9, 9a; 10th Ann. Rept.U. S. Geol. Surv., 1891, p. 608, pi. 67, figs. 5, 5a (not figs. 5b-e).?Hall andClarke (part) Pal., New York, 8, pt. 1, 1892, p. 102, figs. 56, 57 (not fig. 55).- -Walcott, (part), Mon. U. S. Geol. Surv., 32, pt. 2, 1899, p. 499, pi. 62, figs.2a, 2c (not figs. 2, 2b, 2d, 2e).Acrotreta idahocnsis alta Walcott, Proc. V. S. Nat. Mus., 25, 1902, p. 588; Mon.U. S. Geol. Surv., 51, 1912, p. 689, pi. 65, figs. 4-4b. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 9Acrotreta Idahoensis alta?Continued.Canadian (Base of Pogonip): Adams Hill, Eureka County, Nevada. Also Middleand UpiJer Cambrian of Montana, Utah, and Nevada.Eolotype and paratype.?Cat. Nos. 35273, 52099 U.S.N.M.Acrotreta minuta Walcott. See Linnarssonella minuta.Acrotreta ovalis Walcott.Acrotreta ovalis Walcott, Proc. U. S. Nat. Mus., 2o, 1902, p. 592; Mon. U. S. Geol.Siirv., 51, 1912, p. 699, pi. 66, figs. 2, 2a-b.Ozarkian? (Levis-erratic): Point Levis, Quebec.Acrotreta sipo Matthew. See Acrotreta bisecta.ACTINOCERAS Bronn. Genotype: A. bigsbyi Bronn.Actinoceraa Bronn, Leth. geog., 1837, p. 97.?Stokes, Proc. Geol. Soc. London, 2,1838, p. 689; Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 707.?McCoy,Syn. Char. Carb. Foss. Ireland, 1844, p. 11.?D'Orbigny, Prodr. de Pal.,1, 1849, p. 3.?Woodward, Man. Mollusca, pt. 1, 1851, p. 88, fig. 47.?Sae-mann, Palaeontographica, 3, 1852, pp. 137, 145, 156.?Pictet, Traite dePal., 2d ed., 2, 1854, p. 638.?Emmons, Amer. Geology, 1, pt. 2, 1855,p. 148.?Barrande, Bull. Soc. Geol. France, 2d ser., 12, pt. 1, 1855,p. 458; Neues Jahrb. f. Min., etc., 1855, p. 395.?Woodward, Geol. Mag., 5,1868, p. 133.?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1879, p. 760.?Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 272.?Zittel, Handb. Pal., 2,1884, p. 368.?Foord, Geol. Mag., dec. 3, 5, 1888, p. 487; Cat. Foss. Ceph.Brit. Mus., 1, 1888, p. 164.?Miller, N. A. Geol. Pal., 1889, p. 431.?Wliid-bome, Mon. Dev. Fauna South England, 1, Pal. Soc, 1890, p. 119.?Bather,Nat. Sci., 5, 1894, pp. 431, 434, fig. 0.?Clarke, Geol. Minnesota, 3, pt. 2, 1897,p. 781.?Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 528.?Foord, Mon.Carb. Ceph. Ireland, pt. 5, Pal., Soc, App., 1903, p. 211.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 114.?Hyatt, Zittel-Eastman Textb.Pal., 2d ed., 1913, p. 609.Ormoceras. Stokes, Proc Geol. Soc London, 2, 1838, p. 689; Trans. Geol. SocLondon, 2d ser., 5, 1840, p. 709.?Woodward, Man. Mollusca, pt. 1, 1851, p88, fig. 48.?Saemann, Palaeontographica, 3, 1852, pp. 146, 156.?BillingsGeol. Surv. Canada, Rep. Progr. for 1853-56, 1857, pp. 326, 328.?BarrandeNeues Jahrb. f. Min., etc, 1855, p. 400.?Emmons, Amer. Geology, 1, pt. 21855, p. 150.?Barrande, Bull. Soc. Geol. France, 2d ser., 12, pt. 1, 1855, p470.?Chapman, Canadian Jour., n. s., 8, 1863, p. 20; Expos. Min. GeolCanada, 1864, p. 128.?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874p. 765.?Hyatt, Proc Boston Soc Nat. Hist., 22, 1884, p. 271.?Zittel, HandbPal., 2, 1884, p. 368.?Miller, N. A. Geol. & Pal., 1889, p. 445.?(GenotypeO.bayfieldi Stokes).Paractinoceras (subgenus of Actinoceras) Hyatt, Zittel-Eastman Textb. Pal.,1900, p. 528 (Genotype: Sactoceras canadense AMiiteaves).Deiroceras (subgenus of Actinoceras) Hyatt, Proc. Boston Soc Nat. Hist., 22,1884, p. 273 (Genotype: Orthoceras python Billings).Conotubularia Troost, Mem. Soc. Geol. France, 3, 1838, p. 87; 5th Geol. Rep. Ten-nessee, 1840, p. 5.?Saemann, Palaeontographica, 3, 1852, p. 146.?Barrande,Syst. Sil. Boheme, 2, pt. 3, 1874, p. 767. (Genotype: C. cuvierii Troost.)Actinoceras abnorme (Hall).Orthoceras abnorme Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 355,pi. 18 (9), fig. 10; rev. ed. 1868 (1870), p. 415, pi. 18, fig. 10; pi. 25, fig. 18.?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 756, pi. 456.?Day,Trans. Wisconsin Acad. Sci., Arts Letters, 4, 1879, p. 120. 10 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Actinoceras abuorme?Continued . Orthoceras (Actinoceras) abnorme Zittel, Handb. Pal., 2, 1884, p. 367, fig. 506.Actinoceras abnorme Ruedemann, BulL New York State Mus., 80, 1905, p. 332,fig. 22.Niagaran (Racine and Guelph): Racine, etc., Wisconsin.Actinoceras Allumettense Whiteaves. See Loxoceras allumettense.Actinoceras anticostiense (Billings).Orthoceras Anticostiense, Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56,1857, p. 316; Cat. Sil. Foss. Anticosti, Geol. Siirv. Canada, 1866, p. 22 (loc.ref.).?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 731, pi. 434.Richmond and Gamachian: Charleton Point, etc., Anticosti.Actinoceras back! (Stokes).Orthocerae Bigsby, Trans. Geol. Soc. London, 1, pt. 2, 1824, p. 204, pi. 30,fig. 1.Orthoceras Backii Stokes, Proc. Geol. Soc. London, 2, 1838, p. 689.Orthoceras nummularium Etheridge (not Sowerby), Quart. Jour. Geol. Soc. Lon-don, 34, 1878, p. 608.Actinoceras Backi Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 182.Niagaran: Drummond Island, Lake Huron; Cape Louis Napoleon, Smith Sound,and Bessels Bay, Kennedy Channel, Arctic America.Observation.?See Actinoceras rotulatum (Billings) for a possible synonym.Actinoceras bayfieldi (Stokes).C)rmoceras Bayfieldii Stokes, Proc. Geol. Soc. London, 2, 1838, p. 689 (nom. nud.);Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 709, pi. 40, fig. 1.?Woodward,Man. Mollusca, pt. 1, 1851, p. 88, footnote, fig. 48.?Barrande, Bull. Soc.Geol. France, 2d ser., 12, 1855, p. 470, pi. A, fig. 5; Neues Jahrb. f. Min., etc.,1855, p. 408, pi. 6, fig. 5.?Miller, N. A. Geol. Pal., 1889, p. 445, fig. 749.Orthoceras Bayfieldi Barrande, Syst. Sil. du Cenlre Boheme, 2, pt. 3, 1874, p. 738,pi. 231.Orthoceras (Ormoceras) Bayfieldi, Zittel, Ilandl). Pal., 2, 1884, p. 368, fig. 507.Niagaran: Drummond Island, Lake Huron.Actinoceras beaumonti Castelnau.Actinoceras Beaumonti Castelnau, E.>^.sai Syst. Sil. I'Amerique Septent., 1843,p. 32, pl. 0, fig. 1.Niagaran: Drummond Island, Lake Huron.Actinoceras beloitense (WTiitfield). ^ Orthoceras (Actinoceras) Beloitense Wliitfield, Ann. Rep. Geol. Surv. Wisconsin,for 1877, 1878, p. 77; Creol. Wisconsin, 4, 1882, p. 226, pl. 8, fig. 1; pl. 10, figs.9, 10.Orthoceras Beloitense Cliamborlin, Geol. Wisconsin, 1883, p. 159, figs.Actinoceras beloitense Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 782, pl. 47,fig. 18.?Holtedahl. Vidensk, Skrilter, 1, No. 9, 1912, p. 8, pl. 4, fig. 2.Orthocerae Bigsby, Trans. Geol. Soc. London, 1, pt. 2, 1824, p. 198, pl. 25,fig. 3 (not], 2).Actinoceras Bigsbja, Stokes (part) Trans. Geol. Soc. London, 2d ser., 5, pt. 3, 1840,p. 707.Orthoceras (Ormoceras) Backii? Meek and Worthen, Geol. Surv. Illinois, 3, 1868,p. 298, pl. 1, fig. 4.?Barrande, Syst. Sil. Centre Boheme, 2, text 4, 1877, p.264, pl. 474, fig. 11.Black River (Platteville): Beloit and Janesville, Wisconsin; Thessalon Island,Lake Huron; Arctic America. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 11Actinoceras beudanti Castelnau.ActinocerasBeudantiCastelnaii, Essai Syst. Sil. I'Amerique Septent., 1843, p. 34,pi. G, fig. 2.Niagaran: Drummond Island, Lake Huron.Actinoceras bigsbyi Bronn.Orthocerae Bigsby, Trans. Geol. Soc. London, 1, 1824, p. 198, pi. 25, figs. 1, 2(not 3).Actinocras Bigsbyi Bronn, Leth. Geog., 1, 1837, p. 98, pi. 1, fig. 8.^?Stokes, Trans.Geol. Soo. London, 2d ser., 5, 1840, p. 707.?Seamann, Pala?ontographica, 3,1852, p. 142.?Foord, Cat. Cepli. British Mus., 1, 1888, p. 1C8.?Whiteaves,Trans. Royal Soo. Canada, 9, sec. 4, 1892, p. 84, pi. 10, fig. 2; Pal. Foss., Geol.Surv. Canada, 3, pt. 3, 1897, p. 208.?Clarke, Geol. Minnesota, 3, pt. 2, 1897,p. 781, pi. 47, figs. 15-17.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 115, fig. 1350.Orthoceras bigsbyi Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 149, fig.109a, b, and App., p. 949. ? Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 543, figs.Orthoceras (Actinoceras) Bigsbyi Barrande, Neues Jahrb. f. Min., etc., 1855, p.400, Syst. Sil. du Centre Boheme, 1, pt. 3, 1874, p. 734, pi. 231, figs. 4, 5;pi. 437, figs. 10-16.?Roemer, Leth, geog., 1, Leth. Pal., 1876, pi. 16, fig. 7.Actinoceras Lyonii Stokes, Trans. Geol. Soc. London, 2d ser., 5, pt. 3, 1840, p. 707,pi. 59, fig. 1.?Castelnau, Sy.st. Sil. de I'Amerique Septent., 1843, p. 32,pi. 17, figs. la-b.Ormoceras Lyonii Hector, Quart. Jour. Geol. Soc. London, 17, 1861, p. 439.Conoceras angulosum Saemann, Palseontographica, 3, 1852, p. 144.Black River: Thessalon Island, Lake Huron; New York; Ontario; Manitoba;Kentucky; Tennessee; Minnesota; Arctic America, etc.AcTixocERA.s BIG.SBYI Stokes (part). See Actinoceras beloitense.Actinoceras blalnvillei Castelnau.ActiTioceras Blainvillei Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p.31, pi. 5, fig. 1; pi. 8, fig. 1.Niagaran: Little Manitoulin Island, Lake Huron.Actinoceras (Paractinoceras) canadense (\^Tiiteaves).Sactoceras Canadense Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 85,pi. 10, figs. la-c.Orthoceras Canadense Miller, N. A. Geol. Pal., 1st App., 1892, p. 697.Actinoceras (Sactoceras?) Canadense Whiteaves, Pal. Foss., Geol. Surv. Canada, 3,pt. 3, 1897, p. 210.Paracliuoceras (!anaden.se Hyatt, Zittel-Eastman Textbook Pal., 1900, p. 528.?Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 344.Black River or Richmond: Lake Winnipeg, Manitoba.AcTiNOCERAM CAPiTOLiNUM Foord. See Actinoceras cuvieri.Actinoceras clouei (Barrande).Orthoceras clouei Barrande, Syst. Sil. du Centre Boheme, ser. 2, 1S70, pi. 432,figs. 1-6; pi. 433, figs. 1, 2; pi. 434, figs. 1-5.Ordovician: Newfoundland.Actinoceras cordleri Castelnau.Actinoceras Cordieri Castelnau, Essai Syst. Sil. IWmerique Septent., 1883, p. 31,pi. 5, fig. 2.Niagaran: Great Manitoulin Island, Lake Huron. 12 BULLETIN 92, UNITED STATES NATIONAL MLTSEUM.Actlnoceras crebriseptum (Hall).Ormoceras crebriseptum Hall, Pal. Nevv York, 1, 1847, p. 313, pi. 86, fig. 2a; pi.87, figs. 2a-e.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 151.?Rogers, Geol.Pennsylvania, 2, pt. 2, 1858, p. 821, fig. 621.?Lesley, Geol. Surv. Pennsyl-vania, Rep. P 4, 1889, p. 504, fig.Actinoceras crebriseptum D'Orbigny, Prodr. Pal., 1, 1849, p. 3 (gen. ref.). ? Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 173.Orthoceraa crebriseptum Billings, Geol. Canada, Geol. Surv. Canada, 1863, p.218, fig. 228.?Chapman, Canadian Jour. n. s., 8, 1863, p. 206, fig. 208; Expos.Min. Geol. Canada, 1864, p. 178, fig. 208.?Lesley, Geol. Surv. Pennsyl-vania, Rep. P 4, 1889, p. 546, figs.Orthoceras (Ormoceras) crebriseptum Barrande, Syst. Sil. du Centre Boheme, 2,pt. 3, 1874, p. 739, pi. 434, figs. 6-8.Cincinnatian (Pulaski): Turin, Pidaald, etc.. New York.Actinoceras(?) cuvierl (Troost).Conotubularia Cu\derii Troost, Mem. Soc. Geol. France, 3, 1838, p. 88, pi. 9,fig. 1; 5th Geol. Rep. Tennessee, 1840, p. 48; 6th Geol. Rep. Tennessee,1841, p. 176.Actinoceras Cuvieri D'Orbigny, Prodr. Pal., 1, 1849, p. 3 (gen. ref.).Orthoceras cuvieri Miller, N. A. Geol. Pal., 1889, p. 447 (gen. ref.).Orthoceras Capitolinum Safford, Geol. Tennessee, 1869, p. 290, pi. 4 (G. 3), figs.la, b.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 544, figs.Actinoceras capitolinum Foord. Cat. Foss. Ceph. British Mus., 1, 1888, p. 174. ?Jovellania capitolinum Foord. Cat. Foss. Ceph. British Mus., 1, 1888, p. 327 (gen.ref.).Trenton (Bigby): Nashville, Tennessee.Actinoceras daytoueiise (Foerste).Orthoceras (Actinoceras) Daytonensis Foerste, Proc. Boston Soc. Nat. Hist., 24,1889, p. 286, pi. 8, fig. 6; Geol. Surv. Ohio, 7, 1893, p. 539, pi. 33, fig. 6.Upper Medinan (Braasfield): Soldiers' Home, near Dayton, Ohio.Actinoceras deshayesi Castelnau.Actinoceras Deshayesii Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p.32, pl. 8, fig. 4.Silurian: Green Bay, Lake Michigan.Actinoceras distans (Hall).Endoceraa distans Hall, Pal. New York, 1, 1847, p. 220, pl. 58, figs, la, b.ActLuoceras distans Whitfield and llovey, Bull. Amer. Mus. Nat. Hist., 11, pt.1, 1898, p. 58 (gen. ref.).Trenton: Turin, Lewis County, Now York.Actinoceras dufresnoyi Castelnau.Actinoceras Dufresnop Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843,p. 32, pl. 8, fig. 3."Niagaran: Drummond Island, Lake Huron.Actinoceras fulgur (Billings).Orthoceras propinquum Billings (not Eichwald), Geol. Surv. Canada, Reji.Progr. for 1853-56, 1857, p. 320.Orthoceras fulgur Billings, Cat. Sil. Foss. Anticu.sti, Geol. Surv. Canada, 1860,p. 22.Richmond (Charleton): Charleton Point, Auticosti. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 13Actlnoceras gracile (Hall).Ormoceras? gracile Hall, Pal. New York, 1, 1847, p. 58, \}\. 17, fig. 3.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 151.^Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 504, fig.Actinoceras gracile D'Orbigny, Prodr. Pal., 1, 1849, p. 3 (gen. ref.).Hormoceras? gracile Clarke and Riiedemaun, Bull. New York State Mus., 65,1903, p. 601 (gen. ref.).Black River (Watertown): Watertown, New York.Actinoceras hearsti Parks.Actinoceras hearsti Parks, in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 37.Niagaran (Guelph): Severn River, Ontario.Actinoceras infelix (Billings).Orthoceras infelix Billings, ('at. Sil. Foss. Auticosti, Geol. Surv. Canada, 1866,p. 57.Actinoceras (Orthoceras) infelix Hyatt, Proc Boston Soc. Nat. Hist., 22, 1883,p. 272.Anticostian (Becsie River-Jupiter River): Southwest Poiul, Auticosti.Actinoceras lieewatinense Wliiteaves.Actinoceras Keewatinense \\liiteaves, Ann. Rep. Geol. Surv. ('anada (n. s.),14, App. F, 1904, p. 54; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, pp.246, 263, pi. 30, figs. 7, 8.Niagaran: Rainy Island, Attawapiskat River and Ekwan River, Canada.Actinoceras latonumniulatum (Foerste).Orthoceras (Actinoceras) lata-nummulatua Foerste, Proc. Boston Soc. Nat. Hist.,24, 1889, p. 285, pi. 8, fig. 4; Geol. Surv. Ohio, Pal. 7, 1893, p. 538, pi. 33,fig. 4.Upper Medinan (Brassfield): Soldiers' Home, near Dayton, Ohio.Actinoceras Lyoni Stokes. See Actinoceras bigsbyi.Actinoceras lyoni Whiteaves. See Actinoceras richardsoui.Actinoceras (Deiroceras) python (Billings).Orthoceras python Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,p. 335.Deiroceras python Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 273 (gen. ref.).Actinoceras (Deiroceras) python Whiteaves, Pal. Foss., Geol. Surv. Canada, 3,pt. 3, 1897, p. 210.Trenton: Ottawa, Montreal and Lake Winnipeg, Canada.Actinoceras remotiseptum (Hall).Onnoceras remotiseptum Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed.,1850, p. 181, pi. 4, fig. 3. (Doc. ed., p. 173).Actinoceras remotiseptum Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 782, pi. 54,figs. 1-3.?Foord, Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 172.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 115.Hormoceras remotiseptum Clarke and Ruedemann, New York State Mus., Bull.65, p. 602 (gen. ref.).Black River: Watertown, New York (Watertown); Cannon Falls, Minnesota(Platteville).Actinoceras richardsoni Stokes.Actinoceras Richardsonii Stokes, Proc. Geol. Soc. London, 2, p. 689 (nom. nud.);Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 708, pi. 59, figs. 2, 3.?Castelnau,Essai Syst. Sil. I'Amerique Septent., 1843, p. 30, pi. 7, figs. 1, 2; pi. 8, figs. 14 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Actinoceras richardsoni?Continued.2a, b.?Woodward, Man. Mollusca, pt. 2, 1851, p. 88, footnote, fig. 47. ? Barrande, Neues Jahrb. f. Min., etc., 1855, p. 396, pi. 6, figs. 6, 7; Bull.Soc. Geol. France, 2d eer., 12, 1855, p. 461, pi. B, figs. 6, 7.?Foord, Cat. Fobs.Ceph. Brit. Mus., pt. 1, 1888, p. 172.?Miller, N. A. Geol. Pal., 1889, p. 431,text fig. 725.?Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4, p. 83, pi. 9,figs. 1, 2, 2a, 3; 4a; Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 207.Orthoceras richardsoni Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p.737, pi. 234.TOrmoceras Brongniarti Owen, Geol. Rep. Wisconfein, Iowa, Minnesota, 1852, p.181.Aitinoceras Lyoni Whiteaves (not Stokes), Geol. Surv. Canada, Rep. Progr.1878-79, 1880, pp. 460, and 48c of Appendix 1.Black River or Richmond : Lake Winnipeg, Canada.Actinoceras richardsoni magnum Parks.Actinoceras richardsoni var. magnum Parks in Tyrrell, 22nd Rep. Ontario Bur.Mines, 1913, p. 33.Mohawkian or Richmond: Shamattawa River, Manitoba.Actinoceras rotulatum (Billings).Orthoceras rotulatum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856,1857, p. 334.?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 732,pi. 437, figs. 1-5.Niagaran: Head of Lake Temiscaming, Canada.Observation.?Considered synonymous with A. barki (Stokes) by Foord (Cat.Foss. Ceph. British Mus., 1, 1888, p. 182).Actinoceras sedgwiclii (Billings).Orthoceras Sedgwicki Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,p. 320; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, pp. 22, 58 (loc. ref.).Richmond and Gamachian: West End, Gamachi Bay, etc., Anticosti.Actinoceras sphaeroidale (Stokes).Huronia sphseroidalis Stokes, Trans. Geol. Soc. London, 2d ser., 1, pt. 2, 1824,p. 203, pi. 28, fig. 5.Orthoceras (Huronia) spheeroidale Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3,1874, p. 742, pi. 232, fig. 3.Actinoceras s[)ha^roidale Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 186.Niagaran: Drummond Island, Lake Huron.Actinoceras tenuifllum (Hall).Ormoceras tenuifllum Hall, Pal. New York, 1, 1847, p. 222, pi. 58, figs. 2a-c; p.55, pi. 15, figs, la-c; pi. 16, figs, la-e; pi. 17, figs, la, b.?Saemann, Paleonto-graphica, 3, 1852, p. 142.?Ban-ande, Neues Jahrb. f. Min., etc., 1855, p. 398,405.?Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 72.?Chap-man, Canadian Jour., n. s., 8, 1863, p. 20, fig. 129, p. 198, fig. 171; Expos.Min. Geol. Canada, 1864, p. 128, fig. 129, p. 170, fig. 171.?Chamberlin,Geol. Wisconsin, 1, 1883, p. 158, fig.?Lesley, Geol. Surv. PennsylvaniaRep. P. 4, 1889, p. 504, fig.Hormoceras tenuifllum Clarke and Ruedemann, Bull. New York State Mus., 65,1903, p. 602 (gen. ref.)Actinoceras tenuifllum D'Orbigny, Prod. Pal., 1, 1849, p. 3 (gen. ref.).?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 151. ? Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 115, fig. 1351. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 15Actinoceras tenulfllum?Continued.Orthoceras (Ormoceras) tenuifilum Barrande, Syst. Sil. du Centre Boheme, 2, pt.3, 1874, p. 754, pi. 237.Orthoceras tenuifilum James, Jour. Cincinnati See. Nat. Hist., 8, 1886, p. 241.Black River: Watertown, Lowville, etc., New York (Watertown); Kentucky;Tennessee.Actinoceras tenuifllum distans (Hall).Ormoceras tenuifilum? var. distans Hall, Pal. New York, 1, 1847, p. 58, pi. 17,fig. 2.Black River (Watertown): Watertown, etc., New York.Actinoceras turgidonummulatiim (Foerste).Orthoceras (Actinoceras) turgido-nummulatus Foerste, Proc. Boston Soc. Nat.Hist., 24, 1889, p. 285, pi. 8, fig. 7; Geol. Surv. Ohio, Pal. 7, 1893, p. 538, pi.33, fig. 7; pi. 35, figs. 1, 2.Upper Medinan (Brassfield): Soldiers Home, near Dayton, OhioActinoceras vertebratum (Hall).Ormoceras vertebratum Hall, Pal. New York, 2, 1852, p. 94, pi. 29, fig. la-g. ? Lesley, Geol. Surv. Pennsylvania Rep., P 4, 1889, p. 504, figs.Orthoceras (Ormoceras) vertebratum Barrande, Syst. Sil. du Centre Boheme, 2,pt. 3, 1874, p. 755, pi. 232, 237.Actinoceras vertebratum Foord, Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 185.Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 528, fig. 1078.Lower Clinton: Reynale's Basin, New York.Actinoceras whitei (Stokes).Orthocerae ?? Bigsby, Trans. Geol. Soc. London, 1, pt. 2, 1824, p. 204, pi.30, fig. 2.Ormoceras whitei Stokes, Proc. Geol. Soc. London, 2, 1838, p. 689; Trans. Geol.Soc. London, 2d ser., 5, 1840, p. 709.Actinoceras whitei Foord, Cat. Foss. Ceph. British Mus., 1, 1888, j). 184.Orthoceras Backi Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 731,pi. 437, figs. 17, 18.Niagaran: Drummond Island, Lake Huron.Actinoceras youngi (Foerste).Orthoceras (Actinoceras) youngi Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889,p. 284, pi. 8, fig. 3; Geol. Surv. Ohio, Pal., 7, 1893, p. 537, pi. 33, fig. 3; pi.36, fig. 1.Upper Medinan (Brassfield): Hanover, Indiana; Dayton, Ohio.AcTiNOCRiNiTES TENNESSEE.E Troost. See Periechocriuus tennesseensis and P.dubius.AcTiNOCRiMTES vERNEUiiJ Troost. Scc Melocrluus rocmeri.AcTiNOCRiNus CHRisTYi Hall. See Periechocriuus whitfieldi.AcTiNOCRiNus Meeki Lyou. See Macrostylocrinus meeki.AcTiNOCRiNus OBPYRAMiDALis Wlnchell and Marcy. See Melocrinus obpyramidalis.AcTiNOCRiNus? PLUMOsus Hall. See Glyptocrinus plumosus.AcTixocRiNus poLYDACTYLus Bonny. See Melocrinus pachydactylus.ACTINOCRINUS (Saccocrinus) semiradiatus Hall. See Macrostylocrinus semi-racUatus. 16 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.AcTiNocRiNus spEciosus Meek and Worthen. See Periechocrinus speciosus.AcTiNocRiNus suBCRASsus Meek and Worthen. See locrinus snbcrassus.AcTiNocRiNus TENuiRADiATus Hall. See Palseocystites tenuiradiatus.ACTINOCRINUS WALDRONENSis Shumatd. See Periechocrinus whitfieldi.ACTINOCRINUS WHiTFiELDi Shiimard. See Periechocrinus whltfieldi.ACTINODICTYON Parky. Genotype: A. canadense Parks.Actinodictyon Parks, Univ. Toronto Studies, Geol. Ser., No. 6, 1909, p. 30.Actlnodictyon canadense Parks.Actinodictyon canadense Parks, Univ. Toronto Studies, Geol. Ser. No. (i, 1909,p. 32, pi. 20, tigs. 1, 2.Niagaran: Southampton Island, Hudson Bay, Canada.Actinodictyon keelei Parks.Actinodictyon keelei Parks, Univ. Toronto Studies, Geol. Ser. No. 5, 1909, p.35, pi. 19, figs. 5, 6.Niagaran: Gravel River, Mackenzie District, Canada.Actinodictyon lowl Parks.Actinodictyon lowi Parks, Uni\\ Toronto Studies, Geol. Ser. No. 6, 1909, p. 33,pi. 20, figs. 3, 4.Niagaran: Southampton Island, Hudson ]>ay, Canada.Actinodictyon neptuni Parks.Actinodictyon neptuni Parks, Uni\'. Toronto Studies, Geol. Ser. No. (i, 1909, p.34, pi. 20, figs. 5, 6.Niagaran: Southampton Island, Hudson Bay, Canada.AcTiNODONT.v Phillips. See Lyrodcsnia Conrad.AcTiNOMYA ULrich. See "WTiiteavesia Ulrich.ACTINOPTERIA Hall. Genotype: A. decussata Hall.Actinopteria Hall, Pal. New York, 5, pt. 1, Lam. (adv. copy), 1883, p. 3; ibid.,1884, p. xii; 35th Rep. New York State Mus. Nat. Hist., 1884, p. 406b; 1stRep. State Geol. New York, 1884, p. 13.?Miller, N. A. Geol. Pal., 1889, p.459.?Nettelroth, Kentucky, Foss. Shells, Geol. Sui-v. Kentucky, 1889, p.229.?Jackson, Mem. Boston Soc. Nat. Hist, 4, 1890, p. 386.?Whidborne,Mon. Dev. Fauna South England, 2, Pal. Soc, 1892, p. 59.?Grabau, Bull.Buffalo Soc. Nat. Sci., 6, 1899, p. 245.?Clarke, Archiv. Mus. Nac. de Janeiro,10, author's Eng. ed., 1900, p. 45.?Hind, Mon. British Carb. Lamell., 2,Pal. Soc, 1901, p. 22.Actinopteria bella Williams.Actinopteria bella Williame, Proc. U. S. Nat. Mus., 45, 1913, p. 342, pi. 30, figs.17, 19.Silurian (Pembroke): Leighton Cove, Washington County, Maine.Cotypes.?Ca.t. No. 58964, U.S.N.M.Actinopteria communis (Hall).Avicula communis Hall, Pal. New York, 3, 1859, p. 286, pi. 3, figs. 1-7; pi. 53,figs. 1, 4, 6.Actinopteria communis Clarke, Mem. New York State Mus., 3, No. 3, 1900, p.34, pi. 4, figs. 1, 2.?Weller, Pal. New Jersey, 3, 1903, p. 292, pi. 31, fig. 21.?Ohern, Maryland Geol. Surv., Low. Dev., 1913, p. 455, pi. 76, figs. 2-4.Helderbergian : Helderberg Mountains, etc.. New York; New Jersey; Cumber-land, Maryland (Keyser, etc.). BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 17Actlnopterla dlspar Williams.Actinopteria dispar Williams, Proc. IT. S. Nat. Miis., 45, 1913, p. 343, pi. 30,figs. 20, 21.Silurian (Pembroke): Leighton Cove, Washington County, Maine.Cotypes.?CB.t. No. 58966, U.S.N.M.AiTiNopTERiA EMACERATA Wliitfield and Hovey. See Pterinea emacerata.Actinopteria fornicata Williams.Actinopteria fornicata Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 343, pi. 30,figs. 14-16.Silurian (Pembroke): Youngs Cove, Washington County, Maine.Holotijpe.?Cat. No. 58965, U.S.N.M.Actinopteria reticulata Weller.Actinopteria reticulata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 245, pi.22, fig. 3.?Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 459, pi. 76,fig. 6.Helderbergian : Near Tri States, New York (Decker Ferry); Keyser, West Virginia(Keyser).AcTiNOSTOMA Young and Young. See P'enestella Lonsdale.ACTINOSTROMA Nicholson. Genotype: A. clathratum Nicholson.Actinostroma Nicholson, Mon. British Strom., Pal. Soc, 1886, p. 75.?Uhich,Geol. Surv. Illinois, 8, 1890, p. 221.?Pocta, Syst. Sil. Centre Boheme, 8, pt.1, 1894, p. 142.?Zittel-Eastman Textb. Pal., 1, 1900, p. 112; 2d ed., 1913, p.122.Actinostroma franldincnse Parks.Clathrodictyon franklinense Ami., Cruise of the "Neptune," 1906, p. 329 (nom.nud.). Actinostroma franklinense Parks, Univ. Toronto Studies, Geol. Ser. No. 6,1909, p. 27, pi. 19, figs. 3, 4.Niagaran: Beechy Island, Lancaster Sound, Canada.Actinostroma inflectum Parks. See Actinostroma tenuifilatum inflecturn.Actinostroma matutinum Nicholson.Actinostroma matutinum Nicholson, Ann. Mag. Nat. Hist., 6th ser., 7, 1891, p. 322,pi. 9, figs. 1, 2.?Whiteaves, Canadian Kec. Sci., 7, 1895, p. 134.?Parks,Univ. Toronto Studies, 'Geol. Ser., No. 5, 1908, p. 14.Silurian: L'Anse au Gascon, Baie de Chaleur, Quebec.Actinostroma tenuifilatum Parks.Actinostroma tenuifilatum Parks, Univ. Toronto Studies, Geol. Ser., No. 5, 1908,p. 10, pi. 9, figs. 1-3; Ibid., No. 6, 1909, p. 25.Niagaran: Ann Arbor, Michigan (drift); Drummonds Island, Lake Huron, Pagwa-chuan River, and Southampton Island, Hudson Bay, Canada.Cotypes.?Csit. Nos. 36828, 36829, U.S.N.M.Actinostroma tenuifilatum cylindricum Parks.Actinostroma tenuifilatum var. cylindricum Parks, ITniv. Toronto Studies, Geol.Ser., No. 6, 1909, p. 26.Niagaran: Southampton Island, Hudson Bay. Canada.Actinostroma tenuifilatum inflectum Parks.Actinostroma inflectum Parks, Ottawa Nat., 22, 1898, p. 27; Univ. TorontoStudies, Geol. Ser., No. 5, 1908, p. 11.84243??Bull. 92?15 2 18 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Actinostroma tenuifllatum inflectum?Continued.Actinostroma tenuifilatum var. inflectum, Parks, Univ. Toronto Studies, Geol.Ser. No. 6, 1909, p. 25, pi. 19, figs. 1 and 2.Niagaran: Pagwachuan Paver and Little Current River, Canada.Actinostroma tenuissimum Parks.Actinostroma tenuissimum Parks, Univ. Toronto Studies, Geol. Ser., No. 6, 1909,p. 42, pi. 18, figs. 2, 3, 9, and 12.Cayugan (Cobleskill): Schoharie County, New York.Actinostroma? trentonense Ulrich and Everett.Actinostroma? trentonenvie Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, j).282, pi. 7, figs. 3a, b.Black Biver (Platteville): Near Dixon, Illinois.Sections of holotype?Cat. No. 46545 U.S.N.M.Actinostroma trentonensis Weller. See SolenoiJora compacta.Actinostroma vulcana Parks.Actinostroma vulcana Parks, Univ. Toronto Studies, Geol. Ser., No. 4, 1907, p. 10,pi. 1, figs. 1, 2, 5.Niagaran (Guelph): Durham, Ontario.Actinostroma whiteavesi niagarense Parks.Actinostroma whiteavesii var. niagarense Parks, Univ. Toronto Studies, Geol.Ser., No. 5, 1908, p. 11, pi. 12, figs. 4-5.Niagaran (Lockport): Thorold, Ontario. .^CHMINA Jones and Holl. Genotype: A. cuspidata Jones and Holl,^chmina Jones and Holl, Ann. Mag. Nat. Hist., 4th eer., 3, 1869, p. 217.?Zittel,Handb. Pal., 2, 1885, p. 557.?Vogdes, Ann. New York Acad. Sci., 5, 1889,p. 4, pi. 2, fig. 6.?Miller, N. A. Geol. Pal., 1st App., 1892, p. 704.?Koken,Die Leitfossilien, Leipzig, 1896, p. 40.?Grabau, Bull. Buffalo Soc. Nat. Sci.,6, 1899, p. 308.?Ulrich, Zittel-Eastman Textb., Pal., 1, 1900, p. 644.?Grabau, Bull. New York State Mus., 45, 9, 1901, p. 220; Bull. Buffalo Soc.Nat. Sci., 7, 1901, p. 220.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 345.?Bassler, Zittel-Eastman Textb., Pal., 2d ed., 1913, p. 738.iEchmina abnormis Ulrich.iEchmina abnormis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, i\ 183,pi. 12, figs. 7a, 7b.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 346,fig. 1660, h-j.Clinton (Rochester): Lockport, etc. New York, Maryland, etc.Holotype.?Cat. No. 41372, U.S.N.M. ^CHMiNA Byrnesi Jones. See Dicranella? byrnesi. .^chmina spinosa (Hall).Cytherina spinosa Hall, Pal. New York, 2, 1852, p. 317, pi. 67, figs. 17-21.Beyrichia spinosa Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80(gen. ref.). .ZEchmina spino.m Jones and Holl, Ann. Mag. Nat. Hist., 4th ser., 3, 1869, p. 218(gen. ref.).?Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 11, pi. 13,figs. 4-8.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 220, fig. 152;Bull. New York State Mus., 45, No. 9, 1901, p. 220, fig. 152.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 345, fig. 1659.Clinton (Rochester): Lockport, Rochester, etc.. New York; Ontario; Pemisylvania;Maryland. BIBLIOGRAPHIC UST OF GENERA AND SPECJES. 10 -Egilops Hall. Genotype: M. eu))carinata Hall,^gllops Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 179 (doc.ed., p. 171).iEgilops Biibcarinata Hall.jEgilops eubcarinata Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed.,1850, p. 179, pi. 4., figs, la, b (doc. ed., p. 171).Trenton: Near Lowville, Lewis County, New York.Observation.?Not recognized. Founded on cast of undetermined pelecyj)od. ^ONiA Burmeister. See Proetus Steininger. ^siocYSTis Bather. See Jisiocystites Miller and Gurley.iESIOCTSTITES Miller and Gurley. Genotype: A. priscus Miller and Gurley.J<)siocystite8 Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894, p. 13. ? Miller, N. A. Geol. Pal., 2d App., 1897, p. 732.iEsiocystis Bather, Treatise on Zoology (Lankester), pt. 3, 1900, p. 208.JEsiocystites priscus Miller and Gurley. ^siocystites priycus ]\Iiller and Gurley, Bull. Illinois State Mus,, 5, 1894, p. 14,pi. 2, figs. 10-12.?Miller, N. A. Geol and Pal., 2d App., 1897, p. 732, text fig.1281.Trenton (Curdsville): Mercer County, Kentucky.iETHOCTSTITES Miller. Genotype: M. sculptus Miller. .^thocystites Miller, N. A. Geol. Pal., 1st App., 1892, p. 673; 18th Ann. Rep.Indiana Dep. Geol. Nat Res., 1894, p. 263. (Adv. sheets, 1892, p. 9.)?Bather, Treatise on Zoology (Lankester), pt. 3, 1900, p. 57.iEthocystites sculptus Miller. -Ethocystites eculptus Miller, N. A. Geol. Pal., 1st App., 1892, p. 673, fig. 1207;18th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1894, p. 264, pi. 2, fig. 2.(Advance sheets, 1892, p. 10, pi. 2, fig. 2.)Niagaran (Laurel): St. Paul, Indiana.Agaricia Swindernana Goldfuss. See Thecia swindernana.AGELACRINITES Vanuxem. Genotype: A. hamiltonensis Vanuxem.Agelacrinites Vanuxem, Geol. Surv. New York, 3d dist., 1842, p. 158.?Beyrich,Neues Jahi-b. f, Min., etc., 1846, p. 192.?Forbes, Mem. Geol. Surv. GreatBritain, 2, pt. 2, 1848, p. 519.?Hall, Pal. New York, 2, 1852, p. 236 footnote.?Billings, Canadian Jour., 2, 1854, p. 271.?Chapman, Canadian Jour., n. b.,5, 1860, p. 358, 361; Ann. Mag. Nat. Hist., 3d ser., 6, 1860, p. 159; Expos. Min.Geol. Canada, 1864, p. 110.?Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 53(footnote).?Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 290; 2d ed.1881, p. 481.?Barrande and Waagen, Syst. Sil. du Centre Boheme, 7, pt. 1,1887, p. 83, pi. 37.?Jaekel, Stammesges. Pelmat., 1, 1899, p. 49.?Zittel,Grundzuge Pal., 1, 1910, p. 182.Agelacrinus Pictet, Traite de Pal. 2d ed., 4, 1857, p. 305.?Hall, Pal. New York,3, 1859 (1861), p. 152.?Zittel, Handb. Pal., 1, 1879, p. 414.?Sturtz, NeuesJahrb. f. Min., 2, 1886, p. 144.?Miller, N. A. Geol. Pal., 1889, p. 221.?Bather, Treatise on Zoology (Lankester), pt. 3, 1900, p. 207, fig. 3.?Clarke,Bull. New York State Mus., 49, 1901 (1902), p. 184.?Haeckel, Amphorideenu. Cystoideen, 1896, p. 112.?Grabau and Shinier, N. A. Index Fossils, 2,1910, p. 472.?Springer, Zittel-Eastman Textb. Pal. 1, 1913, p. 169.?Foerste,Bull. Sci. Lab. Deiuson Univ. 17, 1914, p. 399.Agelacrinus (Agelacrinites) Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 353.Agelacystis Haeckel, Amphorideen u. Cystoideen, 1890, p. 114. 20 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Agelacrinites aiistini (Foerste).Agelacrinua austini Foerste, Bull. Sri. Lab. Denison Univ., 17, 1914, p. 444, pi. 6,fig- 1.Richmond (Whitewater): Four and one-half mileH north\^est Wilmington, Ohio.Agelacrinites (Edrioahter) Bigsbyi Ohapman. See Edrioaster bigsbyi.Agelacrinites Billinghi Chapman. See Hemicystites billingsi.Agelacrinites cincinnatiensis (Roemer).Agelacrinus Oincinnatiensis Roemer, Verhdl. Nat. Hist. Ver. preuss. Rheinland,8, 1851, p. 372, pi. 8, fig. 3.?Bronn, Leth. geog., 3d ed., 2, 1855, p. 277, pi. 4,fig. 6.?Hall, Desc. n. ep. Crin., etc., 1886, p. 6.?Roemer, Leth. geog., 1,Leth. Pal., Atlas, 1876, pi. 3, fig. 16.?Zittel, Handb. Pal., 1, 1879, p. 414,fig. 291.?Miller, N. A., Geol. Pal., 1889, p. 222, fig. 241.?Foerste, Bull. Sci.Lab. Denison Univ., 17, 1914, p. 476, pi. 1, fig. 6.Agelacrinus (Lepidodiscus) Cincinnatiensis Hall, 24th Rep. New York StateCab. Nat. Hist., 1872, p. 214, pi. 6, fig. 7; Desc. n. sp. fossils, Cincinnati,Ohio, 1871, photographic pi. 2, fig. 7.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 472, fig. 1784b.Lepidodiscus cincinnatiensis Sharman and Newton, Quart. Jour. Geol. Soc.London, 48, 1892, p. 151.?Haeckel, Amphorideen u. Cystoideen, 1896, p.113, fig. 16.?Bather, Treatise on Zool., pt. 3, Echinoderma, 1900, p. 207, fig. 4.Agelacrinites (Lepidodiscus) Cincinnatiensis Meek, Geol. Surv. Ohio, Pal. 1, pt.2, 1873, p. 55, pi. 3, fig. 6a, b.Agelacrinites cincinnatiensis Jaekel, Stamm. Pelmat., 1, Thecoidea, u. Cystoidea,Berlin, 1899, p. 50, pi. 2, fig. 1.?Clarke, Bull. New York State Mus., 49,1901, p. 185.May8^dlle (Fairmount-Corryville): Cincinnati, Ohio, and vicinity; Indiana;Kentucky; Tennessee.Agelacrinites dicksoni Billings.Agelacrinites dicksoni Billings, Rep. Progress 1853-56, Geol. Surv. Canada, 1857,p. 294; Canadian Org. Rem., dec. 3, Geol. Surv. Canada, 1858, p. 84, pi. 8,fig. 3, 3a, 4, 4a.?Chapman, Expos. Min. Geol. Canada, 1864, p. 110.?Grant,Trans. Ottawa Field Nat. Club, 1, No. 2, 1881, fig. 9.?Jaekel, Stamm. Pelmat.1, Thecoidea u. Cystoidea, 1899, p. 50, pi. 2, fig. 2.?Clarke, Bull. New YorkState Mus. 49, 1901, p. 191, fig. 3.Agelacrinus Dicksoni Haeckel, Amphorideen u. Cystoideen, 1896, pi. 3, fig. 29. ? Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 44 (loc. occ).Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Agelacrinites faberi (Miller).Agelacrinus faberi Miller, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 156, pi. 8,figs. 24, 25.?Foerste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 441, pi. 1,fig. 3, pi. 3, fig. 4.Lepidodiscus faberi Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 728, pi. 4, fig. 11.Richmond (Whitewater): Between Osgood and Versailles, Indiana.Agelacrinites holbrooki (James).Agelacrinus Holbrooki James, Paleontologist, No. 1, 1878, p. 2; Jour. CincinnatiSoc. Nat. Hist., 10, 1897, p. 25, figs. A, B.?Foerste, Bull. Sci. Lab. DenisonUniv., 17, 1914, p. 446, pi. 1, fig. 1, pi. 4, fig. 1. BTBLTO(iRAPHIC IJST OF GENERA AND RPECSee Batoatotua imijlicatum.ALEPIDASTER Meek. Genotype: Protaster? granuliferus Meek.Alepidaster Meek, Amer. Jour. Sci., 3d ser., 4, 1872, p. 275; Geol. Surv. Ohio,Pal., 1, 1873, p. 68.?Schuchert, Bull. U. S. Nat. Mus., 88, 1915, p. 228.Protasterina Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 95?James, ibid.,18, 1895, p. 139. (Genotype: P. fimbriata Ulrich).Alepidaster flmbriatus (Ulrich).Protasterina (Protaster) fimbriata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878,p. 95, pi. 4, figs. 9, 9a, 9b, 9c.Protasterina fimbriata James, ibid., 18, 1895, p. 139.Eden (Economy): Covington, Kentucky.Alepidaster flexuosus (Miller and Dyer).Protaster flexuosus Miller and Dyer, Joiu'. Cincinnati Soc. Nat. Hist., 1, 1878, p.31, pi. 2, figs. 1, la.?Miller, N. A. Geol. Pal., 1889, p. 276, fig. 409.?Parks,Trans. Canadian Inst., 8, 1908, p. 368.Protasterina flexuosa James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 140.Alepidaster flexuosus Schuchert, in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p.11; Bull. U. S. Nat. Mus., 88, 1915, p. 231, pi. 36, fig. 4.Maysville: Cincinnati, Oliio.Alepidaster granuliferus (Meek).Protaster? granuliferus Meek, Amer. Jour. Sci., 3d ser., 4, 1872, p. 274; Geol.Sxu-v. Ohio, Pal., 1, 1873, p. 68, pi. 3 bis., figs. 8a, b.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 775, figs.?James, Joiu-. Cincinnati Soc.Nat. Hist., 23, 1896, p. 138.?Parks, Trans. Canadian Inst., 8, 1908, p. 368.Tseniaster granuliferus Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana,1908, p. 733, pi. 3, fig. 7.Alepidaster granuliferus Schuchert, in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914,p. 11; Bull. U. S. Nat. Mus., 88, 1915, p. 230, fig. 26.Richmond: Moore's Hill, Indiana.Alepidaster miamieusis (Miller).Protaster miamiensis Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1872, p. 116, pi.5, figs. 6, 6a, 6b.?James, ibid., 18, 1895, p. 138.?Parks, Trans. CanadianInst., 8, 1908, p. 368.Alepidaster miamiensis Schuchert, in Freeh, Foes. Cat., 1, pt. 3, 1914, p. 11;Bull. U. S. Nat. Mus., 88, 1915, p. 233.Richmond (Waynesville or Liberty): Near Waynesville, Ohio.Cotypes?Cat. No. 40886, U.S.N.M.ALLOCRINUS Wachsmuth and Springer.Genotype: A. typus Wachsmuth and Springer.Allocrinus Wachsmuth and Springer in Miller, N. A. Geol. Pal., 1889, p. 222;Geol. Surv. ilLinois, 8, 1890, p. 206; Proc. Acad. Nat. Sci. Philadelpliia, 1890,p. 376; Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 306.?Bather, Treatiseon Zool., pt. 3, Echinoderma, London, 1900, p. 162.?Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 148.?Zittel, Grundzuge Pal., 1, 1910, p.162.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 191.Allocrinus benedicti Miller.Allocrinus benedicti Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892,p. 647, pi. 7, fig. 1 (Adv. sheets, 1891, p. 37); N. A. Geol. Pal., 1st App.,1892, p. 674, fig. 1210.?Wachsmuth and Springer, Mem. Mus. Comp. Zool.Harvard, 20, 1897, p. 308, pi. 24, fig. 8a, b.Niagaran (Laurel): St. Paul, Indiana. 26 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.AUocrinus typus Wachsmuth and Springer.Allocrinus typus Wachsmuth and Springer, Geol. Surv. Illinois, 8, 1890, p. 207,pi. ]4, figs. 7, 7a, b; Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 307, pi.24, fig. 7a, b.Niagaran (Brownsport): Wayne and Decatur Counties, Tennessee.ALLOCYSTITES Miller. Genotype: A. hammelli Miller.Allocystites Miller, N. A. Geol. Pal., 1889, p. 222.?Jaekel, Stammes. Pelmat., 1,Thecoidea u. Cystoidea, Berlin, 1899, p. 398.?Zittel, Grundzuge Pal., 1,1910, p. 72.Allocystites hammelli Miller.Allocystites hammelli Miller, N. A. Geol. Pal., 1889, p. 222, fig. 242.?Jaetel,Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 398.Clinton (Osgood) : Jefferson County, Indiana.ALLODESMA Ulrich. Genotype: Modiolopsis subelliptica Ulrich.Modiolopsis (j^art) Ulrich, 19th Ann. Rep. Geol. and Nat. Hist Surv. Minnesota,1892, p. 226.Allodesma Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 617.?Dall, Zittel-EastmanTextb. Pal., 1, 1900, p. 393; ibid., 2d ed., 1913, p. 470.Allodesma subelllpticum (Ulrich).Modiolopsis subelliptica Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv., Minne-sota, 1892, p. 226, fig. 12.Allodesma subellipticum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 617, pi. 42,figs. 9-14.?Ruedemann, Bull. New York State Mus., 162, 1912, p. 103, pi.6, fig. 11.Trenton: Near Cannon Falls, Minnesota (Prosser); Canajoharie, New York (Cana-joharie).Holotype and plesiotype.?C-At. No. 46078, U.S.N.M.ALLONEMA Ulrich and Bassler. Genotype: A. botelloides Ulrich and Bassler.Allonema Ulrich and Bassler, Smith. Misc. Coll. (Quart. Issue), 45, 1904, p.276-279.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 12.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 118.?Bassler, Zittel-Eastman Textb.Pal., 1913, p. 318.Allonema waldronense Ulrich and Bassler.Allonema waldronense Ulrich and Bassler, Smith. Misc. Coll. (Quart. Issue), 45,1904, p. 283, pi. 67, fig. 5.?Bassler, Bull. U. S. Geol. Survey, 292, 1906, p.13, pi. 4, fig. 9.Niagaran: Waldron, Indiana (Waldron) ; Middleport, New York (Rochester).Holotype.?Gat. No. 43128, U.S.N.M.ALLONYCHIA UMch. Genotype: Ambonychia (Megambonia) jamesi Meek.Megambonia Meek (not Hall, 1859), Proc. Acad. Nat. Sci., Philadelpliia, 1872, p.321.Allonycliia Uhich, Geol. Surv. Oluo, 7, 1893, p. 640.?Cumings, 32d Ann. Rep.,Dep. Geol. Nat. Res. Indiana, 1908, p. 978.?Grabau and Shimer, N. A.Index Fossils, 1, 1909, p. 432.Anonychia flanaganensls Foerste.Anonychia fianagauensis Foerste Bull. Sci. Lab. Denison Univ. 17, 1912, p. 30;Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 134, pi. 2, fig. 1.Trenton (Cyntliiana): Flanagan, etc., Kentucky. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 27Anonychia JainesI (Meek).Megambonia jamesi Meek, Proc. Acad. Nat. Sci. Philadelpliia, 1872, p. 321; Geol.Surv. Ohio, Pal. 1, 1873, p. 136, pi. 12, figs. 9a, b.?Miller, Cincinnati Quart.Jour. Sci., 1, 1873, p. 13; ibid. 1874, p. 225.Ambonychia jamesi Miller, N. A. Geol. Pal., 1889, p. 460 (gen. ref.)Anonychia jamesi IJlrich, Geol. Surv. Oliio, 7, 1893, p. 641, pi. 48, fig. 7.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 986, pi. 43,fig. 2.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 432.Maysville (Corryville): Cincinnati, Ohio, and vicinity.Plesiotype?Oat. No. 46079, U.S.N.M.Anonychia ovata Ulrich.Anonychia ovata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 641, pi. 48, figs. 4-6.Maysville (Fairmount): Co\'ington, Kentucky.Holofype.?Cat. No. 46080 U.S.N.M.Anonychia subrotuuda Ulrich.Anonychia subrotuuda Ulrich, Geol. Surv. Ohio, 7, 1893, p. 642, pi. 48, figs. 8, 9.Maysville (Corryville): Cincinnati, Ohio.Holotype.?Cat. No. 46081, U.S.N.M.ALVEOLITES Lamarck. Genotype: A. suborbicularis Lamarck.Alveolites Lamarck, Syst. des Anim. sans. Vert., 1801, p. 375.?-Steininger, Mem.Soc. Geol. France, 1, 1834, p. 333.?Koninck, Desc. Animaux Fossiles,Leige, 1842, p. 11.?Dana, Wilkes' U. S. Expl. Exped. 1838-42, 7, Zoophytes,1846, p. 537.?Edwards and Haime, Compt. Rend. I'Acad. Sci., 29, 1849. p.260.?Iving, Mon. Permian Foss. England, Pal. Soc, 1850, p. 29.?Edwardsand Haime, Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist., 5),1851, p. 153; McCoy, British Pal. Rocks Foss., 1854, p. 68.?Pictet, Traite dePal., 2d ed., 4, 1857, p. 442.?Billings, Canadian Jour., n. s., 4, 1858, p. 114.?Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 263.?Rominger, Amer.Jour. Sci. and Arts, 2d ser., 34, 1862, p. 390.?Duncan, Rep. 41st MeetingBritish Assoc. Adv. Sci., 1872, p. 132.?Salter, Cat. Camb. Sil. Foss., 1873, p.106.?Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 53; Geol. Mag., dec.2, 1, 1874, p. 14.?Rominger, Geol. Surv. Micliigan, 3, pt. 2, 1876, p. 40.?Nicholson, Trans. Royal Soc. Edinburgh, 27, 1876, p. 247.?Nicholson andEtheridge, Jour. Linnean Soc. London, Zool., 13, 1877, p. 353, 354.?Nichol-son, Tab. Corals, 1879, p. 117.?Zittel, Handb. Pal., 1, 1880, p. 618.?Roemer,Leth. geog., pt. 1, Leth. Pal., 1883, p. 441.?Han and Simpson, Pal. New York6, 1887, p. xiii.?Nicholson, Geol. Mag., dec. 3, 5, 1888, p. 107.?Miller,N. A. Geol. Pal., 1889, p. 170.?Lambe, Cont. Can. Pal., Geol. Surv. Canada,4, pt. 1, 1899, p. 20.?James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 4, 1893,pp. 147, 148.?Sardeson, Neues Jahrb. Min., Geol., Pal., Beilage-Band, 10,1896, p. 315.?Zittel-Eastman Textb. Pal., 1, 1900, p. 100.?Pocta, Syst. Sil.du Centre Boheme, 8, pt. 2, 1902, p. 266.?Grabau and Shimer, N. A. IndexFos^ls, 1, 1906, p. 91.?Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 114.Alveolites? arcticus Woodward.Alveolites? arctica Woodward, Geol. Mag., dec. 2, 5, 1878, p. 289, pi. 10, fig. 7.Niagaran: Beechy Island, Arctic America.Alveolites expansa James. See Ceramopora? expansa.Alveolites exsul Hall. See Lioclema? exsul.Alveolites fibrosus Davis.Alveolites fibrosus Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, pi. 46, fig. 8.Niagaran (Louisville): Near Louisville, Kentucky. 28 BULLETIN f)2, UNITED STATES NATIONAL MUSEUM.Alveolites granulosus James. See Stromatocerium Imronenais.AiVEOLiTES HEMISPHERICU8 D'Orbigny.Alveolites hemispherica D'Orbigny, Prodr. Pal., 1, 1849, p. 49.?Boule andThevenin, Ann. Pal., 1, 1906, p. 8, pi. 4, figs. 1-4.Silurian(?): Falls of the Ohio.Observation.?The figures given by Boule and Thevenin refer to a Devonianspecies.Alveolites Inornatus Foerste.Alveolites inornatus Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 103, pi. 3,fig. 56.Niagaran (Brownsport) : East of Linden, Tennessee.Alveolites irregularis Whitfield. See Ceramoporella? irregularis.Alveolites labechei Edwards and Haime.Alveolites labechei Edwards and Haime, Polyp. Foss. d. Terr. Pal., 1851, p. 257. ? Milne-Edwards and Haime, Brit. Foss. Corals, 1855, p. 262, pi. 61, figs. 6a-b.Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 33 (loc. ref.).Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 21.Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 285.Silurian: Great Britain and Russia; Anticosti (Jupiter River) and ManitoulinIslands, Canada (Niagaran).Alveolites louisvillensis Davis.Alveolites louisvillensis Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt.2, 1885, pi. 46, figs. 5, 6.Niagaran: Louisville, Kentucky (Louisville); West Tennessee (Brownsport).Coiype.?Cat. No. 52754 U.S.N.M.Alveolites? uiagareusis Nicholson and Hinde.Alveolites Niagarensis Nicholson and Hinde (not Rominger), Canadian Journal,n. s., 14, 1874. p. 152, fig. 3.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875,p. 56, fig. 27.Niagaran (Lockport): Rockford, Ontario.Observation.?Probably a species of Cladopora.Alveolites niagarensis Rominger. See Alveolites undosus.Alveolites pegramensts Foerste. See Pachypora (Platyaxum) pegramensia.Alveolites repens (Fought).Mllepora repens Fought, Amoen Acad., 1, 1749, p. 99.Alveolites repens Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851(Arch, du Mus. d'Hist. Nat., 5), p. 258.?Mon. British Foss. Corals, Pal. Soc,1854, p. 263, pi. 62, figs. 1, la.?Roemer, Sil. Fauna West Tennessee, 1860,p. 22, pi. 2, fig. 13, 13a.?Milne-Edwards, Hist. Nat. d. Corall., 3, 1860. p. 268.Silurian: Gotland and England;? West Tennessee.Observation.?Roemer' s reference is to some Cladopora probably distinct fromAlveolites repens (Fought),Alveolites repens Billings. See Coenites juniperina.Alveolites? seriatopora Edwards and Haime.Alveolites? seriatopora Edwards and Haime, Mon. Polyp. Foss. Terr. Pal., 1851(Arch. Mus. Hist. Nat., 5), p. 260.Silurian: Dudley, England; Bear Grass Creek near Louisville, Kentucky.Observation.?Not recognized as an American species. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 29Alveolites stromatoporoidks Rominger. tSee Dictyoslroma undulatum.Alveolites thoroldensis Parks.Alveolites thoroldensis Parks, Ihiiv. Toronto SfiuUeH, Geol. iSer. No. 5, 1908,p. 59, pi. 15, figs. 5 and 6.Niagaran: Louisville, Kentucky (Louisville); Thorold, Ontario (Lockirort).Alveolites undosus Miller.Alveolites niagarensis Rominger (not Nicholson and Hinde), Geol. Siu-v. Michigan,3, pt. 2, 1876, p. 40, 41, fig., pi. 16, figs. 1, 2.?Davis, Kentucky Fossil Corals,Geol. Sitrv. Kentucky, pt. 2, 1885, pi. 46, fig. 7.?P'oerste, Proc. Boston Soc.Nat. Hist., 24, 1889, p. 336.?Lambe, Cont. Canadian Pal., Geol. Surv.Canada, 4, pt. 1, 1899, p. 22.?Grabau and Shimer, N. A. Index Fossils, 1,1906, p. 91.Alveolites undosus Miller, N. A. Pal. Foss. (2d ed.), 1883, p. 262.Niagaran: Drummond Island, Lake Huron; Point Detour, Michigan; Lake Tem-iscaming, Saskatchewan River, etc., Quebec; Falls of the Ohio (Louisville);Dayton, Ohio; West Tennessee (Brownsport).Ambonychia of authors. See Byssonychia and Clionychia LHrich.AMBONYCHIA Hall. Genotype: A. bellistriata Hall.Ambonychia (part) Hall, Pal. New York, 1, 1847, p. 163.?McCoy, British Pal.Rocks and Foss., 1854, p. 264.?Woodward, Man. MoUusca, 2, 1854, p. 261.?Hall, Pal. New York, 3, 1859, pp. 14, 272, 523; 12th Rep. New York State Cab.Nat. Hist., 1859, pp. 8, 110.?Zittel, Handb. Pal., 2, 1881, p. 35.?Miller, N.A. Geol. Pal., 1889, p. 460.?Koken, Die Leitfossilien, Leipzig, 1896, p. 185.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 489.?Grabau and Shimer, N. A.Index Fossils, 1, 1909, p. 429.Ambonychia acutirostra Hall. See Mytilarca acutirostra.Ambonychia affiuis Ulrich.Ambonychia affinis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 492, pi. 35, figs. 5-7.Trenton (Prosser): Near Spring Valley, Minnesota; Carroll County, Illinois.Cotype.?C&t. No. 46083, U.S.N.M.Ambon ^XHiA (Megaptera) alata Meek. See Anomalodonta alata.Ambonychia amygdalina Hall.Ambonychia amygdalina Hall, Pal. New York, 1, 1847, p. 165, pi. 36, figs. 6a-c. ? Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 493, pi. 35, figs. 8, 9.?Grabau andShimer, N. A". Index Fossils, 1, 1909, p. 430, fig. 561c-d.Paleearca? amygdalina Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 65 (gen. ref.).Cypricardites amygdalina Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 22, fig.Posidonomya amygdalina Emmons, Amer. Geology, 1, pt. 2, 1855, p. 177, pi. 13,figs. 20, 21.Cleionychia amygdalina Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.).Trenton: Adams, Jefferson County, New York; Goodhue County, Minnesota(Prosser).Pledotype.?Qa,i. No. 46085, U.S.N.M.Ambonychia Aph^a Hall. See Streptomytilus aphaea.Ambonychia attenuata of authors. See Clionychia lamellosa. 30 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ambonychia bellistriata Hall.Ambonychia bellistriata Hall, Pal. New York, 1, 1847, p. 163, pi. 36, figa. 4a-d.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 819, fig. 605.?Zittel, Handb.Pal., 2, Munich, 1881, p. 35, fig. 42a.?Lesley, Geol. Surv. Pennsylvania,Rep., P. 4, 1889, p. 22, fig.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 492,pi. 35, figs. 1 and 2.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 430,fig. 561a, b.Posidonomya bellistriata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 176, pi. 13, ? figs. 5, 6.Trenton: Middleville and Trenton Falls, New York; near Wykoff, Minnesota(Prosser).Plesiotype.?CaL No. 46084, U.S.N.M.Ambonychia bellistriata Miller. See Byssonycliia vera.Ambonychia carinata Hall. See Byssonycliia carinata.Ambonychia (Megaptera) casei Meek and Worthen. See Opisthoptera casei.Ambonychia (Megaptera) casei? Meek. See Opisthoptera fissicosta.Ambonychia cincinnatiensis Miller and Faber. See Byssonycliia vera.Ambonychia costata James. See Anomalodonta costata.Ambonychia? ctirvata Raymond.Ambonychia? curvata Raymond, Amer. Jour. Sci., 20, 1905, p. 373.Chazyan (Day Point, Crown Point): Chazy, Valconr and Sloop Islands, NewYork.Ambonychia erecta Hall. See Olionychia erecta.Ambonychia excavata Miller. See Olionychia excavata.Ambonychia illinoissenisis Worthen.Ambonychia Illinoisensis Worthen, Geol. Surv. Illinois, 6, 1875, p. 495, pi. 23,figs. 4a-b.Richmond (Maquoketa): Savannah County, Illinois.Ambonychia intermedia Meek and Worthen. See Byssonychia intermedia.Ambonychia jamesi Miller. See Allonychia jamesi.Ambonychia lamellosa of authors. See Olionychia lamellosa.Ambonychia maxima Safford.Ambonychia maxima Safford, Geol. Tennessee, 1869, p. 287 (not defined;.Middle Nashville: Central Tennessee.Ambonychia mytiloides Hall. See Olionychia mytiloides.Ambonychia neglecta McChesney. See Amphicoplia neglecta.Ambonychia nitida Billings. See Mytilarca nitida.Ambonychia obesa Miller. See Byssonychia obesa.Ambonychla obtusa Hall. See Cyrtodonta obtusa.Ambonychia orbicularis (Emmons).Pterinea orbicularis Emmons, Nat. Hist. New York, Geol., 2, 1842, pp. 395, 397,fig. 3.?Owen, Amer. Jour. Sci. and Arts, 47, 1844, pp. 368, 369, fig. 3. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 31Ambonychia orbicularis?Continued.Posidonomya orbicularis Emmons, Amer. Geol., 1, pt. 2, 1855, p. 176, pi. 13,figs. 18, 19.Ambonychia orbicularis Hall, Pal. New York, 1, 1847, p. 164, pi. 36, figs. 5a-d. ? Emmons, Man. Geol., 1860, p. 99, fig. 88.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 22, fig.Trenton: Watertown and Middleville, New York.Ambonychia perangulata Miller. See Psilonychia perangulata.Ambonychia planistriata Hall.Ambonychia planistriata Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 32.?UlrichGeol. Minnesota, 3, pt. 2, 1894, p. 491, pi. 35, figs. 3 and 4.?Wliitfield, Mem.Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 58, pi. 7, figs. 3, 4.Black River (Platteville): Mineral Point and Beloit, Wisconsin; (Jannon Falls,Minnesota; Lee County, Hlinois.Plesiotype.?Cat. No. 46086, U.S.N.M.Ambonychia radiata of authors. See Byssonychia radiata.Ambonychia Rauchi McChesney.Ambonychia Rauchi McChesney, Desc. New Fossils, 1860, p. 89.Maysville or Richmond: Madison, Indiana.Observation.?Probably refers to some species of Byssonchia, but descriptionis too poor for identification.Ambonychia retrorsa Miller. See Byssonychia rotrorsa.Ambonychia robusta Miller. See Byssonychia robusta and I>. richmondeusia.Ambonychia septentrionalis ^Vhiteaves.Ambonychia septentrionalis Whiteaves, Geol. Surv. Canada, Ann. Rep. (n. s.),14, App. F, 1904, p. 46; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 255,pi. 28, fig. 5.Niagaran: Ekwan River, Canada.Ambonychia htri^cobta McChesney. See Pterinea strisecosta.Ambonychia subundata Miller. See Clioiiychia subuiidata.Ambonychia huperba Billings. See Clioiiychia superba.Ambonychia Swanana Safford.Ambonychia Swanana Safford, Geol. Tennessee, 1869, p. 287 (nom. nud.).Upper Nashville: Central Tennessee.Ambonychia tenuistriata Miller. See Byssonychia tenuistriata.Ambonychia undata Hall. See Clionychia undata.Ambonychia undulata (Whitfield).Leptodomus undulatus ^\^litfield, Ann. Rep. Wisconsin Geol. Surv. for 1877,1878, p. 81; Geol. Wisconsin, 4, 1882, p. 293, pi. 18, figs. 1, 2.Ambonychia undulata Whiteaves, Ann. Rep. Geol. Surv. Canada (n. s.), 14,App. F, 1904, p. 46; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 254,pi. 28, fig. 4.Niagaran: Wauwatosa, Wisconsin (Racine); Ekwan River, Canada. 32 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.AMPHERISTOCRINUS Hall. Genotype: A. typus HallAmpheristocrinus Hall, 11th Ann. Rep. Indiana Dept. Geol. Nat. Hist., 1882, p.278, fig.?Trans. Albany Inst., 10, 1883, p. 67, fig. (Preliminary notice, 1879). ?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Pliiladelphia, 1886, pp.115, 143.?Miller, N. A. Geol. Pal., 1889, p. 223.?Bather, Ann. Mag. Nat.Hist., 6th ser., 5, 1890, p. 332, pi. 14, fig. 18; Treatise on Zoology, pt. 3, Echi-noderma, London, 1900, p. 173.?Weller, Bull. Chicago Acad. Sci., Nat. Hist.Surv., 4, pt. 1, 1900, p. 67.Ampheristocrinus? calyx (Hall).Poteriocrinns? calyx Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882,p. 266, pi. 15, fig. 14; Trans. Albany Inst., 10, 1883, p. 66 (Preliminary notice,1879)._Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 740, fig.Niagaran (Waldron): Waldron, Indiana.Ampheristocrinus dubius Weller.Ampheristocrinus dubius Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 67, pi. 14,fig. 11.Niagaran (Racine): Romeo, Illinois.Ampheristocrinus typus Hall.Ampheristocrinus typus Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist.,1882, p. 278, pi. 15, figs. 17, 18; Trans. Albany Inst., 10, 1883, p. 67 (Prelimi-nary notice, 1879).?Miller, N. A. Geol. Pal., 1889, p. 223, text fig. 243.?Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 68.Niagaran (Waldron): Waldron, Indiana.AMPHICCELIA Hall. Genotype: A. leidyi Hall.Amphicoelia Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, (extras, 1865)p. 339; Rev. ed., p. 386.?Meek and Worthen, Geol. Surv. Illinois, 2, 1866,p. 339, footnote; 3, 1868, p. 357.?Meek, Amer. Jour. Sci. Arts, 2d ser., 44,1867, p. 173, footnote.?Miller, N. A. Geol. Pal., 1889, p. 461.Amphicoelia costata (Hall and Whitfield).Amphicoelia (Leptodomu.s?) costata Hall and Whitfield, Geol. Surv. Ohio, Pal.,2, 1875, p. 140, pi. 7, fig. 23.Amphicoelia costata Miller, N. A. Geol. Pal., 1889, p. 461, fig. 773.Niagaran (Cedarville): Cedarville, Greene County, Ohio.Amphiccelia leidyi Hall.Ampliicoelia leidyi Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras,1865), p. 339, pi. 14 (5), figs. 13-15, p. 387; Rev. ed., 1870, p. 387, pi. 14, figs.13-15; p. 431, fig.; 28th Rep.New York State Mus. Nat. Hist., doc. ed., 1875,pi. 27, figs. 1, 2; mus. ed. 1879, p. 171, pi. 27, figs. 1, 2; 11th Ann. Rep.Indiana Dep. Geol. Nat. Hist., 1882, p. 313, pi. 28, figs. 1, 2.Leptodomus (Amphicoelia) leidyi WTiitfielo, Geol. Wisconsin, 4, 1882, p. 357(gen. ref.)Niagaran: Racine and Wauwatosa, Wisconsin; Bridgeport, Illinois (Racine);Waldron, Indiana; and Newsom, Tennessee (Waldron).Amphicoelia neglecta (McChesney).Ambonychia neglecta McChesney, Desc. New Fossils, 1861, p. 88.Pterinea neglecta Winchell and Many, Mem. Boston Soc. Nat. Hist., 1, 1865,pp. 96, 108.Pterinea (Ambonychia) neglecta McChesney, Plates lUust. New Sp. Fossils,1865, pi. 9, figs. 2-2b.Leptodomus ueglectus Whitfield, Geol. Wisconsin, 4, 1882, p. 292, pi. 18, figs. 3, 4. BIBUOGEAPHIC LIST OF GENERA AND SPECIES. 33Amphicoelia neglecta?Continued.Amphiccelia neglecta McChesney, Trans. Chicago Acad. Sci., 1, 1868, p. 41, pi. 9,fig. 2.?Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 358, pi. 5, fig.9a, b.?Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 66 (loo.occ).?Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana,1904, p. 449, pi. 10, fig. 10.Niagai'an: Bridgeport, Illinois; Milwaukee, Wisconsin (Racine); Wabash, In-diana; Ontario (Guelpli).Amphicoelia orbiciiloides (Grabau).A%dcula? orbiculata Hall (not Hall, 1843) Pal. New York, 2, 1852, p. 284, pi. 59,fig. 4.LjTiopecten orbiculoides Grabau, Bull. New York State Mus., 45, 1901, p. 208;Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 208.Amphicoelia orbiculata Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11,pt. 2, 1899, p. 156 (gen. ref.).Clinton (Rochester): Rochester, Niagara, etc., New York.Amphicoelia ulrichi Maynard.Amphicoelia ulriclii Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 453,pi. 75, figs. 8-10.Helderbergian (Keyser): Keyser, West Virginia.Amphidesma delafieldi Castelnau. Not recognized.Amphidesma delafieldi Castelnau, Sil. Syst., 1843, p. 44, pi. 14, fig. 10.Ordovician or Silurian: New York.AMPHIGRAPTUS Lapworth. Genotype: Graptolithus divergens Hall.Amphigi-aptus Lapworth, Geol. Mag., 10, 1873, p. 559.'?Zittel, Handb. Pal., 1,1879, p. 298.?TuUberg, Sveriges Geol. Unders., Ser. C, No. 55, 1883, p. 12.?Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 266.?Koken,Die LeitfossiUen, Leipzig, 1896, p. 328.?Roemer and Freeh, Leth. geog., 1Theil. Leth. Pal., 1, 3 Lief., 1897, p. 587.?Files and Wood, Mon. BritishGrapt., Pal. Soc, 1903, p. 121.?Ruedemaun, Mem. New York State Mus.,11, pt. 2, 1908, p. 270.Amphigraptus divergens (Hall).Graptolithus divergens Hall, Pal. New York, 3, 1859, p. 509, fig. 9; 12th Ann.Rep. New York State Cab. Nat. Hist., 1859, p. 57, fig. 9.?Canadian Org. Rem.,Geol. Surv. Canada, dec. 2, 1865, p. 13, fig. 11.?Walcott, Trans. AlbanyInst., 10, 1883, p. 35 (Adv. sheets 1879).?Lesley, Geol. Sur\% Pennsylvania,Rep. P 4, 1889, p. 264, fig.Graptolithus (Coenograptus) divergens Hall, 20th Ann. Rep., New York StateCab. Nat. Hist., 1868, p. 179, fig. 12; p. 226; rev. ed., 1868, p. 210, fig. 12;p. 223.Coenograptus (?PIeurograptus,? Pterograptiis) divergens, Roemer and Freeh,Leth. geog., Leth. Pal., 1, 1897, p. 587.Amphigraptus divergens Lapworth, Geol. Mag., 10, 1873, p. 559; Cat. West Scot,Foss., 1876, p. 5, pi. 1, fig. 70; Quart. Jour. Geol. Soc. London, 34, 1878, p.331; Ann. Mag. Nat. Hist., 6, 1880, p. 18; Trans. Royal Soc. Canada, 5, sec.4, 1886, p. 184.?Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 338.?Files andWood, Mon. British Grapt., pt. 3, 1903, p. 122, fig. 73, pi. 18, fig. 1.?Ruede-mann Mem. New York State Mus., 11, pt. 2, 1908, pp. 271-272, figs. 187-190,pi. 15, figs. 2, 3.Chazyan: Kenwood and Glenmont, New York (Normanskill); England and Scot-land (Hartfell).84243??Bull. 02?15 3 34 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Amphigraptus multifasciatus (Hall).Graptolithus multifasciatus Hall, Pal. New York, 3, 1859, suppl., pp. 508, 509,fig. 8; 12th Ann. Rep. New York State Cab. Nat. Hist., 1859, pp. 56, 57,fig. 8; Can. Org. Rem., Geol. Surv. Canada, dec. 2, 1865, p. 10, fig. 7.?Wal-cott. Trans. Albany Inst., 10, 1883, p. 35 (Adv. sheets, 1879).?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 266, fig.Graptolithus (Monoprion) multifasciatus Hall, 20th Rep. New York State Cab.Nat. Hist., 1868, p. 176, fig. 8, p. 226; rev. ed., 1870, p. 208, fig. 8; p. 223.Clematograptiis multibrachiatus Lapworth, Ann. Mag. Nat. Hist., 6, 1880, p. 20.Clematograptus multifasciatus Hopkinson, Quart. Jour. Geol. Soc. London, 31,1875, p. 652 (gen. ref.).?Lapworth, Proc. and Trans. Royal Soc. Canada, 4,1887, p. 178.?Walcott, Bull. Geol. Soc. Amer. 1, 1890, p. 338.Amphigraptus multifasciatus Elles and Wood, Mon. Brit. Graptolites, Pal. Soc,1903, p.xlii (gen.ref.).?Ruedemann Mem. New York State Mus., 11, pt. 2,1908, pp. 272-274, pi. 15, fig. 4.Chazyan (Normanskill): Kenwood, near Albany, New York; Canada.AMPHILICHAS Raymond. Genotype: Platymetopus lineatus Angelin.Platymetopus Angelin, Pal. Scand., 1854, p. 68; 3d ed., 1878, p. 68.?Nieszkow-ski, Archiv. f. Naturk. Liv-, Ehst-u. Kurl., (1), 1, 1857, p. 621.?Schmidt,Mem. I'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1885, pp. 5, 29, 39, 49.?Zittel, Handb. Pal., 2, 1885, p. 623.?Clarke, Geol. Minnesota, 3, pt. 2, 1894,p. 753.?Koken, Die Leitfossilien, Leipzig, 1896, p. 30.?Lindstrom, Kongl.Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 67.?Gurich, Neues Jahrb. f . Min., Geol. Pal. Beilage-Band, 14, 1901, p. 524, pi. 20, fig. 19.?Reed, Quart.Jour. Geol. Soc. London, 58, 1902, pp. 62, 63, 81.?Raymond, Amer. Jour.Sci., 4th ser., 19, 1905, p. 377.Paralichas Reed (new name for Platymetopus, preoccupied), Quart. Jour. Geol.Soc. London, 58, sec. F, 1902, pp. 80-82.Amphilichas RajTuond, Amer. Jour. Sci., 4th ser., 19, 1905, p. 378 (to replace thepreoccupied names Platymetopus and Paralichas).?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 308.?Slocom, Field Mus. Nat. Hist., Geol.Ser. 4, No. 3, 1913, p. 58.?Raymond, Zittel-Eastman Textb. Pal., 1913, p.721Amphilichas bicornis (Ulrich).Lichas (Hoplolichas) bicornis Ulrich, Amer. Geol., 10, 1892, p. 272, fig. 2a, d.Lichas (Platymetopus) bicornis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 748,figs. 70, 71.Richmond (Maquoketa) : Spring Valley, Minnesota.Eolotype.?Cat. No. 41949. U.S.N.M.Amphilichas clermontensis Slocom.Amphilichas clermontensis Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, No. 3,1913, p. 59, pi. 15, fig. 7.Richmond (Maquoketa): Clermont, IowaAmphilichas cucullus (Meek and Worthen).Lichas cucullus Meek and Worthen, Proc. Acad. Nat. Sci., Philadelphia, 1865,p. 266; Geol. Surv. Illinois, 3, 1868, p. 299.Lichas (Platymetopus) cucullus Clarke, Geol. Minnesota, 3, 1894, p. 746, figs. 66,67.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 236.Black River: Alexander County, Illinois (Kimmswick); Janesville, Wisconsin;Lake Winnipeg, Canada.Trenton (Prosser): Wykoff, Minnesota. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 35Amphillchas halli (Foerste).Platyniotus trentonensis (part) Hall, Pal. New York, 1, 1847, p. 235, pi. 64, fig. le(not la-d).Lichas trentonensis Miller, N. A. Geol. Pal., 1889, p. 555, fig. 1026.Lichas halli Foerste, Bull. Ser. Lab. Denison Univ., 3, 1888, p. 118, pi. 13, fig. 4.?Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 754.Lichas faberi Miller, N. A. Geol. Pal., 1889, p. 554, fig. 1024.Maysville (Corryville) : Cincinnati, Ohio, and vicinity.Cotype.?Cat. No. 43038, U.S.N.MAmphilichas jiikesi (Billings).Lichas Jukesii Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 282, fig. 269a, b;335, figs. 323a, b.Lichas (Platymetopiis) jukesi Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg,7th ser., 33, 1885, p. 29.?Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 753.Chazyau (Quebec P.): Cow Head, Newfoundland; Stanbridge, Quebec.Amphilichas minganensis (Billings).Lichas Minganensis Billings, Pal, Foss., 1, Geol. Surv. Canada, 1865, p. 181,fig. 163a, b.Lichas (Platymetopus) minganensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 753.Platymetopus minganensis Raymond, Ann. Carnegie Mus., 3, 1905, p. 355, pi. 14,figs. 1-3; p. 366, figs. 7, 8.Amphilichas minganensis Raymond, 7th Rep. State Geol. Vermont, 1910, p. 232,pi. 36, figs. 1-3, pi. 38, fig. 6, pi. 39, fig. 14; Ann. Carnegie Mus., 7, No. 1,1910, p. 72, pi. 18, fig. 6, pi. 19, figs. 13, 14.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 308, fig. 1619.?Bassler, Bull. Virginia Geol. Surv.,2, A, 1909, p. Ill, figs. 7, 8, 10.?Perkins, Rep. State Geol. Vermont, 8,1912, pi. 18, fig. 6.Lichas Champlainensis Wliitfield, Bull. Amer. Mus. Nat. Hist., 1, 1881, p. 342, pi.33, figs. 6-8.?Brainerd and Seely, Bull. Amer. Mus. Nat. Hist., 3, 1890,p. 22.Chazyan: Large Island, Mingan Islands, and Montreal, Canada; Chazy, ValcourIsland, etc.. New York, Isle la Motte, Vermont (Day Point, Valcour) ; Lexing-ton, Virginia (Liberty Hall).Amphilichas rhinoceros Slocom.Amphilichas rhinoceros Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, No. 3, 1913,p. 58, pi. 15, figs. 5-6.Richmond (Maquoketa): Elgin, Iowa.Amphilichas robbinsi (Ulrich).Lichas (Hoplolichas) robbinsi Ulrich, Amer. Geol., 10, 1892, p. 271, fig. la, b.Lichas (Platymetopus) robbinsi Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 747,figs. 68, 69.Trenton (Prosser): Near Wykoff, Minnesota.Holotype.?G&t. No. 41950, U.S.N.M.Amphilichas trentonensis (Conrad).Asaphus? Trentonensis Conrad, Jour. Acad. Nat. Sci. Philadelphia,' 8, 1842, p. 277,pi. 16, fig. 16.Platynotus trentonensis Hall, Pal. New York, 1, 1847, p. 235, pi. 64, figs. la-d.Lichas trentonensis Emmons, Amer. Geol., 1, pt. 2, 1855, pi. 15, figs. 2, 5, 18. ? Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 127.?Rowley, Missouri Bur.Geol. Mines, 2d ser., 8, 1908, p. 58, pi. 15, figs. 4, 5. 36 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Amphilichas trentonensis?Continued.Lichas (Platymetopus) trentonensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p, 753,(gen. ref.).Platymetopus trentonensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 200,pi. 15, figs. 17-19.Amphiliclias trentonensis Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 308.Trenton: Near Carlisle, Pennsylvania; Middleville. etc.. New York; Jackson-burg, New Jersey; Frankfort, Missouri.Amphion cayleyi Billings. See AnacheirUrus? apollo.Amphion multisegmentatus Portlock. See Encrinunis multiseginentatus.Amphistrophia Hall and Clarke. See Strophonella Hall.Amphoton Lorenz. See Dolichometopus Angelin.AMPLEXOPORA Ulrich. Genotype: A. cingulata Ulrich.Amplexopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 154.?Foord,Contr. Micro-Pal. Cambro.-Sil., 1883, p. 15.?Miller, N. A. Geol. Pal., 1889,p. 291.?Ulrich, Geol. Sur\'. Illinois, 8, 1890, pp. 377, 450.?Ulrich, Zittel-Eastman Textb. Pal., 1896, p. 278.?Simpson, 14th Ann. Rep. State Geol.New York for 1894, 1897, p. 577.?Nickles and Bassler, Bull. U. S. Geol.Surv., 173, 1900, p. 30.?Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904,p. 41.?Grabau and Shimer, N. A. Index Fossils, 1, 1904, p. 130.?Cum-ings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 739.?Bassler,Zittel-Eastman Textb. Pal., 1913, p. 336.Amplexopora affinis Ulrich. See Heterotrypa affinis.Amplexopora ampla Ulrich and Bassler.Amplexopora ampla Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 42, pi.13, figs. 7, 8; pi. 14, fig. 3.Maysville: Nashville and Columbia, Tennessee (Leipers); Cincinnati, Ohio (Fair-mount).Cotypes.?G&t. No. 42313, U.S.N.M.Amplexopora Canadensis Foord. See Batostoma canadense.Amplexopora cingulata Ubich.Amplexopora cingulata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 254,pi. 11, figs. 5-5c.?Miller, N. A. Geol. Pal., 1889, fig. 449 (p. 292).?Ulrich,Geol. Surv. Illinois, 8, 1890, p. 308, fig. 3c; p. 309, fig. 4c.?J. F. James, Jour.Cincinnati Soc. Nat. Hist., 16, 1894, p. 193.?Nickles, Bull. Kentucky Geol.Surv., 5, 1905, p. 55, pi. 3, fig. 6.?Grabau and Shimer, N. A. Index Fossils,1, 1907, p. 131, fig. 186g.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 758, pi. 6, figs. 1, la; pi. 26, fig. 3.Maysville (Fairmount): McKinneys Station and Boyle County, Kentucky;Cincinnati, Ohio.Cotypes ?G&t. No. 43641, U.S.N.M.Amplexopora columbiana Ulrich and Bassler.Amplexopora columbiana Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p.41, pi. 13, figs. 1-4.?Hayes and Ulrich, Folio U. S. Geol. Surv-., 95, 1903,illustration sheet, figs. 11, 12.Maysville (Leipers): Columbia, etc., Tennessee.Cotypes.?G&t. No. 43211, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 37Amplexopora cylindracea Ulrich and Bassler.Amplexopora cylindracea Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p.43, pi. 13, figs. 5, 6; pi. 14, figs. 4, 5.Trenton (Catheys): Nashville, Tennessee.Cotypes.?CAt. No. 43216, U.S.N.M.Amplexopora? discoidea (Nicholson).Chsetetes discoideus James, Cat. Foss. Cincinnati group, 1871 (not defined). ? Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 511, pi. 30, figs.4-4d; Pal. Ohio, 2, 1875, p. 206, pi. 21, figs. 15-15c; Pal. Prov. Ontario, 1875,pp. 10, 32,; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 88, pi. 5, figs. 7, 7a.Chsetetes (Monticulipora) discoideus Chamberlin, Geol. Wisconsin, 1, 1883, p.153, fig.Monticulipora (Monotrj^pa) discoidea Nicholson, Genus Monticulipora, 1881, p.193, pi. 4, figs. 3, 3f.Amplexopora discoidea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 255.Foord, Contr. Micro-Pal. Cambro.-Sil., 1883, p. 17.?Bassler, Proc. U. S.Nat. Mus., 30, 1906, p. 11.Leptotrypa discoidea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 158.Cumings, 32d Ann. Rep. Dep. Geol. Nat. Hist. Res. Indiana, 1908, p. 855,pi. 20, figs. 2-2f.Monticulipora discoidea Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p.247, pi. 10, figs. 4, 5.?James and James, Jour. Cincinnati Soc. Nat. Hist.,10, 1888, p. 163.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 420,figs.^James, J. F., Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 178.Maysville: Cincinnati, Oliio, and vicinity (Fairmount); Ontario (Pulaski).Amplexopora filiasa (D'Orbigny).Monticulipora filiasa D'Orbigny, Prodr. de Pal., 1, 1850, p. 25.?Milne-Edwards,Hist. nat. des Corall, 3, 1860, p. 274.?James and James, Jour. CincinnatiSoc. Nat. Hist., 10, 1888, p. 162.?J. F. James, ibid., 15, 1893, p. 158.Chsetetes filiasa Milne-Edwards and Haime, Pol. Foss. Ter. Pal., 1851, p. 261.Nicholson, Pal. Ohio, 2, 1875, p. 206.Leptotrypa filiosa LTlrich, Geol. Surv. Illinois, 8, 1890, p. 456, pi. 36, figs. 7, 7a.Monotrypa? filiasa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 10, 1883, p. 162.Amplexopora filiasa Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.164.?Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 41, pi. 12, figs. 10,11.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 12, pi. 3, figs. 1-3.?Cumings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 765, pi. 5, fig. 2; pi. 7,figs. 1, lb.Monticulipora subcylindrica James, Jour, ("incinnati Soc. Nat. Hist., 18, 1896,p. 123, fig. 13a-c.May8\'ille (Fairmount-Corryville): Cincinnati, Ohio, and various locali'ties inOhio, Indiana, Kentucky, Tennessee, etc.Plesiotypes.?Gait. No. 44070, U.S.N.M.Amplexopora granulosa Turnings and Galloway.Amplexopora granulosa Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1913, p. 69, pi. 1, figs. 1-lc.Richmond (Liberty): Near Weisburg, Indiana.Amplexopora multispinosa Cumings. See Amplexopora septosa.Amplexopora persimllls Nickles.Amplexopora persimilis Nickles, Bull. Kentucky Geol. Surv'., 5, 1905, p. 47, pi.2, figs. 2, 3.Eden (Economy) : Cincinnati, Ohio, and vicinity. 38 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Amplexopora petasiformis (Nicholson).Chaetetes petropolitauus James, Paleontologist, No. 2, 1878, p. 11.?Bassler, Proc.U. S. Nat. Mus., 30, 1906, p. 31.Monticulipora (Monotrypa) petasiformia Nicholson, Genus Monticulipora, 1881,p. 190, fig. 40.Monotrypa petasiformis Ulrich, Jour. Cincinnati See. Nat. Hist., 5, 1882, p. 256;6, isSS, p. 163.Monticulipora petasiformis James and James, Jour. Cincinnati Soc. Nat. Hist., 10,1888, p. 168.?J. F. James, ibid., 16, 1894, p. 186.Amplexopora petasiformis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 165.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 760,pi. 6, figs. 3, 3a; pi. 26, fig. 2.Eden (Economy-McMicken): Cincinnati, Ohio, and vicinity.Amplexopora petasiformis welchi (James).Monticulipora (Monotrypa) welchi James, Paleontologist, No. 6, 1882, p. 50;No. 7, 1883, pi. 1, figs. 4-4c.Monticulipora petasiformis var. welchi James and James, Jour. Cincinnati Soc.Nat. Hist., 10, 1888, p. 169.?J. F. James, ibid., 16, 1894, p. 187.Amplexopora petasiformis-welchi Nickles and Bassler, Bull. U. S. Geol. Surv.,173, 1900, p. 165.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 13.Eden (Economy-McMicken): Cincinnati, Ohio, and vicinity.Amplexopora pumila Cumings and Galloway.Amplexopora pumila Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1913, p. 70, pi. 2, figs. 1-le.Richmond (Waynesville and Liberty): Near Weisburg, Indiana.Amplexopora pustulosa Ulrich.Amplexopora pustulosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 451, pi. 36, figs.3-3c.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 761,pi. 6, figs. 4-4b; pi. 26, fig. 1.Monticulipora pustulosa J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895,p. 72.Richmond (Waynesville): Hanover, Clarksville, etc., Ohio; Indiana.Cotype.?Cat. No. 44069 U.S.N.M.Amplexopora robusta Ulrich.Amplexopora robusta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 82, pi.1, figs. 1-16.?Miller, N. A. Geol. Pal., 1889, p. 292, fig. 450.?Ulrich, Geol.Surv. Illinois, 8, 1890, p. 318, fig. 7(/.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 762, pi. 6, figs. 5, 5b.Maysville (Bellevue): Cincinnati, Ohio, and vicinity; Indiana; Kentucky.Eolotype.?Cat. No. 43640 U.S.N.M.Amplexopora septosa (Ulrich).Atactopora septosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 125, pi. 12,figs. 7-7c.Monticulipora septosa James and James, Jour. Cincimiati Soc NaL Hist., 10, 1888,p. 180.?James, J. F., ibid., 16, 1894, p. 203.Amplexopora septosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 255. ? Nickles, BuIL Kentucky Geol. Surv., 5, 1905, p. 52, pi. 3, fig. 1.?Cumings,32d Ann. Rep. Dep. Geol. NaL 'Res. Indiana, 1908, p. 763, pi. ?, figs. 6,6b; pi. 26, fig. 4.Amplexopora multispinosa Cumings, Amor. Geol., 28, 1901, p. 376. pi. 34, figs.7-10. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 39Amplexopora septosa?Continued.Amplexopora septosa var. multispinosa Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 765, pi. 6, figs. 2, 2b; pi. 26, fig. 5.Amplexopora septosa maculosa Cumings and Galloway, 37tli Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1913, p. 71, pi. 3, figs. 1-lc.Amplexopora septosa minima Cumings and Galloway, 37th. Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1913, p. 72, pi. 4, figs. 1-ld.Eden (McMicken) and Maysville (Mt. Hope and Fairmount): Cincinnati, Ohio,and vicinity; Indiana and Kentucky.Cotypes.?Cat. No. 43621 U.S.N.M.Amplexopora septosa maculosa Cumings and Galloway. See Amplexopora sep-tosa.Amplexopora septosa minima Cumings and Galloway. See Amplexopora septosa.Amplexopora septosa multispinosa Cumings. See Amplexopora septosa.Amplexopora superba Foord. See Batostoma superbum and B. minnesotense.Amplexopora winchelli Ulrich. See Batostoma mnchelli.AMPLEXUS Sowerby. Genotype: A. coralloides Sowerby.Amplexus Sowerby, Min. Conch., 1, 1814, p. 165.?Phillips, Pal. Foss. Cornwall,Devon and W. Somerset, 1841, p. 7.?^McCoy, Syn. Char. Carb. Foss. Ireland,1844, p. 185.?Koninck, Desc. Animaux Fossiles, Leige, 1842, p. 26.?Dana,Wilkes' U. S. Expl. Exped. 1838-42, 7, Zoophytes, 1846, p. 357; Amer. Jour.Sci. Arts, 2d ser., 1, 1846, p. 184.?Edwards and Haime, Mon. d. Polyp.Foss. d. Terr., Pal., 1851 (Arch. duMus. d'Hist. Nat., 5), pp. 164, 342.?McCoy,British Pal. Rocks Foss., 1854, p. 70.?Pictet, Traite de Pal., 2d ed., 4, 1857,p. 452.?Billings, Canadian Jour. n. s., 4, 1859, p. 123.?^Milne-EdwardsHist. Nat. d. Corall., 3, 1860, p. 347.?Koninck, Animaux Foss. Terr. Carb.Belgique (Mem. I'Acad. Royal Sci. de Belgique, 39), 1872, p. 63.?Dybowski,Archiv. f. Natur. Liv-Ehst-und Kurl., 5, 1873, p. 334.?Nicholson, Rep. Pal.Prov. Ontario, pt. 1, 1874, p. 31.?Thomson and Nicholson, Ann. Mag. Nat.Hist., 4th ser., 16, 1875, p. 424.?Rominger, Geol. Surv. Michigan, 3, pt. 2,1876, p. 153.?Zittel, Handb. Pal., 1, 1879, p. 227.?Roemer, Leth. geog., pt. 1,Leth. Pal., 1883, p. 364.?Freeh, Zeits. d. geol. GeselL, 37, 1885, p. 83.?Freeh,in Dames & Kayser, Pal. Abhandl., 3, Heft 3, 1886, p. 97.?Miller, N. A.Geol. Pal., 1889, p. 171; 2d App., 1897, p. 726.?Sherzer, Amer. Geol., 7,1891, pp. 278-283.?Koken, Die Leitfossilien, Leipzig, 1896, p. 313.?Grabau,Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 123.?Zittel-Eastman Textb. Pal., 1,1900, p. 76.?Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901,p. 128.?Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 76.?Grabauand Shimer, N. A. Index Fossils, 1, 1906, p. 58.?Zittel-Eastman Textb. Pal.,2d ed., 1913, p. 83.Amplexus annulatus Whitfield. See Amplexus whitfieldi.Amplexus ciuctutus Miller.Amplexus cinctutus Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1893,p. 259, pi. 1, figs. 5, 6. (Adv. sheets, 1892, p. 5.)Niagaran (Laurel): St. Paul, Indiana.Amplexus ciugulatus Billings.Amplexus cingulatus Billings, Pal. Fossils, 1, Geol. Sur\\ Canada, 1865, p. 106.(Adv. sheets, 1862.)?Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4,pt. 2, 1901, p. 129, pi. 10, figs. 2, 3, 3a.Silurian: L'Anse a la Barbe, Bay of Chaleurs, Quebec. 40 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Amplexus feildenl Etheridge.Amplexus Feildeni Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 589,pi. 26, fig. 3.Niagaran: Offley Island, Arctic America.Amplexus fenestratus Whitfield.Ample"xusfenestratus Whitfield, Ann. Rep. for 1877, Wisconsin GpoI. Surv., 1878,p. 80; Geol. Wisconsin, 4, 1882, p. 278, pi. 15, figs. 1-3.Niagaran (Waukesha-Racine): Cato, Cato Falls, and near Clarks Jlills, Wisconsin.Amplexus junctus Hall.Amplexus junctum Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p.415 (ext. 1882, p. 11).Niagaran: Port Byi-on, Illinois.Amplexus laxatus Billings. See Pycnostylus guelphensis.Amplexus phragmoceras (Salter).Calophyllum Phragmoceras Salter, Sutherland's Jour. Voyage in Bafiin's Bay,etc., 2, 1852, p. ccxxx, pi. 6, figs. 4, 4a.?Houghton, Jour. Geol. Soc. Dublin,1, 1857, p. 245, pi. 8, fig. 1.?Etheridge, Quart. Jour. Geol. Soc. London, 34,1878, p. 585. , Amplexus phragmoceras Miller, N. A. Geol. Pal., 1889, p. 171 (gen. ref.).Niagaran: Seal Island, Baring Bay, and Cape Hilgard, Arctic America.Amplexus septatus Foerste.Amplexus septatus Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, No. 1, 1909, p.8, pi. 1, figs. 12a, b; pi. 2, figs. 16 a-c.Cayugan (Kokomo): Near Kokomo, Indiana.Amplexus shumardi (Edwards and Haime).Cyathophyllum Shumardi Milne-Edwards and Ilaime, Hist. Nat. ("orall., 3,1860, p. 372; Mon. Polyp. Foss. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5),1851, p. 370, pi. 7, fig. 3.?Roemer, Sil. Fauna West Tennessee, 1860, p. 27,pi. 2, figs. 14, 14a.Amplexus shumardi Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 153, pi.54.?Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi.132, fig. 14; pi. 138, fig. 3.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889,p. 24, fig.?Foerste, Jour. Geol., 11, 1903, p. 712.?Grabau and Shimer, N. A.Index Fossils 1, 1906, p. 59.Zaphrentis cinctosa Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 92.Zaphrentis shumardi Lam])e, Cont. Can. Pal., Geol. Surv. Canada, 4, ])t. 2, 1901,p. 121, pi. 8, figs. 3, 4.Niagaran: Perry County, etc. Tennessee (Brownsport): Masonville, Iowa;Drummond Island, Point Detour, Cockl>urn Island, etc., Lake Huron;Louisville, Kentucky; AMsconsin, etc.Amplexus uniformls Hall.Amplexus uniforme Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p.415 (ext. 1882, p. 11).Niagaran: Port Byron, Illinois.Amplexus whitfleldl Miller.Amplexus annulatus Whitfield (not Vemeuil and Haime, 1850), Ann. Rept. for1877, Wis. Geol. Surv., 1878, p. 80; Geol. Wisconsin, 4, 1882. p. 314, pi, 23,figs. 8-11.Amplexus whitfieldi Miller, N. A. Geol. Pal., 2d App., 1897, p. 726.Niagaran (Guelph): Sheboygan and Carlton, Wisconsin. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 41AMPTX Dalman. Genotype: Ampyx nasutus Dalman.Ampyx Dalman, Svenska Vet.-Akad. Handl. for 1826, 1827, pp. 252, 279.?Dalman-Engelhart, Die Palaeaden, Nurenberg, 1828, pp. 53, 72.?Eichwald,Zool. SpeciaHs, Pt. 2, Vilnse, 1830, p. 116.?Green, Mon. Tril. N. A., 1832, p.19.?Edwards, Hist. Nat. d. Crustacea, 3, 1840, p. 296.?Portlock, Rep.Gaol. Londonderry, 1843, p. 258.?Burmeister, Org. der Tril., Berlin, 1843,p. 128.?Goldfuss, Neues Jahrb. f. Min., etc., 1843, p. 540, 542.?Emmrich,Neuea Jahrb. f. Min., etc., 1845, p. 45.?Burmeister, Org. Tril., London,1846, p. 110.?Hawle and Corda, Abh. d. k. Bohmischen Gesell. d. Wiss., 5(extract), 1847, p. 38, pi. 3, fig. 19.?Forl:)es, Mem. Geol. Surv. United King-dom, Dec. 2, 1849, pi. 10.?Barrande, Neues Jahrb. f. Min., etc., 1850, p.780; Syst. Sil. du Centre Boheme, 1, 1852, p. 632.?McCoy, British Pal.Rocks Fossils, 1854, p. 147.?Pictet, Traite Pal., 2d ed., 2, 1854, p. 509.?Malaise, Desc. Terr. Sil. du Centre de la Belgique, 1873, p. 84.?Steinhardt,Beit. z. Natiu-k. Preus. Phys.-Oekon. Gesell., Konigsberg, 1874, p. 38. ? AngeHn, Pal. Scandinavica, 3d ed., Holmioe, 1878, p. 19.?Nicholson andEtheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 176.?Zittel, Handb. Pal.,2, 1885, p. 594.?Miller, N. A. Geol. Pal., 1889, p. 528.?Pompeckj, Beit.Phys.-Oekon. Gesell. Konigsberg, 1890, p. 16.?Vogdes, Amer. Geol. 11,1893, pp. 99-105.?Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 7, ser.,42, 1894, p. 74.?Beecher, Amer. Jour. Sci., 3d ser., 49, 1895, p. 307.?Koken,Die Leitfossilien, Leipzig, 1896, p. 15, fig. 8.?Beecher, Amer. Jour. Sci.,4th ser., 3, 1897, pp. 105, 184, 186, pi. 3, fig. 13.?Freeh, Leth. geog.. 1, Th.,Leth. Pal., 2, 1897, p. 32, footnote.?Ruedemann, Bull. New York StateMus., 49, 1901, p. 51.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No.8, 1901, p. 32.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 259.?Raymond, Zittel-Eastman Textb. Pal., 1913, p. 712.Lonchodomas Angelin, Pal. Scandinavica, 3d ed., Holmise, 1878, p. 80, pi. 40,fig. 11.?Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p.177.?Zittel, Handb. Pal., 2, 1885, p. 594.?Pompeckj, Beit. Phys.-Oekon.Gesell. Konigsberg, 1890, p. 16.?Vogdes, Amer. Geol., 11, 1893, p. 103.?Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 7th ser., 62, 1894, p. 75.Koken, Die Leitfossilien, Leipzig, 1896, p. 15.?Ruedemann, Bull. NewYork State Mus., 49, 1902, p. 51.?Raymond, Zittel-Eastman Textb. Pal.,1913, p. 712 (Genotype: Ampyx rostratua Sars).Ampyx aniericanus Safford and Vodges.Ampyx Americanus Safford and Vogdes, Proc. Acad. Nat. Sci. Philadelphia,1889, p. 166, fig.?Vogdes, Amer. Geol., 11, 1893, p. 106, fig. 4.Ampyx jillsoni Safford, Geol. Tennessee, 1869, p. 235 (nom. nud.).Chazyan (Athens): Bulls Gap, near Russellville, Tennessee.Ampyx (Lonchodomas) halli (Billings).Ampyx halli Billings, Rep. Econ. Geol., etc., Vermont, 1862, p. 231, fig. 365;Geol. Vt., 2, 1862, p. 959, fig. 365; Geol. Canada, Geol. Surv. Canada, 1863,p. 274, fig. 279a-c; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 24, text figs.25a-c (Adv. sheets, 1861).?Vogdes, Amer. Geol., 11, 1893, p. 106, fig. 5.Ampyx (Lonchodomus) halli Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 259, figs. 1548, 1549.Lonchodomas halli Raymond, Ann. Carnegie Mus., 3, No. 2, 1905, p. 332, pi. 10,figs. 3-7; 7th Rep. State Geol. Vermont, 1910, p. 216, pi. 32, figs. 3-6.Chazyan: St. Dominique, Canada; Highgate, Vermont; Valcour, etc.. New York(Crown Point). 42 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ampyx (Lonchodomas) hastatus Ruedemann.Ampyx (Lonchodomas) hastatus Ruedemann, Biill. New York State Mus., 49,1902, p. 48, pi. 3, figs. 1-10, 30.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.Ampyx jillsoni Safford. See Ampyx americanus.Ampyx (Lonchodomas) laeviusculus (Billings).Ampyx Iseviusculus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 295,fig. 285.Chazyan (Quebec-N): Table Head, Newfoundland.Ampyx niagarensis Van Ingen.Ampyx niagarensis Van Ingen, School of Mines Quart., 23, 1901, p. 53, fig. 15, pi.figs. 11, 11a.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 259, fig.1550.Niagaran (St. Clair): St. Clair Spring, Independence County, Arkansas.Ampyx (Lonchodomas) normalis (Billings).Ampyx normalis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 295, fig. 286. ? Miller, N. A. Geol. Pal., 1889, p. 528, fig. 958.?Vogdes, Amer. Geol., 11,1893, p. 107, fig. 6.Ampyx (Lonchodomus) normalis Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 259.Chazyan (Quebec-N, P.): Table Head and Pistolet Bay and four miles northeastof Portland Creek, Newfoundland.Ampyx quadricostatus (Emmons).Microdiscus quadricostatus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 116, pi. 1,fig. 8; Man. Geol., 1860, p. 88, fig. 73.?Barrande, Bull. Soc. Geol. France,2d ser., 18, 1861, p. 280, pi. 5, fig. 13.?Marcou, Mem. Boston Soc. Nat. Hist.,4, 1888, p. 128.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 405,fig.?Miller, N. A. Geol. Pal., 1889, p. 557, fig. 1033.Chazyan (Athens): Augusta County, Virginia.Ampyx (Lonchodomas) rutilius (Billings).Ampyx rutilius Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 296.?Vogdes,Amer. Geol., 11, 1893, p. 108.Chazyan (Quebec-P.): Foiu* miles northeast of Portland Creek, Newfoundland.Ampyx (Lonchodomas) semicostatus (Billings).Ampyx semicostatus Billings, Pal. Foss., 1, Geol. Surv. Canada, 18G5, p. 297, fig.287.?Vogdes, Amer. Geol., 11, 1893, p. 108, fig. 6.Chazyan (Quebec-N, P.): Table Head, Pistolet Bay, and four miles northeastPortland Creek, Newfoundland.Amygdalocystis Haeckel. See Amygdalocystites Billings.AMYGDALOCTSTITES Billings. Genotype: A. florealis BilKngs.Amygdalocystites Billings, Canadian Jom'., 2,1854, p. 270; Geol. Surv. Canada,Rep. for 1853-1857, 1857, p. 288; Geol. Surv, Canada, dec. 3, 1858, p. 63.?Chapman, Expos. Min. and Geol. Canada, 1864, p. 109.?Zittel. Handb. Pal.,1, 1879, p. 413.?Billings, Trans. Ottawa Field Nat. Club, 1, No. 4, 1883, p.51.?Miller, N. A. Geol. Pal., 1889, p. 223.?Jaekel, Zeits. d. d. geol. Gesell.,52, 1900, p. 675.?Zittel, Grundzuge Pal., 1, 1910, p. 184.?Grabau and Shi-mer, N. A. Index Fossils, 2, 1910, p. 462.?Springer, Zittel-Eastman Textb.Pal., 2ded., 1913, p. 151.Amygdalocystis Haeckel, Amphor. und Cystoid., 1896, p. 106.?Bather, Treatiseon Zool. (Lankester), pt. 3, 1900, p. 58, fig. 29. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 43Amygdalocystites florealis Billings.Amygdalocystitesflorealis Billings, Canadian Jour., 2, 1854, p. 270, figs. 4-6; Rep.Geol. Surv. Canada, 1857, p. 289; Canadian Org. Remains, dec. 3, Geol.Surv. Canada, 1858, p. 888, 63, pi. 6, fig. la-e; pi. 10 bis., fig. 12.?ChamberlinGeol. Wisconsin, 1, 1883, p. 154, fig.?Grabau and Shimer, N. A. Index Fos-sils, 2, 1910, p. 463, fig. 1769.Amygdalocystis florealis Haeckel, Amphorideen u. Cystoideen, 1896, p. 106, fig.15.?Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 57, fig.19.?Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 45 (loc. occ.).Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Amygdalocystites florealis laevis Billings.Amygdalocystites florealis var. Isevis Billings, Trans. Ottawa Field Nat. Club, 4,1883, p. 52.Trenton (Curdsville): Hull, Quebec.Amygdalocystites huntingtoni Wetherby.Amygdalocystites huntingtoni Wetherby, Jour. Cincinnati Soc. Nat. Hist., 4,1881, p. 177, pi. 5, fig. 3.?Miller, N. A. Geol. Pal., 1889, p. 223, fig. 245.Trenton (CurdsviUe): Mercer County, near High Bridge, Kentucky.Amygdalocystites radiatus Billings.Amygdalocystites radiatus Billings, Canadian Jour., 2, 1854, p. 271, figs. 7, 8;Rep. Geol. Surv. Canada, 1857, p. 289; Canadian Org. Rem., dec. 3, Geol.Surv. Canada, 1858, p. 65, pi. C, figs. 3a, 3b; Trans. Ottawa Field Nat. Club,1, No. 4, 1883, p. 51.Amygdalocystis radiatus Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 45(loc. occ).Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Amygdalocystites tenuistriatus Billings.Amygdalocystites tenuistriatus BilUngs, Canadian Journal, 2, 1854, p. 271, textfig. 9; Rep. Geol. Surv. Canada, 1857, p. 289; Canadian Oi^. Rem., dec. 3,Geol. Surv. Canada, 1858, p. 64, pi. 6, figs. 2a-f.Trenton (Curdsville): Ottawa, Ontario.ANABAIA Clarke. Genotype: A. paraia Clarke.Anabaia Clarke, Archives Mus. Nac. Rio de Janeiro, 10, author's Eng. ed., 1900,p. 12.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 417.Anabaia anticostiana Clarke. See Camarotcechia decemplicata.Anabaia paraia Clarke.Anabaia paraia Clarke, Archives Mus. Nac. Rio de Janerio, 10, author's Eng. ed.,1900, p. 12, pi. 2, figs. 1-9.Silurian: Rio Trombetas, Brazil.ANACHEIRURUS Reed. Genotype: Eccoptocheile frederici Salter,Anacheirurus Reed, Geol. Mag., dec. 4, 3, 1896, p. 119.Anacheirurus? apollo (Billings).Cheirurus Apollo BiUings, Canadian Nat. Geol., 5, 1860, p. 322, fig. 28; Geol.Canada, Geol. Surv. Canada, 1863, p. 239, fig. 275; Pal. Fose., 1, Geol. Surv.Canada, 1865, p. 413, fig. 397.Ceraunis (Cyrtometopus) apollo Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 738.Pseudosphaerexochus apollo Raymond, Bull. Victoria Memorial Mus., 1, 1913,p. 36, pi. 4, figs. 1, 2. 44 BULLETIN 92; UNITED STATES NATIONAL MUSEUM.Anacheirurus? apollo?Contiiiued.Anacliemirus? apollo Raymond aud Barton, Bull. Mus. Comp. Zool., 54, No. 20,1913, p. 543 (gen. ref.).Amphion Cayleyi Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 239, fig.277; Pal. Fobs., 1, Geol. Surv. Canada, 1865, p. 413, footnote, fig. 398.Canadian or Ozarkian? (Levis-erratic) : Point Levis, Quebec.ANAPHRAGMA Ulrich and Bassler. Genotype: A. mirabile ULrich and Bassler.Anaphragma Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 49.?Bassler,Bull. U. S. Nat. Mus., 77, 1911, p. 297.Anaphragma mirabile Ulrich and Bassler.Anaphragma mirabile Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 49,pi. 13, figs. 9-11.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 298, 299.fig. 183.Richmond: Wilmington, Illinois (Fernvale); Delafield and Iron Ridge, Wis-consin (Maquoketa) ; Island of Dago, Baltic Sea (Lyckholm).Cotypes and plesiotype: Cat. Nos. 43218, 57385, U.S.N.M.ANASTROPHIA Hall. Genotype: Pentamerus vemeuili Hall.Brachymerus Shaler (not Dejean, 1834), Bull. Mus. Comp. Zool., 4, 1865, p. 69. ? Zittel, Handb. Pal., 1, Munich, 1880, p. 694.?Koken, Die Leitfossilien,Leipzig, 1896, p. 244.Anastrophia Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 163; Pal.New York, 4, 1867, p. 374.?Nettelroth, Kentucky Fossil Shells, Mem.Kentucky Geol. Surv. 1889, p. 47.?Miller, N. A. Geol. Pal., 1889, p. 333.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 224; 13th Ann. Rep. NewYork State Geol., 1895, p. 839.?Schuchert, Zittel-Eastman Textb. Pal., 1,1900, p. 321.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 189; Bull.New York State Mus., 9, 1901, p. 189.Anastrophia brevirostris (Hall).?Terebratula brevirostris Sowerby, Murchieon's Sil. Syst., 1839, p. 631, pi. 13,fig. 15.Atrypa brevirostris? Hall, Pal. New York, 2, 1852, p. 278, pi. 58, fig. 1.Pentamerus brevirostris Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,P-77.Rhynchonella brevirostris Billings, Geol. Canada, 1863, p. 315, fig. 324.?Lesley,Geol. Surv. Pennsylvania Rep. P 4, 1889, p. 884, fig.Anastrophia bre\drostris Schuchert, Btill. U. S. Geol. Surv., 87, 1897, p. 142.Grabau, Bull. New York State Mus., 45, 1901, p. 190, fig. 102; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 190, fig. 102. ? Clinton (Rochester): Lockport, etc.. New York.Anastrophia? hemiplicata Winchell and Schuchert. See Parastrophia hemiplicata.Anastrophia? hemiplicata var. rotunda Winchell and Schuchert. See Parastrophiahemiplicata rotunda.Anastrophia internascens Hall.Anastrophia vemeuili Hall (not Hall, 1859), 28th Rep. New York State Mus.Nat. Hist., doc. ed., 1876, pi. 26, figs. 41-49.Anastrophia internascens Hall, ibid., 1879, p. 168, pi. 26, figs. 41-49; 11th Rep.State Geol. Indiana, 1882, p. 311, pi. 26, figs. 41-49.?Nettelroth, KentuckyFossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 47, pi. 32, figs. 17-20.?Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 32, pi. 3, figs.14-16.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 224, pi. 63, fig. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 45Auastrophia internascens?Continued.30.?Miller, N. A. Geol. Pal., 1889, p. 333, text fig. 538.?Kindle and Breger,28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 434, pi. 2, fig. 10.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 272, fig. 329.Niagaran: Waldron, Indiana, and Newsom, Tennessee (Waldron and Laurel);Louisville, Kentucky (Louisville); Wabash, Indiana; Milwaukee, Wisconsin.Plesiotype.?Cat. No. 51336, U.S.N.M.Anastrophia interplicata (Hall).Atrypa interplicata Hall, Pal. New York, 2, 1852, p. 275, pi. 57, fig. 2.Pentamerus interplicatus Hall, 12th Rep. New York State Cab. Nat. Hist. 1859,p. 77.?Safford, Geol. Tennessee, 1869, p. 315, fig. 7.Anastrophia interplicata Miller, Amer. Pal. Fossils, 1877, p. 104.?Hall and Clarke,Pal. New York, 8, pt. 2, 1893, p. 224.?Grabau, Bull. New York State Mus.,45, 9, 1901, p. 190, fig. 101; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 190, fig.101.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 272, fig. 238.Niagaran: Lockport, etc.. New York (Rochester); Louisville, Kentucky; Tennes-see; Wisconsin.Anastrophia reversa Miller. See Parastrophia reversa.Ana.strophia? scofieldi Winchell and Schuchert. See Parastrophia scofieldi.Anastrophia verneuili Hall. See Anastrophia internascens.Anatina? sinuata Hall. See Ilionia sinuata.Anazyga Davidson. See Zygospira Hall.ANCISTROCERAS Boll. Genotype: A. undulatum Boll.Ancistroceras Boll, Archiv. des Vereins der Freunde der Naturgisch. in Mecklen-burg, 11, 1857, p. 87.?Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 509.?Remele, Zeits. d. d. geol. Gesell., 33, 1881, p. 184; ibid., 34, 1882, p. 123.?Noetling, Jahrb. d. k. Preuss. Geol. Landesans. u. Bergak. fur 1883, 1884, p.122, 130.?Koken, Die Leitfossilien, Leipzig, 1896, p. 50.Ancistroceras? dyeri Hyatt.Ancistroceras? dyeri Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 511.Niagaran (Racine): Chicago, Illinois.Angellum Miller. See Cyrtodonta Billings.ANISOCRINUS Angelin. Genotype: A. interradiatus Angelin.Anisocrinus Angelin, Icon. Crin. Suec, 1878, p. 13.?Wachsmuth and Springer,Proc. Acad. Nat. Sci. Philadelphia, Rev. Pal., 1, 1879, p. 37.?Zittel, Handb.d. Pal., 1, 4, 1879, p. 356.?Bather, Treatise on Zool., 3, 1900, p. 189.?Springer, Jour. Geol., 14, 1906, p. 479.Anisocrinus greenei (Miller and Gurleyj.Lecanocrinus greenei Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 8,1896, p. 52, pi. 3, fig. 28.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 748 fig.,1363.Anisocrinus greenei Springer, Jour. Geol., 14, 1906, p. 480, pi. 6, fig. 11; Mon.Crin. Flex., Smiths. Inst, (in press).Niagaran: Near Louisville, Kentucky (Louisville); Decatur County, Tennessee(Brownsport). 46 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Anisocrinus oswegoensis (Miller and Gurley).Lecanocrinus oswegoensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist.,4, 1894, p. 33, pi. 3, figs. 15-17.Anisocrinus oswegoensis Springer, Jour. Geol., 14, 1906, p. 480, pi. 6, fig. 12; Mon.Grin. Flex., Smiths. Inst, (in press).Niagaran: Oswego, Illinois.ANISOPHYLLUM Edwards and Haime.Genotype: A. agassizi Edwards and Haime.Anisophyllum Edwards and Haime, Mon. Polyp. Foss. Ter. Pal., 1851 (Arch, duMus. d'Hist. Nat., 5), pp. 165, 354.?Pictet, Traite Pal., 2d ed., 4, 1857, p.453.?Milne-Edwards, Hist. Corall., 3, i860, p. 354.?Dybowski, Archiv.Natur. Liv.-Ehst. und Kurl., 5, 1873, pp. 335, 396.?Zittel, Handb. Pal., 1,1879, p. 229.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 370.?Miller,N. A. Geol. Pal., 1889, p. 172.?Sherzer, Amer. Geol., 7, 1891, pp. 278-285.Anisophyllum agassizi Edwards and Haime.Anisophyllum agassizi Edwards and Haime, Mon. Polyp. Foss. Ter. Pal., 1851(Arch, du Mus. d'Hist. Nat., 5), p. 351, pi. 1, figs. 2, 2a.?Pictet, Traite Pal.,2d ed., 4, 1857, p. 453, pi. 107, fig. 19.?Milne-Edwards, Hist. Nat. Corall., 3,1860, p. 355.Niagaran (Brownsport) : Perry County, Tennessee.Anisophyllum? bilamellatum Hall.Anisophyllum? bilamellatum Hall, 35th Rep. New York State Mus. Nat. Hist.,1884, p. 413 (ext. 1882, p. 9).Niagaran (Louisville): Louisville, Kentucky.Anisophyllum trifurcatum Hall.Anisophyllum trifurcatum Hall, 35th Rep. New York State Mus. Nat. Hist.,1884, p. 413 (ext. 1882, p. 9): 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist.,1883, p. 273, pi. 15, figs. 7, 8.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 26, text figs.Niagaran (Louis\'iIle): Louisville, Kentucky.Anisophyllum unilargum Hall.Anisophyllum unilargum Hall, 35th Rep. New York State Mus. Nat. Hist., 1884,p. 4i2 (ext. 1882, p. 8); 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883,p. 272, pi. 15, figs. 5, 6.?Miller, N. A. Geol. Pal., 1889, p. 172, text fig. 134.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 26, text figs.Niagaran (Louisxille): Louisville, Kentucky.Anodontopsis (part) Meek. See Cycloconcha Miller and Ischyrodonta Ulrich.ANODONTOPSIS McCoy. Genotype: A. angustil'rons McCoy.Anodontopsis, McCoy, Ann. Mag. Nat. Hist., 2d ser., 7, 1851, p. 53; Cont. BritishPal., 1854, p. 188; Brit. Rocks and Foss., 1854, p. 270.?Pictet, Traite Pal.,2d ed., 3, 1855, p. 533.?Zittel, Handb. Pal., 2, 1881, p. 64.?Miller, N. A.Geol. Pal., 1889, p. 462.4nodontopsis austrina Clarke.Anodontopsis austrina Clarke, Archiv. Mus. Nac. Rio de Janeiro, 10, author'sEng. ed., 1900, p. 16, pi. 2, fig. 12.Silurian: Rio Trombetas, Brazil.Anodontopsis concinna Whiteaves.Anodontopsis concinna Wliiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 1, 1884,p. 12, pi. 2, fig. 4; pi. 7, figs. 4, 4a; ibid., 3, pt. 2, 1895, p. 67 (loc. occ).Niagaran (Guelph): Gait and Durham, Ontario. BIBLIOGRAPHIC LIST OF. GENERA AND SPECIES. 47Anodoxtopsis milleri Meek. See Cycloconcha milleri.Anodontopsis putilla Clarke.Anodontopsis putilla Clarke, Arcloiv. Mua. Nac. Rio de Janeiro, 10, author's Eng.ed., 1900, p. 16, pi. 2, figs. 10, 11.Silurian: Rio Trombetas, Brazil.Anodontopsis? unionoides Meek. See IsclijTodonta imionoides.Anodontopsis wabashensis Kindle and Breger.Anodontopsis wabashensis Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1904, p. 453, pi. 10, figs. 5-7.Niagaran: Wabash, Indiana.ANOLOTICHIA Ulrich. Genotype: Anolotichia ponderosa Ulrich.Anoloticha Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 381, 473; Geol. Minnesota, 3,1893, p. 326; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 268.?Nickles and Bass-ler, Bull. U. S. Geol. Sur^-., 173, 1900, p. 24.?Grabau and Sliimer, N. A.Index Fossils, 1, 1907, p. 123.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 91;Zittel-Eastman Textb. Pal., 1913, p. 328.Anolotichia impolita (Ulrich).Crepipora impolita Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, p. 77.Anolotichia impolita Ulrich, Geol. Minnesota, 3, 1893, p. 327, pi. 28, figs. 15-20;Zittel's Textb. Pal. (Eng. ed.), 1896, p. 268, fig. 437a^.?Sardeson, Jour.Geol., 9, 1901, p. 13, pi. A, fig. 12.?Grabau and Shimer, N. A. Index Fossils,1, 1907, p. 123, fig. 182a.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 97, figs.32, 33, pi. 7, fig. 11.?Zittel-Eastman Textb. Pal., 1913, p. 328, figs. 465a-c.Black River (Decorah): Minneapolis, etc., Minnesota; Iowa.Ordovician (Kuckers): Near Jewe, Esthonia, Russia.Cotypes and plesiofype.?Gat. Nos. 43276, 57204, U.S.N.M.Anolotichia ponderosa Ulrich.Anoloticliia ponderosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 320, fig. 8c; p. 473,pi. 41, figs. 3-3d; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 268, fig. 437d.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 328, fig. 465d.Richmond (Fernvale): Wilmington, Illinois; Tennessee.Cotype.?Cat. No. 43275, U.S.N.M.ANOMALOCRINUS Meek and Worthen.Genotype: Heterocrinus? incurvus Meek and Worthen.IIeterocrinus(?) subgenus Anomalocrinus Meek and Worthen, Proc. Acad. Nat.Sci. Pliiladelphia, 2d ser., 9, 1865, p. 148.Hybocrinus (Anomalocrinus) Meek and Worthen, Geol. Rep. Illinois, 3, 1868,p. 327._Anomalocrinus Meek, Geol. Surv. Oliio, Pal., 1, 1873, p. 17.?Wachsmuth andSpringer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 295 (Rev. Pal., pt. 1,p. 72); ibid., 1886, pp. 110, 111, 116, 135; ibid., 1890, pp. 378, 380.?Zittel,Handb. Pal., 1, 1879, p. 350.?Miller, Jour. Cincinnati Soc. Nat. Hist., 2,1879, p. Ill; ibid., 5, 1882, p. 38, pi. 5, figs. 3, 3a, 3e.?Miller, N. A. Geol.Pal., 1889, p. 223.?Bather, Ann. Mag. Nat. Hist., 6th ser, 5, 1890, p. 15, fig.11; p. 332, pi. 14, fig. 8; pi. 15, fig. 10; Kongl. Sv. Vet. Akad. Handl., 25, No.2, 1893, p. 20; Treatise on Zool. (Lankester), pt. 3, 1900, p. 146, fig. 58, 4.?Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 152.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 710.?Grabau and Sliimer,N. A. Index Fossils, 2, 1910, p. 501.?Zittel, Grundzuge Pal., 1, 1910, p. 151.?Springer, Zittel-Eastman Textb. Pal., 1913, p. 213. 48 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.ANOMALOCRINUS?Continued.Ataxiacrinus Lyon, Trans. Amer. Pliil. Soc, n. s., 13, 1869, p. 463.?Wachsmuthand Springer, Proc. Acad. Nat. Sci. Pliiladelpliia, 1881, p. 247 (Rev. Pal.,pt. 2, p. 73).Ataxocrinus Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 146.?Zittel,Gmndziige Pal., 1, 1910, p. 151.Anomalocrinus caponiformis (Lyon).Ataxiacrinus caponiformis Lyon, Trans. Amer. Phil. Soc, n. s., 13, 1869, p. 464,pi. 27, figs. 1-3.Anomalocrinus caponiformis Miller, Jovir. Cincinnati Soc. Nat. Hist., 2, 1879 p.109, pi. 9, figs. 4-4a.Maysville (Corryville): Cincinnati, Ohio, and vicinity.Anomalocrinus incurvus (Meek and Worthen).Heterocrinus (Anomalocrinus) incurvus. Meek and Worthen, Proc. Acad. Nat.Sci. Pliiladelphia, 1865, p. 148.Hybocrinus? (Anomalocrinus) incurvus Meek and Worthen, Geol. Surv. Illinois,3, 1868, p. 327, text fig., pi. 4, figs. 3a, b.Anomalocrinus incurvus Meek and Worthen, Geol. Surv. Ohio, 1, pt. 2, 1873, p.17, pi. 2, figs. 6a-f.?Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 112;N. A. Geol. Pal., 1889, p. 224, fig. 246.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 716, pi. 3, figs, l-lc?Grabau and Shimer, N. A,Index Fossils, 2, 1910, p. 501, fig. 1813.Maysville (Fairmount): Cincinnati, Ohio, and vicinity.Anomalocystis Haeckel. See Anomalocystites Hall.ANOMALOCTSTITES Hall. Genotype: A. comutus Hall.Anomalocystites Hall, Amer. Join*. Sci. Arts, 2d ser., 25, 1858, p. 279; Pal. New-York, 3, 1859, p. 132.?Meek (part), Geol. Surv. Ohio, Pal.,1, 1873, p. 43.?Woodward, Geol. Mag., dec. 2, 7, 1880, pp. 193, 199.?Barrande, Syst. Sil.Center Boheme, 7, pt. 1, 1887, p. 89.?Miller, N. A. Geol. Pal., 1889, p. 224.?Jaekel, Zeits. d. d. geol.Ges., 52, 1900, p. 668.?Zittel-Eastman Textb. Pal.,1, 1900, p. 186.?Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 51.?Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 204.?Zittel, GrundzugePal., 1, 1910, p. 182.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p.150.Ateleocystites Woodward (part), Geol. Mag., dec. 2, 7, 1880, p. 193.Anomalocystis Haeckel, Amphoroideen und Cystoideen, 1896, p. 40.Anomalocystites (Ateleocystites) balanoides Meek. See Ateleocystites bal-anoides.Anomalocystites cornutus Hall.Anomalocystites cornutus Hall, Pal. New York, 3, 1859, p. 133, pi. 7A, figs. 5-7.?Woodward, Geol. Mag., dec. 2, 7, 1880, p. 193, pi. 6, figs. 4, 5.?Schuchert,Smiths. Misc. Coll., 47, pt. 2, 1904, p. 206, pi. 40, figs, 4, 5.Anomalocystis cornuta Haeckel, Amphoroideen und Cystoideen, 1896, p. 41, pi.2, figs. 8, 9.Helderbergian (Manlius transition beds or Coeymans): Litchfield, HerkimerCounty, New York.Plesiotypes.?Gat. Nos. 35078, 35079, U.S.N.M.Anomalocystites huxleyi Miller. See AteleocyBtites huxleyi. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 49ANOMALODONTA Miller. Genotype: A. gigantea Miller.Anomalodonta, Miller, Cincinnati Quart. Jo\ir. Sci., 1, 1874, p. 16; 2, 1875, p. 280. ? White, Amer. Jour. Sci. Arts, 3d ser., 8, 1874, pp. 218, 219.?Zittel, Ilandb.Pal., 2, 1881, p. 36.?Miller, N. A. Geol. Pal., 1889, p. 462.?Ulrich, Geol.Surv. Ohio, 7, 1893, p. 636.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 978.?Grabau and Shimer, N. A. Index Fossils. 1 1909.p. 430.Anomalodonta alata (Meek).Ambonychia (Megaptera) alata Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872,p. 319; Geol. Surv. Ohio, Pal., 1, 1873, p. 131, pi. 11, fig. 9; pi. 12, fig. 10.Megaptera alata Wliite, Cincinnati Quart. Jour. Sci., 1, 1874, p. 327.Anomalodonta alata Miller, Cincinnati Quart. Jour. Sci., 1874, p. 16, pp. 223,328.?Uh-ich, Geol. Surv. Ohio, 7, 1893, p. 638, pi. 46, fig. 1.?Grabau andShimer, N. A. Index Fossils, 1, 1909, p. 431.Richmond (Ai'nheim and Waynesville): Morrow, Clarksville, etc., Ohio; A'er-sailles, etc., Indiana.Plesiotype.?Cat. No. 46087, U.S.N.M.Anomalodonta casei (Meek and Worthen).Ambonychia (Megaptera) Casei Meek and Worthen, Proc. Chicago Acad. Sci., 1,1866, p. 22.?Meek, Geol. Surv. Ohio, Pal.,1, 1873, p. 133, pi. 11, fig. 8.?\^Tiite, 2d Ann. Rep. Indiana Dep. Stat. Geol., 1880, p. 491, pi. 1, figs. 1, 2.Megaptera Casei Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 337, pi. 4,fig. 9a, b.Anomalodonta casei Miller, Cincinnati Quart. Jour. Sci., 1, 1874, pj). 15, 16, p. 224.Richmond (WTiitewater): Richmond, Indiana.Anomalodonta costata (Meek).Ambonychia costa ta James, Cat. Low. Sil. Fossils Cincinnati Group, 1871, p. 13(not described).?Meek, Geol. Siu-v. Ohio, Pal., 1, 1873, p. 130, pi. 12, figs.5a, b, c?Miller, Cincinnati Quart. Jour. Sci., 1, p. 15.Anomalodonta costata Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 987, pi. 62, figs. 6-6a.Richmond (Arnheim and Waynesville): Clarksville, etc., Oliio.Anomalodonta gigantea Miller.Anomalodonta gigantea Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 17, figs.7, 8, 9; also p. 327; N. A. Geol. Pal., 1889, p. 462, figs. 776, 777; p. 463, fig.778.?Uh-ich, Geol. Surv, Ohio, 7, 1895, p. 637, pi. 50, figs. 1 to 4.?Cumings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 968, pi. 43, figs. 1-lb.Richmond (Arnheim-Whitewater): Versailles, etc., southeastern Indiana; Oliio.Plesiotype?Cat. No. 46088, U.S.N.M.Anomalodonta plicata Ulrich.Anomalodonta plicata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 638, pi. 46, figs. 2, 3.Maysville (Corryville): Cincinnati, Ohio.Holotype.?Cat. No. 46089, U.S.N.M.ANOMALOIDES Ulrich. Genotype: A. reticulatus Ulrich.Anomaloides Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 92.?James,J. F., ibid., 8, 1885, pp. 165, 166.?Ulrich, Amer. Geol., 1, 1888, p. 324.Anomalospongia Ulrich, Geol. Minnesota, 3, pt. 1, 1895, pp. 68-69 (ext. 1893).84243?~Bull. 92?15 4 50 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Anomaloides reticulatus UlrichAnomaloides reticulatus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 92,pi. 4, figs. 6, 6a-b.Anomalospongia reticulata Ulrich, Geol. Minnesota, 3, pt. 1, 1895, p. 71, fig. 1,pi. F, figs. 13-15 (ext. 1893).Receptaciilites reticulatus James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1885,p. 166; 9, 1886, p. 249; 14, 1891, p. 62.Maysville (Mt. Hope): Covington, Kentucky.Cotypes?Cat. No. 46546, U.S.N.M.Anomalospongia Ulrich. See Anomaloides Ulrich,Anomia biloba Linnaeus. See Bilobites bilobus.Anomia reticularis Linnaeus. See Atrypa reticularis.Anomites exporrectus Wahlenberg. See Cyrtia exporrecta.Anomites lenticularis Wahlenberg. See Eoorthis (Orusia) lenticularis.Anomites transversalis Wahlenberg. See Plectambonites transversalis.ANOMOCARE Angelin. Genotype: A. laeve Angelin.Anomocare Angelin, Pal. Scandinavica, 3d ed., 1878, p. 24.?Zittel, Handb. Pal.,2, 1885, p. 601.?Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 60.?Koken, Die LeitfossiUen, Leipzig, 1896, p. 22.?Walcott, Smiths. Misc. Coll.,57, No. 4, 1911, p. 87; Research in China, 3, Carnegie Institution, 1913, p.187 (figures genotype).Anomocare parvula Weller.Anomocare parvula Weller, Geol. Surv. NeAv Jersey, Pal., 3, 1903, p. 120, pi. 3,fig. 12.Upper Cambrian or Ozarkian (Kittatinny): Newton, New Jersey.Anomocake spinigek Matthew. See Acantholenus spiniger.Anomocare stenotoides (Matthew).Leptoplastus stenotoides Matthew, Canadian Rec. Sci., 3, 1889, p. 486, fig. 2.Anomocare stenotoides Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p.61, pi. 13, fig. 3 a-d; Bull. Nat. Hist. Soc. New Brunswick, 16, 1898, p. 42;Trans. Royal Soc. Canada, 2d ser., 4, sec. 4, 1898, p. 139, pi. 2, figs. 5 a-i.Canadian (Bretonian?Div. C 3b): Long Island, Kennebecasis River, NewBrunswick.ANOMOCARELLA Walcott. Genotype: A. chinensis Walcott.Anomocarella Walcott, Proc. U. S. Nat. Mus., 29, 1905, p. 54; Smiths. Misc. Coll.,57, 1911, p. 91; Research in China, 3, Carnegie Inst., 1913, p. 195.Anomocarella belli (Billings).Dikelocephalus Belli Billings, Canadian Nat. Geol., 5, 1860, p. 311, fig. 7; Geol.Canada, Geol. Surv. Canada, 1863, p. 236, fig. 260; Pal. Foss., 1, Geol. Surv.Canada, 1865, p. 403, fig. 378.Dicellocephalus Belli Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p.11, footnote.Anomocarella belli Walcott, Smiths. Misc. Coll., 57, 1914, p. 349 (gen. ref.).Ozarkian? (Levis?erratic): Point Levis, Quebec. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 51Anomocarella? oweni (Billings).Dikelocephalus Oweni Billings, Canadian Nat. Geol. 5, 1860, p. 310, fig. 8; Geol.Canada, Geol. Surv. Canada, 1863, p. 236, fig. 259; Pal. Foss., 1, Geol. Surv.Canada, 1865, p. 402, fig. 379.Dicellocephalus Oweni Matthew, Trans. Royal See. Canada, 10, sec. 4, 1893,p. 11, footnote.Anomocarella? oweni Walcott, Smiths. Misc. Coll., 57, 1914, p. 251 (gen. ref.).Ozarkian? (Levis?erratic): Point Levis, Quebec.Anomocarella? planifrons (Billings).Dikelocephalus planifrons Billings, Canadian Nat. Geol., 5, 1860, p. 309, fig. 6;Geol. Canada, Geol. Surv. Canada, 1863, p. 236, fig. 256; Pal. Foss., 1, Geol.Surv. Canada, 1865, p. 401, fig. 377.Dicellocephalus planifrons Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893,p. 11, footnote.Anomocarella? planifrons Walcott, Smiths. Misc. Coll., 57, 1914, p. 352 (gen. ref.).Ozarkian? (Levis?erratic): Point Levis, Quebec.ANOMOCLONELLA Rauff. Genotype: A. zitteli Rauff.Anomoclonella Rauff, Palseontographica, 41, 1895, p. 226.Anoinoclonella zltteli (Rauff).Anomoclonella Zitteli Rauff, Palseontographica, 40, 1894, pi. 8, figs. 1-4; 41, 1895,pp. 226-242, figs. 78-83.Niagaran (Brownsport) : Decatur County, Tennessee.Anoplotheca (part) of authors. See Coelospira Hall.ANOPTERA Ulfich. Genotype: A. miseneri Ulrich.Anoptera Ulrich, Geol. Surv. Ohio, 7, 1893, p. 649.Auoptera miseneri Ulrich.Anoptera miseneri Ulrich, Geol. Surv. Ohio, 7, 1893, p. 650, pi. 50, figs. 5-9.Richmond: Clarksville, Oliio (Waynesville); Richmond, Indiana (Whitewater).Coiypes.?Cat. Nos. 46090, 46091, U.S.N.M.ANORTHASTER Schuchert. Genotype: Palseastermiamiensis MillerAnorthaster Schuchert in Freeh, Cat. F'oss., 1, Anim., pt. 3, 1914, p. 11 (nom.nud.); Bull. U. S. Nat. Mus., 88, 1915, p. 125.Anorthaster miamiensis (Miller).Paloeaster miamiensis Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 143, pi.4, fig. 3.?James, Ibid. 18, 1895, p. 129.Anorthaster miamiensis Schuchert, in Freeh, Cat. Foss., 1, Anim., pt. 3, 1914, p.11; Bull. U. S. Nat. Mus., 88, 1915, p. 127, pi. 13, fig. 4; pi. 20, fig. 1.Richmond (Waynesville or Liberty): Waynesville, Ohio.Hololype.?Cat. No. 40880, U.S.N.M.ANTHASPIDELLA Ulrich and Everett.Genotype: A. mammulata Ulrich and Everett.Anthaspidella Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 256.?Miller,N. A. Geol. Pal., 1889, p. 153.Anthaspidella fenestrata Ulrich and Everett.Anthaspidella fenestrata, Ulrich and Everett, Geol. Surv. Illinois, 1890, p. 264,pi. 2, fig. 1.Black River (Platteville) : Near Dixon, Illinois. 52 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Anthaspidella flrma Ulrich and Everett.Anthaspidella firma Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 263, pi.2, figs. 3, 3a.Black River (Platteville): Near Dixon, Illinois.Anthaspidella florifera Ulrich and Everett.Anthaspidella florifera Ulrich and Everett, Geol. SiU'V. Illinois, 8, 1890, p. 259,pi. 1, fig. 2; pi. 4, fig. 2.Black River (Platteville) : Near Dixon, Illinois.Anthaspidella grandis Ulrich and Everett.Anthaspidella grandis Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 262,pl.2, figs. 2, 2a.Black River (Platteville): Near Dixon, Illinois.Anthaspidella? magniflca Ulrich and Everett.Anthaspidella? magnifica Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 265,pi. 8, figs. 2, 2a-c.Black River (Platteville): Near Dixon, Illinois.Anthaspidella mammixlata Ulrich and Everett.Anthaspidella mammulata Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p.258, pi. 1, figs. 1, la-d.Black River (Platteville): Near Dixon, Illinois.Anthaspidella obliqua Ulrich and Everett.Anthaspidella obliqua Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 265,pi. 4, figs. 1, la.Black River (Platteville): Near Dixon, Illinois.Anthaspidella parvistellata Ulrich and Everett.Anthaspidella parvistellata Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p.260, pi. 1, fig. 3.Black River (Platteville): Near Dixon, Illinois.Anthaspidella scutula Ulrich and Everett.Anthaspidella scutula Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 261,pi. 3, fig. 1, la.Black River (Platteville): Near Dixon, Illinois.Anthes Goldfuss. See Peltura Milne-Edwards.Anthocrinus Miillcr. See Cyathocrinus Miller.Anthocystis Haeckel. See Callocystites Hall.Anthocystis Halliana Haeckel. See Callocystites jewetti.Anthophyllum denticulatus Goldfuss. See Zaphrentis denticulatus.Anthophyxlum expansum Owen. See Ptychophylliun expansum.Antirhynchonella Quenstedt. See Conchidium Linnaeus.APARCHITES Jones. Genotype: A. whitoavesi Jones.Aparchites Jones, Ann. Mag. Nat. Hist., 6th ser., 3, 1889, p. 384.?Miller, N. A.Geol. Pal., 1889, p. 529.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 643;Zittel-Eastman Textb. Pal., 1, 1900, p. 644.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 343.?Bassler, Zittel-Eastman Textb. Pal., 2d. ed.,1913, p. 737. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 53Aparchites arrectus Ulrich.Aparchites arrectus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 646, pi. 43, figs.35, 36.Black River (Decorah): St. Paul, Minnesota,Eolotype.?Q&t. No. 41836, U.S.N.M.Aparchites billingsi (Jones).Leperditia Billingsi Jones. Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 345, pi. 20,fig. 9.Aparchites billingsii Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897,p. 231.Silurian or Devonian: Lake Winnepegosis, Canada.Aparchites chatfieldensis Ulrich.Aparchites chatfieldensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 646, pi. 43,figs. 37, 38.Black River (Decorah): Chatfield, Minnesota.Holofype.?C&t. No. 41829 U.S.N.M.Aparchites concinnus (Jones).Cytheropsis concinna Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 249, pi. 10,figs. 3, 4; Geol. Surv. Canada, dec. 3, 1858, p. 99.Primitia concinna Jones and Holl, Ann. Mag. Nat. Hist., 3d ser., 16, 1865, p. 424.Aparchites concinnus Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891,p:99.Black River (Leray): Pauquettes Rapids, Allumette Island, Ottawa River,Canada.Aparchites ellipticus Ulrich.Aparchites ellipticus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 644, pi. 43, figa.15-17.Black River (Decorah): Minneapolis, Minnesota.Cotypes.?Cat. No. 41832 U.S.N.M.Aparchites flmbriatus (Ulrich).Leperditia fimbriata Ulrich, Amer. Geol., 10, 1892, p. 268, pi. 9, figs. 34-36.Aparchites fimbriatus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 645, pi. 45, figs.10-12.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 343, fig. 1657b.Richmond (Maquoketa) : Spring Valley, Minnesota.Eolotype.?Cat. No. 41834, U.S.N.M.Aparchites gordoni Ulrich and Bassler.Aparchites gordoni Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913,p. 515, pi. 95, figs. 1-3.Helderbergian (Keyser): Cumberland, Maryland.Eolotype.?Cat. No. 53283, U.S.N.M.Aparchites granilabiatus (Ulrich).Leperditia granilabiata Ulrich, Amer. Geol., 10, 1892, p. 267, pi. 9, figs. 31-33.Aparchites granilabiatus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 644, pi. 45,figs. 21-23.Black River (Decorah): St. Paul, Minnesota.Eolotype.?Cat. No. 41828, U.S.N.M.Aparchites granilabiatus neglectus Ulrich.Aparchites granilabiatus neglectus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 645.Black River (Decorah): Minneapolis, Minnesota.Cotypes.?Cat. No. 41835, U.S.N.M. 64 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Aparchltes mlllepunctatus (Ulrich).Leperditia millepunctata Ulrich, Amer. Geol., 10, 1892, p. 268, pi. 9, fig8. 37-39.Aparchites millepunctatus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 645, pi. 45,figs. 16-18.Black River (Decorah) : Fountain, Minneeota.Eolotype.?C&t. No. 41837, U.S.N.M.Aparchites minutissimus (Hall).Leperditia (Isochilina) minutissima Hall, 24th Rep. New York State Cab. Nat.Hist., 1872, p. 231, pi. 8, fig. 13 (adv. sheet 1871, p. 7).?Hall and Whitfield,Geol. Surv. Ohio, Pal., 2, 1875, p. 102, pi. 4, fig. 4.Leperditia minutissima Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 122.Aparchites minutissimus Ulrich, Geol. Surv. Canada, Cont. Micro-Pal., pt. 2,1889, p. 49, pi. 9, fig. 5.?Whiteaves, ibid., Pal. Foss., 3, pt. 2, 1895, p. 126(loc. occ).Eden-Richmond: Cincinnati, Ohio, and vicinity; Stony Mountain, Manitoba,Anticosti, etc.Aparchites minutissimus robustus Ruedemann.Aparchites minutissimus var. robustus Ruedemann, Bull. New York State Mus.,49, 1901, p. 74, pi. 7, figs. 6-11.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.Aparchites minutissimus trentonensls Ulrich.Aparchites minutissimus var. trentonensls Ulrich, Geol. Minnesota, 3, pt. 2, 1894,p. 646, pi. 43, figs. 18-20.Black River (Decorah) and Trenton (Prosser): Fountain, Cannon Falls, etc.,Minnesota.Cotypes?Cat. Nos. 41302, 41303, U.S.N.M.Aparchites mundulus Jones.Aparchites mundulus Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891,p. 62, pi. 10, figs. 12a, b.Trenton: Falls of Lorette, Quebec.Aparchites oblongus Ulrich.Aparchites oblongus Ulrich, Joiu-. Cincinnati Soc. Nat. Hist., 13, 1890, p. 137, pi.10, figs. lOa-lOc.Richmond (Arnheim): Middletown, Ohio.Eolotype.?C&t. No. 41811, U.S.N.M.Aparchites parvulus Jones.Aparchites parvulus Jones, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897, p. 2.30,pi. 22, figs. 4a-4c.Black River or Richmond: Little Black Island, Lake Winnipeg, Canada.Aparchites tyrrelll Jones.Aparchites TyrrelliiJones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 62,pi. 13, figs. 14a-c.?Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897,p. 242 (loc. occ).Black River or Richmond: Great Black Island, Like Winnipeg, Canada.Aparchites unicornis Ulrich. See Primitiella imicomis.Aparchites whiteavesl Jones.Aparchites "^Tiiteavesi Jones, Ann. Mag. Nat. Hist., 6th ser., 3, 1889, p. 384, figs.5, 6, pi. 17, fig. 10.?Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897,p. 230.Black River or Richmond: Lower Fort Garry, St. Andrew, Manitoba. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 55APATOKEPHALUS Brogger. Genotype: Trilobites serratus Boeck.Apatokephalus Brogger, Nyt. Mag. f. Naturvid, 36, 1897, p. i84.Tramoria Reed, Quart. Jour. Geol. Soc. London, 55, 1899, p. 758, pi. 49, figs. 14-16;Geol. Mag., dec. 4, 7, 1900, p. 46.Apatokephalus corax (Billings).Dikelocephalus? corax Billings, Pal. Foss., 1, Geol. Surv. Canada, 18G5, p. 334,fig. 322a, b.?Matthew, Trans. Royal Soc. Canada, 10, see. 4, 1893, p. 11, foot-note.Ozarkian ? (Levis?erratic): Point Levis, Quebec.Apatokephalus finalis (Walcott).Dicellocephalus finalis Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 89, pi. 12,figs. 12, 12a, 22.?Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11,footnote.Apatokephalus finalis Brogger, Nyt. Mag. f. Naturvid., 1897, p. 175, fig. 6a, p. 184.Upper Pogonip: Ridge east of Hamburg Ridge, Eureka District, Nevada.Cotypes.?Cat. No. 24563, U.S.N.M.Apatokephalus magnificus Brogger. See Hungaia magnifica.Apatokephalus schlotheimi Billings. See Remopleurides? schlotheimi.APHETOCERAS Hyatt. Genotype: A. americanum Hyatt.Aphetoceras Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 447.?Miller, N. A. Geol.Pal., 2d App., 1897, p. 771.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 65.Aphetoceras americanum Hyatt.Aphetoceras americanum Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 447, pi. 6,figs. 5-8.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 65.Canadian: Port au Choix, Newfoundland.Aphetoceras attenuatum Hyatt.Lituites farnsworthi Billings (part), Geol. Surv. Canada, Pal. Foss., 1, 1861, p. 21.Aphetoceras attenuatum Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 449.?Ruede-mann, Bull. New York State Mus., 90, Pal., 14, 1906, p. 475.Canadian (Beekmantown) : Phillipsburg, Missisquoi County, Quebec.Aphetoceras boreale Hyatt.Aphetoceras boreale Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 448, pi. 5, figs.15-17.Canadian: Schooner Island, Newfoundland.Aphetoceras complanatum (Shumard).Lituites complanata Shumard, Trans. Acad. Sci. St. Louis, 2, 1863, p. 107. ? Keyes, Missouri Geol. Surv., 5, 1895, p. 225.Aphetoceras complanatum Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen.ref.).Canadian (Yellville): Ozark County, Missouri.Aphetoceras farnsworthi (Billings).Lituites Farnsworthi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 21, fig.24 (adv. sheets, 1861); Geol. Vermont, 2, 1862, p. 958, fig. 364; Rep. Econ.Geol., etc., Vermont, 1862, p. 230, fig. 364; Geol. Canada, Geol. Surv. Canada,1863, p. 277, fig. 283.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.354, fig. 56 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Aphetoceras farnsworthi?Continued.Aphetoceras farnsworthi Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 448.?Ruede-mann, Bull. New York State Mus., 90, Pal., 14, 1906, p. 473, fig. 24.?Grabauand Shimer, N. A. Index Fossils, 2, 1910, p. 65, fig. 1273.Canadian (Beekmantown) : Phillipsbm'g, Missisquoi County, Quebec.APHYLLOSTYLUS Whiteaves. Genotype: A. gracilis "WTiiteaves.Aphyllostylus Whiteaves, Ottowa Naturalist, 18, 1904, p. 113.Aphyllostylus gracilis Uliiteaves.Aphyllostylus gracilis Whiteaves, Ottawa Nat., 18, 1904, p. 114; Geol. Surv.Canada, Pal. Foss., 3, pt. 4, 1906, p. 278, pi. 24, figs. 1, la.Niagaran: Stonewall, Manitoba.Apioceras Saemann. See Poterioceras McCoy.Apiockinite(?) Anthony. See Glyptocrinus decadactylus.Apiocystis Haeckel. See Apiocystites Forbes.Apiocystites Hall. See Hallicystis Jaekel.Apiocystites Jaekel. See Lepocrinites Conrad.APIOCYSTITES Forbes. Genotype: A. pentrematoides Forbes.Apiocystites Forbes, Mem. Geol. Surv. Great Britain, 2, pt. 2, 1848, pp. 501,503.?Hall, Pal. New York, 2, 1852, p. 242.?Muller, Ann. Mag. Nat. Hist.,2d ser., 13, 1854, p. 248.?Pictet, Traits de Pal., 2d ed., 4, 1857, p. 298.?Chapman, Canadian Jour., n. s., 2, 1857, p. 303.?Hall, Pal. New York, 3,1861, pp. 126, 151.?Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 354.?Miller, N. A. Geol. Pal., 1889, p. 224.?Jaekel, Stammesg. Pelmat., 1, The-coidea u. Cystoidea, Berlin, 1899, p. 279 (part).?Schuchert, Smiths. Misc.Coll., 47, pt. 2, 1904, p. 210.?Springer, Zittel-Eastman Textb. Pal., 2d ed.,1913, p. 154.Apiocystis Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 132.?Bather,Treatise on Zool. (Lankester), pt. 3, 1900, p. 61.?Zittel, Grundzuge Pal., 1,1910, p. 187.Lepadocrinus Bather (part). Treatise on Zool. (Lankester), pt. 3, 1900, p. 61.Apiocystites Canadensis Billings. See Callocystites canadensis.Apiocystites elegans (Hall).Apiocystites elegans Hall, Pal. New York, 2, 1852, p. 243, pi. 51, figs. 1-17.?Jaekel, Stammesg. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 282. ? Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 212, pi. 34, figs. 4, 5.Apiocystis elegans Haeckel, Amphorideen u. Cystoideen, 1896, pi. 3, figs. 4-9.Clinton (Rochester): Lockport, New York; Grimsby, Ontario.ApiocYSTriES GEBHARDii Jaekel. See Lepocrinites gebhardi.Apiocystites huronensis Billings. See Brockocystis hiuonensis.Apiocystites imago Hall. See Hallicystis imago.Apiocystites tecumseth Billings. See Brockocystis tecumseth.Aplocrinus D'Orbigny. See Haplocrinus Steininger.APSIDOCERAS Hyatt. Genotype: Gyroceras (Lituites) magnificum Billings.Apsidoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 289.?Miller, N, A.Geol. Pal., 1st App., 1892, p. 695. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 57Apsidoceras insigne Whiteaves. See Litoceras insigne.Apsldoceras magniflcum (Billings).Gyroceras (Lituites) magnificuia Billings, Geol. Surv. Canada, Rep. Progr. for1853-56, 1857, p. 307.Lituites? magniflcum Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 23 (loc. ref.).Apsidoceras magniflcum Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 289.Richmond (English Head and Charleton) : Southwest End Lighthouse, Anticosti.ARABELLITES Hinde. Genotype: A. hamatus Hinde.Arabellites Hinde, Quart. Jour. Geol. Soc. London, 25, 1879, p. 377.?Miller,N. A. Geol. Pal., 1889, p. 517.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 240.Arabellites aciculatus James.Arabellites aciculatus James, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 148,pi. 7, fig. E.Maysville (Fairmount): Near Loveland, Ohio.Arabellites ascialis Hinde.Arabellites ascialis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi.18, fig. 21,Cincinnatian (Pulaski): Toronto, Ontario.Arabellites cervicornis Hinde.Arabellites cervicornis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379,pi. 19, figs. 8, 12.Cincinnatian (Pulaski) : Toronto, Ontario.Arabellites cornutus Hinde.Arabellites cornutus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 377, pi.18, figs. 13-15.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites crenulatus Hinde.Arabellites crenulatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379,pi. 19, fig. 9.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites crlstatus Hinde.Arabellites cristatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378,pi. 19, fig. 7.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig.1528g.Eunicites cristatus Miller, N. A. Geol. Pal., 1889, p. .518 (gen. ref.).Cincinnatian (Pulaski): Toronto, Ontario.Arabellites cuspidatus Hinde.Arabellites cuspidatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378,pi. 18, fig. 19.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig.1527a.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites elegans Hinde.Arabellites elegans Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 382, pi.20, figs. 5, 7.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig.1529b.Upper Medinan (Cataract): Toronto, Ontario. 58 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Arabellites gibbosus Hinde.Arabellites gibboBus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi.18, fig. 21.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig.1527c.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites hamatus Hinde.Arabellites hamatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 377, pi.18, fig. 12.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 240, fig.1526d.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites hindei James.ArabelUtes hindei James, Joxir. Cincinnati Soc. Nat. Hist., 7, 1884, p. 149, pi. 7,fig. D.Mays^'ille (Fairmount): Near Loveland, Ohio.Arabellites lunatus Hinde.Arabellites lunatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi.19, fig. 4-6.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig.1528d^Cincinnatian (Pulaski): Toronto, Ontario.Arabellites? obliquus Hinde.Arabellites? obliquus Hinde, Quart. Jour. Geol. Soc. London, 1879, p. 379, pi.19, fig. 15.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites ovalis Hinde.Arabellites ovalis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 378, pi. 18,fig. 16.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites peetinatus Hinde.Arabellites peetinatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379,pi. 19, fig. 11.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites procursus Foerste.Arabellites procursus Foerste, Amer. Geologist. 2, 1888, p. 417, fig. 3; Geol.Surv. Ohio, Pal., 7, 1893, p. 517, fig. 3.Kichmond (Elkhom): Todda Fork, near Wilmington, Ohio.Arabellites quadratus Hinde.Arabellites quadratus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379,pi. 19, fig. 14.Cincinnatian (Pulaski): Toronto, Ontario.Arabellites rectus Hinde.Arabellites rectus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879. p. 378, pi. 18,fig. 18.Cincinnatian (Pulaski) : Toronto, Ontario.Arabellites scutellatus Hinde.ArabelUtes scutellatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 379,pi. 19, fig. 16.Cincinnatian (Pulaski): Toronto, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 59Arabellites similis Hinde.Arabellites similis Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 382, pi.20, fig. 8.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig.1529d.Upper Medinan (Cataract): Toronto, Ontario.Arachnocrinus pisiformis Meek and Worthen. See Lecanocrinus pisiformis.Arachnophyllum Dana. See Strombodea Schweigger.ARCA Linnseus. Not a Paleozoic genus.Area?? brownl Salter.Area? Brownii Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. G9, pi. 4, figs.19, 20.Silurian: West slope of Mt. lUampu, Bolivia.Area?? gracilis Hoek.Area gracilis Hoek, Neues Jahrb., Min., Geol., Pal., 34, 1912, pi. 8, fig. 17.Ordovician: Totoropampa, Bolivia.Arca poststriata D'Orbigny. See Lyrodesma poststriatum.ARCHiEOCRINUS Wachsmuth and Springer.Genotype: Glyptocrinus lacunosus Billings.Archaeocrinus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881,p. 363 (Rev. Pal., pt. 2, p. 189); ibid., 1885, p. 318; ibid., 1890, p. 366.?Miller,Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 217.?Carpenter, Phil. Trans.Roy. Soc. London, 174, 1884, pp. 929, 930.?Miller, N. A. Geol. Pal., 1889,p. 225.?Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897,p. 253.?Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 200, fig. 125.?Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 145.?W^eller, Bull.Chicago Acad. Nat. Hist. Surv., 4, pt. 1, 1900, p. 88, fig. 41.?Zittel, Grund-zuge Pal., 1, 1910, p. 161.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 550.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 188.Arch^ocrinus asperatus Wachsmuth and Springer. See Deocrinus asperatus.ArcH/EOCRINus asperatus Miller and Gurley. See Diabolocrinus asperatus.Archaeocriniis? deliculatiis Hudson.Archseocrinus ? deliculatus Hudson, Bull. New York State Mus., 107, 1907, p, 129,fig. 8.Chazyan (Valcoui-): Valcoiu: Island, Lake Champlain, New York.Archaeocrinus depressus Weller.Archseocrinus depressus Weller, Bull. Chicago Acad. Sci. Nat. Hist. Surv., 4, pt. 1,1900, p. 89, pi. 3, figs. 9-10.Niagaran (Racine): Bridgeport, Cicero, and Hawthorne, Illinois.Archaeocrinus desideratus W. R. Billings.Archaeocrinus desideratus W. R. Billings, Trans. Ottawa Field Nat. Club, 2, 1885,p. 249, pi. fig.?Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard,20, 1897, p. 257, pi. 10, figs. 4a, b.?Bather, Treatise on Zcol., pt. 3, Echino-derma, London, 1900, p. 200, fig. 125.Trenton (Curdsville) : Ottawa, Ontario.Archaeocrinus knoxensis Miller and Gurley.Archaeocrinus knoxensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 6,1895, p. 34, pi. 3, fig. 12-15.Chazyan (Ottosee): Knox County, Tennessee. 60 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Archseocrinus lacunosus (Billings).Glyptocrinus lacunosus Billings, Geol. Surv. Canada, Rep. Progress for 1853-1856,1857, p. 2G1; Geol. Surv. Canada, dec. 4, 1859, p. 61, pi. 8, figs. 3a-3e.Archseocrinus lacunosus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool., Har-vard, 20, 1897, p. 255, pi. 10, fig. 1.?Springer, Mem. Geol. Surv. Canada,15P, 1911, p. 11 (loc. occ).Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Archaeocrinus marginatus (Billings).Glyptocrinus marginatus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856,1857, p. 260; Geol. Surv. Canada, dec. 4, 1859, p. 59, pi. 9, fig. la.Archaeocrinus marginatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool., Har-vard, 20, 1897, pp. 254, 275, pi. 20, fig. 2Trenton (Curdsville): Ottawa, Ontario.Archaeocrinus microbasilis (Billings).Thysanocrinus (Rhodocrinus) microbasilis Billings, Geol. Surv. Canada, Rep.Progr. for 1853-1856, 1857, p. 264.Rhodocrinus microbasilis Billings, Geol. Surv. Canada, dec. 4, 1859, p. 63, pi. 6,fig. 2.Archaeocrinus microbasilis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190); Mem. Mus. Comp. Zool. Har-vard, 20, 1897, p. 256, pi. 10, fig. 2a-c.?Springer, Mem. Geol. Surv. Canada,15P, 1911, p. 11 (loc. occ).Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Archaeocrinus parvus Miller and Gurley.Archaeocrinus parvus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5,1894, p. 21, pi. 2, figs. 26-28.?Miller, N. A. Geol. Pal., 1897, 2d App., p. 734,fig. 1298.Chazyan (Ottosee): Kaox County, Tennessee.Archaeocrinus peculiaris Miller and Gurley.Archaeocrinus peculiaris Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5,]894, p. 17, pi. 2, figs. 1-3.?Miller, N. A. Geol. Pal., 1897, 2d App., p. 734,figs. 1299-1300.Chazyan (Ottosee): Knox County, Tennessee.Archaeocrinus pyriformis (Billings),Thysanocrinus (Rhodocrinus) pyriformis Billings, Geol. Surv. Canada, Rep.Progr. for 1853-1856, 1857, p. 262.Rhodocrinus pyriformis BilUngs, Geol. Siirv. Canada, dec. 4, 1859, p. 61, pi. 6, figs,la-d.Archaeocrinus pyriformis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1881, p. 364 (Rev. Pal., pt. 2, p. 190) (gen. ref.); Mem. Mus. Comp.Zool., Harvard, 20, 1897, p. 255, pi. 10, fig. 3a, b.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 550.?Springer, Mem. Geol. Surv. Canada, 15P,1911, p. 11.Trenton (Curdsville): Ottawa, Montreal, and Kirkfield, Canada.Arch^ocrinus? ramulosus Wachsmuth and Springer. See Glyptocrinus ramulosus.Archaeocrinus sculptus Wachsmuth and Springer. See Diaboloainus vesperalis.ArchvEOcyathus Minganensis Billtags. See Archseoscyphia minganensis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 61ARCHiEOSCTPHIA Hinde. Genotype: Archaeocyathus minganensis Billings.Archaeocyathus (part) Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 354.Archseoscyphia Hinde, Quart. Jour. Geol. Soc. London, 45, 1894, p. 142.?Rauff,Palseontographica, 40, 1894, p. 238.Archaeoscyphia minganensis (Billings).Petraia minganensis Billings, Canadian Nat. Geol., 4, 1859, -p. 346.Arclia?ocyathu8 Minganensis Billings, New sp. L. Sil. Foss., 1861, p. 5; Pal. Foss.1, Geol. Surv. Canada, 1865, p. 354, figs. 342a, b, 343a, 344; Geol. Vermont, 2,1861, p. 945; Rep. Econ. Geol., etc., Vermont, 1862, p. 217.?Nicholson,Man. Pal., 1872, p. 68, fig. 15.?Dawson, Life's Dawn on Earth, 1875, p. 152,fig. 38.?Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 2, fig. 2a; Ibid.,1880, p. 299, pi. 2, figs. 2a, b.?Zittel, Handb. Pal., 1, 1880, pp. 173, 728.?Hinde, Quart. Jour. Geol. Soc, London, 40, 1884, p. 835; Geol. Mag., dec. 3,5, 1888, p. 226, 227, fig. 1.Archaeoscyphia minganensis Hinde, Quart. Jour. Geol. Soc. London, 45, 1889, p.143, pi. 5, figs. 12-14; Canadian Rec. Sci., 3, 1889, p. 373.?Rauff, Paleeonto-graphica, 40, 1894, p. 240, pi. 1, figs. 1-10.Ethmophyllum minganense Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 77, fig.6-8.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, pp. xxii, 225, figs.Canadian (Romaine): Mingan Islands, Canada.ARCHINACELLA Ulrich and Scofield. Genotype: A. powers! Ulrich and Scofield.Metoptoma Billings (part), Geol. Surv. Canada, Pal. Fossils, 1, 1865, p. 39.Tryblidium Whiteaves fpart), Geol. Surv. Canada, Pal. Fossils, 3, 1884, p. 31. ? Whitfield, Bull. Amer. Mus. Nat. Hist., 1 and 2, 1886-9.Archinacella Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 821-828.Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 605.?Berkey, Amer.Geol., 21, 1898, p. 278.Archinacella? billlngsi (Walcottj.Metoptoma Billingsi Walcott, 35th Rep. New York State Mus. Nat. Hist., 1884,p. 212, pi. 17, figs. 12, 12a.Black River (Lowville): Russia, Herkimer County, New York.Archinacella canadensis (Whiteaves).Tryblidium Canadense ^\^liteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884,p. 31, pi. 5, figs. 1, la.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p.1234, text figs.Capulus Canadensis Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p.69, pi. 11, fig. 1.Archinacella canadensis Ulrich and Scofield Geol. Minnesota, 3, pt. 2, 1897, p.825 (gen. ref.).Niagaran (Guelph): Hespeler, Ontario.Archinacella cingulata Ulrich.Archinacella cingulata Ulrich Geol. Minnesota, 3, pt, 2, 1897, p. 829, pi. 61, figs.1, 2.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 606, fig. 805 g, h.Triblidium cingulatum Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen. ref.).Trenton (Curdsville) : Mercer County, Kentucky.ITolotype.?Cat. No. 45686, U.S.N.M.Archinacella clochensis Foerste.Archinacella clochensis Foerete, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 308,pi. 2, figs. 5a-b.Black River (Lomdlle): La Cloche Peninsula, Ontario. 62 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Archlnacella deformata (Hall).Orbicula? deformata Hall, Pal. New York, 1, 1847, p. 23, pi. 4, figs. 10a, 10b.(Orbicula deformis in explanation of plate.)Crania? deformata Miller, N. A. Geol. Pal., 1889, p. 341.?Hall and Clarke, Pal.New York, 8, pt. 1, 1892, p. 150.?Schuchert, Bull. U. S. Geol. Surv., 87,1897, p. 189.Archlnacella? deformata Raymond, Amer. Jour. Sci., 4th eer., 20, 1905, p. 375;Ann. Carnegie Mus., 4, 1908, p. 171, pi. 46, figs. 1-6.?Grabau and Shimer,N. A. Index Fossils, 1, 1909, p. 605, fig. 806.Metoptoma deformis Billings, Geology Canada, 1863, p. 937.Discina deformis Lincklaen, 14th Bep. New York State Cab. Nat. Hist., 1861,pi. 1, fig. 10.Stenotheca dubia Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, 1898,p. 58.Metoptoma dubia Hall, Pal. New York, 1, 1847, p. 23, pi. 4, figs. 11a, lib.Chazyan (Day Point-Valcour) : Crown Point, Valcour Island and Chazy, NewYork; Aylmer, Canada.Archiuacella deleta (Sardeson).Carinaroi)sis deleta Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 335,pi. 6, figs. 5, 6.Archlnacella deleta Ulricli and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 831,pi. 61, figs. 16-20.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 606,fig. 805c-e.Black Biver (Decorah): Minneapolis, St. Paul, Cannon Falls, etc., Minnesota.Plesiotype.?Gat. No. 45687, U.S.N.M.Archlnacella depressa Ulrich and Scofield.Archlnacella depressa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, j).830, pi. 61, figs. 8 and 9.Black River (Platteville): Minneapolis, Minnesota.Plastotypc?Cat. No. 45688, U.S.N.M.Archinacella estella (Billings).Metoptoma estella Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 153, fig.134a, b (advance sheets, 1862); Cat. Sil. Fossils Anticosti, Geol. Sur\\Canada, 1866, p. 18 (loc. ref.).Tryblidium? estella, WTiiteaves, Pal. Foas., Geol. Surv. Canada, 3, pt. 1, 1894,p. 31 (gen. ref.).Archinacella estella Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829(gen. ref.).Richmond (English Head) : English Head, Anticosti.Archinacella indianensis (Miller).Tryblidium indianense Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana,1892, p. 695, pi. 14, fig. 14 (adv. sheets, 1891, p. 85).?Cumiugs, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 977, pi. 39, fig. 11.Richmond: Fayette County, Indiana.Observation.?Compare Archinacella richmondensis Ulrich.Archinacella instabilis (Billings).Metoptoma instabilis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 251,fig. 236a, b.Tryblidium? instabilis Whiteaves, Pal. Fossils, Geol. Surv. Canada, 3, pt. 1,1884, p. 31 (gen. ref.).Archinacella instabilis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.829 (gen. ref.).Chazyan (Quebec L): Table Head, Newfoundland. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 63Archlnacella instabills incurva Ulrich and Scofield.Archinacella instabilis var. incurva Ulrich. and Scofield, Geol. Minnesota, 3, pt.2, 1897, p. 835, pi. 61, figs. 21-23.Black River (Decorah): Goodhne County, Minnesota.Holotype?Cat. No. 45689, U.S.N.M.Archinacella orbiculata (Hall).Cariuaropsis orbiculatus Hall, Pal. New York, 1, 1847, p. 306, pi. 83, figs. 8a-c.Helcion orbiculatus D'Orbigny, Prodr. Pal., 1, 1849, p. 9 (gen. ref.).?Emmons,Amer. Geol., 1, pt. 2, 1855, p. 164.Archinacella orbiculata Ruedemann, Bull. New York State Mue., 162, 1912, p.108, pi. 7, figs. 1-6.Trenton (Snake Hill): Snake Hill, Waterford, etc., New York.Archinacella patelliformis (Hall).Cariuaropsis patelliformis Hall, Pal. New York, 1, 1847, p. 183, pi. 40, figs. 2a, b. ? Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 314; N. A. Geol. Pal., 1889,p. 400, fig. 659.?Lesley, Geol. Surv\ Pennsylvania, Rep. P 4, 1889, p. 117,figs.Helcion patelliformis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 164, pi. 6, fig. 1.D'Orbigny, Prodr. Pal., 1, 1849, p. 9 (gen. ref.).Archinacella patelliformis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 832 (gen. ref.).?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 174, pi.12, figs. 1, 2.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 606.Black River-Maysvnie: Middleville, etc., New York (Trenton); New Jersey;Ohio; Missouri, etc.Archinacella perovalis (Whitfield).Metoptoma perovalis Wliitfield, Ann. Rep. Geol. Surv. Wisconsin, 1878, p. 74;Geol. Wisconsin, 4, 1882, p. 211, pi. 5, figs. 13 and 14.Archinacella perovalis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.830, pi. 82, figs. 3 and 4.Metoptoma explanata Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p.337, pi. 6, figs. 7, 8.Black River (Platteville) : Minneapolis, Minnesota; Beloit, Wisconsin.Archinacella phillipsi (Walcott).Metoptoma phillipsi Walcott, Mon, U. S. Geol. Surv., 8, 1884, p. 83, pi. 1, figs.4,4a.Archinacella phillipsi Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.829 (gen. ref.)Upper Pogonip: Pogonip Ridge, Eureka District, Nevada.Cotypes.?G&t. No. 17359, U.S.N.M.Archinacella pileolum (Whitfield).Triblidium pileolum Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 46, pi. 7,figs. 15-17.Tryblidium pileolum Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1236,figs.Archinacella pileolum Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 826(gen. ref.).Canadian (Beekmantown) : Beekmantown, New York,Archinacella powersi Ulrich and Scofield.Archinacella powersi Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829,pi. 61, figs. 3-5, p. 820, fig. la. 64 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Archinacella powers!?Continued.Triblidium powers! Miller, N. A. Geol. Pal., 2d App,, 1897, p. 771 (gen. ref.)Black River (Platte\'ille) : Beloit, Wisconsin.Plastotype.?G&t. No. 45690; U.S.N.M.Archinacella? propria Raymond.Metoptoma montrealensis Raymond (not Billings), Bull. Amer. Pal., 14, 1902,p. 34.Archinacella? propria Raymond, Ann. Carnegie Mus., 3, 1906, p. 575; 4, 1908,p. 172, pi. 46, figs. 7, 8.Chazyan (Day Point, Crown Point): Crown Point, Valcour Island, and Chazy,New York.Archinacella pulaskiensis Foerste.Carinaropsis patelliformis Hull (part). Pal. New York, 1, 1847, p. 306, pi. 83, figs.7a, b.Archinacella pulaskiensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p.309, pi. 3, fig. 3a-d.Cincinnatian (Pulaski): Pulaski, Lorraine, etc., New York,Archinacella richmondensis Ulrich.Archinacella richmondensis UMch, Geol. Minnesota, 3, pt. 2, 1897, p. 834, pi.61, figs. 6, 7.Richmond (Whitewater): Richmond, Indiana.Holotypc.?Cat. No. 45691, U.S.N.M.Observation.?Compare Archinacella indianensis (Miller).Archinacella rotunda Ulrich and Scofield.Archinacella rotunda Ulrich and Schofield, Geol. Minnesota, 3, pt. 2, 1897, p.835, pi. 61, figs. 24, 25.Triblidium rotundum Miller, N. A. Geol. Pal., 2d App., 1897, p. 771 (gen. ref.).Richmond (Maquoketa): Near Graf, Iowa.Eolotype?Gat. No. 45692, U.S.N.M.Archinacella rugatina Ulrich.Archinacella rugatina Uhich, Geol. Minnesota, 3, pt. 2, 1897, p. 835, pi. 82, figs.5,6.Richmond (Arnheim): Middletown, Ohio.Eolotype?Cat. No. 43693, U.S.N.M.Archinacella semicarinata Ulrich and Scofield.Archinacella semicarinata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 833, pi. 61, figs. 12, 13.Trenton (Prosser) : Cannon Falls, Goodhue County, Minnesota.Holotypc?Cat. No. 43694, U.S.N.M.Archinacella similis (^Vhitfield).Metoptoma similis Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878,p. 61; Geol. Wisconsin, 4, 1882, p. 196, pi. 3, figs. 12, 13.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 142, fig.Tryblidium simile Sardeson, Jour. Geol., 11, 1903, p. 479, fig. 3.Archinacella similis Uhich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 829(gen. ref.).Ozarkian (Mendota): East of Baraboo, Wisconsin.Archinacella simplex (Billings).Metoptoma simplex Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 346,fig. 334. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 65Archlnacella simplex?Continued.Tryblidium simplex ^Vlliteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. ], 1884,p. 31 (gen. ref.).?Wliitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 306,pi. 24, figs. 30, 31.?Seely, Kep. Vermont State Geo!., 7, 1910, pi. 62, figs.30, 31.Archinacella simplex Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.826 (gen. ref.).Canadian (Beekmantown) : Near Merrickville, Ontario.Archlnacella simiilatrix Ulrich and Scofield.Arcliinacella simulatrix Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 833, pi. 61, figs. 10, 11.?Grabau and Shimer, N. A. Index Fossils, 1, 1909,p. 606, fig. 805f, i.Black River (Decorali): St. Paul, ^Minnesota.Trenton (Hermitage): Frankfort, Kentucky.Holottjpe?Cat. No. 45695, U.S.N.M.Archlnacella subrotunda Ulrich and Scofield.Archinacella subrotunda Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 834, pi. 61, figs. 26, 27.Black River (Decorah): Near Cannon Falls, Minnesota.Eolotype?Cat. No. 45696, U.S.N.MArchinacella trentonensis (Billings).Metoptoma trentonensis Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p40, fig. 41a, b (adv. sheets, 1862).Tryblidium? trentonensis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1,1884, p. 31 (gen. ref.).Archinacella trentonensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 829 (gen. ref.).Trenton: Chevrotiere and Island of Montreal, Canada.Archinacella valida (Sardeson).Tryblidium validum Sardeson, Bull. ^Minnesota Acad. Nut. Sci., 3, 1892, p. 337,pi. 6, figs. 1, 2.Archinacella valida Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 832,pi. 61, figs. 14, 15.Trenton (Prosser): Near Cannon Falls and Kenyon, Minnesota.ARCTINURUS Castelnau. Genotype: Paradoxides boltoni Bigsby.Arctinurus Castelnau, Essai Syst. Sil. I'Amer. Sept., 1843, p. 21.?Reed, Quart.Jour. Geol. Soc. London, 58, 1902, pp. 60, 63, 73.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 307.Oncholichas Schmidt, Mem. I'vVcad. Imp. Sci. S(,. Petersburg, 7th ser., 33, 1885,pp. 31, 39.?Koken, Die Leitfossilien, Leipzig, 1896, p. 30.Platynotus Reed, Quart. Jour. Geol. Soc. I-ondon, 58, 1902, pp. 60, 62.Pterolichas Gurich, Neues Jahrb. f. Minn., Geol. Pal., Beilage-Band, 14, 1901,p. 528, pi. 20, fig. 2.?Reed, Quart. Jour. Geol. Soc. London, 58, 1902,pp. 62, 73.Arctinurus boltoni (Bigsby).Paradoxides boltoni Bigsby, Jour. Acad. Nat. Sci. Pliiladelphia, Istser., 4, pt. 2,1825, p. 365, pi. 23.?Green, Mon. Tril. N. A., 1832, p. 60, pi. 1, fig. 5.?Harlan, Trans. Geol. Soc. Pennsylvania, pt. 1, 1834, p. 103.Arctinurus boltoni Castelnau, P^ssai Syst. Sil. I'Amer. Sept., 1843, p. 21, pi. 3,fig. 2.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 307, fig. 1618.84243??Bull. 92?15 5 66 BULLETIN 92, ITNITED STATES NATIONAL MUSEUM.Arctiminis boltoiil?Continued.Platynotus boltoiii Conrad, Rep. New York State Geol Surv., 1838, p. 118.?Hall, Gcol. New York, pt. 4, Tab. Org. Rem., 1843, p. 19, fig. 1.Lichas boltoni Hall, Pal. New York, 2, 1852, p. 311, pi. 69; pi. 70, figs, la-g, j-1(not figs. Ih-i).?Gebhgjd, 8th Rep. New York State Cab. Nat. Hist., 1855,p. 29, pi. 69, fig. 1.?Meek and Worthen, Geol. Sun'. Illinois, 6, 1875, p. 508,pi. 25, fig. 5.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 336, fig.?Clarke, 10th Rep. State Geol. New York, 1891, p. 88; 44th Rep. New YorkState Mus., 1892, p. 112.?Keyes, Missouri Geol. Surv., 4, 1894, p. 226.?Grabau, Bull. New York State Mus., 45, 1901, p. 225, pi. 17.Lichas (Oncholichas) Boltoni Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg,7th ser., 33, 1885, p. 31.Pterolichas boltoni Gurich, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 14,1901, p. 528, pi. 20, fig. 2.Clinton (Rochester): Lockport, Rochester, etc., New York; Grimsby, Hamilton,etc., Ontario.Plastotype.?Cat. No. 4888, U.S.N.M.Arctinunis chicagoensis Weller.Arctinurus cliicagoensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Sun'., 4, pt.2, 1907, p. 248, pi. 23, figs. 7, 8; pi. 22, fig. 14.Niagaran (Racine): Hawthorne, Illinois.Arctinunis harrisi (Miller).Lichas hamsi Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 106, pi. 3, fig. 9.Lichas (Platynotus) harrisi Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 753.Richmond (Liberty): Near WaynesvUle, Ohio.Eolotype.?Qai. No. 40690, U.S.N.M.Arctinunis nereus (Hall).Lichas boltoni Hall, Pal. New York, 2, 1852, p. 311, pi. 70, figs. Ih-i (not figs.la-g, j-1).Lichas nereus Hall, 16th Rep. New York State Cab. Nat. Hist., 1863, p. 226.?Van Ingen, School of Mines Quart., 23, 1901, p. 64, pi. figs. 1^1-26.Arctinunis nereus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 308.Niagaran: Lockport, New York (Rochester); St. Clair Springs, IndependenceCounty, Arkansas (St. Clair).Arctinunis obvius (Hall).Lichas obvius Hall, 20th Rep. New York State Cab. Nat. Hist., 1870 (rev. ed.),p. 424, pi. 25, fig. 10.Lichas (Oncholichas) obvia Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 7thser., 33, 1885, p. 31.Niagaran: Lyons, Iowa.Arctinurus occidentalis (Hall).Lichas boltoni Worthen and Meek, Geol. Surv. Illinois, 6, 1875, p. 508, pi. 25, fig. 5.Lichas boltoni var. occidentalis Hall, Trans. Albany Inst., 4, 1864, p. 223; 28thRep. New York State Mus. Nat. Hist. (doc. ed.), 1877, pi. 34, figs. 8-11;(mus. ed.), 1879, p. 198, pi. 34, figs. 8-11; 11th Rep. Dep. Geol. Nat. Hist.Indiana, 1882, p. 344, pi. 36, figs. 8-11, 12.?Lesley, Geol. Surv. Pennsylva-nia, Rep. P 4, 1889, p. 335, fig.?Foerste, Proc. Boston Soc. Nat. Hist., 24,1890, p. 272.Arctinunis occidentalis Weller, Bull. Chicago Acad. Sci., Nat. Hist., Surv., 4,pt. 2, 1907, p. 247, pi. 20, figs. 10-12.?Grabau and Sliimer, N. A. Index Fos-sils, 2, 1910, p. 308, fig. 1621a. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 67Arctiniirus occidentalis?Continued.Niagaran: Waldron, Indiana, and Newsom, Tennessee (Waldron); Grafton, Joliet,and Bonfield, Illinois; Cumberland Gap, Tennessee (Clinton).Arenicola Salter. See Arenicolitee Salter.ARENICOLITES Salter. Genotype: Arenicola didyma Salter.Arenicola Palter (not Leach), Quart. Jour. Geol. Soc. London, J 2, 1856, p. 248.Arenic;olites Salter, Quart. Jom*. Geol. Soc. Ivondon, 13, 1857, p. 204.?Natliorst.Kougl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, p. 49.?Whitfield, Geol.Wisconsin, 4, 1882, p. 177.?Miller, N. A. Geol. Pal., 1889, p. 517.Arenicolites (Scolithus) linearis. See Scolithus linearis.Arenicolites sparsiis Salter.Arenicolites sparsus Salter, Quart. Jour. Geol. Soc. London, 13, 1857, p. 203. ? Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 138.?Nicholson,Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 41, fig.l7.Silurian: Europe; Dundas, Ontario (Cataract).ARETHL'SINA Barrande. Genotype: Arethusa koninckii Barrande.Arethusa Barrande, Notice Prel., Syst. Sil. Boheme, 1846, p. 48.Arethusina Barrande, Neues Jahrb. f. Min., etc., 1850, p. 780; Syst. Sil. du Cen-tre Boheme, 1, 1852, p. 493.?Pictet, Traite de Pal., 2d ed., 2, 1854, p. 498.?Barrande, Neues Jahrb. f. Min., Geol. Pal., 1868, p. 257.?CEhlert, Bull. Soc.d'Etudes Sci. d'Angers, 1885, p. 4.?Zittel, Handb. Pal., 2, 1885, p. 624.?Beecher, Amer. Jour. Sci., 3d ser., 46, 1893, p. 143; Amer. Geol., 16, 1895,pp. 167, 176.?Koken, Die Leitfossilien, Leipzig, 1896, p. 24.?Lindstrom,Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 32.Arethiisina americana Walcott.Arethusina Americana Walcott, Mono. U. S. Geol. Surv-., 8, 1884, p. 62, pi. 9,fig. 27.?Brogger, Geol. Foren. Stockholm Forhandl., S, 1886, p. 206.Harpides? americanus Freeh, Leth. geog., Th. 1, Leth. Pal., 2, 1897, p. 44, foot-note.Cambrian and VOrdoviciau (Pogoiup): Eureka District, Nevada.Arethusina argentina Kayser.Arethufsina argentina Kayser, Beitr. Geol. Pal. Argentinischen Eepublik, Palaeon-tographica Supp., 3, 1876, p. 12, pi. 2, fig. 2.Ordovician: Quebrada de la Laja, Argentina.Argaster Hall. See Meyopalseaster Schuchert.Arges arkansana Van Ingen. See Dicranopeltis arkansana.Arges phlyctainodes Hall. See Corydocephalus phlyctainodes.Arges phlyctainodes depaupkratus ^'iu^ Ingen. See Corydocephalus depaupe-ratus.Argks tuberculatus Weller. See Corydocephalus tuberculatus.ARIONELLUS Barrande. Genotype: A. ceticephalus Barrande.Arionellus Ban-ande, Neues Jahrb. f. Min., etc., 1850, p. 779; Syst. Sil. du CentreBoheme, 1, 1852, p. 404, pi. 10.?Pictet, Traite de Pal., 2d ed., 1854, 2, p. 491.?Billings, Canadian Nat. Geol., 5, 1860, p. 313; Pal. Foss., 1, Geol. Surv.Canada, 1865, p. 405.?Kayser, Beit. Geol. Pal., Argentinischen Republik,Palaeontographica Suppl., 3, 187G, p. 7.?Walcott, Science, 3, 1884, p. 281. 68 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.ARIONELLUS?Coutiuued.Zittel, llandb. Pal., 2, 1885, p. 601.?Kokeii, Die Leitfossilien, Leipzig, 1896,p. 21, fig. 13, figs. 5, 6.?Liadstrom, Kongl. Sven. Vet.-Akad. Handl., 34,No. 8, 1901, pp. 22, 25.Arionellus? cylindricus Billings.Arionellus tyliadricus BLlliags, Canadian Nat. Geol., 5, 1860, p. 314, fig. 14;Geol. Canada, Geol. Surv. Canada, 1863, \). 237, fig. 264; Pal. Foss., 1, Geol.Surv. Canada, 1865, p. 406, fig. 385.Ptychaspis cyliudricus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 198.Agraulos cylindricus Miller, N. A. Geol. Pal., 1889, p. 527, fig. 955.Ozarkian? (Levis-erratic): Point Levis, Quebec.Arionellus oweni Meek and Hayden. See Ptychoparia oweni.Arionellus pustulatus Walcott. See Glaphurus pustulatus.Arionellus? subclavatus Billings.Arionellus subclavatus Billings, Canadian Nat. Geol., 5, p. 315, fig. 15; Geol.Canada, Geol. Surv. Canada, 1863, p. 237, fig. 265a, b; Pal. Foss., 1, Geol.Surv. Canada, 1865, p. 406, fig. 386a.Ptychaspis subclavatus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 198.Ozarkian? (Levis-erratic): Point Levis, Quebec.ARISTERELLA Ulrich. Genotype: A. nitidula Ulrich,Aristerella, Ulrich Geol. Minnesota, 3, pt. 2, 1894, p. 624.?Miller, N. A. Geol.Pal., 2d App., 1897, p. 779.?Grabau and Shimer, N. A. Index Fossils, 1,1909, p. 518.Aristerella nitidula Ulrich.Aristerella nitidula LHrich Geol. Minnesota, 3, pt. 2, 1894, p. 524, pi. 35, figs.30-39.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 518, fig. 696c, d, e.Black River: Chatfield, Minnesota (Decorah); Lincoln County, Missouri (Auburn).Cotypes?Cat. No. 46092, 46093, U.S.N.M.Aristophycus Miller and Dyer. Genotype: A. ramosum Miller and Dyer.Aristophycus Miller and Dyer, Contr. to Pal. No. 2, 1878, p. 3.?^James, J. F., Jour.Cincinnati Soc. Nat. Hist., 7, 1884, p. 130.?Miller, N. A. Geol. Pal., 1889,p. 107.Observation.?Genus and species abandoned by author in 1889, as probablyinorganic and, if fucoidal, too irregular and too little knowTi to be retained.Aristophycus ramosum Miller and Dyer.Aristophycus ramosum Miller and Dyer, Contr. to Pal., No. 2, 1878, p. 4, pi, 4,fig. 2.?James, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 130, pi. 6, fig. 2;14, 1891, p. 46.?Miller, N. A. Geol. Pal., 1, 1889, p. 107.Maysville: Cincinnati, Ohio.Aristophycus ramosum germanum Miller and Dyer.Aristophycus ramosum var. germanum Miller and Dyer, Contr. to Pal., No. 2,1878, p. 4, pi. 4, fig. 3.?Miller, N. A. Geol. Pal., 1889, p. 130.?James, Jour.Cincinnati Soc. Nat. Hist., 1891, 14, p. 46.Maysville: Cincinnati, Ohio.ARISTOZOE Barrande. Genotype: A. bisulcata Barrande,Aristozoe Barrande, Syst. Sil. Boheme, Sup. 1, 1872, p. 474.?Canu, Ann. Soc.geol. du Nord, 12, 1885, p. 145.?Jones Pep. 53d Meeting Brit. Assoc. Adv.Sci., 1884, p. 217; 55th Meeting, 1886, p. 358.?Zittel, Handb. d. Pal., 2, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 69ARISTOZOE?Continued.Munich, 1885, p. 552.?Novak, Sitz. d. k. bohm. Gesell. d. Wiss. Math.-Naturw. CI., 188G, p. 239.?Jones and Woodward, Mon. Brit. Pal. Phyllopoda,Pal. Soc, 1888, p. 3.?Whidbome, Mon. Dev. Fauna South England, 1, Pal.Soc, 1889, p. 42.?Miller, N. A. Geol. Pal., 1889, p. 530.?Koken, Die Leit-fossdlien, Leipzig, 1896, p. 40.Arlstozoe canadensis \\liitfield.Aristozoe canadensis \\Tiitfield, Ann. New York Acad. Sci., 1890, p. 505; 5, 1891,p. 572, pi. 12, figs. 17, 18; Geol. Surv. Ohio, Pal., 7, 1893, p. 462, pi. 8, figs.17, 18.?Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 379, fig.16806, f.Trenton: Ottawa Basin, Ontario.ARTHRARIA Billings. Genotype: A. antiquata Billings.Arthraria Billings, Canadian Nat., n. s., 6, 1872, p. 467; Pal. Foss., Geol. Sur.\Canada, 2, pt. 1, 1874, p. 66; Geol. Surv. Newfoundland, Rep. Progr. for1881, 1882, App. p. 14.?Miller, N. A. Geol. Pal., 1889, p. 107.Arthraria biclavata Miller.Arthraria biclavata Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 354, fig. 26.Maysville: Cincinnati, Ohio, and vicmity.ARTHROCLEMA Billings. Genotype: A. pidchellura Billings.Arthroclema Billings, Pal. Fcss., 1, 1865, p. 54 (adv. sheets, 1862).?Uhich, Jour.Cincinnati Soc. Nat. Hist., 5, 1882, p. 151; 14th Ann. Rep. Geol. Nat. Hist.Surv. Minnesota, 1886, p. 60; Amer. Geol., 1, 1888, p. 232.?Miller, N. A.Geol. Pal., 1889, p. 293.?Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890,p. 192; Geol. Surv. Illinois, 8, 1890, p. 400; Geol. Minnesota, 3, 1893, p. 197;Zittel's Textb. Pal., 1896, p. 281.?Simpson, 14th Ann. Rep. State Geol.New York for 1894, 1897, p. 546.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1,1894, p. 5.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 42.?Cumings, Amer. Jour. Sci., 4th ser., 17, 1904, p. 75, fig. 83; 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 739.?Cirabau and Shinier, N. A. IndexFossils, 1, 1907, p. 152.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 150;Zittel-Eastman Textb. Pal., 1913, p. 343.Arthroclema angnlare Ulrich.Arthroclema angulare Ulrich, C!ontr. Micro-Pal. Canibro-Sil., pt. 2, 1889, p. 45;Geol. Surv. Illinois, 8, 1890, p. 641, pi. 29, figs. 6-6b.?\Miiteaves, Pal. Foss.,3, 1895, p. 117.Richmond: Wilmington, Illinois (Fernvale); Stony Mountain, Manitoba (StonyMountain); English Head, etc., Anticosti (English Head and Charleton).Arthroclema armatum Ulrich.Arthroclema armatum Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 194,fig. ]9a-d (not e-h); Geol. Minnesota, 3, 1893, p. 201, pi. 2, figs. 8-11, 25,28-33, pi. 3, fig. 7.?Simpson, 14th Ann. Rep. State Geol. New York for 1894,1897, p. 547, fig. 111.?Sardeson, Jour. Geol., 9, 1901, p. 161.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 153, fig. 2051.?Bassler, Bull. U. S.Nat. Mus. No. 77, 1911, pp. 151, 152, fig. 73.Trenton (Prosser): Cannon Falls and St. Paul, Minnesota. ?Ordovician (Glauconite limestone): Reval, Esthonia, Russia.Cotypes?Cat. No. 43633, U.S.N.M.Arthroclema armatum Ulrich (part). See Arthroclema i)ulchelluni. 70 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Arthroclema billingsi Uh-ich.Arthroclema billingsi Ulrich, Geol. Siirv. Illinois, 8, 1890, p. 642; Geol. Minnesota,3, 1893, p. 197, pi. 2, fig. 7.?Simpson, 14th Ann. Rep. State Geol. New Yorkfor 1894, 1897, p. 547, fig. 105.?Grabau and Shimer, N. A. Index Fossils, 1,1907, p. 153, fig. 205k.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 343,fig. 501a.Trenton: Ottawa, Ontario.Holotype.?Qat. No. 43415, U.S.N.M.Arthroclema cornutum Ulrirh.Arthroclema cornutum Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 193,fig. 18; Geol. Minnesota, 3, 1893, p. 200, pi. 2, figs. 16-21, 23, pi. 3, fig. 34.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 547, figs.106-108, 112.Black River (Decorah): Minneapolis, Minnesota.Cotypes.?Ca.t. No. 43634, U.S.N.M.Arthroclema piilchellum Billings.Arthroclema pukhellum Billings, Pal. Foss., 1, 1865, p. 54, fig. 60 (adv. sheets,1862); Geol. Canada, Geol. Surv. Canada, 1863, p. 157, fig. 119.?Ulrich,Geol. Surv. Illinois, 8, 1890, p. 642, pi. 29, fig. 6c; Geol. Minnesota, 3, 1893,pi. 2, figs. 12-15.Arthroclema armatum (part) Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890,p. 194, fig. 19e-h (not 19a-d).Trenton: Ottawa, Ontario.Arthroclema spiniforme Ulrich. See Helopora spiniformis.Arthroclema ntriatum Ulrich.Arthroclema striatum Ulrich, Geol. Minnesota, 3, 1893, p. 198, pi. 2, figs. 22, 24,pi. 3, figs. 28-33.?Simpson, Hth Ann. Rep. State Cieol. New York for 1894,1897, p. 547, figs. 109, 110.Black River (Decorah): Mmneapolis and St. Paul, Minnesota,Cotypes.?C&t. No. 43498, U.S.N.M.Arthronema Ulrich. See Arthrostylus Ulrich.ARTHROPHYCUS Hall. Genotype: Fucoides harlani Conrad . Arthrophycus Hall, Pal., New York, 2, 1852, p. 4.?Dawson, Canadian Nat.and Geol., n. s., 1, 1864, p. 366.?Nathorst, Kongl. Sven. Vet.-Akad. Handl.,18, No. 7, 1881, pp. 32, 86.?James, Jour. Cincinnati Soc. Nat. Hist., 16, 1893,p. 82; Proc. Amer. Assoc. Adv. Sci., 42, 1894, p. 172.?Grabau, Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 132; Bull. New York State Mus., 9, 1901, p. 132.?Sarle, Proc. Rochester Acad. Sci., 4, 1906, p. 203.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 247.Harlania Goeppert, Zeits. d. d. Geol. Gesell., 3, 1851, p. 189.?Roemer. Leth.geog., 1 Theil, Leth. Pal., Erste Lief, 1880, p. 135.?Nathorst, Kongl. Sven.Vet.-Akad. Handl., 21, No. 14, 1886, p. 32.Arthrophycus alleghaniensis (Harlan).Fucoides alleghaniensis Harlan, Jour. Acad. Nat. Sci., 6, 1831, p. 289, pi. 15.?Taylor Trans. Geol. Soc. Pennsylvania, 1, 1834, p. 5.?Harlan, Medical andPhysical Researches, 1835, p. 393, fig. 1 on plate.?Unger, Gen. et Sp. Foss.Plants, 1850, p. 30.Arthrophycus alleghaniensis James, Jour. Cincinnati Soc. Nat. Hist., 16, 1893,p. 86.?Proc. Amer. Assoc. Adv. Sci., 42, 1894, p. 172.?Sarle, Proc. Roches-ter Acad. Sci., 4, 1906, p. 203.?Bassler, Bull. Geol. Surv. Virginia, 2a, 1909,pi. 8, fig. 4.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 247. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 71Arthrophycus alleghaniensis?Continued.Fucoidos liarlani Conrad, 2d Ann. Rep. New York Geol. Surv., 1838, p. 113. ? Vanuxem, Nat. Hist. New York, Geol, 3, 1842, p. 71, fig. 10.?Hall, Nat.Hist. New York, Geol., 4, 1843, p. 46, figs. 1, 2; tab. ill. 1, figs. 1, 2.?Owen,Amer. Jour. Sci. Arts, 48, 1845, p. 299, figs. 1, 2.?Hall, Pal. New York, 2,1852, p. 5, pi. 1, fig. 1; pi. 2, figs. la-c.Arthrophycus harlani Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 821, fig. 623.Emmons, Manual Geol., 1860, p. 105, fig. 95.?Lincklaen, 14th Rep. NewYork State Cab. Nat. Hist., 1861, p. 52, pi. 5, figs. 10,11.?Chapman, Cana-dian Jour., n. s., 8, 1863, p. 209, fig. 211; Expos. Min. Geol. Canada, 1864,p. 181, fig. 2L1.?Whiteaves, Trans. Royal Soo. Canada, 1, sec. 4, 1883, p.110.?Lesley, Geol. Surv. Pennsylvania Rep. P 4, 1889, p. 37-39, figs.?James, Jour. Cincinnati Soc. Nat. Hist., 16, 1893, pp. 82-86; Proc. Amer.Assoc. Adv. Sci., 42, 1894, p. 172.?Clarke, ArcliivosMus. Nac. Rio de Janeiro,10, author's Eng. ed., 1900, p. 3.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 132, pi. 16; Bull. New York State Mus., 45, 1901, p. 132, pi. 16.Crinosoma antiqua Castelnau, Syst. Sil., 1843, p. 50, pi. 25, fig. 1.Encrinus giganteus Eaton, Geol. Textbook, 2d ed., 1832, p. 37, pi. 1, fig. 8.Harlania Hallii Goeppert, Nov. Act. Acad. Caes. Leop., 22, 1852, Suppl. (Ueber-gangsgeb, p. 98, pi. 41, fig. 4); Zeits. d. d. geol. Gesell., 3, 1852, pp. 189, 205;Saporta Le Monde des Plantes Appar. Homme, Paris, 1879, p. 164, figs. 1, 2.Schimper, Pal. Veg., 1, 1869, p. 196, pi. 2, fig. 6.?Roemer, Leth. Geog., 1,Pal., 1880, p. 135, fig. 4.?Lesquereux, 13th Ann. Rep. Indiana Geol. Surv.,1883, p. 29, pi. 2, fig. 3.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889,p. 272, fig.?James, Proc. Amer. Assoc. Adv. Sci., 42, 1894, p. 172.?Dana,Man. Geol., New York, 4th ed., 1895,p. 545, fig. 744.?Nathorst, Forh. Geol.Foren. Stockholm, 19, pt. 5, 1897, p. 364, pi. 5.Fucoides Brongniartii Harlan, Featherstonhaugh's Monthly Amer. Jour. Geol.,1, 1832, p. 307.?Taylor, Trans. Geol. Soc. Pennsylvania, 1, 1834, p. 14, pi. 3,fig. 6.?Harlan, Medical, Physical Res., 1835, p. 398, pi. ? , fig. 2.?Conrad1st Ann. Rep. New York Geol. Surv., 1837, p. 168.Top of White Medina (Tuscarora, Clinch, etc.): Mifflin County, etc., Pennsyl-vania; New York; Ontario; Maryland; Virginia.Arthrophycus harlani Rogers. See Arthrophycus alleghaniensis.ARTHROPORA ITlrich. Genotype: Ptilodictya (Stictopora) shafferi Meek.Arthropora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 152, 167.?Miller,N. A. Geol. Pal., 1889, p. 293.?Uhich, Geol. Surv. Illinois, 8, 1890, p. 393;Geol. Minnesota, 3, 1893, p. 176; Zittel'sTextb. Pal. (Engl. ed.), 1896, p. 279.?Pocta, Syst. Sll. Centre Boheme, 8, 1894, pt. 2, p. 14.?Simpson, 14th Ann.Rep. State. Geologist New York for the year 1894, 1897, p. 605.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, p. 46.?Grabau and Shimer, N. A.Index Fossils, 1, 1907, p. 156.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 739.?Bassler, Bull. U. S. Nat. Mus., No. 77, 1911, p. 119;Zittel-Eastman Textb. Pal., 1913, p. 345.Arthropora bifurcata Ulrich.Arthropora bifurcata Ulrich, Geol. Minnesota, 3, 1893, p. 178, pi. 14, figs. 22-25.Black River (Decorah): St. Paul and Cannon Falls, Minnesota.Trenton: Minnesota, Kentucky, Tennessee, and Canada.(Jotijpes.?C&t. No. 43504, U.S.N.M.Arthropora chicinnatiensis (James).Ptilodictya? cinciunatiensis James, Paleontologist, No. 5, 1881, p. 39.Arthropora cincinnatiensis Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 14, pi. 4,fig. 7.Maysville (Mount Hope): Cincinnati, Ohio, and vi(;inity. 72 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Arthropora cleavelandl (James).Plilodictya deavelandi James, Paleontologist, No. 5, 1881, p. 38.Ptilodictya grahami James, Paleontologist, No. 5, 1881, p. 39.Ptilodictya dubia James, Paleontologist, No. 5, 1881, p. 40.Arthropora shafferi-cleavelandi Nickles and Bassler, Bull. U. S. Geol. Surv., 1731900, p. 171.Arthropora cleavelandi Bassler, Proe. U. S. Nat. Mus., 30, 190G, p. 14, pi. 3, figs.13-16; pi. 4, fig. 6.?Cimiings, 32d Ann. Rep. Bop. Geol. Nat. Ties. Indiana,1908, p. 760, pi. 26, fig. 10.Eden: Cincinnati, Ohio, and vicinity.Arthropora kentuckiensis (James).Ptilodictya kentuckyensis James, Paleontologist, No. 5, 1881, p. 38.Arthropora kentuckiensis Bassler, Proc. U. S. Nat. Mus., 30, 3906, p. 15, pi. 4,fig. 5.Trenton (Upper): Ohio Biver bank opposite Cincinnati, Ohio.Arthropora reversa Ulrich.Arthropora reversa Ulrich, Geol. Minnesota, 3, ]893, p. 178, pi. 14, fig. 26.Trenton (Prosser): St. Paul, Minnesota.Holotype.?Csit. No. 43502 U.R.N.M.Arthropora shafferi (Meek).Ptilodictya (Stictopora) Shafferi Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872,p. 317; Pal. Ohio, 1, 1873, p. 69, pi. 5, figs. la-c.Ptilodictya shafferi Nicholson, Pal. Prov. Ontario, 1875, p. 33, fig. 4.Stictopora shafferi Lesley, Geol. Surv. Pt^nnsylvania, Rep. P 4, 1890, p. 1069, figs.Arthropora shafferi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 167, pi. 7,figs. 10, 10a.?Miller, N. A. Geol. Pal., 1889, p. 293, figs. 453-455.?UWch,Geol. Surv. Illinois, 8, 1890, p. 308, fig. 3e.?Grabau and Shimer, N. A. IndexFossils, 1, 1907, p. 157.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173,1900, p. 171.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 767, pi. 26, fig. 9.Crateripora erecta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 29, pi. 7,figs. 29, 29a; 5, 1882, p. 151.Stromatopora(?) lichenoides James, Paleontologist, No. 3, 1879, p. 18; Jour.Cincinnati Soc. Nat. Hist., 9, 1886, p. 251; 15, 1892, pt. 3, p. 90.?Bassler,Proc. U. S. Nat. Mus., 30, 1906, p. 56.Maysville (Bellevue, Conyville): Cincinnati, Ohio, and many localities in Ohio,Indiana, Kentucky, and Tennessee.Plesiotypes.?Ga,t. Nos. 43630, 43646 U.S.N.M.Arthropora shafferi-cleavelandi Nickles and Bassler. See Arthropora cleave-landi.Arthropora simplex Ulrich.Arthropora simplex Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Sm-v. Minnesota,1886, p. 65; Geol. Minnesota, 3, 1893, p. 177, pi. 14, figs. 12-21.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 157, fig. 208g.?Bassler, Bull. U. S.Nat. Mus., 77, 1911, p. 120, 121, fig. 16.Black River (Decorah): Minneapolis, St. Paul, etc., Minnesota; Decorah, Iowa,Ordo\dcian (Wassalem): Uxnorm, Esthonia, Russia.Cotypes.?G&t. No. 43503, U.S.N.M.ARTHRORHACHIS Hawle and Corda. Genotype: Battus tardus Barrande.Arthrorhachis Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wkss., 5(extract), 1847, p. 114, pi. 6, fig. 60.?Raymond, Ottawa Naturalist, 26, 1913,p. 3. BIBLIOGRAPHIC UST OF GENERA AND SPECIES. 73Arthrorhachis galba (Billings).AgiiostusGalba Billings, Pal. Foas., 1, Geol. Siirv. Canada, .1865, p. 297, fig. 288. ? \'ogdes, Amer. Geol., 9, 1892, p. 395, pi. 9, fig. 6.?Bassler, Bull. Geol. Surv.Virginia, 2a, 1909, p. Ill, figs. 10, 2-5.Chazyan: Table Head, Pistolet Bay, and four milefi northeast of Portland Creek,Newfoundland (Quebec?M, N, P); Lexington, Virginia (Liberty Hall).ARTHROSTYLUS Ulrich. Genotype: Helopora tenuis James.Arthronema (preoccupied) Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp.151, IGO; Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 14.Arthrostylus Ulrich, American Geologist, 1, 1888, p. 230.?Miller, N. A. Geol.Pal., 1889, p. 293.?Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 188;Geol. Surv. Illinois, 8, 1890, p. 400; Geol. Minnesota, 3, 1893, p. 187; Zittel'aTextb. Pal. (Engl, ed.), 1896, p. 280.?Simpson, 14th Ann. Rep. State Geol.New York for 1894, 1897, p. 527.?Nickles and Bassler, Bull. U. S. Geol.Surv., 173, 1900, p. 42.?Grabau and Shimer, N. A. Index Fossils, 1. 1907,p. 152.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 740.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 147; Zittel-EastmanTextb. Pal., 1913, p. 342.Arthrostylus conjunctiis Ulrich.Arthrostylus conjunctus Ulrich, Joiu'. Cincinnati Soc. Nat. Hist., 12, 1890, p.189, fig. 14; Geol. Minnesota, 3, 1893, p. 188, pi. 3, figs. 13, 14.?Simpson,14th Ann. Rep. State Geol. New York for 1894, 1897, p. 526, figs. 78, 79, 79a.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 147, 148, fig. 70; Zittel-EastmanTextb. Pal., 1913, p. 343, fig. 501d, e.Black River (Decorah): Near Fountain, Minnesota.OrdoAT-cian (Wassalem): Uxnorm, Esthonia, Russia.Hohtype.?CAt. No. 43636, U.S.N.M.Arthrostylus curtus (Ulrich).Arthronema curtum Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 161, pi.6, fig. 9.Arthrostylus curtus Miller, N. A. Geol. Pal., 1889, p. 293.?Nickles and Bassler,Bull. U. S. Geol. Surv., 173, 1900, p. 171.Maysville (Mount Hope): Covington, Kentucky.Hnlotype?CAt. No. 43639, U.S.N.M.Ol)servation.?Probably the basal segment of some species of Arthropora.Arthrostylus obliquus Ulrich.Arthrostylus obliquus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 190,figs. 14c, d; Geol. Minnesota, 3, 1893, p. 188, pi. 3, figs. 15, 16.?Grabau andShimer, N. A. Index Fos.sils, 1, 1907, p. 152, fig. 205i.?Bassler, Bull. U. S.Nat. Mus., 77, 1911, p. 148, fig. 71.Black River (Decorah): Minneapolis, Minnesota.Ordovician (Echinospherites limestone): Wolchow River, St. Petersburg, Russia.Holotype.?VjAt. No. 43639, U.S.N.M.Arthrostylus tenuis (James).Helopora tenuis James, Paleontologist, No. 1, 1878, p. 3.Arthronema tenuis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 160, pi.6, figs. 8-8c.Arthrostylus tenuis Ulrich, Geol. Minnesota, 3, 1893, pi. 3, fig. 16e; Jour. Cin-cinnati Soc. Nat. Hist., 12, 1890, pp. 189, 190, figs. 14e, f.?Bassler, Proc.U. S. Nat. Mus., 30, 1906, p. 15.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 768, pi. 26, figs. 8-8c. 74 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Arthrostylus tenuis?Continued.Trenton (Upper) and Eden: Cincinnati, Ohio, and vicinity; Indiana and Ken-tucky; New York (Indian Ladder).Plesiotypes?Cat. No. 43637, U.S.N.M.ASAPHELLUS Callaway. Genotype: Asaphus homfraj-T Salter.Asaphellus Callaway, Quart. Jour. Geol. Soc. London, 33, 1877, p. 663.?Zittel,Handb. Pal., 2, 1885, p. 609.?Raymond, Ann. Carnegie Mus., 7, No. 1, 1910,p. 37; Zittel-Eastman Textb. Pal., 1913, p. 719.?Grabau and Rliimer, N. A.Index Fossils, 2, 1910, p. 290.Asaphellus gyracanthus Raymond.Asaphus canalis? Cleland, Bull. Amer. Pal., 3, 1900, p. 128, pi. 16, figs. 7, 8; 4,1903, p. 38.Isotelus canalis Weller, Pal. New Jersey, 3, 1902, p. 132, pi. 5, figs. 5, 6.Asaphellus gyracanthus Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 39, pi.14, figs. 5-7.Canadian (Beekmantown): Fort Himter, New York (Tribes Hill), and Columbia,New Jersey.Asaphellus homfiayi (Salter).Asaphus Ilomfrayi Salter, App. Ramsay Geol. N. Wales; Mem. Geol. Surv., 3,1866, p. 311, pi. 8, figs. 11-14; Mem. Geol. Surv. Great Britain, 3, 1881, 2d ed.,p. 506, pi. 8, figs. 11-14.Asaphus (Isotelus) Ilomfrayi Salter, Mon. British Tril., Pal. Soc, 1866, p. 165,pi. 24, figs. 6-12; Cat. Camb. and SJl. Foss., 1873, p. 17.Asaphus (Asaphellus) Homfrayi Callaway, Quart. Joiu". Geol. Soc. London, 33,1877, p. 663, pi. 24, fig. 1.Asaphellus Homfrayi var. Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20,1902, p. 413, pi. 18, figs. lOa-e; Rep. Cambrian Rocks Cape Breton, Geol.Surv. Canada, 1903, p. 232, pi. 18, figs. lOa-e.Asaphellus Homfrayi, var. macropyga Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 290, fig. 1598.I^ower Ordovician: Europe; McLeod Brook, near Boisdale, Cape Breton, NovaScotia (Bretonian?Div. C 3c2).AsAPHELLU.s PLANU.S Mattlicws. See Hemigyraspis plana.ASAPHOCRINUS Springer. Genotype: A. bassleri Springer.Asaphocrinus Springer, Mon. Crin. Flex., Smiths. Inst, (in press).Asaphocrinus hassleri Springer.Asaphocrinus bassleri Springer, Mon. Crin. Flex., Smiths. Inst, (in press).Niagariin (Brownsport): Decatur County, Tennessee,Asaphocrinus Incisus (Ringueberg).Lecanocrinus incisus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1, 1886, p.10, pi. 1, fig. 6.Asaphocrinus incisus Springer, Mon. Crin. Flex., Smiths. Inst, (in press).Clinton (Rochester): Lockport, New York.Asaphocrinus ornatus (Hall).Cyathocrinus? Hall, Nat. Hist. New York, Geol. 4th Dist., 2, 1843, p. 201, pi. 44,figs. 2a-m.Lecanocrinus ornatus Hall, Pal. New York, 2, 1852, p. 201, pi. 44, figs. 2a-m.Asaphocrinus ornatus Springer, Mon. Crin. Flex., Smiths. Inst, (in press).Lecanocrinus nitidus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1, 1886,p. 9, pi. 1, fig. 5.Lecanocrinus excavatus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1,1886, p. 11, pi. 1, fig. 7.Clinton (Rochester): Lockport, New York. BIBLIOGRAPHIC UST OF GENERA AND SPECIES. 75ASAPHOIDICHNUS Miller. Genotype: A. trifidus Miller.Asaplioidichnus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, pp. 217, 218;N. A. Geol. Pal., 1889, p. 530.Asaphoidichnus dyeri Miller.Asaplioidichnus dyeri Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 219,pi. 13, fig. 1.?Nathorst, Kongl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881,p. 48.Eden (Economy): Cincinnati, Ohio.Asaphoidichnus trifldus Miller.Asiiphoidiehnus trifidTis Miller, Jour. Cincinnati Soc, Nat. Hist., 2, 1880, p. 218;N. A. Geol. Pal., 1889, p. 530, fig. 966.Eden (Economy): Cincinnati, Ohio.ASAPHUS Brongniart. Genotype: Entomolithus paradoxus expansus Linnaeus.Asaphus Brongmart, Hist. Nat. Crust. Foss., 1822, p. 17.?DeKay, Annals LyceumNal. Hist., New York, 1, 1824, p. ]75 footnote.?Dalman, Kongl. Vet.-Akad.Handl. for 1826, 1827, pp. 149, 235, 268.?Dalman-Engelhart, Die Palaeaden,Nurnberg, 1828, pp. 32, 41.?Eichwald, Zool. Specialis, pt. 2, Vilnae, 1830,p. 114.?Fischer de Waldheim, Oryctographie de Moscou, 1830-1837, p. 121. ? Eaton, Geol. Textb.,2d ed., 1832, p. 31.?Green, Mon. Tril. N. A., 1832, pp.16, 43.?Murchi-son, Sil. Syst., 1839, p. 654.?Edwards, Hist. Nat. d. Crus-taces, 3, 1840, p. 305.?Burmeister, Org. der Tril., Berlin, 1843, p. 122.?Portlock, Rep. Geol. Londonderry, 1843, pp. 274, 292.?Goldfuss, NeuesJahrb. f. Min., etc., 1843, pp. 541, 560.?Emmrich, ibid., 1845, p. 41.?Loven, Ofvers, Kongl. Vet.-Akad. Forhandl., 2, 1845, p. 50.?Burmeister,Org. Tril., London, 1846, pp. 105, 108.?Hawle and Corda, Abh. d. k. bohmis-chen GeseU. d. Wiss., 5 (extract), 1847, p. 68, pi. 4, fig. 38.?Salter, Mem.Geol. Surv. United Kingdom, dec. 2, 1849, pi. 5.?^McCoy, Ann. Mag. Nat.Hist., ser. 2, 4, 1849, p. 399.?Barrande, Neues Jahrb. f. Min., etc., 1850, p.778; Syst. Sil. du. Centre Boheme, 1, 1852, p. 643.?Pictet, Traite de Pal.,2d ed., 2, 1854, p. 511.?McCoy, British Pal. Rocks and Foss., 1854, p. 169.?Nieszkowski, Archiv. fiir die Naturk. Liv.-Ehstund Kurl., 1st ser., 1, 1857,p. 545.?Chapman, Canadian Jour., n. s., 8, 1863, p. 28; Expos. Min. and Geol.Canada, 1864, p. 136.?Salter, Mem. Geol. Surv. United Kingdom, dec. 11,1864, pi. 3; Mon. Brit. Tril., Pal. Soc. 1866, p. 145.?Woodward, CanadianNat., n. a., 6, 1871, p. 228.?Miller, Cincinnati Quart. Jour. Sci., 1874, pp.135, 136.?Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 51.?Novak,Sitz. d. k. bohm. GeseU. d. Wiss. Math. Naturw. CI. for 1884, 1885, p. 217.?Zittel, Handb. Pal., 2, Munich, 1885, p. 608.?Brogger, BDiang till K. Sven.Vet.-Akad. Handl., 11, No. 3, 1886, pp. 25, 26, 70; Afh. Sveriges Geol. Unders.,ser. C, 1886, p. 70.?Woodward, Quart. Jour. Geol. Soc. London, 44, 1888,p. 77.?Clarke, Jour. Morph., 2, 1888, pp. 254, 265.?MiUer, N. A. Geol. Pal.,1889, p. 530; Ist App. 1892, p. 704.?Walcott, Geol. Mag., dec. 4, 1, 1894, p.247.?Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 701.?Koken, Die Leitfos-silien, Leipzig, 1896, p. 26, fig. 16, 1, 2.?Beecher, Amer. Jour. Sci., 4th ser.,3, 1897, p. 104, pi. 3, fig. 18.?Schmidt, Mem. I'Acad. Imp. Sci. St. Peters-burg, 8th ser., 6, 1898, pp. 11, 12; 12, 1901, p. 4,?Jaekel, Zeits. d. d. geol.GeseU. , 53, 1901, p. 147.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34,No. 8, 1901, pp. 26, 37.?Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res.Indiana, 1908, p. 1051.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 290.?^Raymond, Trans, and Proc. Roy. Soc. Canada, 5, 3d ser.. see. 4,1912, p. 114. 76 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.ASAPHUS?Coutimied.Cryptonymus Eichwald, Obs. geog.-zool., etc., de Tril. (not 1840), 1825, p. 44;Zool. Specialis, pt. 2, Vilnae, 1830, p. 114.?Goldfuss, Neues Jahrb. f. Min.,etc., 1843, pp. 541, 554.?Salter, Mon. Brit. Tril., Pal. Soc, 186G, p. 147, 160.?Vogdes, Mon. Genera Zethus, Cybele and Cryptonymus, 1878, p. 15.?Zittel,Handb. Pal., 2, Munich, 1885, p. 609.Hemicry]3turus Green, Mon. Tril. N. A. 1832, p. 20.?Burmeister, Org. der Tril.,Berlin, 1843, p. 124; Org. TriL, 1846, p. 107.?Hawle and Corda, Abh. d. k.bohmischen Gesell. d. Wiss., 5, 1847, p. 69, pi. 4, fig. 37.Observation.?Few of the above references apply to Asaphua s. s.,but all areinchuled here for future research upon this and allied genera,. A.sAPHU.'? ALACER Billings. See Brachyaspis alacer.AsAPHUS ALPHA Raymond. See Basilicus marginalia.Asaphxis? astragolotes Green.Asaphus astragolotes Green Supp. 1, Mon. Trilobitea N. A., 1835, p. 11.Ordovician: Grenville Canal, Canada.Plastotype.?Cat. No. 25698, U.S.N.M.A.sAPHUs Barrandi Hall. See Ptychopyge ban-andi.Asaphus beta Raymond. See Isotelus be(a.Asaphus boliviensis D'Orbigny. See Megalaspis? l)o].ivien8ifl.Asaphus canadensis Cha])man. See Ogygites canadensis.Asaphus canalis Whitfield. See Isoteloides whilfieldi.Asaphus canalis Hall. See Isotelus canalis.Asaphus canalis Cleland. See Asaiihellus gyracanthus.Asaphus(?) caribouensis Walcott.Asaphus Caribouensis AValcott, Mon. U. S. Geol. Surv., 8, 1884, p. 98, pi. 12,figs. 7, 7a, b.Upper Pogonip: Ridge east of Hambiu'g Ridgo, Eureka District, Nevada.Cotype.~Qa\. No. 24652, U.S.N.M.Asaphus caudatus Green. See Dalmanites limulurus.Asaphus convexus Cleland. See S^inphysiu'us convexus.Asaphus cordieri Castelnau. See Dalmanites, limulurus.Asaphus corycceus Conrad. See Proetus corycceus.Asaphus? cryptunis Green.Asaphus cryplurus Green, Suppl. Mon. Tril()])ites North Amer., 1835, p. 18.Silurian: Moose River, Nova Scotia.Plastotype.?Qat. No. 4835, U.S.N.M.Asaph ii.s(?) curio.sus Billings.Asaphus? Curiosus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 318, fig. 305.Asaphus? curiosa Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 98, pi. 12, fig. 15.Canadian: Stanln-idge, Q\iebec (Beekmantown); Eureka District, Nevada(Pogonip).Plesiotype.?CAt. No. 24651, U.S.N.M. BIBLIOGEAPHIC L,IST OP GENERA AND SPECIES. 77AsAPHUs EDWARDSii Castelnaxi. See Dalmanites limuhmis.AsAPHUs EMOKYi Hall. Sec OnchometoptiH omoryi.A?APHU8 EXTANS Wiiichell. See Proelxis etouemaui.AsAPHus? EXTANS Hall. See Balhyurus exlaas.AsAPHUS GAMMA Raymond. See Basilicus margiualis.AsAPHUs GiGAs Dalman. See Isotelus gigas.AsAPHUs(?) GONiURUs BiUings. See Megalaspis goniurus.AsAPHUs HALLi Chapman. See Ogygites canadensis.AsAPHUS HiNCKsii Chapman. See Ogygites canadensis. - AsAPHUs HOMALONOTOiDES Walcolt. See Isoteloides homalouotoideaAhaphus huttoni Billings. See Basilicus hnttoni.AsAPHUs iLL^NoiDES BiUings. See Symphysurus iilajuuides.AsAPHus (Isotelus) iowensis Owen. See Isotelus iowensis.Asaphus(?) latimarginata Hall.Asaphus? latimarginata Hall, Pal. New York, 1, 1847, p. 253, pi. 66, figs, -la, b.Asaphus latimarginatus Chapman, Canadian Jour., n. s., 2, 1857, p. 47.Utica: Near Watertown, Jefferson County, New York.Observation.?Possibly the same as Ogygites canadensis (Chapman).Asaphus limulurus Green. See Dalmanites limidurus.Asaphus marginalis Collie. See Hemigyraspis coUieana.Asaphus marginalis Hall. See Basilicus marginalis.Asaphus maximus Clarke. See Isotelus maximus.Asaphus megalopthalmus Troost.Asaphus megalopthalmus Troost, Mem. Soc. Geol. France, 3, 1838, p. 94, pi. 11,figs. 1-5; 5th Geol. Rep. Tennessee, 1840, p. 57; 6th Geol. Rep. Tennessee,1841, p. 175 (nom. nud.).Silurian or Devonian: Perry County, Tennessee.Observation.?Not recognized. Probably refers to some Devouiau species ofPhacops.Asaphus megistos of authors. See Isotelus maximus.Asaphus micropleurus Green. Not recognized.Asajjhus raicroplouruK Green, Siippl. Mon. Tril. N. A., 1835, p. 21, cast No. 41.Trenton: Glens Falls, New York.Asaphus morrisii Billings. See Basilicus huttoni.Asaphus murchisoni Castelnau. See Isotelus gigas.Asaphus nqdostriatus Hall. See Balhyurus extans.Asaphus? notans Billings. See Brachyaspis notans.Asaphus obtusus Hall. See Onchometopus obtusus. 78 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Asaphiis(?) pelops Billings.Aeaphua pelops Billings, Pal. Fosa., 1, Geol. Siirv. Canada, 1865, p. 317, fig.304a, b.Canadian (Beekmantown): Bedford, Missiaquoi County, Quebec.AsAPHUS PLANUS Dalman. See Isotelus gigas.AsAPHUs PLATYCEPHALUs Stokes. Sco Isotelus gigas.AsAPHUS PLATYCEPHALUS Billlnga. See Isotelus latus and Brachyaspis altilis.Asaphus(?) quadraticaudatus Billings.Asaphus quadraticaudatus Billings, Pal. Foss., 1, (ieol. Surv. Canada, 1SG5, p.272, fig. 258.Chazyan (Quebec-N. P.): Table Head and four miles northeast Portland Creek,Newfoundland.Asaphus Romingeri Walcolt. See Basilicus romingeri.Asaphus sus^ Whitfield. See Onchometopus susse.Asaphus stokesii Murchison. See Proetus stokesii.Asaphus tetragonocephalus Green.Asaphus tetragonocephalus Green, Amer. Jour. Sci., 25, 1834, p. 335; Suppl.Mon. Tril. N. A., 1835, p. 12, cast 38.Ordovician(?): ?Newport, New York.Plastotype.?G&t. No. 4948, U.S.N.M.Observation.?The type is a specimen made up of two fragments of unidentifiedCambrian trilobites, probably Olenus.Asaphus? trentonensis Conrad. See Amphilichas trentonensis.Asaphus trla.ngulatus Whitfield. See Isoteloides homalonotoides.Asaphus ulrichi Miller. See Basilicus romingeri.Asaphus vetustus Hall. See Basilicus vetustus.Asaphus (Isotelus) vioilans Meek and Worthen, See Nileus vigilans.Asaphus wetherilli Green. See Dalmanites limulurus.Asaphus wisconsinensis Walcott. See Basilicus romingeri.ASCOCERAS Barrande. Genotype: A. bohemicum Barrande.Ascoceras Barrande in Haidinger's Mitthcil. d. Fr. d. Naturw., 3, 1847, p. 264-269;Neues Jahrb. f. Min., etc., 1854, p. 11. pi. 1, fig. 13a, b.?Pictet, Traite dePal., 2d ed., 2, 1854, p. 639.?Barrande, Neues Jahrb. f. Min., etc.. 1855, pp.257, 260, pi. 3, figs. 1-10, p. 320; Bull. Soc. Geol. France, 2d ser., 12, 1855,p. 160, pi. 5, figs. 16-28.?Woodward, Mem. Mollusca, pt. 3, 1856, p. 450.?Billings, Canadian Nat. Geol., 2, 1857, p. 137, fig. 9.?Barrande, Neues Jahrb.f. Min., etc., 1860, p. 653; Syst Sil. du Centi-e Boheme, 2, pt. 1, 1867, p. 334.?Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1881, p. 26, fig. 3.?Blake, Mon.British Foss. Cephalopoda, 1882, p. 60.?Zittel, Handb. Pal., 2, Munich,1884, p. 372.?Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 279; 23, 1888,p. 483.?Lindstrom, Geol. Mag., dec. 3, 5, 1888, p. 532.?Foord, Cat. Foss.Ceph. British Mus., 1, 1888, p. 246; 2, 1891, p. 387.?Miller, N. A. Geol. Pal.1889, p. 432.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 23, No. 12, 1890,p. 14.?Koken, Die Leitfossilien, Leipzig, 1896, p. 49, text fig. 32, fig. 3.?Hyatt, Zittel-Eastman Tcxtb. Pal., 1, 1900, p. 516; 2d ed., 1913, p. 596. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 79Ascoc'oras anticostiense Billings.Ascoceras newberryi Billings (part), Pal. I-'oys.. 1, Gcol. Suiv. Canada, 1865, p.163, fig. 118b (adv. sheets, 1862).Ascoceras Anticostiense Billings, Cat. Sil. Foss. Anticosti, Cicol. Surv. ("anada,1865, p. 60 (loc. ref.).Gamachian (Ellis Bay): Gamache Bay, Auticosti.Ascoceras boreale Parks.Ascoceriis boreale Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 34.Mohawkian or Richmond : Shamattawa RiA^er, Manitoba.Ascoceras canadense Billings. See Billingsites canadensis.Ascoceras costulatum ^\^liteavep.Ascoceras costulatum AVhiteaves, Canadian Rec. Sci., 6, 1895, p. 394; Pal. Foss.,Geol. Surv. Canada, 3, pt. 3, 1897, p. 215, pi. 22, fig. 1.Black River or Richmond: Lake Winnipeg, Canada.Ascoceras gibberosum Sardeson.Ascoceras gibberosum Sardeson, Bull. xMinnesota Acad. Nat. Sci., 4, 1896, p. 102,pi. 6, figs. 8-10.Ozarkian (Oneota) : Dresbach, Minnesota.Ascoceras indianense Newell.Ascoceras Indianensis Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 484,figs.Niagaran: Delphi, Indiana.Ascoceras newberryi Billings.Ascoceras Newberryi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 163,fig. 148a (adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, pp. 23, 59 (loc. ref.).?Newell, Proc. Boston Soc. Nat. Hist., 23, 1888,p. 484.Richmond (English Head and Charleton) and Ciamachian: English Head, etc.,Anticosti.Niagaran: Delphi, Indiana (Newell).Ascoceras newberryi Billings (part). See Ascoceras anticostiense.Ascoceras southwelli Worthen.Ascoceras southwelli Worthen, Geol. Surv. Illinois, 8, 1890, ]>. 151, ])1. 27, figs.2, 2a.Niagaran: Port Byron, Illinois.Ascoceras townsendi AVliitcaves.Ascoceras Townsendii Wliiteaves, Pal. Foss., Geol. Sui*v. Canada, 3, pt. 1, 1884,p. 41, pi. 6, figs. 4, 4a; pt. 2, 1895, p. 103.Niagaran (Guelph): Durham, Ontario.ASCODICTYON Nicholson and Etheridgc, Jun.Genotype: A. stellatum Nicholson and Etheridge, Jun.Aecodictyon Nicholson and Etheridge, Jun., Ann. Mag. Nat. Hist. 4th ser., 19,1877, p. 463.?Vine, Quart. Jour. Geol. Soc. London, 37, 1881, p. 618; 38,1882, p. 52; Rep. 53d Meeting Brit. Assoc. Adv. Sci., 1884, p. 185; Proc.Yorkshire Geol. Polyt. Soc, 9, 1887, p. 183; 12, 1892, p. 86.?Miller, N. A.Geol. Pal., 1889, p. 293.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 367.?Simpson, 14th Rep. State Geol. New York for 1894, 1897, p. 603.?Nicklea 80 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.ASCODICTTON?Contimied.and Baesler, Bull. U. S. Geol. Siirv., 173, 1900, pp. 19, 172.?Ulrich andBassler, Smiths. Misc. Coll., 45, 1904, p. 285.?Baeeler, Bull. U. S. Geol.Siirv., 292, 1906, p. 14.?Grabau and Shimer, N. A. Index Fossils, 1, 1907,p. 117.AscoDicTYON RADIANS Vine. See Vinella radiciformis.AscoDicTYON RADiciFORME Vine. See Vinella radiciformis.Ascodictyon siluriense Vine.Ascodictyon stellatum Vine (not Nicholson and Etheridge), Quart. Jour. Geol. Soc.London, 37, 1881, p. 618.Ascodictyon stellatum var. siluriense Vine, Quart. Jour. Geol. Soc. London, 38,1882, p. 52, figs. 1, 2; Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 81, fig. 7;Proc. Yorkshire Geol. and Polytech. Soc, 9, 1887, p. 184, pi. 12, fig. 6.Ascodictyon siluriense Vine, Proc. Yorkshire Geol. Polytech. Soc, 12, 1892, p.88, pi. 2, fig. 1.?Ulrich and Bassler, Smiths. Misc. Coll., 45, 1904, p. 286, pi.68, figs. 11, 12.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 14, pi. 4, figs.6-8.?Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 260, pi.46, fig. 2.Silurian: Shropshire, England (Weulock); Lockport, etc, New York; Ontario,Canada (Rochester); Waldron, Indiana; Newsom, Tennessee (Waldron);Island of Anticosti (Jupiter River).Helderbergian (Keyeer): Cash Valley, Maryland.Plesiotypes.?C&t. Nos. 43135, 43138, U.S.N.M.AscoDicrs-ON STELLATUM Vine. See Ascodictyon siluriense.Ascodictyon stellatum siluriense Vine. See Ascodictyon siluriense.ASPIDOPORA Ulrich. Genotype: Aspidopora areolata Ulrich.Aspidopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 155.?Miller,N. A. Geol. Pal., 1889, p. 293.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 373;Geol. Minnesota, 3, 1893, p. 254.?Simpson, 14th Ann. Rep. State Geol. NewYork for 1894, 1897, p. 584.?Nickels and Bassler, Bull. U. S. Geol. Surv., 173,1900, p. 29.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 130.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 740.Aspidopora areolata Uhlch.Aspidopora areolata LUrich, Jour. Cincinnati Soc Nat. Hist., 6, 1883, p. 164, pi.7, figs. 2-2c.Monticulipora areolata J. F. James, ibid., 16, 1894, p. 183.Eden (Fulton): Cincinnati, Ohio, and vicinity.Cotypes.?Cut No. 43632, U.S.N.M.Aspidopora calycula (.James).Lichenalia? calycula James, Cat. Foss. Cincinnati (Jroup, 1871 (not defined).Cha-tetes? calyculus James, Introd. Cat. Foss. Cincinnati Group, 1875, p. 1.Monticulipora (Diplotrypa) calycula Nicholson, Genus Monticulipora, 1881, p.165, pi. 4, figs. 4-4b.Praeopora calycula Ulrich, Jour. Cincinnati Soc. Nat. Hiet., 6, 1883, p. 165.Monticulipora calycula James and James, Jour. Cincinnati Soc. Nat. Hist., 10,1888, p. 167.?J. F. James, ibid., 16, 1904, p. 184.Aspidopora calycula Nickles and Bassler, Bull. U. S. Geol. SurA-., 173, 1900, p.173.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 16, pi. 1, figs. 8-10.Trenton (Upper): Covington, Kentucky, and vicinity. BIBLIOCiRAPHIC LIST OF GENEKA AND SPECIES. 81Aspidopora eccentrica (James).Monticulipora (Heterotrypa?) eccentrica James, Paleontologist, No. G, 1882, p. 48;No. 7, pi. 1, figs. 6, 6a.Monticulipora eccentrica Jamea and James, Jour. Cincinnati Soc. Nat. Hist., 10,1888, p. 167, pi. 2, figs. 2a-c.?J. F. James, ibid., 16, 1894, p. 185.Aspidopora eccentrica Ulrich, Geol. Minnesota, 3, 1893, p. 255.?Bassler, Proc.U. S. Nat. Mus., 30, 1906, p. 17, pi. 2, figs. 8-12: pi. 5, figs. 7, 8.Eden (Southgate): Cincinnati, Ohio, and vicinity.Aspidopora elegantula (Ulrich).Aspidopora elegantula Ulrich, Geol. Minnesota, 3, 1893, p. 256, pi. 17, figs. 13-21. ? Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 162-164(p. 584).?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 130, fig. 186e.Trenton (Prosser): Kenyon and St. Paul, Minnesota.Cotypes?Cat. No. 45499, U.S.N.M.Aspidopora uewberryi (Nicholson).Chajtetes Newberryi Nicholson, Pal. Olxio, 2, 1875, p. 212, pi. 22, figs. 4, 4a.Monticulipora (Prasopora) Newberryi Nicholson, Genus Monticulipora, 1881, p.212, pi. 4, figs. 1-le.Prasopora? newberryi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 165.Aspidopora newberryi Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, p. 91.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 130.Monticulipora newberryi James and James, Jour. Cincinnati Soc. Nat. Hist., 10,18S8, p. 164.?J. F. James, ibid., 16, 1894, p. 179.Eden (Economy): Cincinnati, Ohio, and vicinity.Aspidopora parasitica (Ulrich).Aspidopora parasitica Ulrich (part), 14th Ann. Rej). Geol. Nat. Hist. Surv. Minne-sota, 1886, p. 90; Geol. Minnesota, 3, 1893, p. 255, pi. 17, figs. 26-32.?J. F.James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. ISO.Black River (Decorah): Minneapolis, St. Paul, and Fountain, Minnesota.Cotypes.?Cat. No. 44051, U.S.N.M.Aspidopora parmula (Foerste).Prasopora parmula Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 170; 3, 1888,pi. 15, fig. 14.Aspidopora parmula Foerste, Geol. Surv. Oliio, 7, 1895, p. 600, pi. 28, fig. 14,Upper Medinan (Brassfield): Dayton, and Clinton County, Ohio.As])idopora parmula fenestelliformis Foerste.Aspidopora parmula var. fenestelliformis Foerste, Geol. Surv. Ohio, 7, 1895, p. 600.Upper Medinan (Brassfield): Dayton, Ohio.AsTERiAS ANTHONii Dana. See Petraster jamesi.AsTERiAs ANTiQUA Troost. See Mesopalseaster antiqua.AsTERiAS ANTiQUATA Locke. Sec Promopalseaster speciosa.AsTERiAs (fossil) Graham, Anth(my, and James. See Petraster americana.AsTERiAS MATUTiNA Hall. See Hudsonaster matutina.AsTR^oPHYLLUM Nlcholson and Hinde. See Strombodes Schweigger.AsTR^opoRA VETUSTA D'Orbigny. See Protarea vetusta.84243??Bull. 02-15 (! 82 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.ASTRiEOSPONGIA Roemer. Genotype: Blumenbachium meniscus Roemer.Blumenbacliium Roemer (not Konig, 1820), Neues Jalirb. f. Min., etc., 1848, pp.680, G82.Astrseospongia Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 13; Cin-cinnati Quart. Jour. Sci., 1, 1874, p. 248.?Zittel, Handb. Pal., 1, Munich,1879, p. 185.?Roemer, Leth. geog., 1, Theil, Leth. Pal., Erste Lief., 1880,p. 313.?Hinde, Men. Brit. Foss. Sponges, Pal. Soc, 1888, p. 133.?Miller,N. A. Geol. Pal., 1889, p. 154.?Koken, Die Leitfossilien, Leipzig, 1896, p.342.?Zittel-Eastman Textb. Pal., 1, 1900, p. 56?Grabau and Shimer, N. A.Index Fossils, 1, 1906, p. 17.?Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 62.Astrseospongia meniscus (Roemer).Blumenbacliium meniscus Roemer, Neues Jahrb. Min., 1848, p. 683, pi. 9,fig. i._Oswald, Zeits. d. d. geol. Gesell., 2, 1850, p. 83.Astrseospongia meniscus Roemer, Sil. Faima West. Tennessee, 1860, p. 14, pi. 1,figs. 6, 6a-d.?Safford, Geol. Temiessee, 1869, pp. 311, 320, pi. 5 (IT), figs.la-e.?Roemer, Cincinnati Quart. Joiu". Sci., 1, 1874, p. 248; Leth. geog.,Leth. Pal., 1, Atlas, 1876, pi. 9, fig. 2.?J. W. Hall and Gaertner, 30th Rep.New York State Mus. Nat. Hist., 1878, pp. 111-116, pi. 3, pp. 1-6.?Roemer,Leth. geog, 1, Theil., Leth. Pal., Erste Lief., 1880, p. 314, pi. 9, figs. 2a-2e.?Hinde, Cat. Foss. Sponges Brit. Mus., 1883, p. 148.?Miller, N. A. G?ol.Pal., 1889, p. 154, text fig. 90.?Foerste, Jour. Geol., 11, 1903, p. 713, (loc.occ.).?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 18, fig. 27.Niagaran: Brownsport, Perryville, etc., Tennessee (Brownsport); Louisville,Kentucky (Louisville).ASTRASPIS Walcott. Genotype: A. desiderata Walcott.Astraspis Walcott, Bull. Geol. Soc. Amer., 3, 1892. p. 166.Astraspis desiderata Walcott.Astraspis desiderata Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 166, pi 3, figs.6-14, pi. 4, figs. 1-4.Black River (Harding): Canyon City, Colorado.Astrea fungiformis Owen. Not recognized.Astrea fungiformis Owen, Geol. Exi^l. Iowa. Wisconsin, and Illinois, 2d ed., 1844,p. 78, pi. 14, fig. 11.Niagaran: Iowa and Wisconsin.Astrea? gigas Owen. See Strombodes gigas.Astrea mamillaris Owen. See Strombodes mamillaris.AsTREOPORA ORGANUM D'Orbigny. See Syringophyllum organum.AsTRocERiuM Hall. See Favosites Lamarck.AsTROCERiuM coNSTRicTUM Hall. See Favosites constrictum.AsTRocERiuM PARAsiTicuM Hall. See Favosites hisingeri.AsTRocERiUM PYRiFORME Hall. See Favosites pyriformis.AsTRocERiUM VENUSTUM WTiitfield. See Favosites hisingeri.ASTROCONIA Sollas. Genotype: A. granti Sollas.Astroconia Sollas, Quart. Jour. Geol. Soc. London, 36, 1881, p. 254.?Miller, N. A.Geol. Pal., 1889, p. 154. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 83Astroconia granti Sollas.Astrocouia Granti Sollas, Quart. JoTir. Geo!. Soc. London, 37, 1881, pp. 254, 255,figs. 1-11.?Rauff, Palyeontographica, 40, 1894, p. 278, fig. 58.Niagaran dolomite: Hamilton, Ontario.AsTROCRiNiTES Conrad. See Rfariacrimis Hall.AsTROcKiNiTES PACHYDACTYLUS Coiirad. Scc Mclocriniis pachydactyliis.ASTROCYSTITES WTiiteavos. Genotype: A. ottawaeiisis Wliiteaves.Astrocystites Wliiteaves, Canadian Rec. Sci., 7, 1897, p. 287.?Miller, N. A.Geol. Pal., 2d App., 1897, p. 734.Steganoblastiis Whiteaves, Canadian Rec. Sci., 7, 1897, p. 305 (proposed to re-place Astrocystites which was believed to be too much like AsterocystisHaeckel).?Bather.JTreatise onZool., pt. 3, Echinoderma, London, 1900, p.209, fig. 7.?Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 320.?Springer, Zittel-Eastman Textl). Pal., 1, 1913, p. 160.A'strocystites ottawaensis ^^^liteaves.Astrocystites Ottawaensis W^iiteaves, Canadian Rec. Sci., 7, 1897, p. 287, figs. 1-3.Steganoblastus canadensis (in error for ottawaensis) Whiteaves, Canadian Rec.Sci., 7, 1898, p. 396.Steganoblastus ottawaensis Bather, Treatise on ZooL, pt. 3, Echinoderma, London,1900, p. 210, fig. 7.?Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4,1906, p. 316, figs. 21, 21a, 22; p. 321, figs. 23, 24.Trenton (Curdsville): Ottawa, Ontario.Astroporites Lambe. Genotype: A. ottawaensis Lambe.Astroporites Lambe, Canadian Rec. Sci., 7, 1896, p. 1.?Nickles and Bassler,Bull. U. S. Geol. Surv., 173, 1900, p. 174.Astroporites ottawaensis Lambe.Astroporites Ottawaensis Lambe, Canadian Rec. Sci., 7, 1896, p. 1, pi. 1. ? Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. J73, 174.?Springer, Mem. Geol. Surv. Canada, loP, 1911, p. 46.Trenton (Curds\'ille) : Hull near Ottawa, and Kirkfield, Ontario; Jrerccr County,Kentucky.Observation.?This genus and species, originally described as a bryozoau, isfounded tipon the attached basal disk of some crinoid.AsTYLOMANON Rauff. See Pahieomanon Roemer.AsTYLOMANON CRATERA Rauff. See Palajomanon cratera.A.STYLOMANON CRATERA ARYBALLiuM Rauff. Sce Palseomanou cratera.AsTYLOMANON CRATERA BALANTiuM Rauff. See Palseomanon cralora.AsTYLOMANON CRATERA CANTHARiuM Ratiff. See Palseomanou cralera.AsTYLOMANON CRATERA CYLix Rauff. See Palseomanon cratera.AsTYLOMANON CRATERA LECYTHiuM Rauff. Seo Palaeomanon cratera.AsTYLOMANON CRATERA PATERA Rauff. See Palseomanon cratera.AsTYLOMANON CRATERA POTERiUM Rauff. Soo Palseomanon cratera.AsTYLOMANON CRATERA PROMI8CUUM Ratiff. Seo Palscomanon cratera. 84 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.AsTYLoMANON CRATERA PROTOTYPUM Rauff. See Palseomanoii cratera.AsTYLOMANON PLEURiEXCAVATUM RanS. See Palaeomanon pletiriexcavaturn.AsTYLOMANON VERRUC08UM Raiiff. See Palseomanon vermcosum.AsTYLOMANON VERRUcosuM BULLiFERA Rauff . See Palseomanon vermcosum btiUi-fera.ASTYLOSPONGIA Roemer. Genotype: Siphonia prsemorsa Goldfuss.Astylosi^ongia Roemer, Sil. Fauna West Tennessee, 1860, p. 7; Cincinnati Quart.Jour. Sci., 1, 1874, p. 31.?Zittel, Ann. Mag. Nat. Hist., 4th ser., 20, 1877,p. 501; Neues Jahrb. Min., Geol. Pal., 1877, p. 353; Abh. math.-phys. ClasseAkad. Wiss., 13, 1 Abth., 1878, p. 44.?Martin, Arch. Ver. Freun. Naturg.Mechlenbnrg, Jahrg., 31, 1878, pp. 2, 18.?Zittel, Ilandb. Pal., 1, 1879, p.172.?Roemer, Leth. geog., 1, Theil. Leth. Pal., Erste Lief., 1880, p. 307.?Hinde, Cat. Foss. Sponges Brit. Mus., 1883, p. 91.?Zittel, Ann. Mag. Nat.Hist., 5th ser. 14, 1884, p. 271; Neues Jahrb. f. Min., Geol. Pal., 2, 1884, p.75.?James, J. F., Jonr. Cincinnati Soc. Nat. Hist., 9, 1887, pp. 246, 247.?Hinde, Mon. Brit. Foss. Sponges, Palaeont. Soc, 1888, p. 112.?Miller, N.A.Geol. Pal., 1889, p. 154.?James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14,1891, p. 55.?Rauff, Palteontographica, 40, 1894, p. 289.?^James, Amer. Nat.,29, 1895, p. 543.?Koken, Die Leitfossilien, 1896, p. 337.?Zittel-EastmanTextb. Pal., 1, 1900, p. 50; 2d ed., 1913, p. 55.?Grabau and Shimer, N. A.Index Fossils, 1, 1906, p. 14.AsTYLOSPONGiA (Pal^omanon) BURSA Hall. See PalcBomanon bursa.Astylospongia?? Christiana Meek and Worthen.Astylospongia?? Christiana Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p.344, pi. 5, figs. 3a-c.Niagaran: Carroll County, Illinois.Astylospongia gregaria James. See Hindia gregaria.Astylospongia imbricato-articulata (Roemer).Siphonia imbricato-articulata Roemer, Neues Jahr. Min. Gool., Pal., 1848, p. 685.Astylospongia imbricato-articulata Roemer, Sil. Fauna West Tennessee, 1860,p. 12, pi. 1, figs. 5, 5a; Cinciimati Quar. Jour. Sci., 1, 1874, p. 191.?Hall,28th Rep. New York State Mus. Nat. Hist., Mus. ed., 1879, p. 104; 11th Ann.Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 224.?Foerste, Joui'. Geol., 11,1903, p. 714 (loc. occ).Niagaran: Various localities in Decatur and Perry Counties, Tennessee (Browns-port); Louisville, Kentucky (Louisville).Astylospongia inciso-lobata Roemer. See Caryomanou iucisolobatum.Astylospongia inoknata Hall. See Hindia splueroidalis.Astylospongia parvula Billings.Astylospongia parvula Billings, Geol. Vermont, 2, 1861, p. 956; Rep. Econ. Geol.Vermont, 1862, p. 956; Pal. Foss., 1, Geol. Sur\\ Canada, 1863, p. 20. (Ad-vance sheets, 1861.)Trenton: OttaAva, Ontario.Astylospongia prsemorsa (Goldfuss).Siphonia prajmorsa Goldfuss, Petref. Germ., 1826, p. 17, pi. 6, fig. 9a.Astylospongia pnemorsa Roemer, Sil. Fauna West Tennessee, 1860, p. 8, pi. 1,figs. 1, la-e.?Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 377, fig. 352? BIBLIOGRAPHIC LfST OP GENERA AND SPECIES. 85Astylospougia praemorsa?Coutinued.Roemer, Oincinuati Quart. Jour. Sci., 1, 1874, p. 32.?Meek and Worthen,Geol. Surv. Illinois, 6, 1875, p. 499, pi. 25, figs. 2, 2a.?Roemer, Letli. geog.,1, Theil, Leth. Pal., Erste Lief, 1880, p. 307, pi. 9, figs, la-c?Miller, N. A.Geol. Pal., 1889, p. 154, fig. 91.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 224,fig. 3.?Rauff, Pateontographica, 40, 1894, j). 309, pi. 11, fig. 3.?Walker,Jour, and Proc. Hamilton Assoc, 11, 1895, p. 87, fig. 5.?Grabau and Shimer,N. A. Index Fossils, 1, 1906, p. 14, fig. 22.Niagaran: West Tennessee, and many other localities.Plesioti/pe.?Cat. No. 49719, U.S.N.M.Observation.?A very complete bibliography of this species is given by Rauff,1894.AsTYLosPONGiA PR.EMORSA Hall. See Astylospongia prsemorsa pusilla.AsTYLOSPONGiA PR^MORSA Roemer. See Paleeomanon verrucosum.Astylospongia pr^morsa var. nuxmoschata Hall. See Caryospongia juglananuxmoschata.Astylospongia praemorsa pusilla Rauff.Astylospongia praemorsa Hall, Trans. Albany Inst., 4, 1863, p. 228; 28th Rep.New York State Mus. Nat. Hist., doc. ed., 1875, pi. 3, figs. 4-14 (Museum ed.,1879); 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 222, pi. 2,figs. 4-11, 14.Astylospongia praemorsa var. pusilla Rauff, Pala^ontographica, 40, 1894, p. 309.Niagaran (Waldron): Waldron, Indiana; Newsom, Tennessee.Plesiotypes.?Gsit. No. 46547, U.S.N.M.Astylospongia Roemeri Hinde. See Caryomanon roemeri.Astylospongia stellatim-sulcata Roemer. See Carpomanon stellalim-sulcatum.Astylospongia subrotundus James. See Hindia eubrotunda.Astylospongia tumidus James. See Pasceolus darwini.Atactopora Ulrich (part). See Atactoporella Ulrich.ATACTOPORA Ulrich. Genotype: Atactopora hirsuta Ulrich.Atactopora Ulrich (part). Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 119; Jour.Cincinnati Soc. Nat. Hist., 5, 1882, p. 154; 6, 1883, p. 245.?Miller, N. A. Geol.Pal., 1889, p. 293.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 377; Zittel'sTextb. Pal. (Engl, ed.), 1896, p. 278.?Simpson, 14th Ann. Rep. State Geol.New York for 1894, 1897, p. 563.?Nickles and Bassler, Bull. U. S. Geol. Surv.,173, 1900, p. 31.?Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, pp. 24,31.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 334.Atactopora augularis Ulrich and Bassler.Atactopora angularis Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 32, pi. 8,figs. 10-12.Richmond (Waynesville) : Waynesville, OMo.Holotype.?Csit. No. 43193, U.S.N.M.Atactopora hirsuta Ulrich.Atactopora hirsuta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. ILO, pi. 12,figs. 3-3b;6, 1883, p. 245, pi. 12, figs. 1, la.?Ulrich and Bassler, Smiths.Misc. Coll., 47, 1904, p. 31, pi. 8, fig. 14.Eden and Maysville (Fairview): Covington and Newport, Kentucky; Cinciimuti,Ohio.HoloUjpe.?CAt. No. 43619. U.S.N.M. 86 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Atactopora intermedia C'umings and Galloway.Atactopora intermedia Gumings and Galloway, 37tli Ann. Rep. Dep. Geol. Nat.Res. Indiana, 19i;}, p. 73, pi. 4, figa. 2, 2a; pi. 5, figs. 1-ld.Eden (McMicken): Big Four Railroad, near Guilford, Indiana.Atactopora inacnlata Ulrich.Atactopora maculata Ulricli, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 121,pi. 12, figs. 2-22; 6, 1883, p. 245, pi. 12, figs. 2, 2a; Zittel's Textb. Pal. (Engl.ed.), 1896, fig. 466 (p. 278).?Ulricli and Bassler, Smiths. Misc. Coll., 47,1904, p. 31, pi. 8, fig. 13.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 333,fig. 483.Maysville (Fairmount): Cincinnati, Ohio, and vicinity.Holotype.?Q&t. No. 43619, U.S.N.M.Atactopora multigranosa Ulrich. See Atactoporella multigranosa.Atactopora mundxjla Ulrich. See Atactoporella mundula.Atactopora ortoni Ulrich. See Atactoporella ortoni.Atactopora septosa Ulrich. See Amplexopora septosa.Atactopora subramosa Ulrich. See Heterotrypa subramosa.Atactopora tenella Ulrich. See Atactoporella tenella.ATACTOPORELLA Ulrich. Genotype: Atactoporella typicalis UlrichAtactopora Ulricli (part). Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 119.Peronopora Nicholson (part), Genus Monticulipora, 1881, p. 215.Atactoporella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 247.?Miller,N. A. Geol. Pal., 1899, p. 293.?Ulrich, Geol Siirv. Hlinois, 8, 1890, p. 370;Geol. Minnesota, 3, 1893, p. 222; Zittel's Textb. Pal. (Engl, ed.), 1896, p.272.?Simpson, 14th Ann. Rep. State. Geol. New York for 1894, 1897,p. 585.?Nickles and Bassler, Bull. U. S. Geol. Sui-v., 173, 1900, p. 28.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 127.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 740.?Bassler, Zittel-EastmanTextb. Pal., 1913, p. 331.Atactoporella crassa Ulrich. See Homotrypella hospitalis crassa.Atactoporella Insueta Ulrich.Atactoporella insueta Ulrich, Geol, Minnesota, 3, 1893, p. 224, pi. 15, figs. 1.3-15; pi.18, figs. 5-8.Black River (Decorah): Minneapolis, St. Paul, and i'ounlain, ^Minnesota.Cotypes.?Q'i^t. No. 43805, U.S.N.M.Atactoporella multigranosa (Ulrich).Atactopora multigrano.sa Ulrich, Jour. Cincinnati Soc. Nat. HLst., 2, 1879, p. 122,pi. 12, figs. 1, la.Atactoporella multigi'anosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 254, . pi. 12, figs. 8, 8a.?J. F. James, ibid., 18, 1895, p. 80.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 7G9, pi. 7, figs. 2, 2a.Mays\-ille (Fairmount-CoiTyville): Hamilton, Morrow, and Cincinnati, Ohio;southeastern Indiana.Holotype.?C&t. No. 43626, U.S.N.M.Atactoporella mundula (Ulrich).Atactopora mundula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 123, pi.12, figs. 4, 4a.. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 87Atactoporella mundula?Continued.Atactoporella mundula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 252,pi. 12, figs. 6, 6a.?J. F. James, ibid., 18, 1895, p. 80.?Cuminga, 32d Ann.Rep. Dep. Geol. Nat Res. Indiana, 1908, p. 770, pi. 7, figs. 3, 3a; pi. 26, fig. 6.Maysville (Fairmount): Covington, Kentucky, and Cincinnati, Ohio.Holotype.?Cat. No. 43623, U.S.N.M.Atactoporella newportensis Ulrich.Atactoporella newportensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p.250, pi. 12, figs. 4-4b.?Miller, N. A. Geol. Pal., 1889, fig. 450, p. 29.?Cum-ings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 770, pi. 7, fig. 4;pi. 26, fig. 7.Monticulipora newportensis James and James, Jour. Cincinnati Soc. Nat. Hist.,10, 1888, p. 183.?James, ibid., 16, 1894, p. 206.Eden (Economy): Newport, Kentucky.Cotypes.?C&t. No. 43627, U.S.N.M.Atactoporella ortoni (Nicholson).Chaetetes Ortoni Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 513, pi.29, figs. 15-15b; Pal. Ohio, 2, 1875, p. 211, pi. 22, figs. 3-3b.Atactopora ortoni Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 120 (gen.ref.).Monticulipora (Peronopora?) Ortoni Nicholson, Genus Monticulipora, 1881, p. 228,pi. 3, figs. 4-4d.Atactoporella ortoni Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 256, pi. 12,figs. 7, 7a.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.771, pi. 7, figs. 5, 5a; pi. 26, fig. 11.Monticulipora ortoni James and James, Jour. Cincinnati Soc. Nat. Hist., 1888,11, p. 22.?James, ibid., 18, 1895, p. 79.Maysville (Bellevue and Corryville): Cincinnati, Oliio, and vicinity.Plesiotype.?CsLt. No. 43629, U.S.N.M.Atactoporella ramosa Ulrich.Atactoporella ramosa Ulrich, Geol. Minnesota, 3, 1893, p. 226, pi. 20, figs. 22-27.Black River (Decorah): Cannon Falls, Minnesota.Cotypes.?Cat. No. 43500, U.S.N.M.Atactoporella schucherti Ulrich.Atactoporella schucherti Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 251,pi. 12, figs. 5-5b.?J. F. James, ibid., 18, 1895, p. 80.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 772, pi. 7, figs. 6, 6a.Richmond (Waynesville-Whitewater): Oxford, Waynesville, etc., Ohio; Rich-mond and Versailles, Indiana.Tlolotype.?Cut. No. 43628, U.S.N.M.Atactoporella tenella (Ulrich).Atactopora tenella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 123, pi. 12,figs. 5, 5a.Atactoporella tenella Ulrich, ibid., 6, 1883, p. 246.?J. F. James, ibid., 18, 1895,p. 80.Maysville (Fairmount): Cincinnati, Ohio, and vicinity.Hohtype.?Cat. No. 43624, U.S.N.M.Atactoporella typicalis (Ulrich).Atactoporella typicalis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 248,pi. 12, figs. 3-3d.?J. F. James, ibid., 18, 1895, p. 80.? Ulrich, Zittel's Textb.Pal. (Engl, ed.), 1896, p. 272, fig. 450.?Simpson, 14th Ann. Rep. State 88 BULLETIN 92j UNITED STATES NATIONAL MUSEUM.Atactoporella typicalis?Continued.Geol. New York for 1894, 1897, p. 685, figs. 165-167.?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 128, fig. 186b.?Bassler, Zittel-EastmauTextb. Pal., 1913, p. 332.Eden (Economy): Covington, Kentucky, and vicinity.Cotupes.?Cat. No. 43625^ U. S.N.M.Atactoporella typicalis praecipta Ulrich.Atactoporella typicalis var. prsecipta Ulrich, Geol. Minnesota, 3, 1893, p. 223,pi. 15, figs.16, 17, pi. 18, figs. 1-4.Black River (Decorah): Minneapolis, St. Paul, and Fountain, Minnesota.Cotypes.?C3it. Nos. 43806, 43872, U.S.N.M.Ataxiacrinus Lyon. See Anomalocrinus Meek.Ataxocrinus Bather. See Anomalocrinus Meek.Atelocystis Haeckel. See Ateleocystites Billings.ATELEOCYSTITES Billings. Genotype: A. huxleyi Billings.Ateleocystites Billings, Geol. Surv. Canada, Can. Org. Rem., dec. 3, 1858, pp.72, 73.?Chapman, Expos. Min. Geol. Canada, 1864, p. 110.?Salter, Cat.Camb. Sil. Foss., 1873, p. 128.?Zittel, Handb. Pal., 1, Munich, 1879, p.413.?Woodward, Geol. Mag., dec. 2, 7, 1880, p. 194.?Walther, Palaeonto-gi-aphica, 32, 1886, p. 193.?Miller, N. A. Geol. Pal., 1st App., 1892, p. 674.Ateleocystis Haeckel, Amphorideen u. Cystoideen, 1896, p. 41, pi. 2, figs. 10-12.Enoploura Wetherby, Jour. Cincinnati Soc. Nat. Hist., 1, 1879, p. 163.?Jaekel,Zeits. d. d. Geol. Gesell., 52, 1900, p. 668.?Bather, Treatise on Zool., pt. 3,Echinoderma, London, 1900, p. 51 (Genotyjie Anomalocystites balanoidesMeek).Anomalocystites in part of authors.Ateleocystites balanoides (Meek).Anomalocystites (Ateleocystites?) balanoides Meek, Amer. Jour. Sci. Arts, 3dser., 3, 1872, p. 423; Geol. Surv. Ohio, 1, pt. 2, 1873, p. 41, pi. 3, bis. fig. 6a-c.Enoploura balanoides Wetherby, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p.162, pi. 7, figs, la-g; p. 164, pi. 1, figs. 1-5.Ateleocystites balanoides Woodward, Geol. Mag., dec. 2, 7, 1880, p. 198, pi. G,figs. 5-15.Anomalocystites balanoides Miller, N. A. Geol. Pal., 1889, p. 224, fig. 247.Placocystis balanoides Haeckel, Amphorideen u. Cystoideen, 1896, pi. 2, figs. 5-7.Placocystis Crustacea Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 39,figs. 1, 2.Enoploura Crustacea Bather, Treatise on Zool., pt. 3, Echinoderma, London,1900, p. 51.MaysvUle (Corryville): Cincinnati, Ohio, and vicinity.Ateleocystites huxleyi Billings.Ateleocystites Huxleyi Billings, Geol. Surv. Canada, Can. Org. Rem., dec. 3,1858, pp. 72, 73, fig. 4.?Woodward, Geol. Mag., 7, 1870, p. 261, footnote;8, 1871, p. 72, text figs. 1-7; dec. 2, 7, 1880, pi. 6, fig. 1.Anomalocystites Huxleyi Miller, N. A. Geol. Pal., 1889, p. 224.Ateleocystis Huxleyi Haeckel, Amphor. und Cystoid., 1896, p. 41.Trenton (Curdsville): Hull and Ottawa, Canada. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 89ATHYRIS McCoy. Genotype: Terebratula conceutriea Von Bach.Athyris McCoy, Carb. Fossils Ireland, 1844, pp. 128, 146.?Hall, 13th Rep. NewYork State Cab. Nat. Hist., 1860, p. 73.?Billings, Canadian Jour., 5, 1860, p.273; 6, 1861, p. 138; Pal. Fossils, 1, 1862, p. 144.?Hall, 20th Rep. New YorkState Cab. Nat. Hist., 1867, pp. 152, 258; Pal. New York, 4, 1867, p. 282.?Billings, Amer. Jour. Sci., 44, 1867, p. 48.?Herrick, Bull. Denison Univ.,4, 1888, p. 14.?Nettelroth, Kentucky Fossil Shells, Mem. Geol. Surv.Kentucky, 1889, p. 87.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p.83, fig. 57 on p. 86; 13th Ann. Rep. New York State Geol., 1895, p. 777.Spirigera D'Orbigny, Paris Acad. Sci., Comptes Rendus, 25, 1847, p. 268.Euthyris Quenstedt, Petrefactenkunde Deutschlands, 1871, p. 442.Athyris Billings (1863). See Meristella Hall.Athyris anticostiensis Billings. See Catazyga anticostiensis.Athyris borealis Billings. See Catazyga headi borealis.Athyris cylindrica Billings. See Whitfieldella cylindrica.Athyris Headi Billings. See Catazyga headi.Athyris Headi anticostiensis Billings. See Catazyga anticostiensis.Athyris Headi borealis Billings. See Catazyga headi borealis.Athyris intermedia Nicholson and Hinde. See Whitfieldella intermedia.Athyris julxa Billings. See \Vhitfieldella(?) julia.Athyrsis junia Billings. See Hyattidina congesta junia.Athyris lara Billings. See Whitfieldella lara.Athyris naviformis BUlings. See "\\Tiitfieldella(?) naviformis.Athyris nitida Hall. See Whitfieldella nitida.Athyris Prinstana Billings. See Hindella prinstana.Athyris solitaria Billings. See AVhitfieldella? solitaria.Athyris? trisinuatus McChesney. See Meristina trisinuata.Athyris timida Roemer. See Meristina maria roemeri.Athyris(?) tumidula Billings.Athyris tumidula Billings, Cat. Sil. Foss. Anticosti, 1866, p. 47.?Sclnichert, Bull.U. S. Geol. Surv., 87, 1897, p. 150.Anticostian (Gun River and Jupiter River): Jupiter River, etc., Anticosti.Athyris turgida Shaler. See Hindella prinstana.Athyris umbonata Billings. See Hindella uinl)onata.Atops fischeri Miller. See Triarthrus fischeri. 90 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.ATRYPA Dalman. Genotype: Anomia reticularis Linnaeus.Atrypa Dalman, Kongl. Svenska Vet.-Akad. Handl., 1828, p. 102.?Billings,Canadian Nat. Geol., 1, 1856, p. 134; Canadian Jour. , 6, 1861, p. 264.?Chap-man, Canadian Jour., n. s., 7, 1862, p. 114; Expos. Min. Geol. Canada, 1864,p. 117.?Whitfield, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 141,pi. 1.?Hall, Pal. New York, 4, 1867, p. 312.?Zittel, Handb. Pal., 1, Munich,1880, p. 688.?Davidson, Mon. Brit. Foss. Brachiopoda, 5, Sil. Suppl., Pal.Soc, 1882, p. 84.?Miller, N. A. Geol. Pal., 1889, p. 335.?Nettelroth, Ken-tucky Fossil Shells, Mem. Kentucky Geol. Siu-v., 1889, p. 88.?Beecher,Amer. Joiu-. Sci., 3d ser., 44, 1892, p. 147.?Hall and Clarke, Pal. New York,8, pt. 2, 1893, p. 163; 13th Ann. Rep. New York State Geol., 1895, p. 818.?Koken, Die Leitfossilien, Leipzig, 1896, p. 241, fig. 202, 203.?Grabau, Bull.Buffalo Soc. Nat. Sci., 6, 1899, p. 226; Schuchert, Zittel-EastmanTextb. Pal.,1, 1900, p. 334.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 195.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 309.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 409.Atrypa acutirostra Hall. See Zygospira(?) acutirostris.Atrypa afpinis Vanuxem. See Atrypa reticularis.Atrypa altilis Hall. See Camarotoechia plena.Atrypa ambigua Hall. See Camarella ambigua.Atrypa aprinis Hall. See Homoeospira apriniformis.Atrypa arctostriata (Foerste).Atrypa reticularis arctostriatus Foerste, Jour. Geol., 11, 1903, p. 710.Atrypa arctostriata Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 93, pi.2, figs. 34A, B.Niagaran (Brownsport): Near Brownsport Furnace, three miles west Vice Land-ing, Tennessee.Atrypa? blconvexa Maynard.Atrypa? biconvexa Majoiard, Maryland Geol. Surv., Low. Dev., 1913, p. 393, pi.68, figs. 1-3.Helderbergian (Keyser): Keyser, West Virginia; Cash Valley, Maryland.Atrypa bidens Hall. See Rhynchonella(?) bidens.Atrypa bidentata Hall. See Rhynchonella(?) bidentata.Atrypa bisulcata Hall. See Cyclospira bisulcata.Atrypa brevirostris Hall. See Anastrophia brevirostris.Atrypa calvini Nettelroth.Atrypa calvini Nettelroth, Kentucky Foss. Shells, Mem. Kentucky Geol. Surv.,1889, p. 89, pi. 32, figs. 64-66.?Kindle and Breger, 28th Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1904, p. 440, pi. 8, figs. 13-15.Niagaran: Louisville, Kentucky (Louisville); Delphi, Pendleton, etc., Indiana(Nobleeville).Holotype.?Gat. No. 51331, U.S.N.M.Atrypa camura Hall. See Trematospira camiu-a.Atrypa capax Conrad. See Rhynchotrema capax.Atrtpa chemungensis Conrad. See Atrypa reticularis. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 91Atrypa circulakis Hall. See Parastrophia hemiplicata.Atryi'A congesta Conrad. See Hyattidina congesta.Atrypa corallifera Hall. See Dictyonella corallil'era.Atrypa crassirostra Hall. See Whitfieldella cylindrica.Atrypa cuneata Hall. See Rhynchotreta cuneata americaua.Atrypa cuspidata Hall. See Triplecia cuspidata.Atrypa cylindrica Hall. See Whitfieldella cylindrica.Atrypa deflecta Hall. See Zygospira deflecta.Atrypa dentata Hall. See Rhynchotrema dentatum.Atrypa disparilis Hall. See Atrypina disparilis.Atrypa dubia Hall. See Protorhyncha dubia.Atrypa emacerata Hall. See Rhynchonella emacerata.Atrypa equiradiata Hall. See Oamarotcecliia oeqniradiata. ^Atrypa exigua Hall. See Zygospira exigua.Atrypa extans Emmons. See Triplecia extans.Atrypa flabella Shaler. See Coelospira hemispherica.Atrypa galeata Dalman. See Gypidula (Sieberella) galeata.Atrypa grayi Davidson. See Streptis grayi.Atrypa(?) gibbosa Hall.Atrypa gibbosa Hall, Pal. New York, 2, 1852, p. 79, pi. 20, fig. ]0.Clinton: Clinton, New York.Atrypa hemiplicata Hall. See Parastrophia hemiplicata.Atrypa hemispherica Sowerby. See Coelospira hemispherica.Atrypa imbricata Hall. See Atrypa nodostriata.Atrypa impressa Shaler. See Atrypa reticularis.Atryp.a. increbescenh Hall. See Rhynchotrema capax and R, inrequivalve.Atrypa intermedia Hall. See Whitfieldella intermedia.Atrypa interplicata Hall. See Anastrophia interplicata.Atrypa l.evis Vanuxem. See Whitfieldella la'vis.Atrypa lamellata Hall. See Camarotcechia lamellata.Atrypa? lara Schuchert. See Wliitfieldella? lara.Atrypa laticorrugata Foerste.Atrypa lati-corrugata Foerste, Geol. Ohio, 7, 1895, p. 591, pi. 57A, fig. 10.Upper Medinan (Brassfield): Dayton, Ohio.Atrypa lens Sowerby. See Stricklandinia lens.Atrypa lentiformis Vanuxem. See Atrypa reticularis. 92 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Atrypa mansonii (Salter).Rhynchonella mansonii Salter, Sutherland's Jour. Voyage Baffins Bay, etc., 2,1852, p. ccxxi, i>l. 5, lig. 5.?Etheridge, Quart. Jour. Geol. Soc. London, 34,1878, p. 596.Atrypa masonii Scliuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 153.Niagaran: Near Wellington Channel, Bessels Bay, Arctic America.Atrypa margiualis (Dalman).Terebratula marginalia Dalman, Kongl. Svenska Vet.-Akad. Handl. for 1827,1828, p. 59, pi. 6, fig. 6.Atrypa marginalia Roemer, Sil. Fauna west. Tennessee, 1860, p. 69, pi. 5, fig. 10. ? Billings, Cat. Sil. Foss. Anticosti, 1866, p. 46.?Hall and ^V^litfield, 24thRep. New York State Cab. Nat. Hist., 1872, p. 197.?Davidson, Geol. Mag.,dec. 2, 8, 1881, p. 10, fig. 9; Mon. Brit. Foss. Bracliiopoda, 5, Sil. Suppl.,Pal. Soc, 1882, p. 122.?Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p.314, pi. 6, figs. 8, 9; Geol. Ohio, 7, 1895, p. 591, pi. 25, figs. 6, 9; pi. 31, figs.8, 9.?Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 55, figs. 24, 25.?Grabau and Shuner, N. A. Index Fossils, 1, 1907, p. 309.Trematospira matthewsoni McChesney, Descriptions New Pal. Fos., 1860, p.71; Trans. Chicago Acad. Sci., 1,1868, p. 32, pi. 7, fig. 3.Atrypa nodostriata Foerste (not Hall), Bull. Denison Univ., 1, 1885, p. 90, pi.13, fig. 9.AtrjT)a marginalis var. multistriata Foerste, Proc. Boston Soc. Nat. Hist., 24,1890, p. 316, pi. 6, fig. 8.Silurian: Europe; Anticosti, etc., C'anada; New York, Pennsylvania, Ohio, etc.(Brassfield-Niagaran) . Atrypa marginalis var. multistriata Foerste. See Atrypa marginalis.Atrypa modesta Hall. See Zygospira modesta.Atrypa naviformis Hall. See Whitfieldella(?) naviformis.Atrypa neglecta Hall. See Camarotcecliia (Stegerhynchus) neglecta.Atrypa nitida Hall. See Whitfieldella nitida.Atrypa nitida var. oblata Hall. See Whitfieldella oblata.Atrypa nodostriata Foerste. See Atrj^a marginalis.Atrypa nodostriata Hall.Atryim imbricata Hall (not Sowerby), Geol. New York, Rep. 4th Dist., 1843,Tab. Org. Rem., 13, fig. 1.Atrypa nodostriata Hall, Pal. New York, 2, 1852, p. 272, pi. 56, fig. 2.?Hall andWhitfield, Pal. Ohio, 2, 1875, p. 133, pi. 7, figs. 12-14.?Safford, Geol. Ten-nessee, 1869, p. 315, text fig. 5.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 196, fig. 114; Bull. New York State Mus., 45, 1901, p. 196, fig. 113.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 309, fig. 387.Niagaran: Lockport, etc., New York (Rochester); Ontario; Ohio; Kentucky;Wisconsin; Tennessee.Atrypa nucleolata Hall. See Whitfieldella(?) nucleolata.Atrypa nucleus Hall. See Triplecia nucleus.Atrypa obtusiplicata Hall. See Camarotoechia ol)tuRi])licata.Atrypa orbicularis Owen.Atrypa orbicularis Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 2d cd., 1844, p.80, pi. 15, fig. 9. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 93Atrypa orbicularis?Continued.Ordovician: Iowa.Observation.?Not recognized. Figure represents internal cast of some unde-termined brachiopod.Atrypa phoca of authors. See Lissatrypa plioca.Atrypa planoconvexa Hall. See Coelospira planoconvexa.Atrypa plena Hall. See Camarotoecliia plena.Atrypa plicata Hall. See Rhynchonella plicata.Atrypa plicatella Hall. See Rhynchonella i^licatella.Atrypa plicatula Hall. See Coelospira plicatula.Atrypa plicifera Hall. See Camarotcechia plena.Atrypa praemarginalis Savage.Atryi^a prtemarginalis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 84, ])1. 4,figs. 14-16.Upper Medinan (Edgewood): Near Edgewood and Watson Station, Pike County,Missouri; near Thebes, Illinois.Atrypa prisca Vanuxem. See Atrypa reticularis.Atrypa putilla (Hall and Clarke).Zygospira putilla Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 157, fig. 150;p. 365, pi. 54, figs. 35-37; pi. 83, figs. 29, 30.?Hall, 48th Rep. New YorkState Mus., 2, 1897, p. 362, pi. 9, figs. 31, 32.?Hall and Clarke, 14th Rep.State Geol. New York for 1894, 1897, p. 362, pi. 9, figs. 31, 32.Atrypa putilla Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 85, pi. 4, fig. 25.Upper Medinan (Edgewood): Thebes, Illinois; Edgewood and Louisiana, Mis-souri.Atrypa quadricostata Hall. See Hyattidina congesta.Atrypa recurvirostris Hall. See Zygospira recurvirostris.Atrypa reticularis (Linnaeus).Anomia reticularis Linnaeus, Syst. Nat., 12th ed., 1, 1767, p. 1132.Atrypa chemungensis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 265. ? Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 182, fig. 4.Hipparionyx consimilaris Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 132,fig. 2.Atrypa affinis Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 88, fig, 12,Hall, ibid.. Rep. 4th Dist., 1843, p. 88, fig. 12.Atrypa prisca Vanuxem, Geol. New York, Rep. 3d Dist., 1842, p. 139, fig. 5.Hall, ibid., Rep. 4th Dist., 1843, p. 175, fig. 5; p. 198, fig. 4.?Owen, GeoLExpl. Iowa, Wisconsin, Illinois, 1844, pi. 12, figs. 2, 10.?Billings, CanadianNat. Geol., 1, 1856, p. 474, pi. 7, fig. 11.Atrypa lentiformis Vanuxem, Geol. New York, Rep. 3d Dist., 1842, j). 163, fig. 3,p. 164.?Hall, ibid.. Rep. 4th Dist., 1843, p. 215, fig. 3.Strophomena ithacensis Vanuxem GeoL New York, Rep. 3d Dist., 1842, p. 174,fig. 2.Atrypa tribulis Hall, Geol. New York, Rep. 4th Dist., 1843, p. 271, fig. 3.Terebratula prisca Castelnau, Essai Syst., Sil. I'Amdrique Septent., 1843, p. 40,pi. 13, fig. 8. 94 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Atrypa reticularis?Continued.Terebratula reticularis Hall, Amer. Joiu". Sci., 2d ser., 20, 1849, p. 227.?Yandelland Shumard, Cont. Geol. Kentucky, 1847, p. 10.Atrypa impressa Shaler (not Hall), Bull. Mus. Comp. Zool., 4, 1865, p. 68.Atrypa reticularis Hall, Pal. New York, 2, 1852, v. 72, pi. 23, fig. 8; p. 270, pi.55, fig. 5.?Billings, Canadian Nat. Geol., 1, 1856, p. 137, pi. 2, fig. 10.?Hall,Geol. Surv. Iowa, 2, 1858, p. 515; Pal. New York, 3, 1859, p. 253, pi. 42,fig. 1.?Roemer, Sil. Fauna west. Tennessee, 1860, p. 69, pi. 5, fig. 9.?Bil-lings, Canadian Jour., 6, 1861, p. 264, figs. 84-87; Geol. Canada, 1863, p. 318,fig. 335; p. 384, fig. 416.?Hall, Pal. New York, 4, 1867, p. 316, pi. 52, figs.1-3, 7-12; pi. 53, figs. 3-19; pi. 53A, figs. 22, 23.?Meek, Trans. Chicago Acad.Sci., 1, 1868, p. 97, pi. 13, fig. 13.?Meek and Worthen, Geol. Surv. Illinois,3, 1868, p. 432, pi. 13, fig. 11.?Meek, Simpson's Rep. Expl. Great BasinTerr. Utah, 1876, p. 347, pi. 1, fig. 6.?King's U. S. Geol. Surv. Expl. 40thPari., 4, 1877, p. 38, pi. 1, fig. 7; pi. 3, fig. 6.?Etheridge, Quart. Jour.Geol. Soc. London, 34, 1878, p. 596.?Hall, 28th Rep. New York. State Mus.Nat. Hist., 1879, p. 362, pi. 25, figs. 44-47.?White, 2d Ann. Rep. IndianaBureau Statistics and Geol., 1880, p. 502, pi. 5, figs. 7-9; 10th Rep. StateGeol. Indiana, 1881, p. 134, pi. 5, figs. 7-9; 11th Rep., 1882, p. 304, pi. 25,figs. 44^7._'\\rhitfield, Geol. Wisconsin, 4, 1882, p. 333, pi. 26, fig. 6.?Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 150, pi. 14, fig. 6.?Beecher andClarke, Mem. New York State Mus. Nat. Hist., 1, 1889, p. 51, pi. 4, figs.12-20.?Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Surv., 1889,p. 91, pi. 14, figs. 12-23; pi. 15, fig. 1.?Foerste, Proc. Boston Soc. Nat. Hist.,24, 1890, p. 314.?Whiteaves, Cont. Canadian Pal., 1, 1892, p. 289, pi. 37, fig.8.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 165, fig. 153; pi. 55,figs. 1-17.?Herrick, Geol. Ohio, 7, 1895, pi. 20, fig. 7.?Davidson, Mon.British Devonian Brach. Pal. Soc, 1864, p. 53, pi. 10, figs. 3, 4.; 1867, p. 129, pi.14, figs. 1-22; 1SS2, pp. 109, 110, figs. ; pi. 6, figs. 14, 15; pi. 7, figs. 1-6.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, pp. 57-60, figs.?Miller, N. A. Geol.Pal., 1889, pp. 336, 337, figs. 541-543.?Grabau, Bull. Buffalo Soc. Nat. Sci.,8, 1901, p. 195, fig. 112; Bull. New York State Mus., 45, 1901, p. 195, fig.112.?ICindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana,1904, p. 440, pi. 8, figs. 16-18.?Grabau, Michigan Geol. Siu-v., geol. ser. 1, 1909,p. 162, pi. 20, fig. 1.?Maynard, Maryland Geol. Surv., Low. Dev., 1913, p,392, pi. 67, figs. 26-28.?Hoitedahl, 2d Arct. Exp. Fram, 1898-1902, No. 32,1914, p. 23, pi. 8, fig. 5.Silurian and Devonian: World-wide distribution.Atrypa reticularis arctostriatus Foerste. See Atrypa arctostriata.Atrypa reticularis newsomensis Foerste.Atrypa reticularis newsomensis Foerste, Jour. CJeol., 11, 1903, p. 710.?Foreste,Bull. Sci. Lab. Denison Univ. 14, 1909, p. 93, pi. 1, fig. IIA, B.Niagaran (Waldron): Newsom, etc., Tennessee.Atrypa reticularis niagarensis Nettelroth.Atrypa reticularis var. niagarensis Nettelroth, Kentucky Fossils Shells, Mem.Kentucky Geol. Surv., 1889, p. 92, pi. 32, figs. 5-8, 44-47.?Foerste, Jour.Cincinnati Soc. Nat. Hist., 21, 1909, p. 13.Niagaran (Waldron-Louis\-ille) : LouisAille, etc., Kentucky; Clarke County, Wal-dron, etc., Indiana; Newsom, etc., Tennessee.Cotypes.?Cat. No. 51314, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 95Atrypa robusta Hall. See Rhyuchotrela robusta.Atrypa rugosa Hall.Atrypa rugosa Hall, Pal. New York, 2, 1852, p. 271, pi. 56, fig. 1.?Hall andClarke, ibid., 8, pt. 2, 1893, p. 171.?Graban, Bull. New York State Mus., 45,1901, p. 196, fig. 114; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 196, fig. 114.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 310, fig. 388.?Foerste,Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 13, pi. 2, fig. 6.Rhynchonella nigosa Billings, Gcol. Canada, 1863, p. 315, fig. 321.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1889, p. 899, fig.Niagarau: Lockport, etc.. New York, and Ontario (Rochester); Indiana; Ohio(West Union); Kentucky; Anticosti.Atrypa semiplicata Conrad. See Camarotoechia semiplicata.Atrypa sordida Hall. See Plectorthis (Encuclodema) sordida.Atrypa subtrigonalis Hall. See Rhynchotrema subtrigonale.Atrypa sulcata A'anuxera. See Whitfieldella sulcata.Atrypa tribulis Hall. See Atrypa reticularis.Atrypa tubulistrlata Savage.Atrypa tubulistrlata Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 86, pi. 5, figs.23 and 21.Upper Medinan (Edgewood): Louisiana and mouth of Buffalo Creek, PikeCounty, Missouri; south of Hamburg, Illinois.ATRTPINA Hall and Clarke. Genotype: Leptocoelia imbricata Hall.Atrj'pina Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 161, fig. 152; 13thAnn. Rep. New York State Geol. 1895, p. 815.?Schuchert, Zittel-EastmanTextb. Pal., 1900, p. 334; 2d ed., 1913, p. 408.Atrypina clintoni Hall and Clarke.Atrypina clintoni Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 162, pi. 53,figs. 7, 17-19; pi. 83, fig. 0; 48th Rep. New York State Mus., 2, 1897, p. 362,pi. 9, figs. 27-30; 14th Rep. State Geol. New York for 1894, 1897, p. 362, pi.9, figs. 27-30.Clinton: Orleans County, New York.Atrypina disparllis (Hall).Atryi^a disparilis Hall, Pal. New York, 2, 1852, p. 277, pi. 57, fig. 6.?Hall andClarke, Pal. New York, 8, pt. 2, 1895, pi. 53, figs. 1-4.Leptocoelia disparilis Hall, 12th, Rep. New York State Ca1>. Nat. Hist., 1859, p. 77.Trematospira? disparilis Hall, IGth Rep., ibid., 1863, p. 60; Trans. All)anyInstitute, 4, 1863, p. 146.Ccelospira disparilis Hall, 28th Rep. New York State Mus. Nat. Hist., 1879, p.162, pi. 25, figs. 39-43; 11th Rep. State Geol. Indiana, 1882, p. 363, pi. 25,figs. 39-43.?Beecher and Clarke, Mem. New York State Mus. Nat. Hist., 1,1889, p. 64, pi. 5, figs. 17-23.Atryjnna disparilis Schuchert, Btill. U. S. Geol. Surv., 87, 1897, p. 156.Niagaran: \\'olcott, etc.. New York (Wolcott-Rochester); Waldron, Indiana;Tennessee (Waldron).Atrypina intermedia (Hall).Leptocoelia intermedia Hall, Canadian Nat. Geol., 1860, 5, p. 147, fig. 5.?Dawson,Acadian Geology, 3d ed., 1878, p. 598, fig. 202.Atry|5ina intermedia Schuchert, Bull. U. S. Gcol. Surv., 87, 1897, p. 157 (gen.rcf.).Silurian: Arisaig, Nova Scotia. 96 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.AULOCERIUM Parks. Genotype: A. eavagei Parks.Aulocerium Parks, Univ. Toronto Studies, Geol. Ser., 6, 1909, p. 44.Aulocerium savagei Parks.Aulocerium savagei Parks, Univ. Toronto Studies, Geol. Ser., 6, 1909, p. 44, pi.18, figs. 13 and 15.Niagaran: Wilmington, Illinois.AULOCOPELLA Rauff. Genotype: A. winnipegensis Rauff.Aulocopella Rauff, Palaeontographica, 41, 1895, p. 268.Aulocopella winnipegensis Rauff.Aulocopella winnipegensis Rauff, Palaeontographica, 41, 1895, p. 269, fig. 124, pl.^24, figs. 4-6.?Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 3, 1897, pp.145, 146, fig. 9, pi. 16, figs. 1-3.Black River or Richmond: Cat Head, Lake Winnipeg, Canada.AULOCOPINA Billings. Genotype: A. granti Billings.Aulocopina Billings, Canadian Nat., n. s., 7, 1874, p. 230.?Miller, N. A. Geol.Pal., 1889, p. 154.?Zittel-Eastman Textb. Pal., 1, 1900, p. 47; 2d ed., 1913,p. 53.Aulocopina granti Billings.Aulocopina Granti Billings, Canadian Nat., n. s., 7, 1874, p. 231, figs. 1, 2. ? Walker, Jour, and Proc. Hamilton Assoc, 11, 1895, p. 86, fig. 2.Niagaran dolomite: Hamilton, Ontario.AuLOPORA Goldfuss (part). See Stomatopora Broun.AULOPORA Goldfuss. Genotype: A. serpens Goldfuss.Aulopora Goldfuss, Petrefacta Germ., 1826, pp. 82, 245.?Fischer de Waldheim,Oryctographie Gouv. Moscou, 1837, p. 162.?Dana, Wilkes' U. S, Expl.Exped., 7, Zoophytes, 1842, p. 630.?McCoy, Syn. Foss. Carb. Ireland, 1844,p. 190.?King, Mon. Permian Foss. England, Pal. Soc, 1850, p. 31.?Edwardsand Haime, Mono. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'llist. Nat., 5),1851, pp. 159, 311.?Pictet, Traite de Pal., 2d ed., 4, 1859, p. 463.?Billings,Canadian Jour., n. s., 4, 1859, p. 118.?Milne-Edwards, Hist. Nat. d. Corall.,3, 1860, p. 319.?Koninck, Animaux Foss. Terr. Carb. Belgique (Mem.I'Acad. Royale Sci. de Belgique, 39), 1872, p. 148.?Nicholson, Rep. Pal.Prov. Ontario, pt. 1, 1874, p. 42.?Nicholson, Trans. Royal Soc. Edinburgh,27, 1876, p. 241.?Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 87.?Nicholson, Tab. Corals Pal. Period, 1879, p. 219.?Roemer, Leth. geog., pt.1, Leth. Pal., 1883, p. 518.?Hall and Simpson, Pal. New York, 6, 1887, p. xi.?Miller, N. A. Geol. Pal., 1889, p. 173.?Beecher, Trans. Connecticut Acad.Arts and Sci., 8, 1891, p. 210.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894,p. 217.?Sardeson, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 10, 1896,p. 339.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 131.?Zittel-East-luan Textb. Pal., 1, 1900, p. 101.?Grabau and Shimer, N. A. Index Fossils, 1,1906, p. 78.?Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 116.Aulopora akachnoidea Hall. See Stomatopora arachnoidea.Aulopora consimilis Lonsdale. See Berenicea consimilis.AuLOPOR.v FRONDosA James. See Proboscina frondosa. BIBLIOGRAPHIC LJST OF GENEEA AND SPECIES. 97Aiilopora precius Hall.Aulopora precius Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875(1877), pi. 9, figs. 5, G; Mus. ed., 1879; 13th Ann. Rep. Indiana Dep. Geol.Nat. Hist., 1882, p. 227, pi. 8, figs. 5, 6.?Roenier, Lethseageog., pt. 1, Leth.Pal., 1883, p. 521.?Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky,pt. 2, 1885, pi. 97, fig. 20.Niagaran: Waldron, Indiana, etc. (Waldron); Louisville, Kentucky (Louisville).Aulopora precius compressus Foerste.Aulopora precius compressus Foerste, Pi'oc. Boston Soc. Nat. Hist., 24, 1890, p.339.Upper Medinan (Brassfield) : Ludlow Falls, Ohio.Aulopora i)ygmoea Davis.Aulopora pygmoea Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, pi. 73, figs. 5, 6.Niagai'an (Louisville) : Near Louisville, Kentucky.Aulopora repens Roemer. See Aulopora roemeri.Aulopora roemeri Foerste.Auloi)ora repens Roemer (not Knorr and Walsh, 1775), Sil. Fauna West Tennes-see, 1860, p. 28, pi. 2, fig. 1, la.Aulopora roemeri Foerste, Jom-. Geol., 11, 1903, p. 712.Niagaran (Brownsport) : Perry and Decatur Counties, Tennessee.Aulopora schohariee Hall.Aulopora schohariaj Hall, 2Gth Rep. New York State Mus., 1874, p. 110; 32d Rep.1879, p. 142; Rep. NeAV York State Geol. for 1882, 1883, pi. 2, figs. 1-6; Pal.New York, 6, 1887, p. 3, pi. 2, figs. 1-6.?Swartz, Maryland Geol. Surv., Low.Dev., 1913, p. 219, pi. 26, figs. 2, 3.Helderbergian: Schoharie and Clarksville, New York (New Scotland); Hyndman,Pennsylvania (Keyser).Aulopora schucherti Swartz.Aulopora schucherti Swartz, Maryland Geol. Sm-v., I>ow. Dev., 1913, p. 219, pi.26, figs. 4, 5.Helderbergian (Keyser): Keyser, West Vii-ginia; Cash Valley, Hancock, etc.,Maryland; Hyndman, Pennsylvania.Aulopora serpens Owen.Aidopora serpens Owen (not Goldfuss, 1829), Geol. Expl. Iowa, Wiscon.sin, andIlUnois, 2d ed., 1844, p. 78, pi. 14, fig. 2.Niagai-an: Iowa and Wisconsin.Aulopora(?) trentouensis Winchell and Schuchert.Aulopora(?) trentonensis Winchell and Schuchert, Geol. Minnesota, 3, pt. 1,1895, p. 95, pi. G, figs. 26-28.Black River (Decorah): Minneapolis, near Cannon Falls, etc., Miimesota.Aulopora umbellifera Billings. See Romingeria umbellifera.Aulopora vanclevii Hall.Aulopora Vanclevii Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p.255, pi. 4, figs. 1, 2.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.67, figs.Niagaran (Louisville): Falls of the Ohio.AusTiNELLA Foerste. See Plectorthia subgenus Auetinella.84243??Bull. 02?1.") 7 98 BULLETIN 92. UNITED STATES NATIONAL MUSEUM.AVICULA Klein. Genotype: A. hirundo Klein.Avicula Klein, Ostrac, 1873.?McCoy, Syn. Char. Foss., 1844, p. 82.?Wood-ward, Man. Mollusca, pt. 2, 1854, p. 260, pi. 16, fig. 18.?McCoy, Brit. Pal.Rocks and Foss., 1854, p. 257.?Pictet, Traite de Pal., 2d ed., 3, 1855, p.597.?Zittel, Handb. Pal., 2, Munich, 1881, p. 32.?Waagen, Mem. Geol.Surv. India, Pal. Indica, 13th ser., 1, 1881, p. 289.?Barrande, Syst. Sil.Centre Boheme, 6, 1881, p. 23.?Miller, N. A. Gaol. Pal., 1889, p. 463.?Jackson, Amer. Nat., 24, 1890, p. 1141.?Koken, Die Leitfossilien, Leipzig,1896, p. 187.Avicula alata Nicholson. See Modiolopsis primigenia.Avicula avipormis Conrad. See Prolobella trentonensis.Avicula carinata Emmons. See Byssonychia carinata.Avicula communis Hall. See Actinopteria communis.Avicula corrugata James. See Pterinea corrugata.Avicula danbyi McCoy. See Palseopecten danbyi.Avicula demissa Conrad. See Pterinea demissa.Avicula elliptica Hall. See Prolobella subelliptica.Avicula emacerata Conrad. See Pterinea emacerata.Avicula?? ferruglnea Conrad.Avicula ferruginea Conrad, Proc. Acad. Nat. Sci. Philadelphia, 3, J846, p. 23,pi. 1, fig. 28.Silurian (iron ore): Jersey Shore, Lycoming <'ounty, Pennsylvania.Avicula Hermione Billings. See Prolobella? hermione.Avicula honeymani Miller. See Pterinea honeymani.Avicula insueta Emmons. See Pterinea insueta.Avicula lamellosa Dawson.Avicula lamellosa Dawson, Canadian Nat., n. s., 9, 1880, p. 342.Silurian: Pictou, Nova Scotia.Avicula leptonota Hall. See Pterinea emacerata.Avicula lim^formis Hall. See Limoptera limseformis.Avicula obscura Hall. See Pterinopecten? obscura.Avicula? orbiculata Hall. See Amphicoelia orbiculoides.Avicula rhomboidea Hall. See Leptodesma rhomboidea.Avicula rugcsa Vanuxem. See Pterinea subrugosa.Avicula securiformis Hall. See Pterinea securiformis.Avicula subarcuata Emmons. See Modiolopsis arcuata.Avicula subelliptica Emmons. See Prolobella subelliptica.Avicula subplivna Hall. See Leiopteria subplana.Avicula subrecta Hall. See Pterinea subrecta. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 99AvicuLA SUBRETROFLEXA D'Orbigny. See Pterinea demissa.AvicuLA SUBRUGOSA D'Orbigny. See Pterinea subrugosa.AvicuLA TENUiLAMELLATA Hall. See Aviculopecten tenuilamellatus.AvicuLA TRENTONENsis Conrad. See Prolobella trentonensis.Avicula triquetra Hall.Avicula triquetra Hall, Nat. Hist. New York, GeoL, 4, 1843, p. 137, fig. 7.Niagaran (Guelph): Newark, Wayne County, New York.Avicula undata Hall. See Pterinea undata.Avicula? undosa Ringueberg.Avicula undosa Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 18, pi. 2,fig. 9.Clinton (Rochester): Lockport, New York.Avicula welchi James. Not recognized.Avicula we] chi James, Cincinnati Quart. Jour. Sci., 1, 1874, p. 239.Richmond: Clinton County, Ohio.Avicula whitfieldi Foerste. See Cyrtodonta? ferruginea.AYICULOPECTEN McCoy. Genotype: A. planoradiatus McCoy.Aviculopecten McCoy, Ann. Mag. Nat. Hist., 2d ser., 7, 1851, p. 171, fig; Contr.British Pal., 1854, p. 203, fig.; British Pal. Rocks and Foss., 1854, p. 392.?Meek, Amer. Jour. Sci. and Arts, 2d ser., 37, 1864, p. 217.?Meek and Hay-den, Pal. Up. Missouri, Smiths. Cent. Knowl., 172, 14, 1865, p. 49.?Meek,Amer. Jour. Sci. and Arts, 2d ser., 44, 1867, p. 175; 44, 1868, p. 64.?Zittel,Handb. Pal., 2, Munich, 1881, p. 30.?Waagen, Mem. Geol. Surv. India, Pal.Indica, 13th ser., 1, 1881, p. 300.?Barrande, Syst. Sil. du Centre Boheme, 6,1881, p. 22; Acephales Ext. Syst. Sil. du Centre Boheme, 1881, p. 34.?Hall,Pal. New York, 5, pt. 1, Lam. (adv. copy), 1883, p. 3; 4th Rep. State Geol.New York, 1885, p. 47, figs. 1, 2; 1st Rep. State Geol. New York, 1884, p. 12;Pal. New York, 5, pt. 1, Lam. 1, 1884, p. xii; 35th Rep. New York State Mus.,1884, p. 406b.?Miller. N. A. Geol. Pal., 1889, p. 465.?Koken, Die Leitfos-silien, Leipzig, 1896, p. 185.?Grabau, Bull. Butfalo Soc. Nat. Sci., 6, 1899,p. 240.?Girty, Amer. Geol., 33, 1904, pp. 291, 292, fig.; 34, 1904, p. 332.?Hind, ibid., 34, p. 200.?Dall, Zittel-Eastman Textb. Pal., 2d ed., 1913,p. 457.Aviculopecten sub rectus Miller. See Pterinea subrecta.Aviculopecten tenuilamellatus (Hall).Avicula tenuilamellata Hall, Pal. New York, 3, 1859, p. 281, pi. 51, figs. 1 and 2.Aviculopecten tenuilamellatus Maynard, Maryland Geol. Surv., Low. Dev., 1913,p. 461, pi. 78, fig. 4.Helderbergian: Albany and Schoharie Counties, New York (New Scotland);Keyser, West Virginia (Keyser).AZTGOGRAPTUS Nicholson. Genotype: A. lapworthi Nicholson.Azygograptus Nicholson. Ann. Mag. Nat. Hist., 4th ser, 16, 1875, p. 269.?Wiman,Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 266; Nat. Sci., 9, 1896,p. 188.?Files, Quart. Jour. Geol. Soc. London, 54, 1898, p. 513.?Files andWood, Mon. British Grapt. Pal. Soc, 1902, p. 92.?Ruedemann, Mem. NewYork State Mus., 11, pt. 2, 1908, pp. 256-257. 100 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Azygograptus? simplex Ruedemann.Dawsonia campanulata Ruedemann (not Nicholson, 1873), Bull. New York StateMus., 42, 1901, p. 520.Azygograptus? simplex Ruedemann, Mem. New York State Mus., 11, pt. 2, pp.258-260, pi. 14, fig. 10, figs. 163-171.Cliazyan(Normanskill): Kenwood, Glenmont, Mount Moreno, and Lansingburg,New York.Azygograptus? walcotti Lapworth.Azygograptus? walcotti (Lapworth) Gurley, Jour. Geol., 4, 1896, pp. 69, 92.?Ruedemann, Mem. New York State Mus. , 11, pt. 2, 1908, pp. 257, 258, fig. 162.Chazyan (Normanskill): Stockport, New York.Bairdia anticostiensis Jones. See Krausella anticostiensis.Balanocrinites Troost. See Lampterocrinus Roemer.Balanocrinus Hall. See Lampterocrinus Roemer.BALTOCERAS Holm. Genotype: Endoceras bmrhardii Dexitz.Baltoceras Holm, Geol. Mag., dec. 4, 4, 1897, p. 251.?Ruedemann, Bull. NewYork State Mus., 90, Pal., 14, 1906, p. 432.?Hyatt, Zittel-Eastman Textb.Pal., 1, 1900, p. 517.Baltoceras(?) pusillum Ruedemann.Baltoceras(?) pusillum Ruedemann, Bull. New York State Mus., 90, Pal. 14, 1906,p. 431, pi. 9, fig. 4, 5.Canadian (Beekmautown): Valcour, New York.Barrandella Hall and Clarke. See Clorinda Barrande.BARRANDEOCERAS Hyatt. Genotype: Nautilus natator Billings.Barrandeoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 299.?Zittel.Handb. Pal., 2, Munich, 1884, p. 382.?Foord, Cat. Foss. Ceph. British Mus.,11, 1891, p. 77.?Hyatt, Proc. Amer. Philos. Soc, 32, 1894, p. 450.?Miller,N. A. Geol. Pal., 2d App., 1897, p. 771.?Whiteaves, Geol. Surv. Canada,Pal. Foss., 3, pt. 4, 1906, p. 307.?Ruedemann, Bull. New York Stnte Mus.,90, Pal. 14, 1906, p. 454.?Grabau and Shimer N. A. Index Fossils, 2,1910, p. 65.Barrandeoceras americanum (D'Orbigny).Lituites convolvans (Hisinger?) Hall, Pal. New York, 1, 1847, p. 53, i)l. 13, figs.2, 2a.Hortholus Americanus D'Orbigny, Prodr. de Pal., 1, 1849, p. 1 (new name forLituites convolvans Hall).?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 146.Lituites Americanus Miller, N. A. Geol. Pal., 1889, p. 442.Barrandeoceras convolvans Hyatt, Proc. Amer. Philos. Soc, 32, 1894, p. 451.?Miller, N. A. Geol. Pal., sec app., 1897, p. 771.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 66.Barrandeoceras subcostulatum Whiteaves, Ottawa Naturalist, 12, 1898, p. 121;Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1900, p. 310, pi. 38.Black River: Watertown, New York (Watertown); Wolfe Island, near Kingston,Canada.Barrandeoceras convolvans Hyatt. See Bai-randeoceras americanum.Barrandeoceras elrodi Milleri. See GjTOceras elrodi. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 101Barrandeoceras inlnganeuse Hyatt.Barrandeoccras niuiganense Hyatt, Proo. Amer. Phil. Soc.,32, 1894, p. 451. ? Wliiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 309.Chazyan (Mingan): Mingan Islands, Canada.Barrandeoceras natator (I?illings).Nautilus natator Billings, Canadian Nat., 4, No. 6, 1859, p. 406.Phragmoceras natator Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 638,7 figs.Barrandeoceras natator Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, j). 299(gen. ref.); Proc. Amer. Phil. Soc, 32, 1894, p.452.?Whiteaves, Geol. Siu-v.Canada, Pal. Foss., 3, pt. 4, 1906, p. 308, pi. 39, figs. 1, la, lb.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 66, fig. 1274.Chazyan: Mingan Islands, Canada (Mingan); east shore of Valcour Islands, NewYork (Valcour).Barrandeoceras subcostulatum Whiteaves. See Barrandeoceras americanum.Barrandeoceras vagrans (Billings).Gyroceras (Lituites) vagrans Billings, Geol. Surv. Canada Rep. Progr. for 1853-56,1857, p. 308.Barrandeoceras vagrans Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt, 4, 1900,p. 311, pi. 40, figs. l-2a.Black River (Leray): La Petite Chaudiere Rapids, Ottawa River, andMontreal, Canada.BARRANDEOCRINUS Angelin. Genotype: B. septrum Angelin.Barrandeocrinus Angelin, Icon. Crin., 7, 1878, pi. 4, fig. 5, 5a; pi. 5, figs. 6, 6a;pi. 22, figs. 2^.?Zittel, Handb. Pal., 1, 1879, p. 368.?Wachsmuth andSpringer, Proc. Acad. Nat. Sci. Philadelphia, 1885, p. 347 (Rev. Pal., pt. 3,p. 125); Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 484.?Bather, Treatiseon Zool. (Lankester), pt. 3, 1900, p. 166, fig. 80.?Wachsmuth, Zittel-Eastman Pal., 1, 1900, p. 144.?Zittel, Grundzuge Pal., 1, 1910, p. 159.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 195.Cylicocrinus Miller, N. A. Geol. Pal., 1st App., 1892, p. 076; 18th Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1894, p. 285 (adv. sheets 1892).?Bather,Treatise on Zool., pt. 3, Echinoderma, I^ondon, 1900, p. 156. (Genotype:C. canaliculatus Miller.)Barrandeocrinus canaliculatus (Miller).Cylicocrinus canaliculatus Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana(adv. sheets, 1892, p. 31, pi. 5, figs. 13, 14), 1894, p. 285, pi. 5, figs. 13, 14;N. A. Geol. Pal., 1st App., 1892, p. 676, fig. 1220.BaiTandeocrinus canaliculatus Wachsmuth and Springer, Mom. Mus. Comp.Zool. Harvard, 21, 1897, p. 485.Niagaran (Laurel): St. Paul, Indiana.Barrandeocrinus? indiancnsis (Miller and Giu-ley).Cylicocrinus(?) indianensis Miller and Gurley, Bull. Illinois State Mus. Nat.Hist., 6, 1895, p. 31, pi. 4, figs. 20-22.?Miller, N. A. Geol. Pal., 2d App., 1897,p. 741, fig. 13:?1.Niagaran (Laurel): St. Paul, Indiana.Barrandia? mccoyi Walcott. See Dolichometojius mccoj-i. 102 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.BARYPHTLLUM Edwards and Haime.Genotype: B.verneiiileanum Edwards and Haime.Baryphyllum Edwards and Haime, Mon.d. Polyp. Foss. d. Terr. Pal. (Arch, duMus. d'Hist. Nat., 5), 1851, pp. 165, 352.?Pictet, Ti-aite de Pal., 4, 1857, p.453.?Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 355.?Ludwig, Palseon-tographica, 14, 1865, p. 143, pi. 31, figs. 11, 11a.?Dybowski, Archivf. Natur.Liv-, Ehst-undKurl., 5, 1873, p.334.?Zittel, Handb. Pal., 1, Munich, 1879,p. 227.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 372.?Miller, N. A.Geol. Pal., 1889, p. 174.?Sherzer, Amer. Geol., 7, 1891, pp. 278-283.Baryphyllum fungulus White.Bar>T)hylluin fungulus White, Proc. Acad. Nat. Sci. Philadelphia, 1878, p. 29.Niagaran (Waldron) Waldron, Indiana.BASILICUS Salter. Genotype: Aeaphus tyrannus Murchison.Basilicus Salter, Mem. Geol. Siu-v. United Kingdom, dec. 2, 1849, pi. 5.?McCoy,Ann. Mag. Nat. Hist. (2), 4, 1849, p. 399; Brit. Pal. Rocks and Fossils, 1854,p. 169.?Salter, Mon. Brit. Tril., Pal. Soc, 1866, p. 146.?Zittel, Handb.Pal., 2, 1885, p. 608.?Koken, Die Leitfossilien, Leipzig, 1896, p. 26.?Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 8th ser., 6, 1898, p. 29; 12,No. 8, 1901, p. 1; 14, No. 10, 1904, pp. 3-20.?Raymond, Ann. Carnegie Mus.,7, No. 1, 1910, p. 62; Trans, and Proc. Roy. Soc. Canada, 5, 3d ser., sec. 4,1912, p. 115; Zittel-Eastman Textb. Pal., 1913, p. 719.Basilicus barrandi (Hall).Asaphus Barrandi Hall, Geol. Lake Superior Land Dist., Foster and Whitney'sRep., 1851, p. 210, pi. 27, figs, la-d; pi. 28; Rep. Geol. Surv. Wisconsin, 1862,p. 41, fig. 4.Ogygia barrandii Wliitfield, Amer. Mus. Nat. Hist., 2, pt. 1, 1898, p. 70.Asaphus Romingeri Walcott, 28th Rep. New York State Mus. Nat. Hist., doc.ed., 1877, p. 96; mus. ed., 1879, p. 96.Ptychopyge romingeri Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 709.Basilicus romingeri Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 49, pi. 15,figs. 9, 10; pi. 16, figs. 1^.Asaphus Wisconsensis Walcott, 28th Rep. New York State Mus. Nat. Hist., doc.ed., 1877, p. 97; mus. ed., 1879, p. 97.Ptychopyge ulrichi Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 709, figs. 12, 13.Asaphus ulrichi Miller, N. A. Geol. Pal., 2d App., 1897, p. 786 (gen. ref.).Basilicus barrandi Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 42; Bull.Mus. Comp. ZooL, 58, 1914, p. 261, pi. 1, figs. 4, 5; pi. 2, figs. 1, 7.Black River: Platteville, etc., Wisconsin; Russia, Herkimer County, New York;Cannon Falls and Faribault, Minnesota; Ottawa, Ontario- St. Joseph's Island,Lake Huron.Basilicus canadensis Chapman. See Ogygites canadensis.Basilicus huttoni (Billings).Asaphus Huttoni Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 271, fig. 256.Ptychopyge huttoni Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 710.Asaphus morrisii Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 272, fig.257.?Vogdes, Bull. U. S. Geol. Surv., 63, 1890, pp. 93, 94.Chazyan (Quebec?N, P): Tablehead and four miles northeast Portland Creek,Newfoundland.Basilicus marglnalis (Hall).Asaphus marginalis Hall, Pal. New York, 1, 1847, p. 24, pi. 4 (bis.), fig. 15.?Emmons, Amer. Geol., 1, pt. 2, 1855, p. 235, pi. 3, fig. 16.?Raymond, Ann.Carnegie Mus., 3, 1905, p. 339, pi. 10, figs. 17-20; pi. 11.?Grabau and Shimer,N. A. Index Foss., 2, 1910, p. 291, fig. 1599. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 103Basilicus marginalis?Continued.Basilicus marginalis Raymond, 7th Rep. State Geol. Vermont, 1910, p. 220, pL32, figs. 17-20; pi. 34, figs. 8-10; pi. 37, fig. 6; pi. 39, figs. 1-2; Ann. CarnegieMus., 7, No. 1, 1910, p. 62, fig. 1; pi. 17, fig. 6; pi. 19, figs. 1, 2.Asaplius alpha Raymond, Ann. Carnegie Mus., 3, 1905, p. 342, pi. 12, fig. 9.Asaphus gamma Raymond, Ann. Carnegie Mus., 3, 1905, p. 342, pi. 12, fig. 10.Chazyan (Day Point, Crown Point): Chazy, Valcour Island, etc., New York.Observation.?See also Gerasaphes ulrichana Ruedemann (not Clarke) for apossible synonym.Basilicus? vetustus (Hall).Ogygia? vetusta Hall, Pal. New York, 1, 1847, ]). 227, pi. fiO, fig. 1.?Emmons,Amer. Geol., 1, pt. 2, 1855, p. 216, fig. 72.Asaphus vetustus Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 72(gen. ref.).Black River (Lowville): Mohawk Valley, New York.Bathyccelia Foerste. See Pianodema Foerste.BATHTURELLUS Billings. Genotype: Bathyurellus abruptus Billings.Bathyurellus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 262, 263. ? Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, p. 94,footnote; mus. ed., 1879.?Dames, Richthofen's China, Berlin, 4, 1883, p. 5.Zittel, Handb. Pal., 2, 1885, p. 602.?Miller, N. A. Geol. Pal., 1889, p. 533.?Raymond, Ann. Carnegie Mus., 3, No. 2, 1905, p. 337; Zittel-Eastman Textb.Pal., 1913, p. 718.Bathyurellus abruptus Billings.Bathyurellus abruptus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 263,fig. 247 (?250).Canadian (Quebec?F, G, H): Port aux Choix and Keppel Island, Newfoundland.Bathyurellus brevispinus Raymond.Bathyurellus brevispinus Raymond, Ann. Carnegie Mus., 3, 1905, p. 337, pi. 10,figs. 13-15; 7th Rep. State Geol. Vermont, 1910, p. 218, pi. 32, figs. 13-15.Chazyan: Three miles east of Chazy, New York (Day Point); Mingan Islands,Canada (Mingan).Bathyurellus expansus Billings.Bathyurellus expansus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 318,fig. 306a, b.Canadian (Beekmantown) : Stanbridge, Quebec.Bathyurellus formosus Billings.Bathyurellus formosus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 206,fig. 250.Chazyan (Quebec?P): Cow Head, NewfoundlancLObservation.?Compare Bathyurellus brevispinus Raymond.Bathyurellus fraternus Billings.iiathyurellus fraternus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 267,fig. 251, a, b.Chazyan: Cow Head, Newfoundland (Quebec?P); Mingan Islands, Canada(Mingan).Bathyurellus litoreus Billings.P>athyurellus litoreus Billiugs, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 320.Ozarkian ? (Levis-erratic): Point Levis, Quebec. 104 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bathyurellus marginatus Billing.s.Bathyiirellus marginatus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 264,fig. 248 (?249).Canadian (Quebec?F, G, H): Keppel Island, Portaux Choix, and Table Head,Newfoundland.Bathyurellus minor Raymond.Bathyurellus minor Raymond, Annals Carnegie Mus., 3, 1905, p. 338, pi. 10, fig. 16;7th Rep. State Geol. Vermont, 1910, p. 219, pi. 32, fig. 16.Bathyurellus validus Raymond, Bull. Amer. Pal., 3, No. 14, 1902, p. 301.Chazyan (Crown Point): Crown Point, Valcour Island, New York.Bathyurellus nitidus Billings.Bathyurellus nitidus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 265, fig.249.?Miller, N. A. Geol. Pal., 1889, p. 533, fig. 971.Chazyan (Quebec?P): Cow Head, Newfoundland.Bathyurellus rarus Billings.Bathyurellus rarus Billings, Pal. Foss., 1, Geol. Surv., Canada, 1865, p. 320.Ozarkian? (Levis-en-atic): Point Levis, Quebec.Bathyurellus validus Billings.Bathyurellus validus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1805, p. 268,fig. 252. Chazyan (Quebec?L): Point Rich, Newfoundland.BATHTURUS Billings. Genotype: Asaphus extans Hall.Bathyunis Billings, Canadian Nat. Geol., 4, 1859, p. 364; 5, 1860, p. 317; Pal.Foss., 1, Geol. Surv. Canada, 1865, pp. 408, 409.?Walcott, 28th Rep. NewYork State Mus. Nat. Hist., doc. ed., 1877, p. 94; mus. ed., 1879.?Kayser,Beitr. Geol. and Pal. Argentinischen Republik, Palseontograpliica Suppl., 3,1876, p. 10.?Dames, Richthofen's China, 4, 1883, p. 4.?Zittel, Handb. Pal.,2, 1885, p. 602.?Miller, N. A. Geol. Pal., 1889, p. 533.?Grabau and Sliimer,N. A. Index Fossils, 2, 1910, p. 288.?Raymond, Zittel-Eastman Textb. Pal.,1913, p. 718; Bull. Victoria Mem. Mus., 1, 1913, p. 51.Bathyurus acutus Raymond.Bathyurusacutus Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 50, pi. 7. fig. 4.Stones River (Pamelia): Westboro, near Ottawa, Ontario.Bathyurus amplimarginatus Billings.Bathyurus amplimarginatus Billings, Canadian Nat. Geol., 4, 1859, p. 305,fig. 12a, b; Geol. Canada, Geol. Surv. Canada, 1863, p. 122, fig. 41; Pal. Foss.,1, Geol. Surv. Canada, 1805, p. 353, fig. 341a.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 288.?Raymond, Bull. Victoria Mem. Mus., 1, 1913,p. 54.Bathyunis minganensis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1805, p. 353.Canadian: Miugan Islands, Canada (Romaine); Rockland, Ontaiio, (Beekman-town).Bathyurus angelini Billings.Bathyrus Angelini Billings, Canadian Nat. Geol., 4, 1859, p. 407, fig. 37; Geol.Canada, Geol. Surv. Canada, 1803, p. 133, fig. 08.-Chapman, Canadian Jour.,n. s., 8, 1803, p. 29, fig. 142; p. 195, fig. 100; Expos. Min. Geol. Canada, 1864,p. 137, fig. 142; p. 167, fig. 166.?Raymond, Ann. Carnegie Mus., 3, 1905,No. 2, p. 335, fig. 1, pi. 10, figs. 11, 12; 7th Rep. State Geol. Vermont, 1910,pi. 32, figs. 11, 12; Bull. Victoria Mem. Mus., 1, 1913, p. 55, pi. 7, fig. 5.Canadian: Grenville (Beekmantown), Mingan Islands (Romaine), etc., Canada. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 105Bathyurus arcuatiis Billing.s.Batlniinis arruatiis Billings, Pal. Foss., 1, Geol. Siirv. Canada, 18G5, p. 205, figs.189, 190.?Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 57.Canadian (Beekmantown): Near St. Antoine, above Quebec, Canada.Bathyurus armatus Billings. See Plethopeltis armatus.Bathyurus armatus Walcott. See Plethopeltis saratogensis.Bathyurus bituberculatus Billings. See Lloydia bituberculatus.Bathyurus breviceps Billings. See Leiostegium breviceps.Bathyurus capax Billings. See Platycolpiis capax.Bathyurus caudatus Billings. See Goniurus caudatus.Bathyurus coxgeneris Walcott. See Ilolasaphns congeneris.Bathyurus conicus Billings. See Hystricurus conicus.Bathyurus cordai Billings. See Hystricunis cordai.Bathyurus crotalifrons Dwight. See Hystricunis crotalifrons.Bathyurus cybele Billings. See Petigiinis cybele.Bathyurus?? darwini Kaj'ser.Bathyiinis? Darwinii Kayser, Beitr. Geol. Pal. Argentiiiischen Republik, Palseon-tographica Suppl., 3, 1876, p. 12, pi. 2, fig. 6.Ordovician: Quebrada de Juan Pobre, Argentina.Bathyurus dubius Billings. See Platyrolpus dubius.Bathyurus ellipticus Cleland. See Petigunis ellipticus.Bathyurus extans (Hall).A.saphus? extans Hall, Pal. New York, 1, 1847, p. 228, pi. 60, figs. 2, 2a-c; 3dRep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 182, pL 3, fig. 1 (doc.ed., p. 174).?Emmons, Amer. Geology 1, pt. 2, 1855, pi. 15, figs. 8, 11.Asaphus? nodostriatus Hall, Pal. New York, 1, 1847, p. 248, pi. 61, figs, la, b.Bathyurus extans Billings, Canadian Nat. Geol., 4, 1859, p. 364; Geol. Canada,Geol. Surv. Canada, 1863, p. 153, fig. 114.?Clarke, Geol. Minnesota, 3, pt. 2,1897, p. 722, fig. 37.?Grabaii and Shimer, N. A. Index Fossils, 2, 1910, p.288, fig. 1594.?Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 46, pi. 15,figs. 7, 8; pi. 16, fig. 5; Bull. Victoria Mem. Mus., 1, 1913, p. 52.Black River: Mohawk Valley, near Watertown, etc.. New York; OttaAva andMingan Islands, Canada; Minnesota, Wisconsin, Kentucky.Bathyurus glandicephalus Wliitfield.Bathyurus (Bathjiircllus) glandicephalus WTiitfield, Bull. Amer. Mus. Nat. Hist.,3, 1890, p. 38, pi. 2, figs. 9-12.Bathyurus glandicei^halus Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 55.Canadian (Beekmantown) : Shoreham, Vermont; Champlain Valley.Bathyurus ingalli Raymond.Bathyurus ingalli Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 57, pi. 7, fig. 7.Trenton (Curdsville): Two miles north Kirkfield, Belleville, and near Ottawa,Ontario. 106 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bathyurus Johnston! Raymond.Bathyurus johnstoni Raymond, BulL Victoria Mem. Mus., 1, 1913, p. 53, pL 7,figs. 2, 3.Black River (Lowville): Garden, Ottawa, and west of Mechanicsville, Ontario.Bathyurus? lajensis Kayser.Bathyurus? Lajensis Kayser, Beitr. Geol. and Pal. Argentinischen Republik,Palaeontographical Suppl. 3, 1876, p. 12, pi. 2, fig. 5.Ordovician: Quebrada de la Laja, Argentina.Bathyurus levis Cleland. See Symphysurus convexus.Bathyurus longispinus Walcott.Bathyurus longispinus Walcott, 28th Ann. Rep. New York State Mus., 1879, p.94.?Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 47, pi. 16, figs. 12-14;Zittel-Eastman Textb. Pal., 1913, p. 718, fig. 1381; Bull. Victoria Mem. Mus.,1, 1913, p. 54.Ptychopyge jerseyensis Weller, Pal. New Jersey, 3, 1903, p. 193, pi. 14, fig. 16.Black River: Newport, New York; Jacksonburg, New Jersey.Bathyurus minganensis Billings. See Bathyurus amplimarginatus.Bathyurus nero Billings. See Petigurus nero.Bathyurus oblongus Billings. See Lloydia oblongus.Bathyurus? orbignyanus Kayser.Bathyurus? Orbignyanus Kayser, Beitr. Geol. and Pal. Argentinischen Republik,Pateontographical Suppl. 3, 1876, p. 12, pi. 2, figs. 7, 8.Ordovician: Quebrada de Juan Pobre, Argentina.Bathyurus perkinsi ^\^litfield.Bathyurus perkinsi \\'hitfield. Bull. Amcr. Mus. Nat. Hist., 9, 1897, p. 183, pi. 5,figs. 7, 8.?Seely, 7th Rep. State Geol. Vermont, 1910, pi. 55, figs. 7, 8.Canadian (Beekmantown) : Mouth of Otter Creek, Vermont.Bathyurus perplexus Billings.Bathyurus perplexus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 364, fig.350.?Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 52.Middle Ordovician ? Bonne Bay, Newfoundland.Observation.?Probably the same as B. extans.Bathyurus perspicator Billings. See Goniurus pcrspicator.Bathyurus pogonipensis Hall and Whitfield.Bathyurus Pogonipensis Hall and Whitfield, U. S. Geol. Expl. 4()th Pari., 4, 1877,p. 243, pi. 1, figs. 33, 34.Lower Pogonip: West side Pogonip Mountain. White Pine District, Nevada.Holotype.?Cat. No. 24655, U.S.N.M.Bathyurus quadratus Billings. See Leiostegium quadratus.Bathyurus saffordi Billings. See Lloydia saffordi.Bathyurus schucherti Clarke.Bathyurus schucherti Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 724, figs. 41, 42.?Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 58.Black River (Platteville) : Minneapolis, Minnesota.Cotype.?Cat. No. 43052, U.S.N.M. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 107Bathyurus seelyi ^\^litfield. See Bolbocephalus seelyi and Hystricurus cordai.Bathyurus(?) simillimus Walcott.Bathyurus? simillimus Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 93, pi. 12,fig. 11.Upper Pogonip: Wliite Mountain, Eureka District, Nevada.HoJotype: Cat. No. 24653, U.S.N.M.Bathyurus smithi Billings. See Haploconus smithi.Bathyurus solitarius Billings. See Lloydia solitarius.Bathyurus spiniger (Hall).Acidaspis spiniger Hall, Pal. New York, 1, 1847, p. 241, pi. 64, fig. 5.Bathyurus spiniger Clarke, Geol. Minnesota, 3, pt. 2, 1884, p. 723, figs. 38-40. ? Raymond, Bull. Amer. Pal., 3, 1902, \)\. 19, figs. 1-3; Ann. Carnegie Mus., 7,1910, p. 48, pi. 15, figs. 4-6.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 288.?Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 57.Black River: Mohawk Valley, New York; Montreal, Quebec; Hlinois, Kentucky,Missouri, Iowa.Plesiotype.?Cat. Nos. 41932, 41933, U. S.N.M.Bathyurus stonemanii Vogdes. See Proetiis stonemani.Bathyurus strenuus Billings. See Lloydia strenuus.Bathyuru.s superbiis Raymond.Bathyurus superbus Raymond, Ottawa Nat., 24, 1910, p. 129, pi. 2, figs. 1-3; Bull,Victoria Mem. Mus., 1, 1913, p. 54.Black River: Near Ottawa, Ontario.Bathyurus ? taurifrons Dwight.Bathyurus taurifrons Dwight, Amer. Jour. Sci., 3d ser., 27, 1884, p. 252, pi. 7,figs. 1, la-3.Canadian (Beekmantown): Rochdale County, New York.Bathyurus ? timon Billings.Bathyurus Timon Billings, Pal. Foss., 1, Geol. Surv. Canada, p. 261, fig. 244.Canadian (Quebec-G, H): Port aux Choix, Newfoundland.Bathyurus tuberculatus Walcott. See Hystricurus tuberculatus.Bathyurus ? vetulus Billings.Bathyurus vetulus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 365.Middle Ordovician: East arm of Bonne Bay, Newfoundland.BATOSTOMA ? Ulrich.Genotype: Monticulipora (Heterotrypa) implicata Nicholson.Batostoma Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 154.?Foord,Contr. Micro-Pal. Cambro-Sil., 1883, p. 17.?Miller, N. A. Geol. Pal., 1889,p. 294.?Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 379, 459; Geol. Minnesota,3, 1893, p. 288; Zittel's Textb. Pal. (Engl, ed.), 1897, p. 275.?Simpson, 14thAnn. Rep. State Geol. New York for 1894, 1897, p. 588.?Nicklesand Bassler, . Bull. U. S. Geol. Surv., 173, 1900, p. 35.?Grabau and Shimer, N. A. IndexFossils, 1, 1907, p. 136.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 740.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 272; Zittel-EastmanTextb. Pal., 1913, p. 338. 108 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Batostoma canadeuse (Foord).Amplexopora Canadensis Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 17, pi. 4,figs. 2-2d.Batostoma Canadensis Ulricli, Geol. Minnesota, 3, 1893, p. 317.Mohawkian: St. Joseph Island, Lake Huron (Black River); Joliette, Quebec(?Trenton).Batostoma? decipiens Ulrich.Batostoma? decipiens Uliich, Geol. Minnesota, 3, 1893, p. 298, pi. 27, figs. 16-19.Black River (Decorah): Minneapolis, Minnesota.Eolotype.?Cat. No. 43511, U.S.N.M.Batostoma fertile UWch.Batostoma fertilis Ulricli, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886,p. 92; Geol. Minnesota, 3, 1893, p. 290, pi. 25, figs. 1-11; Zittel's Textb. Pal.(Engl, ed.), 1896, p. 275, fig. 459A.?Sardeson, Joiu-. Geol., 9, 1901, p. 12.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 136, fig. 188k, 1901.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 274, 275, fig. 163.Black River (Decorah): Minneapolis, Minnesota, and vicinity.Ordovician (Echinospherites limestone) : Near Reval, Esthonia, Russia.Coiypes.?Cat. No. 43505, U.S.N.M.Batostoma fertile circulare Ulrich.Batostoma fertile var. circulare Ulrich, Geol. Minnesota, 3, 1893, p. 291, pi. 25,figs. 8, 9?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 275, 276, fig. 1G4;Zittel-Eastman Textb. Pal., 1913, p. 338, fig. 492b.Batostoma fertile Ulrich, Zittel's Textb. Pal. (Eng. ed.), 1896, p. 275, fig. 459B.Black River (Decorah): Llinneapolis, Minnesota, and \icinity.Ordovician (Echinospha;rites limestone) : Near Reval, Esthonia, Russia.Holotype.?Cat. No. 43506, U.S.N.M.Batostoma humile Ulrich.Batostoma humile Ulrich, Geol. Minnesota, 3, 1893, p. 294, pi. 25, figs. 29-36.Trenton (Prosser): St. Paul and Cannon Falls, Minnesota; Decorah, Iowa.Cotypes.?Cat. No. 43509, U.S.N.M.Batostoma imperfectum Ulrich. See Hemiphragma imperfectum.Batostoma implicatum (Nicholson).Chtetetes implicata Ulrich, Cat. Foss. Cincinnati Group, 1880, p. 12 (not defined).Monticulipora (Heterotrypa) implicata Nicholson, Genus Monticulipora, 1881, p.147, pi. 2, figs. 7, 7e.Monticulipora implicatum J. F. James, Jour. Cincinnati Soc. Hist., IG, 1894, p. 198Batostoma implicatum Uhich, ibid., 5, 1882, p. 256; 7, 1883, p. 83.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, p. 178.?Nickles, Bull. KentuckyGeol. Surv., 5, 1905, p. 48, pi. 2, fig. 6.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 774, pi. 7, fig. 7; pi. 8, fig. 2.Alecto nexilis James, Intr. Cat. Foss. Cincinnati Group, 1875, p. 3.?Bassler,Proc. U. S. Nat. Mus., 30, 1906, p. 10.Ceramopora? irregularis James, Paleontologist, No. 1, 1878, p. 5 (part).?Bassler,Proc. U. S. Nat. Mus., 30, 1906, p. 26.Eden: Cincinnati, Ohio, and vicinity.Batostoma irrasa Ulrich. See Hemiphragma irrasura,Batostoma jamesi (Nicholson).Chsetetes Jamesi Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 506, pi.29, figs. 10, 10b; Pal. Ohio, 2, 1875, p. 200, pi. 21, figs. 11, 11a; Ann Mag.Nat. Hist., 4th. ser., 18, 1876, p. 89. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 109Batostoma jamesi?Continued.Moutic'ulipora Jamesi Nicholson, Ann. Mag. Nat. Hist., 5th ser., G, 1880, p. 415,fig. ;iA, B, ng.4.?(VanCleve) Hall, 12th Rep. Indiana Geol. Nat. Hist., 1883,p. 248, pi. 11, fig. 8.?James and James, Jour. Cincinnati Soc. Nat. Hist., 10,1888, p. 176.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 421, figs.?J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 197.Monticulipora (Heterotryjia) Jamesi Nicholson, Genus Monticulipora, 1881, p. 143,figs. 25, 26.Batostoma jamesi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 256; 6, 1883,p. 83.?Miller, N. A. Geol. Pal., 1889, p. 294, fig. 457.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 775, pi. 7, figs. 8, 8a; p\. 8, fig. 1,pi. 27, figs. 6, 6a.Ceramopora? irregularis James, Paleontologist, No. 1, 1878, p. 5 (part).?Bassler,Proc. U. S. Nat. Mus., 30, 1906, p. 26.Eridotrypa vevayensis Cumings, Amer. Geol., 28, 1901, p. 376, pi. 35, figs. 7, 8.Eden: Cincinnati, Ohio, and vicinity.Observation.?The type specimen of Eridotrypa vevayensis was found to be anexample of Batostoma jamesi in wliich the mesopores were fewer than usual,thus making the zooccia more angular. Ceramopora irregularis James was basedon incrusting forms of both Batostoma jamesi and B. implicatum.Batostoma libana (Safford).Stenopora libana Safford, Geol. Tennessee, 1869, p. 285.Stones River (Lebanon): Lebanon, Tennessee.Observation.?Although not sufliciently described for recognition, this speciesis known to be a characteristic fossil of the Lebanon limestone.Batostoma magnopora Ulrich.Batostoma magnopora Ulrich, Geol. Minnesota, 3, 1893, p. 291, pi. 25, figs. 12-15. ? Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 272-274, figs. 161, 162.Black River (Decorah): Minneapolis, Minnesota, and vicinity.Ordovician (Wassalem): Uxnorm, Esthonia, Russia.Cotypcs and plesiotypc?Cat. Nos. 43508, 57377, U.S.N.M.Batostoma mauitobense Ulrich.Batostoma Manitobense Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 33;pi. 9, figs. 3-3c.?Whiteaves, Pal. Foss., 3, 1895, p. 117.Richmond (Stony Mountain): Stony Mountain, Manitoba; Wyoming.Sections of cotypes.?Cat. No. 43250, U.S.N.M.Batostoma maysvillense Nickles.Batostoma maysvillensis Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 51, pi. 2,figs. 13, 14.Maysville (Mount Hope): Near Maysvillc, Kentucky.Batostoma minnesotense Ulrich.Amplexoi)ora superba Ulrich (not Foord), 14th Ann. Rep. Geol. Nat. Hist. Surv.Minnesota, 1881, p. 92.Batostoma minnesotense Ulrich, Geol. Minnesota, 3, 1893, p. 297, pi. 26, figs.38-40, pi. 27, figs. 9-15.?Simpson, 14th Ann. Rep. State Geol. New York for1894, 1897, p. 588, fig. 173.Black River (Decorah): Minneapolis, St. Paul, etc., Minnesota.Cotypes.?C^t. No. 43507, U.S.N.M.Batostoma montuosum Ulrich.Batostoma montuosum Ulrich, Geol. Minnesota, 3, 1893, p. 293, pi. 25, figs. 26-28.Black River (Decorah): Cannon Falls, Minnesota.Holotype.?QdX. No. 45312, U.S.N.M. 110 BULLETIN 92, UN?TED STATES NATIONAL MUSEUM.Batostoma ottawaense Foord. See Hemipliragma ottawaense.Batostoma prosseri Cumings and Galloway.Batostoma prosseri Cumings and Galloway, Proc. Indiana Acad. Sci., 1912, p.151, pi. 5, figs. 1-lc; pi. 6, figs. 1-ld; pi. 7, figs. 2-2c.Richmond (Upper Waynesville and Lower Liberty): Weisburg, Indiana.Batostoma? rugosum (Whitfield).Fistulipora rugosii Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1879, 1880,p. 60; Geol. Surv. Wisconsin, 4, 1882, p. 255, pi. 11, figs. 20, 21.Batostoma rugosum Miller, N. A. Geol. Pal., 1889, p. 294.Richmond (Maquoketa): Delafield, Wisconsin.Batostoma sevieri Bassler.Batostoma sevieri Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, pi. 21, figs. 1-3.Chazyan (Ottosee): Speer Ferry, Virginia; Knoxville, Tennessee, etc.Cotypes.?Cat. No. 56630, U.S.N.M.Batostoma superbum (Foord).Amplexopora superba Foord, Contr. Micro-Pal. Cambro-.Sil., 1883, p. 16, pi. 4,figs. 1-lc.Batostoma superbum Ulrich, Geol. Minnesota, 3, 1893, p. 297.Trenton: Montreal, Quebec.Batostoma (Hemiphragma) tenuimurale Grabau and Shimer. See Hemiphragmatenuimurale.Batostoma variable (part) Ulrich. See Batostoma varians.Batostoma variable Ulrich.Batostoma variable Ulrich (part), Geol. Surv. Illinois, 8, 1890, p. 460, pi. 35, fig.5; pi. 36, fig. 1 (not pi. 35, figs. 4b, c=B. varians).?Bassler, Proc. U. S. Nat.Mus., 30, 1906, p. 18, pi. 7, figs. 9, 10.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 777, pi. 8, fig. 4; pi. 26, fig. 13.?Cumings andGalloway, Proc. Indiana Acad. Sci., 1912, p. 150, pi. 2, figs. 1-lc; pi. 3, figs.1-lc; pi. 4, figs. 1, la, pi. 7, figs. 1-lc.Richmond (Whitewater): Versailles, Richmond, etc., Indiana; Ohio.CoUjpes aiid plesiotype.?Cat. Nos. 43820, 44777, U.S.N.M.Batostoma varians (James).Chsetetes varians James, Paleontologist, No. 1, 1878, p. 2.Monticulipora (Chsetetes) varians James, Paleontologist, No. 5, 1881, p. 36.Monticulipora varians James and James, Jour. Cincinnati Soc. Nat. Hist., 10,1888, p. 177, pi. 2, figs. 4a, b.?J. F. James, ibid., 16, 1894, p. 199.Batostoma variabile (part) Ulrich, Geol. Surv. Illinois, 8, 1890, p. 460, pi. 35,figs. 4b-c, (Not 4, 4a, 5, or pi. xxxvi, pt. 1=B. variabile).?^J. F. James, Jour.Cincinnati Soc. Nat. Hist., 16, 1894, p. 200.Batostoma varians Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 179. ? Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 57, pi. 3, figs. 8, 9.?BasslerProc. U. S. Nat. Mus., 30, 1906, p. 18.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 778, pi. 7, fig. 9; pi. 8, figs. 3, 3b; pi. 26, fig. 14.?Cumings and Galloway, Proc. Indiana Acad. Sci., 1912, p. 148, pi. 1, figs.1-le; pi. 7, figs. 3, 3a.Richmond: Blanchester, Clarksville, etc., Ohio; Richmond, Versailles, etc.,Indiana (Arnheim-Liberty) ; Savannah, Illinois, and Delafield, Wisconsin(Maquoketa). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. IllBatostoma varium Ulrich.Batostoma varium Ulrich, Geol. Minnesota, 3, 1893, p. 292, pi. 25, figs. 16-25.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 588, fig.175 (not fig. 17G=Eridotry]>a mutabili^i).Black River (Decorah): Minneapolis and St. Paul, Minnesota.Chazyan (Mingan): Mingan Islands, Canada.Cotypes.?Cat. No. 43510, U.S.N.M.Batostoma (Hemiphragma) whitfieldi Grabau and Shimer. See Hemiphragmawhitfieldi.Batostoma winchelli (Ulrich).Amplexopora winchelli Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, p. 91.Batostoma winchelli Ulrich, Geol. Minnesota, 3, 1893, 295, pi. 26, figs. 33-37,pi. 27, figs. 1-6.?Simpson, 14th Ann. Rep. State Geol. New York for 1894,1897, p. 588, fig. 174.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p.136, fig. 188j, 190].?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 278, 279,fig. 166.Black River (Decora.h): Minneapolis, Minnesota, and vicinity; Lake Nipissing,Ontario.Ordovician (Wesenberg): Wesenberg, Esthonia, Russia.Cotypes.?Cat. No. 43815, U.S.N.M.Batostoma winchelli nodosum Ulrich.Batostoma winchelli var. nodosa Ulrich, Geol. Minnesota, 3, 1893, p. 295, pi. 26,fig. 35.Black River (Decorah): Minneapolis and St. Paul, Minnesota.Batostoma winchelli spinulosum Ulrich.Batostoma winchelli var. spinulosum Ulrich, Geol. Minnesota, 3, 1893, p. 296,pi. 27, figs. 7, 8; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 275, fig. 4590.?Bassler, Bull. U. S. Nat. Mus. 77, 1911, pp. 279-280, figs. 167, 168.Black River (Decorah): Minneapolis and St. Paul, Minnesota.Ordovician (Wassalem): Uxnorm, Esthonia, Russia.Plesiotype.?Cat. No. 57383 U.S.N.M.BATOSTOMELEA Ulrich. Genotype: B. spinulosa Ulrich.Batostomella Ulrich (in part). Jour. Cincinnati See. Nat. Hist., 5, 1882, pp. 141,154.?Miller, N. A. Geol. Pal., 1889, p. 294.?Ubich, Geol. Surv. Illinois, 8,1890, pp. 375, 432.?Rominger, Amer. Geol., 6, 1890, p. 119.?Whidborne,Devon. Fauna England, Pal. Soc, 2, 1895, pt. 4, p. 187.?Ukich, Zittel'sTextb. Pal. (Engl, ed.), 1896, p. 277.?Nickles and Bassler, Bull. U. S. Geol. .Surv., 173, 1900, pp. 32, 180.?Grabau, Bull. New York State Mus., 45, 1901,p. 164; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 164.?Condra, NebraskaGeol. Surv., 2, pt. 1, 1903, p. 38.?Bassler, Bull. U. S. Geol. Surv., 292, 1906,p. 28.?Grabau and Shimer, N. A. Index Foss., 1, 1907, p. 133.?Bassler,Zittel-Eastman Textb. Pal., 1913, p. 335.Geinitzella Waagen and Wentzel, Pal. Indica, ser., 13, 1886, pp. 875, 880.?Zittel, Textb. Pal. (Engl, ed.), 1896, p. 105.Batostomella (part) Ulrich. See Eridotrypa Ulrich.Batostomella annulipbra Ulrich. See Lioclemella armulifera.B.vTOSTOMELLA? ASPERA Nickles and Bassler. See Acanthoclema aspenim.Batostomella ohacilis Ulrich. See Bythopora gracilis. 112 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Batostomella granulifera (Hall).Trematopora granulifera Hall. Pal. New York, 2, 1852, p. 154, pi. 40 A, figs. 9a-c;*28tli Ann. Rep. New York State Miis. (doc. ed.), 1876, pi. 11, figs. 6, 7; (mus.ed.), 1879, p. 112, pi. 11, figs. 6, 7; *lltli Ann. Rep. Indiana Geol. Nat. Hist.,1882, p. 233, pi. 10, figs. 6, 7.?Lesley, Geol. Surv. Pennsylvania, Rep.P 4, 1890, p. 1200, figs.Rhombopora granulifera Ulrich, Geol. Surv. Illinois, 8, 1890, p. 647.Batostomella granulifera Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 180 (gen. ref.).?Grabau, Bull. New York State Mus., 45, 1901, p. 164,fig. 61.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 28, 29, pi. 13, figs.1-5; pi. 24, figs. 10, 11; pi. 25, figs. 11, 12.?*Grabau and Shimer, N. A. IndexFoss., 1, 1907, p. 133.Clinton: Lockport, Rochester, Middleport, etc.. New York; Grimsby, Hamilton,and Thorold, Ontario (^^ochester) ; Osgood, Indiana (Osgood).Niagaran (Waldron) : Waldron, Indiana.Plesiotypes.?Cat. No. 35517, U.S.N.M.Observation.?The citations preceded by the (*) refer to the Waldron form,which may be specifically distinct.Batostomella granulifera ULrich. See Homotrypella granulifera.Batostomella interporosa Ulrich and Bassler.Batostomella interporosa Ulrich and Bassler, Maryland Geol. Surv., Low. Dev.,1913, p. 270, pi. 45, figs. 1, 2; pi. 48, fig. 5.Helderbergiau (Keyser): Devils Backbone, near Cumberland, Maryland.Cotypes.?Cat. No. 53761, U.S.N.M.Batostomella simulatrix Ulrich. See Eridotrj^^a simulatrix.Battus pisiformis Dalman. See Agnostus pisiformis.Battus pusillus Sars. See Shumardia pusilla.Battus tuberculatus Kloeden. See Beyrichia tuberculata.BEATRICEA Billings. Genotype: B . nodulosa Billings.Beatricea Billings, Geol. Surv. Canada, Rep. Progr. for 1853-6, 1857, p. 343;Canadian Jour., n. s., 3, 1858, p. 331; Canadian Nat. Geol., n. s., 2, 1865, p.405.?Hyatt, Amer. Jour. Sci. Arts, 2d. ser., 39, 1865, p. 261-266.?Linney,Geol. Surv. Kentucky, Notes on Rocks Central Kentucky, 1883, p. 14. ? Nicholson, Mon. British Strom., Pal. Soc, 1886, pp. 9, 86.?James, Jour.Cincinnati Soc. Nat. Hist., 9, 1886, p. 245.?Miller, N. A. Geol. Pal., 1889, p.155.?Grant, Jour, and Proc. Hamilton Assoc, 6, 1890, p. 122.?James, Jour.Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 94.?Grabau and Shimer, N. A.Index Foss., 1, 1906, p. 46.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 699.?Parks, Univ. Toronto Studies, Geol. Ser., No. 7,1910, p. 37.Beatricea noduHfera Foerste.Beatricea nodulifera Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 299, pi.7, fig. 13; pi. 8, fig. 5.?Parks, Univ. Toronto Studies, Geol. Ser., No. 7, 1910,p. 47, pi. 25, fig. 10.Richmond (Liberty): Near Sulphur Spring, three miles southeast of Lebanon,and Bardstown, Kentucky.Beatricea nodulifera intermedia Foerste.Beatricea nodulifera intermedia Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909,p. 300, pi. 8, figs. 4a-c.?Parks, Univ. Toronto Studies, Geol. Ser., No. 7, 1910,p. 47, pi. 25, fig. 9.Bichmond (Liberty): Marion County, Kentucky. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 113Beatricea uodulosa Billings.Beatricea nodulosa Billings, Geol. Surv. Canada, Rep. Progr. for 1853-6, 1857, p.344; Canadian Jour., n. s., 3, 1858, p. 332.?Hyatt, Proc. Boston See. Nat.Hist., 10, 1865, p. 19; Amer. Jour. Sci. and Arte, 2d ser., 39, 1865, pp. 262,266.?Billings, Cat. Sil. Foss., Anticosti, Geol. Surv. Canada, 1866, p. 8(loc. ref.)?Shaler, Amer. Nat.. 11, 1877, p. 628.?Nicholson, Mon. BritishStrom., pt. 1, Pal. Soc, 1886, p. 87-89; pi. 8, figs. 1-8.?James, Jour. Cin-cinnati Soc. Nat. Hist., 9, 1886, p. 245; 15, pt. 3, 1892, p. 95.?Wliiteaves,Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 114 (loc. occ); CanadianRec. Sci., 7, 1897, p. 132.?Grabau and Shimer, N. A. Index Foss., 1, 1906,p. 47, fig. 74.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908p. 700, pi. 1, figs, la-b.?Foerste, Bull. Sci. Lab. DenisonUniv., 14, 1909, p.300.?Parks, Univ. Toronto Studies, Geol. Ser.. No. 7, 1910, p. 45, pi. 25,figs. 2-5, 7-8.Richmond: Wreck Point, Salmon River, etc., Anticosti; Stony Mountain, Mani-toba; Ohio; Indiana; Kentucky.Beatricea sulcata Hyatt. See Beatricea undulata.Beatricea uudulata Billings.Beati-icea undulata Billings, Geol. Surv. Canada, Rep. Progi*. for 1853-1856, 1857,p. 344; Canadian Jour., n. s., 3, 1858, p. 332; Canadian Nat. Geol., n. s., 2,1865, p. 405, figs. 1, 2.?Hyatt, Amer. Jom-. Sci. and Arts, 2d ser., 39, 1865, pp.261, 266.?Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 8,34 (loc. ref.).?Shaler, Amer. Nat., 11, 1877, p. 628.?Nicholson, Mon. Brit.Strom., Pal. Soc, 1886, p. 89.?James, Join-. Cincinnati Soc. Nat. Hist., 9,1886, p. 245; 15, pt. 3, 1892, p. 95.?Whiteaves, Pal. Foss., Geol. Surv. Canada,3, pt. 2, 1895, p. 114 (loc. occ); Canadian Rec. Sci., 7, 1897, p. 133.?Grabauand Shimer, N. A. Index Fossils, 1, 1906, p. 47.?Cumings, 32d Ann. Rep.Dep. Geol. Nat. Res., Indiana, 1908, p. 701, pi. 1, fig. 1.?Foerste, Bull. Sci.Lab. Denison Univ., 14, 1909, p. 298, pi. 8, fig. 3.?Parks, Univ. TorontoStudies, Geol. Ser., No. 7, 1910, p. 43, pi. 25, figs. 1, 6, 7.Beatricea sulcata Hyatt, Proc. Boston Soc. Nat. Hist., 10, 1865, p. 19 (error forundulata).Richmond: Cape James, Table Head, etc., Anticosti; Snake Island, Lake St.John, Quebec; Rabbit and Club Islands, Lake Huron; Stony Mountain, Man-itoba; Marion, Nelson, Madison, and Bullitt Counties, Kentucky; Ohio andIndiana.Beatricea undulata cylindrica Foerste.Beatricea undulata-cylindrica Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909,p. 298, pi. 9, fig. 7.?Parks, Univ. Toronto Studies, Geol. Ser., No. 7, 1910,p. 44.Richmond: Four miles north Richmond, and Marion and Nelson counties, Ken-tucky (Liberty); Elkhorn Creek, south of Richmond, Indiana (Elkhorn).Belemnocystis Bather. See Belemnocystites Miller and Gurley.BELEMNOCYSTITES Miller and Gurley.Genotype: B. wetherbyi Miller and Gurley.Belemnocystites Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 1894,p. 8.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 739.Belemnocystis Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 51.84243??Bull. 92?15 S 114 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Belemnocystites wetherbyi Miller and Gurley.Belemnocystites wetherbyi Miller and Gurley, Bull. Illinois State Mus. Nat.Hist., 6, 1894, p. 9, pi. 1, figs. 4-6.?Miller, N. A. Geol. Pal., 2d App., 1897,p. 740, fig. 1321.rrenton (Curdsville): Mercer County, Kentucky.Bellekophon (part) of authors. See Sinuites Koken, Salpingostoma Roemer, Buca-nopsis Uhich, Tetranota Ulrich and Scofield, and Oxydiscus Koken.BELLEROPHON Montfort. Genotype: B. vasulites Montfort.Bellerophon Montfort, Conchiliologie Systematique, 1, 1808, p. 51.?Pictet,Traite de Pal., 2d ed., 3, 1855, p. 286.?Emmons, Amer. Geology, pt. 2, 1855,pp. 163, 164.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 306.?Waagen,Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1880, pp. 130, 133.?Zittel,Handb. Pal., 2, 1882, p. 183.?Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 192.?Nettekoth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 158.?Koken, Neues Jahrb. f. Min., Geol., Pal., Beilage-Band, 6, 1889, p. 385.?Miller, N. A. Geol. Pal., 1889, p. 396.?Grabau, Bull. Buffalo Soc. Nat. Sci.,6, 1899, p. 280.?Girty, 19th Ann. Rep. U. S. Geol. Surv., 1899, p. 592.?Koken, Die Leitfossilien, 1896, pp. 100, 101, fig. 78, 2.?Uhich and Scofield,Geol. Minnesota, 3, pt. 2, 1897, pp. 853-914.?Pilsbry, Zittel-Eastman Textb.Pal., 1, 1900, p. 445.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 948.?Grabau and Shimer, N. A. Index Fossils, 3, 1909, p. 618.?Dall,Zittel-Eastman Textb. Pal., 2ed ed., 1913, p. 522.Bellerophon acutus Sowerby. See Oxydiscus acutus.Bellerophon allegoricus \Miite.Bellerophon allegoricus WTiite, Geogr. Geol. Expl. West. 100th Merid., Prel. Rep.,1874, p. 10; Rep. U. S. Geogr. Surv. West 100th Merid., 4, 1877, p. 55, pi. 3,fig. 6a-c.Middle Ordovician: Fish Spring, House Range, Utah.Cotypes?Cat. No. 8564, U.S.N.M.Bellerophon angustata Billings. See Tremanotus angustata.Bellerophon antiquatus Whitfield. See Owenella antiquata.Bellerophon Argo Billings. See Oxydiscus argo.Bellerophon anricnlatiis Hall.Bellerophon auriculatus Hall, Pal. New York, 2, 1852, p. 334, pi. 76, fig. 7a, b.?Emmons, Man. Geol., 1860, p. 108, fig. 98.Cayugan (Cobleskill) : Schoharie, New York.Bellerophon bidorsatus of authors. See Tetranota bidorsata.Bellerophon bilineatus Uhich.Bellerophon bilineatus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 917, pi. 64,figs. 19-21.Trenton (Flanagan): Near Danville, Kentucky.Holotype.?Cat. No. 45697, U.S.N.M.Bellerophon bilobatus Emmons. See Sinuites cancellatua.Bellerophon bilobatus var. acutus Hall. See Sinuites caucellatus acutus.Bellerophon bilobatus var. corrugatus Hall. See Sinuites cancellatus corru-gatus. BIBLIOGEAPHIC LIST OF GENEEA AND SPECIES. 115Bellerophon bretonensis Matthew.Bellerophon Bretonensis Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20,1902, p. 409, pi. 18, figs. 4a-d; Geol. Surv. Canada Rep. Cambrian Rocks,Cape Breton, 1903, p. 218, pi. 18, figs. 4a-d.Canadian (Bretonian-Div. C 3c.): McLeod Brook, near Boisdale, Cape Breton,Nova Scotia.Bellerophou calclfer Cleland.Bellerophon calcifer Cleland, Bull. Amer. Pal., 3, 1900, p. 126 (254), pi. 15, figs.15-18; 4, 1903, p. 18.Canadian (Tribes Hill): Fort Hunter and Canajoharie, New York.Bellerophon Canadensis Billings. See Salpingostoma canadensis.Bellerophon cancellatus Hall. See Sinuites cancellatus.Bellerophon capax Ulrich.Bellerophon capax Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 921, pi. 63, figs. 50,51; pi. 64, figs. 40-43.Maysville (Fairmount): Cincinnati, Oliio, and vicinity.Cotypes.?Cat. Nos. 45698, 45699, U.S.N.M.Bellerophon Cassinensis Whitfield. See Sinuites cassinensis.Bellerophon charon Billings.Bellerophon Charon Billings, Canadian Nat. Geol., 5, 1860, p. 169, figs. 14, 15;Geol. Canada, Geol. Surv. Canada, 1863, p. 146, fig. 97a, b.Black River (Leray): Pauquettes Rapids, Ottawa River, Canada.Bellerophon cincinnatiensis Miller and Faber.Bellerophon cincinnatiensis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist.,17, 1894, p. 29, pi. 1, figs. 23, 24.Maysville: Cincinnati, Ohio.Bellerophon clausus Ulrich.Bellerophon clausus Ulrich Geol. Minnesota, 3, pt. 2, 1897, p. 916, pi. 64, figa.7-10.?Hayes and Ulrich, U. S. Geol. Surv., Folio 95, 1903, illust. sheet,fig. 32-34.Trenton: Frankfort, Kentucky (Perryville), and near Nashville, Tennessee(Catheys).Cotypes.?Cat. Nos. 45700, 45701, U.S.N.M.Bellerophon consimills Savage.Bellerophon consimilis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 98, pi. 6,fig- 2.Upper Medinan (Edgewood): Alexander County, Illinois; Missouri.Bellerophon convolutus Eaton. Not recognized.Bellerophon convolutus Eaton, Geol. Textb., 2d ed., 1832, p. 28.Silurian(?): Helderberg, New York.Bellerophon declivis Conrad.Bellerophon declivis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 269,pi. 17, fig. 3.Trenton: Near Carlisle, Pennsylvania.Bellerophon dilatatus (Sowerby?) Billings.Bellerophon dilatatus (Sowerby?) Billings, Cat. Sil. Foss. Anticosti, Geol. Surv.Canada, 1866, p. 56 (loc. ref.).Anticostian (Gun River and Jupiter River): The Jumpers, Anticosti. 116 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bellerophon disculus Billings. See Oxydiscus disciilus.Bellerophon (Bucania) exigua Foerste. See Bucania exigua.Bellerophon expansus EmmonB. See Salpingostoma expansa.Bellerophon fiscello-striatus Foerste. See Bucaiiia fiecello-striata.Bellerophon fraternus Billings. See Salpingostoma fraternum.Bellerophon globularis Miller and Faber. See Siniiites globularis.Bellerophon gorbyi Miller.Belleroplion gorbyi Miller, 17th Ann. Bep. Dep. Geol. Nat. Res. Indiana, 1892,p. 694, pi. 14, figs. 7-9.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 953, pi. 39, figs. 1-lb.Maysville: Dearborn County, Indiana.Bellerophon helderbergiae Maynard.Bellerophon helderbergiae Maynard, Maryland Geol. Surv., Low. Dev., 1913, p.466, pi. 79, figs. 3, 4.Helderbergian (Keyser): Cash Valley, Maryland.Bellerophon insulae Matthew.Bellerophon insulae Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20, 1902, p.408, pi. 18, fig. 3; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton,1903, p. 217, pi. 18, fig. 3.Canadian (Bretonian?Div. C3c2): McLeod Brook, near Boisdale, Cape Breton,Nova Scotia.Bellerophon intextus Emmons. See Bucania intexta.Bellerophon lindsleyi Safford. See Bucania lindsleyi.Bellerophon lirata Hall.Bellerophon (Bucania) lirata Hall, Geol. Rep. Wisconsin, 1862, p. 55, figs. 7, 8.Richmond (Maquoketa): Southwestern Wisconsin.Bellerophon macer Billings. See Oxydiscus macer.Bellerophon miser Billings.Bellerophon miser Billings, Cat. Sil. Fossils Anticosti, Geol. Surv. Canada, 1866,p. 20.Richmond (English Head): Macasty Bay, Anticosti.Bellerophon mohri Miller.Bellerophon Mohri Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 306, fig. 30;N. A. Geol. Pal., 1889, p. 397, fig. 653.?Ulrich and Scofield, Geol. Minne-sota, 3, pt. 2, 1897, p. 920, pi. 64, figs. 44-45.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 954, pi. 39, figs. 2-2a.Richmond (WTiitewater) : Richmond, Indiana; Lincoln County, Kentuckj\Plcsiotypes?Cat. No. 45702, U.S.N.M.Bellerophon morrowensis Miller and Dyer. See Sinuites morrowenais.Bellerophon nashvillensis Troost.Bellerophon Nashvillensis Troost, 5th Geol. Rep. Tennessee, 1840, p. 54; 6th Rep.,1841, p. 175 (nom. nud.); 7th Rep., 1844, p. 17.Ordovician: Davidson County, Tennessee.Observation.?Not defined. Probably refers to the abundant Bellerophontroosti D'Orbigny. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 117Bellerophon nautarum Salter.Belleroplioii Nautarum Salter, Sutherland's Jour. Voyage in Baffins Bay, etc., 2,App., re52, p. ccxxiii, pi. 5, fig. 20.Niagaran: Dundas Island, Victoria Channel, Arctic America.Bellerophon (Bucania) opertus Foerste. See Bucania operta.Bellerophon Palinurus Billings. See Oxydiscus palinurus.Bellerophon patersoni Hall.Bellerophon patersoni Hall, Geol. Rep. Wisconsin, 1862, p. 55, fig. 9.Richmond (Maquoketa): Southwestern Wisconsin.Bellerophon (Bucania) perforatus Winchell and Marcy. See Tremanotus al-pheus.Bellerophon platystoma (Meek and Worthen).Bellerophon (Bucania?) platystoma Meek and Worthen, Geol. Sui-v. Illinois, 3,1868, p. 312, pi. 3, figs. 8a, b.Bellerophon platystoma Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.918, pi. 64, figs. 22-30.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.619, figs. 829d-g.Trenton: Galena and Dixon, Illinois (Galena); Kenyon, Wykoff^ etc., Minnesota(Pressor). ^Plenotypes.?Cat. Nos. 45703, 45704, U.S.N.M.Bellerophon profundus Emmons.Bellerophon profundus Emmons, Nat. Hist. New York Geol., 2, 1842, p. 393, fig.103; Amer. Geology, 1, pt. 2, 1855, p. 233, pi. 17, fig. 7.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 86, figs.Trenton: Watertown. New York.Bellerophon punctifrons Emmons. See Bucania punctifrons.Bellerophon recurvus Ulrich.Bellerophon recurvus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 920, pi. 64, figs.11-13.Maysville (Corryville) : Cincinnati, Ohio.Cotypes.?C&t. No. 45705, U.S.N.M.Bellerophon rogersensis Foerste.Bellerophon rogersensis Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 141,pi. 2, figs. 4a-c.Trenton (Upper): Near Rogers Gap, Kentucky.Bellerophon rotundatus Emmons. See Bucania sulcatina.Bellerophon rugosus Emmons.Bellerophon rugosus Emmons, Amer. Geology, 1, pt. 2, 1855, ]>. 166, fig. 37; Man.Geol., 1860, p. 103, fig. 93.?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2,1897, p. 853 (gen. ref.).Bucania rugosa Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 97, fig.Cincinnatian (Pulaski) : Lorraine, Jefferson County, New York.Bellerophon semlsculptus Matthew.Bellerophon semisculptus Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20,1902, p. 410, pi. 18, fig. 5; Geol. Surv. Canada, Rep. Cambrian Rocks CapeBreton, 1903, p. 219, pi. 18, fig. 5.Canadian (Bretonian?Div. C3c2): McLeod Brook, near Boisdale, Cape Breton,Nova Scotia. 118 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bellerophon shelbiensis Clarke and Ruedemann.Bucania stigmosa Wliiteaves (not Hall), Pal. Foss., Geol. Suxv. Canada, 3, pt. 1,1884, p. 34, pi. 5, fig. 3; pi. 8, fig. 4. ^Bellerophon shelbiensia Clarke and Ruedemann, Mem. New York State Mus., 5,1903, p. 51, pi. 5, figs. 13-19.Niagaran (Guelpli-Shelby) : Shelby, New York.Bellerophon similis Ulrich and Scofield.Bellerophon similis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 919,pi. 64, figs. 31-39.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 165.Trenton: Wykoff, Kenyon, etc., Minnesota (Prosser); Head of Frobisher Bay,Baffin Land.Cotypes.?Qd^t. Nos. 45706, 46707, U.S.N.M.Bellerophon solitarius Billings.Bellerophon solitarius Billings, Cat. Sil. Fossils, Anticosti, Geol. Surv. Canada,1866, p. 20.Richmond (English Head): McCasty Bay, Anticosti.Bellerophon subangularis Ulrich.Bellerophon subangularis Ulrich, Geol. Minnesota, 3, 1897, p. 920, pi. 64, figa.14_16.^-Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 954,pi. 39, figs. 3-3b.Richmond (Wliitewater) : Richmond, Indiana.Eolotype?Gat. No. 45708, U.S.N.M.Bellerophon subglobulus Ulrich.Bellerophon subglobulus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 917, pi. 64,figs. 17 and 18.Black River (Lowville): Mercer County, Kentucky.Eolotype?Cat. No. 45709, U.S.N.M.Bellerophon subovatus Cleland.Bellerophon subovatus Cleland, Bull. Amer. Pal., 3, 1909, p. 217 (255), pi. 15,figs. 19-21.Canadian (Tribes Hill): Near Fort Hunter, New York.Bellerophon sulcatinus of authors. See Bucania sulcatina. . Bellerophon trilobatus Hall. See Bucanella trilobata.Bellerophon troosti D'Orbigny.Bellerophon troosti D'Orbigny, Cephalopoda, 1840, p. 206.?Safford, Geol. Tennes-see, 1869, p. 289, pi. 3G, figs. 4a-4d.?Ulrich and Scofield, Geol. Minnesota,3, pt. 2, 1897, p. 915, pi. 64, figs. 1-5.?Grabau and Shimer, N. A. IndexFossils, 1, 1909, p. 618, fig. 829a-c.?Bassler, Bull. Geol. Surv. Virginia, 2a,1909, p. 183, fig. 20, 9, 10.Trenton: Nashville, Ilartsville, etc., Tennessee (Catheys) Danville; Frankfort,etc., Kentucky (Flanagan); Virginia.Plesiotypes.?Cat. Nos. 45710, 45711, U.S.N.M.Bellerophon troosti burgineusis Ulrich.Bellerophon troosti var. burginensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p.916, pi. 64, fig. 6.Trenton (Flanagan): Near Burgin and Danville, Kentucky.Eolotype.?Cat. No. 45712, U.S.N.M. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 119Bellerophon tuber Hall.Bellerophon txiber, Hall, 28tli Rep. New York State Mus. Nat. Hist., doc. ed.,1875, pi. 30, figs. 19, 20; mus. ed., 1879, p. 177, pi. 30, figs. 19, 20; 11th Ann.Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 320, pi. 31, figs. 19, 20; pi. 33,fig. 6.Niagaran (Waldron): Waldron, Indiana.Bellerophon volutiis Eaton. Not recognized.Bellerophon volutus Eaton, Geol. Textb., 1832, p. 28.Silurian: Helderberg region of New York.Bellerophon wisconsinensis Whitfield. See Tetranota wisconsinensis.BERENICEA Lamouroux. Genotype: Berenicea diluviaua Lamoimmx.Berenicea Lamouroux (part). Expos. Meth. des Genres d. Pol., 1821, p. 80. ? McCoy, Brit. Pal. Foss., 52, p. 44.?D'Orbigny, Pal. Franc. Terr. Cret., 5,1854, p. 858.?Haime, Bry. de la Form. Juras., 1854, p. 175.?Uhich, Jour.Cincinnati Soc. Nat. Hist., 5, 1882, p. 149.?Miller, N. A. Geol. Pal., 1889,p. 294.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 368; Geol. Minnesota, 3,1893, p. 120.?Zittel's Textb. Pal. (Engl, ed.), 1896, p. 261.?Simpson, 14thAnn. Rep. State Geol. New York for 1894, 1897, p. 594.?Nickles and Bassler,Bull. U. S. Geol. Surv., 173, 1900, p. 20.?Bassler, Bull. U. S. Geol. Surv.292, 1906, p. 16.?Hennig, Archiv. fur Zool., K. Sven. Vet.-Akad. Stock-holm, 3, No. 10, 1906, p. 25.?Grabau and Shimer, N. A. Index Fossils, I,1907, p. 119.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908,p. 741.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 319.Rosacilla Roemer, Verst. des Norddeutsh. Ivreidegeb., 1840, p. 19.Diastopora (not Lamouroux) D 'Orbigny, Busk and other English authors.Diastoporella Vine, Rep. Brit. Assoc. Adv. Sci., 52, 1883, p. 275; Rep. 53d Meet-ing Brit. Assoc. Adv. Sci., 1884, p. 187; Proc. Yorksliire Geol. Polyt. Soc,9, 1887, p. 190.Sagenella Hall, Amer. Jour. Sci. and Arts, 2d ser., 11, 1851, p. 401; Pal. New York,2, 1852, p. 172.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 171.?Miller, N. A.Geol. Pal., 1889, p. 321.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894,p. 8.?Simpson, 14th Ann. Rep. State Geol. New York, 1897, p. 597.Berenicea consimilis (Lonsdale).Aulopora consimilis Lonsdale, in Murchison's Sil. Syst., pt. 2, 1839, p. 675, pi. 15.Hall, Pal. New York, 2, 1852, p. 173, pi. 40E, figs. 8a, b.Diastopora consimilis Vine, Quart. Jour. Geol. Soc. London, 38, 1882, p. 58.Diastoporella consimilis Vine, Rep. 53d meeting British Assoc. Adv. Sci., 4,1883; Proc. Yorkshire Geol. and Polytech. Soc, 9, 1887, p. 190, pi. 12, figs.18-20.Berenicea consimilis Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 16, 17, pi. 5,figs. 1-5.Sagenella membranacea Hall, Pal. New York, 2, 1852, p. 172, pi. 40E, figs. 6a, b.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 181.Sagenella elegans Hall, 28th Rep. New York State Mus., doc ed., 1876, pi. 7,figs. 12, 13; Mus. ed., 1879, p. 118, pi. 7, figs. 12, 13; 11th Ann. Rep. IndianaGeol. Nat. Hist., 1882, p. 242, pi. 6, figs. 12, 13.?Lesley, Geol. Surv. Penn-sylvania, Rep. P 4, 1890, p. 917, figs.?Simpson, 14th Ann. Rep. State Geol.New York for 1894, 1897, pi. 20, fig. 4.?Nickles and Bassler, Bull. U. S. Geol.Surv., 173, 1900, p. 181.Silurian: Dudley and Shropshire, England (Wenlock); Island of Gotland;western New York and Ontario (Rochester); Osgood, Indiana (Osgood);Waldron, Indiana; and Newsom, Tennessee (Waldron).Plesiotypes?Cat. Nos. 35565, 44115, U.S.N.M. 120 BULLETIN m, UNITED STATES NATIONAL MUSEUM.Berenicea elegans Nickles and Bassler. See Berenicea consimilis.Berenicea membranacea Nickles and Bassler. See Berenicea consimilis.Berenicea minnesotensis Ulrich.Berenicea minnesotensis Uh-ich., 14lh Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, p. 58; Geol. Minnesota, 3, 1893, p. 120, pi. 1, figs, 25, 27, 29, pi. 2, fig. 1.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 595, figs.197, 198.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 119, fig. 178e.Proboscina minnesotensis Sardeson, Jour. Geol., 9, 1901, p. 1G9, fig. 2B.Black River (Decorah): Minneapolis, Minnesota, and vicinity.Cotypes.?Csit. No. 43269, U.S.N.M.Berenicea primitiva Ulrich.Berenicea primitiva Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 157, pi.6, fig. 4,?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.779, pi. 26, fig. 12.Maysville and Richmond: Cincinnati, Waynesville, Lebanon, Clarksville, etc.,Ohio; Richmond and Versailles, Indiana.Holotype.?Cat. No. 43268, U.S.N.M.Berenicea vesiculosa Ulrich.Berenicea vesiculosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 158,pi. 6, fig. 5.Eden: Cincinnati, Ohio, and vicinity.Eolotype.?Cat. No. 43267, U.S.N.M.BETRICHIA McCoy. Genotype: B. kloedeni McCoy.Beyrichia McCoy (part), Synop. Sil. Foss. Ireland, 1846, p. 57.?Bell and Forbes,in Burmeister's Org. Tril., London, Suppl. App., 1846, p. 124.?McCoy,Brit. Pal. Rocks and Foss., 1854, p. 135.?Jones, Ann. Mag. Nat. Hist., 2d ser.,16, 1855, p. 85.?Hall, Pal. New York, 3, 1859, p. 377.?Barrande, Syst. Sil.du Centre Bohme, 1, Suppl., 1872, p. 490.?Miller, Cincinnati Quart. Joiu-.Sci., 1, 1874, p. 118.?Zittel, Handb. Pal., 2, 1885, p. 553.?Renter, Zeits.d. d. Geol. Gesell., 37, 1885, p. 628.?Jones and Holl, Ann. Mag. Nat. Hist.,5th ser., 17, pp. 338, 345.?Jones and Kirkby, Proc. Geol. Assoc. (London), 9,1886, p. 505.?Verworn, Zeits. d. d. Geol. Gesell., 39, 1887, p. 27.?Krauss,ibid., 41, 1889, p. 17.?Miller, N. A. Geol. Pal., 1889, p. 534.?Vogdes,Annals New York Acad. Sci., 5, 1889, p. 8, pi. 2, figs. 19-21.?Ulrich, Geol.Minnesota, 3, pt. 2, 1894, p. 657.?Koken, Die Leitiossilien, Leipzig, 1896,p. 40, text fig. 26B, p. 431.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899,p. 306.?Ulrich, Zittel-Eastman Textb. Pal., 1, 1900, p. 644.?Uhich andBassler, Proc. U. S. Nat. Mus., 30, 1906, p. 151; 35, 1908, pp. 283, 284.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 355.?Bassler, Zittel-Eastman Textb., Pal., 2d ed., 1913, p. 738.Observation.?Most of the earlier references in the above bibliography are notto Beyiichia as now restricted.Beyrichia atlautica Billings.Beyrichia Atlantica Billings, Geol. Surv. Canada, Pal. Foss., 1, 1865, p. 300.Chazyan (Quebec?L, M): Point Rich and Table Head, Newfoundland.Beyrichia barretti Waller. See Klcedenia barretti.Beyrichia bella Walcott.Beyrichia bella Walcott, Desc. new Spec. Trenton Group, 1883, p. 7, pi. 17, fig.11; 35th Rep. New York State Mus. Nat. Hist., 1884, p. 213, pi. 17, figs. 11,11a.Trenton: Trenton Falls, New York. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 121Beyrichia bicornis Miller. See Dicranella bicoruis.Beyrichia buchiana Jones. See BoUia persulcata.Beyrichia chambersi Miller. See Ceratopsis chambersi.Beyrichia chambersi var. robusta Ulrich. See Ceratopsis robusta.Beyrichia ciliata Emmons. See Ctenobolbina ciliata.Beyrichia cincinnatiensis Miller. See Pi-imitia cincinnatiensis.Beyrichia clarkei Jones. See Kloedenella clarkei.Beyrichia clathrata Jones.Beyrichia clathrata Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 242, pi. 9,fig. 1.Niagaran: Beechey Island, Arctic America.Beyrichia clavigera Jones. See Isochilina? clavigera.Beyrichia clavigera clavifracta Jones. See Isochilina? clavigera clavifracta.Beyrichia deckerensis Weller. See Kloedenia manliensis deckerensis.Beyrichia decora Billings. See Beyrichia venusta.Beyrichia difflsa Jones.Beyiichia diffisa Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 546, pi. 21,fig. 7.Anticostian (Jupiter River): Jupiter River, Anticosti.Beyrichia duryi Miller. See Ctenobolbina duryi.Beyrichia equilatera Hall.Beyrichia equilatera Hall, Canadian Nat. Geol., 5, 1860, p. 158, fig. 20.?Dawson,Acadian Geol., 2d ed., 1868, p. 609, fig. 217.?Jones, Quart. Jour. Geol. Soc.London, 46, 1890, p. 18, pi. 2, fig. 6; p. 552; Geol. Sur\'. Canada, Contr. Micro-Pal., pt. 3, 1891, p. 72, pi. 11, fig. 6.Silurian: Arisaig, Nova Scotia.Beyrichia forbesi Jones.Beyrichia Forbesii Jones, Quart. Jour. Geol. Soc. London, 17, 1861, p. 67, pi. 4,figs. 13a-c.Silurian: Mount Illampu, Bolivia.Beyrichia granulosa Hall.Beyrichia granulosa Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1877, pi. 32, fig. 4; mus. ed., 1879, p. 186, pi. 32, fig. 4; 11th Ann. Rep. IndianaDep. Geol. Nat. Hist., 1882, p. 331, pi. 34, fig. 4.?Ub-ich and Bassler, Proc.U. S. Nat. Mus., 35, 1908, pi. 37, fig. 15.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 355, fig. 1663a.Niagaran (Waldron) : Waldron, Indiana.Beyrichia halli Jones. See Kloedenella halU.Beyrichia hammelli Miller and Faber. See Ctenobolbina hammelliBeyrichia initiaus Ulrich. See Kloedenia initialis.Beyrichia jerseyensis Weller. See Kloedenia jerseyeneisBeyrichia kummeli Weller. See Kloedenia kununeli. 122 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Beyrichia lata (Vanuxem).Agnostus latus Vanuxem, Geol. New York, 3d Geol. Dist., 1842, p. 80.Beyrichia lata Hall (part), Pal. New York, 2, 1852, p. 301, pi. A 66, figs. lOc-e.(Notb=Bollia lata.)?Jones, Ann. Mag. Nat. Hist., 2d ser., 16, 1855, p. 168,pi. 6, fig. 13.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 90,figs.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 292, fig. 25.Clinton: New York, Pennsylvania, Maryland, etc.Plesiotype.?Cat. No. 41557, U.S.N.M.Beyrichia lata triplicata Foerste.Beyrichia lata-triplicata Foerste, Bull. Geol. Sui-v. Kentucky, 7, 1906, p. 329;Jour. Cincinnati Soc. Nat. Hist., 21, 1909, pi. 1, fig. 4.Clinton (Alger) : Lewis County, Kentucky.Beyrichia Logani Jones. See Primitia logani.Beyrichia Logani var. leperditioides Jones. See Primitia logani leperditioides.Beyrichia Logani var. renipormis Jones. See Primitia logani reniformis.Beyrichia manliensis Miller. See Klcedenia manliensis.Beyrichia marginata Mller. See Dicranella marginata.Beyrichia montaguensis Weller. See Klcedenia montaguensia.Beyrichia moodeyi Ulrich and Bassler.Beyrichia moodeyi Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 285,pi. 37, fig. 8.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 355, fig.1663d.Cayugan (Mackenzie) : Near Cacapon, West Virginia.Cotypes.?Cat. No. 53936, U.S.N.M.Beyrichia nearpassi Weller. See Klcedenia nearpassi.Beyrichia Noetlingi Reuter. See Beyrichia tuberculata noetlingi.Beyrichia notata Hall. See Klcedenia notata.Beyrichia not.\ta var. ventricosa Hall. See Klcedenia notata ventricosa.Beyrichia ocxilipera Miller. See Ceratopsis oculifera.Beyrichia parallela (Ulrich).Primitia? (?Beyrichia) parallela Ubich, Geol. Surv. Canada, Contr. Micro-Pal.,pt. 2, 1889, p. 51, pi. 9, figs. 7, 7a.Beyrichia (?Primitia) parallela Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890,p. 125, pi. 10, fig. 15a-c.Beyrichia parallela Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 319,fig. 64.Richmond: Stony Mountain, Manito])a (Stony Mountain); Richmond, Indiana;Oxford, Ohio (Whitewater); Anticosti (Charleton).Plesiotype.?Cat. No. 41434, U.S.N.M.Beyrichia perinplata Weller. See Klcedenia sussexensis.BEYRicmA PERSULC.\TA Ulrich. See Bollia persulcata.Beyrichia plagosa Jones.Beyrichia plagosa Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 243, pi. 9, fig. 2.Niagaran: Beechey Island, Arctic America. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 123Beyrichia pustulosa Hall.Beyrichia pustulosa Hall, Canadian Nat. Geol., 5, 18G0, j). 157, fig. 19.?Dawson,Acadian Geol., 2d ed., 1868, p. 608, fig. 216.Beyrichia tuberculata var. pustulosa Jones, Quart. Jour. Geol. Soc. London, 46,1890, p. 18, pi. 2, fig. la-c; Geol. Surv. Canada, Contr. Micro-Pal., pt. 3,1891, p. 76, pi. 11, fig. 2.Silurian : Arisaig, Nova Scotia.Beyrichia quadrifida Jones. See Ceratopsis? quadrifida.Beyrichia quadrhirata Hall and Whitfield. See TetradeUa quadrilirata.Beyrichia reguxaris Emmons. See Bollia regiilaris.Beyrichia regularis Miller. See TetradeUa quadrilirata.Beyrichia richardsoni Miller. See Drepanella richardsoni.Beyrichia rugulitera Jones. See Primitia ruguUfera.Beyrichia sigillata Jones. See Primitia sigillata.Beyrichia simplex Miller. See Dicranella? simplex.Beyrichia simplex Emmons. Not recognized.Beyricliia simplex Emmons (not Jones, 1853), Amer. Geology, 1, pt. 2, 1855, p. 218,fig. 74a.?Lesley, Geol. Surv. Pennsylvania, Rej). P 4, 1889, p. 91, fig.Blue limestone: Ohio.Beyrichia smocki Weller. See Kloedenia smocki.Beyrichia spinosa Hall. See .^Echmina spinosa.Beyrichia spinosa Miller. See Dicranella spinosa.Beyrichia striato-marginatus Miller. See Eurychilina? striatomarginata.Beyrichia sussexensis Weller. See Kloedenia sussexensis.Beyrichia symmetrica Hall. See Kloedenella symmetrica.Beyrichia symmetrica Emerson. See Drepanella symmetrica.Beyrichia trisulcata Hall. See Kloedenella trisulcata.Beyrichia tuberculata (Kloeden).Battus tuberculatus Kloeden (part), Verstein. der Mark Brandenburg, 1834, p.115-117, pi. 1, figs. 21-23.Agnostus tuberculatus Quenstedt, Petrefactenkunde, 1852, p. 302, pi. 23, figs.25-28.Beyrichia tuberculata Boll, Palaeontographica, 1, 1847, p. 127; Archiv des Vereinsder Freunde der Naturgeschichte in Meklenburg, 16 Jahr., 1862, p. 119, pi. 1,figs, la^ b.?Bronn and Roemer, Lethoea geog., 1, 1854, p. 536, pi. 10, figs.9a-d.?Jones, Ann. Mag. Nat. Hist., 2d ser., 16, 1855, p. 86, pi. 5, figs. 4-9b;Proc. Geol. Soc, Pal. Div. Entom., 1869, p. 12, figs. 12a-c; Geol. Mag., dec. 2,3, 1881, p. 344, pi. 10, figs. 8-10; Ann. Mag. Nat. Hist., 6th ser., 1, 1888, p. 402,pi. 21, fig. 12.?Roemer, Lethaea palseozoica, 1876, pi. 19, figs. 9a-d.?Krause,Zeitschr. d. d. geol. Gesell., 29, 1877, p. 30, pi. 1, figs. 12a, b.?Hoemes,Palaeontologie, 1884, p. 379, figs. 525c, d.?Renter, Zeits. d. d. geol. Ges., 37,1885, p. 632, pi. 25, figs, la, b.?Zittel, Handb. Pal., 2, 1885, p. 553, figs. 739,740.?Verworn, Zeitschr. d. d. geol. Gesell., 1887, p. 31, pi. 3, fig. 12.?Jones,Contr. Micro-Pal., Geol. Surv. Canada, 3, 1891, p. 74, pi. 2, fig. 3,Silurian: Europe; Stonehouse Brook, Arisaig, Nova Scotia. 124 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Beyrichia tuberculata noetlingi (Reuter).Beyrichia Noetlingi Reuter, Zeita. d. d. geol. Gesell., 37, 1885, p. 637, ])1. 25,figs. 5a, 5b.Beyrichia tuberculata var. noetluigiJones,Contr. Micro. Pal. Geol. Surv. ( anada, 3,1891, p. 78, pi. 11, figs. 4a, b, 5.Silurian: Europe; Stonehouse Brook, Arisaig, Nova Scotia.Beyrichia tuberculata var. pustulosa Jones. See Beyrichia pustulosa.Beyrichia tuberculata strictispiralis Jones.Beyrichia tuberculata var. strictispiralis Jones, Cent. Micro-Pal., Geol. Surv.Canada, pt. 3, 1891, p. 77, pi. 11, fig. 1.Silurian: Arisaig, Nova Scotia.Beyrichia tumlda (Ulrich).Ctenobolbuia tumida Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 11,pi. 7, figs. 5a-5b.Beyrichia tumida Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 285; p.292, fig. 24; p. 294, fig. 33.Richmond (lower): McKinneys and Moreland, Kentucky.Eolotype and plesiotype.?Gat. Nos. 41326, 41327, U.S.N.M.Beyrichia tumiprons Hall. See Ctenobolbina ciliata.Beyrichia venusta Billings.Beyrichia venusta Billings, Geol. Surv. Canada, Cat. Sil. Foss. Anticosti, 1866,p. 68.Beyrichia decora Billings, ibid., p. 67.Anticostian (Jupiter River): East Point, Chaloupe River, Jumpers, etc., Apti-costi.Observation.?B. decora was based on the female form of B. venusta.Beyrichia waldronensis Ulrich and Bassler.Beyrichia waldronensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p.286, pi. 27, figs. 9, 10.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 355, fig. 1663b, c.Niagaran (AValdron): Waldron, Indiana.Cotypes?Cat. No. 41660, U.S.N.M.Beyrichia wallpackensis Weller. See Kloedenia wallpackensis.BILLINGSELLA Hall and Clarke. Genotype: Orthis coloradoensis Shumard.Kutorgina Hall and Clarke (not Walcott), Pal. New York, 8, pt. 1, 1892, pp. 90-94.Billingsella Hall and Clarke, 11th Ann. Rep. State Geol. New York, 1892, p. 273;45th Ann. Rep. New York State Mus., 1892, p. 589; Pal. New York, 8, pt. 1,1892, pp. 230-231.?Schuchert (part). Bull. U. S. Geol. Surv., 87, 1892, p.158.?Walcott (part), Proc. U. S. Nat. Mus., 28, 1905, pp. 227-229.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 210.?Walcott, Smiths. Misc.Coll., 53, 1908, pp. 142 and 148, pi. 11; Mon. U. S. Geol. Surv., 51, 1912, p.749.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 380.Billingsella coloradoensis (Shumard).Orthis coloradoensis Shumard, Trans. Acad. Sci. St. Louis, 1, 1860, p. 627.Orthis pepina Hall, 16th Ann. Rep. New York State Cab. is[at. Hist., 1863, pp.134-135, pi. 6, figs. 23-27.?^^^litfield, Geol. Wisconsin, 4, pt. 3, 1882, pp.170-171, pi. 1, figs. 4, 5.Orthis? (Orthisina?) pepina Hall, 2d Ann. Rep. State Geol. New York, 1883, pi.8, figs. 1, 2. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 125BiUingsella coloradoensis?Continued.Orthis (Billingsella) pepina Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896,p. 96.Billingsella pepina Hall and Clarke, Pal. New York, 8, pt. ], 1892, \\ 230, pi. 7,figs. 16-19; pi. 7a, figs. 7-9.Billingsella coloradoensis Walcott, Mon. U. S. Geol. Surv., 32, pt. 2, 1899, pp.450^51, pi. 61, figs. 1, la-d; Proc. U. S. Nat. Mus., 28, 1905, pp. 231-234.?Grabau and Shinier, N. A. Index Fossils, 1, 1907, p. 210.?Walcott, Mon.U. S. Geol. Surv., 51, 1912, pp. 299, 751, fig. 6, pi. 85, figs. 1, la-z.Ozarkian (Oneota): Stillwater, Washington County, Minnesota. Middle andUpper Cambrian of Montana, Texas, Wisconsin, etc.Plenotypes.?Cat. Nos. 34774, 34776, U.S.N.M.Billingsella dice Walcott.Billingsella dice Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 234; Mon. U. S.Geol. Surv., 51, 1912, p. 754.Lower Ordovician (drift bowlder of sandstone): St. Al):)ans, Franklin County,Vermont.Holotype and paratypes.?Cat. No. 52248, U.S.N.M.Billingsella(?) grandaeva (Billings).Orthisina gi'andseva Billings, Canadian Nat. Geol., 4, 1859, p. 349, fig. 1; Geol.Canada, 1863, p. 113, fig. 21.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, p.540, fig.Canadian (Romaine): Mingan Islands, Canada.Observation.^?See Orthis piger for a possible synonym.Billingsella laurentina Hall and Clarke. See Orthis(?) laurentina.Billingsella pepina Hall and Clarke. See Billingsella coloradoensis.Billingsella(?) primordialis (\\Tiitfield).Streptorhynchus? primordiale ^\^litfield, Bull. Amer. Mus. Nat. Hist., 1, 1886.p. 301, pi. 24, fig. 7.?Lesley, Geol. Sm-v. Pennsylvania, Rep., P 4, 1890, p.1096, fig.?Seely, Rep. State Geol. Vermont, 7, 1910, pi. 52, fig. 7.Canadian (Beekmantown): Fort Cassin, Vermont.BiLLiNGSiA Ford. See Elkania Ford.BiLLiNGSiA Walcott. See Matherella Walcott.BiLLiNGSiA PRETiosA Ford. See Acrothele pretiosa.BiLLiNGSiA 8ARATOGENSIS Walcott. See Matherella saratogensis.BILLINGSITES Hyatt. Genotype: Ascoceras canadense Billings.Billingsites Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 278.?Zittel, Handb.Pal., 2, 1884, p. 373.?Hyatt, Zittel-Eastman, Textb. Pal., 1, 1900, p. 516;2ded., 1913, p. 597.Billingsites canadensis (Billings).Ascoceras Canadense Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857,p. 310; Geol. Canada, Geol. Surv. Canada, 1863, p. 218, fig. 227; Cat. Sil.Foss. Anticosti, Geol. Surv. Canada, 1866, p. 23 (loc. ref.).?Miller, N. A.Geol. Pal., 1889, p. 432, fig. 726.Billingsites canadense Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 278(gen. ref.).Richmond (English Head and Charleton): English Head, etc., Anticosti. 126 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.BILOBITES Linnaeus. Genotype: Anomia biloba Linnaeus.Bilobites Linnaeus, Syst. Naturae, ed. Muller, 6, 1775, p. 325.?Zittel, Handb.PaL, 1, Munich, 1880, p. 674.?Natborst, KongL Sven. Vet.-Akad. Handl.,18, No. 7, 1881, pp. 38, 87.?Waagen, Mem. GeoL Surv. India, PaL Indica,13tb ser., 1, 1884, p. 549.?Hall, Bull. GeoL Soc. Amer., 1, 1889, p. 21.?Dawson, Quart. Jour. GeoL Soc. London, 46, 1890, p. 595.?Beecher, Amer.Jour. Sci., 3d ser., 42, 1891, p. 51; 44, 1892, p. 152.?Hall and Clarke, Pal.New York, 8, pt. 1, 1892, pp. 204, 223;. 11th Ann. Rep. New York State Geol.,1894, p. 269.?Koken, Die Leitfossilien, Leipzig, 1896, p. 234.?Cumings,Amer. Jour. Sci., 4th ser., 1903, p. 40.?Grabau and Shimer, N. A. IndexFossils, 1, 1907, p. 259.Diccelosia King, Mon. Permian Fossils England, Pal. Soc, 1850, p. 106.Bilobites acutilobus (Ringueberg).Orthis acutiloba Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 134,pi. 7, fig. 5.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 507, figs.Bilobites acutilobus Beecher, Amer. Jour. Sci., 3d ser. 42, 1891, p. 52, pi. 1, fig. 1.Clinton (Rochester): Lockport, New York.Bilobites bilobus (Linnaeus).Anomia biloba Linnaeus, Systema Naturae, ed. 12, 1767, p. 1154.Delthyris sinuatus Hall, Geol. New York, Rep. 4th Dist., 1843, p. 105, fig. 8.?Owen (Hall), Amer. Jour. Sci. Arts, 48, 1845, p. 313, fig. 8.Spirifer bilobus Hall, Amer. Jour. Sci., 2d ser., 20, 1849, p. 228; Pal. New York,4, 1852, p. 260, pi. 54, fig. 1.Orthis biloba Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 85.?Davidson, Mon. British Sil. Brach., Pal. Soc, 1869, p. 206, pi. 26, figs. 10-15.?Safford, Geol. Tennessee, 1869, p. 315, fig. 10.?Hall, 11th Rep. StateGeoL Indiana, 1882, p. 286, pi. 27, fig. 16.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 510, fig.Bilobites bilobus Beecher, Amer. Jour. Sci., 3d ser., 42, 1891, p. 52, pi. 1, fig. 28.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 190, 204, 205, 223, pi.5B, figs. 11-14.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 259.Niagaran: Lockport, etc.. New York; Ontario (Rochester); Waldron, Indiana,and Newsom, Tennessee (Waldron).Anticostian (Gun River and Jupiter River): Anticosti.BISTRAMIA Hoek. Genotype: B. elegansHoek.Bistramia Hoek, Neues Jahrb. Min., Geol., Pal., 34, 1912, p. 247.Bistramia elegans Hoek.Bistramia elegans Hoek, Neues Jahrb. Min., Geol., Pal., 34, 1912, p. 247, pi. 8,figs. 12, 13.Ordovician: Totorapampa, BoUvia.BLASTOIDOCRINUS Billings. Genotype: B. cai-chariaedens Billings.Blastoidocrinus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 18.?Chapman,Canadian Jour., n. s., 6, 1861, p. 514, footnote; Expos. Min. Geol. Canada,1864, p. 108.?Zittel, Handb. Pal., 1, 1879, p. 423.?Etheridge ajid Carpenter,Ann. Mag. Nat. Hist., 5th ser., 9, 1882, p. 214, footnote.?Miller, N. A. Geol.Pal., 1889, p. 229.?Jaekel, Stammesgeschichte d. Pelmatozoen, 1, Thecoideau. Cystoidea, Berlin, 1899, p. 389.?Bather, Rep. Mus. Assoc, 1900, p. 103;Treatise on ZooL, pt. 3, Echinoderma 1900, p. 80, fig. 3.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 477.?Hudson, Bull. New York State Mus.,149, 1911, p. 203.?Springer, Zittel-Eastman Textb. Pal., 2ded., 1913, p. 167. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 127Blastoidocrinus carchariaedens Billings.Blastoidocrinus carchariaedens Billings, Can. Org. Rem., dec. 4, Geol. Surv.Canada, 1859, p. 18, pi. 1, figs, la-n; fig. 6, p. 20.?Bather, Treatise on Zool.,pt. 3, Echinoderma, London, 1900, p. 81, fig. 3, i, 2.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 478, fig. 1787.Blastoidocrinus carcharidens Miller, N. A. Geol. Pal., 1889, p. 229, text fig. 257.?Hudson, Bull. New York State Mus., 107, 1907, p. 97, figs. 1, 2; pis. 1-7; p. 149,1911, pis. 1-4.Chazyan: Caughnawaga, Islands of Montreal, Jesus, and Bizard, Canada; Val-cour Island, New York (Valcour).BLASTOPHTCUS Miller and Dyer. Genotype: B. diadematum Miller and Dyer.Blastophycus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 24. ? Miller, N. A. Geol. Pal., 1889, p. 109.Blastophycus diadematum Miller and Dyer.Blastophycus diadematum Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1,1878, p. 24, pi. 1, figs. 1, 2.?Miller, N. A. Geol. Pal., 1889, p. 109, fig. 17.Eden (Economy): Cincinnati, Ohio, and vicinity.BLOTHROPHTLLUM Billings. Genotype: B. decorticatum Billings.Blotlirophyllum Billings, Canadian Jour., n. s., 4, 1859, p. 129.?Nicholson, Cana-dian Nat., n. s., 7, 1874, p. 139; Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 18.?Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 112.?Miller, N. A. Geol.Pal., 1889, p. 174.?Sherzer, Amer. Geol., 7, 1891, pp. 284-289.?Lambe,Contr. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 171.Blothrophyllum caespitosum Rominger.Blothrophyllum caespitosum Rominger, Geol. Surv. Michigan, ?, pt. 2, 1876, p.114, pi. 42.Niagaran: Point Detour, Micliigan.Blothrophyllum cinctosum Greene.Blothrophyllum cinctosum Greene, Contr. Indiana Pal., 2, pt. 2, 1906, p. 34, pi.7, figs. 7, 8.Niagaran (Louisville): Near Louisville, Kentucky.Blothrophyllum niagarense Da\-is.Blotlirophyllum niagarense Davis, Kentucky Fossil Corals, Geol. Surv. Ken-tucky, pt. 2, 1885, pi. 99, fig. 10.Niagaran (Louisville): Near Louisville, Kentucky.Blumenbachium Roemer. See Astrseospongia Roemer.Blumenbachium meniscus Roemer. See Astraeospongia meniscus.BODMANIA Miller and Faber. Genotype: B. insuetum Miller and Faber.Bodmania Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 22.Miller, N. A. Geol. Pal., 2d App., 1897, p. 780.Observation.?Probably the same as Cyrtodonta.Bodmania insuetum Miller and Faber.Bodmania insuetum Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894,p. 23, pi. 1, figs. 5-7.Richmond (Whitewater): Richmond, Indiana.Bodmania ventricosa Miller and Faber. See Whitella ventricosa. 128 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.BOLBOCEPHALUS Whitfield. Genotype: Bathyiuusseelyi Whitfield.Bolbocephalus WTiitfield, Bull. Amer. Mus. Nat. Hist., 2, 1890, p. 36.?Miller,N. A. Geol. Pal., Lst App., 1892, p. 705.Bolbocephalus seelyi (Whitfield).Bathyiirus? Seelyi ^Vhitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 339, pi.33, fig. 12-18.Bolbocephalus Seelyi Whitfield, Bull. Amer. Mus. Nat. Hist., 3, 1890, pi. 3,figs. 1-8.?Seely, Rep. State Geol. Vermont, 7, 1910, pi. 57, figs. 1-3.Canadian (Beekmantown) : Fort Cassin, Vermont, and Beekmantown, New York.Bolbocephalus? truncatus Wliitfield.Bolbocephalus? tmncatus Wliitfield, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 37,pi. 2, figs. 6-8.Canadian (Beekmantown) : Fort Cassin, Vermont.BOLBOPORITES Pander. Genotype: B. mitralis Pander.Bolboporites Pander, BeitragzurGeognosie Russlands, 1830, p. 106.?Edwards andHaime, Mon. d. Polyp. Foss. Terr. Pal., 1851 (Arch. du. Mus. d'HLst. Nat., 5),p. 246.?Eichwald, Leth. Rossica, 1, sect. 1, 1860, p. 495.?Miller, N. A.Geol. Pal., 1889, p. 174.Bolboporites americanus Billings.Bolboporites americanus Billings, Canadian Nat. Geol., 4, 1859, p. 429, figs. 3-6;Geol. Surv. Canada, 1863, p. 124, fig. 124a-d.?Chapman, Canadian Jour.,n. 8., 8, 1863, p. 195, fig. 165b; Expos. Min. Geol. Canada, 1864, p. 167, fig.165b.?Miller, N. A. Geol. Pal., 1889, p. 174, fig. 140.?Ruedemann, Bull.New York State Mus., 49, 1901, p. 11, pi. 1, fig. 1.Chazyan: Montreal and Mingan Islands, Canada; New York; Rysedorph Hill,Rensselaer County, New York (Rysedorph).BOLIVIANA Salter. Genotype: B. melocactus Salter.Boliviana Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71.Boliviana bipennis Salter.Boliviana bipennis Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 72, pi. 5,fig. 11.Ordovician(?): Valley of Unduavi, Bolivia.Boliviana melocactus Salter.Boliviana melocactus Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71, pi.5, fig. 9.Ordovician(?): Valley of Aceromarka, Bolivia.Boliviana proboscidea Salter.Boliviana proboscidea Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71,pi. 5, fig. 10.Ordovician(?): Valley of Aceromarka, Bolivia.BOLLIA Jones and Holl. Genotype: B. bicollina Jones and Holl.BoUia Jones and Holl, Ann. Mag. Nat. Hist., 5th ser., 17, 1886, p. 360.?Krause,Zeits. d. d. geol. Gesell., 41, 1889, p. 13.?Miller, N. A. Geol. Pal., 1st App.,1892, p. 705.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 668.?Koken, DieLeitfossilien, Leipzig, 1896, p. 40, fig. 26D.?LUrich, Zittel-Eastman Textb.Pal., 1, 1900, p. 644.?Grabau, Bull. New York State Mus., 45, 9, 1901, p. 219.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 219.?Bonnema, Mitt. Min.Geol. Inst. Groningen, 2, 1909, p. 57.^?Grabau and Shinier, N. A. IndexFossils, 2, 1910, p. 351.?Bassler. Zittel-Eastman Textb. Pal., 2d ed., 1913,p. 738. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 129]>OLLiA CLARKEi Uliich. See Kloedenella clarkei.Bollia cornucopisB Ruedemann,Bollia cornucopise Ruedemann, Bull. New York State Mus., 4!), 1901, p. 82, pi.G, figs. 1, 2.Mohawkian (Ryeedorph) : Rysedorph Hill, Rensselaer County, New York.Bollia halli Ulrich. See Kloedenella halli.Bollia lata Jones.Beyrichia lata Hall (part), Pal. New York, 2, 1852, p. 301, pi. A 66, fig. 10b (notfigs. 10c-e=Beyriclua lata).Bollia lata Jones, Amer. Geol., 4, 1889, p. 339.?Grabau and Sldnier N. A. IndexFossils 2, 1910, p. 352.Clinton: New York, Pennsylvania, Maryland, etc.Bollia lata braslliensis Clarke.Bollia lata var. braslliensis Clarke, Archivos. Mus. Nac. Rio do Janeiro, 10,author's Eng. ed., 1900, p. 22, pi. 2, figs. 30, 31?Katzer, Grundz. d. Geol. d.unt. Amazonas, Leipzig, 1903, pi. 16, fig. 18a, b.Silurian: Rio Trombetas, Brazil.Bollia persulcata (Ulrich).Beyrichia persulcata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 12, pi.7, fig. 6.Bollia persulcata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 116, figa.3a-d.Beyrichia buchiana Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 16, pi. 3,fig. 25.Eden, Maysville, and Richmond: Cincinnati, Ohio, and vicinity.Holotype.?Gsit. No. 41524, U.S.N.M.Bollia pumila Ulrich.Bollia pumila Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 117, pi. 12,figs, la, lb.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908,p. 1042, pi. 53, figs. 12, 12a.?Grabau and Shinier, N. A. Index Fossils, 2,1910, p. 351, figs. 1660z, z'.Richmond (Wayncsvillc) : Weisberg, etc., Indiana; Waynesville, etc., Ohio.Eolotype.?Q&t. No. 41691, U.S.N.M.Bollia regularis (Emmons).Beyrichia regularis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 219, fig. 74b. ? Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 91, fig.Bollia regularis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 669 (gen. ref.).?Ulrichand Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 288, figs. 12-14.Richmond (Arnheim): Waynesville, etc., Ohio; Indiana; Kentucky.Flesiolypcs.?Cat. No. 41516, U.S.N.M.Bollia scnillunata Jones.Bollia semilunata Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 548, pi. 21,figs. 9, a, b.Richmond (Charleton and English Head): South of Junction Cliff, etc. Anti-costi . Bollia subaequata Ulrich.Bollia subicquata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 669, pi. 46, figs. 26-29.Trenton (Prosser): Cannon Falls, St. Paul, etc., Minnesota,Cotypes.?Cat. Nos. 41519, 41520, U.S.N.M.84243??Bull. 92?15 9 130 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.BoLLiA SYMMETRICA of authors. See Kloedenella symmetrica.BoLLiA TYPA Miller. See Dilobella typa.Bollia unguloidea Ulrich.Bollia unguloidea Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 669, pi. 46, figs.23-25.?Grabau and Rhimer, N. A. Index Fossils, 2, 1910, p. 351, fig. 1658,10, 10'.Trenton (Prosser) : Goodhue County, Minnesota.BOREASTER Lambe. Genotype: B. lowi Lambe.Boreaster Lambe, Cruise of the Neptune in 1903-4, App. 4, 1906, p. 323.Boreaster lowi Lambe.Boreaster lowi Lambe, Cruise of the " Neptune" in 1903-4, App. 4, 1906, p. 323.Niagaran: Beechy Island, Lancaster Sound, Arctic America.BoTRYOCRiNiTES of authors. See Botryocrinus Angelin.BOTRYOCRINUS Angelin. Genotype: B. ramossissimus Angelin.Botryocrinus Angelin, Icon. Crin. Suec, 1878, 24, pi. 20, fig. 8; pi. 23, fig. 14.?Zittel, Handb. Pal., 1, 1879, p. 352.?Wachsmuth and Springer, Proc. Acad.Nat. Sci. Philadelphia, 1879, p. 320 (Rev. Pal., pt. 1, p. 97); ibid., 1886, pp.112, 115, 148 (Rev. Pal., pt. 3, sec. 2, pp. 188, 191, 224); ibid., 1890, p. 380.?Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 324, pi. 14, fig. 30; pi. 15,figs. 9, 13; 7, 1891, p. 392; Kongl. Sv. Vet.-Akad. Handl., 25, No. 2, 1893,p. 116, pi. 5, fig. 160; pi. 6, fig. 193; Nat. Science, 12, 1898, p. 342.?Weller,Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 65, fig. 34.?Bather, Treatise onZool. (Lankester), pt. 3, 1900, p. 179, fig. 97.?Springer,Amer. Geol., 26, 1900, p. 133.?Bather, ibid., p. 308.?Wachsmuth, Zittel-Eastman Textb.. Pal., 1, 1900, p. 157.?Zittel, Grundzuge Pal., 1, 1910, p.154.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 506.Botryocrinites Bather, Kongl. Sv. Vet.-Akad. Handl., 25, No. 2, 1893, pp. 114,119, fig. 17.Sicyocrinus Angelin, Icon. Crin. Suec, 1879, p. 23, pi. 4, fig. 9; pi. 16, fig. 5. ? Wachsmuth and Springer, Rev. Pal., 1, 1879, pp. 62, 99.?Zittel, Handb.Pal., 1, 1879, p. 352.Botryocrinus nucleus (Hall).Dendrocrinus nucleus Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1877, pi. 15, figs. 7-9.Cyathocrinus nucleus Hall, ibid., mus. ed., 1879, p. 136, pi. 15, figs. 7-9; 11thAnn. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 265, pi. 14, figs. 7-9.Homocrinus nucleus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel-phia, 1886, p. 144 (Rev. Pal., 3, sec. 2, p. 220).Botryocrinus nucleus Bather, Crinoidea Gotland, 1893, p. 104.Niagaran (Waldron): Waldroii, Indiana.Botryocrinus polyxo (Hall).Cyathocrinus polyxo Hall, Trans. Albany Institute, 4, 1863, p. 199; 28th Rep.New York State Mus. Nat. Hist., doc. od., 1875, pi. 15, figs. 10-17; mus. ed.,p. 135, pi. 15, figs. 10-17.?Wachsmuth and Springer, Proc. Acad. Nat. Sci.Philadelphia, 1879, p. 310 (Rev. Pal., 1, p. 87).?Hall, 11th Ann. Rep. IndianaDep. Geol. Nat. Hist., 1882, p. 264, pl.-14, figs. 10-17.Homocrinus polyxo Wachsmuth and Springer, Proc. Acad. Nat. Sci, Philadelphia,1886, p. 144 (Rev. Pal., pt. 1, p. 87). BIBLIOGKAPHIC LIST OF GENEKA AND SPECIES. 131Botryocriuus polyxo?Continued.Botryocrinus polyxo Bather, Crin. Gotland, 1893, p. 105.?Weller, Bull. ChicagoAcad Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 66, pi. 14, f\cr. 12.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 506.Niagaran: Waldron, Indiana (Waldron); Bridgeport, Illinois (Racine).BRACHIOSPONGIA Marsh. Genotype: Scyphia digitata Owen.Brachiospongia Marsh, Amer. Jour. Sci. and Arts, 2d ser., 44, 1867, p. 88.?Hovey,Trans. Kansas Acad. Sci., 3, 1875, p. 10; reprint, 1896, ^. 111.?Roemer,Leth. geog., 1, Theil, Leth. Pal., Erste Lief, 1880, p. 319.?James, J. F.,Jour. Cincinnati Soc. Nat. Hist., 9, 1886, pp. 246, 247.?Beecher, Mem. Pea-body Mus., Yale Univ., 2, 1889, pp. 1, 13.?Miller, N. A. Geol. Pal., 1889,p. 155.?James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p.66.?Rauff, Palseontographica, 40, 1894, p. 272.?James, Amer. Nat., 29, 1895,p. 542, fig. 5.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 17.Brachiospongia digitata (Owen).Troost, Mem. Geol. Soc. France, 3, 1838, p. 95, pi. 11, figs. 8-10.Scyphia digitata Owen, 2d Rep. Geol. Surv. Kentucky, 1857, p. 111.?Hovey,Trans. Kansas Acad. Sci., 3, 1875, p. 10; reprint, 1896, p. 111.Brachiospongia Lyonii Marsh, Amer. Jour. Sci. and Arts, 2d ser., 44, 1867, p. 88.Brachiospongia Roemerana Marsh, Amer. Jour. Sci. and Arts, 2d ser., 44, 1867,p. 88.?Hovey, Trans. Kansas Acad. Sci., 3, 1875, p. 10, fig. 1; reprint, 1896,p. 112, fig. 1.?Roemer, Leth. geog., 1, Theil, Leth. Pal., Erste Lief, 1880, p.319, fig. 61.Brachiospongia hoveyi Marsh, Trans. Kansas Acad. Sci., 1874, p. 344.Brachiospongia digitata James, J. F., Jour. Cincinnati Soc. Nat. Hist., 9, 1886,p. 248.?Beecher, Mem. Peabody Mus., Yale LTniversity, 2, 1889, p. 19,figs. 1-4; pi. 1, figs. 1, 2; pi. 2, figs. 1-7; pi. 3, figs. 1, 2; pi. 4, figs. 1-8.?Nettle-roth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 29, pi. 25, fig.3; pi. 36, figs. 1, 2.?Miller, N. A. Geol. Pal., 1889, p. 155, fig. 92.?James,J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 66, fig. 6.?Rauff,Palaeontographica, 40, 1894, p. 272, figs. 52-55.?Grabau and Shimer, N. A.Index Fossils, 1, 1906, p. 17, fig. 26.Trenton (Bigby): Near Bright's Mill, Franklin County, Kentucky; DavidsonCounty, Tennessee.Brachiospongia hoveyi Marsh. See Brachiospongia digitata.Brachiospongia laevis Foerste.Brachiospongia sp. Beecher, Mem. Peabody Mus., 2, pt. 1, 1889, p. 19.Brachiospongia laevis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 300, . pl. 8, fig. 2.Maysville (Mount Hope): Near Paint Lick, Madison County, Kentucky.Bhachiospoxoia lyonii Marsh. See Brachiospongia digitata.BRAcinospoNfiiA roemerana Marsh. See Brachiospongia digitata.Brachiospongia tubcrculata James.Brachiospongia tuberculata James, Palaeontologist, No. 4, 1879, p. 25.?James,J. F., Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 248; 14, pt. 1, 1891, p. 67.?Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, pl. 10, fig. 5.Richmond (Liberty): Seven miles west of Wilmington, Ohio.BRACHYASPIS Salter. Genotype: Isotelus recti frons Portlock.Brachyaspis Salter, Mon. Brit. Tril., Pal. Soc, 1866, p. 148.?Zittel, Handb.Pal., 2, 1885, p. 609.?Koken, Die Leitfossilien, Leipzig, 1896, p. 28.?Ray-mond, Trans, and Proc. Roy. Soc. Canada, 5, 3d ser., sec. 4, 1912, p. 115. 132 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Brachyaspis alacer (Billings).Asaphus alacer Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p.26, fig. 9a.Brachyaspis alacer Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5,sec. 4, 1912, p. 119, pi. 2, fig. 3.Riclimond (Charleton) and Gamachian: Charleton Point, etc., Anticosti.Brachyaspis altilis Raymond.Asaphus platycephalus Billings (not Stokes), Cat. Sil. Foss. Anticosti, 1866, pp.24, 26, fig. 91).Brachyaspis altilis Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5,sec. 4, 1912, p. 119,. pi. 2, figs. 4, 5; Bull. Victoria Mem. Mus., 1, 1913, p. 47,pi. 4, figs. 3, 7.Richmond (Charleton): English Head, Anticosti.Brachyaspis notans (Billings).Asaphus notans Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1860, p.24, fig. 8; p. 60.Brachyaspis notans Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5,sec. 4, 1912, p. 118, pi. 1, fig. 1.Richmond (English Head): English Head, Anticosti.Gamachian (Ellis Bay): Gamache Bay, Anticosti.Brachymerus Shaler. See Anastrophia Hall.Brachymerus reversus Shaler. See Parastrophia reversa.Brachyprion Shaler. See Stropheodonta subgenus Brachyprion.Brachyprion ventricosa Shaler. See Stropheodonta (Brachyprion) philomena.BROCKOCYSTIS Foerste. Genotype: Apiocystites tceumseth Billing.-.Brockocystis Foer.ste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 468.Brockocystis cllntonensis (Parks).Lopadocystis clintonensis Parks, Amer. Jour. Sci., 29, 1910, p. 404, figs. 1, 2.Brockocystis clintonensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 473.Upper Medinan (Cataract): Forks of Credit River, Ontario.Brockocystis huronensis (Billings).Apiocystites Huronensis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, p. 91, fig. 28.?Schuchert, Smiths. Misc. Coll., 47, 1904, p. 212.Brockocystis hm-onensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, ]>. ^7;'..Upper Medinan (Cataract): Cabots Head, shore of Lake Hiu"on, Canada.Brockocysti.s tecumsoth (Billings).Apiocystites? Tecumseth Billings, Cat. Sil. Foss. Anticosti, Geol. Siu-v. Canada,1866, p. 91.?Schuchert, Smiths. Misc. Coll., 47. pt. 2, 1904, p. 211.Brockocystis tecumsethi Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 469.pi. 5, fig. 2.Upper Medinan (Cataract): Near South Bay, Manitoulin Island, Lake Huron.Broggeria Walcott. See Obolus subgenus Broggeria.Brononiartia Eaton. See Homalonotus Koenig.V Brononiartia carcinodea Eaton. See Triarthrus becki. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 133Brongniartia isotelea Eaton. See laotelua gigas.Brongniartia platycephala Harlan. See Homalonotna delphinocephaliis.Brongniartia trentonensis Collie. See Homalonotua trentonensia.Brontes Goldfuss. See Goldius Dekoninck.Bronteus Goldfuss. See Goldius Dekoninck.BRYOGRAPTUS Lapworth. Genotype: B. kjerulfi Lapworth.Bryograptus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 1G4.?TuU-berg, Sveriges Geol. Unders., Ser. C, No. 55, 1883, p. 12.?Hermann, Geol.Mag., dec. 3, 1886, p. 17.?Lapworth, Trans. Royal See. Canada, 4th ser.,1887, p. 168.?Nicholson and Marr, Geol. Mag., dec. 4, 2, 1895, pp. 530,531, fig.?Koken, Die Leitfossilien, Leipzig, 1896, p. 328.?Wiman, Bull. Geol.Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 265.?Roemer and Freeh, Leth.geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 583.?Elles, Quart. Jour.Geol. Soc, London, 54, ] 898, p. 472.?Elles and Wood, Mon. Brit. Graptolites,Pal. Soc, 1902, p. 87.?Ruedemann, Mem. New York State Mus., 7, pt. 1,1904, pp. G38, 639.Bryograptus kjerulfi Matthew. See Staurograptus dichotomus.Br'yograptus kjerulfi Ruedemann. See Bryograptus pusillus.Bryograptus lapworthi Ruedemann.Bryograptus n. sp., Ruedemann, Ann. Rep., New York State Pal., 1902, p. 556.Bryograptus lapworthi Ruedemann, Mem., New York State Mus., 7, pt. 1, 1904,pp. 639-641, pi. 5, figs. 1-12, fig. 47.Canadian (Deepkill, Tetragraptus zone): Deepkill, Rensselaer County, New York.Bryograptus lentus Matthew. See Staurograptus dichotomus.Bryograptus? multiramosus Gurley. See Dictyonema flabeiliforme.Bryograptus patens Matthew. See Staurograptus dichotomus.Bryograptus pusillus Ruedemann.I'rygraptus Kjerulfi Ruedemann (not Tiapworth), Ann. Rep. New York StatePal.. 1902, p. 556.Bryograptus pusillus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,pp. 641, 642, pi. 4, figs. 21, 22.Canadian (Deepkill, Tetragraptus zone): Deepkill, Rensselaer County, NewYork.Bryograptus spinosus Matthew.Bryograptus spinosus Matthew, Trans. New York Acad. Sci., 14, 1895, p. 269, pi.48, figs. 3a, b.?Gurley, Jour. Geol., 4, 1896, p. 93.?Ruedemann, Bull. NewYork State Mus., 69, 1903, p. 938 (loc. occ).Canadian (Bretonian-Div. C 3c): St. John, New Brunswick.Observation.?Posaibly the same as Staurograptus dichotomus Emmons.BUCANELLA Meek. Genotype: B. nana Meek.Bucanella Meek, Proc. Amer. Phil. Soc, 11, 1870, p. 426.?Miller, N. A. Geol.Pal., 1889, p. 298.?Koken, Neues Jalirb. f. Min., Geol. Pal., Beilage-Band6, 1889, p. 390.Bucaniella Koken, Die Leitfossilien, Leipzig, 1896, pp. 100, 392, 558; NeuesJahrb. f. Min., Geol. Pal., 1. 1896, pp. 6, 10.?Clarke, Archives Mus. NacRio de Janeiro, 10, author's- Eng. ed., 1900, p. 36.?Grabau and Shimer,N. A. Index Fossils, 1, 1909, p. 612. 134 BULLETIN" 92^ UNITED STATES NATIONAL MUSEUM.BucANELLA Kokeu (part). See Kokenospira Bassler, and Tetranota Ulrich andScofield.Bucanella nana Meek.Bucanella nana Meek, Proc. Amer. Phil. Soc, 11, 1870, p. 426.Lower Ordovician: Crater's Falls, Colorado.Bucanella trllobata (Conrad).Planorbis trilobatiis Conrad, Ann. Rep. New York State Geol. Surv., 1838, p. 113.Bellerophon trilobatus Hall, Geol. Rep. 4th Dist. New York, 1843, p. 48, figs. C, 7;pi. 2, figs. 6, 7.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 88, figs.Bucania trilobatus Hall, Pal. New York, 2, 1852, p. 13, pi. 4 (bis), figs. 5a, b, andpart of 3d; p. 93, pi. 28, figs. 10a, b.?Rogers, Geol. Pennsylvania, 2, pt. 2,1858, p. 822, fig. 624.?Lincklaen, 14th Rep. New York State Cab. Nat.Hist., 1801, pi. 5, figs. 6, 7.?Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1,1887, p. 103, pi. 8, figs. 33a, b.?Grabau, Bull. New York State Mus., 45, 1901,p. 213, fig. 144.Bellerophon (Bucania) trilobatus Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 549,pi. 27, figs. 33a, b.Bucaniella trLlobata Clarke, Archivos Mus. Nac. Rio de Janeiro, 10, author's Eng.ed., 1900, p. 36 (gen. ref.).Upper Medinan and Clinton: Lockport, Medina, etc., New York; Ontario;Arisaig, Nova Scotia.Bucanella trilobata viromundo (Clarke).Bucaniella trilobata var. viro-mundo Clarke, Archives Mus. Nac. Rio de Janeiro,author's Eng. ed., 1900, p. 18, pi. 2, figs. 20-22.Silurian: Rio Troml^etas, Brazil.Bucania (part) of authors. See Tetranota Ulrich and Scofield, Salpingostoma Roe-mer, and Bucanopsis Ulrich.BUCANIA Hall. Genotype: Bellerophon sulcatinus EmmonpBucania Hall, Pal. New York, 1, 1847, p. 32.?Verneuil, Bull. Soc. Geol. France2d ser., 5, 1848, p. 376, footnote.?Hall, 12tli Rep. New York State Cab. NatHist., 1859, p. 66; 14th Rep., 1861, p. 93.?Meek, Proc. Chicago Soc. NatHist., 1, 18G6, p. 11.?Miller, Cincinnati Quart. Jour. Sci., 1874, p. 307. ? Hall, Pal. New York, 5, pt. 2, 1879, p. 121.?Waagen, Mem. Geol. Surv. IndiaPal. IncUca, 13th ser., 1880, 1, p. 130, 150.?Zittel, Handb. Pal., 2, 1882, p184.?Koninck, Ann. d. Mus. Royal d'Hist. Nat. de Belgique, 8, 1883, p148._Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p159._Koken, Neues Jahi-b. f. Min., Geol. Pal., Beilage-Band, 6, 1889, pp379, 385.?Miller, N. A. Geol. Pal., 1889, p. 398.?Barrois, Ann. Soc. Geol. duNord, 19, Lille, 1891, p. 216.?Koken, Die Leitfossilien, Leipzig, 1896, p. 100,text fig. 78, fig. 1; Bidl. I'Acad. Imp. Sci. St. Petersbm-g, 7, 1897, p. 120.?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 850.?Koken, NeuesJahrb. f. Min., Geol. Pal., 1, 1898, p. 6.?Clarke, Archivos Mus. Nac. Rio deJaneiro, 10, author's Eng. ed., 1900, p. 35.?Grabau, Bull. Buffalo Soc. Nat.Sci., 7, 1901, p. 213; Bull. New York State Mus., 45, 1901, p. 213.?Clarkeand Ruedemann, Mem. New York State Uus., 5, 1903, p. 52.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 948.?Grabau and Sliimer,N. A. Index Fossils, 3, 1909, p. 613.?Ball, Zittel -Eastman Textb. Pal., 2ded., 1913, p. 521.Bucania anoustata Hall. See Tremanotus angustata. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 135Bucania bellapuucta HalLBucania bellapuncta Hall, Pal. New York, 2, 1852, p. 93, pi. 28, fig. 9.Lower Clinton: Walcott, New York.Bucania (Bellerophon) bidorsata Hall. See Tetoanota bidoraata.Bucania buelli Whitfield. See Salpingostoma buelli.Bucania (Tremanotus) buelli Whitfield. See Salpingostoma buelliBucania catilloides Raymond. See Oxydiscus catilloides.Bucania champlainensis Whitfield. See Bucania sulcatina.Bucania chicagoensis McChesney. See Tremanotua oliicagoensis.Bucania costatus Miller. See Dyeria costata.Bucania crassa Uhich.Bucania crassa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 893, pi. 67, figs. 46-48.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 955, pi. 39,figs. 4-4b.Riclunond (Elkhorn): Near Riclmiond, Indiana.Holotype.?Cat. No. 45714, U.S.N.M.Bucania crassolare McChesney. See Tremanotus crassolaris.Bucania cyclostoma Calvin.Bucania cyclostoraa Calvin, Bull. Lab. Nat. Hist. State Univ. Iowa, 1, 1890, p.181, pi. 1, figs. 2a, b.Niagaran: Maquoketa, Iowa.Bucania elliptica Ulrich and Scofield.Bucania elliptica Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 888,pi. 66, figs. 11 and 12.Trenton (Prosser): Near Cannon Falls, Minnesota.Holotype.?Cat. No. 45715, U.S.N.M.Bucania emmonsi Ulrich and Scofield.Bucania emmonsi Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 887,pi. 66, figs. 1-3.Black River (Platteville): Cannon Falls and Fountain, Minnesota.Stones River (Murfreesboro): Murfreesboro, Tennessee.Cotypes.?Cat. Nos. 46049, 46050, U.S N.M.Bucania euomphaloides Owen. Not recognized.Bucania euomphaloides Owen, Geol. Surv, Indiana, 1862, p. 362, fig. 3.Silurian: Locality not given.Bucania exigua Foerste.Bucania exigua Foerste, Bull. Sci. Lab. Denison Univ., 1, 1884, p. 99, pi. 13,figs. 18a-d.Bellerophon (Bucania) exigua Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889,p. 288, pi. 6, fig. 3; Geol. Surv. Ohio, Pal., 7, 1893, p. 548, pi. 25, figs. 18a-b;pi. 31, fig. 3; pi. 37A, figs. 2a-c.Bellerophon exigiius Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 619.?Savage, Bull. Illinois Geol. Surv., 23, 1913, p. 99, pi. 6, fig. 6.Upper Jiledituxn: Dayton and Todds Fork, Ohio; Hanover, Indiana (Brassfield);Pike County, Missouri (Edgewood).Bucania expansa Hall. See Salpingostoma expansa. 136 BULLETIN Q2, UNITED STATES NATIONAL MUSEUM,Bucania fiscellostriata (Foerste).Bellerophon fiscello-striatiis Foerste, Biill. Sci. Lab. Denison Univ., 1, 1885, p.99, pi. 13, figs. 19a-d; Proc. Boston See. Nat. Hist., 24, 1889, p. 287; Geol.Surv. Ohio, Pal., 7, 1893, p. 548, pi. 25, figs. 19a-e.Upper Medinan (Brassfield) : Near Dayton, Ohio.Bucania frankfortensls Ulrich.Bucania frankfortensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 891, pi. 66, figs.30-33.Trenton (Cynthiana): Frankfort, Kentucky.Eolotype.?C&t. No. 45716, U.S.N.M.Bucania halli Ulrich and Scofield.Bucania halli Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 886, pi. 66,figs. 4-8.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 614, fig. 822.Black Paver: Cannon Falls, Minnesota (Platteville); Lincoln County, Missouri(Auburn); Mercer County, Kentucky (Lowville).Cotypes.?Cat. Nos. 45717, 45718, U.S.N.M.Bucania imbricata Miller. See Salpingostoma imbricata.Bucania intexta Hall.Bucania intexta Hall, Pal. New York, 1, 1847, p. 217, pi. 33, figs. 4a-d.Bellerophon intextus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 166.Trenton: Near Watertown, New York.Bucania lindsleyi (Safford).Bellerophon lindsleyi Safford, Geol. Tennessee, 1809, pi. 3 (G), figs. 3a, b, d, e.Bucania lindsleyi Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 889, ])1.66, figs. 24 and 25.Trenton: Dekalb County, Tennessee (Catheys): Near Cannon Falls, Minnesota(Prosser) . Holotype.?Cat. No. 45719, U.S.N.M.Bucania micronema Ulrich.Bucania micronema Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 892, pi. 66, figs.26-29. .Trenton (Flanagan): Danville, Kentucky.Holotype.?Cat. '^0. 45720, U.S.N.M.Bucania minnesotensis Ulrich and Scofield.Bucania minnesotensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pi.66, figs. 9 and 10.Black River (Platteville): Goodhue County, Minnesota.Holotype.?Cat. No. 45721, U.S.N.M.Bucania nana Ulrich.Bucania nana Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 895, pi. 66, figs. 41-44.Trenton: Near Burgin (Flanagan) and Covington, Kentucky.Cotypes.?Cat. No. 45722, U.S.N.M.Bucania nana subpatula Ulrich.Bucania nana var. subpatula Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 896, pi.66, figs. 45, 46.Trenton: Near Burgin (Flanagan) and Covington, Kentucky.Eolotype.?Czt. No. 45723, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 137Bucania nashvlllensis Ulrich.Bucania nash\illensiB Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 890, pi. 66, figs.36-40.Trenton (Catheys): Dekalb County and Nashville, Tennessee.Cotypes.?Cat. Nos. 45724, 45725, U.S.N .M.Bucania obsoleta Miller. See Tetranota obsoleta.Bucaula operta (Foerste).Bellerophon (Bucania) opertus Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 548,pi. 25, figs. 18c-d; pi. 37A, figs. 3a, b.Upper Medinan (Brassfield) : Near Dayton, Ohio, and Hanover, Indiana.Bucania peracuta Ulrich.Bucania peracuta Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 896, pi. 66, figs. 34, 35.Trenton (Catheys): Dekalb County, Tennessee.Holofype.?Cat. No. 45726, U.S.N.M.Bucania perornata Calvin.Bucania perornata Calvin, Bull. Lab. Nat. Hist., State Univ. Iowa, 1, 1890, p. 180,pl.3, figs. 3a, b.Niagai'an: Maquoketa, Iowa.Bucania pervoluta McChesney. See Tremanotus pervolutus.Bucania punctata Lincklaen. See Bucania punctifrons.Bucania punctifrons (Emmons).Bellerophon punctifrons Emmons, Geol. Rep. 2d Dist. New York, 1842, p. 392,fig. 5.?Owen, Amer. Jour. Sci. and Arts, 47, 1844, p. 369, fig. 5.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 165, pi. 12, figs. 11a, 12; Manual Geol.,1860, p. 98, fig. 87.?Lesley, Geol. Surv. Pennsylvania, Rep. P. 4, 1889,p. 87, figs.Bucania punctiirons Hall, Pal. New York, 1, 1847, p. 187.?Ulrich and Scofield,Geol. Minnesota, 3, pt. 2, 1897, p. 894, pi. 67, figs. 41-44.?Raymond, Bull.Amer. Pal., 3, 1902, pi. 19, figs. 9, 10.?AVeller, Geol. Surv. New Jersey, Pal.3, 1903, p. 177, pi. 12, figs. 10-12.?Grabau and Shimer, N. A. Index Fossils,1, 1909, p. 614.Bucania punctata Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861,pi. 2, fig. 5.Retepora loliacea Hall, Pal. New York, 1, 1847, p. 78, pi. 26, figs. 9a, b.Trenton: Middleville, ^^'^aterlown, etc.. New York; Canada; Central Tennessee;New Jersey.Plesiotypes.?Cat. No. 45727, U.S.N.M. (Ulrich and Scofield).Bucania richmondensis Miller. See Salpingostoma richmondensis.Bucania rotundata Hall. See Bucania sulcatina. 'Bucania rugatina Ulrich.Bucania rugatina Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 890, pi. 66, figs. 13-15.Trenton (Flanagan): Near Burgin, Kentucky.Bolotype.?Cat. No. 45728, U.S.N.M.Bucania rugosa Lesley. See Beller()i)h()n rugosa.Bucania sculptilis Miller. See Saljjingostoma sculptilis. 138 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bucania simulatrix Ulrich.Bucania simulatrix Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 892, pi. 63, figs. 48,49; pi. 67, fig. 45.?Cumings, 32d Ann. Kep. Dep. Geol. Nat. Res. Indiana,1908, p. 955, pi. 42, figs. 9, 9a.Richmond (Whitewater): Richmond, Indiana.Bucauia singularis Ulrich.Bucania singularis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 894, pi. 66, fig. 47.Trenton (C'atheys): Nashville, Tennessee.Eolotype: Cat. No. 45730, U.S.N.M.Bucania stigmosa Whiteaves. See Bellerophon shelbiensis.Bucania stigmosa Hall.Bucania stigmosa Hall, Pal. New York, 2, 1852, p. 92, pi. 28, figs. 8a-e.Lower Clinton: Lockport, New York.Bucania subangulata ULrich.Bucania subangulata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 891, pi. 66, figs.20-23.Trenton (Flanagan): Mercer and Boyle Counties, Kentucky.Cotypes.^C-At. No. 45731, U.S.N.M.Bucania sublata Ulrich and Scofield.Bucania sublata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 888,pi. 66, figs. 16-19.Trenton: Near Burgin, Kentucky (Flanagan); Wykoff, Minnesota (Prosser).Black River (Decorah): Near Fountain and Minneapolis, Minnesota.Cotypes.?Cat. Nos. 45732, 45733, U.S.N.M.Bucania sulcatina (Emmons).Bellerophon sulcatinus Emmons, Geol. Nat. Hist. New York, 2, 1842, p. 312,fig. 4.?Owen, Amer. Jour. Sci., 47, 1844, p. 358, fig. 4, p. 359.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 165, pi. 4, fig. 4; Manual Geol., 1860, p. 93,fig. 78 only.?Billings, Geol. ("anada, Geol. Surv. Canada, 1863, p. 146,fig. 96a, b.Bellerophon (Bucania) siilcatinus Salter, Quart. Jour. Geol. Soc. London, 1854,10, p. 74.Bucania sulcatina Hall, Pal. New York, 1, 1847, p. 32, pi. 6, figs. 10, 10a; pi.33, fig. 4d.--Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi.1, figs. 4, 5.?Waagen, Pal. Indica, 13th ser., pt. 2, 1880, p. 131.?Miller,N. A. Geol. Pal. 1889, p. 398, fig. 656.?Koken, Neues Jahrb. f. Min.,Geol. Pal., Beilage-Band 6, 1889, p. 379.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 97, figs.?Whiteaves, Canadian Rec. Sci., 5, 1893, p. 322(loc. occ).?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 850,883.?Koken, Neues Jahrb. f. Min., Geol. Pal., 1, 1898, p. 9.?Raymond,Ann. Carnegie Mus., 4, 1908, p. 194, pi. 49, figs, 15-17; pi. 50, figs. 3, 4; pi.55, figs. 13, 14.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 613,figs. 820, 821.Bucania rotundata Hall, Pal. New York, 1, 1847, p. 33, pi. 6, figs, lla-c.Bellerophon rotundatus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 165.Megalomphala? rotundata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 850 (gen. ref.).Bucania champlainensis Whitfield, Bull. Amer. Miis. Nat. Hist., 9, 1897, p. 181,pi. 4, figs. 14-16.?Raymond, Bull. Amer. Pal., 3, 1902, p. 305, pi. 18, figs. 7, 8.Chazyan (Day Point-Valcour) : Chazy, Plattsburgh, etc., New York; Vermont-East Tennessee; Isle La Motte, Vermont.Middle Stones River: Chambersburg, Pennsylvania, etc.Piesiotypes.?Cat. No. 53635, U.S.N.M. BIBLIOGRAPHIC LIST OP GENEEA AND SPECIES. 139BucANiA TRiGONOSTOMA Whitfield. See Tremanotiis? trigonostoma.BucANiA TRiLOBATA Clarke. See Bucanella trilobata.Bucania trlpla Whitfield.Bucania tripla ^^^litfield, Bull. Amer. Mu.s. Nat. Hist., 2, 1889, p. 55, pi. 9, figa.12, 13.?Seely, Rep. State Geol. Vermont, 7, 1910, pi. 60, fig. 7.Canadian (Beekmantown): Pro\T.dence Island, Lake Champlain.BucANiELLA Kokeu. See Bucanella Meek.BUCANOPSIS Ulrich. Genotype: B. carinifera Uhich.Bellerophon (part)of authors prior to 1884.Bucania (part) Waagen, Pal. Indica, 13th ser., pt. 2, 1880, pp. 130 and 150.?Koken,N. Jahrb. f. Min., etc., Beilage Band, 6, 1889, p. 379.Bucanopsis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, pp. 853-922.?Grabau andShimer, N. A. Index Fossils, 3, 1909, p. 622.Bucanopsis carinifera Ulrich.Bucanopsis carinifera Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 925, pi. 62, figs. - 56-61.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 622, fig. 836.Trenton (Flanagan): Near Danville, Kentucky; Maysville (Fairmount); Cin-cinnati, Ohio, and vicinity.Cotypes?Cat. No. 45734, U.S.N.M.BUCANOSPIRA UWch. Genotype: B. expansa Uh^ch.Bucanospira Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1044.Bucanospira expansa Ulrich.Bucanospira expansa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1044, figs. 9a-c.Niagaran (Brownsport): Wayne County, Tennessee.Cotypes.?Csit. No. 45735, U.S.N.M.BUMASTUS Murchison. Genotype: B. barriensis Murchison.Bumastua Murchison, Sil. Syst., 1839, p. 656.?Goldfuss, Neues Jahrb. f. Min.,etc., 1843, pp. 540, 552.?Salter, Mem. Geol. Surv. United Kingdom, dec. 2,1849, pis. 3, 4.?McCoy, Ann. Mag. Nat. Hist., 2d ser., 4, 1849, p. 399.?Salter, Mon. British Tril., Pal. Soc, 1867, p. 183.?Steinhardt, Beit. z.Naturk. Preus. Phys.-Oekon. Gesell., Konigsberg, 1874, p. 52.?AngeUn,Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 40.?Holm, Bihang K. SvenskaVet.-Hand., 7, 1882, pp. 12, 16.?Zittel, Handb. Pal., 2, Munich, 1885, p.612.?Holm, Mem. I'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1886, pp.18, 21, 42.?Koken, Die Leitfossilien, Leipzig, 1896, p. 28.?Lindstrom,Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, pp. 26, 45.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 297.?Slocom, Field Mus. Nat.Hist., Geol. Ser. 4, 1913, p. 54.?Raymond, Zittel-Eastman Textb. Pal.,1913, p. 720.Biimastus armatus (Hall).Illaenus armatus Hall, adv. sheets, 18th Rep. New York State Cab. Nat. Hist.,1865, p. 26, figs. 3, 4; 20t]i Rep. 1867, p. 330, pi. 22, figs. 1-3, figs. 3-4; (rev.ed.), 1870, p. 418, figs. 8, 9, pi. 22, figs. 1-3, pi. 25, fig. 22; also p. 433; 28thRep. New York State Mus. Nat. Hist. (doc. ed.), 1877, pi. 32, figs. 19-20;1879, Mus. ed., p. 189, pi. 32, figs. 19, 20; 11th Rep. Dep. Geol. and Nat. Hist.Indiana, 1882, p. 335, pi. 34, figs. 19-20, pi. 33, fig. 12.?Kindle and Breger28th Rep., ibid., 1904, p. 479, pi. 22, fig. 6.?Weller, Bull. Chicago Acad.Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 222, pi. 18, figs. 4-6.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 297, fig. 1609. 140 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bumastus armatus?Continued.Illsenus (Bumastus) armatus Salter, Mon. Brit. Tril., Pal. Soc, 1867, p. 209, fig. 54.Illsenus (Bumastus) worthenanus Winchell and Marcy, Mem. Boston Soc. Nat.Hist., 1, 1865, p. 105, 109.Niagaran: Bridgeport, Illinois; Racine, etc., Wisconsin (Racine); Waldron,Indiana (Waldron); Georgetown and Wabash, Indiana.Bumastus barriensis Hall. See Bumastus ioxus.Bumastus beckeri Slocom.Bumastus beckeri Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 54, pi. 14,figs. 1-4.Richmond (Maquoketa): Clermont, Iowa.Bumastus bellevillensis Raymond and Narraway.Bumastus bellevillensis Raymond and Narraway, Ann. Carnegie Mus., 4, 1908,p. 253, pi. 01, figs. 6, 7.Trenton: Belleville, Canada.Bumastus billingsi Raymond and Narraway.Cf. Bumastus trentonensis Emmons, Geol. New York, Rep. 2d Dist., 1842,p. 290, fig. 1.Cf . Iltenus trentonensis Hall, Pal. New York, 1, 1847, p. 230, pi. 60, fig. 5.Cf. Bumastus orbicaudatus Clarke, Geol. Minnesota, 3, 1897, p. 722, fig. 36.Bumastus billingsi Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p.250, pi. 61, figs. 1, 2.?Raymond, Bull. Victoria Memorial Mus., 1, 1913,p. 34, pi. 3, fig. 12.Trenton: Hull, Quebec, and vicinity.Observation.?See Raymond and Narraway (1908) for a discussion of the syn-onyms of this species.Bumastus chicagoensis (Weller).Illsenus chicagoensis W^eller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2,1907, p. 220, pi. 16, figs. 10-12.Niagaran (Racine): Bridgeport, Illinois.Bumastus cuniculus (Hall).Illtenus cuniculus Hall, 20th Rep. New York State Cab. Nat. Hist, 1868, p. 377,pi. 22, fig. 12; rev. ed., 1870, p. 421, pi. 22, fig. 12.?Weller, Bull. ChicagoAcad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 219, pi. 19, figs. 1-6.Niagaran (Racine): Hawthorne, Illinois; Wauwatosa, AVisconsin.Bumastus elongatus Weller.Bumastus elongatus Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 195, pi. 14,fig. 15.Trenton: Near Springdale, New Jersey.Bumastus erastusi (Raymond).Illsenus erastusi Raymond, Ann. Carnegie Mus., 3, 1905, p. 351, pi. 13, figs. 8, 9.Bumastus erastusi RajTnond, Ann. Carnegie Mus., 7, 1910, p. 71; 7th Rep. StateGeol. Vermont, 1910, p. 229, pi. 35, figs. 8, 9.Ill^nus crassicauda? Hall, Pal. New York, 1, 1847, p. 24, pi. 4 bis, fig. 13.Chazyan: Valcour Island and Chazy, New York; Isle La Motte, Vermont (CrownPoint, Valcour); Mingan Islands, Canada (Mingan).Bumastus globosus (Billings).Ill?enus globosus Billings, Canadian Nat. Geol., 4, 1859, p. 367, figs. 1-3; Geol.Canada, Geol. Surv. Canada, 1863, p. 133, figs. 64, a-c.?Miller, N. A. Geol.Pal., 1889, p. 551, text figs. 1015-16.?Raymond, Annals Carnegie Mus.,1905, p. 350, pi. 13, figs. 6, 7.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 294, figs. 1605, a. c. BIBLIOGEArHIC LIST OF GENERA AND SPECIES. 141Bumastus globosus?Continued.Bumastus globosus Raymond, Ann. Carnegie Mus., 7, 1910, p. 71, pi. 19, fig. 9;7th Rop. State Geol. Vermont, 1910, p. 228, pi. 35, figs. G, 7; pi. 39, fig. 9;Trans, and Proc-. Roy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 120, pi. 3, fig. 3.Chazyan: Mingan Islands (Mingan); Island of Montreal; Chazy, Valcour Island,Plattsburg, and Crown Point, New York; Isle La Motte, Vermont (DayPoint, Valcour); East Tennessee (Lenoir).Bumastus graftonensis (Meek and Worthen).Illsenus (Bumastus) graftonensis Meek and Worthen, Proc. Acad. Nat. Sci.Philadelphia, 1870, p. 54; Geol. Surv. Illinois, 7, 1875, p. 508, pi. 25, fig. 4.Illsenus graftonensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2,1907, p. 223, pi. 16, figs. 4-6.?Keyes, Missouri Geol. Surv., 4, 1894, p. 226.Niagaran: Grafton, JoUet, and near Lemont. Illinois (Racine).Bumastus harrisi (Weller).lUaenus harrisi Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907,p. 218, pi. 16, figs. 1-3.Niagaran (Racine): Bridgeport, Illinois.Bumastus impcrator (Hall).lUsenus imperator Hall, Rep. Prog. Geol. Surv. Wisconsin, 1861, p. 49; Geol.Surv. Wisconsin, 1, 1862, p. 433; adv. sheets 18th Rep. New York StateCab. Nat. Hist., 1865, p. 28; 20th Rep., 1867, p. 332, pi. 22, figs. 15-17; pi.23, figs. 2-3; rev. ed., 1870, p. 420, pi. 22, figs. 15-17; pi. 23, figs. 2-3.?^^Tiit-field, Geol. Wisconsin, 4, 1882, p. 306, pi. 21, figs. 4-5.?Weller, Bull. ChicagoAcad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 225, pi. 16, figs. 13-16.?Grabauand Shimer, N. A. Index Fossils, 2, 1910, p. 297.Niagaran (Racine): Racine, Waukesha and Burlington, Wisconsin^ Joliet,Illinois.Bumastus indeterminatus (Walcott).Illeenus indeterminatus Walcott, 31st Rep. New York State Mus. Nat. Hist.,1879 (1880); adv. sheets 1877, pp. 19, 70.Illienus cf. indeterminatus Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 716, fig. 24.Bumastus indeterminatus Raymond and Narraway, Ann. Carnegie Mus., 4, 1908,p. 253, pi. 62, figs. 8, 9.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.297.Black River: Russia, New York; Mechanicsville, Ontario; Tetreauville, Quebec(Lowville); Platteville and Janesville, Wisconsin (Platteville).Bumastus insignis (Hall).Illaenus insignis Hall, adv. sheets 18th Rep. New York State Cab. Nat. Hist.,1865, p. 27, figs. 5, 6; 20th Rep., 1867, p. 331, figs. 5, 6; pi. 22, figs. 13, 14; rev.ed., 1870, p. 419, figs. 10, 11; pi. 22, figs. 13, 14.?Whitfield, Geol. Wisconsin,4, 1882, p. 305, pi. 21, figs. 6-10.?Chamberlin, Geol. Wisconsin, 1, 1883, p.195, fig.?Foerste, 15th Ann. Rep. Geol. and Nat. Hist. Surv. Minnesota,1887, p. 481.?Keyes, Missouri Geol. Surv., 4, 1894, p. 227, pi. 32, figs. 1 a-b.?Geol. Surv. Ohio, 7, 1895, p. 525, pi. 26, fig. 11.?Kindle, 28th Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1904, p. 479, pi. 22, figs. 1-5.?Weller, Bull.Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 215, pi. 17, figs. 1-5.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 296, fig. 1608.Illsenus (Bumastus) insignis Salter, Mon. Brit. Tril., Pal. Soc, 1867, p. 207, pi.27, figs. 6, 7.Bumastus insignis Salter, Mon. Brit. Tril., Pal. Soc, 1867, p. 183 (gen. ref.").Niagaran: Waukesha, Milwaukee, Racine, etc., Wisconsin; Bridgeport, Illinois(Racine) : Ohio and Indiana. 142 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bumastus loxus (Hall).Bumastus barriensis Hall (not Murchison), Geol. New York, pt. 4, 1843, p. 102,fig. 4; p. 101; tab. org. rem., 10, fig. 4, and 19, fig. 2.?Owen, Amer. Jour.Sci. and Arts, 48, 1845, p. 309, fig. 4.?Verneuil, Amer. Jour. Sci. and Arts,2d eer., 7, 1849, p. 225.?Hall, Pal. New York, 2, 1852, p. 302, pi. 66, figs.1-15.?Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 83, pi. 5, fig.23.?Emmons, Man. Geol., 1860, p. 108, fig. 98.?Billings, Geol. Canada,Geol. Surv. Canada, 1863, p. 319, fig. 338.?Miller, N. A. Geol. Pal., 1889, p.536, fig. 981.lUaenus (Bumastus) barriensis? Hall, Geol. Surv. Wisconsin, 1, 1862, p. 433;adv. sheets, ISth Rep. New York State Cab. Nat. Hist., 1865, p. 28; 20th Rep.1867, p. 332.Illaenus barriensis Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861,pi. 8, fig. 5.?Hall, Trans. Albany Inst., 4, 1863, p. 227.Illaenus ioxus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 387,fig.; pi. 22, figs. 4-11; pi. 23, fig. 1; rev. ed., 1870, p. 420, fig. 12, pi. 22, figs.4-10.?Whitfield, Geol. Wisconsin, 4, 1882, p. 304, pi. 21, figs. 11, 12.?Chamberlm, Geol. Wisconsin, 1, 1883, p. 195, fig.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 299, figs.?Foerste, Proc. Bost. Soc. Nat.Hist., 24, 1889, p. 268, pi. 5, fig. 20.?Van Ingen, School of Mines Quart., 23,1901, p. 35.?Grabau, Bull. New York State Mus., 45, 1901, p. 223, fig. 154;Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 223, fig. 154.?Kindle, 28th Rep. Dep.Geol. Nat. Res. Indiana, 1904, p. 480, pi. 22, fig. 7; pi. 23, fig. 3.?Weller,Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 222, pi. 18, figs.1-3.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 295, figs. 1606, 1607.Illaenus (Bumastus) ioxus Hall, Trans. Albany Inst., 10, 1883, p. 76; 11th Rep.Dep. Geol. Nat. Hist. Indiana, 1882, p. 335, pi. 38, figs. 13, 14.Niagaran: Rochester, Lockport, etc.. New York; Hamilton, etc., Ontario (Roches-ter) ; Waldron, Indiana (Waldron) ; Racine, etc., Wisconsin ; Illinois (Racine) ; Cedarville, etc., Wisconsin (Guelph); Indiana; Arkansas; Ohio; etc.Bumastus limbatus Raymond.Bumastus limbatus Raymond, Ann. Carnegie Mus., 7, 1910, p. 71; 7th Rep. Ver-mont State Geol., 1910, p. 230, pi. 35, figs. 1, 2.Illaenus indeterminatus Raymond (not Walcott) Ann. Carnegie Mus., 3, 1905, p.347, pi. 13, figs. 1, 2.Chazyan (Valcour): Valcour Island, New York, and Isle La Motte, Vermont.Bumastus milleri (Billings).Cf. Illaenus trentonensis Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 390,fig. 3.Cf. Bumastus trentonensis Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 718, figs.30_35._Weller, Pal. New Jersey, 3, 1902, p. 194, pi. 14, figs. 8-13.?Grabauand Shimer, N. A. Index Fossils, 2, 1910, p. 298, figs. 1610a, b.Illaenus milleri Billings, Canadian Nat. Geol., 4, 1859, p. 375, fig. 10; Geol. Canada,Geol. Surv. Canada, 1863, p. 151, fig. 112.?Walcott, 31st Ann. Rep. NewYork State Mus. Nat. Hist., 1879, p. 71 (adv. sheets, 1877, p. 20).?Raymondand Narraway, Ann. Carnegie Mus., 4, 1908, p. 249, pi. 61, figs. 9, 10; pi. 62,figs. 3-5.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 297.Black River: Ottawa, etc., Ontario; New York; New Jersey; etc.Observation.?See Raymond and Narraway (1908) for a discussion of this andrelated species.Bumastus niagarensis (WTiitfield).Illaenus niagarensis Whitfield, Ann. Rep. Wisconsin Geol. Siu-v., 1880, p. 68. ? Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 219, pi.19, figs. 7-11. BIBLIOCiRAPITTC LIST OF GENERA AND SPECIES. 143Bumastus iiiagarensis?Contiuued.Bumastus niagarensis Tirabau and Shimer, N. A. Index Fossils, 2, 1910, p. 298.Illaenus madisonianus Whitfield, Geol. Wisconsin, 4, 1882, p. 307, pi. 20, figs. 8,9.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig.?Foerste, Bull. Sci.Lab. Denison Univ., 1, 1885, p. 106, pi. 14, figs, la, lb, 2a-2b; 2, 1887, p. 93,pi. 8, figs. 8-10; Geol. Surv. Ohio, Pal., 7, 1893, p. 526, pi. 27, figs. 7-10.?Van Ingen, School of Mines Quart., 23, 1901, p. 35.Illsenus madisonianus vars. elongatus and depressus Foerste, Geol. Surv. Ohio, 7,1893, p. 526, pi. 26, figs. 1, 2; pi. 27, figs. 7-10.Niagaran: Wisconsin and Illinois (Racine); St. Clair Springs, Arkansas (St. Clair);Dayton, Ohio (Brassfield).Bumastus orbicaudatus (Billings).Illsenus orbicauda Billings, Canadian Nat., 4, 1859, p. 379.Illsenus orbicaudatus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 27, fig. 10; p. 60.?Salter, Mon. Brit. Tril., Pal. Soc, 1867, p. 209.Richmond-Anticostian (English Head, Gun River) : English Head, Gamache Bay,etc., Anticosti.Bumastus orbicaudatus Clarke. See Bumastus billingsi.Bumastus transversalis Weller.Bumastus transversalis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 195, pi.14, fig. 14.Trenton: Hainesbiu-g, New Jersey.Bumastus trentonensis Emmons.Bumastus trentonensis Emmons, Nat. Hist. New York, Geol. , 2, 1842, p. 390, fig. 1.Illsenus trentonensis Hall, Pal. New York, 1, 1847, p. 230, pi. 69, fig. 5.Trenton (drift): Hogansburg, New York.Observation.?Type lost and figures not sufficient for accurate identification.See Raymond and Narraway (Annals Carnegie Mus., 4, 1908, p. 251) for a dis-cussian of this and related forms.BUTHOGRAPTUS Hall. Genotype: B. laxusHall.Buthograptus Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 18; 20th Rep.New York State Cab. Hist., 1868, p. 218; rev. ed., 1870, p. 252.?Nicholscm,Mon. Brit. Grapt., 1872, p. 131.?Spencer, Trans. Acad. Sci. St. Louis, 4,1884, p. 563.?Whitfield, Bull. Amer. Mus. Nat. Hist., 6, 1894, p. 351 (Bytho-cladus, new name, suggested).Bythograptus Miller, N. A. Geol. Pal., 1889, p. 174.Buthograptus laxus Hall.Buthograptus laxus Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 19; Geol.Surv. Canada, dec. 2, 1865, p. 18, fig. 25; 20th Rep. New York State Cab.Nat. Hist., 1868, p. 185, fig. 27; rev. ed., 1870, p. 214, fig. 27.?Nicholson,Mon. Brit. Graptol., 1872, p. 132, fig. 72.?Chamberlin, Geol. Wisconsin, 1,1883, p. 153, fig.?Wliitfield, Bull. Amer. Mus. Nat. Hist., 6, 1894, p. 351, pi.11, figs. 1-3; Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 40, pi. 4. figa 1-3.Black River (Platteville): Platteville, etc., Wisconsin.BUTHOTREPHIS Hall. Genotype: B. antiquata Hall.Buthntrephis Hall, Pal. New York, 1, 1847, p. 8.?Billings, Pal. Foss., 1, Geol.Surv. Canada, 1865, p. 99.?Nathorst, Ofvers K. Vet.-Akad. Forhandl., 30,No. 9, 1873, p. 46.?James, Jour. Cincinnati Soc. Nat. Hist.. 7, 1885, p. 159.Bythotrephis Roemer, Leth. geog., 1, Theil, Leth. Pal., Erste Leif, 1880, p. 123.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 139.?Grabau,Bull. New York State Mus., 45, 1901, p. 130; Bull. Buffalo Soc. Nat. Sci.,7, 1901, p. 130.?Miller, N. A. Geol. Pal., 1889, p. 109. 144 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Buthotrephis antiquata Hall.Buthotrephis antiquata Hall, Pal. New York, 1, 1847, p. 8, pi. 2, fig. 6.?Goeppert,Nov. Act. Acad. Caes. Leop. Car., 22, Suppl. (Uebergangsgeb.), 1852, p. 85. ? Quenstedt, Handb. Petrefaktenk. Tubingen, 3d ed., 1885, p. 1081, fig. 402.?Lesley, Rep. Geol. Surv. Pennsylvania, P 4, 1889, p. 98, fig.Chazyan: Chazy, New York.Buthotrephis? ctespitosa Hall.Buthotrephis? csespitosa Hall, 3d Rep. New York State Cab. Nat. Hist., rev.ed., 1850, p. 178, pi. 1, fig. la-c (doc. ed., p. 170).Trenton: Near Watertown, New York.Buthotrephis clavelloides (Grabau).Bythotrephis clavelloides Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p.210, pi. 12, fig. 1.Cayugan (Akron): North Buffalo, New York.Buthotrephis divaricata WTiite.Buthotrephis divaricata David White, Proc. U. S. Nat. Mus., 24, 1902, p! 265,pi. 16.Cayugan (Kokomo): Kokomo, Indiana.Buthotrephis filiciformis James. See Chlcephycus filiciformis.Buthotrephis gracilis Hall (1847). See Buthotrephis tenuis.Buthotrephis gracilis (Hall).Fucoides gracilis Hall, Nat. Hist. New York, Geol., 4, 1843, p. 69, fig.Buthotrephis gracilis Hall (not Hall, 1847), Pal. New York, 2, 1852, p. 18, pi. 5,figs, la-d.?Rogers, Geol. Pennsylvania, 2, 1858, p. 822, fig. 625.?Nicholsonand Hinde, Canadian Joiir., n. s., 14, 1874, p. 137.?Etheridge, Quart. Jour.Geol. Soc. London, 34, 1878, p. 574.?Lesquereux, 13th Ann. Rep. IndianaGeol. Surv., 1883, p. 30, pi. 1, figs. 1, 6, 7.?James, Jour. Cincinnati Soc. Nat.Hist., 7, 1885, p. 160, pi. 9, fig. 6.?Lesley, Rep. Geol. Surv. Pennsylvania,P. 4, 1889, pp. 99, 100, figs.Bythotrephis gracilis Schimper, Pal. Veg., 1, 1869, p. 198.?Grabau, Bull. NewYork State Mus., 45, 1901, pp. 130, 131, fig. 25; Bull. Buffalo Soc. Nat. Sci.,7, 1901, p. 130, 131, fig. 25.Buthotrephis Hallii Humphreys, Bull. Torrey Botanical Club, 37, 1910, p. 309.Lithodendron dichotomum Eaton, Geol. Textb., 2d ed., 1882, p. 39, pi. 4, fig. 43.?Clarke, 11th Rep. State Geol. New York, 1894, p. 34.?45th Rep. New YorkState Mus., 1894, p. 350.Clinton: New Hartford, New York. This species has been identified in theSilurian at numerous American localities.Buthotrephis gracilis crassa Hall.Buthotrephis gracilis var. crassa Hall, Pal. New York, 2, 1852, p. 19, pi. 5, fig.3a-d; 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 221, pi. 1, fig.6.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 101, fig.Dendrograptus gracilis var. crassa James, Jour. Cincinnati Soc. Nat. Hist, 7, 1885,p. 159.Silurian: Oneida County, etc., New York (Clinton); Waldron, Indiana (Waldron);Ontario (Cataract), etc.Buthotrephis gracilis intermedia Hall.Buthotrephis gracilis var. intermedia Hall, Pal. New York, 2, 1852, p. 19, pi. 5,fig. 2a, b. BIBLIOGEAPHIC LIST OF GENEBA AND SPECIES. 145Buthotrephis gracilis intermedia?Continued.Dendrograptus gracillimum var. intermedia James, Jour. Cincinnati Soc. Nat.Hist., 7, 1885, p. 161.Early Silurian: New Hartford, New York (Clinton); Ontario (Cataract), etc.Buthotrephis Granti Dawson. See Inocaulis grantii.Buthotrephis gregaria Ringueberg.Buthotrephis gregaria Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1888, p.131, pi. 7, fig. 1.Clinton (Rochester) : Lockport, New York.Buthotrephis Hallii Humphreys. See Buthotrephis gracilis.Buthotrephis impudica Hall.Buthotrephis impudica Hall, Pal. New York, 2, 1852, p. 20, pi. 6, fig. 2.Clinton: New Hartford, New York.Buthotrephis lesquereuxi Grote and Pitt.Buthotrephis Lesquereuxi Grote and Pitt, Bull. Buffalo Soc. Nat. Sci., 3, 1876,p. 88.?Pohlman, ibid., 4, 1881, p. 19, fig. 6.Bythotrephis lesquereuxi Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 131,fig. 26; Bull. New York State Mus., 45, 1901, p. 131, fig. 26.Cayugan (Akron) : Buffalo, New York.Buthotrephis newlini White.Buthotrephis newlini David White, Proc. U. S. Nat. Mus., 24, 1902, p. 266, pis.17, 18.Cayugan (Kokomo): Kokomo, Indiana.Buthotrephis palmata Hall.Buthotrephis palmata Hall, Pal. New York, 2, 1852, p. 20, pi. 6, %. 1; pi. 7, fig.la, b.Clinton: New Hartford, New York.Buthotrephis pergracilis Dawson.Buthotrephis pergracilis Dawson, Canadian Rec. Sci., 3, 1888, p. 55.?Dawson.Trans. Royal Soc. Canada, 7, sec. 4, 1890, p. 54, fig. 27; 2d ser., 2, sec. 4, 1S96,p. 120, fig. 32.Canadian? (Levis?): Little Metis, Quebec.Buthotrephis ramosa Hall.Buthotrephis ramosa Hall, Pal. New York, 2, 1852, p. 21, pi. 6, fig. 3.Clinton: New Hartford, New York.Buthotrephis ramulosa Miller.Buthotrephis ramulosus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 235, fig.29.?James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 159.Bythotrephis ramulosus Miller, N. A. Geol. Pal., 1889, p. 109, fig. 19.Trenton (upper) or Eden (Fulton): Cincinnati, Ohio, and vicinity.Buthotrephis subnodosa Hall.Buthotrephis subnodosa Hall, Pal. New York, 1, 1847, p. 262, pi. 68, figs. 3a, b.?Goeppert, Nov. Act. Acad. Caes. Leop. Car., 22, Suppl. (Uebergangsgeb.), 1852,p. 86.Utica-Pulaski: Turin, Loraine, and Pulaski, New York.84243??Bull. 92?15 10 146 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Buthotrephis succiilens Hall.Buthotrephis succulens Hall, Pal. New York, 1, 1847, p. 62, pi. 22, figs. 2a, b.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 152, fig. 25.Buthotrephis succulosa James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 159.Bythotrephis succulens Miller, N. A. Geol. Pal., 1889, p. 110.Licrophycus succulens Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 937(gen. ref.).Trenton: Glens Falls, New York.Btjthotrephis succulosa James. See Buthotrephis succulens.Buthotrephi-s tenuis (Hall).Buthotrephis gracilis Hall, Pal. New York, 1, 1847, p. 62, pi. 21, fig. 1.?Nichol-son, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 7, fig. 1.?Etheridge, Quart.Jour. Geol. Soc. London, 39, 1878, p. 574.-?Chamberlin, Geol. Wisconsin, 1,1883, p. 152, fig. 26b.Buthotrephis conf. gracilis Emerson, NarratiA^e Hall's Second Arctic Exped.,U. S. Navy Dep., 1879, p. 575, fig. 1.Buthotrephis tenuis Hall, Pal. New York, 2, 1852, p. 18.Bythotrephis tenuis Chapman, Proc. Royal Soc. Victoria, 15, new ser., 1903,p. 104, pi. 16, fig. 1.Trenton: Jacksonburgh and Middleville, Herkimer County, New York.Buthotrephis yukonensis Ami.Bythotrephis yukonensis Ami., Canadian Geol. Surv., Summ. Rep. for 1904,1905, p. 388.Lower Paleozoic?: Seven miles north Dalton's Post, Unihana River, Yukondistrict, Canada.BYSSONYCHIA Ulrich. Genot}T)e: Ambonychia radiata Hall.Ambonychia (part) Hall, Pal. New York, 1, 1847, p. 163; 3, 1859, pp. 269 and 523;also of many American and Eiu-opean authors.Byssonychia, Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 498; Geol. Smv. Ohio,7, 1893, p. 629.?Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana,1908, p. 979.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 431.?Dall.Zittel-Eastman Textb. Pal., 1900, p. 368; 2d. ed., 1913, p. 445.Byssonychia acutlrostris Ulrich.Byssonychia acutirostris Ulrich, Geol. Surv. Ohio, 7, 1893, p. 634, pi. 45, figs.8, 9; pi. 46, fig. 10.Maysville (Fairmount): Cincinnati, Ohio, and Aacinity.Holotype.?Gat. No. 46095 U.S.N.M.Byssonychia alveolata Ulrich.Byssonychia alveolata, Ulrich, Geol. Surv. Ohio, 7, 1893, p. 631, pi. 48, figs.1-3.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 989,pi. 42, figs. 7, 7a.Maysville (Corryville): Cincinnati, Ohio; southeastern Indiana.Holotype?Cat. No. 46096, U.S.N.M.Byssonychia(?) byrnesi Ulrich.Byssonychia(?) byrnesi Ub-ich, Geol. Surv. Ohio, 7, 1893, p. 635, pi. 47, figs.4 and 5.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 431, fig. 563.?Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 134, pi. 3, fig. 6.Trenton (Upper): Covington, Rogers Gap, etc., Kentucky; Tennessee.Cotypes.?Cat. No. 46097, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 147Byssonychia carinata (Goldfuss).Pterinea carinata Goldfuss, Petref. Germ., 1826, p. 136, pi. 119, fig. 8.?Vanuxem,Nat. Hist. New York, Geol., 3, 1842, p. 64, p. 65, fig. 1.?Emmons, ibid.,Geol., 2, 1842, p. 402, fig. 1.?Owen, Amer. Jour. Sci. and Arts, 47, 1844,p. 376, fig. 1.Avicula carinata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 175, pi. 17, fig. 23.Ambonychia carinata Hall, Pal. New York, 1, 1847, p. 294, pi. 80, figs. 5a, b;Geol. Lake Sup. Land Dist., Foster and Whitney's Kep., 1851, p. 215, pi. 31,fig. 3; Pal. New York, 3, 1861, p. 269.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 22, fig.Byssonychia carinata Foerste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 324.Cincinuatian (Pulaski): Lewistown, Oneida County, New York.Byssonychia cultrata Ulrich.Byssonycliia cultrata, Ulrich, Geol. Surv. Ohio, 7, 1893, p. 632, pi. 45, figs. 5-7.Richmond (Waynes\'ille): Waynesville, Ohio; Versailles, Indiana.Cotypes.?Cut. Nos. 46098, 46596, U.S.N.M.Byssonychia grandis Ulrich.Byssonychia gi-andis Ulrich, Geol. Surv. Ohio, 7, 1893, p. 631, pi. 46, figs. 6-9.?Cumings, 32d Ann. Bep. Dep. Geol. Nat. Res. Indiana, 1908, p. 990, pi. 44,figs. 1, la.Richmond (Waynesville-Whitewater): Oxford, Clarksville, etc., Ohio; Indiana.Cofijpes.?C-dt. Nos. 46099, 46100, U.S.N.M.Byssonychia imbricata Ulrich.Byssonychia imbricata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 635, pi. 46, figs.4 and 5.Maysville (Corryville): Cincinnati, Ohio.Holoiype?Cat. No. 46101, U.S.N.M.Byssonychia intermedia (Meek and Worthen).Ambonychia intermedia Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 306,pi. 2, fig. 5a, b.Byssoncliia intermedia Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 499, pi. 35, figs.23-26.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 182.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 431, fig. 562a, b.Trenton: Mount Carroll, Illinois; Oshkosh, Wisconsin; Wykoff, Minnesota; LakeWinnepeg, Canada; Kentucky.Plesiotype.?Cat. No. 46102, U.S.N.M.Byssonychia obesa Ulrich.Byssonycliia obesa Uh-ich, Geol. Surv. Ohio, 7, 1893, p. 630, pi. 45, figs. 10-12.?WTiiteaves, Pal. Foss., 2, Geol. Surv. Canada, 3, 1895, pt. 2, p. 122 (loc.occ).?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 991,pi. 42, figs. 8, 8b.Ambonychia obesa Miller, N. A. Geol. Pal., 1897, 2d App., p. 779 (gen. ref.).Richmond: Richmond, Indiana (Whitewater); Stony Mountain, Manitoba.Holotype.?C'At. No. 46103, U.S.N.M.Byssonychia praecursa Ulrich.Byssonychia praecursa Ulrich, Geol. Surv. Ohio, 7, 1893, p. 633, pi. 45, figs. 1, 2. ? Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 992, pi. 43,figs. 3, 3a.?Grabau and Shimer, N. A. Index Fossils. 1, 1909, p. 432, fig. 565.Maysville: Lorraine, New York (Pulaski); Covington, Kentucky, and vicinity(Fairmount).Cotype.~C&t. No. 46104, U.S.N.M. 148 BULLETIISr 92, UNITED STATES NATIONAL MUSEUM.Byssonychia radiata (Hall).Ambonychia radiata Hall, Pat. New York, 1, 1847, p. 292, pi. 80, figs. 4a-l.?Billings, Canadian Nar. Geol., 1, 1856, p. 44, fig. 7.?Hall, 12th Rep. NewYork State Cab. Nat. Hist., 1859, p. 8, fig.; p. 110, figs. 1, 2.?Lincklaen.14th Rep. New York State Cab. Nat. Hist., 1861, pi. 4, fig. 7.?Hall, Pal.New York, 3, 1861, p. 269, fig.; p. 523, figs. 1, 2.?Chapman, Canadian Jour.,n. 8., 7, 1862, p. 166, fig. 110; ibid., 8, 1863, p. 206, fig. 205.?Hall, Rep. Geol.Surv. Wisconsin, 1862, p. 54, figs. 1, 2.?Billings, Geol. Canada, Geol. Surv.Canada, 1863, p. 215, fig. 219.?Chapman, Expos. Min. Geol. Canada, 1864,p. 120, fig. 110; p. 178, fig. 205.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874,pp. 14, 15.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 35, fig. 11.?Hall and ^Vhitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 79, pi. 2, fig. 2.?Roemer, Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 4, fig. 17.?Zittel, Handb.Pal., 2, 1881, p. 35, fig. 42b.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 174,fig.?Miller, N. A. Geol. Pal., 1889, p. 461, fig. 771.?Lesley, Geol. Pennsyl-vania, Rep. P 4, 1889, p. 23, figs.Byssonychia radiata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 477, fig. 35VI. ? Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 993, pi. 43,fig. 4.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 432, fig. 562c,566.?Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, pi. 14, fig. 7.?Foerste,Bull. Sci. Lab. Denison Univ., 17, 1914, p. 273, pi. 3, figs. 12a-c.Mays\'ille-Pdchmond : Turin, Lorraine, Pulaski, etc.. New York, and Quebec(Pulaski); Ohio; Indiana; Kentucky; Virginia; Tennessee (Maysville andRichmond); Anticosti, etc., Canada.Plesiotype?Cat. No. 46105, U.S.N.M. (Uhrich).Byssonychia retrorsa (Miller).Ambonychia retrorsa Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 104, pi.3, fig. 6.Byssonychia retrorsa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 499 (gen. ref.).Maysville (Fairmount) : Cincinnati, Ohio.Byssonychia richmondensis Ulrich.Ambonychia robusta Miller (part). Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p.315.Byssonychia richmondensis Ulrich, Geol. Surv. Ohio, 7, 1893, p. 632, pi. 45,figs. 3, 4.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.994, pi. 44, figs. 2-2a.Richmond ("^Tiitewater) : Richmond, etc., Indiana.Holotype?Cat. No. 46106, U.S.N.M.Byssonychia robusta (Miller).Ambonychia robusta Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1881, p. 315, pi.g, figs. 3, 3a.Byssonychia robusta Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 499 (gen. ref.).Richmond (Whitewater): Osgood, Indiana.Byssonychia suberecta Ulrich.Byssonychia suberecta Ulrich, Geol. Surv. Ohio, 7, 1893, p. 634, pi. 45, figs. 13-15.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 995,pi. 44, figs. 3-3b.Richmond (Waynesville) : Waynes\'ille, Ohio; Versailles, Indiana.Cotypes.?Cat. No. 46107, U.S.N.M.Byssonychia tennistriata Ulrich.Byssonychia tenuistriata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 500, fig. 39.Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 996, pi. 43,figs. 5, 5a. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 149Byssonychia tenulstriata?Continued.Ambonychia tenulstriata Miller, N. A. Geol. Pal., 2d App., 1897, p. 779 (gen. ref.).Richmond: Granger and Spring Valley, Minnesota (Maquoketa); Richmond,Indiana (AMiitewater).Byssonychia vera Ulrich.Byssonychia vera Ulrich, Geol. Surv. Ohio, 7, 1893, p. 629, figs. a-c.?Foerste,Jour. Cincinnati Soc. Nat. Hiat., 21, 1914, p. 134, pi. 1, fig. 15.Ambonychia bellistriata. Miller (not Hall, 1847), Cincinnati Quart. Jour. Sci., 1,1874, p. 14.Byssonychia radiata (Hall) new var., Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p.479, fig. 36V.Ambonychia cincinnatiensis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist.,17, 1894, p. 24, pi. 1, figs. 8-10.Eden: Cincinnati, Ohio, and vicinity.Trenton (Upper): Rogers Gap, etc., Kentucky.Cotypes.?CsLt. No. 46108, U.S.N.M.Byssonychia walkerensis Grabau.Byssonychia walkerensis Grabau, Bull. Geol. Soc. Amer., 24, 1913, p. 454.Mays^dlle (Bays): Big Walker Mountain, Virginia.Bythocladus Whitfield. See Buthograptus Hall.BYTHOCYPRIS Brady. Genotype: B. reniformis Brady.Bythocypris Brady, "Challenger" Exped. Rept. Ostracoda, 1880, p. 45.?^Jonesand Kirkby, Ann. Mag. Nat. Hist., 5th ser., 18, 1886, p. 250; Proc. Geol. Assoc,9, 1897, p. 510.?Jones, Ann. Mag. Nat. Hist., 5th. ser., 19, 1887, p. 184.?Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 196.?Miller, N. A.Geol. Pal., Ist App., 1892, p. 706.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894,p. 686; Zittel-Eastman Textb. Pal., 1, 1900, p. 646.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 365.?Bassler, Zittel-Eastman Textb. Pal.,2d ed., 1913, p. 740.Bythocypris(?) curta Ulrich.Bythocypris (?) curta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 689, pi. 44, figs.36-38.Black River (Decorah): St. Paul, Minnesota.nolotype.?C&t. No. 41794, U.S.N.M.Bythocypris cylindrica (Hall).Leperditia (Isochilina) cylindrica Hall, 24th Rep. New York State Cab. Nat.Hist., 1872, p. 231, pi. 8, fig. 12 (Extract, 1871, p. 7, pi. 4, fig. 12).?Hall andWliitfield, Geol. Surv. Ohio, Pal. 2, 1875, p. 101, pi. 4, fig. 5.Leperditia cylindrica Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 122; 2,1875, p. 351.Bythocypris cylindrica Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 687, pi. 44,figs. 29-35, p. 688.?Ukich, Geol. Surv. Canada, Cont. Micro-Pal., pt. 2,1889, p. 48, pi. 9, fig. 6.?Ruedemann, Bull. New York State Mus., 49, 1901,p. 86, pi. 7, figs. 26, 28.Bythocypris (Cytherellina?) cylindrica Grabau and Shimer, N. A. Index Fos-sils, 2, 1910, p. 365, fig. 1666.Primitia minuta Jones (part), Quart. Jour. Geol. Soc. London, 46, 1890, p. 7, pi.3, figs. 18, 19 (not figs. 21-23).Trenton to Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky;Tennessee; Minnesota; Now York; Ontario, Manitoba; etc.Plesiotype8.~Cd.t. Nos. 41795, 41796, U.S.N.M. 150 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bythocypris granti Ulrich.Bythocypris granti Ulrich, GeoL Minnesota, 3, pt. 2, 1894, p. 689, pi. 44, figs.39-42.Black River (Decorah): St. Paul and Minneapolis, Minnesota.Cotypes.?C&t. No. 41793, U.S.N.M.Bythocypris? lindstrcemi Jones.Bythocypris? Lindstroemii Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p.548, pi. 21, figs, lla-c.Richmond (English Head and Charleton): South of Junction Cliff, Anticosti.Bythocypris nearpassi Waller.Bythocypris nearpassi Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 257, pi.23, fig. 12.Helderbergian (Decker Ferry): Two miles south Tri-States, New York.Bythocypris? obtiisa Jones.Bythocypris? obtusa Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 549, pi.21, figs. 4a, b.Richmond (English Head and Charleton): English Head, etc., Anticosti.Bythocypris punctiilata arctata Ulrich and Bassler.Bythocypris punctulata var. arctata Ulrich and Bassler, Maryland Geol. Surv.,Low. Dev., 1913, p. 540, pi. 98, fig. 22.Helderbergian (Keyser): Cumberland, Maryland; Keyser, West Virginia.Holotype.?Cat. No. 53290 U.S.N.M.Bythocypris punctulata uiagarensis Ulrich.Bythocypris punctulata niagarensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13,1891, p. 196.Clinton (Rochester): Lockport, New York.Eolotype.?Cat. No. 41797, U.S.N.M.Bythocypris(?) robusta Uhich.Bythocypris (?) robusta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 690, figs. 52a-d.Bythocypris (?) (Cytherellina?) robusta Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 365, fig. 1667, 1, V, m, n.Black River (Platteville): Dixon, Illinois.Jlolotype.?Cat. No. 41728, U.S.N.M.BYTHOPORA Miller and Dyer.Genotype: B. fruticosa Miller and Dyer=Helopora dendrina James.Bythopora Miller and Dyer, Contr. Pal., No. 2, 1878, p. 6.?Miller, N. A. Geol.Pal., 1889, p. 295.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 370; Geol. Minne-sota, 3, 1893, p. 263; Zittel's Textb. Pal. (Eng. ed.), 1896, p. 277.?Simpson,14th Ann. Rep. State Geol. New York for 1894, 1897, p. 551.?Nicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 32.?Grabau, Bull.Buffalo Soc. Nat. Sci., 7, 1901, p. 166; Bull. New York State Mus., 45, 1901,p. 160.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 29.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 133.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 741.?Hennig, Archiv fur Zool., 4, No.10, 1908, p. 44.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 240; Zittel-Eastman Textb. Pal., 1913, p. 335.Bythopora alclcornls Ulrich.Bythopora alcicornis Ulrich, Geol. Minnesota, 3, 1893, p. 264, pi. 26, figs. 7-9. ? Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 551, fig.121.Black River (Decorah): Near Cannon Falls, ^Minnesota.Cotypes.?Cat. No. 43514, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 151Bythopora arctipora (Nicholson).Ptilodictya? arctipora Nicholson, Ann. Mag. Nat. Hist., 4th ser., 15, 1875, p. 180,pi. 14, figs. 4-4b; Pal. Ohio, 2, 1875, p. 262, pi. 25, figs. 9-9b.?Lesley, Geol.Surv. Pennsylvania, Rep. P. 4, 1889, p. 825, figs.Bythopora arctipora Miller and Dyer, Contr. to Pal., No. 2, 1878, p. 6.?Bassler,Proc. U. S. Nat. Mus., 30, 1906, p. 19, pi. 2, figs. 1, 2.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 780, pi. 8, fig. 8; pi. 26, fig. 15, 15a.Chsetetes minutus James, Paleontologist, 3, 1879, p. 20 (see James and James,Jour. Cincinnati Soc. Nat. Hist., 10, p. 173).Eden: Cincinnati, Ohio, and vicinity.Bythopora delicatula (Nicholson).Chsetetes delicatulus Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 505,pi. 29, figs. 8-8b; Pal. Ohio, 2, 1875, p. 199, pi. 21, figs. 9, 9a; Pal. ProvinceOntario, 1875, p. 30.Monticulipora delicatula James and James, Jour. Cincinnati Soc. Nat. Hist., 10,1888, p. 173.?Miller, N. A. Geol. Pal., 1889, p. 197, fig. 196.Bythopora? delicatula Ulrich, Contr. Micro-Pal., Cambro-Sil., pt. 2, 1889, p. 36.?Wbiteaves, Pal. Foss., 3, 1895, p. 116.?Nickles and Bassler, Bull. U. S.Geol. Surv., 173, 1900, p. 184.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 781, pi. 8, fig. 7; pi. 27, fig. 1.?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 133.Richmond: Oxford, Waynesville, etc., Ohio; Richmond and other localities inIndiana; Weston and Toronto, Ontario; Stony Mountain, Manitoba.Bythopora dendrina (James).Helopora dendrina James, Paleontologist, No. 1, 1878, p. 3; No. 2, p. 14.Bythopora dendrina Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.185.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 20.Bythopora fruticosa Miller and Dyer, Contr. Pal., No. 2, 1878, p. 6, pi. 4, figs. 6,6a.?Miller, N. A. Geol. Pal., 1889, p. 295, fig. 4G1.Maysville (Fairmount) Cincinnati, Ohio, and vicinity.Bythopora fruticosa Miller and Dyer. See Bythopora dendrina.Bythopora gracilis (Nicholson).Chaetetes gracilis James, Cat. Low. Sil. Foss. Cincinnati Group, 1871, p. 3. ? Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 504, pi. 29, figs. 7, 7a;Pal. Ohio, 2, 1875, p. 198, pi. 21, figs. 8, 8b; Pal. Province Ontario, 1875, p.11; Ann. Mag. Nat. Hist., 4th ser., 28, 1876, p. 90, pi. 5, fig. 13.Monticulipora (Heterotrypa) gracilis Nicholson, Genus Monticulipora, 1881,p. 125, pi. 2, figs. 1-lb, 20.Monticulipora gracilis Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p.248, pi. 10, figs. 1-3; pi. 11, fig. 11.?James and James, Joiu". Cincinnati Soc.Nat. Hist., 10, 1888, p. 173.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 420, figs.?James, Jour. Cincinnati Soc. Nat. Hist., 1894, 16, p. 191.Batostomella graciUs Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 141;6, 1883, p. 83; 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p.103; Contr. Micro-Pal., Cambro-Sil., pt. 2, 1889, p. 35.?Miller, N. A. Geol.Pal., 1889, p. 294, fig. 458.?Ulrich, Geol. Surv. IlUnois, 8, 1890, p. 432,pi. 35, fig. 2.Homotrypella gracilis Ulrich, Geol. Minnesota, 3, 1893, p. 228.?^\^liteaves,Pal. Foss., 3, 1895, p. 115.Bythopora gracilis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 185.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 20.?Cumings, 32d Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1908, p. 782, pi. 8, figs. 6, 6b; pi. 27. figs.2,2a. 152 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Bythopora gracilis?Contmued.Ohsetetes Iseviramus Quenstedt, Roehren-und Sternkorallen, 1881, p. 81, pi. 146,fig. 2b.Maysville: Cincinnati, Ohio, and \icimty; Kentucky; Indiana; Tennessee.Plesiotypes.?Csit. No. 43408, U.S.N.M. (Ulrich).Bythopora herricki (Ulrich).Bythopora herricki Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 188G,p. 99; Geol. Minnesota, 3, 1893, p. 263, pi. 26, figs. 1-6.?Simpson, 14thAnn. Rep. State Geol. New York for 1894, 1897, p. 551, fig. 120.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 133, fig. 188e, 190e.Black River (Decorah) : St. Paul, Minnesota, and vicinity.Cotypes.?Cat. No. 43513, U. S.N.M.Bythopora ineeki (James).Chsetetes meeki James, Paleontologist, No. 1, 1878, p. 1.Monticulipora (Chaetetes) meeki James, Paleontologist, No. 5, 1881, p. 35.Monticulipora gracilis var. meeki Nicholson, Genus Monticulipora, 1881, p. 127.Monticulipora meeki James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888,p. 174.?J. F. James, ibid., 16, 1894, p. 192.Homotrypella meeki Ulrich, Geol. Minnesota, 3, 1893, p. 228.Bythopora meeki Nicklesand Bassler, Bull. U. S. Geol. Smv., 173, 1900, p. 185.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 21.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 783, pi. 8, figs, 5, 5a; pi. 27, fig. 5.Richmond: Waynesville and other localities in Ohio, Richmond, etc., Indiana;Kentucky.Bythopora nashvillensis Miller. See Rhinidictya nashvillensis.Bythopora parvula (James).Helopora parvula James, Paleontologist, No. 1, 1878, p. 3.Bythopora parvula Nickles and Bassler, Bull. U. S. Geol. Siu^., 173, 1900, p. 186. ? Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 22, pi. 3, figs. 11, 12; pi. 5, fig. 4.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 783, pi. 27,fig. 3.Eden (McMicken): Obanon Creek, Clermont County, Cincinnati, etc., Ohio;Indiana; Kentucky.Bythopora spinulosa (Hall).Trematopora spinulosa Hall, Pal. New York, 2, 1852, p. 155, pi. 40A, figs, lla-c.Bythopora spinulosa Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.180.?Grabau, Bull. New York State Mus., 45, 1901, p. 166, fig. 64; Bull.Buffalo Soc. Nat. Sci., 7, 1901, p. 166, fig. 64.?Bassler, Bull. U. S. Geol.Surv., 292, 1906, p. 29, pi. 13, figs. 6, 7; pi. 24, figs. 12, 13.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 134, fig. 189.Clinton (Rochester): Lockport, Rochester, etc.. New York; Thorold, Hamilton,and Grimsby, Ontario.Plesiotypes.?Csit. No. 35516, U.S.N.M.Bythopora striata Ulrich.Bythopora striata Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 36.?WTiiteaves, Pal. Foss., 3, 1895, p. 116.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 784, pi. 27, fig. 4.Richmond: Stony Mountain, Manitoba (Stony Mountain); Anticosti (EnglishHead); Ohio; Indiana; Kentucky (Arnheim and Waynesville).Cotypes.?Csit. No. 44064, U.S.N.M. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 153Bythopora .subgracilis (Uhich).Homotrypella? subgracilis Ulricli, Geol. Minnesota, 3, 1893, p. 230, pL 26, figs.10-16.Bythopora Bubgracilia Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 241, 242, figs.135, 136.Black River (Decorah): Minneapolis, Minnesota, and vicinity.Ordovician (Wassalem): Uxnorm, Estlionia, Russia.Cotypes and phsiotypes.?C&i. Nos. 43558, 57314, U.S.N.M.Bythotrephis Roemer. See Buthotrephis Hall.Bythotrypa Ulrich. See Favositella Etheridge and Foord.CACTOGRAPTUS Ruedemann. Genotype: C. crassus Ruedemann.Cactograptus Ruedemann, Mem. Nev?- York State Mus., 11, pt. 2, 1908, p. 196.Cactograptus crassus Ruedemann.Cactograptus crassus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,p. 197, pi. 8, fig. 1, figs. 99-101.Upper Clinton: Clinton, Oneida County, New York.Calamena Eaton. See Calymene Brongniart.Calamopora Goldfuss. See Favosites Lamarck.Calamopora cellulata Castelnau. Not recognized.Calamopora cellulata Castelnau, Syst. Sil. I'Amer. Nord., 1843, p. 46.Silurian: Point Latour, Lake Huron.Calamopora favosa Goldfuss. See Favosites favosus.Calamopora fibrosa Eichwald. See Dianulites petropolitana.Calamopora fibrosa Roemer. See Hindia ephaeroidalis.Calamopora forbesi var. discoidea Roemer. See Favosites discoidea.Calamopora goldfussi Castelnau. See Favosites goldfussi.Calamopora gothlandica Goldfuss. See Favosites gothlandica.Calamopora maximus Troost. See Favosites maxima.Calamopora minuta Castelnau. Not recognized.Calamopora minuta Castelnau, Terr. Sil. de I'Amer. du Nord, 1846, p. 46.Silurian: Drummond Island, Lake Huron, etc.Calamopora minutissima Castelnau. Not recognized.Calamopora minutissima Castelnau, Terr. -Sil. de I'Amer. du Nord, 1843, p. 46,pi. 18, fig.Silurian: Drummond Island, Lake Huron.Calamopora radians Castelnau.Calamopora radians Castelnau, Terr. -Sil. de I'Amer. Nord, 1843, p. 46, pi. 18, fig. 1.Silurian: Buffalo, New York.Observation.?Not recognized. Figure represents basal side of some Favosites,probably a Devonian species.Calamopora venusta Rominger. See Favosites hisingeri.Calamopora verneuili Castelnau.Calamopora Verneuili Castelnau, Sil. Syst., 1843, p. 47.Ordovician: Near Quebec, Canada.Observation.?Not recognized. Refers to some ramose trepostomatous l>ryo-zoan with monticules. 154 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.CALAPflECIA Billings. GenotjT)e: C. canadensis Billings.Calapoecia Billings, Canadian Nat. GeoL, n. s., 2, 1865, p. 425.?Nicholson, Tab.Corals Pal. Period, 1879, p. 162.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883,p. 433.?Miller, N. A. Geol. Pal., 1889, p. 174.?James, Jour. Cincinnati Soc.Nat. Hist., 15, pt. 4, 1893, p. 150.?Sardeson, Neues Jahrb. f. Min., Geol.Pal., Beilage-Band, 10, 1896, p. 295.?Lindstrom, Kongl. Sven. Vet.-Akad.Handl., 32, No. 1, 1899, p. 24.?Lambe, Cont. Canadian Pal., Geol. Surv.Canada, 4, pt. 1, 1899, p. 42.?Etheridge, Rec. Australian Mus., 5, 1903, p.18.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 699.Colunmopora Nicholson, Geol. Mag., dec. 2, 1, 1874, p. 253; Geol. Sur\'. Ohio, Pal.,2, 1875, p. 186; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 25; Tab. Corals Pal.Period, 1879, p. 159.?Zittel, Handb. Pal., 1, Munich, 1879, p. 237.?Roemer,Leth. geog., pt. 1, Leth. Pal., 1883, p. 433.?Beecher, Trans. ConnecticutAcad. Arts and Sci., 8, 1891, p. 212.?Lindstrom, Kongl. Sven. Vet.-Acad.Handl., 32, No. 1, 1899, p. 25. (Genotype: C. cribriformis Nicholson.)Houghtonia Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 18.?Roemer,Leth. geog., pt. 1, Leth. Pal., 1883, p. 433.?Sardeson, Neues Jahrb. f. Min.,Geol. Pal., Beilage-Band, 10, 1896, p. 276.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 32, No. 1, 1899, p. 25. (Genot>T)e: H. huronica Rominger.)Calapoecia anticostieusis Billings.Calapoecia Anticostieusis Billings, Canadian Nat. Geol.,n. s., 2, 1865, p. 426;Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 32, figs. 15a, b.?Nicholson, Tab. Corals Pal. Period, 1879, p. 163.Calapoecia Canadensis Billings, Canadian Nat. Geol., n. s., 2, 1865, p. 426. ? Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1889, p. 43, pi. 1,figs. 6, 6a, 7.?Nicholson, Tab. Corals Pal. Period, 1879, p. 163.?WTiiteaves,Pal. Foss., Geol. Surv. Canada, 2, pt. 3, 1897, p. 157.?Schuchert, Proc. U. S.Nat. Mus., 22, 1900, p. 154.Richmond and Gamachian (English Head?Ellis Bay): Gamache Bay, etc.,Anticosti (C. anticostieusis).Black River: Near Ottawa, Canada; Baffin Land, etc. (A. canadensis).Observation.?Although considered the same species at present, C. canadensismay be an early variety of C. anticostiensis. It is also possible that the tj^es ofC. canadensis were derived from the Richmond and not from the Black River.Calapoecia borealls WTiitfield.Calapoecia borealis WTiitfield, Bull. Amer. Mus. Nat. Hist., 13, 1900, p. 20, pi. 2,figs. 3-7.Niagaran: Cape Harrison, Princess Marie Bay, Greenland.Calapcecia canadensis Billings (part). See Calapoecia anticostiensis.Calapoecia cribriformis (Nicholson).Colunmopora cribriformis Nicholson, Geol. Mag., dec. 2, 1, 1874, p. 253; Geol.Surv. Ohio, Pal., 2, 1875, p. 187, pi. 22, figs. 8, 8b; Rep. Pal. Pi-ov. Ontario,pt. 2, 1875, p. 25; Tab. Corals Pal. Period, 1879, p. 164, pi. 7, figs. 2-2d.?TVTiiteaves, Rep. Progr., Geol. Surv. Canada, 1880, p. 48C; 1881, p. 570.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 434, fig. 103.?Davis, Ken-tucky Fossil Corals, Geol. Sm^'. Kentucky, pt. 2, 1885, pi. 5, figs. 2, 4, 5; pi.6, fig. 2.Calapcecia cribriformis Miller, N. A. Geol. Pal., 1889, p. 175, fig. 141.?James,Jour. Cincinnati Soc. Nat. Hist., 15, pt. 4, 1893, p. 150.?Sardeson, NeuesJahrb. f. Min., Geol. Pal., Beilage-Band, 10, 1896, p. 295, text figs. 23, 24.?Foerste, Amer. Geology, 31, 1903, pp. 343, 345.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 701, pi. 1, figs. 3-3b; pi. 5, fig. 1.?Foerste,Bull. Sci. Lab. Denieon Univ., 14, 1909, p. 310, pi. 11, fig. 4. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 155Calapoecia cribriformls?Continued.Houghtonia huronica Rominger, Geol. Sin-v. Michigan, 3, pt. 2, 1876, p. 18, pi. 3,figs. 3, 4.?Sardeson, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 10,1896, p. 276, 277, text fig. 13, 14.Calapoecia Huronensis Billings, Canadian Nat. Geol., n. s., 2, 1865, p. 426. ? Nicholson, Tab. Corals Pal. Period, 1879, p. 163.Columnopora rayi Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, pi. 5, figs. 1, 3; pi. 6, fig. 1.Richmond: Waynesville, Clarksville, Oxford, Ohio; Richmond, Indiana ; Marionand other counties in Kentucky (Waynesville-Elkhorn) ; Anticosti (Charleton);Ontario, Drummond Isle, etc.Calapoecia favositoidea Savage.Calapoecia favositoidea Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 64, pi. 3,figs. 1-3.Upper Medinan (Edgewood): Near Edgewood and Louisiana, and south of Clarks-ville, Pike County, Missomi.Calapcecia huronensis Billings. See Calapoecia cribriformis.CALATHIUM Billings. Genotype: C. formosum Billings.Calathium Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 208, 209.?Hinde,Quart. Jour. Geol. Soc. London, 45, 1889, p. 144.?Miller, N. A. Geol. Pal.,1889, p. 155.Calathium afflne Billings.Calathium affine Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 209, fig. 193.Canadian (Quebec?G): Cape Norman, Newfoundland.Calathium anstedi Billings.Calathium Anstedi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 210,fig. 194; p. 337, figs. 325a, b.?Hinde, Quart. Jour. Geol. Soc. London, 45,1889, p. 144.Canadian (Quebec?H): Pistolet Bay, Newfoimdland.Calathium canadense Billings.Calathium Canadense Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 377,text fig. 351.?Miller, N. A. Geol. Pal., 1889, p. 155, text fig. 93.Chazyan (Mingan): Mingan Islands, Canada.Calathium flttoni Billings.Calathium Fittoni Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 211, fig. 195.Chazyan (Quebec): Point Rich, Newfoundland.Calathium formosum Billings.Calathium formosum Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 209,fig. 192.?Miller, N. A. Geol. Pal., 1889, p. 155, fig. 94.Canadian (Quebec?G): Cape Norman, Newfoundland.Calathium (?Zittclella) infelix Ulrich and Everett.Calathium (?Zittelella) infelix Ulrich and Everett, Geol. Surv. Illinois, 8, 1890,p. 274, pi. 5, figs. 1, la.Black River (Platte\'ille): Near Dixon, Illinois.Calathium? panuosum Billings.Calathium? pannosum Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 335,figs. 324a, b.Ozarkian? (Levis-erratic) : Point Levis, Quebec. 156 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Calathium? paradoxicum Billings. See Nipterella paradoxica.Calaurops WTiitfield. See Eccyliomphalus Portlock.Calceocrinus of authors. See Deltacrinus, Eucheirocrinus, and Cremacrinus.Calceocrinus Hall. Not recognized.Calceocrinus Hall, Pal. New York, 2, 1852, p. 352, pi. 85, figs. 5, 6.?Ulrich,14th Rep. Geol. Nat. Hist. Surv. Minnesota, 1886, p. 104.?Wachsmuth,Zittel-Eastman Textb. Pal., 1, 1900, p. 154.Observation.?This genus was based upon a small triangular plate without aspecific name and according to the rules of nomenclature can not be retained.Calceocrinus alleni Rowley. See Deltacrinus alleni.Calceocrinus articulosus Wachsmuth and Springer. See Cremacrinus articulosus.Calceocrinus bareandei Walcott. See Cremacrinus barrandei.Calceocrinus bidentatus Ringueberg.Calceocrinus bidentatus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 404,pi. 10, fig. 10.CUnton (Rochester): Lockport, New York.Observation.?Description and figure insufficient for recognition.Calceocrinus chrysalis Shumard. See Eucheirocrinus chrysalis.Calceocrinus contractus Ringueberg. See Deltacrinus contractus.Calceocrinus furcillatus Billings. See Cremacrinus furcillatus.Calceocrinus halli Ringueberg. See Deltacrinus halli.Calceocrinus in.equalis Wachsmuth and Springer. See Cremacrinus insequalia.Calceocrinus indianensis Miller. See Deltacrinus indianensis.Calceocrinus kentuckiensis Miller and Gurley. See Cremacrinus articulosus.Calceocrinus radiculus Ringueberg. See Eucheirocrinus radiculus.Calceocrinus rugosus Billings. See Cremacrinus rugosus.Calceocrinus stigmatus Hall. See Deltacrinus stigmatua.Calceocrinus tunicatus Hall. See Deltacrinus tunicatus.Calceocrinus typus Ringueberg. See Deltacrinus typus.CALCEOLA Lamarck. Genotype: C. sandalina Lamarck.Calceola Lamarck, Syst. Anim. sans Vert., 1801, p. 139.?Eichwald, Zool. Speci-alis, pt. 1, Vilnae, 1829, p. 289.?Steininger, Mem. Soc. Geol. France, 1, 1834p. 366.?Fischer de Waldheim, Orygtographie Gouv. de Moscou, 1837, p146.?Phillips, Pal. Foss. Cornwall, Devon, and W. Somerset, 1841, p. 54.?McCoy, Syn. Char. Carb. Foss. Ireland, 1844, pp. 103, 105.?MurchisonVerneuil, Keyserling, Geol. Russie d'Europe et Mont d I'Oural, 2, 845p. 45.?Davidson, Brit. Foss. Brachiopoda, Pal. Soc, 1853, p. 120.?Carpenter, ibid., p. 37.?Woodward, Man. Mollusca, pt. 2, 1854, p. 232, fig. 152; pi15, fig. 26.?Davidsun, Mem. Soc. Linneenne do Normandie, 10, 1856, p224.?Pictet, Traite Pal., 2d ed., 4, 1857, p. 65.?Goldfuss, Petrefacta Germaniae, 2d ed., pt. 2, 1863, p. 273.?Lindstrom, Geol. Mag., 3, 1866, pp. 359408, 411.?Dybowski, Archiv. f. Natur. Liv-, Ehst-und Kurl., 5, 1873, p BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 157CALCEOLA?Continued.340.?Zittel, Handb. Pal., 1, 1879, p. 236.?Lindstrom, Bihang till K. Sv.Vet.-Akad. Handl., 7, No. 4, 1882, p. 10.?Roemer, Leth. geog., pt. 1, Leth.Pal., 1883, p. 405.?Miller, N. A. Geol. Pal., 1889, p. 175.?Sherzer, Amer.Geol., 7, 1891, pp. 296-301.?Koken, Die Leitfossilien, Leipzig, 1896, p. 312,fig. 235.?Zittel-Eastraan Textb. Pal., 1, 1900, p. 80.?Grabau and Shimer,N. A. Index Fossils, 1, 1906, p. 77.?Zittel-Eastman Textb. Pal., 2d ed., 1913,p. 88.Rhizophylhim Lindstrom, Ofver. K. Vet.-Akad. Forhandl., 22, No. 5, 1865, p. 287;Geol. Mag., 3, 1866, pp. 359, 411.?Dybowski, Arcliiv f. Natiir. Liv-, Ehst-und Kurl., 5, 1873, p. 340.?Zittel, Handbuch d. Pal., 1, Munich, 1879, p.235.?Lindstrom, Bihang till K. Sv. Vet.-Akad. Handl., 7, No. 4, 1882,p. 22.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 407.?Sherzer, Amer.Geologist, 7, 1891, pp. 296-301.?Koken, Die Leitfossilien, 1896, p. 313.?Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 179. (Genotype: Calce-ola gotlandica Roemer.)Calceola Americana Safford. See Calceola tennesseensis.Caleeola (Rhizophylhim) attenuata (Lyon).Calceola attenuatus Lyon, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 45.Rhizophylhim attenuatum Lindstrom, Bihang till K. Sv. Vet.-Akad. Handl.,7, No. 4, 1882, p. 38, pi. 3, fig. 17.Calceola proteus Davis (part), Kentucky Fossil Corals, Geol. Surv. Kentucky, pt.2, pi. 131, figs. 1, 2, 12.Niagaran (Louisville) : Near Louisville, Kentucky.Plesiotype.?G-dt. No. 52774, U.S.N.M.Calceola (Rhizophyllum) cornlculum (Lyon).Calceola corniculum Lyon, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 43.Calceola coxii Lyon, ibid., 1879, p. 44.Calceola pusilla Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 419(ext. 1882, p. 15).Calceola proteus Davis (part), Kentucky Fossil Corals, Geol. Surv. Kentucky, pt.2, 1885, pi. 101, fig. 2, pi. 131, figs. 3-11, 13-17.Niagaran (Louisville) : Near Louisville, Kentucky.Plesiotypes.?C&t. No. 52774, U.S.N.M.Calceola coxii Lyon. See Calceola (Rhizophyllum) corniculum.Calceola proteus Davis. See Calceola (Rhizophyllum) attenuatus and Calceola(Rhizophyllum) corniculum.Calceola pusilla Hall. See Calceola (Rhizophyllum) corniculum.Calceola sandalina Troost. See Calceola tennesseensis.Calceola (Rhizophyllum) tennesseensis Roemer.Calceola s;vndalina Troost (not Lamarck), Trans. Geol. Soc. Pennsylvania, 1,1835, p. 249; 5th Geol. Rep. Tennessee, 1840, p. 47.?Verneuil, Bull. Geol.Soc. France, 1840, p. 176.Calceola tennesseensis Roemer, Leth. Geogn., 3d ed., Th. 2, 1854, p. 385; Sil.Fauna West Tennessee, 1860, p. 73, pi. 5, figs. la-e.?Lindstrom, Geol. Mag.,3, 1866, p. 411.?Safford, Geol. Tennessee, 1869, p. 321, pi. 5 (H), figs. 4a-e.?Lyon, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 43, footnote.?Foerste,Jour. Geol., 11, 1903, p. 712 (loc. occ).?Grabau and Shimer, N. A. IndexFossils, 1, 1906, p. 77, fig. 121. 158 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Calceola (Rhizophyllum) tennesscensis?Continued.Calceola Americana Safford, Amer. Jour. Sci. and Arts, 2d ser., 29, 1860, p. 248.Rhizophyllum tennesseense Lindstrom, Bihang till k. Sv. Vet.-Akad., 7,No. 4, 1882, p. 30, pi. 3, fig. 14; pi. 9, figs. 3-5.?Roemer, Leth. Geog., pt. 1,Leth. Pal., 1883, p. 408.Niagaran (Brownsport) : Decatur, Perry, Wayne, and Hardin Counties, Tennessee.Callicrinites D'Orbigny. See Callicrinus D'Orbigny.CALLICRINUS D'Orbigny. Genotype: C. costatus Hisinger.Callicrinites D'Orbigny, Prodr. Pal. Strat., 1, 1849, p. 45; Cour. Element. Pal.GeoL, 2, 1851, p. 141.?Chapman, Canadian Jour. , n. s., 2, 1857, p. 304.Callicrinus Pictet, Traite Pal., 2d ed., 4, 1857, p. 301.?Angelin, Icon. Crinoid.,1878, p. 14.?Zittel, Handb. Pal., 1, 1879, p. 378.?Wachsmuth and Springer,Proc. Acad. Nat. Sci. Philadelphia, 1885, p. 357. (Rev. Pal., pt. 3, sec. 1,p. 135.)?Ringueberg, Ann. New York Acad. Sci., 5, 1890, p. 302.?Miller,N. A. Geol. Pal., 1st App., 1892, p. 675; 18th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1893, p. 260.?Weller, Jour. Geol., 5, 1897, p. 744, footnote;Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 117, fig. 47.?Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 164, fig. 77. ? Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 149.?Zittel, Grund-zuge Pal., 1, 1910, p. 164.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 560.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 192.Cryptodiscus Hall, 20th Rep. New York State Cab. Nat. Hist., 1865, pi. 11, fig. 8;rev. ed., 1868, pi. 11 (2), fig. 18.?Weller, Jour. Geol., 5,1897, p. 744 (footnote pp.803-808).?Anon. (?Bather), Nat. Sci., 12, 1898, p. 154.?Weller, Bull. Chi-cago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 121.?Bather, Treatise onZool. (Lankester), pt. 3, 1900, p. 164.Callicrinus acanthinus Ringueberg.Callicrinus acanthinus Ringueberg, Ann. New York Acad. Sci., 5, 1890, p. 302,pi. 3, fig. 1.?Wachsmuth and Springer, Mem. Mus. Comp. Zool., 20, Harvard,1897, p. 356, pi. 83, fig. 18.Niagaran (Lockport-Gasport member): Lockport, New York.Callicrinus beachleri Wachsmuth and Springer.Callicrinus beachleri Wachsmuth and Springer, Amer. Geol., 10, 1892, p. 140;Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 355, pi. 83, fig. 14a, b.Niagaran (Laurel): St. Paul, Indiana.Callicrinus bifurcatus Weller.Callicrinus bifiircatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt.1, 1900, p. 125, pi. 8, fig. 7.Niagaran (Racine): Joliet, Illinois.Callicrinus bilobus (Weller).Cryptodiscus bilobus Weller, Jour. Geol., 5, 1897, p. 749, pi., fig. 8.CalUcrinus bilobus Weller, Jour. Geol., 5, 1897, p. 808; Bull. Chicago Acad. Sci.,Nat. Hist. Surv., 4, pt. 1, 1900, p. 125, pi. 10, fig. 4.Niagaran: (Racine): Joliet, Illinois.Callicrinus cornutus (Hall).Eucalyptocrinus cornutus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867,p. 322, pi. 11 (2), figs. 8-10; rev. ed., 1870, p. 363, pi. 11, figs. 8-10.?^\^lit-field, Geol. Wisconsin, 4, 1882, p. 285, pi. 16, figs. 5-8.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 191, fig. LIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 159Callicrinus cornutus?Continued.Eucalyptocrinua cornutus var. excavatua Hall, 20th Rep. New York State Cab.Nat. Hist, (extras 1865), 1867, p. 322, pi. 11 (2), figs. 6, 7; rev. ed. 1870, p.364, pi. 11, figs. 6-7.Callicrinus cornutus Wachsmuth and Springer, Mem. Mus. Comp. ZooL, Harvard,21, 1897, p. 357, pi. 83, figs. 15-17.?Anon. (Bather?), Nat. Sci., 12, 1898,p. 155.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, 1900, p. 118,pi. 8, figs. 1-3.Niagaran (Racine): Waukesha and Racine, Wisconsin; Bridgeport and Romeo,IlUnois.Callicrinus corrugatus (Weller).Miller, 18th Rep. Geol. Nat. Hist. Indiana, 1894, p. 260, pi. 1, fig.7, (adv. sheets, 1892, p. 6, pi. 1, fig. 7).Cryptodiscus corrugatus Weller, Jour. Geol., 5, 1897, p. 747, pi., figs. 1, 2; p. 808.Callicrinus corrugatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt.1, 1900, p. 123, pi. 11, figs. 6, 7.Niagaran (RacLne): Joliet, IllinoisCallicrinus desideratus W^eller.Callicrinus Weller, Jour. Geol., 5, 1897, pp. 805-806, figs. 2-4, 7-8.CalHcrinus desideratus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 1, 1900, p. 122, pi. 9, fig. 2; pi. 10, fig. 3; pi. 11, figs. 1-3.Niagaran (Racine): Racine, Wisconsin.Callicrinus digitatus (Weller).Cryptodiscus digitatus Weller, Jour. Geol., 5, 1897, p. 749, pi., figs. 0, 7, 5?; p.808.Callicrinus digitatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1,1900, p. 124, pi. 9, figs. 3, 4; pi. 11, fig. 5.Niagaran (Racine) : Lemont and Joliet, Illinois.Callicrinus hydei (Weller).Cryptodiscus hydei Weller, Jour. Geol., 5, 1897, p. 748, pi., figs. 3, 4.Callicrinus hydei Weller, Bull. Chicago Acad. Sci., Nat. Hist. Siu-v., 4, pt. 1,1900, p. 124, pi. 8, fig. 8; pi. 9, fig. 1; pi. 10, figs. 1, 2.Niagaran (Racine): Romeo and Joliet, Illinois; Racine, Wisconsin.Callicrinus longispinus Weller.Callicrinus longispinus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 1, 1900, p. 119, pi. 8, figs. 4, 5.?Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 560.Niagaran (Racine): Joliet, Illinois.Callicrinus pentangularis Weller.Callicrinus pentangularis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv.,4, pt. 1, 1900, p. 120, pi. 8, fig. 6.Niagaran (Racine): Bridgeport, Illinois.Callicrinus? ramifer (Roemer).Eucalyptocrinue ramifer Roemer, Sil. Fauna., West Tennessee, 1860, p. 51, pi.4, figs. 4a, 4b.Callicrinus? ramifer Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard.(N. A. Crin. Cam.), 20, 1897, p. 358.Niagaran (Brownsport) : Decatur and Wayne counties, Tennessee. 160 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CALLITHAMNOPSIS Whitfield. Genotype: Oldhamia fruticosa Hall.Callithamnopsis Whitfield, Bull. Amer. Mus. Nat. Hist., 6, 1894, pi. 354; Mem.Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 42.?Miller, N. A. Geol. Pal., 2dApp., 1897, p. 721.?Ruedemann, Bull. New York State Mus., 133, 1900,p. 201.Callithamnopsis delicatula Ruedemann.Callithamnopsis delicatula Ruedemann, Bull. New York State Mus., 133, 1909,p. 203, pi. 1, fig. 5; pi. 2, figs. 1, 2.Black River (Lowville): Glens Falls, New York.Callithamnopsis fruticosa WTiitfield.Oldhamia fruticosa Hall (part), Canadian Org. Rem., dec. 2, 1865, p. 50 (nameonly).Callithamnopsis fruticosa Whitfield, Bull. Amer. Mus. Nat. Hist., 6, 1894, p.354, pi. 11, figs. 4-8; Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 42, pi. 4,figg. 4-8.?Ruedemann, Bull. New York State Mus., 133, 1909, p. 202, figs.4-8,pl. l,figs. 3, 4.Black River (Platteville) : Platteville, Wisconsin.Callocystis (part) Haeckel. (See Callocystites Hall.CALLOCYSTITES Hall. Genotype: C. jewetti Hall.Callocystites Hall, Pal. New York, 2, 1852, pp. 238, 248.?Chapman, CanadianJour., n. s., 2, 1857, p. 303.?Pictet, Traite Pal., 2d ed., 4, 1857, p. 298.?Hall,Pal. New York, 3, 1861, p. 151.?Zittei, Handb. Pal., 1, 1879, p. 421.?Miller,N. A. Geol. Pal., p. 230.?^Jaekel, Stammesg. Pelmat., 1, Thecoidea u. Cys-toidea, 1899, p. 289.?Zittel-Eastman Textb. Pal., 1, 1900, p. 187.?Grabau,Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 151; Bull. New York State Mua., 45,1901, p. 151.?Schuchert, Sm'tha. Misc. Coll., 47, 1904, p. 242.?Zittei,Grundzuge Pal., 1, 1910, p. 188.?Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 409.Callocystia Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 131. ? Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 62, fig. 31.Anthocystis Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 132, pi. 3,figs. 23, 24.?Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 62.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 153.(Genotype: Anthocystis halliana Haeckel= Callocystites jewetti Hall).Callocystites canadensis (Billings).Apiocyslites Canadensis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, p. 90.Callocystites canadensis Schuchert, Smiths. Misc. Coll., 47, 1904, p. 245, pi. 34,fig. 3.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 470, fig. 1780.Callocystites tripectinatus Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p.12, pi. 1, fig. 10.Clinton (Rochester): Grimsby, Ontario; Lockport, New York.Callocystites jewetti Hall.CaUocystites jewettii IlaU, Pal. New York, 2, 1852, p. 239, pi . 50, figa. 1-11, 12-18.?Pictet, Trait6 Pal., 2d ed., 1857, 4, p. 298, pi. 99, fig. 15.?Miller, N. A. Geol.Pal., 1889, p. 230, fig. 260.?Jaekel, Stammesg. Pelmat., 1, Thecoidea u.Cystoidea, 1899, p. 290, fig. 64, p. 291, pi. 15, figs. 1, la-c?Grabau, Bull.Buffalo Soc. Nat. Sci., 7, 1901, p. 151, fig. 47; Bull. New York State Mus., 45,1901, p. 151, fig. 47.?Schuchert, Smiths. Misc. Coll., 47, 1904, p. 243, fig. 35,pi. 34, figs. 1, 2.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 469,fig. 1779. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 161Callocystites Jewettl?Continued.Callocystia Jewetti Zittel, Ilandb. Pal., 1, Munich, 1879, p. 410, fig. 290; p. 421,fig. 297.?Haeckel, Amphorideen u. Cystoideen, 1896, p. 131, pi. 3, figa. 21,22.?Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 62,fig. 31.Anthocystis Halliana Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p.132, pi. 3, figs. 23, 24.Clinton (Rochester): Lockjiort, New York, and vicinity; Grimsby, Ontario.Callocystites tripectinatus Ringueberg. See Callocystites canadensis.CALLOGRAPTUS Hall. Genotype: C. elegans Hall.Callograptus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 133; 20th Rep. New YorkState Cab. Nat. Hist., 1868, p. 218; rev. ed., 1870, p. 252.?Nicholson, Mon.Brit. Graptolit., 1872, p. 128.?Hopkinson, Ann. Mag. Nat. Hist., 4th ser.,10, 1872, p. 233.?Zittel, Handb. Pal., 1, Munich, 1879, p. 289.?Spencer,Amer. Nat., 8, 1882, pp. 458-462, p. 165; B\ill. Mus. Univ. State Missouri, 1,1884, p. 20; Trans. Acad. Sci. St. Louis, 4, 1884, pp. 562, 570.?Miller, N. A.Geol. Pal., 1889, p. 175.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p.179.?Matthew, Trans. New York Acad. Sci., 14, 1895, p. 271, pi. 48, fig. 5.?Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 576.?Raedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 583, 584; Mem.11, pt. 2, 1908, p. 146.Callograptus compactiis (Walcott).Dendrograptus compactus Walcott, Trans. Albany Inst., 10, 1883, p. 21, pi. 1,fig. 1 (adv. sheets, 1879).?Gurley, Jour. Geol., 4, 1896, p. 94.Callograptus compactus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,p. 146, fig. 52, pi. 1, fig. 1.Utica: Holland Patent, Oneida County, New York.Callograptus diflFusus (Hall).Dendrograptus? (Callograptus?) diffusua Hall, Canadian Org. Rem., dec. 2, 1865,p. 132, pi. 18, figa. 1-3; 20th Rep. New York State Cab. Nat. Hist., 1868, pi. 4,fig. 12; rev. ed., 1870, p. 224, pi. 4, fig. 12.Dendrograptus? diffusua Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875,p. 664, pi. 36, figs. 7a, 7b.Callograptus diffusua Ruedemann, Ann. Rep. New York State Pal., 1902, p. 570.Callograptus cf. diffusua Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,pp. 586-587, fig. 20, pi. 4, fig. 7.Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Deepkill,Rensselaer County, New York (Deepkill).Ordovician (Lower Arenig): Ramsey Island, Wales.Callograptus elegans Hall.Callograptus elegans Hall, Geol. Surv. Canada, dec. 2, 1865, p. 134, pi. 19, figs.1-4; pi. 18, fig. 4; 20th Rep. New York State Cab. Nat. Hist., 1868, pi. 4, fig.15; rev. ed., 1870, p. 224, pi. 4, fig. 15.?Hopkinson, Quart. Jour. Geol. Soc.London, 31, 1875, p. 666, pi. 36, fig. 9.?Roemer and Freeh, Leth. geog., 1Theil, Leth. Pal., 1, 3 Lief, 1897, p. 577.Canadian (Levis, Didymograptuszone): GrosMaule, Quebec; Newfoundland.Ordovician (Lower Arenig): Wales.Callograptus prabaui Hahn. See Dictyonema furcifemm.Callograptus granti Spencer. See Odontocaulis granti.84243??Bull. 92?15 11 162 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Callograptus minutus Spencer.Callograptus minutus Spencer, Canadian Nat., 10, 1882, p. 165, nom. nud; Trans.Acad. Sci. St. Louis, 4, 1884, p. 572, pi. 1, fig. 12; BulL Mus. Univ. StateMissouri, 1, 1884, pp. 14, 22, pL 1, fig. 12.?Gurley, Jour. Geol., 4, 1896, pp.93, 308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 14, 15, fig. 13.Niagarau dolomite: Hamilton, Ontario.Callograptus minutus altus Gurley.Callograptus minutus altus (Gurley MS.), Baasler, Bull. U. S. Nat. Mus., 65, 1909,p. 15, fig. 16.Niagara dolomite: Hamilton, Ontario.Callograptus multicaulis Spencer.Callograptus (Dendrograptus) multicaulis Spencer, Canadian, 10, 1882, p. 165,nom. nud.Callograptus multicaulis Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 572,pi. 1, fig. 11; Bull. Mus. Univ. State Missouri, 1, 1884, p. 22, pi. 1, fig. 11.?Gurley, Jour. Geol., 4, 1896, pp. 93, 308.?Bassler, Bull. U. S. Nat. Mus., 65,1909, p. 13, fig. 14.Niagaran dolomite: Hamilton, Ontario.Callograptus niagarensls Spencer.Callograptus Niagarensis Spencer, Canadian Nat., n. s., 8, 1878, p. 463; Trans.Acad. Sci. St. Louis, 4, 1884, p. 571, pi. 1, fig. 9; Bull. Mus. Univ. State Mis-souri, 1, 1884, p. 21, pi. 1, fig. 9.?Miller, N. A. Geol. Pal., 1889, p. 175, fig.144.?Gurley, Jour. Geo!., 4, 1896, pp. 93, 308.?Bassler, Bull. U. S. Mus., 65,1909, pp. 13, 14, fig. 15.Niagaran dolomite: Hamilton, Ontario.Callograptus salteri Hall.Callograptus salteri Hall, Canadian Org. Rem., dec. 2, Geol. Siurv. Canada, 1865,p. 135, pi. 19, figs. 5-8; 20tli Rep. New York State Cab. Nat. Hist., 1868, pi. 4,figs. 13, 14; rev. ed., 1870, p. 224, pi. 4, figs. 13, 14.?Hopkinson and Lapworth,Quart. Joui-. Geol. Soc. London, 31, 1875, p. 667, pi. 36, fig. 10.?Gurley,Jour. Geol., 4, 1896, p. 300.?Roemer and Freeh, Leth. pal., 1, 1897, p. 577,fig. 146.?Ruedemann, Ann. Rep. New York State Pal., 1902, pp. 554, 555,565.?Cleland, Bull. Amer. Pal., 4, 1903, p. 20, pi. 4, fig. 4.?Ruedemann,Mem. New York State Mus., 7, pt. 1, 1904, pp. 584-586, figs. 18, 19, pi. 3,figs. 13-15.Canadian: Point Levis, Quebec (Levis, Didymograptus, and Diplograptus den-tatus zones); Deepkill, Rensselaer County, New York (Deepkill); Tribes Hilland Fort Hunter, New York.Ordovician (Middle Arenig): St. Davids, Wales.Callograptus strictus Gurley.Callograptus strictus (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 15,fig. 17; pi. 3, fig. 3.Niagaran dolomite: Hamilton, Ontario.CALLONEMA Hall. Genotype: Loxonema bellatula Hall.Callonema Hall, Pal. New York, 5, pt. 2, 1879, p. 50.?Pilsbry, Zittel-EastmanTextb. Pal., 1, 1900, p. 458.Callonema pristina Savage,Callonema pristina Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 117, pi. 7,fig. 20.Upper Medinan (Channabon): Near Channahon, Will County, Illinois. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 163Callopora Dybowski. See Diplotrypa Nicholson.Callopora Hall. See Hallopora Bassler.Callopora aspera Hall. See Lioclema asperum.Callopora?? cervicornis Hall.Callopora cervicornia Hall, Trans. Albany Institute, 10, 1883, p. 59 (abstract,1879, p. 3); 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 238.Niagaran (Waldron): Waldron, Indiana.Observation.?Can not be recognized without a restudy of the tj'pes.Callopora crenulata Ulrich. See Halloporina crenulata.Callopora?? diversa Hall.Callopora? diversa Hall, Trans. Albany Institute, 10, 1883, p. 60 (abstract, 1879,p. 4); 11th Ann. Rep. Indiana Geol. Nat. Hist, 1882, p. 239.Niagaran (Waldron): Waldron, Indiana.Observation.?Can not be recognized without a restudy of the types.Callopora exsul Hall. See Lioclema? exsul.Callopora Florida Hall. See Nicholsonella florida.Callopora laminata Hall. See Fistulipora laminata.Callopora milfordensis James. See Ceramoporella granulosa milfordensis.Callopora nana Nicholson. See Hallopora elegantula.Callopora nummiformis Hall. See Mesotrypa nununiformis.Callopora ohioensis Foerste. See Lioclemella ohioensis.Callopora ramosa var. rugosa of authors. See Hallopora rugosa.Callopora sigillarioides Nickles. See Hallopora onealli sigillarioides.Callopora singularis Hall. See Trematopora? singularis.CALLOPORELLA Ulrich. Genotype: Calloporella harrisi Ulrich=Monticulipora(Heterotrypa) circularis James.Calloporella Uhich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 154.?Miller, N.A. Geol. Pal., 1889, p. 296.?Ubich, Geol. Surv. Illinois, 8, 1890, pp. 373,418.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1907, p. 36.?Cmnings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 742.Calloporella circularis (James).Monticulipora (Heterotrypa), circularis James, Paleontologist, No. 6, 1882, p. 46.Monticulipora circularis James, Paleontologist, No. 7, 1883, p. 58, pi. 1, figs. 3, 3a.Calloporella harrisi Uhich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 91, pi. 1,figs. 5, 5c.MonticuUpora lens (not Nebulipora lens McCoy) James and James, Jour. Cincin-nati Soc. Nat. Hist., 10, 1888, p. 165.?J. F. Jameo, ibid., 16, 1894, p. 181.Calloporella circularis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 193.~Ba88ler, Proc. U. S. Nat. Mus., 1906, p. 25.~Cumings, 32d AnB.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 797, pi. 10, figs. 6, 6c.Richmond (Waynesville): Oxford, Waynesville, etc., Ohio; Indiana.Plesiotype.?Csit. No. 40386, U.S.N.M. (Holotype of C. harrisi).Calloporella harrisi Ulrich. See Calloporella circularis.Calloporella? lens (Wliitfield).Fistulipora lens Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878, p. 69;Geol. Surv. Wisconsin, 4, 1882, p. 256, pi. 11, figs. 5, 6.?Buell, Trans. Wis-consin Acad. Sci., 5, 1882, p. 188.?Chamberlin, Geol. Wisconsin, 1, 1883,p. 173, fig. 164 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Calloporella? lens?Continued.Calloporella? lens Nicklea and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 194(gen. ref.).Richmond (Maquoketa): Delafield, Wisconsin,Calloporella? nodulosa Ulrich.Calloporella? nodulosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 418, pi. 33, figs.4, 4a.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 194.Monticulipora verrucosa J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895,p. 85.Richmond (Maquoketa): Savannah, Illinois.Calloporella? nummiformis Ulrich. See Mesotrypa nummiformis.Calloforina Ulrich and Bassler. See Halloporina Bassler.Calophyllxjm phragmoceras Salter. See Amplexus phragmoceras.CALOSTTLIS Lindstrom. Genotype: C. denticulata Kjerulf.Calostylis Lindstrom, Ofver K. Vet.-Akad. Forhandl., 25, 1868, p. 421.?Nichol-son and Etheridge, Mon. Sil. Foss. Girvan Dist., 1878, p. 63.?Zittel, Handb.Pal., 1, 1879, p. 241.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 393.?Freeh, Palseontographica, 37, 1890, p. 43.?Koken, Die Leitfossilien, 1896,p. 307.Calostylis spongiosa Foerste.Calostylis spongiosa Foerste, Bull. Geol. Surv. Kentucky, 7, 1906, p. 322, pi. 7,figs. 3a-g; pi. 8, figs, la, b.Clinton (Waco): Near Estill Springs, etc., Kentucky.CALVINELLA Walcott. Genotype: Dikelocephalus spiniger Hall.Calvinella Walcott, Smiths. Misc. Coll., 57, 1914, p. 388.Calvlnella newtonensis (Weller).Dikelocephalus newtonensis Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p.121, pi. 3, figs. 1-7.Calvinella newtonensis Walcott, Smiths. Misc. Coll., 57, 1914, p. 389, pi. 70,figs. 7-11, 11aUpper Cambrian or Ozarkian (Kittatinny): Near Newton, New Jersey.CaMnella ozarkensis Walcott.Calvinella ozarkensis Walcott, Smiths. Misc. Coll., 57, 1914, p. 389, pi. 70, figs. 1-6.Ozarkian (Eminence): Near Eminence, Shannon County, and near Flat River,St. Francois County, Missouri.CaMnella tenulsculpta Walcott.Calvinella tenuisculpta Walcott, Smiths. Misc. Coll., 57, 1914, p. 391, pi. 64,figs. 7, 7a.Pogonip (?Ozarkian): Ridge east of Hamburg Ridge, Eureka District, Nevada.CALVINIA Savage. Genotype: C. edgewoodensis Savage.Calvinia Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 65.Calvinia edgewoodensis Savage.Calvinia edgewoodensis Savage, Bull. Geol. Surv. IIlinoLs, 23, 1913, p. 66, pi. 2,figs. 15-17.Upper Medinan (Edgewood): Near Gale, Alexander County, Illinois. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 165CALTTVIENE Brongniart. Genotype: Trilobus tuberculatus Bronn.Calymene Brongniart, Hist. Nat. CVust. Foss., 1822, p. 11.?Dekay, AnnalsLyceum Nat. Hist. New York, 1, 1824, p. 175, footnote.?Eichwald, Zool.Specialis, pt. 2, Vilnae, 1830, p. 114.?Green, Mon. Tril. N. A., 1832, pp.15, 27.?Eaton, Geol. Textbook, 2d ed., 1832, p. 31.?Steinlnger, Mem. See.Geol. France, 1, 1834, p. 350.?Murchison, Sil. Syst., 1839, p. 653.?Conrad,5th Ann. Rep. New York Geol. Surv. 1841, p. 38.?Biirmeister, Org. derTril., 1843, p. 93.?Goldfuss, Neues Jalirb. f. Min., etc., 1843, pp. 541, 558.?Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5 (extract), 1847,p. 85, pi. 5, fig. 50.?Ilouault, Bull. Soc. Geol. France, 2d. ser., 4, 1847, p.318.?Salter, Mem. Geol. Surv. Great Britain, 2, pt. 1, 1848, p. 341.?McCoy,Ann. Mag. Nat. Hist., 2d. ser., 4, 1849, p. 399.?Salter, Mem. Geol. Surv.United Kingdom, dec. 2, 1849, pi. 8.?Barrande, Neues Jahrb. f. Min., etc.,1850, p. 778; Syst. Sil. Centre Boheme, 1, 1852, p. 560.?McCoy, British Pal.Rocks and Fossils, 1854, p. 164.?Pictet, Traite Pal., 2d ed., 2, 1854, p. 503.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 213.?Chapman, Canadian Jour.,n. s., 1, 1856, p. 285.?Nieszkowski, Archivfur Naturk. Liv-, Ehst-und Kurl.,50, 1857, p. 540.?Chapman, Canadian Jour., n. s., 8, 1863, p. 31; Expos.Min. Geol. Canada, 1864, p. 139.?Salter, Mon. British Tril., Pal. Soc, 1865, p.90; Cat. Camb. and Sil. Foss., 1873, pp. 52, 132.?Miller, Cincinnati Quart.Jour. Sci., 1, 1874, pp. 139, 140.?Zlttel, Handb. Pal., 2, 1885, p. 604.?Clarke, Jour. Morpholog>', 2, 1888, p. 254.?Hall and Clarke, Pal. NewYork,7, 1888, p. xxi, fig. 22.?Miller, N. A. Geol. Pal., 1889, p. 536.?W. D. Mat-thew, Trans. New York Acad. Sci., 12, 1893, p. 238.?Schmidt, Mem. I'Acad.Imp. Sci. St. Petersburg, 7th, ser., 42, 1894, pp. 7, 11.?Walcott, Geol. Mag.,dec. 4, 1, 1894, p. 247.?Koken, Die Leitfossilien, Leipzig, 1896, p. 23, fig.14. 1-3.?Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 105, pi. 3, fig. 26.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 48.?Grabau,Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 224; Bull. New York State Mus.,45, 1901, p. 224.?Jaekel, Zeitz. d. d. geol. Gesell., 53, 1901, pp. 149, 156.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 314.?Slocom, FieldMus. Nat. Hist., Geol. Ser., 4, 1913, p. 66.?Raymond, ZIttel-EastmanTextb. Pal., 1913, p. 724.Calymmene Angelin, Pal. Scandina\'ica, 3d ed., Holmise, 1878, pp. 22, 28. ? Pompeckj, Neues Jahrb. f. Min., Geol., Pal., 1, 1898, pp. 187, 196, 217.?Beecher, Zittel-Eastman Textb. Pal., 1, 1900, p. 634; Amer. Jom-. Sci., 4thser., 13, 1902, p. 167.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 1051.Calymene abbreviata Foerste.Calymene abbreviata Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 83, pi.3, fig. 17; Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 148.Trenton (Cynthiana): One mile south of Rogers Gap, Kentucky.Calymene altirostris Van Ingen.Calymene altirostris Van Ingen, School of Mines Quart., 23, 1901, p. 35 (nom. nud.)Niagaran (St. Clair): St. Clair Spring, Independence County, Arkansas.Calymene beckii Hall. See Triarthrus becki.Calymene blumenbachh Foerste. See Calymene vogdesi.Calymene blumenbachh Roemer. See Calymene niagarensis.Calymene BLUMENBAcnn Green. See Calymene eenaria. 166 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Calymene blumenbachu var. niagarensis Hall. See Calymene niagarensis.Calymene BLXJMENBACHn var. SENARiA? Hall. See Calymene clintoni and C.senaria.Calymene BLUMENBACnn var. vogdesi Foerste. See Calymene vogdesi.Calymene bucklandh Anthony. See Ceraurus milleranns.Calymene callicephala Cumings. See Calymene meeki.Calymene callicephala Green.Calymene callicephala Green, Mon. Tril. N. A., 1832, p. 30, cast 2.?Clarke,Geol. Minnesota, 3, pt. 2, 1894, p. 699, fig. 2.?Foerste, Bull. Sci. Lab. DenisonUniv., 14, 1910, p. 83.?Ruedemann, Pal. Univ., 4th ser., fasc. 1, 1912, p. 233.Ordovician(?): Hampshire, Virginia (=nampshire County, West Virginia).Observation.?Of the numerous references to this species, the above only referdirectly to Green's types, which are lost. Green's cast of the type can not beidentified with any of the species of Calymene and the name might as well beabandoned . Calymene callicephala granulosa Foerste. See Calymene granulosa.Calymene camerata Conrad.Calymene camerata Conrad, Jour. Acad. Nat. Sci. Philadelphia, 1st ser., 8, 1842, "p. 278.?Hall, Pal. New York, 2, 1852, p. 337, pi. 78, figs, la-lf.?Weller,Geol. Surv. New Jersey, Pal., 3, 1903, p. 250, pi. 22, figs. 22-25.?Maynard,Maryland Geol. Surv., Low. Dev., 1913, p. 494, pi. 89, fig. 9.Cayugan (Cobleskill) : Schoharie, New York.Helderbergian: ("ash Valley, DeAils Backbone, Maryland; Keyser, West Vir-ginia (Keyser); Nearpass Quarry, New Jersey (Decker Feny).Calymene christyi Hall. See Synhomalonotus ciiristyi,Calymene clintoni (Vanuxem).Hemicrypturus clintonii Vanuxem, Geol. New York, pt. 3, 1842, p. 79, fig. 2.Hemicrypturus tail Hall, Geol. New York, pt. 4, 1843, p. 77, tab. org. rem., 9,fig. 2.Calymene blumenbachii? var. senaria Hall, Pal. New York, 2, 1852, p. 299, pi.A 66, figs. 6a-6e.Calymene cUntoni Hall, Pal. New York, 2, 1852, p.298, pi. A 66, figs. 5a^d.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 823, fig. 637.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1889, p. 109, figs.?Foerste, Cincinnati Soc,Nat. Hist., Jour. 21, 1909, p. 33, pi. 1, fig. 6.Clinton: Herkimer and Cayuga Counties, New York; Kentucky, etc.Calymene clintoni Vogdes. See Calymene vogdesi.Calymene conradi Emmons. Not recognized.Calymene conradi Emmons, Amer. Geol., 1, pt. 2, 1855, p. 236.?Foerste, Bull.Sci. Lab. Denison Univ., 17, 1914, p. 320.Lorraine shales: New York.Observation.?Probably refers to the species or variety of Calymene occurringat this horizon.Calymene ceassimarginatus Hall. See Proetus crassimarginatus. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 167Calymene diops Green.Calymene diops Green, Mon. Tril. N. A., 1832, p. 37, cast No. 8, fig. 2.Ordo\ician?: Horizon and locality unknown.Observation.?Mot recognized. Possibly a Phacops.Calymene dubia Savage.Calymene dubia Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 60, pi. 2, figs. 8, 9.Upper Medinan (Girardeau) : Alexander County, Illinois.Calymene fayettensls Slocom.Calymene fayettensis Slocom, Field Mus. Nat. ITist., Geol. Ser., 4, No. 3, 1913,p. 67, pi. 16, figs. 8, 9.Richmond (Maquoketa): Clermont, Elgin, and Bloomfield, Iowa.Calymene gracilis Slocom.Calymene gracilis Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, No. 3, 1913, p. 69,pi. 18, fig. 9.Richmond (Maquoketa) : Pattersons Springs, near Brainard, Iowa.Calymene granulosa (Foerste).Calymene callicephala granulosa Foerste, Bull. Sci. Lab. Denison Univ., 14,1909, p. 294.Eden: Cincinnati, Ohio, and vicinity; New York (Indian Ladder).Calymene macrophthalma D'Orbigny.Calymene macrophthalma D'Orbigny, Voyage I'Amerique Merid., 3, pt. 4, 1847,p. 32, 8, Atlas, pi. 1, figs. 6, 7.Silurian: Rio Grande, Bolivia.Calymene mammillata Hall.Calymene mammillata Hall, Geol. Surv. Wisconsin, 1861, p. 50; Geol. Wiscon-sin, 1, 1862, p. 432, figs. 1, 2.Richmond (Maquoketa) : Maquoketa Creek, twelve miles west of Dubuque, Iowa.Calymene meeki Foerste.Calymene senariaMeek, Geol. Surv. Ohio, Pal., 1, 1873, p. 173, pi. 14, figs. 14a-f. ? Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 140.?White, 2d Ann. Rep.Indiana Dep. Stat. Geol., 1880, p. 493, pi. 2, figs. 1, 2.Calymene callicephala Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 1057, pi. 54, figs. 6-6c.?Bassler, Bull. Geol. Sui-v. Virginia, 2a,1909, pi. 14, figs. 16, 17.Calymene meeki Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 84, pi. 3,fig. 18.?Raymond, Zittel-Eastman Textb. Pal. 1913, p. 724.Maysville and Richmond: Cincinnati, Ohio, and vicinity; Kentucky; Indiana;Tennessee; etc.Calymene meeki retrorsa Foerste.Calymene meeki-retrorsa Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 85,pi. 3, fig. 19.Richmond (Waynesville): Near Dunlapsville, Indiana.Calymene microps Green. See Pterygometopus microps.Calymene multicosta Hall.Calymene multicosta Hall, Pal. New York, 1, 1847, p. 228, pi. 69, fig. 3; 12thRep. New York State Cab. Nat. Hist., 1859, p. 67.?Brainerd and Seely, Bull.Amer. Mus. Nat. Hist., 1890, 3, p. 22. 168 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Calymene multicosta?Continued. "Birdseye": He la Motte, Lake Champlain, Vermont.Observation.?Not recognized. Possibly the same aa Pliomerops canadensis,but original is too poorly preserved to decide.Calymene nasuta Ulrich. See Caiymenella nasuta.Calymene niagarensis Hall.Calymene niagarensis Hall, Geol. New York, pt. 4, 1843, p. 102, fig. 3, p. 101,tab. org. rem., 10, fig. 3.?Owen, Amer. Jour. Sci. Arts, 48, 1845, p. 309, fig.3.?Hall, Canadian Nat. Geol., 5, 1860, p. 156; Trans. Albany Inst., 4, 1863,p. 227; adv. sheets 18th Rep. New York State Cab. Nat. Hist., 1865, p. 30;20th Rep., rev. ed., 1870, p. 425.?Hall and \^'Tiitfield, Pal. Ohio, 2, 1875, p.153, pi. 6, figs. 14, 15.?Hall, 2Slh Rep. New York State Mus. Nat. Hist., doc.ed., 1877, pi. 32, figs. 8-15; mus. ed., 1879, p. 187, pi. 32, figs. 8-15; 11thRep. Dep. Geol. Nat. Hist. Indiana, 1882, p. 331, pi. 34, figs. 8-15.?Cham-berlin, Geol. Wisconsin, 1, 1883, p. 195, fig.?Hall and Clarke, Pal. NewYork, 7, 1888, pi. 1, figs. 10-14.?Lesley, Geol. Surv. Pennsylvania, Rep.P4, 1889, p. 109, fig.?Keyes, Geol. Surv. Missouri, 4, 1894, pi. 32, fig. 5.?VanIngen, School of Mines Quart., 23, 1901, p. 35.?Clarke and Ruedemann,Mem. New York State Mus., 5, 1903 (p. 2), p. 107, pi. 21, fig. 12.?^Miiteaves,Geol. Surv. Canada, Ann. Rep., n. s., 14, 1904, App. F, p. 57; Geol. Surv.Canada, Pal. Foss., 3, pt. 4, 1906, p. 269.?Rowley, Green's Contr. IndianaPal., 2, pt. 2, 1906, p. 27, pi. 5, fig. 26.?Weller, Bull. Chicago Acad. Sci.,Nat. Hist. Surv., 4, 1907, p. 261, pi. 23, figs. 9, 10.?Foerste, Jour. CincinnatiSoc. Nat. Hist., 21, 1909, p. 34.?Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 315, fig. 1628.Calymene Blumenbachii Chapman, Canadian Jour., n. s., 8, 1863, p. 31, fig. 147;p. 206, fig. 209.?Roemer, Sil. Fauna West Tennessee, 1860, p. 79, pi. 5, fig.22.?Billings, Cat. Sil. Foss. Anticosti, Acad. Geol., 2d ed., 1868, p. 607.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 109, fig.?"^Tiiteaves,Geol. Surv. Canada, Pal. Foss., 3, pt. 2, 1895, p. 106.Calymene blumenbachii var. niagarensis Hall, Pal. New York, 2, 1852, p. 307,pi. 67, figs. 11-12 (see for earlier synonymy); Geol. Surv. Wisconsin, 1, 1862,p. 432; 20th Rep. New York State Cab. Nat. Hist., 1867, p. 334.?Grabau,Bull. New York State Mus., 45, 1901, p. 224, fig. 156.Calymene sp. Hall, Pal. New York, 2, 1852, p. 350, pi. 83, fig. 8.Brassfield-Cayugan: Lockport, Rochester, etc.. New York. Wide distribution inthe United States and Canada, especially in the Niagaran.Calymene phlyctainoides Green. See Corydocephalus phlyctainoides.Calymene platycephala Foerste.Calymene platycephala Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 81,pi. 2, fig. 7; pi. 3, fig. 21.Trenton (Saltillo): Clifton, Tennessee.Calymene rostrata Vogdes. See Calymenella rostrata.Calymene rugosa Shumard.Calymene rugosa Shumard, 1st and 2d Reps. Geol. Missouri, 1855, p. 200, pi.B, fig. 14.?Keyes, Missouri Geol. Surv., 4, 1895, p. 233.Helderbergian(?): One mile below Birmingham, Missouri.Calymene selenecephala Green. See Calymene senaria.Calymene senarla. Meek. See Calymene meeki. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 169Calymene senarla Comad.Calynaene blumeubachil Green, Mon. Tril. N. A., 1832, p. 28, cast 1.Calymene selenecephala Green, Mon. Tril. N. A., 1832, p. 31, cast 3.?Edwards,Hist. Nat. Crust., 3, 1840, p. 320.Calymene senaria Conrad, 5th Ann. Rep. Geol. Surv. New York, 1841, pp. 38, 49. ? Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 390, fig. 2.?Vanuxem, ibid.,3, 1842, pp. 48, 55.?Owen (Emmons), Amer. Jour. Sci., 47, 1844, pp. 363,364, fig. 2.?Hall, Pal., New York, 1, 1847, p. 238, pi. 64, figs. 3a-n.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 213, pi. 15, fig. 16; p. 216, fig. 9.?Billings,Canadian Nat. Geol., 1, 1856, p. 46, fig. 10.?Emmons, Man. Geol., 1860, p.98, fig. 87.?Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 3,fig. 8.?Hitchcock, Geol. Vermont, 1, 1861, p. 300, fig. 213.?Salter, Mon.Brit. Tril., Pal. Soc, 1865, p. 97, pi. 9, figs. 5-11.?Billings, Quart. Jour. Geol.Soc. London, 26, 1870, p. 485, pi. 32, figs. 3-5.?Walcott, 28th Rep. New YorkState Mus. Nat. Hist., doc. ed., 1877, pp. 89-91; Mus. ed., 1879, pp. 89-91.?Etherldge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 591.?Emerson,Narrative Hall's 2d Arctic Exped., U. S. Navy Dep., 1879, p. 582 (loc. occ.).?Walcott 31st Rep. New York State Mus. Nat. Hist., 1879, p. 61, pi. 1, figs.1, 2, 5; Bull. Mus. Comp. Zool., 8, 1881, pp. 198-216, pi. 1, figs. 6-10; pi. 2,figs. 5, 7, 10; pi. 3, figs. 1, 3, 8-10; pi. 4, fig. 3; pi. 5, figs. 1-0; pi. 6, figs. 1, 2.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 160, fig.?Walcott, Science, 3, 1884,pp. 279, 281, figs. 2, 3; Notes on some sections of Tril., 1887, pi. 1.?Clarke,Jour. Morph., 2, 1888, p. 254, footnote; p. 2G8, footnote.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 110, figs.?Clarke, Geol. Minnesota, 3, pt. 2,1894, p. 700, fig. 3.?Keyes, Geol. Surv. Missouri, 4, 1894, p. 230.?Bernard,Quart. Joui-. Geol. Soc. London, 1894, 50, p. 427, figs. 13, 15.?Walcott, GeoLMag., dec. 4, 1, 1894, p. 247, pi. 8, figs. 7-10; Proc. Biol. Soc. Washington, 9,1894, p. 90, pi. 1, figs. 7-10.?^Vhiteaves, Pal. Foss., Geol. Siu-v. Canada, 3, pt.3, 1897, p. 231.?Pompeckj, N. Jahrb. Min., 1, 1898, pp. 197, 198 (footnote),244, 246.?Ruedemann. Bull. New York State Mus., 49, 1901, p. 67.?Beecher,Amer. Jour. Sci., 4th ser., 13, 1902, pi. 5, fig. 7.?Beecher, Geol. Mag., dec. 4,9, 1902, p. 158, fig. 4.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 203,pi. 15, fig. 23.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 315, fig.1624c, d.?Foerste, Bull. Sci. Lab. Denison Univ., 14, 1910, p. 82, pi. 2, fig.14.?Ruedemann, Bull. New York State Mus., 162, 1912, p. 120, pi. 9, figs. 6-10,CaljTnene blumenbachii var. senaria Hall, Pal. New York, 2, 1852, p. 299, pi.66a, figs. 6a-e.Trenton: New York, New Jersey, Oliio, Minnesota, etc.Plastotypes.?Cat. Nos. 4916, 5004, U.S.N.M.Calymene spinifera Conrad. See Cyphaspis girardeauensia,Calymene? trisulcata Hall. See Phacops trisulcatus.Calymene verneuUil D'Orbigny.Calymene Verneuilii D'Orbigny, Voyage I'Amerique Merid., 3, pt. 4, 1847, p. 31,8, Atlas, pl. 1, figs. 4, 5.Silurian: Chuquisaca, Bolivia.Calymene vogdesi Foerste.Calymene clintoni Vogdes (not Vanuxem) Proc. Acad. Nat. Sci. Philadelphia,1880, p. 178, figs. 3, 4; Pal. Cont., 1, 1881, p. 9, figs. 3-7; Desc. New Crust.Clint, of Georgia, etc., 1886, p. 6, figs. 3-4.Calymene blumenbachii? Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 110,pl. 13, fig. 25. 170 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Calymene vogdesl?Continued.Calymene blmnenbachii var. vogdesi Foerste, Proc. Bost. Soc. Nat. Hist., 1890,24, p. 265.Calymene blumenbachii (or senaria) Lincklaen, 14th Rep. New York State Cab.Nat. Hi8t., 1861, p. 55, pi. 8, fig. 1.Calymene Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 109, pi. 13,fig. 24.Calymene vogdesi Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 95, pi. 8,figs. 12-16; Geol. Surv. Ohio, 7, 1895, p. 526, pi. 25, figs. 24-25; pi. 27, figs.12-16.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 315.Upper Medinan (Brassfield): Catoosa Station, etc., Georgia; Centerville, Dayton,etc., Ohio; Indiana.CALTMENELLA Bergeron. Genotype: C. boisseli Bergeron.Calymenella Bergeron, Bull. Soc. Geol. France, 3d ser., 18, 1890, p. 367.Calymenella nasiita (Ulrich).Calymene nasuta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 131, figs. 1-3,p. 132.Calymenella nasuta Pompeckj, Neues Jahrb. Min., Geol. Pal., 1, 1898, p. 243.Clinton (Osgood): Osgood, Indiana.Cotype.?0,0,1. No. 41871, U.S.N.M.Calymenella rostrata (Vogdes).Calymene rostrata Vodges, Amer. Jour. Sci., 3d ser., 18, 1879, p. 477; Proc. Acad,Nat. Sci. Philadelphia, 1880, p. 176, figs. 1-2; Pal. Cont., 1, 1881, p. 8, pi.,figs. 1, 2; Desc. New Crust. Clint, of Georgia, etc., 1886, p. 2, 4, figs. 1-2.?Foerste, Proc. Bost. Soc. Nat. Hist., 24, 1890, p. 267.?Grabau and Shimer,N. A. Index FossUs, 2, 1910, p. 315.Calymenella rostrata Pompeckj, Neues Jahrb. Min., Geol. Pal., 1, 1898, p. 243.Clinton: Catoosa Station, Georgia; New York.CALYPTOGRAPTUS Spencer. Genotype: C. cyathiformis Spencer.Calyptograptus Spencer, Canadian Nat., n. s., 8, 1878, p. 459.?Lapworth, Quart.Jour. Geol. Soc. London, 37, 1881, p. 173.?Spencer, Proc. Amer. Assoc. Adv.Sci., 31, 1883, p. 364; Bull. Mus. Univ. State Missouri, 1, 1884, p. 27; Trans.Acad. Sci. St. Louis, 4, 1884, p. 562, 577.?Miller, N. A. Geol. Pal., 1889, p.175.?Gurley, Jour. Geol., 4, 1896, pp. 93, 308.Calyptograptus? arbusculits Spencer. See Dictyonema arbuscula.Calyptograptus cyathiformis Spencer.Calyptograptus cyathiformis Spencer, Canadian Nat., n. s., 8, 1878, p. 459; Trans.Acad. Sci. St. Louis, 4, 1884, p. 578, pi. 3, fig. 3; Bull. Mus. Univ. StateMissouri, 1, 1884, p. 28, pi. 3, fig. 3.?Miller, N. A. Geol. Pal., 1889, p. 175,fig. 145.?Gurley, Jour. Geol., 1896, pp. 93, 308.?Bassler, Bull. U. S. Nat.Mus., 1909, 65, pp. 38, 39, fig. 48.Niagaran dolomite: Hamilton, Ontario.Calyptograptus micronematodes Spencer.Calyptograptus micronematodes Spencer, Canadian Nat., 10, 1882, p. 165 (nom.nud.); Trans. Acad. Sci. St. Louis, 4, 1884, p. 579, pi. 3, figs. 4, 4a; Bull. Mus.Univ. State Missouri, 1, 1884, p. 29, pi. 3, figs. 4, 4a.?Gurley, Jour. Geol., 4,1896, pp. 93, 308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 39, 40, figs.49, 50.Niagaran dolomite: Hamilton, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 171Calyptograptus? radiatus Spencer.Calyptograptus radiatus Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.);Trans. Acad. Sci., St. Louis, 4, 1884, p. 580, pi. 4, fig. 3; Bull. Mus. Univ.State Missouri, 1, 1884, p. 30, pi. 4, fig. 3.?Gurley, Jour. Geol., 4, 1896, pp.93, 308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 40, fig. 51.Niagaran dolomite: Hamilton, Ontario.Calyptograptus subrktiformis Spencer. See Dictyonema subretiforme and D.polymorphum.CAMARELLA Billings. Genotype: C. volborthi Billings.Camarella Billings, Canadian Nat. Geo!., 4, 1859, p. 301; 6, 1861, p. 316.?Zittel,Handb. Pal., 1, 1880, p. 692.?Waagen, Mem. Geol. Surv. India, Pal. Indica,13th ser., 1, 1883, p. 412.?Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 122.?Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p,48.?Miller, N. A. Geol. Pal., 1889, p. 338; 2d App., 1897, p. 759.?Hall andClarke, Pal. New York, 8, pt. 2, 1893, p. 219; 13th Ann. Rep. New York StateGeol., 1895, p. 838.?Koken, Die Leitfossilien, Leipzig, 1896, p. 244. ? Huene, Verb. d. Russ.-Kais. Mineral Gesell. zu St. Petersburg, 38, 1900, p.228, fig. 1.?Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 321.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 271.?Schuchert, Zittel-EastmanTextb. Pal., 1913, p. 394.Camarella ambigua (Hall).Atrypa ambigua Hall, Pal. New York, 1, 1847, p. 143, pi. 33, figs. 8, 9.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 190, pi. 10, figs. 8, 9, 8c.Triplesia? ambigua Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 65.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1224, figs.Camarella ambigua Miller, Amer. Pal. Foss., 1879, p. 107.Trenton: Middleville. New York.Camarella bernensis Sardeson. See Parastrophia hemiplicata.Camarella bisulcata Miller. See Cyclospira bisulcata.Camarella brevlplicata Billings.Camarella brevipUcata Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 304,fig. 295.Canadian (Beekmantown) : Stanbridge, Quebec.Camarella calcifera Billings. See Syntrophia calcifera.Camarella congesta Nettelroth. See Hyattidina congesta.Camarella(?) costata Billings.Camarella? costata Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 305, fig, 296.Canadian (Beekmantown): Stanbridge, Quebec.Camarella extans Lesley. See Triplecia extans.Camarella hemiplicata Billings. See Parastrophia hemiplicata.Camarella Inornata Weller.Camarella inornata Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 157, pi. 10,figs. 8-10.Black River (Jacksonburg) : Hainesburg, New Jersey.Camarella lenticularis Billings. See Parastrophia lenticularia. 172 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Camarella longlrostris Billings.Camarella longirostra Billings, Canadian Nat. Geol., 4, 1859, p. 302; p. 445,fig. 23; Geol. Canada, 1863, p. 127, fig. 53.?Raymond, Ann. Carnegie Mus.,7, 1911, p. 249, pi. 36, figs. 29, 30.Triplecia gracilis Raymond, Bull. Amer. Pal., 3, 1902, p. 303, pi. 18, fig. 1.Chazyan: Mingan Islands, Canada (Mingan); Crown Point, Valcoiir Island,Chazy, and Valcour, New York (Day Point, Valcour); East Tennessee (Lenoir).Camarella nucleus Lesley. See Triplecia nucleus.Camarella ops Billings. See Parastrophia ops.Camarella owatonnensis Sardeson. See Cyclospira bisulcata.Camarella pander! Billings.Camarella panderi Billings, Canadian Nat. Geol., 4, 1859, p. 302; Geol. Canada,1863, p. 143, fig. 78.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 220,pi. 62, figs. 19-23.?Raymond, Ann. Carnegie Mus., 7, 1911, p. 250, pi. 36,figs. 31, 32.Black River (Leray): Paiiquettes Rapids, Ottawa River, Canada; Curdsville,Kentucky.Camarella parva Billings.Camarella parva Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 219.?Mat-thew, Trans. Royal Soc. Canada, 11, 1893, p. 103, pi. 7, fig. 9.Chazyan (Quebec? N, P): Table Head and four miles northeast PortlandCreek, Newfoundland.Canadian (Bretonian?Div. C 3a): St. John, New Brunswick.Camarella polita Billings.Camarella polita Billings, Pal. Foss., 1 Geol. Surv. Canada, 1865, pp. 304, 305, fig.297.? Canadian (Beekmantown) : Stanbridge and Island of Orleans, Quebec.Camarella varians Billings.Camarella varians Billings, Canadian Nat. Geol., 4, 1859, p. 445, fig. 24; Geol.Canada, 1863, p. 127, fig. 52; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 220.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 271, fig. 326.?Raymond,Ann. Carnegie Mus., 7, 1911, p. 250, pi. 36, figs. 19-27, 33-36.Chazyan: Mingan Islands, Gulf of St. Lawrence (Mingan); Table Head, fourmiles northeast Portland Creek, and south side of Cow Point, Newfoundland(Quebec N, P); Crown Point, Valcour Island, Plattsburg, Chazy, etc.,New York (Crown Point, Valcour), East Tennessee (Lenoir).Camarella volborthi Billings.Camarella volborthi Billings, Canadian Nat. Geol., 4, 1859, p. 301; Geol. Canada,1863, p. 143, fig. 77.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 220,pi. 62, figs. 11-18; pi. 84, fig. 42.?Miller, N. A. Geol. Pal., 1889, p. 338,fig. 546.Black River (Leray): Pauquettes Rapids, Ottawa River, Canada.Camarium Hall. See Merista Suess.Camarium elongatum Hall. See Merista typa.Camarium typum Hall. See Merista typa.CAMAROCLADIA Ubich and Everett.Genotype: C. dichotoma Ulrich and Everett.Camarocladia Ulrich and Everett in Miller, N. A. Geol. Pal., 1889, p. 156; Geol.Surv. Illinois, 8, 1890, p. 280. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 173Camarocladla dichotoma Ulrich and Everett.Camarocladia dichotoma Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 281,pi. 7, figs. 1, la, b.Black River (Platteville): Near Dixon, Illinoia.Sections of cotypes.?Cat. No. 46549, U.S.N.M.Camarocladia rug^osa Ulrich.Camarocladia rugosa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. xcv, footnote.Black River (Decorah): Mercer County, Kentucky; Goodhue County, Minnesota.Cotypes.?Cat. No. 49833, U.S.N.M.CAMAROCRINUS Hall. Genotype: C. stellatus Hall.Camarocrinus Hall, 28th Rep. New York State Mus. Nat Hist., 1879, pp. 205-6;ext., with additions, 1880, pp. 3-5.?Zittel, Grundzuge Pal., 1895, p. 154.?Zittel-Eastman, Textb. Pal., 1896, p. 183.?Haeckel, Die AmphorideenCystoideen, Leipzig, 1896, pp. 168, 169.?Barrande and Waagen, Syst. Sil. duCentre Boheme, 7, pt. 1, 1897, p. 1.?Bather, Treatise on Zool., 3, Echino-derma, 1900, pp. 77, 136, 161.?Foerste, Jour. Geol., 11, pp. 683-685.?Schuchert, Smiths. Misc. Coll., 47, p. 253.Camarocrinus stellatus Hall.Camarocrinus stellatus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed.,1879, p. 207, pi. 35, figs. 1-8; ext., 1880, p. 5, pi. 35, figs. 1-8.?Schuchert^Smiths. Misc. Coll., 47, 1904, p. 269, pi. 44, figs. 1-5; Maryland Geol. Surv.,Low. Dev., 1913, p. 227, pi. 31, figs. 1-5.Helderbergian: Schoharie, New York (Manlius transition bed); Keyser, WestVirginia; Devils Backbone, near Cumberland, Maryland (Keyser).Plesiotypes.?Cat. No. 35080, U.S.N.M.CAMAROT(ECHIA Hall and Clarke. Genotype: Atrypa congregata Conrad.Camarotoechia Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 189; 13th Ann.Rep. New York State Geol., 1895, p. 826.?Girty, Mon. U. S. Geol. Surv., 32,pt. 2, 1899, p. 538.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 229.?Williams, Bull. U. S. Geol. Surv., 165, 1900, p. 59.?Schuchert, Zittel-East-man, Textb. Pal., 1, 1900, p. 324.?Grabau, Bull. New York State Mus., 45,9, 1901, p. 192; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 190.?Grabau 'andShimer, N. A. Index Fossils, 1, 1907, p. 283.?Raymond, Ann. Carnegie Mus.,7, 1911, p. 219.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 397.Stegerhynchus Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 98.?Schu-chert, Zittel-Eastman Textb. Pal., 1913, p. 397 (Genotype: Camarotoechiawhitei Hall).Camarot(Bcliia(?) acinus (Hall).Rhynchonella acinus Hall, Trans. Albany Inst., 4, 1863, p. 215; 28th Rep. NewYork State Mus. Nat. Hist., 1879, p. 163, pi. 26, figs. 7-11; 11th Rep. StateGeol. Indiana, 1882, p. 306, pi. 26, figs. 7-11.?Nettelroth, Kentucky FossilShells, Mem. Kentucky Geol. Surv., 1889, p. 73, pi. 26, figs. 6, 13, 14, pi.32, figs. 13-16.?Beecher and Clarke, Mem. New York State Mus., 1, 1889,p. 35, pi. 4, figs. 9-11.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889,p. 882, figs.Camarotoechia? acinus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 190. ? Grabau, Bull. New York State Mus., 45, 1901, p. 193, fig. 108; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 193, fig. 108.?Grabau and Shimer, N. A. IndexFossils, 1, 1907, p. 284, figs. 347, 348.Camarotoechia cf. acinus Kindle and Breger, 28th Ann. Rep. Nat. Res. Indiana,1904, p. 439, pi. 8, figs. 1, 2. 174 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Camarotoechia(?) acinus?Continued.Niagaran: Waldron, etc., Indiana; Newsom, etc., Tennessee (Waldron); Louis-\T.lle, Kentucky (Louisville); Pendleton, Indiana; etc.Plesiolypes.?Cai. No. 51366, U.S.N.M. (Nettelroth).Camarotcechla(?) acinus convexa (Foerste).Rhynchonella acinus var. convexa Foerste, Proc. Boston Soc. Nat. Hist., 24,1890, p. 318, pi. 6, fig. 13; Geol. Ohio, 7, 1895, p. 593, pi. 31, fig. 13.?Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 164.Upper Medinan (Brassfield): Hanover, Indiana.CamarotCBchia acinus subrliomboidea Foerste.Camarotoecliia acinus-subrhomboidea Foerste, Jour. Cincinnati Soc. Nat. Hist.,21, 1909, p. 12, pi. 2, fig. 4.Clinton (West Union): Near Martins, Lewis County, Kentucky.Camarotcechia sequiradiata (Hall).Atrypa equiradiata Hall, Pal. New York, 2, 1852, p. 70, pi. 23, fig. 5.Rhynchospira? equiradiata Hall, 12th Rep. New York State Cab. Nat. Hist.,1859, p. 77.Rhynchonella eequiradiata Miller, N. A. Geol. Pal., 1889, p. 367.Camarotcechia sequiradiata Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 190.Protorhyncha sequiradiata Hall and Clarke, ibid., 1895, pi. 56, figs. 7-9.Clinton: Oneida County, New York; Arisaig, Nova Scotia.Camarotcechia altilis Hall and Clarke. See Camarotcechia plena.Camarotcechia? antlqua Savage.Camarotcechia? antiqua Savage, Biill. Geol. Surv. Illinois, 23, 1913, p. 82, pi. 5,figs. 1, 2.Upper Medinan (Edgewood): Alexander County, Illinois, and near Edgewood,Missouri.Camarotcechia argentea (Billings).Rhynchonella? argentea Billings, Cat. Sil. Foss. Anticosti, 1866, p. 43.Anticostian (Jupiter River) : East of Otter River, Anticosti.Camarotcechia(?) coalescens Whiteaves.Camarotoechia(?) coalescens Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt.4, 1906, p. 272, pi. 25, fig. 7.Niagaran: Winisk River, Canada.Camarotcechia? concinna Savage.Camarotcechia? concinna Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 81, pi.5, figs. 4, 5.Upper Medinan (Edgewood): Pike County, Missouri, and near Thebes, Illinois.Camarotcechia congruens Foerste.Camarotcechia congruens Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p.11, pi. 2, fig. 3A, B.Clinton (Crab Orchard and West Union): Near Martins, etc., Lewis County,Kentucky.Camarotcechia deoempllcata (Sowerby).Terebratula decemplicata Sowerby, Sil. Syst., 1839, pi. 21, fig. 17.Rhynchonella decemplicata Davidson, Mon. Brit. Foss. Brach., 3, pt. 7, 1871,p. 177, pi. 23, figs. 20-24.?Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890,p. 320, pi. 6, figs. 23, 24. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 175Camarotoechla decern plicata?Continued.Rhynchonella Eva Billings, Cat. Sil. Foss. Anticosti, 1866, p. 44.Anabaia anticostiana Clarke, Archiv. Mus. Nac. Rio de Janeiro, 10, 1899, Eng.ed., p. 15, pi. 1, figs. 26-28.Camarotcechia decemplicata Twenhofel, Bull. Victoria Mem. Mus., 3, 1914, p. 28.Silurian: England; Cumberland Gap, Tennessee (CUnton); Anticosti (Gun River).Camarotcechia ekwanensis Whiteaves.Camarotoechia Ekwanensis Whiteaves, Ann. Rep. Geol. Surv. Canada, n. s.,14, App. F, 1904, p. 42; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 252,pi. 25, figs. 4, 4b.Niagaran: Ekwan River, and Southampton Island, Canada.Camarotoechia? festinata Savage.Camarotoechia? festinata Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 50, pi.1, figs. 24-26.Upper Medinan (Girardeau) : Thebes, Illinois.Camarotoechia fringilla (Billings).Rhynchonella fringilla Billings, Pal. Foss., 1, 1865 (adv. sheets, 1862), p. 141,fig. 118.Camarotoechia fringilla Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 190,pi. 56, figs. 28-30.Anticostian (Gun River): Gull Cape, Anticosti.Camarotcechia gigantea Maynard.Camarotoechia gigantea Maynard, Maryland Geol. Surv., Low. Dev., 1913, p.354, pi. 63, figs. 15, 16.Helderbergian (Keyser): Devils Backbone, near Cumberland and Cash Valley,Maryland.Camarotoechia glacialis (Billings).Rhynchonella glacialis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 143,fig. 120 (adv. sheets, 1862).Camarotoechia glacialis Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 190.Anticostian (Gun River and Jupiter River): Gull Cape, etc., Anticosti.Camarotcechia hudsonica Grabau.Camarotoechia hudsonica Grabau, Bull. New York State Mus., 69, 1903, p. 1048,fig. 8; 92, 1906, p. 115.Helderbergian (Decker Ferry="Manlius"): Becraft Mountain, near Hudson,New York.Camarotoechia hydraulica (Whitfield).Rhynchonella hydraulica Whitfield, Ann. New York Acad. Sci., 2, 1882, p. 194;Ibid., 5, 1891, p. 512, pi. 5, fig. 17; Geol. Ohio, 7, 1895, p. 414, pi. 1, fig. 17.?Sherzer, Geol. Surv. Michigan, 7, pt. 1, 1900, pi. 17, fig. 17.Camarotoecliia, hydraulica Grabau, Michigan Geol. Surv., Geol. Ser. 2, 1909, p.128, pi. 30, fig. 17.Lower Monroan (Greenfield) : Greenfield, Ohio.Camarotoechia(?) indianensis (Hall).Rhynchonella indianensis Hall, Trans. Albany Inst., 4, 1863, p. 215; 28th Rep.New York State Mus. Nat. Hist., 1879, p. 163, pi. 26, figs. 12-22; 11th Rep.State Geol. Indiana, 1882, p. 306, pi. 26, figs. 12-22; pi. 27, figs. 4-6.?Nettelroth, Kentucky, Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p.76, pi. 33, figs. 18-20.?Boecher and Clarke, Mem. New York State Mus. 1,1889, p. 42, pi. 3, figs. 17-28.?Lesley, Geol. Surv. Pennsylvania, Rep. P4,1889, p. 890, figs. 176 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Camarotoech!a(?) Indianensis?Continued.Camarotceclua(?) indianensis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 166.?Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 46, pi. 4,figs. 26, 27.?Grabau and SMmer, N. A. Index Fossils, 1, 1907, p. 284, fig. 348.Niagaran: Waldron, Indiana; Newsom, Tennessee (Waldron); Louisville, Ken-tucky (Louisville); Shelby and Rochester, New York (Guelph); Wisconsin(Racine); Osgood, Indiana (Osgood); etc.Plesiotype?Cat. No. 51330, U.S.N.M. (Nettelroth).Camarotcechia lamellata (Hall).Atrypa lamellata Hall, Pal. New York, 2, 1852, p. 329, pi. 74, fig. 11.?Weller,Geol. Surv. New Jersey, Pal., 3, 1903, p. 237, pi. 21, figs. 23-29.Rhjmchonella lamellata. Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 78.?Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 359; Amer. Geol., 31,1903, p. 167, figs.Camarotcechia lamellata Grabau, Bull. New York State Mus., 92, 1906, p. 109,fig. 13.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 286, fig. 349.?Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 352, pi. 63, figs. 9, 10.Cayugan (Cobleskill) : Schoharie, New York.Helderbergian: Pinto, Cumberland, and Cash Valley, Maryland (Keyser); NewJersey (Decker Ferry).Camarotcechia leightoni Williams.Camarotcechia leightoni Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 338, pi. 30,figs. 9, 11, 12, 13.Silurian (Pembroke) : Leighton Cove, Washington County, Maine.Cotypes.?Cat. Nos. 58962, 58963, U.S.N.M.Camarotcechia lindenensls Foerste.Camarotcechia lindenensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p.98, pi. 1, fig. 13.Niagaran (Brownsport) : Near Linden, Tennessee.Camarotcechia litchfleldensis (Schuchert).Atrypa sp. Hall, Pal. New York, 2, 1852, p. 330, pi. 74, figs. 11 and 12.Rhynchonella(?) litchfieldensis Schuchert, Amer. Geol., 31, 1903, p. 167, figs.Camarotcechia litchfieldensis Grabau, Bull. New York State Mus., 92, 1906, p.109, fig. 14.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 286, fig.350.?Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 353, pi. 63, figs.11-14.Rhynchonella agglomerata Weller, Geol. Surv. New Jersey, Pal. 3, 1903, pp.234-235, pi. 21, figs. 5-11.Cayugan (Cobleskill): Schoharie Valley, New York.Helderbergian: Keyser, West Virginia; Maryland (Keyser); New Jersey (DeckerFerry).Camarotcechia litchfleldensis angustata Holtedahl.Camarotcechia litchfieldensis angustata Holtedahl, 2d Arctic Expl. "Fram," 1898-1902, No. 32, 1914, p. 22, pi. 8, fig. 1.Helderbergian (Lower beds): Near Borgen, Southwest EUesmereland, ArcticAmerica.Camarotcechia major Raymond.Camarotcechia major Raymond, Amer. Jour. Sci., 4th ser., 20, 1905, p. 369; Ann.Carnegie Mus., 7, 1911, p. 226, pi. 34, figs. 11-14.Chazyan (Valcour): Cystid Point, Valcour Island, New York. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 177Camarotoechla (Stegerhynchus) neglecta (Hall).Atrypa neglecta Hall, Pal. New York, 2, 1852, p. 70. pi. 23, fig. 4; p. 274, pi. 57,fig. 1.?Billings, Canadian Nat. Geol., 1, 1856, p. 138, pi. 2, figs. 11, 12.Rhynchonella neglecta Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 78.?Billings, Geol. Canada, 18G3, p. 315, fig. 325.?Hall, Trans. AlbanyInst., 4, 1863, p. 226.?Meek, Pal. Ohio, 1, 1873, p. 179, pi. 15, fig. 3.?Halland Whitfield, ibid. 2, 1875, p. 134, pi. 7, fig. 15.?Hall, 28th Rep. New YorkState Mus. Nat. Hist., 1879, p. 162, pi. 26, figs. 1-6; 11th Rep. State Geol.Indiana, 1882, p. 305, pi. 26, figs. 1-6; pi. 27, fig. 3.?Beecher and Clarke,Mem. New York State Miis., 1, 1889, p. 37, pi. 4, figs. 3, 6-8.?Foerste, Proc.Boston Soc. Nat. Hist., 24, 1890, p. 317, pi. 6, fig. 12.Rhynchonella (Stenoschisma) neglecta Lesley, Geol. Surv. Pennsylvania, Rep.P 4, 1889, p. 894, figs.Rhynchonella neglecta var. scobina Meek, Amer. Jour. Sci., 3d ser., 4, 1872,p. 277.Rhynchonella scobina Hall and Whitfield, Pal. Ohio, 2, 1875, p. 116.?Foerste,Geol. Ohio, 7, 1895, p. 592.Camarotoochia? neglecta Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 190.?Grabau, Bull. New York State Mus., 45, 1901, p. 193, fig. 107; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 193, fig. 107.?Grabau and Shinier, N. A. IndexFossils, 1, 1907, p. 284, fig. 346.?Clarke and Ruedemann, Mem. New YorkState Mus., 5, 1903, p. 45, pi. 4, figs. 28-31.Niagaran: Reynales Basin, Lockport, etc.. New York (Clinton); Hamilton,Ontario; Dayton and Cedarville, Ohio; Hanover Indiana- Wisconsin;Arisaig, Nova Scotia; etc.Camarotcechia (Stegerhynchus) neglecta cliftonensis Foerste.Rhynchonella (Stegerhynchus) neglecta-cliftonensis Foerste, Bull. Sci. Lab.Denison Univ., 14, 1909, p. 97, pi. 3, figs. 48 A, B, C.Upper Medinan (Brassfield): Clifton, Tennessee.Camarotcechia nutrix (Billings).Rhynchonella nutrix Billings, Cat. Sil. Foss. Anticosti, 1866, p. 43.Gamachian (Ellis Bay) and Anticostian (Gun River, Jupiter River): GamacheBay, etc., Anticosti.Camarotcechia obtusiplicata (Hall).Atrypa obtusiplicata Hall, Pal. New York, 2, 1852, p. 279, pi. 58, fig. 2.Rhynchonella obtusiplicata Hall, 12th Rep. New York State Cab. Nat. Hist.,1859, p. 78.Camarotcechia obtusiplicata Hall and Clarke, Pal. New York, 8, pt. 2, 1893,p. 190.?Grabau, Bull. New York State Mus., 45, 1901, p. 193, fig. 106; Bull.Buffalo Soc. Nat. Sci., 7, 1901, p. 193, fig. 106.Clinton: Lockport, etc.. New York (Rochester); Arisaig, Nova Scotia.Camarotcechia orientalis (Billings).Rhynchonella orientalis Billings, Canadian Nat. Geol., 4, 1859, p. 443, fig. 21;Geol. Canada, 1863, p. 126, fig. 57.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 896, figs.Camarotcechia orientalis Raymond, Ann. Carnegie Mus., 7, 1911, p. 223, pi. 33,figs. 19-22, 24, 33.Chazyan: Mingan Islands (Mingan), St. Martin Junction, near Montreal andAylmer, Canada (Aylmer).84243??Bull. 92?15 12 178 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Camarotoechia pIsa (Hall and Whitfield).Rhynchonella pisa Hall and Whitfield, Pal. Ohio, 2, 1875, p. 135, pi. 7, figs.18-22.?Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv.,1889, p. 78, pi. 32, figs. 24-27.?Whiteaves, Pal. Foss. Geol. Surv. Canada,3, pt. 2, p. 63.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 897,figs.Camarotoechia pisa? Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 12,pi. 2, figs. lA, B.Niagaran: Highland County, Ohio; Louisville, Kentucky; Ontario (Guelph);etc.Plesiotype: Cat. No. 51325, U.S.N.M. (Nettelroth).Camarotoechia plena (Hall).Atrypa plena Hall, Pal. New York, 1, 1847, p. 21, pi. 4 bis, fig. 7.?Billings,Canadian Nat. Geol., 1, 1856, p. 208, figs. 17-19.?Rogers, Geol. Pennsylvania,2, pt. 2, 1858, p. 817, fig. 592.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 191,pi. 3, fig. 28.Rhynchonella plena Hitchcock, Geol. Vermont, 1, 1862, p. 278.?Chapman,Canadian Jour., n. s., 7, 1862, p. 114, fig. 103; 8, 1863, p. 195, fig. 164; Expos.Min. Geol. Canada, 1864, p. 117, fig. 103; p. 167, fig. 164.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 897, figs.?Hall, 12th Rep. New YorkState Cab. Nat. Hist., 1859, pp. 65-66.?Billings, Canadian Nat. Geol., 4,1859, p. 444, fig. 22; Geol. Canada, 1863, p. 126, fig. 50.Camarotoechia plena Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 190.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 284, fig. 345.?Raymond,Ann. Carnegie Mus., 7, 1911, p. 221, pi. 33, figs. 7-18.Atrypa plicifera Hall, Pal. New York, 1, 1847, p. 22, pi. 4 bis, fig. 8.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 191, pi. 3, fig. 29.Rhynchonella plicifera Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.898, fig.Atrypa altilis Hall, Pal. New York, 1, 1847, p. 23, pi. 4 bis, fig. 9.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 192, pi. 3, fig. 30.Rhynchonella altilis Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 883. ? Hitchcock, Geol. Vermont, 1, 1861, p. 277, fig. 176.Chazyan: Chazy, etc., New York; South Hero, Vermont (Valcour); OttawaValley, Canada (Aylmer).Camarotoechia pristina Raymond.Camarotoechia pristina Raymond, Amer. Jour. Sci., 20, 1905, p. 368; Ann. Car-negie Mus., 7, 1911, p. 225, pi. 24, figs. 1-10.Chazyan (Crown Point, Valcour): Valcoiu* Island and Chazy, New York.Camarotoechia pyrrha (Billings).Rhynchonella pyrrha Billings, Cat. Sil. Foss. Anticosti, 1866, p. 44.Anticostian (Gun River): East of Otter River, Anticosti.Camarotoechia semiplicata (Conrad).Atrypa semiplicata Conrad, 5th Ann. Rep. Geol. Surv. New York, 1841, p. 56.RhjTichonella semiplicata Hall, 10th Rep. New York State Cab. Nat. Hist., 1857,p. 65, figs. 1, 2; Pal. New York, 3, 1859, p. 224, pi. 29, figs. la-o.Camarotoechia semiplicata Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909,p. 129, pi. 16, figs. 13, 14; pi. 20, fig. 12.Helderbergian (Coeymans): Schoharie and Carlisle, New York.Upper Monroan (Lucas): Salt shaft, Detroit, Michigan. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 179Camarotcechia semfplicata angulata Grabau.Camarotoecliia semiplicata var. angulata Grabau, Bull. New York State Mus.,92, 1906, p. 118, fig. 27.Helderbergian (Keyser?"Transition beds between Rondout and Manlius"):Schoharie Valley, New York.Camarotoechia vicina (Billings).Rhynchonella vicina Billings, Cat. Sil. Foss. Anticosti, 1866, p. 44.Anticostian (Chicotte): Southwest Point, Anticosti.Camarotoechia (Stegerhynchiis) whitei (Hall).Rhynchonella whitii Hall (not A. Winchell), Trans. Albany Inst., 4, 1863, p.216; 28th Rep. New York State Mus. Nat. Hist., 1879, p. 164, pi. 26, figs.23-33; 11th Rep. State Geol. Indiana, 1882, p. 307, pi. 26, figs. 23-33.?Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 39, pi. 4, figs.1,2,4,5.Rhynchonella whitiana Miller, Amer. Pal. Fossils, 2d ed., 1883, p. 297.Camarotoechia? whitii Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 190.Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 285, fig. 348.Niagaran (Waldron): Waldron, etc., Indiana; Newsom, Tennessee,Camarotoechia (Stegerhynchus) whitei prseciir.sor (Foerste).Rhynchonella (Stegerhynchus) whitii-pra?cursor Foerste, Bull. Sci. Lab. DenisonUniv., 14, 1909, p. 96, pi. 3, figs. 47A-C.Upper Medinan (Brassfield): Clifton, Tennessee.Camarotoechia winislcensis Whiteaves.Camarotoechia(?) Winiskensis Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt.4, 1906, p. 272, pi. 25, figs. 5, 6.Niagaran: Winisk River, Canada.CAMEROCERAS Conrad. Genotype: C. trentonensis Conrad.Cameroceras Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 267.?Hall,Pal. New York, 1, 1847, p. 221, p. 198.?D'Orbigny, Prodr. de Pal., 1, 1849,p. 4.?Saemann, Palaeontographica, 3, 1852, p. 1G2.?Pictet, Traits Pal., 2ded., 2, 1854, p. 642.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 148.?Salter,Quart. Jour. Geol. Soc. London, 15, 1859, p. 376, fig. 2.?Barrande, Syst. Sil.Centre Boheme, 2, pt. 3, 1874, p. 782.?Whitfield, Geol. Wisconsin, 4, 1882,p. 228.?Miller, N. A. Geol. Pal., 1889, p. 432.?Clarke, Geol. Minn., 3, pt. 2,1897, p. 775.?Ruedemann, Bull. New York State Mus., 90, 1906, p. 404.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 39.SannionitesWaldheim, Oryctographie Gouv. deMoscou, 1837, p. 125.?Barrande,Syst. Sil. Centre Boheme, 2, pt. 3, 1874, p. 769.?Hyatt, Proc. Boston Soc.Nat. Hist., 22, 1883, p. 2G6.Proterocameroceras Ruedemann, Bull. New York State Mus., 80, 1905, pp. 322,325. (Genotype: Orthoceras brainerdi Whitfield.)Suecoceras Holm, Sveriges Geol. Unders., ser. C, No. 163, 1896, p. 11; GeoLForen. Stockholm Forhandl., 18, 1896, p. 402.Cameroceras approximatum (Hall).Endoceras approximatum Hall, Pal. New York, 1, 1847, p. 219, pi. 54, fig. 2a. ? Barrande, Bull. Soc. Geol. France, 2d ser., 1855, p. 166; Neues Jahrb. f. Min.,etc., 1855, p. 267.?Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 131.?James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 244.Cameroceras approximatum Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist.,11, pt. 1, 1898, p. 58.Trenton: Middleville, New York. 180 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Cameroceras brainerdi (Whitfield).Orthoceras brainerdi Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 319, pi.27, figs. 14-lG.?Seely, Rep. State Geol. Vermont, 7, 1910, pi. 5G, fig. 5.Orthoceras explorator Whitfield (not Billings), Bull. Amer. Mus. Nat. Hist., 3,1800, p. 33, pi. 2, fig. 3.Cameroceras (Proterocameroceras) brainerdi Ruedemann, Bull. New York StateMus., 80, 1905, pp. 296-339, figs. 5-18, pis. 6-9; Bull. 90, 1906, p. 405, pi. 1,figs. 5, 6; pi. 2, fig. 1.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.39, fig. 1234.Canadian (Beekmantown): Fort Cassin, Vermont; Valcour, New York.Cameroceras curvatum Ruedemann.Cameroceras ciu-vatum Ruedemann, Bull. New York State Mus., 90, 1906, p. 411,fig. 2, pi. 2, figs. 6, 7.Chazyan (Valcour): Isle LaMotte, Vermont; Valcour and Chazy, New York.Cameroceras duplicatum (Hall).Endoceras duplicatum Hall, Pal. New York, 1, 1847, p. 219, pi. 55, fig. 1.Cameroceras dupUcatum Clarke and Ruedemann, Bull. New York State Mus., 65,1903, p. 580.Trenton: Middleville, New York.Cameroceras hennepini Clarke.Cameroceras hennepini Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 779, pi. 52, figs.1-3; pi. 53, figs. 1-3.Endoceras hennepini Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen, ref.).Trenton (Pressor) : Two miles northeast of Spring Valley, Minnesota.Cameroceras inaequabile (Miller).Endoceras inaequabile Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 86, pi. 4,figs. 3, 3a.Suecoceras inaequabile Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 73,pi. 1, figs. 1, 2.Richmond: Bristol, Illinois; Clarksville, Ohio; and Madison, Indiana (Waynes-ville).Cameroceras lativentrum (Hall).Endoceras lativentrum Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed.,1850, p. 181, pi. 5, fig. la, b (doc. ed., p. 173).Cameroceras lativentrum Clarke and Ruedemann, Bull. New York State Mus., 65,1903, p. 580 (gen. ref.).Trenton: Near Low\ille, New York.Cameroceras marcoui (Barrande).Endoceras marcoui Barrande, Syst. Sil. Centre Boheme, 2, 1874, p. 748, pi. 431^figs. 11-13.Suecoceras marcoui Holm, Geol. Foren. Stockholm Forh., 18, 1896, pp. 403, 414.?Ruedemann, Bull. New York State Mus., 90, 1906, p. 425, figs. 9-11.Canadian (Beekmantown): Phillipsburg, Quebec.Cameroceras proteiforme Clarke. See Endoceraa proteiforme.Cameroceras proteiforme var. elongatum Clarke and Reudemann. See Endoceraaproteiforme elongatum.Cameroceras tenulseptum (Hall).Orthoceras tenuiseptum Hall, Pal. New York, 1, 1847, p. 35, pi. 7, fig. 6.?Ray-mond, Amer. Pal. BiUl. 5, 1, No. 14, 1902, p. 19. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 181Cameroceras tenuiseptum?Continued.Cameroceras tenuiseptum Ruedemann, Bull. New York State Mus., 90, 1006, p.408, pi. 3, figs. 1,2; pi. 4, fig. 1; pi. 5, figs. 5, 6; pi. 6, fig. 2.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 40, fig. 1235.Chazyan (Day Point?Valcour): Near Chazy and Valcour Island, New York; IsleLa Motte, Vermont.Cameroceras treutonense Conrad.Cameroceras Trentonensis Conrad, Joui. Acad. Nat. Sci. Philadelphia, 8, 1842,p. 267, pi. 16, fig. 3.?Owen (Emmons), Amer. Jour. Sci. and Arts, 47, 1844,p. 369, fig. 4.?Hall, Pal. New York, 1, 1847, p. 221, pi. 56, figs. 4a-c.?Ver-neuil and Marcou, Amer. Jour. Sci. and Arts, 2d ser., 17, 1854, p. 292.?Em-mons, Amer. Geology, 1, pt. 2, 1855, p. 152.?Barrande, Neues Jahrb. f. Min.,etc., 1855, p. 266; Bull. Soc. Geol. France, 2d eer., 12, 1855, p. 165.Trenton: Middleville, New York.Cameroceras velox (Billings).Orthoceras velox Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 173.Cameroceras velox Ruedemann, Bull. New York State Mus., 90, 1906, p. 410.Chazyan: Mingan Island (Mingan), and Islands of Montreal and Bizard, Canada(Aylmer).Campanulites Troost. See Cleiocrinus Billings.Camptolithus Lindstrom. See Lyellia Edwards and Haime.CANADOCYSTIS Jaekel. Genotype: Malocystites barrandi Billings.Canadocystis Jaekel, Zeits. d. d. geol. GeselL, 52, 1900, p. 675.Sigmacystis Hudson, Bull. New York State Mus., 149, 1911, p. 254. (Genotype:Malocystites emmonsi Hudson.)Canadocystis barrandi (Billings).Malocystites Barrandi Billings, Geol. Surv. Canada, dec. 3, 1858, pp. 67, 68, figs.1, 2; pi. 7, figs. 2a-d.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.471.Canadocystis Barrandei Jaekel, Zeit. d. d. geol. Ges., 52, 1900, pp. 675, 676, fig. 11.Sigmacystis barrandi Hudson, Bull. New York State Mus., 149, 1911, p. 253 (gen.ref.).Chazyan (Aylmer): Montreal, Quebec.Canadocystis emmonsi (Hudson).Malocystites emmonsi Hudson, Bull. New York State Mus., 80, 1905, pp. 270-277, figs. 1-3; pi. 1, figs. 3-7.?Grabau and Shinier, N. A. Index Fossils, 2,1910, p. 471, fig. 1783.Sigmacystis emmonsi Hudson, Bull. New York State Mus., 149, 1911, p. 253,figs. 35, 36.Chazyan (Crown Point, Valcour): Valcour Island, etc., New York.Cancer trilobioides Eaton. See Triarthrus becki.Caninia Dana. See Zaphrentis Rafinesque.Canistrocrinus Miller. See Glyptocrinus Hall.CANNAPORA Hall. Genotype: C. junciformis Hall.Cannapora Hall, Pal. New York, 2, 1852, p. 43.?Rominger, Geol. Surv. Michi-gan, 3, pt. 2, 1876, p. 86.?Roemer, Lethsoa geog., pt. 1, Leth. Pal., 1883, p.498.?Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 62. 182 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cannapora annulata Nicholson and Hinde. See Cannapora junciformis.Cannapora Junciformis Hall.Cannapora junciformis Hall, Pal. New York, 2, 1852, p. 43, pi. 18, figa. la-f.?Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 86, pi. 33, fig. 4.?Lambe,Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 63.Cannapora annulata Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p.138.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 58.Niagaran: Ontario, Wayne County, and Rochester, New York (Clinton); Drum-mond Island, Lake Huron.CAPELLINIA Hall and Clarke. Genotype: C. mira Hall and Clarke.Capellinia Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 248, pi. 70, figs.6-14; 13th Ann. Rep. New York State Geol., 1895, p. 847.?Miller, N. A. Geol.Pal., 2d. App., 1897, p. 759.?Schuchert, Zittel-Eastman Textb. Pal., 1913,p. 395.Capellinia mira Hall and Clarke.Capellinia mira Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 249, pi. 70,figs. 6-14; 48th Rep. New York State Mus., 2, 1895, p. 368, pi. 13, figs. 5-13;14th Rep. State Geol. New York, 1897, p. 368, pi. 13, figs. 5-13.Niagaran (Racine): Milwaukee, Wisconsin.Capulus auriformis Hall. See Diaphorostoma auriformis.Capulus canadensis Whiteaves. See Archinacella canadensis.CARABOCRINUS Billings. Genotype: C. radiatus Billings.Carabocrinus Billings, Geol. Surv. Canada, Rep. Prog, for 1853-1856, 1857, p. 275;Geol. Surv. Canada, dec. 4, 1859, p. 30, fig. 12.?Zittel, Handb. Pal., 1,Munich, 1879, p. 353.?Wachsmuth and Springer, Proc. Acad. Nat. Sci.Philadelphia, 1879, p. 366 (Rev. Pal. pt. 1, p. 143); Ibid., 1886, p. 140; ibid.,1890, p. 380.?Billings, Trans. Ottawa Field Nat. Club, 1, 2, 1881, p. 34.?Miller, N. A. Geol. Pal., 1889, p. 230.?Bather, Ann. Mag. Nat. Hist., 6thser., 5, 1890, p. 332, pi. 14, fig. 13; Bather, Treatise on Zool., pt. 3, Echino-derma, London, 1900, p. 172, fig. 84.?Zittel, Grundzuge Pal., 1, 1910, p.152.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 504.?Springer,Zittel-Eastman Textb. Pal., 1913, p. 217.StrophocrinuB Sardeson, Amer. Geol., 24, 1889, p. 264. (Genotype: S. dicyclicuaSardeson.)Carabocrinus dicyclicus (Sardeson).Strophocrinus dicyclicus Sardeson, Amer. Geol., 24, 1899, p. 264, pi. 12.Podolithus strophocrinus Sardeson, Jour. Geol., 14, 1908, p. 242, figs. 8-10.Black River (Decorah): St. Paul, Minnesota; Ellsworth, Wisconsin.Carabocrinus geometrlcus Hudson.Carabocrinus geometricus Hudson, Bull. New York State Mus., 80, 1905, p. 282,pi. 1, figs. 1, 2, 7.?Grabau and Shuner, N. A. Index Fossils, 2, 1910, p. 504,fig. 1816.Chazyan (Valcour): Valcour Island, Lake Champlain, New York.Carabocrinus ovalis Miller and Gurley.Carabocrinus ovalis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5,1894, p. 25, pi. 2, figs. 20, 21.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 740,fig. 1323.Trenton (Curdsville): Mercer County, Kentucky. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 183Carabocrlnus radlatus Billings.Carabocrinus radiatua Billings, Geol. Surv. Canada, Rep. Prog, for 1853-1856, 1857,p. 276; Geol. Surv. Canada, dec. 4, Can. Org. Rem., 1859, p. 31, pi. 2, figs.3ar-e.?Miller, N. A. Geol. Pal., 1889, p. 230, fig. 261.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 504, fig. 1817.?Springer, Mem. Geol. Surv.Canada, 15 P, 1911, p. 40 (loc. occ).Carabocrinus cf. radiatus Ruedemann, Bull. New York State Mus., 162, 1912,pi. 3, fig. 6.Trenton: Ottawa and Kirkfield, Ontario (Curdsville); Snake Hill, SaratogaCounty, New York (Snake Hill).Carabocrinus(?) tuberculatus Billings.Carabocrinus(?) tuberculatus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 33, pi.10, fig. 2a-c.?Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 9 (loc. ref.).Richmond (Charleton): Charleton Point, Anticosti.Carabocrinus vancortlandti Billings.Carabocrinus vancortlandti Billings, Geol. Surv. Canada, dec. 4, 1859, p. 32, pi.2, fig. 4.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, 1900, p. 28,fig. 9.?Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 40.Trenton (Curdsville): Township of McNab, and Kirkfield, Ontario.Carcinosoma Miller. See Eusarcus Grote and Pitt.Carcinosoma ingens Claypole. See Eusarcus newlini.Carcinosoma newlini Claypole. See Eusarcus newlini.Cardiodonta Hall. See Stropheodonta Hall.Cardiomorpha obliquata Meek. See Ceromyopsis obliquata.Cardiomorpha postriata Emmons. See Lyrodesma postriata.Cardiomorph.\ ventricosa Emmons. See Whitella ventricosa.Cardiomorpha vetusta Hall. See Cuneamya vetusta Hall.Cardium iowensis Owen. See Cypricardites iowensis.CARINAROPSIS Hall. Genotype: C. carinata Hall.Carinaropsis Hall, Pal. New York, 1, 1847, p. 183; 14th Rep. New York StateCab. Nat. Hist., 1861, p. 93.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874,p. 314; N. A. Geol. Pal., 1889, p. 400.?Koken, Bull. d. I'Acad. Imp. Sci.St. Petersburg, 7, 1897, p. 139.?Ulrich and Scofield, Geol. Minnesota, 3,pt. 2, 1897, pp. 857-926.?Grabau and Sliimer, N. A. Index Fossils, 3, 1909,p. 626.Phragmostoma Hall, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 94.?Zittel, Handb. Pal., 2, 1882, p. 184.?Koken, Neues Jahrb. f. Min., Geol.Pal., Beilage-Band, 6, 1889, p. 388.-Miller, N. A. Geol. Pal., 1889, p. 415.?Koken, Die Leitfossilien, Leipzig, 1896, p. 99.?Clarke, ArcMvos Mus. Nac.Rio de Janeiro, 10, author's Eng. ed., 1900, p. 42 footnote; Mem. New YorkState Mus., 6, 1904, p. 322 (Genotype: Carinaropsis cymbula Hall).Carinaropsis acuta Ulrich and Scofield.Carinaropsis acuta Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 928,pi. 62, figs. 6-9.Black River (Decorah): Cannon Falls and near Fountain, Minnesota; LincolnCounty, Missouri.Cotypes.?C&t. Nos. 45736, 45737, U.S.N.M. 184 BULLETIN- 92, UNITED STATES NATIONAL MUSEUM.Carluaropsls carlnata Hall.Carinaropsis carinata Hall, Pal. New York, 1, 1847, p. 183, pi. 40, figs. la-c. ? Ruedemann, Bull. New York State Mus., 40, 1901, p. 30.Cyrtolites siibcarinatus D'Orbigny, Prodr. Pal., 1, 1849, p. 9.?Emmons, Amer.Geology, 1, pt. 2, 1855, p. 167, pi. 6, figs. 25, 26.?Lesley, Geol. Surv. Penn-sylvania, Rep. P 4, p. 183, figs.Carinaropsis? siibcarinata Ulrich and Scofield, Geol. Minnesota, 3, 1897, p. 859(gen. ref.).Trenton: Middleville and Trenton Falls, New York.Carinaropsis cunulae (Hall).Carinaropsis (Pliragmostoma) cunulae Hall, 14th Rep. New York State Cab. Nat.Hist., 1861, p. 95.Phragmostoma cunula? Miller, N. A. Geol. Pal., 1889, p. 415 (gen. ref.).Carinaropsis cunulae Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 927,pi. 62, figs. 10-13.?Grabau and Sliimer, N. A. Index Fossils, 1, 1909, p. 626,fig. 845a-c.Trenton: Nashville, Tennessee (Catheys); Boyle County, Kentucky (Flanagan).Plesiotypes.?Cat. No. 45738, U.S.N.M.Carinaropsis cymbula (Hall).Carinaropsis (Phragmostoma) cymbula Hall, 14th Rep. New York State Cab. Nat.Hist., 1861, p. 94.Carinaropsis cymbula Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 927,pi. 62, figs. 1-4.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 626,fig. 845d-g.Phragmostoma natator (in error for cymbula) Hall, 15th Rep. New York StateCab. Nat. Hist., 1862, pi. 6, figs. 12-14.Phragmostoma cymbula Miller, N. A. Geol. Pal., 1889, p. 415, fig. 693.Trenton: Aliens Bluff, Tennessee (Catheys); Danville, Kentucky (Flanagan).Plesiotypes.?Cat. No. 45739, U.S.N.M.Carinaropsis deleta Sardeson. See Archinacella deleta.Carinaropsis explanata Ulrich.Carinaropsis explanata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 929, pi. 62, fig. 5.Trenton (Upper) : Covington, Kentucky.Eolotype.?Cat. No. 45740, U.S.N.M.Carinaropsis minima Ulrich and Scofield.Carinaropsis minima Uhich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 929,pi. 62, fig. 19.Black River (Decorah): Near Cannon Falls, Minnesota.Eolotype.~Cat. No. 45741, U.S.N.M.Carinaropsis orbiculatus Hall. See Archinacella orbiculata.Carinaropsis patellitormis Hall. See Archinacella patelliformis and A. pulaski-ensis.Carinaropsis phalora (Sardeson).Carinaropsis (or Bellerophon) phalera Sardeson, Bull. Minnesota Acad. Nat. Sci.,3, 1892, p. 336, pi. 6, figs. 14-16.Carinaropsis phalera Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 928,pi. 62, figs. 14-18.Black River (Decorah): St. Paul, Minneapolis, and Chatfield, Minnesota; LincolnCounty, Missouri.Plesiotypes.--Csit. Nos. 45742, 45743, U.S.N.M. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 185Carinaropsis? subcarinata TJlrich and Scofield. See Carinaropsis carinata.Carinopora Zittel. See Semicoscinium Prout.Caritodens Foerste. See Pterinea Goldfuss.CARPOMANON Raiiff. Genotype: Spongia stellatimsulcatum Roemer.Carpomanon Rauff, Palasontographica, 40, 1894, p. 314.Carpomanon glandiilosum Rauff.Carpomanon glandulosum Rauff, Palseontographica, 40, 1894, p. 326, pi. 13, figs.11, 12.Niagaran (Brownsport) : Decatur County, Tennessee.Carpomanon stellatimsulcatum (Roemer).Spongia etellatim-sulcata Roemer, Neues Jahi-b. f. Min., etc., 1848, p. 686, pi. 9,fig. 5.Astylospongia stellatim-sulcata Roemer, Sil. Fauna West Tennessee, 18G0, p. 11,pi. 1, figs. 2, 2a, 2b; Cincinnati Quart. Jour. Sci., 1, 1874, p. 190; Leth. geog.,1 Theil, Leth. Pal., Erste Lief., 1880, p. 309.Carpomanon stellatim-sulcatum Rauff, Palteontographica, 40, 1894, p. 325, pi. 12,figs. 4-13.Caryomanon stellatim-sulcatum Foerste, Jour. Geol., 11, 1903, p. 714.Niagaran (Brownsport): Brownsport, Perryville, etc., Tennessee.Plesioiypes.?Cat Nos. 46578, 49711, U.S.N.M.Carpomanon stellatimsulcatum distorta Rauff.Carpomanon stellatim-sulcatum var. distorta Rauff, Palaeontographica. 40, 1894,p. 324, pi. 13, figs. 9, 10.Niagaran (Brownsport) : Decatur County, Tennessee.CARTOCARIS Salter. Genotype: C. wrighti Salter.Caryocaris Salter, Quart. Jour. Geol. Soc. London, 19, 1863, pp. 135, 139, fig. 15. ? Jones, Rep. 53d Meeting Brit. Assoc. Adv. Sci., 1884, pp. 217, 221.?Zittel,Handb. Pal., 2, 1885, p. 659.?Jones and Woodward, Mon. Brit. Pal. Phyllo-poda. Pal. Soc, 1888, p. 3; ibid., 1892, p. 89.?"WHiitfield, Geol. Surv. Ohio,Pal., 7, 1893, p. 455.?Gurley, Jour. Geol., 4, 1896, p. 85.?Ruedemann,Mem. New York State Mus., 7, pt. 1, Addendum, 1904, pp. 735-736.?Clarke,Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 751.Caryocaris curvilatus Gurley.Caryocaris curvilatus Gurley, Jour., Geol., 4, 1896, p. 87, pi. 4, fig. 3; pi. 5, fig. 3.Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 486, figs. 469, 470.Caryocaris cf. curvilineatus Ruedemann, Mem. New York State Mus., 7, 1904, p.738, pi. 17, fig. 17.Canadian (Levis, Didymograptus zone) : Point Levis, Quebec; Summit Nevada.Caryocaris oblongus Gurley.Caryocaris oblongus Gurley, Jour. Geol., 4, 1896, p. 87, pi. 4, fig. 2.Caryocaris cf. oblongus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,p. 738, fig. 104; pi. 17, figs. 14-16.Canadian (Levis): Point Levis, Quebec.Caryocaris wrighti Salter,Caryocaris \vrightii Salter, Quart. Jour. Geol. Soc. London, 19, 1863, p. 139, fig. 15.Jones and Woodward, Mon. Brit. Phyllopoda, pt. 2, 1892, p. 91, fig. 6.Gurley, Jour. Geol., 4, 1896, p. 87.?Ruedemann, Mem. New York State Mus.,7, pt. 1, 1904, pp. 736, 737, fig. 103; Mem. 11, pt. 2, 1908, pp. 486-488, fig. 482.Lower Ordovician: Great Britain (Skiddaw); Nevada, Arkansas, etc. (Canadian), 186 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CARYOCRINITES Say. Genotype: C. omatiis Say.Caryocrinitos Say, Jour. Acad. Nat. Sci. Philadelphia, 4, 1825, p. 289; Zool. Jour.,London, 2, Oct., 1825, p. 311.?Von Buch, Quart. Jour. Geol. Soc. London,2, 1846, p. 23.?Say (reprint), Bull. Amer. Pal., 1, 1876, p. 347.?Jaekel,Stamm. Pelm., 1, Thecoidea and Cj'stoidea, 1879, p. 313.?Zittel, GrundzugePal., 1, 1910, p. 186.Caryocrinus Agassiz, Ann. Nat. Hist., 1, 1838, p. 448.?Austin and Austin, Mon.Recent and Fossil Grin., 1845, p. 53, fig.?D'Orbigny, Prodr. Pal., 1, 1847,p. 47.?Hall, Pal. New York, 2, 1852, pp. 216, 248.?Muller, Ann. Mag. Nat.Hist., 2d ecr., 13, 1854, p. 247.?Pictet, Traite de Pal., 2d ed, 4, 1857, p. 300.?Billings, Amer. Jour. Sci. and Arts, 2d ser., 48, 1869, p. 72; 49, 1870, p. 53;Ann. Mag. Nat. Hist., 4th ser., 5, 1870, pp. 254, 411; Amer. Jour. Sci., 3d ser.,7, 1874, p. 530.?Zittel, Handb. Pal., 1, 1879, p. 418.?Wachsmuth and Springer,Proc. Acad. Nat. Sci. Philadelphia, 1887, pp. 100-113.?Miller, N. A. Geol.Pal., 1889, p. 231.?Carpenter, Rep. 60th Meeting British Assoc. Adv. Sci.,1891, p. 221.?Haeckel, Amphorideen u. Cystoideen, 1896, p. 143, pi. 4, figs.2L, 21.?Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 67,fig. 36.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 149; Bull. New YorkState Mus. , 45, 1901, p. 149.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 464.?Springer, Zittel-Eastman Textb. Pal. 1, 1913, p.l53.Caryocrinites biilbulus (Miller and Gurley).Caryocrinus bulbulus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5,1894, p. 11, pi. 2, figs. 15-18.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 740,fig. 1324.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 465.?Wood,Bull. U. S. Nat. Mus., 64, 1909, p. 11, pi. 2, fig. 2.Caryocrinites hexagonus Troost, Amer. Jour. Sci. and Arts, 2d ser., 8, 1849, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).Caryocrinus hexagonus Shumard, Trans. Acad. Nat. Sci. St. Louis, 2, 1806, p. 359(gen. ref.).Niagaran (Brownsport): Wayne and Decatur Counties, Tennessee.Pledotype.?Cat. No. 39906, U.S.N.M. (Troost's type of C. hexagonus).Caryocrinites ellipticus (Miller and Gurley).Caryocrinus ellipticus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5,1894, p. 10, pi. 2, figs. 13, 14.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 740,fig. 1325.Clinton (Osgood): Osgood, Indiana.Caryocrinites globosus (Troost).Caryocrinites globosus Troost, Amer. Jour. Sci. and Arts, 2d. ser., 8, 1849, p. 419(nom. nud.); Proc. Amer. Assoc. Adv. Sci., 2, 1850 (nom. nud.).Caryocrinus globosus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 351. ? Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 11, pi. 2, fig. 1.Niagaran (Brownsport): Decatur County, Tennessee.Holotype.?Cat. No. 39907, U.S.N.M.Caryocrinites granulatus Troost. See Caryocrinites milliganse.Caryocrinites hammelli (Miller and Gurley).Caryocrinus hammelli Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 9,1896, p. 65, pi. 5, figs. 5, 6.Clinton (Osgood): Madison County, Indiana.Caryocrinites hexagonus Troost. See Caryocrinites bulbulus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 187Caryocrlnites iudiaucnsis (Miller).Caryocrinus indianensis Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana,1892, p. 629, pi. 5, figs. 9, 10 (adv. sheets 1891, p. 19); N. A. Geol. Pal., 1stApp., 1892, p. 676, fig. 1218.Clinton (Osgood): Jefferson County, Indiana.Caryocrinites insculptus Troost. See Caryocrinites milUganse.Caryocrinites keutuckiensis (Miller and Gurley).Caryocrinus keutuckiensis Miller and Gurley, Bull. Illinois State Mus. Nat.Hist., 6, 1895, p. 59, pi. 5, figs. 22-24.?Miller, N. A. Geol. Pal., 2d App., 1897,p. 740, fig. 1320.Niagaran (Louisville) : Louisville, Kentucky.Caryocrinites loricatus Say. See Caryocrinites omatus.Caryocrinites meconideus Troost. See Caryocrinites milliganse.Caryocrinites mUlIganse (Miller and Gurley).Caryocrinus mllliganEe Miller and Gurley, Bull. Illinois State Mus. Nat. Hist.,9, 1896, p. 63, pi. 5, figs. 3, 4.Caryocrinites granulatus Troost, Amer. Jour. Sci. and Arts, 2d ser., 8, 1849, p. 419(nom. nud.); Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).Caryocrinites meconideus Troost, Amer. Jour. Sci. and Arts, 2d ser., 8, 1849, p.419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 63 (nom. nud.).Caryocrinites insculptus Troost, Amer. Jour. Sci. and Arts, 2d ser., 8, 1849, p.419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).Caryocrinites Roemeri Jaekel, Stammes. Pelmat., Thecoidea u. Cystoidea, 1899,p. 314, pi. 17, fig. 3; p. 302, fig. 70.Caryocrinus omatus Roemer, Sil. Fauna West Tennessee, 1860, p. 33, pi. 3, figs.la-c.Niagaran (Brownsport) : Decatur County, Tennessee.Plesiotypes.?G&t. Nos. 39904, 39905, U.S.N.M. (Troost's types of C. insculptusand C. granulatus).Caryocrinites omatus Say.Caryocrinites omatus Say, Jour. Acad. Nat. Sci. Philadelphia, 4, 1825, p. 290;Zool. Jour., London, 2, 1825, p. 311, pi. 11, fig. 1.?Castelnau, Essai Syst. Sil.I'Amerique Septent., 1843, p. 51, pi. 25, fig. 2.?Buch, Bull. Soc. Geol.France, 2d ser., 1, 1844, p. 209, pi. 3, figs. 7-9, 11-15.?Say, Bull. Amer.Pal., 1, 1896, p. 348.?Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea,1899, p. 314, figs. 76, 77, pi. 17, fig. 1.?Von Buch, Abhandl. k. Akad. d.Wiss. for 1844, Berlin, 1846, p. 91, pi. 1, figs. 1-7; pi. 1, figs. 1-2.Caryocrinus omatus Owen, Amer. Jour. Sci. and Arts, 48, 1845, p. 314, figs. 1, 2. ? Austin and Austin, Mon. Recent and Fossil Crinoidea, 1845, p. 53, pi. 7, figs.3a-m.?Von Buch, Quart. Jour. Geol. Soc. London, 2, 1846, p. 11; Geol.Mem., p. 20, pi. 4, fig. 1.?Hall, Nat. Hist. New York, Geol., 4, 1843, p. 11,figs. 1, 2, etc.; Pal. New York, 2, 1852, p. 182, pi. A41, fig. 1; p. 216, pi. 49,figs, la-z; pi. 49A, figs, la-z.?Pictet, Trait6 de Pal., 2d ed., 4, 1857, p. 300,pi. 99, fig. 18.?Emmons, Man. Geol., 1860, p. 110, fig. 100.?Lincklaen, 14thRep. New York State Cab. Nat. Hist., 1861, pi. 7, figs. 4, 5.?Winchell andMarcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 91.?Shumard, Trans. Acad.Sci. St. Louis, 2, 1866, p. 357.?Billings, Canadian Nat., n. s., 4, 1869, p. 280,fig. 2; p. 285, fig. 4; p. 427, fig. 1; Amer. Jour. Sci. and Arts, 2d ser., 48, 1869,p. 72, fig. 3; p. 76, fig. 4; 49, 1870, p. 52, fig. 1?Hall, 20th Rep. New YorkState Cab. Nat. Hist., 1868, pi. 11 (2), fig. 17; rev. ed., 1870, pi. 11, fig. 17.? 188 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Caryocriaites ornatus?Continued.Billings, Ann. Mag. Nat. Hist., 4tli ser., 5, 1870, p. 254, fig. 3; p. 258, fig. 4;p. 410, fig. 1; Pal. Foss. Geol. Surv. Canada, 2, pt. 1, 1874, pp. 92, fig. 52; 93;96; 97; fig. 53; 98; 105; fig. 64; 124.?Roemer, Leth. geog., 1, Leth. Pal., Atlas,1876, pi. 11, fig. 4a.?Zittel, Handb. Pal., 1, 1879, p. 419, fig. 295.?"Whit-field, Geol. Wisconsin, 4, 1882, p. 280, pi. 16, figs. 1, 2.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 191, fig.?Waclismuth and Springer, Proc. Acad. Nat.Sci. Philadelphia, 1887, p. 113, pi. 4, fig. 6.?Lesley, Geol. Surv. Pennsyl-vania, Rep. P 4, 1889, p. 119, figs.?Miller, N. A. Geol. Pal., 1889, p. 231,fig. 262.?Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 144, fig.23, pi. 4, figs. 20, 21.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 150,fig. 46; Bull. New York State Mus., 45, 1901, p. 150, fig. 46.?Rowley, Amer.Geol., 34, 1904, p. 280, pi. 16, figs. 47, 50, 52.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 465, figs. 1771-1773.Caryocrinites loricatus Say, Jour. Acad. Nat. Sci. Philadelphia, 4, 1825, p. 291;Zool. Jour. London, 2, 1825, p. 312; Bull. Amer. Pal., 1, 1896, p. 349 (reprint^.Clinton: Lockport, Rochester, etc., New York; Grimsby, etc., Ontario (Ironde-quoit and Rochester); Osgood, Indiana (Osgood).Caryocrinites Roemeri Jaekel. See Caryocrinites milliganse.Caryocrinus of authors. See Caryocrinites Say.Caryocrinus hexagonus Shumard. See Caryocrinites bulbulus.Caryocrinus ornatus Roemer. See Caryocrinites milliganae.Caryocystites alternatum Hall. See Holocystites alternatus.Cartocystites cylindricum Hall. See Holocystites cylindricus.CARYOMANON Rauff. Genotype: Spongia incisolobata Roemer.Caryomanon Rauff, Palseontogi-aphica, 40, 1894, p. 313.Caryomanon incisolobatum Roemer.Spongia incisolobata Roemer, Neues Jahrb. f. Min., etc., 1848, p. 685, pi. 9, fig. 4.Astylospongia incisolobata Roemer, Sil. Fauna West. Tennessee, 1860, p. 11,pi. 1, figs. 3, 3a; Cincinnati Quar. Jour. Sci., 1, 1874, p. 191.?Hinde, Mon.British Foss. Sponges, Pal. Soc, 1888, p. 114, pi. 2, figs. 5, 5a.?Grabau andShimer, N. A. Index Fossils, 1, 1906, p. 14.Caryomanon incisolobatum Rauff, Palseontographica, 40, 1894, p. 325, pi. 14,figs. 7, 8.?Foerste, Jour. Geol., 11, 1903, p. 714.Niagaran (Brownsport): Browngport, Perryville, etc. Tennessee.Caryomanon patei Foerste.Caryomanon patei Foerste, Bull. Sci. Lab. Denison L^niv., 14, 1909, p. 107, pi. 1,fig. 15.Niagaran (Brownsport): Near Martins Mills, Tennessee.Caryomanon roemerl Rauff.Caryomanon Roemeri Rauff, Palseontographica, 40, 1904, p. 323, pi. 14, figg. 4-6.Astylospongia Roemeri Hinde, Cat. Foss. Sponges, 1883, p. 92, pi. 23, figs. la-b.Niagaran (Brownsport): West Tennessee.Caryomanon stellatim-sulcatum Foerste. See Carpomanon stellatinasulcatum.CARTOSPONGIA Rauff. Genotype: Siphonia juglans Quenstedt.Caryospongia Rauff, Palseontographica, 40, 1894, p. 296. I BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 189Caryospongia Juglans nuxmoschata (Hall).Astylospongia praemorsa var. nuxmoschata Hall, 28tb. Rep. New York State Mus.Nat. Hist., mus. ed. 1879, p. 104, pi. 3, figs. 12, 13; lltli Ann. Rep. IndianaDep. Geol. Nat. Hist., 1882, p. 223,- pi. 2, figs. 12, 13.Caryospongia juglans (Quenstedt) var. nuxmoschata Raiiff, Palseontographica,40, 1894, p. 310, pi. 11, figs. 4-6.Niagaran (Waldron): Waldron, Indiana; Neweom, Tennessee.Plesiotype?Cat. No. 46548, U.S.N.M.Castocrinus Kentuckiensis Miller and Gurley. See Creraacrinus articulosus.Castocrinus Ringueberg. See Cremacrinus Ulrich.CATASCHISMA Branson. Genotype: C. typa Branson.Cataschisma Branson, Trans. Acad. Sci. St. Louis, 18, 1909, p. 43.Cataschisma typa Branson.Cataschisma typa Branson, Trans. Acad. Sci. St. Louis, 18, 1909, p. 43, pi. 7,fig. 15.Black River (Auburn-Decorah): Lincoln County, Missouri.CATAZTGA Hall and Clarke. Genotype: Athyris headi Billings.Catazyga Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 157, fig. 151; 13thAnn. Rep. New York State Geol. 1895, p. 803.?Schuchert, Zittel-EastmanTextb. Pal., 1, 1900, p. 333.?Cumings, 32d Ann. Rep., Dep. Geol. Nat. Res.Indiana, 1908, p. 887.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 408.Catazyga erratica Hall and Clarke. See Zygospira erratica.Catazyga headi (Billings).Athyris headi Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 147, fig. 125(adv. sheets, 1862); Geol. Canada, 1863, p. 212, fig. 214.Zygospira headi Hall, 23d Rep. New York State Cab. Nat. Hist., 1872, pi. 13,figs. 23-25 (ext. 1871).?Davidson, Suppl. Brit. SH. Brach., Pal. Soc, 18S2,pp. 125, 126, fig.Glassia headi Miller, N. A. Geol. Pal., 1889, p. 346.Catazyga headi Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 158, fig. 151;pi. 54, figs. 24-26, 30.Riclimond: St. Lawrence River, opposite Three Rivers; near St. Nicholas, St.Croix, and Becancour River, Quebec.Catazyga headi Cumings. See Catazyga headi schuchertana.Catazyga headi anticostiensis (Billings).Athyris Headi var. Anticostiensis Billings, Pal. Foss. 1, Geol. Surv. Canada, 1865,p. 147, fig. 127a, b (adv. sheets, 1862).Athyris anticostiensis Billings, Geol. Canada, 1863, p. 212, fig. 215.Zygospira anticostiensis Davidson, Suppl. Brit. Sil. Brach., Pal. Soc, 1882,p. 127, p. 128, figs. 1, 2.Catazyga headi var. anticostiensis Hall and Clarke, Pal. New York, 8, pt. 2, 1895,pi. 54, figs. 33, 34.Richmond (English Head and Charleton): English Head, etc., Anticosti.Catazyga headi borealis (Billings).Athyris Headi var. borcalia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p.147, fig. 126a, b (adv. sheets, 1862).Athyris borealis Billings, Geol. Canada, 1863, p. 212, fig. 216.Catazyga headi borealis Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 54,figs. 31-32.Richmond: Lake St. John and Anticosti, Canada. 190 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Catazyga headi borealis Hall and Clarke (part). See Catazyga headi echuchertana.Catazyga headi schuchertana (Ulrich).Glassia schuchertana Ulrich, Amer. Geol., 1, 1888, p. 186.Zygospira headi Meek, Pal. Ohio, 1, 1873, p. 127, pi. 11, fig. 1.?Miller, CincinnatiQuart. Jour. Sci., 2, 1875, p. 59.?Lesley, Geol. Surv. Pennsylvania, Rep.P 4, 1890, p. 1283, figs.Catazyga headi var. borealis Hall and Clarke (part), Pal. New York, 8, pt. 2,1895, pi. 54, fig. 27.Catazyga headi Cumings, 32 Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 896,pi. 33, figs. 1-lc.Catazyga headi schuchertana Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910,p. 32, pi. 2, fig. 3; pi. 3, figs. 2a-c, 11.Richmond (Waynesville) : Blanchester, etc., Ohio; Indiana; Kentucky.Catazyga uphami (Winchell and Schuchert).Zygospli-a uphami Winchell and Schuchert, Amer. Geol., 9, 1892, p. 291; Geol.Minnesota, 3, 1892, p. 468, pi. 34, figs. 45-48.Catazyga uphami Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 170.Trenton (Prosser): Near Spring Valley, Wykoff, and Fountain, Minnesota.Catazyga uphami austkalis Foerste. See Protorhyncha ridleyana.Catenipora Lamarck. See Halysites Lamarck.Catenipora escharoides Lamarck. See Halysites catenularia.Catenipora meandrina Troost. See Halysites labyrinthica.Catenipora Michelini Castelnau. See Halysites labyrinthica.CAUNOPORA Phillips. Genotji^e: Coscinopora placenta Lonsdale.Caunopora Phillips, Pal. Foss. Cornwall, Devon, and West Somerset, 1841, p. 18. ? McCoy, British Pal. Rocks Foss., 1854, p. 66.?Winchell, Proc. Amer. Assoc.Adv. Sci., 15, 1867, p. 99.?Carter, Ann. Mag. Nat. Hist., 5th ser., 2, 1878, p.310; 4, 1879, p. 101.?Nicholson and Murie, Jour. Linn. See. Zool., 14, 1878,pp. 219, 211.?Dawson, Quart. Jour. Geol. Soc. London, 35, 1879, p. 56.Zittel, Handb. Pal., 1, 1879, p. 286.?Roemer, Geol. Mag., dec. 2, 7, 1880, p.348.?Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, p. 46; Trans. Acad.Sci. St. Louis, 4, 1884, p. 596.?Freeh, Paleont. Abhandl., Dames andKayser, 3, Heft 3, 1886, p. 115.?Nicholson, Mon. Brit. Stromatoporoids,Pal. Soc, 1886, pp. 11,22, 110.?Miller, N. A. Geol. Pal., 1889, p. 156; ZittelEastman Textb. Pal., 2d ed., 1913, p. 123.Caunopora hudsonica Dawson.Caunopora hudsonica Dawson, Quart. Jour. Geol. Soc. London, 35, 1879, p. 52,pi. 4, fig. 9; pi. 5, fig. 10.Niagaran: Albany River, Hudson Bay, Canada.Caunopora mIrabUis Spencer.Caunopora mirabilis Spencer, Bull. Mus. Univ. State Missouri, 1, No. 1, 1884, p.47, pi. 6, figs. 10, lOa-b; Trans. Acad. Sci. St. Louis, 4, 1884, p. 597, pi. 6,figs. 10-lOb.?\Miiteaves, Canadian Rec. Sci., 7, 1896, p. 145.?Parks, Univ.Toronto Studies (Geol. Ser.), 5, 1908, p. 65.Niagaran dolomite: Hamilton, Ontario.Caunopora walkeri Spencer. See Protarea walkeri.Cbntrocrinus TENNESSEENSia Worthen. See Ormocrinua tennesseensia. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 191CENTRONELLA Billings. Genotype: Rhynchonella glansfagea Hall,Centronella Billings, Canadian Nat. Geol., 4, 1859, p. 131, figs. 1-5; CanadianJour., 6, 1861, p. 271.?Hall, 16th nep. New York State Cab. Nat. Hist.,1863, p. 45, figs. 13-17; Amer. Jour. Sci., 2d-8er., 35, 1863, p. 396.?Billings,ibid., 36, 1863, p. 237.?Hall, Trans. Albany Inst., 4, 1863, pp. 134, 148.Winchell, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 122.?Hall, Pal. NewYork, 4, 1867, p. 399.?Hall and Clarke, ibid., 8, pt. 2, 1893, p. 265; 13thAnn. Rep. New York State Geol., 1895, p. 853.Centronella billingsla.na Meek and Worthen. See ^Vhitfieldella? billingsana.Centronella? biplicata WcUer.Centronella? biplicata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 261, pi.24, figs. 1-8.Helderbergian (Keyser?"Manliua"): Nearpass quarry, two miles south ofTri-States, New York.CERAMOPHTLLA Uhich. Genotype: Ceramophylla frondosa Uh-ich.Ceramophylla Ulrich, Geol. Minnesota, 3, 1893, p. 331.?Nickles and Bassler,Bull. U. S. Geol. Surv., 173, 1900, p. 24.?Grabau and Shimer, N. A. IndexFossils, 1, 1907, p. 123.?Bassler, Zittel-Eastman Textb.. Pal. 1913, p. 328.Ceramophylla frondosa Ulrich.Ceramophylla frondosa Ulrich, Geol. Minnesota, 3, 1893, p. 331, pi. 28, figs. 3-7jZittel's Textb. Pal. (Engl, ed.), 1896, p. 268, fig. 438.?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 123, fig. 182b.?Bassler, Zittel-EastmanTextb. Pal., 1913, p. 328, fig. 466.Black River (Decorah): St. Paul and Goodhue County, Minnesota.Cotypes.?Cat. No. 43279, U.S.N.M.CERAMOPORA Hall. Genotype: C. imbricata Hall.Ceramopora Hall, Amer. Jour. Sci., 2d ser., 11, 1851, p. 400; Pal. New York, 2, . 1852, p. 168.?Pictet, Traite de Pal., 4, 1857, p. 170.?Eichwald, LethaeaRossica, 1, 1860, p. 412.?Zittel, Handb. Pal., 1880, p. 617.?Vine, Quart.Jour. Geol. Soc. London, 36, 1880, p. 358.?Ulrich, Jour. Cincinnati Soc. Nat.Hist., 5, 1882, p. 156.?Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p.169.?Hall and Simpson, Pal. New York, 6, 1887, p. xviii.?^James and James,Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 36.?Miller, N. A. Geol. Pal.,1889, p. 296.?Ulrich, Geol. Surv. IlUnois, 8, 1890, pp. 380, 462.?Pocta,Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 112.?Ulrich, Zittel's Textb. Pal.(Engl, ed.), 1896, p. 267.?Simpson, 14th Ann. Rep. State Geol. New Yorkfor 1894, 1897, p. 563.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173,1900, p. 23.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 162; Bull. NewYork State Mus., 45, 1901, p. 162.?Bassler, Bull. U. S. Geol. Surv., 292,1906, p. 18.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 121.?Hennig, Archiv. fur Zool., 4, No. 21, 1908, p. 1.?Bassler, Bull. U. S. Nat.Mus., 77, 1911, p. 76; Zittel-Eastman Textb. Pal., 1913, p. 327.Ceramopora agellus Hall. See Ceramopora? confluens.Ceramopora alternata James. See Coeloclema alternatum.Ceramopora? beani James. See Paleschara beani.Ceramopora concentrica James. Not recognized.Ceramopora concentrica James, Paleontologist, 1, 1878, p. 5.?James and James,Jour. Cincinnati Soc. Nat. Hist, 11, 1888, p. 38, pi. 1, figs. 8, 8a.?Bassler,Proc. U. S. Nat. Mus., 30, 1906, p. 25. 192 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ceramopora concentrica?Continued.Eden: Cincinnati, Ohio, and vicinity.Observation.?Upon restudy in 199G the type lot was found to contain a mixtiu-eof species. The only specimen ever illustrated (James and James, 1888) provedto be an example of Hallopora onealli sigillarioides.Ceramopora? confluens Hall.Ceramopora confluens Hall, 28th Ann. Rep. New York State Mus., doc. ed.,187G, pi. 7, figs. 4, 5; mua. ed., 1879, p. 119, pi. 8, figs. 4, 5; 11th Ann. Rep.Indiana Geol. Nat. Hist., 1882, p. 243, pi. 7, figs. 4, 5.?Simpson, 14th Ann.Rep. State Geol. New York for 1894, 1897, pi. 20, figs. 14, 15.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, p. 197.Ceramopora? (Berenicea) labecula Hall, 23th Ann. Rep. New York State Mus.,doc. ed., 1876, pi. 8, figs. 1-3; mus. ed., 1879, p. 119, pi. 8, figs. 1-3.Ceramopora labecula Hall, 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 242,pi. 7, figs. 1-3.?Simpson, 14th Ann. Rep. State Geol. New York for 1894,1897, pi. 20, fig. 11.Ceramopora agellus Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876,pi. 8, fig. 6; mus. ed., 1879, p. 120, pi. 8, fig. 6.?Hall, 11th Ann. Rep. IndianaGeol. Nat. Hist., 1882, p. 243, pi. 7, fig. 6.Niagaran (Waldron): Waldron, Indiana.Observation.?This species is probably a fistuliporoid. C. agellus and C.labecula are apparently young specimens.Ceramopora? expansa (James).Alveolites expansa James, Paleontologist, No. 3, 1879, p. 19.Ceramopora expansa Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 169;3, 1888, pi. 17, fig. 13.Upper Medinan (Brassfield): Clinton County, Ohio.Ceramopora? explanata Hall.Ceramopora? (Lichenalia?) explanata Hall, Tians. Albany Inst., 19, 18S3,'p. 61(abs., 1879, p. 5); 11th Ann. Rep. Indiana Geol. Nat. Hist, 1382, p. 245.Niagaran (Waldron): Waldron, Indiana.Observation.?Can not be recognized without restudy of tj^pes.Ceramopora foliacea Hall. See Meekopora foliacea.Ceramopora imbricata Hall.Ceramopora imbricata Hall, Pal. New York, 2, 1852, p. 169, pi. 40e, figs. la-i. ? Ulrich, Geol. Surv. Illinois, 8, 1890, p. 463, pi. 39, figs. 1-b.?Grabau, Bull.New York State Mus., 45, 1901, p. 163, fig. 58; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 163, fig. 58.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 19, pi. 6,figs. 1-10.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 121, fig. 181.Clinton: Rochester, Lewiston, and Lockport, New York; Grimsby, Hamilton,and Thorold, Ontario (Rochester); Osgood, Indiana (Osgood).Plesiotypes.?Cat. Nos. 35464, 43280, U.S.N.M.Ceramopora incondita Ulrich and Bassler.Ceramopora? incondita Ulrich and Bassler, Maryland Geol. Surv., Low. Dev.,1913, p. 260, pi. 41, figs. 13-17; pi. 44, figs. 1-3.Helderbergian (Keyser): Near Cumberland and Pinto, Maryland; Keyser, WestVirginia.Cotypes.?Cat. No. 53667, U.S.N.M.Ceramopora incrustans Hall. See Fistulipora crustula. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 193Ceramopora? irregularis James. See Batostoma implicatum and B. Jamesi.Ckramopora? (Berenicea) labecula Hall. See Ceramopora? confluena.Ceramopora niagarensis Bassler.Ceramopora niagarensis Bassler, Bull. U. S. Geol. Siirv., 292, 1900, pp. 19, 20,pi. 6, figs. 11-13.Clinton: Rochester and Lockport, New York; Grimsby, Ontario (Rochester);Osgood, Indiana (Osgood).Cotypes.?Cat. No. 35736 , U.S.N.M.Ceramopora nicholsoni Jimies. Not recognized.Ceramopora Nicholsoni James, Cat. Foss. Cincinnati Groiip, 1875, p. 3.?Bassler,Proc. U. S. Nat. Mus., 30, 1906, p. 27.Monticulipora (Fistr.lipora) nicholsoni James and James, Jour. Cincinnati Soc.Nat. Hist, 11, ]888, p. 34, pi. 1, figs. 6, 6c.?J. F. James, ibid., 18, 1896, p.121, fig. 12. .Maysville: Cincinnati, Ohio, and vicinity.Observation.?A study of the types in 1906 showed they did not have thecharacters assigned them by the author of the species.Ceramopora? notha Hall.Ceramopora (Paleschara?) nothus Hall, Trans. Alljany Inst., 10, 1883, p. 62(abs., 1879, p. 6); 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 244.Niagaran (Waldron): Waldron, Indiana.Observation.?Can not be recognized without a restudy of tj^pes.Ceramopora ohioensis Nicholson. See Ceramoporella ohioensis.Cer.\mopora orbiculata Iliugueberg. See Ceramoporella orbiculata.Ceramopora radiata James. See Ceranioijorella granulosa milfordensis.Ceramopora? raripora Hall.Ceramopora raripora Hall, 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 244;Trans. Albany Inst., 10, 1883, p. 62 (abs., 1879, p. 6).Niagaran (Waldron): Waldron, Indiana.Observation.?Species can not be recognized from description.Ceramopora whitei (James). See Ceramoporella whitei.CERAMOPORELLA Ulrich. Genotype: C. distincta Ulrich.Ceramoporella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 156.?^Miller,N. A. Geol. Pal., 1889, p. 297.?Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 380,464; Geol. Minnesota, 3, 1893, p. 328.?Pocta, Syst. Sil. Centre Boheme, 8,pt. 1, 1894, p. 15.?Ulrich, Zittcl's Textb. Pal. (Engl, ed.), 1896, p. 267.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 564.?Nicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 23.?Bassler, ibid.,292, 1906, p. 20.?Grabau and Shinier, N. A. Index Fossils, 1, 1907, p. 121.?Cumings, 32d Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 742.?Bassler,Bull. U. S. Nat. Mus., 77, 1911, p. 81; Zittel-Eastman Textb. Pal., 1913, p. 327.Ceramoporella distincta Ulrich.Ceramoporella distincta Ulrich, Geol. Surv. Illinois, 8, 1890, p. 404, pi. 39, figs.6, 6a.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 200.?Grabau and Shimer, N. A. Index Fo.ssils, 1 , 1907, p. 122.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 799, pi. 10, fig. 7; pi. 11, figs.2, 2a.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 327, fig. 462.84243??Bull. 02?15 13 194 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ceramoporella distincta?Continued.Not Ceramoporella distincta Ulrich, Geol. Minnesota, 3, 1893, p. 328, pi. 28, fig.13; Zittel's Textb. Pal. (Engl, cd.), 1896, p. 2G7, fig. 435.?Simpson, 14thAnn. Rep. State Geol. New York for 1894, 1897, p. 565, fig. 130.Eden and Maysville (Fairview): Cincinnati, Ohio, and vicinity.Cohjpes.~-Ca,t. No. 43225, U.S.N.M.Ceramoporella granulosa Ulrich.Ceramoporella granulosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 466, pi. 41, figs.2, 2a.?Nickles and Bassler, Bull. U. S. Geol. Surv., p. 173, 1900, p. 200.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 799, pi. 11,figs. 3, 3a.Richmond: "Wilmington, Illinois; Iron Ridge, Wisconsin; Richmond and Ver-sailles, Indiana; Oxford, Waynesville, and other localities in Oliio.Sections of holotype.?Cat. No. 43227, U.S.N.M.Ceramoporella granulosa milfordensis (James).Callopora milfordensis James, Paleontologist, No. 2, 1878, p. 11.Monticulipora (Fistulipora) milfordensis James and James, Jour. Cincinnati Soc.Nat. Hist., 11, 1888, p. 33, pi. 1, figs. 7-7b.?J. F. James, ibid., 18, 1896, p.122.Ceramoporella granulosa-milfordensis Nickles and Bassler, Bull. U. S. Geol.Surv., 173, 1900, p. 200.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 28, pi.6, fig. 7.Ceramopora radiata James, Paleontologist, No. 2, 1878, ]). 12.?Nickles and Bass-ler, Bull. U. S. Geol. Surv., 173, 1900, p. 199.?Bassler, Proc. U. S. Nat. Mus.,30, 1906, p. 28.Fistulipora sp.? Hall and Simpson, Pal. New York, 6, 1889, pi. 14, figs. 15-17; pi.23, fig. 4.Eden: Milford, Ohio; Cincinnati, Ohio, and vicinity.Ceramoporella granulosa minor Bassler.Ceramoporella granulosa minor Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 81,82, fig. 22.Black River (Decorah): Minnesota.Ordovician (Jewe and Wassalem) : Uxnorm, Esthonia, Russia.Ceramoporella inclusa Ulrich.Ceramoporella inclusa Ulrich, Geol. Minnesota, 3, 1893, p. 329, y>1. 28, figs. 8-11. ? Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 565, fig. 132.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 122, fig. 178j.Black River (Decorah): Cannon Falls, St. Paul, etc., Minnesota.Coti/pcs.?Cat. Nos. 43223, 54701, U.S.N.M.Ceramoporella interporosa Ulrich.Ceramoporella interporosa Ulrich, Geol. Minnesota, 3, 1893, p. 330, i)l. 28, fig. 12.Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 565, fig. 131.Trenton (Prosser) : Goodhue County, Minnesota.nolotype.?Cat. No. 43226, U.S.N.M.Ceramoporella irregularis Bassler. See Ceramoporella reticulata.Ceramoporella? irregularis (Whitfield).Alveolites irregularis Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878,p. 72; Geol. Surv. Wisconsin, 4, 1882, p. 251, pi. 11, figs. 1, 2.Ceramoporella? irregularis Nickles and Bassler, Bull. U. S. Geol. Surv., 173,1900, p. 200.Richmond (Maquoketa) : Iron Ridge, Wisconsin. BIBUOGRAPHIC LIST OF GENERA AND SPECIES. 195Ceramoporella ohioensis (Nicholson).Ceramopora Ohioensis Nicholson, Pal. Ohio, 2, 1875, p. 2G5, pi. 25, figs. JOa, h, e(not 10c, d).?James and James, Jour. Cincinnati Soc. Nat. llist., 11, 1878,p. 37.?Miller, N. A. Geol. Pal., 1889, p. 297, fig. 466.Ceramoporella? ohioensis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 466, pi. 39, figs.2, 2a.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1907, p. 800,pi. 11, figs. 4-4g.?Grabau and Sliimer, N. A. Index Fossils, 1, 1908, p. 122.Eden?Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky; Ten-nessee; Illinois; Wisconsin.Plesioti/pe.?C&t. No. 43224, U.S.N.M.Ceramoporella orbiculata (Ringueberg).Ceramopora orbiculata Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 19,pi. 2, figs. 13, 13a.Ceramoporella orbiculata Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 20, pi. 9,figs. 12-15.Clinton (Rochester): Lockport, Rochester, etc., New York; Grimsby, Ontario.Plesioti/pes.?C-^t. No. 35478, U.S.N.M.Ceramoporella reticulata (Spencer).Dictyostoma reticulatum Spencer, Bull. Missouri State Mus., 1, 1884, p. 51, pi. 6,figs. 14, 14a; Trans. Acad. Sci. St. Louis, 4, 1884, p. 601, pi. 6, figs. 14, 14a.Dictyostroma reticulatum Whiteaves, Canadian Rec. Sci., 7, 1896, p. 145.Ceramoporella irregularis Bassler, Bull. IT. S. Geol. Surv., 292, 1906, p. 21, pi. 9,figs. 7-9.?Parks, Univ. Toronto Studies, geol. ser., No. 5, 1908, p. 63, pi. 9,fig. 9; pi. 14, fig. 1.CUnton (Rochester): Hamilton, Ontario; Rochester, New York.Plesintype.?V-At. No. 35480, U.S.N.M. (Bassler's type of C. irregularis).Ceramoporella stellata Ulrich.Ceramoporella stellata Ulrich, Ceol. Surv. Illinois, 8, 1890, p. 465, pi. 41, figs. 1, la.Richmond (Maquoketa): Sterling, Illinois.Ceramoporella triloba Cumings and Galloway.('eramoporella triloba Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1913, p. 74, pi. 6, figs. 1-lc.Eden (McMicken): Big Four Railroad, near Guilford, Indiana.Ceramoporella tubulosa Cumings and Galloway.Ceramoporella tubulosa Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1913, p. 75, pi. 6, figs. 2, 2a; pi. 7, figs. 1-lc.Eden (ilcMicken): Big Four Railroad, near Guilford, Indiana.Ceramoporella whitel (James).Ceramopora Whitei James, Paleontologist, No. 2, 1878, p. 12.?James and James,Jour. Cincinnati Sof. Nat. Hist., 11, 1888, p. 38, pi. 1, figs. 9, 9a.Ceramoporella whitei Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.201 (gen. ref.).?Bassler, Proc. U. S. Nat. Mus., 30, 190G, p. 29, pi. 5, fig. 6;pi. 6, figs. 8-10.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Rea. Indiana, 1908,p. 801.Maysville: Cincinnati, Ohio, and vicinity.Ceratella Ulrich. See Ceratopsis Ulrich.CERATIOCARIS McCoy. Genotype: C. solenoides McCoy.Coratiocaris ^IcCoy, Ann. Mag. Nat. Hist., 2d ser., 1849, p. 412; Cont. BritishPal., 1854, p. 151, fig.?Miller, N. A. Geol. Pal., 1889, p. 537.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 375.?Clarke, Zittel-Eastmau Textb.Pal., 2ded., 1913, p. 750. 196 BULLETIN 1)2^ UNITED STATES NATIONAL MUSEUM.Ceratiocarls aculeata (Hall).C'eratiocaris aouleatus Hall, Pal. New York, 3, 1859, p. 422, pi. 80A, fig. 10.?Jones,Rep. 55th Meeting British Assoc. Adv. Sci., 1886, p. 355.?Jones and Wood-ward, Mon. British Pal. Phyllopoda, Pal. Soc, 1888, p. 62.Cayugan (Bertie): Wator^?ille, New York.Ceratiocarls acuminata Hall.Ceratiocario acumiuatus Hall, Pal. New York, 3, 1859, p. 422, pi. 84, fig. 6.?Pohl-man, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 28, pi. 3, fig. 2.?Jones, Rep.55th Meeting British Assoc. Adv. Sci., 1886, p. 354.?Jonea and Woodward,Mon. British Pal. Phyllopoda, Pal. Soc, 1888, p. 27.?Stose, Proc. BostonSoc. Nat. Hist., 26, 1894, p. 369, figs.?Grabaii, Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 227, fig. 159; Bull. New York State Mus., 45, 1901, p. 227, fig. 159.?Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 375, fig. 1676.Cayugan (Bertie): Buffalo, New York.Ceratiocaris deweyi (Hall).Ouchus deweyi Hall, Pal. New York, 2, 1852, p. 320, pi. 71, figs. 3a-d.?Rogers,Gcol. Pennsylvania, 2, pt. 2, 1858, p. 824, fig. 639.?Lesley, Geol. Surv. Penn-sylvania, Rep. P 4, 1889, p. 495, figs.Ceratiocaris? deweyi Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p.83.?Jones, Rep. 55th Meeting British Assoc. Adv. Sci., 1886, p. 354.Ceratiocaris (Phasganocaris?) deweyi Grabau, Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 227, fig. 160; Bull. New York State Mus., 45, 1901, p. 227, fig. 160.Clinton (Rochester) : Lockport and Rochester, New York.Ceratiocaris grandis Pohlman. See Pterygotus (Erettopterus) grandis.Ceratiocaris maccoyana Hall.("eratiocaris maccoyanus Hall, Pal. New York, 3, 1859, p. 421, pi. 84, figs. 1-5. ? Jones, Rep. 55th Meeting British Assoc. Adv. Sci., 1886, p. 354.Cayugan (Bertie): Buffalo, New York.Ceratiocaris (Limnocaris) prsecedens Clarke.Ceratiocaris (Limnocaris) prsecedens Clarke, 54th Rep. New York State Mus.,1901, p. 92, pi. 3, figs. 5-10.Cayugan (Pittsford): Near Pittsford, Monroe County, New York.CERATOCEPHALA Warder. Genotype: C. goniata Warder.Ceratocephala Warder, Amer. Jour. Sci., 34, 1838, pp. 377, 378.?Vogdes, Proc.Acad. Nat. Sci. Philadelphia, 1877, p. 139.?Clarke, 10th Rep. State Geol.New York for 1890, 1891, pp. 63, 66-68; 44th Rep. New York State Mus., 1892,p. 93, 96-98.?Raymond, Zittel-Eastman Textb. Pal., 1913, p. 722.Acanthaloma Conrad, 3d Ann. Rep. New York. Geol. Surv., 1840, p. 205.?Castel-nau, Essai Syst. Sil. rAmericjue Septent., 1843, p. 23.?Hall, Pal. New York,3, 1861, p. 370.?Clarke, 10th Rep. State Geol. New York for 1890, 1891, p.64; 44th Rep. New York State Mus., 1892, p. 94.Ceratocepliala anclioralis (Miller).Acidaspis anchoralis I\liller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 349, figs. 23,24; N. A. Geol. Pal., 1889, p. 526, figs. 951, 952.Maysville: Cincinnati, Ohio, and vicinity.Ceratocephala ceralepta Anthony.Ceratocephala ceralepta Anthony, Amer. Jour. Sci., 34, 1838, p. 379, figs.?Vogdes, Proc. Acad. Nat. Sci. Philadelphia, 1877, p. 140.?Clarke, 44thRep. New York State Mus., 1892, pp. 98, 101. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1D7Ceratocepliala ceralopta?Continued.Acidaspis ceralcpta Meek, Gcol. 8urv. Ohio, Pal., 1, 1873, p. 169, pi. 14, figa.8, 9.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 130.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1052, pi. 54, figs. 1, la.MaysvilU;: Cincinnati, Ohio, and vicinity.Ceratocephala cincinnatiensis (Meek).Acidaspis Cincinuatiensis Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 167, pi. 14,fig. 3.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 130.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1023, pi. 54, figs. 2, 4.Ceratocephala cincinnatiensis Vogdes, Proc. Acad. Nat. Sci. Philadelphia, 1877,p. 140.Acidaspis rhyncocephalus Meek, Geol. Surv. Oliio, Pal., 1, 1873, p. 169.?Miller,Cincinnati Quart. Jour. Sci., 1874, p. 131.Eden: Cincinnati, Ohio and vicinity.Ceratocephala coalescens Van Ingen.Ceratocephala coalescens Van Ingen, School of Mines Quart., 23, 1901, p. 48,fig. 11, p. 41.Niagaran (St. Clair): St. Clair Spring, Independence Coimty, Arkansas.Ceratocephala crosotu.s Vogdes. See Odontopleura crosota.Ceratocephala depauperata Van Ingen.Ceratocephala goidata depauperata Van Ingen, School of Mines Quart., 23,1901, p. 42.Niagaran (St. Clair): St. Clair Spring, Independence County, Arkansas.Ceratocephala flmbriata (Hall).Acidaspis finibriata Hall, 11th Rep. Dep. Geol. Nat. Hist., Indiana, 1882, p.334, pi. 33, fig. 11; Trans. Albany Inst., 10, 1883, p. 76.Ceratocephala fimbriata Clarke, 44th Rep. New York State Mus., 1892, p. 101(gen. ref.)Niagaran (Waldron): Waldron, Indiana; Newson, Tennessee.Ceratocephala gouiata Warder.Ceratocephala goniata Warder, Amer. Jour. Sci., 1st ser., 34, 1838, p. 378, fig. ? Vogdes, Proc. Acad. Nat. Sci. Philadelphia, 1877, p. 140.?Clarke, 44thRep. New York State Mus. Nat. Hist., 1892, pp. 91-100, pi. 1, fig. 1.?Kindle,28th Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 4S0, pi. 24, fig. 13.?VanIngen, School of Mines Quart., 23, 1901, p. 42, pi., figs. 3, 3a.?Weller, Bull.Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 255, pi. 23, figs. 1-2.?Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 38.Acidaspis ida Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, pp.106, 109, 112, pi. 3, fig. 13.?Vogdes, Proc. Acad. Nat. Sci. Philadelphia, 1877,p. 140.Acidaspis danai Hall, Geol. Surv. Wisconsin, 1, 1862, p. 432 (no description);Adv. sheets, 18th Rep. New York State Cab. Nat. Hist., 1865, p. 28; 20thRep., 1867, p. 333, pi. 21, figs. 8, 9, p. 389; rev. ed., 1870, p. 423, pi. 21,figs. 8, 9.Niagaran: Near Springfield, Ohio; Bridgeport, etc., Illinois; Port Daniel, Bayof Chaleurs and Lake Memphremagog, Quebec.Ceratocephala goniata depauperata Van Ingen. See Ceratocephala depauperata.Ceratocephala halli Vogdes. See Odontopleura halli. 198 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ceratocephala horanl (Billings).Acidaspi8 horani Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857,p. 341; Geol. Canada, Geol. Surv. Canada, 1863, p. 190, fig. 190.Ceratocephala Horani Vogdes, Proc. Acad. Nat. Sci. Philadelpliia, 1877, p. 140. ? Clarke, 10th Rep. State Geol. New York, 1891, pp. 69, 71; 44Ui Rep. NewYork State Mus., 1892, pp. 99, 101.Trenton : Riviere a la Friponne near Cape Toxirment, Canada.Ceratocephala narrawayl Raymond.Ceratocephala narrawayi Raymond, 7th Rep. State Geol. Vermont, 1910, p. 234,pi. 38, fig. 5; pi. 39, fig. 15; Ann. Carnegie Mus., 7, 1910, p. 73, pi. 18, fig.5; pi. 19, fig. 15.?Perkins, 8th Rep. Vermont State Geol., 1912, pi. 18,fig. 5.Chazyan (Crown Point): Chazy, New York.Ceratocephala nodulata Van Ingen.Ceratocephala nodulata Van Ingen, School of Mines Quart., 23, 1901, p. 44,fig. 10; p. 41, figs. 4, 5.Niagaran (St. Clair): St. Clair Spring, Independence County, Arkansas.Ceratocephala trentonensis? Vogdes. See Odontopletira trentonensis.CERATOPEA Ulrich. Genotype: C. keithi Ubich.Ceratopea Ulrich, Bull. Geol. Soc. Amer., 22, 1911, p. 665.Ceratopea keithi Ulrich.Operculum of ?Maclurea, Bassler, Bidl. Geol. Surv. Virginia, 2a, 1909, pi. 20,fig. 3.Ceratopea keithi Ulrich, Bull. Geol. Soc. Amer., 22, 1911, p. 665.Canadian (Beekmantown): Wytheville, Virginia; Tennessee; Missouri.CERATOPORA Grabau. Genotype: C. jacksoni Grabau.Ceratopora Grabau, Proc. Boston Soc. Nat. Hist., 28, 1899, p. 414; Bull. BuffaloSoc. Nat. Hist., 6, 1899, p. 132.Ceratopora? marylandica Swartz.Ceratopora? marylandica Swartz, Maiyland Geol. Surv., Low. Dev., 1913, p. 220,pi. 26, figs. 6, 7.Helderbergian (Keyser): Keyser, West Virginia; Maryland.Ceratopora regularis Grabau.Ceratopora regularis Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 109,pi. 11, fig. 8.Upper Monroan (Amherstburg) : Detroit River opposite Amherstburg, Ontario.Ceratopora tenella (Rominger).Syringopora tenella Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 81, pi. 30,fig. 4.Ceratopora tenella Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 110, pi. 14,fig. 6.Niagaran: Point Detour, Drummonda Island, Lake Huron.Upper Monroan (Anderdon): Near Amherstburg, Ontario.CERATOPSIS Ulrich. Genotype: Beyrichia chambersi Miller.Ceratella Ulrich, Jour. Cincinnati Soc;. Nat. Hist., 13, 1890, p. 113 (mim. mid.).Ceratopsis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 675; Zittel-Eastman Texlb.Pal., 1, 1900, p. 644.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p.308.?Bonnema, Mitt. Min. Geol. Hust. Groningen, 2, 1909, p. 39.?Cumings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1040.?Grabau andShimer, N. A. Index Fossils, 2, 1910. p. 352.?Bassler, Zittel-Eastman Textb.Pal., 2ded., IcolS, p. 738. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 190Ceratopsis chambers! (Miller).Beyrichia chambersi ]\Iiller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 234, fig. 27;N. A. Geol. Pal., 1S89, p. 534, fig. 975.Tetradella chambersi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 112.Ceratopsis chambersi Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 676, ])1. 46, figs.19-22.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 39, figs.13-16.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.1042, pi. 53, figs. 1, la.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.352, fig. 1660a-c.?Ruedemann (var.), Bull. New York State Mus., 162, 1912,p. 121, pi. 9, fig. 15.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig.1425k.Black River and Trenton: Minneapolis, etc., Minnesota.Eden: Cincinnati, Ohio, and vicinity; Albany County, New York (IndianLadder).Plesiotypes.?Csit. No. 41506, U.S.N.M.Ceratopsis chambersi robusta Cumings. See Ceratopsis robusta.Ceratopsis intermedia Ulrich.Ceratopsis intermedia Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 676.Trenton: Covington, etc., Kentucky.Cot>/pes.?CvA.. No. 41500, U.S.N.M.Ceratopsis oculifera (Hall).Beyrichia oculifera Hall, 24th Rep. New York State Mus. Nat. Hist., 1872, p.232, pi. 8, figs. 9, 10 (extract, 1871, p. 8, pi. 4, fig. 10).?Miller, CincinnatiQuart. Jour. Sci., 1, 1874, p. 118.?Hall and Whitfield, Geol. Surv. Ohio,Pal., 2, 1875, p. 103, pi. 4, figs. 9, 10.?Jones, Quart. Jour. Geol. Soc. London,46, 1890, p. 21, pi. 4, figs. 19a, b, 20.Tetradella oculifera Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 113,fig. 1.Ceratopsis oculifera Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 676.?Ulrich andBassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 39, figs. 19, 20.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1044, pi. 53, figs. 3, 3a. ? Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 352, fig. 1662.Maysville (Corryville) : Cincinnati, Ohio, and vicinity.Ceratopsis? quadrifida (Jones).Beyrichia quadrifida Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891,p. 66, pi. 11, figs. 9a, b.Ceratopsis? quadrifida Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 308,pi. 39, figs. 21, 22.Trenton: Lorette Falls, Quebec.Ceratopsis robusta (Ulrich).Beyrichia cham])ersi Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 104,pi. 4, figs. 11, 12.Beyrichia chambersi var. robusta LTlrich, Geol. Minnesota, 3, pt. 2, 1894, p. 677,fig. 50.Ceratopsis chambersi var. robusta Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 1043, pi. 53, figs. 2, 2a.Ceratopsis njbufita Ulrich and Ba.'tsler, Proc. I^ S. Nat. Mus., 35, 1908, p. 308, i)l.39, figs. 17, 18.Richmond: Waynesville, etc., Ohio; Richmond and Versailles, Indiana: nearSpring Valley, Minnesota.Holotype.?C&t. No. 41335, U.S.N.M. 200 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.CERATOPYGE Hawle and Corda. Genotype: Olenus forticula Sars.Ceratopyge Hawle and Corda, Abh. bohmisclien Gesell. d. Wiss., 5, 1847 (extract),p. 161, pi. 7, fig. 81.?Koken, Die Leitfossilien, Leipzig, 1896, p. 19, textfig. 12.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 25.?Raymond, Zittel-Eastman Textb. Pal., 1913, p. 717.Ceratopyge canadensis Walcott.Ceratopyge canadensis Walcott, Smiths. Misc. Coll., 57, 1912, p. 233, pi. 35, figs.13-22.Lower Ordovician (Goodsir): MoUison Creek, and Ice River Valley, ten milessoutheast of Leanchoil, British Columbia.CERAURINUS Barton. Genotype: C. marginatus Barton.Cheirurua and Ceraurus (part) of authors.Ceraurinus Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 547.Ceraurinus confiuens Barton.Ceraurinus confluens Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 555, pi., fig. 3.Trenton (Picton) : Pefferlaw and Collingwood, Ontario.Ceraurinus Icarus (Billings).Cheirurus Icarus Billings, Canadian Nat. Geol., 5, 1860, p. 67, fig. 2; Geol. Canada,Geol. Surv. Canada, 1863, p. 219, fig. 231; Cat. Sil. Foss. Anticosti, Geol.Surv. Canada, 1866, p. 27 (loc. ref.).?Whiteaves, Pal. Fosa., Geol. Surv.Canada, 3, pt. 2, 1895, p. 128 (loc. occ).Ceraurus (Eccoptochile) icarus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 738(gen. ref.).Ceram-us icarus Meek, Geol. Siu-v. Ohio, Pal., 1, 1873, p. 162, pi. 14, figs, lla-c. ? Miller, Cincinnati Quart. Jour. Sci. 1, 1874, p. 133.?Cumings, 32d Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1908, p. 1059, pi. 54, figs. 8, 8a.Cerarus meekanus Miller, N. A. Geol. Pal., 1889, p. 537.Eccoptochile? meekanusSlocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 75,pi. 17, figs. 6-9.Ceraurinus icarus Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 551, pi., fig. 7.Richmond: Charleton Point, English Head, etc., Anticosti (English Head,Charleton, and Gamachian); Stony Mountain, Manitoba (Stony Mountain);Ohio; Indiana; Iowa.Ceraurinus marginatus Barton.Ceraurinus marginatus Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 550, pL,fig. 1.Riclimond: Manitoulin Island, Lake Huron.Ceraurinus polydorus (Billings).Cheirurus Polydorus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 286,fig. 274.Ceraurus polydorus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 738 (gen. ref.).Ceraurinus polydorus Barton, Bull. Mus. Comp. Zool., 54, 1913, 549.Chazyan (Quebec-N): Table Head and Portland Creek, Newfoundland.Ceraurinus pompilius (Billings).Cheirurus Pompilius Billings, Pal. Foss., 1, Geol. Sm-v. Canada, 1865, p. 181,fig. 162.Ceraurus (Ceraurus) pompilius Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 738.Ceraurus (Crotalocephalus) pompilius Grabau and Sliimer, N. A. Index Fossils,2, 1910, p. 319.Ceraurinus pompilius Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 550.Chazyan (Mingan): Large Island, Mingan Islands, Quebec. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 201Cerauriniis .scofleldi (Clarke).C!>Ttoinetopi!s scofioldi Clarko, Geol. Minnesota, 3, pt. 2, 1894, p. 735, fig. 55.Ceram-us scofleldi Miller, N. A. Geol. Pal., 2d App. 1897, p. 787 (gen. ref.).Ceraurinua scofleldi Barton, Bull. Mjis. Comp. ZooL, 54, 1913, p. 554, pL, fig. 4.Black River: Minneapolis, Minnesota (Platteville); Newport, New York.?Stonea River (liebanon); Lebanon, Tennessee.Holotype.?Cat. No. 41952, U.S.N.M.Cerauriaus trentonensis Barton.Ceraurinua trentonensis Barton, Bull. Mus. Comp. ZooL, 54, 1913, p. 552, pi.,figs. 5, 6.Trenton (Ciu-dsville): Goat Island, Mauitoulin Islands, Lake Huron.CERAURUS Green. Genotype: C. pleurexanthemus Green.Ceraurua Green, Mon. Tril. N. A. 1832, p. 83; Monthly Amer. Jour. Geol., 1, 1832,p. 560.?Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 640, 551.?Hawleand Corda, Abh. d. boliniischen Gesell. d. Wiss., 5 (ext.), 1847, p. 161, pi. 7,fig. 82.?Hall, Pal. New York, 1, 1847, p. 244.?Roemer, Neues Jalu-b., f.Min., etc., 1848, p. 179.?McCoy, Ann. and Mag. Nat. Hist., 2d ser., 4, 1849, p.400; British Pal. Rocks and Fossils, 1854, p. 153.?Emmons, Amer. Geology,1, pt. 2, 1855, p. 217.?Chapman, Canadian Jour., n. s., 1, 1856, p. 282.?Hall,12th Rep. New York State Cab. Nat. Hist., 1859, p. 67.?Hitchcock, Geol.Vermont, 1, 1862, p. 300.?Chapman, Canadian Jour., n. e., 8, 1863, p. 31;Expos. Min. Geol. Canada, 1864, p. 139.?Miller, Cincinnati Quart. Jour. Sci.,1, 1874, p. 132.?Walcott, Annals Lyceum Nat. Hist. New York, 11, 1875, p.155 footnote.?Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 7th ser., 30,1881, p. 121.?Miller, N. A. Geol. Pal., 1889, p. 537.?W. D. Matthew, Trans.New York Acad. Sci., 12, 1893, p. 238.?Clarke, Geol. Minnesota, 3, pt. 2,1894, pp'. 736, 738.?Walcott, Geol. Mag., dec. 4, 1, 1894, pp. 247, 248; Proc.Biol. Soc. Washington, 9, 1894, p. 91.?Beecher, Amer. Jour. Sci., 4th ser.,13, 1902, p. 167.?Raymond, Annals Carnegie Mus., 3, 1905, p. 375.?Cumings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1051.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 319.?Slocom, Field Mus. Nat. Hist.,Geol. Ser., 4, 1913, p. 70.?Raymond, Zittel-Eastman Textb. Pal., 1913,p. 724.?Raymond and Barton, Bull. Mus. Comp. ZooL, 54, 1913, p. 527.Observation.?Most of the above references are to Cerauriis in the broad sense.Ceraurus (CYRTOMETOPU8) APOLLO Clarke. See Anacheirurus apollo. ( 'eraurus bimucronatus Roemer. See Cheirurua niagarensia.Ceraurus bispinosus Raymond and Barton.Ceraurua biapiuosua Raymond and Barton, Bull. Mus. Comp. ZooL, 54, 1913,p. 536, pi. 1, figs. 3, 4.Black River: Tetreauville, Quebec.Ceraurus (Pseudosph^rexochu.s) clintoni Foerste. See Pseudosphaerexochuaclintoni.<'eraubus crosotus Locke. See Odonto])leura crosota.Ceraurus dentatus Raymond and Barton.Ceraurua pleurexanthemus Hall (part), Pal. New York, 1, 1847, pi. 65, figa. Id,h, i, m; pi. 66, figa. la-g.?Emmona, Geology 2d Dist. New York, 18'i2, p.390, fig. 6; Amer. Geology, 1, 1855, pi. 15, figs, la, f, h, i, k.?BilUngs, Geol.Canada, 1863, p. 188, fig. 188.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 160,fig.?Miller, N. A. Geol. Pal., 1889, p. 538, fig. 984.?(turnings, 32d Ann.Rep. Indiana State Geol. Surv., 190S, pi. 54, figa. 9a-b (after Hall).?Grabauand Shinier, N. A. Index Fossils, 2, 1910, p. 319, fig. 1632. 202 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ceraurus deutatus?Continued.Ceraurus dentatua Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 534,pi. 1, fig. 1; pi. 2, figs. 4, 5.Trenton: MiddleAdlle, etc., New York; i^elleville, Coburg, Peterboro, Kirkfield,etc., Ontario.Ceraurus elginensis Slocom.Ceraurus elginensis Slocom, Field Mus. Nat. Hiat., Geol. Ser., 4, 1913, p. 73, pi.17, figs. 4-5.Ricbmond (Maquoketa): Elgin and Bloomfield, Iowa.Ceraurus (Nieszkowskia) glaucus Clarke. See Nieszkowslda glaucus.Ceraurus granulosus Raymond and Barton.Ceraurus pompilius Raymond (not Billings), Ann. Carnegie Mus., 3, 1905, pp.365-6 (not fig. 6), pi. 14, fig. 14; 7th Rep. State Geol. Vermont, 1911, p. 240,pi. 36, fig. 14.Ceraurus granulosus Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p.536.Chazyan (Crown Point): Sloop Bay, Valcour Island, New York. ~^Ceraurus hudsoni Raymond.Ceraurus hudsoni Raymond, Ann. Carnegie Mus., 3, 1905, p. 367, pi. 14, fig.15, p. 375; 7th Rep. State Geol. Vermont, 1910, p. 240, pi. 36, fig. 15.?Ray-mond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 535.Ceraurus (Crotalocephalus) hudsoni Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 319.Chazyan (Crown Point): Sloop Bay, Valcour Island, New York.Ceraurus hydei Weller. See Cheirurus hydei.Ceraurus (Eccoptochile) icarus Clarke. See Ceraurinus icarus.Ceraurus icarus Meek. See Ceraiulnus icarus.Ceraurus insignis Hall. See Cheirurus niagarensis.CEiiAURUS meekanus Miller. See Ceraurinus icarus.Ceraurus (Cyrtometopus) mercurius Clarke. See Pseudosphserexochus merciirius.Ceraurus milleranus Miller and Gurley.?Calymene bucklandii Anthony, Amer. Jour. Sci., 36, 1839, p. 106, figs. 1, 2.Ceraurus milleranus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 3,1893, p. 80, pi. 8, fig. 10.?Raymond and Barton, Bull. Mus. Comp. Zool., 54,1913, p. 538, pi. 1, figs. 6-8, pi. 2, fig. 6.?Slocom, Field Mus. Nat. Hist.,Geol. Ser. 4, 1913, p. 71, pi. 17, figs. 1-3.Maysville (Corryville): Cincinnati, Olxio.Observation.?Calymene bucklandi Anthony probably refers to this species,but the description and figures are too poor for accurate identification.Ceraurus miseneri Foerste.Ceramus miseneri Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 228, pi. 4,fig. 7A, B.?Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 539.Richmond (Whitewater): Richmond, Indiana; Dayton, Ohio.Ceraurus niagarensis of authors. See Cheirurus niagarensis. BIBLIOGRAPHIC JJST OF GENERA AND SPECIES. 20oCeraiinis numitor (Billings).Cheirurua numitor Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 27, fig. 11.Ceraurus (Nieszkowskia) numitor Clarke, Geol. Minnesota, 3, pt, 2, 1894, p. 738(gen. ref).Ceraurus numitor Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 540.Richmond (English Head): English Head, Anticosti.Ceraurus nuperus Miller. See Cheirurus nuperus.Ceraurus (Nieszkowskia) perforator Clarke. See Nieszkowskia perforator.Ceraurus pleurexauthemus Green.Ceraurus i)leurexanthemus Green, Monthly Amei. Jour. Geol., 1, 1832, p. 560,pi. 4, fig. 10; Mon. Tril. N. A., 1832, p. 84, fig. 10, cast 33.?Hawle andCorda, Prodr. monogr. Bohem. trilobiten, 1847, p. 161, pi. 7, fig. 82.?Hall,Pal. New York, 1, 1847, p. 242, pi. 65, figs, la^c, le-g (not Id, h, i, m norpi. 66, fig. la-g=C. dentatus).?Emmons, Amer. Geology, 1, pt. 2, 1855,p. 217, pi. 15, figs. Ib-le, Ig (not la, h, i, k=C. dentatus).?Lincklaen, 14thRep. New York State Cab. Nat. Hist., 1861, pi. 3, fig. 7.?Hitchcock, Geol.Vermont, 1, 1862, p. 300, fig. 214.?Chapman, Canadian Jour., n. s., 8, 1863,p. 31, fig. 146; p. 201, fig. 197.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874,p. 3, 132.?Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1877, pp. 89, 95; Mus. ed., 1879; Annals Lye. Nat. Hist., New York, 11,1876, p. 155, pi. 11; 31st Rep. New York State Mus. Nat. HLst., 1880, pp. 61,66, pi. 1, figs. 3, 4; Bull. Mus. Comp. Zool., 8, 1881, pp. 191-216, pi. 1, figs.1-5; pi. 2, figs. 1-4, 6, 8; pi. 3, figs. 2-7; pi. 4, figs. 1, 2, 4-6, 8, 8a; pi. 6, figs.3-5; Science, 3, 1884; p. 279.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 123, figs.?Clarke, Geol. IVIinnesota, 3, pt. 2, 1894, pp. 734, 738.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 174.?Ruedemann, Bull. NewYork State Mus., 49, 1902, p. 67.?Weller, Geol. Surv. New Jersey, Pal. 3,1903, p. 204, pi. 15, fig. 28.??Slocom, Field Mus. Nat. Hist., Geol. Ser., 4,1913, p. 71.?Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 528,pL 1, fig. 1; pi. 2, figs. 1, 2, 7.?Ruedemann, Pal. Univ., Ser. 4, fasc. 1, 1913,pi. 236.Cheirurus pleurexanthemus \\'liiteave3. Pal. Foss., Geol. Surv. Canada, 3, pt. 3,1897, p. 236.Black River and Trenton: Trenton Falls, etc., New York; New Jersey; Ohio;Tennessee; Minnesota; Canada; etc.Plastotype.?C&t. No. 25695, U.S.N .M.Ceraurus pleurexanthemus Hall (part). See Ceraurus dentatus.Ceraurus polydorus Clarke. See Ceraurinus jjolydorus.Ceraurus pompilius Clarke. See Ceraurinus pompilius.Ceraurus pompilius Raymond. See Ceraurus granulosus.Ceraurus (Pseudosph^rexochus) prolificus Clarke. See Pseudosphserexochusvulcanus.Ceraurus? pustulosus Hall. See Eoharpea pustulosua.Ceraurus rarus Walcott. See Encrinurua rams.Ceraurus (Sph^rocoryphe) robusta Clarke. See Sphaerocoryplie robustus.Ceraurus (Nieszkowskia) satyrus Clarke. See Nieszkowskia satyrus. 204 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ceraurus scofieldi Miller. See Ceraurinus Bcolieldi.Ceraurus?? solitarius (Billings).Cheirurua solitarius Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 206.Canadian (Beekmantown): Near St. Antoine above Quebec, Canada.Ceraurus tarquinius Miller. See Cheirurus tarquinius.Ceraurus trentonensis Miller. See Pseudospliserexochua trentonensis.Ceraurus vigilans Hall. See Encrinurus \T-gilans.CERIONITES Meek and Worthen. Genotype: LunuUtes dactyloides Owen.Cerionites Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 346.?Miller, N. A.Geol. Pal., 1889, p. 156.Cerionites dactyloides (Owen).Lunulites? dactiloides Owen, Geol. Rep. Iowa, Wisconsin, Illinois, 1844, p. 69,pi. 13, fig. 4.Lunulites dactyloides Kayser, Zeits. d. d. geol. Gesell., 27, 1875, p. 780.Cerionites (Pasceolus) dactylioides Meek and Worthen, Geol. Surv. Illinois, 3,1808, p. 346, pi. 5, fig. 2.Cerionites dactyloides Whitfield, Geol. Wisconsin, 4, 1882, p. 267, pi. 13, figs. 1-3. ? Miller, N. A. Geol. Pal., 1889, p. 156, fig. 97.?Cahin, Proc. Iowa Acad. Sci.,1, pt. 3, 1893, p. 13; Amer. Geol., 12, 1893, pp. 53-57, fig.?Winchell andSchuchert, Geol. Minnesota, 3, pt. 1, 1895 (ext. 1893), p. 67.Pasceolus? dactylioides Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 345,pi. 5, figs. 2a-c.Cyclocrinus dactyloides Stolley, Archiv. f. Anthrop. u. Geol. Schles\vig-Holateins,1, Heft 2, 1896, p. 215 (gen. ref.).Niagaran: Carroll County, Illinois; Iowa; Wisconsin.Ceriopora constellata Van Cleve. See Constellaria constellata.Ceromyopsis Meek. Genotype: Cardiomorpha obliquata Meek.Ceromyopsis Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 327; Geol. Surv.Ohio, Pal., 1, 1873, p. 146.Ceromyopsis obliquata Meek.Cardiomorpha?? obliquata Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 327(Ceromyopsis n. gen. suggested); Geol. Surv. Ohio, Pal., 1, 1873, p. 146, pi. 12,figs. 4a, b.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 220.Maysville: Cincinnati, Ohio.Observation.?No additional specimens of this species have been found. Thetype is probably a compressed Cimeamya.Ch^nodomus Ulrich. See Cymatonota Ulricli.CHiETETES Fischer. Genotype: C. radians Fischer.Chsetetes Fischer, Oryct. du Gouv. Moscou, 1837, p. 159.?Nicholson, Pal. Tab.Corals, 1879, p. 260.?Rominger, Amer. Geol., 10, 1892, p. 56.?Zittel-East-man Textb. Pal., 1, 1900, p. 102; ibid., 2d ed., 1913, p. 117.'Not Chsetetes of many authors, who liave used the name for bryozoa.CttiETETES APPROXiMATUs Nicliolson. See Hallopora dalei.Ch.?;tetes (Monotrypella) arbusculus Hall and Simpson. See Monotrypella?arbuscula. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 205Chsetetea arcticus Haughton.ClisetetesarcticusHaughton, Jour. Royal Soc. Dublin, 1, 1857, |>. 24G, i)l. 10, figs.3, 4.Silurian: Beecliy Island, Arctic America.Observation.?Not recognizable. Refers to some sijecies of Favosites.('h>etetes attritus Nicholson. See Dekayia aspera.Ch^tetes briareus Nicholson. See Eridotrypa briareus.C'ttaiTETES CALYCULUs James. See Asi)idopora calycula.Ch^tetes cincinnatiensis James. See Monticulipora cinciunatiensis.Ch^tetes? clathratulus Nicholson. See Escharppora pavonia.Ch^tetes clavacoideus James. See LeptotTyi)a clavacoidea.("PL.ETETKS columnaris Hall. See Tetradium colummiTe.CaETETES coMPRESSUs Ulrich. See Perouopora compressa.Ch^tetes consimilis Hall. See Monotrypella? consimilis.Ca/ETETES constellatus Quenstedt. See Conatellaria florida.Cbletetes corticans Nicholson. See Spatiopora corticans.Chsetetes cruatulatus James.Chastetes crustulatus James, Paleontologist, No. 1, 1878, p. 1; No. 3, 1879, p. 20. ? Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 202.?Bassler,Proc. IT. S. Nat. Mus., 30, 1906, p. 30.Monticulipora crustulata James and James, Jour. Cincinnati Soc. Nat. Hist., 1J,1888, p. 23, pi. 1, figs. 2, 2a; 18, 1895, p. 82.Cincinnatian: Cincinnati, Ohio.Observation.?A variety of forms was included under this name, many of whichhave since been given other names. The type is lost and the description is so . general that it can not be narrowed down to one recognizable form; hence, in theinterests of science, the name has been dropped.Ch^tetes dalei Milne-Edwards and Haime. See Hallopora dalei.Ch^tetes dalei Nicholson. See Hallopora raraosa.Chjeteteh decipiens Rominger. See Peronojjora deciplens.Chjetetes delicatulus Nicholson. See Bythopora delicatula.Ch^tetes discoideus James. See Amplexopora? discoidea.CiLETETES ELEGANS Ulrich. Soc Discotrypa elegaus.Cbletetes expansus Ringueberg. See Orbignyella expansa.Ch^tetes pruASUs Milne-Edwards and Haime. See Amplexopora filiasa.("h^tetes Fletcheri Nicholson. See Dekayella ulrichi.Ch^tetes FR0ND08US Mllno-Edwards and Ilainie. See Heterotrypa frondosa,C^H^TETES PRONDoaus Niclu)lson. See Peron()])()ra decipiens.Ch^tetes prondosus limatus Qvienstedl. See Heterolryjia frondosa. 206 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ch^tetes fruticosus Hall. See Monotrypella? arbuscula.Ch^tetes pusiformis 'WTiitfield. See Lioclemella fusiformis.Ch^etetes gracilis James. See Bythopora gracilis.CbLiETetes granuliferus Ulrich. See Homotrypella graniilifera.Ch^tetes implicata Ulrich. See Batostoma implicatum.Ch^tetes irregularis Ulrich. See Stigmatella irregularis.Cbletetes jamesi Nicholson. See Batostoma jamesi.Ckep. Geol. Nat.Res. Indiana, 1904, p. 483, pi. 23, figs. 1-2; pi. 24, fig. 8.?Gra)>au and Shimer,N. A. Index Fossils, 2, 1910, p. 319, fig. 16.33.Cheirurus niagarensis Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p.542 (gen. ref.).Niagaran (Rochester to Guelph): Rochester, etc., New York; Ontario; Indiana;Tennessee; Wiscon.sin; Illinois; etc.Cheirurus numitor Billings. See Ceraurus luuuitor.Cheiruru.s niipenis Billings.Cheirurus nuperus Billings, Cat. Sil. Fossils Anticosti, Geol. Surv. Canada, 1866,p. 60, fig. 20.Ceraurus nuperus Miller, N. A. Geol. Pal., 1889, p. 638 (gen. ref.).Anticostian (Gun River?Chicotte): East Point, etc., Anticosti.Cheirurus perforator Billings. See Nieszkowskia perforator.Cheirurus pleurexanthemus Billings. See Ceraurus ])leurexanthemus.Cheirurus polydohus Billings. See Cerauriiuis jiolydorus.Cheirurus pompilius Billings. See Ceraurinus pompilius.Cheirurus prolipicus Billings. See Pseudosphajrexochus vulcanus.Cheirurus satyrus Billings. See Nieszkowskia satyrus. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 215Cheirurus sol Billings. See Heliomera sol.Cheirurus 80LITARIUS Billings. See ( 'eraurus solitarius.Cheirurus tarquinius Billings.Cheirurus Tarquinius Billings, Proc. Portland Soc. Nat. Hist., 1, 1863, p. 121,pl. 3, fig. 22.Ceraurus tarquinius Miller, N. A. Geol. Pal., 1889, p. 538 (gen. ref.).^?'^Hiiteaves,Ann. Rep. Geol. Surv. Canada, n. 8., 14, App. F, 1904, p. 59; Geol. Surv.Canada, Pal. Foss., 3, pt. 4, 190G, p. 267.Silurian: Port Daniel, Bay of Chaleur, Quebec; Masardis, Maine.Cheirurus vulcanus Billings. See PseudosphEerexochus vukanu.s and Nieszkow-fikia billing.si.OniASTOCLONELLA Rauff. Genotype: C. headi Rauff.Chiastoclonolla Rauff, Palseontographica, 41, 1895, p. 244.Chiastoclonella headi Rauff.Chiastoclonella Headi Rauff, Pateontographica, 41, 1895, p. 244, figs. 98-102, p.117, figs. 5-7; pl. 18, fig. 1 (pis. in vol. 40).Niagaran (Brownsport) : Decatur County, Tennessee.CHICAGOCRINUS Weller. Genotype: C. ornatus Wellcr.CMcagocrinus Woller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt, 1, 1900, p.126, fig. 48.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 193.Chicagocrinus inornatus Weller.Chicagocrinus inornatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 1, 1900, p. 128, pl. 7, figs. 10-12.Niagaran (Racine): Joliet, Illinois.Chicagocrinus ornatus Weller.Chicagocrinus ornatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 1, 1900, p. 127, pl. 7, fig. 9.Niagaran (Racine): Bridgeport, Illinois.CHILOPORELLA Ulrich. Genotype: Fistulipora flabellala Ulrich.CheiloporcUa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 157.Chiloporella Miller, N. A. Geol. Pal., 1889, p. 297.?Ulrich, Geol. Surv. Illinois, 8,1890, p. 381.?Simpson, 14th Ann. Rep. State Geologist New York for1894, 1897, p. 565.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173,1900, p. 23.?(lumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 742.Chiloporelia flabellata (Ulrich).Fistulipora flabellata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 28, pl. 7,figs. 26, 261).Chiloporelia flabellata Ulrich, Geol. Surv. Illinois, 8, 1890, p. 381, pl. 39, figs.5, 5b.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 802,pl. 11, figs. 1, la; pl. 12, figs. 1, lb.Chiloporelia nicholsoni (not Ceramopora nicholsoni James) Nickles and Bassler,Bull. U. S. Geol. Surv., 173, 1900, p. 207.Maysville (Conyville) : Cincinnati, Ohio, and vicinity.Hoiotype and plcsiotpye.?Cat. No. 44110, U.S.N.M.Chiloporella nicholsoni Nickles and Bassler. See Chiloporelia flabellata. 216 BULLETIN 92, FNITED STATES NATIONAL MUSEUM.CHILOTRTPA Ulrich. Genotype: Chilotrypa hispida Ulrich.Cheilotrypa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1884, 7, p. 49.Chilotrypa Miller, N. A. Geol. Pal., 1889, p. 297.?Ulrich, Geol. Surv. Illinois, 8,1890, p. 382; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 269.?Simpson,14th Ann. Rep. State Geol. New York for 1894, 1897, p. 554.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, p. 26.?Grabau, Bull. New YorkState Mus., 45, 1901, p. 163; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 163.?B.-ssler, Bull. U. S. Geol. Surv., 292, 1906, p. 24.?Grabau and Shimer, N. A.Index Fossils, 1, 1907, p. 125.?Bassler, Zittel-Eastman Text)). Pal., 1913, p.330.?Ulrich and Bassler, Marj-land Geol. Surv., Low. Dev., 1913, p. 267.Chilotrypa clrce (Billings).Helopora Circe Billings, Cat. Sil. Foss. Anticosti, 1886, p. 39.Anticostian (Jupiter River): Two miles east of Jupiter River, etc., Anticosti.Chilotrypa? coalescens Nickles and Bassler. See Chilotrypa ostiolala.Chilotrypa micropora Ulrich and Bassler.Chilotrypa micropora Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913,p. 268, pi. 41, figs. 9-12.Helderbergian (Keyser): Keyser, West Virginia.CotTjpes.?C&t. No. 53657, U.S.N.M.Chilotrypa ostiolata (Hall).Trematopora ostiolatii Hall, Pal. New York, 2, 1852, p. 152, pi. 40A, figs. 5a-m. ? Nicholson, Pal. Prov. Onta.rio, 1875, p. 60, fig. 26.Cheilotrypa ostiolata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, pi. 3,figs. 7, 7a.Chilotrypa ostiolata Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897,pi. 21, figs. 1, 2.?Grabau, Bull. New York State Mus., 45, l901, p. 164, fig. 60;Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 164, fig. 60.?Bassler, Bull. U. S.Geol. Surv., 292, 1906, pp. 24, 25, pi. 8, figs. 11-15; pi. 9, figs. 1-4.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 125, figs. 184a-b.Trematopora coalescens Hall, Pal. New York, 2, 1852, p. 150, pi. 40A, figs. 2a, b.Chilotrypa? coalescens Nicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.207.Clinton: Lockport, etc.. New York; Ontario (Rochester); Osgood, Indiana(Osgood).Plesiotypes.?Cat. Nos. 43278, 44117, U.S.N.M.Chilotrypa varia (Hall).Trematopora varia Hall, 28th Ann. Rep. Now York State Mus., doc. ed., 1876,pi. 10, figs. 15-23; mus. ed., 1879, p. Ill, pi. 10, figs. 15-23; 11th Ann. Rep.Indiana Geol. Nat. Hist., 1882, p. 232, pi. 9, figs. 15-23.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1890, p. 1202, figs.Diamesopora varia Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467.Chilotrypa varia Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 208.Niagaran (Waldron): Waldron, Indiana.Chilotrypa variolata (Hall).Trematopora variolat^i Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876,pi. 11, figs. 9, 10; mus. ed., 1879, p. 113, pi. 9, figs. 9, 10; 11th Ann. Rep.Indiana Geol. Nat. Hist., 1882, p. 234, pi. 10, figs. 9, 10.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1890, p. 1203, figs.Chilotrypa variolata Nicklesand Bassler, Bull. IT. S. Geol. Surv., 173, 1900, p. 208.Niagaran (Waldron): Waldron, Indiana. BIBLIOGBAPHIC LIST OF GENERA AND SPECIES. 217Chirocrinus Jaekel. See Cheirocrimis Eichwald.CmRocRiNus LoGANi Jaekel. See Glyptocyatites logani.Chirospongta Miller. See Pattersonia Miller.Chirospongia faberi Miller. See Leptopoterion mammiferum.Chtrospongia wenti Miller. See Pattersonia anrita.Chiton canadensis Billings. See Priscochiton canadake Huron; Drift, Ann Arbor, Michigan.Plesiotype.?G&t. No. 54239, U.S.N.M.84243??Bull. 92?15 15 226 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CiiATHKODicTYON FRANKLiNENSE Ami. See Actinostroma franklinense.Clathrodictyon ostlolatuin (Nicholson).Stromatopora ostiolata Nicholson, Ann. Mag. Nat. Hist., 4th ser., 12, 1873, p. 90, pi.4, fig. la; Pal. Prov. Ontario, 1874, pi. 1, fig. 1, la; pt. 2, 1875, p. 63.?Nicholson and Murie, Jour. Linn. Soc. London, Zool., 14, 1878, p. 219, pi. 2,figs. 1, 2.?Nicholson, Ann. Mag. Nat. Hist., 4th ser., 12, 1890, pi. 5, fig. la.Clathrodictyon (Stromatopora) ostiolatum Nicholson, Mon. British Strom., pt. 1,1886, p. 14.Clathrodictyon ostiolatum Nicholson, Ann. Mag. Nat. Hist., 5th ser., 19, 1887,p. 11, pi. 3, figs. 1-3.?Whiteaves, Pal. Foss., 3, pt. 2, 1895, p. 52; Can. Rec.Sci., 7, 1896, p. 135.?Ruedemann, Mem. New York State Mus., 5, 1903, p. 37,pi. 1, figs. 10-12.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 41.?Whiteaves, Pal. Foss., 3, pt. 4, 1906, p. 328.?Parks, Univ. Toronto Studies,Geol. Ser., No. 4, 1907, p. 12, pi. 2, figs. 1-2; pi. 5, figs. 7, 8; No. 5, 1908, p.26.?Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 87, pi. 8, fig. 6;pi. 13, fig. 1; pi. 16, fig. 18.Niagaran: Ontaiioand Shelby and Rochester, New York (Guelph); Owen Soundand Manitoulin Island.Upper Monroan (Anderdon) : Detroit River, Canada.Clathrodictyon rectum Parks.Clathrodictyon rectum Parks, Univ. Toronto Studies, Geol. Ser., No. 5, 1908,p. 28, pi. 14, figs. 5, 7.Niagaran (Louisville): Louisville. Kentucky.Clathrodictyon striatellum (D'Orbigny).Stromatopora concentrica Lonsdale, Sil. Syst., 1839, p. 680, pi. 15, fig. 31.Stromatopora striatella D'Orbigny, Prod. Pal., 1, 1850, p. 51.?Nicholson andHinde, Canadian Jour., n. s., 14, 1874, p. 145.?Nicholson, Rep. Pal. Prov.Ontario, pt. 2, 1875, p. 49.?Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883,p. 540.?Whiteaves, Canadian Rec. Sci., 7, 1896, p. 144.Stromatopora mammillata Schmidt, Sil. Form von Esthland, 1858, p. 232.?VonRosen, Ueber die Natur. der Strom., 1867, p. 71, pi. 8, figs. 1-5.?Roemer,Leth. Geog., pt. 1, Leth. Pal., 1, 1883, p. 531, fig. 125.Coenostoma botryoideum Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, p. 59,pi. 6, figs. 13-13b; Trans. Acad. Sci. St. Louis, 4, 1884, p. 600, pi. 6, figs.13-13b.Clathrodictyon striatellum Nicholson, Ann. Mag. Nat. Hist., 5th ser., 19, 1887, p.6, pi. 1, figs. 9, 10; Mon. British Strom., 1886, p. 156, pi. 1, fig. 1, pi. 5, fig. 3;pi. 19, figs. 6-12.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 40, fig.61b.?Parks, Univ. Toronto Studies, Geol. Ser., No. 4, 1907, p. 14, pi. 1, figs.3, 4; pi. 6, fig. 8; No. 5, 1908, p. 25; No. 6, 1909, p. 28.Silurian: England, Gotland, and Esthonia.Niagaran: Guelph, Hamilton, Owen Sound, islands of Lake Huron, Southamp-ton Island, Hudson Bay, etc., Canada.Clathrodictyon variolare (Von Rosen).Stromatopora variolaris Von Rosen, Ueber die Natur der Stromatoporen, 1867,p. 61, pi. 2, figs. 2-5.Clathrodictyon variolare Nicholson, Ann. Mag. Nat. Hist., 5th ser., 7, 1887, p. 4,pi. 1, figs. 4-6; Mon. British Strom., 1892, p. 150, pi. 18, figs. 1-5, pi. 17,fig. 14.?Whiteaves, Canadian Rec. Sci., 7, 1897, p. 130.?Parks, Univ.Toronto Studies, Geol. Ser., No. 5, 1908, p. 19, pi. 7, fig. 2, pi. 8. figs. 1, 9.?1, 9.?Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 89, pi. 9, figs. 1, 2. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 227Clathrodictyon varlolare?Continued.Niagaran: Mann Island, Lake Temiscaming, Manitoulin Island, DrummondIsland, and the north shore of Lake Micliigan.Upper Monroan (Anderdon): Near Amherstburg, Ontario.Plesiotype.?Cat. No. 36825, TJ.S.N.M.Clathrodictyon veslculosum Nicholson and Murie.Stromatopora striatella McCoy, British Pal. Foss., 1851, p. 12.Clathrodictyon vesiculosum Nicholson, Ann. Mag. Nat. Hist., 5th ser., 19, 1877,p. 1, figs. 1-3.?Nicholson and Murie, Jour. Linn. Soc. Zool., 14, 1878, p. 220,pi. 2, figs. 11-13, p. 216.?Nicholson and Etheridge, Mon. Sil. Foss. Girvan,1880, p. 238, pi. 19, fig. 2.?Nicholson, Mon. British Strom., 1892, p. 147,pi. 17, figs. 10-13; pi. 18, fig. 12.?Whiteaves, Can. Rec. Sci., 7, 1896, p. 134.?Grabau and Shimer, N. A. Index P'ossils, 1, 1906; p. 40, figs. 61a, 62, 63.?Parks, Univ. Toronto Studies, Geol. Ser., No. 5, 1908, p. 14, pi. 7, figs. 1, 6;pi. 8, figs. 3-5; No. 6, 1909, p. 28.?Savage, Bull. Geol. Sarv. UUnois, 23,1913, p. 68, pi. 3, fig. 8.Stromatopora concentrica Spencer, Bull. Mus. Univ. Missouri, 1, 1882, p. 45.Silurian: England and Scotland; Ontario, Michigan, New York, Iowa, Ohio,Illinois, Missouri, and Anticosti.Clathrodictyon vesiculosum astrodistans Parks.Clathrodictyon vesiculosum var. astrodistans Parks, Univ. Toronto Studies, GeoLSer., No. 5, 1908, p. 19.Niagaran: Drummond Island, Lake Huron.Cotypes.?Cat. No. 36925, U.S.N.M.Clathrodictyon vesiculosum minutum (Rominger).Stromatopora minutum Rominger (part), Proc. Acad. Nat. Sci. Philadelphia,1886, p. 49.Clathrodictyon vesiculosum var. minutum Parks, Univ. Toronto Studies, Geol.Ser., No. 5, 1908, p. 19, pi. 7, fig. 6; pi. 8, fig. 5; No. 6, 1909, p. 29.Niagaran: Lake Temiscaming and Southampton Island, Hudson Bay, Canada.Clathrograptus geinitzianus Lapworth. See Retiograptus geinitzianus.CLATHROPORA Hall. Genotype: Clathropora frondosa Hall.Clathropora Hall, Amer. Jour. Sci. Arts, 2d. eer., 11, 1851, p. 400; Pal., New York,2,1852, p. 159.?Pictet, Traite de Paleontologie, 2d ed., 4, 1857, p. 170.?Nicholson, Geol. Mag., dec. 2, 1, 1874, p. 124; Pal. Prov. Ontario, 1874, p.111.?Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 152.?Vine, Rep.5l8t Meeting Brit. Assoc. Adv. Sci., 1882, p. 166.?Ulrich, Jour. CincinnatiSoc. Nat. Hist., 7, 1884, p. 39.?Foerste, Bull. Sci. Lab. Denison Univ., 2,1884, p. 153.?Miller, N. A. Geol. Pal., 1889, p. 297.?Ulrich, Geol. Surv.IlUnois, 8, 1890, p. 392; Zittel'a Textb. Pal. (Engl, ed.), 1896, p. 279.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 543.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 45.?Grabau, Bull.Buffalo Soc. Nat. Sci., 7, 1901, p. 173; Bull. New York State Mus., 45, 1901,p. 173.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 56.?Grabau and Shi-mer, N. A. Index Fossils, 1, 1907, p. 156.Clathropora alclcornls Hall.Clathropora alcicornis Hall, Pal. New York, 2, 1852, p. 159, pi. 40B, figs. 4a-c. ? Grabau, Bull. New York State Mus., 45, 1901, p. 174, fig. 76; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 174, fig. 76.?Bassler, Bull. U. S. Geol. Surv., 292,1906, pp. 56, 57, pi. 20, figs. 1-4.Clinton (Rochester) : Lockport, New York.Figured section of holotype.?Cat. No. 35552, U.S.N.M. 228 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Clathropora clintonensis Hall and Whitfield. See Clathropora frondosa clin-tonensis.Clathropora flabellata Hall. See Graptodictya proava.Clathropora frondosa Hall.Clathropora frondoRa Hall, Pal. New York, 2, 1852, p. 160, pi. 40B, figs. 5a-e.?Nicholson and Hinde, Canadian Jour., n. b., 14, 1874, p. 139.?Nicholson,Pal. Prov. Ontario, 1875, p. 59.?(Van Cleve) ^Tiite, 11th Ann. Rep.Indiana Geol. Nat. Hist., 1882, p. 385, pi. 55, fig. 3.?Miller, N. A. Geol.Pal., 1889, p. 297, fig. 467.?Lesley, Geol. Surv. Pennsylvania, Eep. P 4,1889, p. 133, fig.?Simpson, 14th Ann. Rep. State Geol. New York for 1894,1897, fig. 104 (p. 544).?Grabau, Bull. New York State Mus., 45, 1901, p. 174,fig. 75; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 173, fig. 75.?Bassler, Bull.U. S. Geol. Surv., 292, p. 56, pi. 20, figs. 5-11; pi. 21, figs. 6-7.?Foerste,Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 11.Clinton: Lockport, Clinton, etc., New York; Grimsby, etc., Ontario (Rochester);Lewis County, Kentucky (West Union).Plesiotypes.?Cat. No. 44146, U.S.N.M.Clathropora frondosa Foerste (part). See Clathropora frondosa clintonensis.Clathropora frondosa clintonensis (Hall and Whitfield).Clathropora clintonensis Hall and Whitfield, Pal. Ohio, 2, 1875, p. 113, pi. 5,fig, 7._Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 154; 3, 1888, pi. 15,fig. 4; Geol. Surv. Ohio, 7, 1895, p. 598, pi. 28, fig. 4.Clathropora frondosa Foerste Bull. Sci. Lab. Denison Univ., 2, 1887, p. 154; 3,1888, pi. 15, fig. 3; Geol. Surv. Ohio, 7, 1895, p. 598, pi. 28, fig. 3.Clathropora frondosa-clintonensis Nickles and Bassler, Bull. U. S. Geol. Surv.,173, 1900, p. 209.Upper Medinan: Dayton and Fairhaven, Ohio; Kentucky; Tennessee (Brass-field); Dundas, etc., Ontario (Cataract).Clathropora frondosa intermedia (Nicholson and Hinde).Clathropora intermedia Nicholson and Hinde, Canadian Jour., n. s., 14, 1874,p. 140, fig. 5.?Nicholson, Pal. Prov. Ontario, 1875, p. 59, figs. 29a, b.Clathropora frondosa intermedia Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 56,pi. 20, figs. 0-8.Clinton (Rochester): Thorold and Hamilton, Ontario.Clathropora glomerata Whitfield and Hovey. See Stictopora? glomerata.Clathropora? gracilis Spencer. Not recognizable.Clathropora? gracilis Spencer, Trans. Acad. Sci. St. Loids, 4, 1884, p. G04, pi. 7,fig. 4; Bull. Mus. State Univ. Missouri, 1, 1884, p. 54, pi. 7, fig. 4.Niagaran: Hamilton, Ontario.Clathropora intermedia Nicholson and Hinde. See Clathropora frondosaintermedia.CLATHROSPIRA Ulrich and Scofield. Genotype: Pleurotomaria subconica Hall.Pleurotomaria (part) of numerous American and Em-opean authors.Clathrospira Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 954-1005.?Koken, Neues Jaln-b. f. Min., Geol Pal., 1, 1898, p. 19.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 948.?Grabau and Shimer, N. A.Index Fossils, 1, 1909, p. 644. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 229Clathrospira conica Ulrich and Scofield.Clathrospira conica Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1008,pi. 70, figs. 1-4.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 165.?Grabauand Shimer, N. A. Index Fossils, 1, 1909, p. 644, figs. 878d-f.Black River and Trenton: Minneapolis, Goodhue and Fillmore Counties, Minne-sota; Kentucky; Baffin Land.Mays\T.lle: Cincinnati, Ohio, and vicinity.Cotypes.?C&t. Nos. 45744, 45746, U.S.N.M.Clathrospira convexa Ulrich and Scofield.Clathrospira convexa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p-1007, pi. 69, fig. 51.Black River (Platte\ille): Calhoun County, Illinois.Holotype.?C&t. No. 45747, U.S.N.M.Clathrospira deiopeia (Billings).Pleurotomaria Deiopeia Billings, Pal. Foss., 1, Geol. Siu-v. Canada, 1865, p. 155. ? Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 75, pi. 12, figs.1,1a.Clathrospira Deiopeia (Ulrich) Whiteaves, Geol. Surv. Canada, Pal. Foss. 3, pt. 4,1906, p. 332 (gen. ref.).Niagaran (Guelph): Flora, Ontario.Clathrospira subconica (Hall).Pleurotomaria subconica Hall, Pal. New York, 1, 1847, p. 174, pi. 37, figs. 8a-e;p. 304, pi. 83, figs. 3a-e.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 160,pi. 17, fig. 9a, b.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 819, fig. 606.?Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 39, fig. 1.?Billings, Geol. Canada,Geol. Siu-v. Canada, 1863, p. 180, fig. 174; Cat. Sil. Foss. Anticosti, Geol. Surv.Canada, 1866, p. 17.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 317.?Wlutfield, Geol. Wisconsin, 4, 1882, p. 216, pi. 6, fig. 1.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 157.?Whiteaves, Canadian Rec. Sci., 5, 1893, p. 319.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 716, figs.Clathrospira subconica Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.1006, pi. 69, figs. 47-50; pi. 70, figs. 5-6.?Ruedemann, Bull. New York StateMus., 49, 1901, p. 33.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 956, pi. 41, figs. 8, 8b.?Grabau and Shimer, N. A. Index Fossils, 1,1909, p. 644, fig. 878a-c.Black River?Richmond: Watertown, New York (Trenton); Canada; Ohio;Minnesota; Iowa; Tennessee; Anticosti; etc.Plesiotype?Cat. Nos. 45748, 46051; U.S.N.M.Clav^blastus Hambach. See Troostocrinus Shumard.Cleidophorus of authors. See Clidophorus Hall.CLP:iDOPHORtrs MAJOR Uhich. See Lyrodesma major.CLEIOCRINUS BilUngs. Genotype: C. regius BilHngs.Cleiocrinus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 276;Geol. Surv. Canada, dec. 4, 1859, p. 52, fig. 17.?Shumard, Trans. Acad.Sci. St. Louis, 2, 1866, p. 359.?Zittel, Handb. Pal., 1, 1879, p. 357.?Wach-emuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 258 (Rev.Pal., pt. 1, p. 35, 147); ibid., 1886, p. 76 (Rev. Pal., pt. 3, p. 152).?Miller,N. A. Geol. Pal., 1889, p. 231.?Bather, Treatise on Zool., pt. 3, Echinoderma,London, 1900, p. 191.?Springer, Amer. Geology, 30, 1902, p. 94; Mem. Mus.Comp. Zool. Harvard, 25, No. 2, 1905, p. 93.?Wood, Bull. U. S. Nat. Mus., 64,1909, p. 100.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 562.?Springer, Zittel-Eastman Textb. Pal., 2d ed.. 1913, p. 186. 230 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CLEIOCRINUS?Continued . Cliocrinus Hudson, BuU. New York State Mus., 149, 1911, p. 211.Campauulites Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419; Proc. Amer.Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).?Shumard, Trans. Acad. Sci. St.Louis, 2, 1866, p. 356.?Miller, N. A. Geol. Pal., 1889, p. 230.?Bather.Treatise on Zool., 3, Echinoderma, 1900, p. 202 (Genotype C. tessellatusTroost.)Cleiocrinus billingsi Ford and Dwight.Cleiocrinus billingsi Ford and Dwight, Amer. Jour. Sci. Arts, 3d ser., 31, 1886, p.252, pi. 7, fig. 5.Middle Ordovician: Canaan, New York.Observation.?Not recognized. Founded on fragment of a column.Cleiocrinus grandis Billings.Cleiocrinus grandis Billings, Geol. Surv. Canada, dec. 4, 1859, p. 54, pi. 5, figs.2a-2c.?Meek, Amer. Jour. Sci. Arts, 3d ser., 2, 1871, p, 301.Trenton: Ottawa, Ontario.Observation.?Based on root end of column.Cleiocrinus laevis Springer. See Cleiocrinus tessellatus.Cleiocrinus libanus Safford. See Cleiocrinus tessellatus.Cleiocrinus magnificus Billings.Cleiocrinus magnificus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 54, pi. 5,fig. 3.?Dwight, Proc. Poughkeepsie Acad. Nat. Sci., 1880, p. 19 (loc. occ). ? Springer, Mem. Mus. Comp. Zool., Harvard, 25, 1905, p. Ill, pi. 1, figs. 11, 12.Trenton: Ottawa, Ontario.Observation.?Based on column only.Cleiocrinus perforatus (Hudson).Cliocrinus perforatus Hudson, Bull. New York State Mus., 149, 1911, p. 211,figs. 2, 3.Chazyan (Valcour): Valcour Island, Lake Champlain, New York.Cleiocrinus regius Billings.Cleiocrinus regius Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,p. 277; Geol. Surv. Canada, dec. 4, 1859, p. 53, pi. 5, figs, la-lg.?Miller,N. A. Geol. Pal., 1889, p. 232, fig. 264.?Springer, Mem. Mus. Comp. Zool.,Harvard, 25, 1905, p. 110, pi. 1, figs. 1-10.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 562.?Springer, Mem. Geol. Surv. Canada, 15P, 1911, p.41, pi. 5, figs. 7-9.Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Cleiocrinus sculptus Springer.Cleiocrinus sculptus Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 44, pi. 5,figs. lOa-f.Trenton (Curdsville): Mercer County, Kentucky.Cleiocrinus tessellatus (Troost).Campauulites tesselatus Troost, Amer. Jour. Sci. and Arts, 2d ser., 8, 1849, p. 419(nom. nud.); Proc. Amer. Assoc. Adv. Sci., 1850, p. 60.Cleiocrinus tessellatus (Troost) Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 100, pi.7, fig. 11. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 231Cleiocrinus tessellatus?Continued.Cleiocrinus Libanus Safford, Geol. Tennessee, p. 285 (not defined).Cleiocrinus laevis Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 44, pi. 5,figs, lla-c.Stones River (Lebanon): Duck River near Columbia, and Shelbyville, Tennessee.Holotype.?G&t. No. 39910, U.S.N.M.Cleionychia Ulrich. See Clionychia Ulricli.Cleionychia amygdalina Ulrich. See Ambonycliia amygdalina.Cleionychia attenuata Ulrich. See Clionychia lamellosa.Cleionychia? nitida Ulrich. See Mytilarca nitida.CLELANDIA Cossmann. Genotype: Harrisia parabola Cleland.Harrisia Cleland, Bull. Amer. Pal., 3, 1900, p. 127 (255).Clelandia (Harrisia preoccupied) Cossmann, Revue Critique de Paleozoologie, 6,1902, p. 52.Clelandia parabola (Cleland).Harrisia parabola Cleland, Bull. Amer. Pal., 3, 1900, p. 127 (255), pi. 16, figs. 1-3;4, 1903, p. 11, pi. 3, figs. 4, 5.Canadian (Tribes Hill) : Near Fort Hunter, New York.Clematocrinus parvus Jaekel. See Cordylocrinus plumosus.Clematocrinus plumosus Jaekel. See Cordylocrinus plumosus.Clematograptus multibrachiatus Lapworth. See Amphigraptus multifasciatua.Clematograptus multifasciatus Hopkinson. See Amphigraptus multifaciatus.CLIDOCHIRUS AngeHn. Genotype: C. pyrum Angelin.Clidochirus Angelin, Icon. Crin. Suec, 1878, p. 12.?Wachsmuth and Springer,Proc. Nat. Acad. Philadelphia, Rev. Pal., 1, 1879, p. 89.?Zittel, Handb.Pal., 1, 1879, p. 355.?Bather, Lankester's Treatise on Zool., 3, 1900, p. 188.?Springer, Amer. Geol., 30, 1902, p. 94; Jour. Geol., 14, 1906, pp. 479, 516;Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 204; Men. Crin. Flex., Smiths.Inst, (in press).Clidochirus americanus Springer.Clidochirus americanus Springer, Mon. Crin. Flex., Smiths. Inst, (in press).Upper Medinan (Brassfield): Dayton, Ohio.Clidochirus keyseronsis Springer.Clidochirus keyserensis Springer, Mon. Crin. Flex., Smiths. Inst, (in press).Ilelderbergian (Keyser): Keyser, West Virginia.CLIDOPHORUS Hall. Genotype: Nuculites planulata Conrad.Cleidophorus Hall, Pal. New York, 1, 1847, p. 300, footnote.?Pictet, Traite dePal., 2d ed., 3, 1855, p. 534.?Meek and Hayden, Pal. Up. Missouri, Smiths.Cont. Knowl., 172, 14, 1865, p. 35.?Miller, Cincinnati Quart. Jour. Sci., 1,1874, p. 222.?Waagen, Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1,1881, p. 224.?Zittel, Handb. Pal., 2, 1881, p. 53.?Dall, Zittel-EastmanTextb. Pal., 1, 1900, p. 363; 2d ed., 1913, p. 440.Clidophorua McCoy, Brit. Pal. Rocks and Foss., 1854, p. 273.?Hall, 24th Rep.New York State Cab. Nat. Hist., 1872, p. 228 (extr. 1871, p. 5).?Miller, N. A.Geol. Pal., 1889, p. 471.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 606.?Cumings, 32d Ann. Rep. Geol. Nat. Res. Indiana, 1908, p. 979.Nuculites Grabau and Shimer (part), N. A. Index Fossils, 1, 1909 p. 397. 232 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM.Clidophorus brazilianiis Clarke.Clidophorus brazilianus Clarke, Archives Mus. Nac. Rio de Janeiro, 10, author'sEngl, ed., 1900, p. 18, pi. 2, figs. 17-19.Silurian: Rio Trombetas, Brazil.Clidophorus chicagoensis (Miller).Clidophorus chicagoensis Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1881, p.314, pi. 8, figs. 2, 2a.Niagaran (Racine) : Bridgeport and Cicero, Illinois.Clidophorus concentricus Hall.Clidophorus concentricus Hall, Canadian Nat. Geol., 5, 18G0, p. 149, fig. 7. ? Dawson, Acadian Geol., Suppl. Chap., 1860, p. 68, fig. 53; 2d ed., 1868, p. 600,fig. 204.Silurian: Arisaig, Nova Scotia.Clidophorus consuetus Ulrich.Clidophorus consuetus Ulrich, 19th Ann. Rep. Geol. and Nat. Hist. Surv. Minne-sota, 1892, p. 223, fig. 9; Geol. Minnesota, 3, pt. 2, 1894, p. 606, pi. 37, figs.32, 33.Trenton (Prosser): Near Wykoff, Minnesota.Holotype.?C&t. No. 46110, U.S.N.M.Clidophorus cuneatus Hall.Clidophorus cuneatus Hall, Canadian Nat. Geo!., 5, 1860, p. 148.?Dawson, Aca-dian Geol., 2d ed., 18C8, p. 600.Silurian: Arisaig, Nova Scotia.Clidophorus ellipticus (Ulrich).Cleidophorus ellipticus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 25,pi. 7, fig. 22.Eden (Economy) : Covington, Kentucky.Eolotype.?CAt. No. 46111, V.S.N.U.Clidophorus elongatus Hall.Clidophorus elongatus Hall, Canadian Nat. Geol., 5, 1860, p. 150, fig. 9.?Dawson,Acadian Geol., Suppl. Chap., 1860, p. 68, fig. 55; 2d ed., 1868, p. 601, fig. 206.Silurian : Arisaig, Nova Scotia.Clidophorus erectus Hall.Clidophorus erectus Hall, Canadian Nat. Geol., 5, 1860, p. 149, fig. 8.?Dawson,Acadian Geol., Suppl. Chap., 1860, p. 68, fig. 54; 2d. ed., 1868, p. 600, fig.295.Silurian: Arisaig, Nova Scotia.Clidophorus faberl Miller.Clidophorus faberi Miller, N. A. Geol. Pal., 1889, p. 471, fig. 795.Richmond: Near Versailles, Indiana; Butler County, Ohio.Clidophorus fabula (Hall).Clidophorus (Nucula) fabula Hall, Amer. Jour. Sci. Arts, 43, 1845, p. 295.Clidophorus (Nuculites?) fabula Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 138, pi.11, figs. 10a, b.Cleidophorus fabula Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 222.Clidophorus fabula Miller, N. A. Geol. Pal., 1889, p. 471, fig. 796.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 996, pi. 44, figs. 6, 6a.Eden?Richmond: Cincinnati, etc., Ohio; Indiana; Kentucky; Tennessee.Observation.?C. fabula is possibly only a dwarfed form of C. neglectus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 233CUdophorus ferrugineus (Foerste).Nuculites (Cleidophorus) ferrugiiieum Foerste, Gcol. Siirv. Ohio, Pal., 7, p. 564,pi. 37, figs. 2a, b.Upper Medinan (Brassfield) : Todds Fork, Clinton County, Ohio.Clidophorus foerstel Ruedemann.Clidophorus foerstei Ruedemann, Bull. New York State Mus., 162, 1912, pi. 5,figs. 15, 16.Trenton (Snake Hill): Snake Hill, Saratoga County, New York.Clidophorus mcchesneyanus "Winchell and Marcy. See Matheria recta.Clidophorus neglectus Hall.Clidophorus neglectus Hall, Geol. Surv. Wisconsin, 1, 1862, p. 55.?Ulrich, Geol.Minnesota, 3, pt. 2, 1894, p. 607, pi. 42, figs. 20-25.?Weller, Geol. Surv. NewJersey, Pal., 3, 1903, p. 165, pi. 2, fig. 16.Nuculites neglectus Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 397,fig. 508a-c.Richmond (Maquoketa): Lafayette County, Wisconsin; Illinois; Iowa; Minnesota;and Missouri; (?)Trenton of New Jersey.Clidophorus nuculiformis Hall.Clidophorus nuculiformis Hall, Canadian Nat. Geol., 5, 1860, p. 150.?Dawson,Acadian Geol., 2d ed., 1868, p. 601,Silurian: Arisaig, Nova Scotia.Clidophorus obscurus Raymond.Clidophorus obscurus Raymond, Amer. Jour. Sci., 20, 1905, p. 372.Chazyan: (Crown Point) Sloop Bay, Valcour Island, New York.Clidophorus planulatus (Conrad).Nuculites planulata Conrad, Sth Ann. Rep. New York Geol. Surv., 1841, p. 50. ? Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 397.Nuculites scitula Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 399, fig. 2.Periploma planulata D'Orbigny, Prodr. de. Pal., 1, 1849, p. 11 (gen. ref.).Emmons, Amer. Geology, 1, pt. 2, 1855, p. 172, pi. 17, fig. 17; Manual Geology,1860, p. 101, figs. 91, 92.Cleidophorus planulatus Hall, Pal., New York, 1, 1847, p. 300, pi. 82, figs. 9a-e.?Pictet, Traits de Pal., 1855, 2d ed., 3, p. 534, pi. 79, fig. 18.?Nicholson, Rep.Pal. Prov. Ontario, pt. 2, 1875, p. 36, fig. lie.?Lesley, Geol. Surv. Pennsyl-vania, Rep. P 4, 1889, p. 133, fig.Clidophorus planulatus Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 302.Eden and Maysville: Pulaski, etc.. New York (Pulaski); Pennsylvania; Ohio; etc.Clidophorus praevolutus Foerste.Clidophorus prtevolutus Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 303,pi. 1, figs. 6, 12.Cincinnatian (Pulaski): Richelieu River, near Chambly, Quebec.Clidophorus semiradiatus Ilall.Clidophorus semiradiatus Hall, Canadian Nat. Geol., 5, 1860, p. 150.?Dawson,Acad. Geol., 2d ed., 1808, p. 601.Silurian: Arisaig, Nova Scotia.Clidophorus subovatus Hall.Clidophorus subovatus Hall, Canadian Nat. Geol., 5, 1860, p. 151.?Dawson,Acad. Geol., 2d ed., 1868, p. 602..Silurian: Arisaig, Nova Scotia. 234 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Clldophorus ventricosus Ruedemann.Clidophorus ventricosus Ruedemann, Bull. New York State Mus., 162, 1912, pi. 5,figs. 11-14.Trenton (Snake Hill): Snake Hill, Saratoga County, New York.Cliftonia Foerste. See Triplecia subgenus Cliftonia.Climacograpsus antennarius Nicholson. See Cryptograptus antennarius.CLIMACOGRAPTUS Hall. Genotype: Graptolithus bicornis Hall.Climacograptus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 111.?Carruthers, Geol.Mag., 5, 1868, p. 73, 131.?Hall, 20th Rep.New York State Cab. Nat. Hist., 1868,p. 217.?Hopkinson, Geol. Mag., 7, 1870, p. 354.?Zittel, Handb. Pal., 1. 1879,p. 300.?Tullberg, Sveriges Geol. Unders., Ser. C, No. 55, 1883, p. 13, 14.?Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 561.?Miller, N. A. Geol.Pal., 1889, p. 178.?James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892,p. 158.?Koken, Die Leitfossilien, Leipzig, 1896, p. 329.?Wiman, Bull.Geol. Inst., Univ. Upsala, 2, pt. 2, 1896, p. 264; Nat. Sci., 9, 1896, p.188.?Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief.,1897, p. 608.?Gurich, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 13,1900, p. 333.?Zittel-Eastman Textb. Pal., 1, 1900, p. 119.?Ruedemann,Mem. New York State Mus., 7, 1904, p. 729; 11, pt. 2, 1908, pp. 400^06.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 31.?Ruedemann, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 130.Climacograpsus Nicholson, Ann. Mag. Nat. Hist., 4th ser., 6, 1870, p. 370; Mon.British Grapt., 1872, p. 117.Climacograptus antennarius Hall. See Cryptograptus antennarius.Climacograptus antiquus Lapworth.Climacograptus antiquus Lapworth, Geol. Mag., 10, 1873, p. 134 (nom. nud.);Trans. Roy. Soc. Canada, 5, sec. 4, 1886, p. 178.?Gurley, Jour. Geol., 6,1896, pp. 74, 93, 207.?Elles and Wood, Mon. British Grapt., pt. 5, 1906, pp.199, 200, fig. 130; pi. 27, fig. 4a-e.?Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, pp. 239-441, pi. 28, figs. 28, 29.Climacograptus cf . antiquus Lapworth, Rep. Geol. Surv. Canada, 3, pt. 1, 1889,p. 95B.Climacograptus cselatus Lapworth, Cat.West. Scotland Foss., 1876, p. 6, pi. 1, fig. 56;Ann. Rep. and Proc. Belfast Nat. Field Club, 1, pt. 4, 1877, p. 130, pi. 6,fig. 39; Science, 9, 1887, p. 320.Middle Ordovician (Glenkiln): Great Britain.Chazyan (Normanskill): Canada, Nevada, Arkansas, Oklahoma, etc.Plesiotypes?Cat. Nos. 54285, 54339, 54248, U.S.N.MClimacograptus bicornis (Hall).Graptolithus bicornis Hall, Pal. New York, 1, 1847, p. 268, pi. 73, figs. 2a-s.?Ford, Amer. Jour. Sci., 3d ser., 28, 1884, p. 206.Diplograptus bicornis Geinitz, Die Graptolithen, 1852, p. 24.?McCoy, Ann. Mag.Nat. Hist., 9, 1862, p. 139.Diplograpsus bicornis Nicholson, Ann. Mag. Nat. Hist., 1, 1868, p. 56, pi. 3,figs. 8-10.Diplograptus (Climacograptus) bicornis McCoy, Prodr. Pal. Victoria, dec. 1, 1874,p. 12, pi. 1, fig. 8.Climacograptus (Diplograptus) bicornis Etheridge, Mem. Geol. Sun-'. GreatBritain, 2d ed., 3, 1881, p. 530, pi. IIA, fig. lb, c. I BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 235Climacograptus blcornls?Continued.Cliniacograptus bicornis Hall, Canadian Org. Rem. Geol. Surv. Canada, dec. 2,1865, p. 112, pi. A, figs, la-c?Nicholson, Ann. Mag. Nat. Hist., 6, 1870,p. 380, fig. 5; Mon. British Grapt., 1872, p. 61, figs. 29a-d.?Lapworth, Cat.West. Scotland Foss., 1876, p. 6, pi. 2, fig. 51; Rep. and Proc. Belfast Nat. FieldClub, 1, pt. 4, 1877, p. 139, pi. 6, fig. 38a.?Whitfield, U. S.Geol. Surv. West100th Merid., WTieeler's Rep. Pal., 4, 1877, p. 19.?Lapworth, Quart. Jour.Geol. Soc. London, 34, 1878, p. 250.?Linnarsson, Sver. Geol. Und., Ser. C,No. 31, 1879, p. 18.?Lapworth, Ann. Mag. Nat. Hist., 6, 1880, p. 22.?Tull-berg, Sver. Geol. Und., Ser. C, No. 41, 1880; No. 50, 1882, p. 20.?Walcott,Trans. Albany Inst., 10, 1883, p. 3, (adv. sheets, 1879, p. 34).?Whitfield,Amer. Jour. Sci., 3d ser., 26, 1883, p. 380.?Lapworth, Trans. Roy. Soc.Canada, 4, 1887, 178f.?Miller, N. A. Geol. Pal., 1889, p. 178, fig. 153.?Ami,Rep. Canadian Geol. Surv., 2d ser., 3, pt. 2, 1889, p. 117K.?Gurley, Ann.Rep. Geol. Surv. Arkansas, 3, 1892, p. 410.?James, Jour. Cincinnati Soc.Nat. Hist., 14, 1892, pt. 2, p. 159.?Ami, Canadian Rec. Sci., 5, 1893, pp.237, 239.?Gurley, Jour. Geol., 4, 1896, p. 297.?T. S. Hall, Proc. Roy. Soc.Victoria, 9, 1897, p. 184.?Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt.3, 1897, p. 148 (loc. occ.).?Roemer and Freeh, Leth. Geog., 1 Theil, Leth.Pal., 1, 1897; pp. 610, 611, fig. 174.?Freeh, Leth. Geog., 1 Theil, Leth. Pal.,1, 3 Lief, 1897, p. 553, fig. 131.?T. S. Hall, Geol. Mag., n. s., dec. 4, 6,1899, p. 445.?Ruedemann, Bull. New York State Mus., 42, 1901, p. 496ff.?Clark, Geol. Mag., 4th ser., 9, 1902, p. 498.?T. S. Hall, Geol. Surv. Victoria,Rec, 1, pt. 1, 1902, p. 34.?Dale, Bull. U. S. Geol. Surv., 242, 1904, p. 33.?T. S. Hall, Proc. Roy. Soc. Victoria, 18, pt. 1, 1905, p. 21.?Ami, Geol. Surv.Canada, Sum. Rep., 1904, p. 12.?T. S. Hall, Geol. Surv. Victoria, Rec, 1,pt. 4, 1906, p. 275, pi. 34, fig. 8.?Grabau and Shimer, N. A. Index Fossils, 1,1906, p. 32, figs. 50, 51a.?Files and Wood, Mon. British Grapt., pt. 5, 1906,pp. 193, 194, fig. 126, pi. 26, fig. 8a-f.?Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, p. 433-437, pi. 28, figs. 24-26, figs. 404, 405.Climacograptus bicornis var. peltifer Lapworth, Cat. West. Scotland Foss., 1876,p. 6, pi. 2, fig. 53; Rep. and Proc. Belfast Field Club, 2d ser., 1, pt. 4, 1877,p. 139, pi. 6, fig. 38b.?Gurley, Jour. Geol., 4, 1896, p. 93.Climacograptus bicornis var. tridentatiis Lapworth, Cat. West Scotland Foss.,1876, p. 6, pi. 2, fig. 52; Rep. and Proc. Belfast Field Club, 2d ser., 1, pt.4, 1877, p. 139, pi. 6, fig. 38c.?Gurley, Jour. Geol., 4, 1896, p. 93.Climacograptus bicornis var. tuberculatua Lapworth, Cat. West Scotland Foss.,1876, p. 6.Climacograptus bicornis var. longispina T. S. Hall, Geol. Surv. New South Wales,Rec, 7, pt. 2, 1902, p. 5, pi. 12, figs. 8, 9.Chazyan (Normanskill) : New York slate belt, north into Quebec and New Bnms-wick and south to Virginia and Alabama; Arkansas (Stringtown).Middle Ordovician : Great Britain, Scandinavia, Australia.Climacograptus bicornis Hall (part). See Climacograptus parvus.Climacograptus bicornis var. caudatus Ami. See Climacograptus caudatus.Climacograptus bicornis var. longispina Hall. See Climacograptus bicornis.Climacograptus bicornis var. peltifer Lapworth. See Climacograptus bicornis.Climacograptus bicornis var. tridentatus Lapworth. See Climacograptusbicornis.Climacograptus bicornis tuberculatus Nicholson. See Climacograptus bicornis. 23G BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Climacograptus c^latus Lapworth. See Climacograptus antiquus.CUmacograptus caudatus Lapworth.Climacograptus caudatus Lapwofth, Cat. West. Scotland Foss., 1876, p. 6, pi. 2,fig. 48; Rep. and Proc. Belfast Field Club, 1, pt. 4, 1877, p. 138, pi. 6, fig.34.?Linnarsson, Sver. Geol. Und. Ser. C, No. 31, 1879, p. 18.?Lapworth,Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 358; 6, p. 22.?Tullberg, Sver.Geol. Und., Ser. C, No. 50, 1882, p. 20.?Lapworth, Geol. Mag., 3d ser., 6,pi. 2, 1889.-Gurley, Hour. Geol., 4, 1896, p. 297.?Roemer and Freeh, Leth.Geog., Leth. Pal., 1, 1897, p. 614, fig. 179.?Ruedemann, Bull. New York StateMus., 42, 1901, p. 520.?Ellea and Wood, Mou. British Grapt., pt. 5, 1906,p. 202, fig. 133; pi. 27, fig. 7.?Ruedemann, Mem. New York State Mus., 11,pt. 2, 1908, pp. 438, 439, pi. 28, figs. 17, 18, fig. 406.Climacograptus bicomis var. caudatus Ami, Canadian Geol. Surv. Rep., 2d ser.,3, pt. 2, 1889, p. 116K.Middle Ordovician shales: Great Britain and Scandinavia.Trenton: Magog, Quebec (Magog); Mechanicsville, New York (Snake Hill).Climacograptus caudatus laticaulis Gurley.Climacograptus caudatus laticaulis Gurley, Jour. Geol., 4, 1896, pp. 75, 93 (nom.nud.).Trenton (Magog): Magog, Quebec.CUmacograptus caudatus posterns Ruedemann.Climacograptus caudatus mut. posterns Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, p. 51 (nom. nud.).Trenton shale of New York.Climacograptus kamptotheca Gurley.Climacograptus kamptotheca Gurley, Jour. Geol., 4, 1896, p. 76.Trenton (Magog): Magog, Quebec.Climacograptus mississippiensis Ruedemann.Climacograptus mississippiensis Ruedemann, Mem. New York State Mus., 11,pt. 2, 1908, pp. 413, 414, pi. 28, fig. 13, text fig. 367.Richmond (Sylvan): Arbuckle Mountains, Oklahoma.Eolotype and paratype.?Cat. No. 54268, U.S.N.M.Climacograptus modestus Ruedemann.Climacograptus modestus Ruedemann, Mem. New York State Mus., 11, 1908,pt. 2, pp. 432, 433, pi. 28, fig. 30, 400-403.Chazyan (Normanskill): Mount Moreno, near Hudson, and Lansingburg, NewYork; Arkansas (Stringtown).Climacograptus oligotheca Gurley.CUmacograptus oligotheca Gurley, Jour. Geol., 4, 1896, p. 76.CUmacograptus cf. oligotheca Ruedemann, Mem. New York State Mus., 11, pt. 2,1908, p. 441, pi. 28, fig. 27.Trenton: Magog, Quebec (Magog); Arkansas.Plesiotype.?Q'at. No. 54264, U.S.N.M.Climacograptus parvus Hall.CUmacograptus bicomis Hall, Pal. New York, 1, 1847, pi. 73, figs. 2e, k, o-s.CUmacograptus parvus Hall, Canadian Org. Rem., dec. 2, 1865, p. 57 (nom. nud.);20th Rep. New York State Cab. Nat. Hist., 1868, p. 224.?Walcott, Trans.Albany Inst., 10, 1883 (adv. sheets 1879, p. 34); Bull. Geol. Soc. Amer., 1, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 237Climacograptus parvus?Continued.1890, p. 339.?Roemer and Freeh, Leth. geog., Leth. Pal., 1, 1897, p. 610.?Ruedemann, Bull. New York State Mus., 42, 1901, p. 523ff.?Dale, Bull. U. S.Geol. Surv-., 242, 1904, p. 33.?Ruedemann, Mem. New York State I^lus.11, pt. 2, 1908, pp. 426-128, pi. 28, figs. 19-23, figs. 388-393.Climacograptus phyllophorus Gurley, Jour. Geol., 4, 1896, p. 77, pi. 4, figs. 4-6. ? Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 212, pi. 16, figs. 14, 15.Chazyan (Normauskill) : Glenmont, Mount Moreno, Troy, etc., New York; NewJersey.CLrMAcoGRAPTus phyllophorus Gurley. See Climacograptus parvus.Climacograptus pungens Ruedemann.Climacograptus n. sp. Ruedemann, Ann. Rep. New York State Pal., 1902, p, 571.Climacograptus pungens Ruedemann Mem. New York State Mus., 7, pt. 1, 1904,p. 730, pi. 16, figs. 14-20.Canadian: Deepkill, and Mount Moreno, New York (Deepkill, Diplograptusdentatus zone); Point Le\'is, Quebec (Levis, D. dentatus zone).Climacograptus (Mesograptus) putillus (Hall).Graptolithus putillus Hall, Geol. Surv. Canada, Org. Rem., dec. 2, 1865, pp. 27,44, pl.A, figs. 10-12a.Graptolithus (Diplograptus) putillus Hall, 20th Ann. Rep. New York State Cab.Nat. Hist., 1868, pp. 195, 211, pi. 2, figs. 10-12a; rev. ed., 1868 (1870) pp. 224,225, 226; pi. 2, figs. 10-12.?Winchell and Schuchert, Geol. Minnesota, 3,pt. 1, 1895, p 82, fig. 3.Diplograptus putillus Nicholson, Quart Jour. Geol. Soc. London, 24, 1868, p. 527,pi. 19, figs. 17, 18.?Tullberg, Sver. Geol. Unders., Ser. C, No. 50, 1882,p. 43.?Walcott, Trans. Albany Inst., 10, 1883 (adv. sheets 1879, p. 35).?Lap-worth, Proc. and Trans. Roy. Soc. Can., 4, 1886, p. 170.?Walcott, Bull. Geol.Soc. Amer., 1, 1890, p. 339.?Ami, Canadian Rec. Sci., 5, 1893, p. 244.?Gurley, Jour. Geol., 4, 1896, p. 298.?Winchell and Ulrich, Geol. Minnesota,3, pt. 2, 1897, p. 111.?Ruedemann, Bull. New York State Mus., 42, 1901, p.498.?Nickles, Jour. Cincinnati Soc. Nat. Hist., 20, 1902, p. 68.Climacograptus putillus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,pp. 415-419, pi. 28, figs. 14, 15, text figs. 368-374, 376, 377.Diplograptus (Mesograptus) putillus Ruedemann, Bull. New York State Mus.,162, 1912, p. 80.Diplograptus teretiusculua var. putillus Roemer and Freeh, Leth. Pal., 1, 1896,p. 628.Trenton-Richmond: Maquoketa Creek, Iowa (ifaquoketa) ; Canada; New York;Vermont; Ohio; Minnesota; etc.Plesiotype.?Cat. No. 54272, U.S.N.M.Climacograptus (Mesograptus) putillus cximius Ruedemann.Cf. Diplograptus putillus Lapworth, Proc. and Trans. Roy. Soc. Canada, 4, 1886,pp. 170, 178ff.Diplograptus aff. putillus Ruedemann, Bull. New York State Mus., 42, 1901,p. 541.Climacograptus putillus mut. eximius Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, p. 420, pi. 28, figs. 16, 378-384.Chazyan (Normanskill): Glenmont and Lansingburg, New York; Tartigo River,Cape Rouge, St. Lawrence region, Canada.Climacograptus scalarls annulatus Ruedemann.Climacograptus scalaris var. annulatus Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, p. 421, pi. 28, fig. 32, figs. 385-387. 238 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Climacograptus scalaris annulatus?Continued.Boulder of Clinton (?) sandstone: Aroostook, Maine.Observation.?For bibliography of C. scalaris which has not been found inAmerica, see Ruedemann, op. cit., 1908, p. 421.Climacograptus scharenbergi Lapworth.Climacograptus scharenbergi Lapworth, Cat. West. Scot. Foss., 1876, p. 6, pi. s,fig. 35; Rep. and Proc. Belfast Field Club, 2d ser., 1, pt. 4, 1877, p. 138,pi. 6, fig. 36.?Linnarsson, Sver. Geol. Unders. Ser. C. No. 31, 1879, p. 18.?Tullberg, ibid.. No. 50, 1882, p. 214.?Lapworth, Ann. Mag. Nat. Hist., 5thser., 5, 1880, p. 276; Proc. and Trans. Roy. Soc. Canada, 4, 1887, p. 180; Geol.Mag., 3d ser., 6, 1889, pi. 2.?Tomquist, Sartr. Kongl. Fys. Sallsk. Lund.Handl., IV, 1893, p. 8, pi. 1, fig. 28.?Gurley, Jour. Geol., 4, 1896, p. 298.?Roemer and Freeh, Leth. geog., Leth. Pal., 1, 1897, p. 609, fig. 176.?EllesQuart. Journ. Geol. Soc. Londoi, 54, 1898, p. 519.?Ruedemann, Bull.New York State Mus., 42, 1901, p. 541ff, pi. 1, fig. 1; 49, p. 11, pi. 3, fig. 1.?Clark, Geol. Mag., 4th ser., 9, 1902, p. 498.?Elles and Wood, Mon. BritishGrapt., pt. 5, 1906, pp. 206, 207, fig. 139; pi. 27, fig. 14.?Ruedemann, Mem.New York State Mus., 11, pt. 2, 1908, pp. 428-431, pi. 28, fig. 31, figs. 394-399.Middle Ordovician slates: Great Britain and Scandinavia.Chazyan (Normar skill): New York; Canada; Tennessee; etc.Climacograptus spinlferus Ruedemann.Climacograptus typicalis mut. spinifer Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, pp. 411, 412, pi. 28, figs. 8, 9, fig. 236.Climacograptus spiniferus Ruedemann, Bull. New York State Mus., 162, 1912,p. 84.Trenton: Ballston, Saratoga, Sandy Hill., etc., New York (Canajoharie, SnakeHill, and Schenectady); Macasty Bay, Anticosti (Macasty).Martinsburg (base): Virginia, etc.Climacograptus typicalis Hall.Climacograptus typicalis Hall, Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865,p. 27, pi. A, figs. 1-9.?Hall, 20th Ann. Rep., New York State Cab. Nat.Hist,, rev. ed., 1868, p. 224, pi. 2, figs. 1-9.?Zittel, Handb. Pal., 1, Munich,1879, p. 292, fig. 197; p. 300, fig. 208 a-c.?Walcott, Trais. Albany Inst., 5,1883, p. 10 (Advance sheets, 1879, p. 34).?Ulrich, Amer. Geology, 1, 1888,p. 183.?Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 339.?James, Jour.Cincinnati Soc. Nat. Hist., 14, 1892, p. 159.?Winchell and Schuchert, Geol.Minnesota, 3, pt. 1, 1895, p. 82, text, fig. 4.?Gurley, Jour. Geol., 4, p.298.?Roemer aud Freeh, Leth. geog., Leth. Pal., 1, 1897, p. 612.?Ruede-mann, Bull. New York State Mus., 42, 1901, p. 523.?Nickles, Jour. Cincin-nati Soc. Nat. Hist., 20, 1902, p. 68.?Ruedemami, Mem. New York StateMus., 11, pt. 2, 1908, pp. 407-411, pi. 28, figs. 6, 7, figs. 354, 356-358, 362.Climacograptus typicus Grabau and Shimer, N. A. Index Fossils, 1, 1906, p.32, fig. 51 b.Trenton-Edea: New York, Canada, Ohio, Minnesota, etc.Plesiotypes.?Cat. No. 54276, U.S.N.M.Climacograptus typicalis magnificus Twenhofel.Climacograptus typicalis magnificus Twenhofel, Bull. Victoria Mem. Mus., 3,1914, p. 23.Trenton (Macasty): Macasty Bay, Anticosti.Climacograptus typicalis spinifer Ruedemann. See Climacograptus spiniferus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 239Climacograptus typicus Grabau and Shiiner. See Climacograptxis typicalis.Cllmacograptus ulrichi Ruedemann.Climacograptus ulrichi Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,pp. 412, 413, pi. 28, %. 11.Richmond: Spencer, Missouri (Maquoketa); Oklahoma (Sylvan).Holntype and pamtype.?Cat. No. 54276, U.S.N.M.CLIMACOSPONGIA Hinde. Genotype: C. radiata Hinde.Climacospongia Hinde, Cat. Foss. Sponges British Mus., 1883, p. 18.?Ulrich,Geol. Surv. Illiaois, 8, 1890, p. 223.?Rauff, Palaeontographica, 41, 1895, p.243, footrote.Climacospongia radiata Hinde.Climacospongia radiata Hinde, Cat. Foss. Sponges British Mus., 1883, p. 18, pi. 1,figs. 1, la.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 224.Niagaraa (Brownsport^: Perry County, Tennessee.CLIMACTICHNITES Logan. Genotype: C. wilsoni Logan.Climactichjaites Logan, Canadian Nat. Geol., 5, 1860, pp. 279-285, figs. 1-5.?Dawson, ibid., 7, 1862, p. 274.?Jones, The Geologist, London, 5, 1862, pp.138-139.?Chapman, Expos. Min. and Geol. Canada, 1864, p. 160.?Billings,Quart. Jour. Geol. Soc. London, 26, 1870, p. 485.?Chapman, Canadian Jour.Sci., 15, 1877, pp. 486-490.?Nathor^t, Kongl. Sven. Vet.-Akad. HandL,18, No. 7, 1881, pp. 47, 99.?Todd, Trans. Wisconsin Acad. Sci., 5, 1882,pp. 276-281.?Dawson, Quart. Jour. Geol. Soc. London, 46, 1890, pp. 596and 600.?Woodworth. Bull. New York State Mus., 69, 1903, pp. 956-966.?Clarke, Bull. New York State Mus., 80, 1905, pp. 18-20, pi. 3.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 248.?Walcott, Smiths. Misc. Coll.,67, No. 9, 1912, p. 259, pis. 38-40.?Zittel-Eastman Textb. Pal., 2d ed.,1913, p. 142.Climactichnites fosterl Todd.Climactichaites Fosteri Todd, Trans. Wisconsin Acad. Sci., 5, 1882, p. 280, 277,fig. 1.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 132, fig.Upper Cambrian (? Ozarkian): Near New Lisbon, Wisconsin.Climacticlinites wUsoni Logan.Climactichnites Wilsoni Logan, Canadian Nat. Geol., 5, 1860, pp. 279-285, figs.1-5; Amer. Jour. Sci., 31, 1861, pp. 17-23, figs. 1-5.?Billings, Geol. Canada,Geol. Surv. Canada, 1863, p. 107, fig. 18.?Chapman, Canadian Jour., n. s., 8,1863, p. 188, fig. 157; Expos. Min. Geol. Canada, 1864, p. 160, fig. 157.?Marsh, Proc. Amer. Assoc. Adv. Sci., 17, 1879, p. 322.?Logan, 42d Rep.New York State Mus. Nat. Hist., 1889, p. 30, figs. 1-5.?Miller, N. A. Geol.Pal., 1889, p. 538, fig. 985.?Packard, Proc. Amer. Acad. Arts and Sci., 36,1900, p. 64.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 248.?Walcott, Smiths. Misc. Coll., 57, 1912, p. 286, pi. 40.Upper Cambrian or Ozarkian (Potsdam): Perth, Ontario; New York.Climacticlinites youngi Todd.Climactichnites Youngi Todd, Trans. Wisconsin Acad. Sci., 5, 1882, p. 280,fig. 1.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 132, fig.?Walcott, Smiths.Misc. Coll., 57, 1912, p. 282, pis. 38, 39.Upper Cambrian (?Ozarkian): Near New Lisbon, Wisconsin. 240 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CLINOCERAS Mascke. Genotype: C. dens Mascke.Clinoceras Mascke, Zeits. d. d. geol. Gesell., 28, 1876, p. 49?Zittel, Handb. Pal.,2, Munich, 1884, p. 370.?Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p.282.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 126.Clinoceras exiguum Schuchert. See Oncoceras exiguum.Clinoceras mumlaforme (Whitfield).Oncoceras mumiaforme Whitfield, Ann. Rep. Geol. Surv. Wisconsin for 1879, 1880,p. 58; Geol. Wisconsin, 4, 1882, p. 232, pi. 7, figs. 3-5.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 159, fig.Clinoceras muniieeforme Hj^att, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 282 (gen.ref.).?Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 797, pi. 57, figs. 7-10.?Grabau and Sliimer, N. A. Index Fossil, 2, 1910, p. 126, fig. 1371.Black River ( Platteville): Beloit and Janesville, Wisconsin.CLINOPISTHA Meek and Worthen. Genotype: C. Isevis Meek and Worthen.Clinopistha Meek and Worthen, Proc. Acad. Nat. Sci. PhiladelpMa, 1870, p. 43.?Hall, Pal. New York, 5, pt. 1, Lam. 2, 1885, p. liv.?Koninck, Ann. Mus. Roy.Hist. Nat. Belgique, 11, 1885, p. 125.?Miller, N. A. Geol. Pal., 1889, p. 472.?Hind, Mon. Brit. Carb. Lamellibranchiata, 1, Pal. Soc, 1900, p. 437.Clinopistha antlqua Whiteaves.Clinopistha? antiqua Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 3, 1897, p.185, pi. 20, fig. 6.Black River or Richmond: Inmost or Birch Island, Klnwow Bay, Lake Winnipeg.CLINTONELLA Hall and Clarke. Genotype: C. vagabunda Hall and Clarke.Clintonella Hall and Clarke, Pal.. New York, 8, pt. 2, 1893, p. 159; 13th Ann. Rep.New York State Geol., 1895, p. 814.?Miller, N. A. Geol. Pal., 2d App., 1897,p. 759.Clintonella vagabunda Hall and Clarke.Clintonella vagabunda Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 160,pi. 52, figs. 1-11; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 361,pi. 9, figs. 17-26; 14th Rep. State Geol. New York for 1894, 1897, p. 361, pi.9, figs. 17-26.Clinton (drift): Orleans County, New York.Cliocrinus Hudson. See Cleiocrinus Bi llings.Clioderma Hall. See Pterotheca Koken.CLIONYCHIA Ulrich. Genotype: Ambonychia lamellosa Hall.Ambonychia Hall (part). Pal. New York, 1, 1847, p. 163.Cleionychia Ulrich, Amer. Geology, 10, 1892, p. 97.Clionychia Miller, N. A. Geol. Pal., 1st App. 1892, p. 699.?Ulrich, Geol. Minne-sota, 3, pt. 2, 1894, p. 493; Geol. Surv. Ohio, 7, 1893, p. 650.?Dall, Zittel-Eastman Textb. Pal., 1, 1900, p. 368; 2d ed., 1913, p. 445.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p, 979.?Grabau and Shimer,N. A. Index Fossils, 1, 1909, p. 435.Clionychia erecta (Hall).Ambonycliia erecta Hall, Rep. Supt. Geol. Surv. Wisconsin, 1891, p. 32.?Whit-field, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 59, pi. 7, figs. 1, 2.Clionychia erecta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 496, pi. 35, figs. 17, 18.Black River (Platteville): Beloit, Wisconsin; Minneapolis, Minnesota.Plcsiotype.?CaA.. No. 46112, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 241Clionychla excavata Ulrich.Clionychia excavata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 651, pi. 51, figs. 4, 5. ? Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 997, pi. 44,figs. 4, 4a.Ambonychia excavata Miller, N. A. Geol. Pal., 2d App., 1897, p. 779 (gen. rcf.).Richmond (Whitewater): Richmond, Indiana.Rolotype.?Cat. No. 46113, U.S.N.M.ClionychIa(?) glbbosa Whiteaves.ClionychiaC?) gibbosa Whiteaves, Ottawa Nat., 22, 1908, p. 109, pi. 3, figs. 5, 6.Black River (Lowville): Hog Back, Ottawa, Ontario.Clionychia lamellosa (Hall).Ambonychia lamellosa Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 31 (can-cellosa in error).?Whitfield, Geol. Rep. Wisconsin, 4, 1882, p. 205, pi. 5,fig. 5; Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 57, pi. 7, figs. 5-7.Clionychia lamellosa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 494, pi. 35, figs.10-14.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 435, fig. 569a.Ambonychia attenuata Whitfield, Geol. Rep. Wisconsin, 4, 1882, p. 206, pi. 5,fig. 6.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 156, fig.?^Whitfield, Mem.Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 59, pi. 7, figs. 8-11.Cleionychia attenuata Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.).Black River (Platteville): Mineral Point, Beloit, Janesville, etc., Wisconsin;Minneapolis, etc., Minnesota.Plesiotypes?C&t. Nos. 46114-46116, U.S.N.M.Clionychia marginalis Raymond.Clionychia marginalis Raymond, Anjer. Jour. Sci., 20, 1905, p. 373.Chazyan (Day Point): Chazy and Valcour Island, New York.Clionychia mytiloides (Hall).Ambonychia mytiloides Hall, Pal. New York, 1, 1847, p. 315, pi. 33, figs. 2a-b.Cleionychia mytiloides Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. lA.).Chazyan: Chazy, New York.Clionychia nitida Uhich.Clionychia nitida Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 495, pi. 35, figs. 15, 16.Black River (Platteville): Minneapolis, Minnesota.Clionychia ottawaensis ^Vhiteaves.Clionychia ottawaensis Whiteaves, Ottawa Nat., 22, 1908, p. 108, pi. ?>, fig. 4.Black River (Lowville): Hog Back, Ottawa, Ontario.Clionychia rhomboldea (Ulrich).Cleionychia rhomboidca Ulrich, Amer. Geol., 10, 1892, p. 97.Clionychia rhomboidea Miller, N. A. Geol. Pal., 1st App., 1892, p. 699, fig. 1257.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 496, pi. 35, figs. 19, 20.Black River (Platteville): Minneapolis, Minnesota.Plastotype.?C^t. No. 46117, U.S.N.M.Clionychia subuudata Ulrich.Clionychia sabundata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 651, fig.Ambonychia subundata Miller, N. A. Geol. Pal., 2d App., 1897, p. 779 (gen. ref.).Trenton (Upper): Mouth of Licking River, Covington, Kentucky.Eolotype.?Ca.t. No. 46118, U.S.N.M.84243??Bull. U2?15 IG 242 BULLETIN U2, UNITED STATES NATIONAL MUSEUM.Cllonychia superba (Billings).Ambonychia siiperba Billings, Cat. Sil. Fosa. Anticosti, Geol. Surv. Canada, 1866,p. 50, fig. 16.Cleionychia? euperba Ulrich, Amer. Geol., ](), 1892, p. 97 (gen. ref.).Gamachian (Ellis Bay): Junction Cliff, Anticosti.Flastotype?Cat. No. 46910, U.S.N.M.Clionychia undata (Emmons).Pterinea imdata Emmons, Geol. Rep. New York, 2, 1842, p. 395, fig. 1.?Owen,Amer. Jour. Sci. and Arts, 47, 1844, p. 369, fig. 1; p. 366, fig.Ambonychia undata Hall, Pal. New York, 1, 1847, p. 165, pi. 36, figs. 7a-b.?Hitchcock, Geol. Vermont, 1, 1861, p. 296, fig. 205.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 23, fig.Cleionychia undata Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.).Clionychia undata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 497, pi. 35, figs. 21,22.?Grabau and Shimei, N. A. Index Fossils, 1, 1909, p. 435, fig. 569b.Posidonomya subundata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 177, pi. 13,figs. 23, 25.Trenton: Watertown, etc.. New York; Fillmore and Goodhue Counties, Minnesota(Prosser).Plesiotyjye?Gat. No. 46119, U.S.N.M.CLIOPTERIA Williams. Genotype: Cliopteria bicostata Williams.Cliopteria Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 391.Cliopteria bicostata Williams.Cliopteria bicostata, Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 392, pi. 50, figs.1, 2, 7.Silurian (Pembroke): Youngs Cove, Washington County, Maine.Cotypes.?Cat. No. 58441, U.S.N.M.Cliopteria unicosta Williams.Cliopteria unicosta Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 393, pi. 50, figs.3, 4, 6.Silurian (Pembroke): Youngs Cove, Washington County, Maine.Cotyi^es.?Cat. No. 58442, U.S.N.M.CLISIOPHYLLUM Dana. Genotype: C. danaanum Edwards and Haime.Clisiophyllum Dana, Wilkes' U. S. Expl. Exped. 1838-42, 7, 1846, p. 361, pi. 26,figs. 6, 7; Amer. Jour. Sci. and Arts, 2d ser., 1, 1846, p. 187, fig. 2.?Edwardsand Haime, Mon. Polyp. Foss. Terr. Pal. (Arch. Mus. d'Hist. Nat., 5), 1851,pp. 170, 409.?Billings, Canadian Jour., n. 8., 4, 1859, p. 128.?Milne-Edwards,Hist. Nat. Corall., 3, 1860, p. 402.?Dybowski, Archiv. f. Nat. Liv-, Ehst-undKurl., 5, 1873, p. 338.?Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874,p. 20.?Thomson and Nicholson, Ann. Mag. Nat. Hist., 4th ser., 18, 1876,p. 71, fig. E.?Romiiiger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 110.?Zittel,Handb. Pal., 1, p. 232.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 384.?Hall, 12th Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 299.?Miller, N. A.Geol. Pal., 1889, p. 179.?Koken, Die Leitfossilien, Leipzig, 1896, p. 309.?Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 173.Clisiophyllum austini Houghton. See Acervularia austini.Clisiophyllum danaanum Edwards and Haime.Clisiophyllum danaanum Edwards and Haime, Mon. Polyp. Foss. Terr. Pal.(Arch, du Mus. d'Hist. Nat., 5), 1851, p. 412.?Milne-Edwards, Hist. Nat.Corall., 3, 1860, p. 404.Silurian: Periy County, Tennessee. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 243CLISOSPIRA Billings. Genotype: C. curiosa Billings.Clisospira Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 186.?'WTiitfield,Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 307.?Koken, Neues Jahrb. f. Min.,Geol. Pal., Beilage, 6, 1889, p. 435.?Miller, N. A. Geol. Pal., 1889, p. 400.?Koken, Bull. Acad. Imp. Sci. St. Tetersburg, 7, 1897, p. 199.Clisospira bassleri Raymond.Clisospira bassleri Raymond, Ann. Carnegie Mus., 4, 1908, p. 214, pi. 54, figs. 16, 17.Chazyan (Day Point?): Isle La Motte, Vermont.Holotype.?Cat. No. 53631, U.S.N.M.Clisospira curiosa BilHngs.Clisospira curiosa Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 186, fig.167, p. 420, App., fig. 401, a, b.?Miller, N. A. Geol. Pal., 1889, p. 400, fig. 661.Clisiospira curiosa Clarke, Amer. Geol., 13, 1894, p. 331.Canadian (Beekmantown) : Near St. Autonie, above Quebec, Canada.Clisospira lirata Whitfield.Clisospira lirata WTiitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 308, pi. 24,figs. 16, 17.Clisiospira (Onycliocheilus?) lirata Clarke, Amer. Geology, 13, 1894, p. 331.Clisiospira lirata Seely, Rep. State Geol. Vermont, 7, 1910, pi. 62, figs. 16, 17.Canadian (Beekmantown) : Fort Cassin, Vermont.Clisospira occidentalis Whitfield.Clisospira occidentalis, WTiitfield, Ann. Rep. Wisconsin Geo). Surv. for 1877, 1878,p. 75; Geol. Wisconsin, 4, 1882, p. 222, pi. 5, fig. 21.Clisiospira occidentalis Clarke, Amer. Geol., 13, 1894, p. 331.Black River (Platteville) : Beloit, Wisconsin.CLITAMBONITES Pander. Genotype: Pronites adscendens Pander.Klitambonites Pander, Beitrage zur Geognosie des Russischen Reiches, 1830,p. 70, pi. 3, fig. 14; pi. 28, figs. 16, 17.Clitambonites Q^hlert, Fischer's Manuel de Conchyliologie, 1887, p. 1289, fig.1059.?Hall and Clarke, Pal. New York, 8, pt. 1," 1892, p. 233.?Miller, N. A.Geol. Pal., 1st App., 1892, p. 687.?Winchell and Schuchert, Geol. Minnesota,3, 1893, p. 377.?Hall and Clarke, 11th Ann. Rep. New York State Geol., 1894,p. 274.?Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 320; 2d ed.,1913,p. 392.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 270.OrthisinaD'Orbigny, Compt. Rend. del'Acad. Sci., 25, 1847, p. 267; Prod. Pal., 1,1849, p. 16.?Davidson, British Foss. Brach., Pal. Soc, 1853, p, 104.?Wood-ward, Man. Mollusca, pt. 2, 1854, p. 230, fig. 148.?Pictet, Traite dePal.,2d ed., 4, 1857, p. 57.?Chapman, Canadian Jour., n. s., 3, 1868, p. 160.?Pahlen, Mem. I'Acad. Imp. Sci. St. Petersburg, 7th ser., 24, No. 8, 1877,p. 7.?Zittel, Handb. Pal., 1, 1880, p. 676.?Waagen, Mem. Geol. Surv. India,Pal. Indica, 13th ser., 1,1884, p. 576.?Miller, N. A. Geol. Pal., 1889, p. 360.?Koken, Die Leitfossilien, Leipzig, 1896, p. 234, fig. 194, p. 408.?Huene,Verb. d. Russ-Kais. Min. Gesell. zu St. Petersburg, 2d ser., 38, 1896, p. 224.Clitambonites adscendens (?Pander).Orthisina adscendens (Pander) Kayaer, Paleontographica, Suppl., 3, 1876, p. 20,pi. 2, figs. 9-11.Ordovician: Europe; Juan Pobre and Laja, Cordillere San Juan, Argentina.Clitambonites americanus Hall and Clarke. See Clitambonites diversus.Clitambo.nites americanus var. Hall and Clarke. See Clitambonites diversusaltissimus. 244 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Clitambonites(?) borealis (Castelnau).Terebratula borealis Castelnau, Essai Syst. Sil. FAmerique Septent., 1843, p. 40,pi. 14, fig. 14.Terebratula turpis de Verneuil, ibid. 1843, p. 40, footnote.Clitambouites(?) borealis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 183. "Alagnesian limestone of Green Bay, Wisconsin."Observation.?The figure is not satisfactory. The species seems to be related toC. diversus Shaler (Schuchert).Clitambonites diversus (Shaler).Orthisina diversa Shaler, Bull. Mus. Comp. Zool., 1, 1865, p. 67.Orthisina verneuili Billings (not Eichwald), Cat. Sil. Foss. Anticosti, 1866, pp.43, 74.Clitambonites diversa Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 378,pi. 30, figs. 11-17.?WTiiteaves, Pal. Foss., 3, pt. 3, Geol Surv. Canada, 1897,p. 166.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 270, figs. 324e-g.Orthisina (Clitambonites) diversa Huene, Verh. d. Russ. Kais. Mineral Gesell.zu St. Petersburg, 2d ser., 38, 1900, p. 225, fig. 2.Hemipronites, americanus "WTiitfield, Ann. Rep. Geol. Surv. Wisconsin, 1877, p.72; Geol. Wisconsin, 4, 1882, p. 243, pi. 10, figs. 15-17.Streptorhynchus americanus Miller, N. A. Geol. Pal., 1889, p. 378.Clitambonites americanus Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 239,pi. 15A, figs. 1-8.?Ruedemann, Bull. New York State Mus., 162, 1912, p. 94,pi. 4, figs. 14-19.Trenton and Richmond: Island of Anticosti (Charleton and Ellis Bay); Oshkosh,Wisconsin; Cannon Falls, etc., Minnesota; Ontario; Manitoba; Snake Hill,New York.Observation.?Probably two species are included in the above citations, but thetypes of both C. diversus and C. americanus are from the Richmond.Clitambonites diversus altissimus Winchell and Schuchert.Clitambonites americanus var. Hall and Clarke, Pal. New York, 8. pt. 1, 1892,pi. 15A, figs. 7, 8.Clitambonites diversa var. altissuna Winchell and Schuchert, Geol. Minnesota,3, 1893, p. 381, pi. 30, figs. 18, 19.Trenton (Prosser): Near Caimon Falls, Minnesota.Clitambonites diversus-kogersensis Foerste. See Clitambonites rogersensis.Clitambonites(?) johannensis Schuchert. See Eoorthis johannensis.Clitambonites multicostns (Hudson).Syntrophia multicosta Hudson, Bull. New York State Mus., 80, 1903, p. 285, pi. 5,figs. 8-15.Clitambonites multicostus Raymond, Ann. Carnegie Mus., 7, 1911, p. 247, fig. 23;pi. 36, figs. 10-14.Chazyan (Valcour): Eastern side of Valcour Island, Blul'f Point, and Chazy, NewYork.Clitambonites multistriatus Foerste.Clitambonites multistriata Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912, p.131, pi. 10, fig. 12.Trenton (Perry\dlle): Near Danville, Kentucky^Clitambonites piger Schuchert and Twenhofel. See Ortliis(?) piger. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 245CUtambonites planus retroflexus (Vorneuil).Gonambonites plana var. retroflexa Verneuil, Beitr. zur Geog;. Russ. Eeiches,1830, p. 77, pi. 25, figs. 1, 2.Clitambonites (Gonambonites) plana var. retroflexa Matthew, Trans. Roy. Soc.Canada, 2d ser., 1, 1896, p. 266, pi. 2, figs, la-lc.Canadian (Bretonian): McFeel, Cape Breton, Nova Scotia.CUtambonites porcia (Billings).Orthis porcia Billings, Canadian Nat. Geol., 4, 1859, p. 439, figs. 16-18; Geol.Canada, Geol. Surv. Canada, 1863, p. 130, fig. 58.?Lesley, Geol. Surv. Penn-sylvania, Rep. P 4, 1889, p. 531, figs.Clitambonites porcia Raymond, Ann. Carnegie Mus., 7, 1911, p. 248, pi. 36, figs.15, 16.Chazyan (Aylmer): Two miles south of Montreal, Quebec.Clitambonites rogersensis (Foerste).Clitambonites diversus-rogersensia Foerste, Bull. Sci. Lab. Denison Univ., 14,1909, p. 323, pi. 7, figs. 14a, b.Clitambonites rogersensis Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 69;Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 132, pi. 2, figs. 6a-d.Trenton (Upper): Rogers Gap and north of Ford, Kentucky.Clonograpsus Nicholson. See Clonograptus Hall.CLONOGRAPTUS Hall. Genotype: Graptolithus rigidus Hall.Clonograpsus Hall in Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 138.Clonograptus Zittel, Handb. Pal., 1, 1879, p. 299.?Herman, Geol. Mag., dec. 3, 3,1886, p. 24.?Barrois, Ann. Soc. Geol. Nord, 21, 1893, p. 108.?Wiman, Bull.Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 265.?Koken, Die Leitfos-silien, 1896, p. 416.?Roemer and Freeh, Leth. geog., 1 Theil Leth. Pal., 1, 2Lief, 1897, p. 598.?Files, Quart. Jour. Geol. Soc. London, 54, 1898, p. 472.?Elles and Wood, Mon. British Graptolites, Pal. Soc, 1902, p. 82.Clonograptus abnormis (Hall).Graptolithus abnormis Hall, Canadian Nat. Geol., 3, 1858, p. 144; Geol. Surv.Canada, Rep. Progi-. for 1857, 1858, p. 117; Pal. New York, 3, 1859, p. 503;12th Rep. New York State Cab. Nat. Hist., 1859, p. 51; Geol. Sur^^, Canada,dec. 2, 1865, p. 106, pi. 11, fig. 6.Graptolithus (Monoprion) abnormis Hall, 20th Rep. New York State Cab. Nat.Hist., 1868, p. 226; rev. ed., 1870, pp. 223, 261.Clonograptus abnormis Elles and Wood. Mon. British Grapt., Pal. Soc, 1903, p. 51(gen. ref.).Dichograptus abnormis Gurley, Jour. Geol., 4, 1896, pp. 65, 95 (gen. ref.).Canadian (Levis): Point Levis, Quebec.Clonograptus flexilis (Hall).Graptolithus flexilis Hall, Geol. Surv. Canada, Rep. for 1857, 1858, pp. 119, 145.?Billings, Geol. Canada, Geol. Surv. Canada, 1868, p. 228, fig. 235.?Hall,Geol. Surv. Canada, dec. 2, 1865, p. 11, fig, 8; p. 103, pi. 10, figs. 3-9.Dichograpsus flexilis Nicholson, Mon. British Graptolites, 1872, p. 108, fig. 51. ? Gyrley, Jour. Geol., 4, 1896, p. 95.Graptolithus (Dichograptus) flexilis Hall, 20th Rep. New York State Cab. Nat.Hist., 1868, p. 176, fig. 9; p. 226, pi. 3, figs. 28, 29; rev. ed., 1870, p. 209, fig.9, pi. 3, figs. 28, 29.Graptolithus (Monoprion) flexilis Hall, 20th Rep. New York State Cab. Nat. Hist.,1868, p. 223. 246 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Clonograptus flexilis?Continued.Clonograpsus flexilis Nicholson, Ann. Mag. Nat. Hist., 4tli ser., 11, 1873, p. 138(gen. ref.).Clonograptus flexilis Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 97. ? Pritchard, Proc. Royal Soc. Victoria, n. s., 7, 1895, p. 29.?Roemer, Leth,geog., 1 Theil., Leth. Pal., 1, 3 Lief, 1897, p. 599, fig. 164.?Elles, Quart.Jour. Geol. Soc. London, 54, 1898, p. 473.?T. S. Hall, Proc. Soc. Victoria, n.s., 11, 1898, p. 169, pi. 19, fig. 20.Clonograptus cf. flexilis Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,p. 618.Canadian: Point Levis, Quebec (Levis, Clonograptus zone); St. John, NewBrunswick (Bretonian, Div. C 3d); near Defree3t\'ille, Rensselaer County,New York (Deepkill); Victoria.Clonograptus milesi (Hall).GraptoUthus milesi Hall, Geol. Vermont, 1, 1861, p. 372; 2, pi. 12, figs. 2^;Geol. Surv. Canada, dec. 2, 1865, p. 20, fig. 27; 20th Rep. New York StateCab. Nat. Hist., 1868, p. 188, fig. 29; p. 226; rev. ed., 1870, p. 217, fig. 29.Graptolithus (Monoprion) milesi Hall, 20th Rep. New York State Cab. Nat. Hist.,1868, p. 223.Dichograpsus (Graptolithus) milesi Nicholson, Mon. Brit. Grapt., 1872, p. 65,fig. 34.Temnograptus milesi Nicholson, Geol. Mag., dec. 2, 3, 1876, p. 248 (gen. ref.).Clonograptus milesi Ruedemann, Bull. New York State Mus., 69, 1903, p. 939;Mem. New York State Mus., 7, 1904, p. 617 and footnote.Canadian (Levis): Monckton, Vermont.Clonograptus proximatus Matthew. See Staurograptus dichotomus.Clonograptus remotus (Gurley).Dichograpsus remotus Gurley, Jour. Geol., 4, 1896, p. 64.Clonograptus remotus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,p. 133 (gen. ref.).Canadian (Levis): Point Levis, Quebec.Clonograptus Richardson: Elles and Wood. See Holograptus richardsoni.Clonograptus rigidus (Hall).Graptolithus rigidus Hall, Canadian Nat. Geol., 3, 1858, p. 146; Geol. Surv. Can-ada, Rep. Progr. for 1857, 1858, p. 121; Geol. Surv. Canada, dec. 2, ]865,p. 105, pi. 11, figs. 1-5.Graptolithus (Monoprion) rigidus Hall, 20tli Rep. New York State Cab. Nat.Hist., 1868, p. 226; rev. ed., 1870, pp. 223, 261.Dichograpsus rigidus Gurley, Jour. Geol., 4, 1896, p. 95 (gen. ref.).Clonograptus rigidus Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 138(gen. ref.).?Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief.,1897, p. 599.?T. S. Hall, Proc. Royal Soc. Victoria, n. s., 11, 1898, p. 170,pi. 18, fig. 22; pi. 19, fig. 21.?Elles and Wood, Mon. Brit. Grapt. Pal. Soc,1903, p. 51 (gen. ref.).Canadian (Levis, Clonograptus zone): Point Levis, Quebec. Lower Ordovicianslates of Victoria.Clonograptus? spinosus Matthew.Clonograptus (?) spinosus Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p.97, pi. 7, figs. 2 a, b.Canadian (Bretonian, Div. C3b): Na-\y Island, New Bruns^vick.Observation.?Possibly same as Staurograptus dichotomus Emmons. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 247CLORINDA Barrande. Genotype: C. armata Barrande.Cloriiida Barrande, Syat. Sil. Bolieme, 5, pt. 1, 1879, p. 109, pi. 119; Brach. Ext.Syst. Sil. Centre Bolieme, 5, 1879, p. 172.?Scliuchert, Zittel-Eastman Textb.Pal., 1, 1900, p. 322.?Grabau and Shinier, N. A. Index Fosails, 1, 1907, p.276.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 395.Barrandella Hall and Clarke, Pal. New York, 8, pt. 2, 1893, pp. 241, 243; Ann.Rep. New York State Geol., 1895, p. 844.?Grabau, Bull. New York StateMus.,45, 1901,p. 191; Bull. Buffalo Soc. Nat. Sci., 7, 1901,]>. 191.Clorinda arcuosa (McChesney).Pentamerua arcuosus McChesney, Descriptions New Pal, Foss., 1861, p. 87.Clorinda arcuosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 184Niagaran (Racine): Milwaukee, Wisconsin.Clorinda areyi (Hall and Clarke).Barrandella areji Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pp. 242, 368,pi. 71, fig3. 14-16; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 369,pi. 13, figs. 1-3; 14th Rep. State Geol. New York for 1894, 1897, p. 369, pi.13, figs. 1-3.Clorinda areyi Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 184.CUnton: Rochester, New York.Clorinda barrandei Schuchert. See Virgiana barrandei.Clorinda fornicata (Hall).Pentamerus fornicatus Hall, Pal. New York, 2, 1852, p. 81, pi. 24, fig. 7.Pentamerus fornicatus var. Hall, Desc. n. sp. Fossils, Waldron, Indiana, 1879, p.16; 11th Rep. State Geol. Indiana, 1882, p. 299, pi 27, fig. 15; Trans. AlbanyInst., 10, 1883, p. 72.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.616, figs.Barrandella fornicata Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 243, pi.70, figs. 11-13.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 191, fig. 104;Bull. New York State Mus., 45, 1901, p. 191, fig. 104.Clorinda fornicata Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 184.Clorinda (Barrandella) fornicata Grabau and Shimer, N. A. Index Fossils, 1, 1907,p. 276, fig. 335.Niagaian: Lockport, New York (Clinton-Irondequoit); Waldron, Indiana (Wald-ron); Wisconsin.Clorinda? thebesensis Savage.Clorinda? thebesensis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 79, pi. 5, figs.7,8.Upper Medinan (Edgewood): Near Thebes, Illinois; Louisiana; and near Chvrks-ville, Pike County, Missouri (Noix oolite).Clorinda ventricosa (Hall).Pentamerus ventricosa Hall, Geol. Surv. Wisconsin, Rep. Prog., 1860, p. 2. ? ^Vhitfield, Geol. Wisconsin, 4, 1882, p. 291, pi. 17, figa. 11-13.?Chamberlin,Geol. Wisconsin, 1, 1883, p. 192, fig.?Nettelroth, Kentucky Fossil Shells,Mem. Kentucky Surv., 1889, p. 64, pi. 33, figs. 12-14.?Lesley, Geol. Suiv.Pennsylvania, Rep. P 4, 1889, p. 619, 2 figs.Pentamerus chicagoensis Winrhell and Marcy, Mem. Boston Soc. Nat. Hist., 1,1865, p. 94, pi. 2, fig. 11.?Hall, 20th Rep. New York State Cab. Nat. Hist.,1868, p. 392.Pentamerus (Pentamerella?) ventricosa Hall, 20th Rep. New York State Cab.Nat. Hist., 1868, p. 374, pi. 13, figs. 18-21. 248 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Clorinda ventricosa?Continued.Pentamerus (Pentamerella) ventricosus Hall and "Whitfield, Pal. Ohio, 2, 1875,p. 138, pi. 7, figs. 7, 8.Pentamerus (Barrandella) ventricosus Whiteaves, Pal. Foss., Geol. Surv. Canada,3, pt. 2, 1895, p. 65.Barrandella ventricosa Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 243, pi.71, figs. 4-10; pi. 84, fig. 46.Clorinda (Barrandella) ventricosa Grabau and Shimer, N. A. Index Fossils, 1,1907, p. 276, fig. 33r)a-b.Clorinda ventricosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 185.Niagaran: Waukesha, Wisconsin; Bridgeport, Illinois (Racine); Louisville, Ken-tucky; Ohio.Plesiotype.?Csit. No. 51323 (Nettelroth).CLOSTEROCRINUS Hall. GenotjT^e: C. elongatus Hall.Closterocrinus Hall, Pal. New York, 2, 1852, p. 179.?Pictet, Traite de Pal., 2d ed.,4, 1857, p. 329.?Miller, N. A. Geol. Pal., 1889, p. 232.?Bather, Treatise onZool. (Lankester), pt. 3, 1900, p. 173.Closterocrinus elongatus Hall.Closterocrinus elongatus Hall, Pal. New York, 2, 1852, p. 179, pi. A 41, figs. 2a-f.Clinton (irondequoit): Lockport, New York.Cnemidium? Trentonensis Worthen. See Zittelella trentonensis.COCCOCRINUS Miiller. Genotype: C. rosaceus Roemer.Coccocrinus Miiller, in Zeiler and Wirtgen, Verh. Naturh. Verein Rheinl., 12,1855, p. 20.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 310.?Roemer, Sil.Fauna West. Tennessee, 1860, p. 51.?Dujardin and Hupe Hist. Nat. Zooph.,1862, p. 107.?Allman, Trans. Royal Soc. Edinburgh, 23, 1864, p. 248, fig. 3.?Schultze, Denk. d. Kais. Akad. der Wiss., Math.-Naturw., CI. 26, Abth. 2,1867, p. 200, fig. 16.?Zitt.el, Handb. d. Pal., 1, 1879, p. 347.?WachsmuthandSpringer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 232. (Rev. Pal., pt.2, p. 58); 1886, pp. 280, 336 (Rev. Pal., pt. 3, pp. 58, 114); 1887, pp. 97-113;ibid., 1890, pp.351, 355.?Neumayr, Stilmme des Thierreicher, 1889, p.470.?Miller, N. A. Geol. Pal., 1889, p. 232.?Bather, Geol. Mag., dec. 4, 4, 1897,p. 343.?Wachsmuth and Springer, Mem. Mus. Comp. Zool., Harvard, 21,1897, p. 738.?Bather, Treatise on Zool., pt. 3, Echinoderma, 1900, p. 156.?Zittel, Grundzuge Pal., 1, 1910, p. 149.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 515.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913,p. 199.Coccocrinus bacca Roemer.Coccocrinus bacca Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 51, pi.4, figs. 5a, 5b, 5c.?Miller, N. A. Geol. Pal., 1889, p. 232, fig. 265.?Wachsmuthand Springer, Mem. Mus. Comp. Zool., Harvard, 21, 1897, p. 739, pi. 75, fig.15._Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 29, pi. 4, fig. 9.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 515, fig. 1835.Platycrinites Ann Dixoni Troost, Amer. Jour. Sci. and Arts, 2d ser., 8, 1849, p.420 (nom. nud.); Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61.Niagaran (Brownsport): Perry and Decatur Counties, Tennessee.Plesiotype.?Cut. No. 39888, U.S.N.M. (Troost's type of P. Ann Dixoni^.Coccocrinus conicus (Troost).Coccocrinus conicus (Cupellacrinites conicus Troost MS. 1850) Wood, Bull.U. S. Nat. Mus., 64, 1909, p. 29, pi. 15, fig. 1.Niagaran (Brownsport): Decatur County, Tennessee.Eolotype.?Cat. No. 39933, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 249CoDASTER osGOODENSis Wachsmuth and Springer. See Stephanocrinus osgcodensia.CoDASTER PENTALOBUS Hall. See Stephanocrinus pentalobua.CoDASTER puLCHELLUs Miller and Dyer. See Stephanocrinus pulchellus.CODONOCHILUS Whiteaves. Genotype: C. striatum Whiteaves.Codonocheilus Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 17.Codonochilus Miller, N. A. Geol. Pal., 1889, p. 400.Codonochilus striatum Whiteaves.Codonoclieilua striatum Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1,1884, p. 17, pi. 3, fig. 3.Codonochilus striatum Fischer, Man. de Conchyl., 1885, pp. 832, 833.?Miller,N. A. Geol. Pal., 1889, p. 400, fig. 662.?Whiteaves, Pal. Foss., Geol. Surv.Canada, 3, pt. 2, 1895, p. 93.Niagaran (Guelph): Hespeler and Durham, Ontario.CcELASTER AMERicANUS D'Orbiguy. See Petraster americana.CcELASTER MATUTiNA D'Orbiguy. See Iludsonaster matutina.CcELiDiuM Clarke and Ruedemann. See Ccelocaulus (Ehlert.CCELOCAULUS O^^hlert. Genotype: Murchisonia (Ccelocaulus) davideoni CEhlert.Murchisonia (part) Lindstrom, Billings, and other authors.Ccelocaulus (new subgenus of Murchisonia) ffihlert, Bull. Soc. d'Etudes Sci.d'Angers, 7, 1888, p. 84.?Koken, Neues Jahrb. f. Min., Geol. Pal., 6, Beilage-Band, 1889, p. 371.?Donald, Quart. Jour. Geol. Soc. London, 48, 1892, p.572; 51, 1895, p. 211.?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,pp. 959-1019.?Koken, Neues Jahrb. f. Min., Geol. Pal., 1, 1898, p. 20.Coelidium Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 65. ? Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 652.Ccelocaulus bivittatus (Hall).Murchisonia bivittata Hall, Pal. New York, 2, 1852, p. 345, pi. 83, fig. la, b.?Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 339, fig. 343.?Nichol-son, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, figs. 7 (not fig. 8); Quart.Jour. Geol. Soc. London, 31, 1875, p. 546, pi. 26, fig. 7.?Lesley, Geol. Surv.Pennsylvania, Rep'. P4, 1889, p. 427, fig.?Whiteaves, Pal. Foss,., Geol. Surv.Canada, 3, pt. 2, 1895, p. 82, pi. 12, figs. 5, 6.Murchisonia (Ccelocaulus) bi\'ittata Kindle and Breger, 28th Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1904, p. 462, pi. 13, fig. 4.Ccelocaulus bivittatus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020(gon. ref).Niagaran: Gait, Ontario (Guelph); Hunrington, Indiana.Pleswtype.?C'.2it. No. 52948, U.S.N.M.Ccelocaulus estella (BilHngs).Murchisonia Estella Billings, Pal. Fosg., 1, Geol. Sur^^ Canada, 1865, p. 157, fig.139.?Koken, Neues .Tahrb. f. Min., Geol. Pal., Beilage-Band, 6, 1889, p.308.?Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 11, 1895, p. 83.Ccelocaulus estella Whiteaves, ibid., 3, pt. 4, 1906, p. 334 (gen. ref.).Niagaran (Guelph): Gait, Ontario.Observation.?Probably the same as C. turritiformis (Hall).Ccelocaulus linearis (Billings).Murchisonia linearis, Billing?, Canadian Nat. Geol., 4, 1859, p. 359, fig. 8g; Geol.Canada, Geol. Surv. Canada, 1863, p. 119, fig. 31.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 429, fig. 250 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Coelocaulus linearis?Continued.Coelocaulua linearis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020(gen. ref.).Coelidium linearis Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 652.Chazyan (Mingan) : Mingan Islands, Canada.CcELOCAULUs LoGANi Hall. See Coelocaulus macrospira.Coelocaulus longispira (Hall).Murcliisonia longispira Hall, Pal. New York, 2, 1852, p. 345, pi. 83, fig. 2a, b.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, figs. 11, 12;Quart. Jour. Geol. Soc. London, 31, 1875, p. 546, pi. 26, figs. 11, 12.?AYhite-aves. Pal. Toss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 83.Coelocaulus longispira UMcli and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.1020 (gen. ref.).Niagaran (Guelph): Gait, Ontario; Wisconsin.Coelocaulus macrospira (Hall).Murchisonia macrospira Hall, Pal. New York, 2, 1852, p. 346, pi. 83, fig. 5.?Billincs, Geol. Canada, Geol. Surv. Canada, 1863, p. 339, fig. 334.?Nicholson,Quart. Jour. Geol. Soc. London, 31, 1875, p. 545, pi. 26. fig. 9; Rep. Pal.Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, fig. 9.?Chamberlin, Geol. Wisconsin,1, 1883, p. 193, fig.?Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1,1884, p. 27, pi. 4, figs. 7, 7a.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 429, fig.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895,p. 81.Coelidium macrospira Clarke and Ruedemann, Mem. New York State Mus.,5, 1903, p. 65, pi. 7, figs. 2-8; pi. 10, fig. 13.?Grabau and Shimer, N. A.Index Fossils, 1, 1909, p. 652, fig. 892.Coelocaulus macrospira Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906,p. 333 (gen. ref.).Murchisonia loganii Hall, Pal. New York, 2, 1852, p. 346, pi. 84, figs. 4a, b.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, figs. 3, 4; Quart.Jour. Geol. Soc. London, 31, 1875, p. 544, pi. 26, figs. 3, 4.?Whiteaves, Pal.Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 80.Ccelocaulus logani Ubich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020(gen. ref.).Niagaran (Guelph): Gait, Ontario; Shelby and Rochester, New York; Wisconsin.Coelocaulus neglectus Ulrich and Scofield.Coelocaulus neglectus Ulrich and Scofield, Geol. Iklinnesota, 3, pt. 2, 1897, p. 1020,pi. 82, figs. 29-31.Trenton (Prosser): Near Cannon Falls, Minnesota.Holotype?Cat. No. 45749, U.S.N.M.Coelocaulus obtusus (Hall).Murchisonia? obtusa Hall, Pal. New York, 2, 1852, p. 333, pi. 76, fig. 3.Cayugan (Cobleskill): Schoharie, New York.Coelocaulus oehlerti Ulrich and Scofield.Coelocaulus oehlerti Uhich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1020,pi. 70, figs. 01-63.Coelidium oehlerti Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 652, fig.893 a, b.Murchisonia oehlerti Miller, N. A. Geol. Pal., 2d App., 1897, p. 768 (gen. ref.).Trenton (Galena): Jo Daviess County, lUinoia.Cotypes: Cat. No. 45750, U.S.N.M. * BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 251Coelocaulus petila (Hall and \\Tiitfield).Murchisonia petila Hall and Whitfield, 24th Rep. New York State Cab. Nat.Hist., 1872, p. 186; 27th Rep., 1875, p. 186, pi. 13, fig. 8.?Nettelroth, Ken-tucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 170, pi. 31, fig. 5.Niagaran (Louis\dlle): Falls of the Ohio.Ccelocaulus terebrans (Hall).Murchisonia? terebralis Hall, Pal. New York, 2, 1852, p. 334, pi. 76, fig. 4.Cayugan (CoblesMll): Schoharie, New York.Ccelocaulus turritiformis (Hall).Murchisonia turritiformis Hall, Pal. New York, 2, 1852, p. 347, pi. 83, fig. 6a, b. ? Nicholson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 545, pi. 26, fig. 10;Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 70, pi. 3, fig. 10.?Whiteaves, Pal.Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 26, pi. 4, fig. 5; pt. 2, 1895, p. 84,pi. 12, fig. 4.Ccelocaulus turritiformis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.1020 (gen. ref.).Niagaran (Guelpli): Gait, Ontario; Wisconsin.Observation.?See C. estella (Billings) for a probable synonym.Ccelocaulus vitellia (Billings).Mmchisonia Vitellia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 156, fig.138 (adv. slieets 1862).?Nicholson, Quart. Jour. Geol. Soc. London, 30, 1875,p. 547, pi. 20, fig. 6; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 71, pi. 3, fig. 6.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 80.Coelidium cf. AitelliaClarke and Ruedemann, Mem. New York State Mus., 5, 1903,p. 67, pi. 7, figs. 9, 10.Coelocaulus(?) Vitellia Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906,p. 333 (gen. ref.).Niagaran (Guelph): Gait, Ontario; Rochester, New York.C(ELOCLEMA Ulrich. Genotype: Diamesopora vaupeli Ulrich.Coeloclema Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 137; 7, 1884, p. 49(not defined).?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp.24, 211.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 21.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 122.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 742.?Bassler, Bull. U. S. Nat. Mus., 77,1911, p. 83; Zittel-Eastman Textb. Pal., 1913, p. 328.Diamesopora (part) Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 380, 467; Geol.Minnesota, 3, 1893, p. 330; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 268.Cceloclema alternatum (James).Ceramopora alternata James, Paleontologist, No. 1, 1878, p. 5.Monticulipora (Fistulipora) alternata James and James, Jour. Cincinnati Soc. Nat.Hist., 11, 1888, p. 34, pi. 1, figs. 5-5b.Diamesopora vaupeli Ulrich, Geol. Surv. Illinois, 8, 1890, p. 468, pi. 39, figs. 3,3b; pi. 41, figs. 4-4c.Cceloclema alternatum Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.211.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 33.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 803, pi. 12, figs. 2-2d; pi. 27,fig. 16.Eden (Southgate and McMicken): Cincinnati, Ohio, and vicinity.Plesiotypes.?Cat. No. 4.3292, U.S.N.M. (cotypea of D. vaupeli). 252 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cteloclema cavernosiim Bassler.Coeloclema cavernosa Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 21, pi. 23, fige.10-13.Clinton: Lockport, New York (Rochester); Osgood, Indiana (Osgood).Cofypes?Cat. No. 35471, U.S.N.M.Cteloclema commune (ULrich).Diamesopora communis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 469, pi. 39, 3a,pi. 41, figs. 5, 5b.Coeloclema concentricum Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 212 (not Ceramopora concentrica James).Cceloclema commune Cumingg, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 804, pi. 12, figs. 3, 3c; pi. 27, fig. 17.Eden (Economy-McMicken): Cincinnati, Ohio, and vicinity. ' Cotypes.?Cat. No. 43293, U.S.N.M.Cceloclema concentricum Nickles and Bassler. See Coeloclema commune.Cceloclema imbricata Ulrich. See Diamesopora subimbricata.Cceloclema infrequens Ulrich. See Diamesopora infrequens.Cceloclema osculum Ulrich. See Diamesopora osculum.Cceloclema oweni (James).Fistulipora oweni James, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 21, figs. 2-2g.Monticulipora (Fistulipora) oweni James and James, ibid., 11, 1888, p. 34.?^J. F.James, ibid., 18, 1896, p. 119.Diamesopora oweni Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467.Coeloclema oweni Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 212(gen. ref.).?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 34, pi. 6, figs. 5, 6.Maysville (Mount Auburn): Lebanon, Cincinnati, etc., Ohio; Indiana; Ken-tucky.Coeloclema trentonense (Ulrich).Diamesopora trentonensis Ulrich, Geol. Minnesota, 3, 1893, p. 330, pi. 28, fig. 14;Zittel's Textb. Pal. (Engl, ed.), 1896, p. 268, fig. 4.39.Cceloclema trentonense Nickles and Bassler, Bull. U. S. Geol. Sirrv., 173, 1900,p. 212 (gen. ref.).?Grabau and Shiraer, N. A. Index Fossils, 1, 1907, p. 122,fig. 178.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 328, fig. 463.Black River (Decorah): St. Paul and Cannon Falls, Minnesota.Trenton: St. Paul, etc., Minnesota (Prosser); Trenton Falls, New York; Ottawa,Ontario.Cotypes?Cat. No. 43294, U.S.N.M.C(ELOCTSTIS Schuchert. Genotype: Hemicosmites subglobosus Hall.Hemicosmites Hall (not Von Buch), 20th Rep. New York State Cab. Nat. Hist.,rev. ed., 1868, p. 359.Sphserocystites Jaekel (not Hall), Stammesg. Pelmat., 1, 1899, p. 289, fig. 63;p. 307.Coelocystis Schuchert, Amer. Geol., 32, 1903, p. 234; Smiths. Misc. Coll., 47,1904, p. 246.Coelocystis subglobosus (Hall).Hemicosmites subglobosus Hall, 25th Rep. New York State Cab. Nat. Hist., 1868,(extras Dec, 1864), p. 316, pi. 12 (3), fig. 13; rev. ed., 1868 (1870), p. 359,pi. 12, fig. 13. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 253Coelocystis subglobosus?Continued.Sphserocystites dolomiticus Jaekel, Stammesg. Pelmat., 1, Thecoidea u. Cys-toidca, 1899, p. 289, fig. 63.Coelocystis subglobosus Schuchert, Amer. Geol.,32, 1903, p. 235; Smiths. Misc.Coll., 47, 1904, p. 248, figs. 36, 37.Niagaran (Racine): Racine, Wisconsin; Chicago, Illinois.Plesiotypes.?Csit. Nos. 35061, 35155, U.S.N.M.C(ELOSPIRA Hall. Genotype: Leptocoelia concava Hall.Coelospira Hall, 16th Rep. New York State Cab. Nat. Hist., 1863, p. 59; Trans.Albany Inst., 4, 1863, p. 146; Pal. New York, 4, 1867, p. 328.?Hall andClarke, Pal. New York, 8, pt. 2, 1893, p. 134, figs. 122, 123.?Davidson, Mon.British Foss. Brach., 5, Sil. Suppl., Pal. Soc, 1882, p. 84.?Miller, N. A.Geol. Pal., 1889, p. 340.?Koken, Die Leitfossilien, Leipzig, 1896, p. 241.?Schuchert, Zittel-Eastman Textb . Pal., 1, 1900, p. 338; 2d ed., 1913, p. 338.Leptocoelia Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, p. 108; 12thRep., 1859, p. 32, figs. 1, 2, 4; Pal. New York, 3, 1859, p. 447.?Billings,Canadian Jour., 6, 1861, p. 351.?Hall, Amer. Jour. Sci., 36, 1863, p. 14.?Rominger, Amer. Jour. Sci., 35, 1863, p. 84.?Hall, Trans. Albany Inst., 4,1863, p. 145; Pal. New York, 4, 1867, p. 365.?Davidson, Mon. BritishSil. Brach., Pal. Soc, 1867, p. 138, footnote.?Dall, Amer. Jom-. Conch., 6,1870, p. 98, footnote; 7, 1871, p. 60.?Zittel, Handb. Pal., 1, 1880, p. 704.?Davidson, Mon. British Foss. Brach., 5, App. to Suppl., Pal. Soc, 1884, p.365.?Miller, N. A. Geol. Pal., 1889, p. 348.?Nettleroth, Kentucky FossilShells, Mem. Geol. Surv. Kentucky, 1889, p. 151.?Hall and Clarke, Pal.New York, 8, pt. 2, 1893, p. 136.?Ulrich, Neues Jahrb. f. Min., Geol., Pal.Beilage-Band, 8, 1893, p. 60.?Koken, Die Leitfossilien, Lepizig, 1896, p.249.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 417. (Subgenus ofCoelosi)ira; genotype L. flabellitesHall.)Anoplotheca Grabau, Bull. New York State Mus., 45, 1901, p. 205; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 205.?Schuchert and Maynard, Maryland Geol.Surv., Low. Dev., 1913, p. 433.Coelospira concava tonolowayensis (Swartz).Anoplotheca concava var. tonolowayensis Swartz, Maryland Geol. Surv., Low.Dev., 1913, p. 435, pi. 73, figs. 20, 21.Helderbergian (Keyser): Tonoloway, Maryland.Coelospira coiigregata (Elindle and Breger).Anoplotheca congregata Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1904, p. 444, pi. 9, figs. 18-20.?Foerste, Cincinnati Soc. Nat. Hist.,Jour., 21, No. 1, 1909, p. 20.Cayugan (Kokomo): Logansport and Kokomo, Indiana.Coelospira hemfspherica (Sowerby).Atrypa hemispherica Sowerby, Murchison's Sil. Syst., 1839, p. 639, pi. 20, fig. 7. ? Hall, Pal. New York, 2, 1852, p. 74, pi. 23, fig. 10.?Billings, Geol. Canada,1863, p. 318, fig. 337.Atrypa hemispherica ? Hall, Geol. New York; Rep. Fourth Dist., 1843, p. 73,fig. 4.Leptocoelia hemispherica Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 77.?Nettelroth, Kentucky Fossil Shells, Mem. Geol. Surv. Kentucky,1889, p. 152, pi. 32, figs. 21-23, 36-39.?Foerste, Proc. Boston Soc. Nat. Hist.,24, 1890, p. 325, pi. 6, figs. 18, 19.Atrypa flabella Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 68. 254 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Coelospira hemispherica?Continued.Coelospira ? hemispherica Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 136,pi. 82, figs. 1-4 (? pi. 52, fig. 16).Anoplotheca hemispherica Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 145. ? Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 204, fig. 132; Bull. New YorkState Mua., 45, 1901, p. 205, fig. 132.Anoplotheca (Coelospira) hemispherica Grabau and Shimer, N. A. Index Fossils,1, 1907, p. 350, fig. 455.Silurian: England; Rochester, Sodus, and Walcott, New York; Kentucky;Tennessee; Georgia; Alabama; Nova Scotia (CUnton); The Jumpers, etc.,Anticosti (Anticostian, Gun River-Chicotte),Plesiotype.?Q-2ii. No. 51322, U.S.N.M.Coelospira planoconvexa (Hall).Atrypa plauoconvexa Hall, Pal. New York, 2, 1852, p. 75, pi. 23, fig. 11.?Billings,Geol. Canada, 1863, p. 318, fig. 336.Leptocoelia planoconvexa Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 78.?Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 144.Coelospira? planoconvexa Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 136,pi. 52, fig. 15; pi. 53, figs. 11-16.Anoplotheca planoconvexa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 145.Silurian: Flamborough Head, etc., Ontario (Cataract); Island of Anticosti (GunRiver).Coelospira plicatula (Hall).Atrypa plicatula Hall, Geol. New York, Rep. 4th Dist., 1843, p. 71, fig. 4; Pal.New York, 2, 1852, p. 74, pi. 23, fig. 9.Leptocoelia? plicatula Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 78.Rhynchonella plicata Miller, N. A. Geol. Pal., 1889, p. 369.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 898, fig.Coelospira? plicatula Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 136,pi. 52, figs. 12-14; pi. 82, fig. 5.Anoplotheca plicatula Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 145.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 205, fig. 133; Bull. New YorkState Mus., 45, 1901, pp. 205, 206, fig. 133.?Grabau and Shimer, N. A. IndexFossils, 1, 1907, p. 350, fig. 456.Clinton: Reynales Basin, etc., New York.Coelospira saffordi (Foerste).Anoplotheca (Crelospira) saffordi Foerste, Jour. Geol., 11, 1903, p. 709.Anoplotheca saffordi Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 89, pi. 1,fig. 6.Niagaran (Brownsport) : Near Martins Mills, Bath Springs, etc., Tennessee.CCENITES Eichwald. Genotype: C. juniperinus Eichwald.Coenites Eichwald, Zool. Specialis, pt. 1, Vilnae, 1829, p. 179.?Edwards andHaime, Mon. Polyp. Foss. Terr. Pal. (Arch. Mus. d'llist. Nat., 5), 1851, pp.157, 301.?McCoy, British Pal. Rocks and Fossils, 1854, p. 21.?Pictet, Traitede Pal., 2d ed., 4, 1857, p. 444.?Milne-Edwards, Hist. Nat. Corall, 3, 1860,p. 308.?Duncan, Rep. 41st Meeting British Assoc. Adv. Sci., 1872, p. 130.?Salter, Cat. Camb. and Sil. Foss., 1873, p. 105.?Nicholson and Hinde,Canadian Jour., n. s., 14, 1874, p. 150.?Nicholson, Rep. Pal. Prov. Ontario,pt. 2, 1875, p. 54.?Nicholson and Etheridge, Jour. Linn. Soc, Zool., 13, 1877,p. 361.?Nicholson, Tab. Corals Pal. Period, 1879, p. 130.?Zittel, Handb.Pal., 1, 1880, p. 619.?Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883, p. 444.? BIBLIOGRAPHIC LIST OF GENERA AtSTD SPECIES. 255CCENITES?Continued,Miller, N. A. Geol. Pal., 1889, p. 179.?Sardeson, Neues Jahrb. f. Min., Geol.Pal. Beilage-Band, 10, 1896, pp. 252, 320.?Lambe, Cont. Canadian Pal.,Geol. Surv. Canada, 4, pt. 1, 1899, p. 26.?Pocta, Syst. Sil. Centre Boheme, 8,pt. 2, 1902, p. 255.Limaria Steininger, Mem. See. Geol. France, 1, 1834, p. 339, pi. 20, figs. 6, 6a. ? Dana, Wilkes U. S. Expl. Exped. 1838-1842, 7, Zoophytes, 1846, p. 702.?Hall,Pal. New York, 2, 1852, p. 142.?Rominger, Amer. Jour. Sci. Arts, 2d ser.,34, 1862, p. 390; Geol. Surv. Michigan, 3, pt. 2, 1876, p. 44.Observation.?See Dictyostroma Nicholson for a probable synonym.CoBnItes crassus (Rominger).Limaria crassa Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 45, pi. 18, fig. 1.Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 341, fig.Ccenites crassa Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky, pt. 2, 1885,pi. 4, fig. 6.Cladopora crassa Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899,p. 30.Niagaran: Point of Barques, Lake Michigan; Lake Temiscaming, Quebec; Louis-ville, Kentucky.Coenltes fniticosus (?Steininger) Hall.Limaria fruticosa Steininger, Bull. Soc. Geol. France, 1, 1834, p. 339.?Hall. Pal.New York, 2, 1852, p. 143, pi. 39, figs. 5a, b.Ccenites fruticosa Miller, N. A. Geol. Pal., 1889, p. 179 (gen. ref.).Silurian: England; Lockport, New York (Lockport).Ccenites juniperinus Eichwald.Ccenites juniperinusEichwald, Zool. Spec, 1, 1829, p. 197.?Edwards and Haime,Polyp. Foss. Terr. Pal., 1851, p. 301; Mon. British Foss. Corals, Pal. Soc, 1854,p. 276, pi. 65, figs. 4, 4a.?Nicholson, Pal. Tab. Corals, 1879, p. 134, pi. 6,figs. 5, 5b.?Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 1899, p. 27.Silurian: England; Thorold, Ontario (Niagaran-Lockport).Ccenites laminatus (Hall).Limaria laminata Hall, Pal. New York, 2, 1852, p. 143, pi. 39, figs. 6a-d.?Romin-ger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 45, pi. 18, fig. 2.Ccenites laminata Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 151.Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 55, fig. 25d, e.?Davis,Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 4, fig. 5.Niagaran: Lockport, New York (Lockport); Drummond Island, Lake Huron;Louisville, Kentucky (Louisville).Ccenites lunatus (Nicholson and Hinde).Ccenites lunata Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 151,fig. 2.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 55, fig. 25a-c?Miller, N. A. Geol. Pal., 1889, p. 179, fig. 155.?Lambe, Cont. Can. Pal.,Geol. Surv. Canada, 4, pt. 1, 1899, p. 28.Niagaran: Owen Sound, Ontario; North end of Lake Temiscaming, Quebec.Anticostian (Jupiter River) : The Jumpers, Anticosti.Coenites ramulosus (Hall).Limaria ramulosa Hall, Pal. New York, 2, 1852, p. 142, pi. 39, figs. 4a-d.?Rom-inger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 44.Ccenites ramulosa Miller, N. A. Geol. Pal., 1889, p. 179 (gen. ref.).Niagaran (Lockport) : Lockport, New York. 256 BULLETIN" 92_, UNITED STATES NATIONAL MUSEUM.Coenites verticillatus (Winchell and Marcy).Cladopora verticillata Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1,1865, p. 84.Limaria verticillata Rominger, Geol. Surv. Mich., 3, pt. 2, 1876, p. 45 (gen. ref.).Coenites verticillata Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, pi. 46, figs. 1-4.Niagaran: Chicago, Illinois (Racine); Louisville, Kentucky (Louisville); Ten-nessee (Brown.sport).CcENOGRAPTUs Hall. See Nemagraptus Emmons.CcENOGRAPTUs (?Pleurograptus? Pterograptus) divergens Hall. See Amphi-graptas divergens.CCENOGRAPTUS ExiLis Lapworth. See Nemagraptus exilis.CCENOGRAPTUS GRACILIS Hall. See Nemagraptus gracilis.CCENOGRAPTUS (Pleurograptus) LiNEA:ais Roomcr and Freeh. See PleirrograptuaLinearis.CCENOGRAPTUS suRCULARis Hall. See Nemagraptus gracilis surcularis.CcENOSTOMA Spencer. See Coenostroma Winchell,CoENOSTOMA BOTRYOiDEUM Spencer. See Clathrodictyou striatellum.CcENOSTOMA coNSTELLATUM Spenccr. See Stromatopora constellata.Coenostroma constellatum of authors. See Stromatopora constellata.CcENOSTROMA GALTENSE Dawsou. See Stromatopora galtensis.COLEOLUS Hall. Genotype: C. tenuicinctus Hall.Coleolus Hall, Pal. New York, 5, pt. 2, 1879, p. 184.?Zittel, Handb. Pal., 2,1882, p. 315.?Miller, N. A. Geol. Pal., 1889, p. 389.?Whidborne, Mon. Dev.Fauna South England, 3, Pal. Soc, 1896, p. 38.?Koken, Die Leitfossilien,Leipzig, 1896, p. 96.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 283.Coleolus clintonensis Foerste.Coleolus Clintonensis Foerste, Geol. Surv. Ohio, 7, 1893, p. 547, pi. 37A, fig. 11.Upper Medinan (Brassfield) : Soldiers' Home, near Dayton, Ohio.Coleolus lowensis James.Coleolus iowensis James, Amer. Geol., 5, 1890, p. 355.Richmond (Maquoketa) : Illinois and Iowa.Coleolus spinulus Hall.Coleolus spinulus Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p.322, pi. 33, fig. 8; Trans. Albany Inst., 10, 1883, p. 74.Niagaran (Waldron): Waldron, Indiana.COLEOPRION Sandberger. Genotype: C. gracilis SandbergerColeoprion Sandberger, Neues Jahrb. f. Min., etc., 1847, p. 24.?^^VoodwardMan. Mollusca, pt. 2, 1854, p. 206.?Pictet, Traite de Pal., 2d ed., 3, 1855p. 320.?Ludwig, Paleontographica, 11, 1864, p. 317.?Barrande, Syst. SilCentre Boheme, 3, 1867, p. 108.?Hall, Pal. New York, 5, pt. 2, 1879, p183.?Zittel, Handb. Pal., 1882, p. 315.?Miller, N. A. Geol. Pal., 1889, p390.?Koken, Die Leitfossilien, Leipzig, 1896, p. 96. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 257Coleoprlon minuta Walcott.Coleoprion minuta Walcott, Mon. U, S. Geol. Surv., 8, 1884, p. 85, pi. 11, figs.17, 17a; pi. 12, fig. 21.Upi>er Pogonip: Lone ilountain and Pogonip Ridge, Nevada.Colypes.?Cat. No. 17373, U.S.N.M.CoLPocERAs Hall. See Endoceras Hall.COLPOMTA XJlricli. Genotype: C. constricta Ulrich.Colpomya Ulrich, Geol. Surv. Ohio, 7, 1893, p. 659; Geol. Minnesota, 3, pt. 2,1894, p. 522.?Miller, N. A. Geol., Pal., 2d App., 1897, p. 780.?Grabau andShimer, N. A. Index Fossils, 1, 1909, p. 516.Colpomya abrupta Savage.Colpomya abrupta Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 94, pi. 5, fig. 27.Upper Medinan (Edgewood): Near Edgewood, Missouri.Colpomya constricta Ulrich.Colpomya constricta Ulrich, Geol. Surv. Ohio, 7, 1893, p. 659, pi. 52, figs. 17-19;Geol. Minnesota, 3, pt. 2, 1894, p. 523, fig. 41.?Grabau and Shimer, N. A.Index Fossils, 1, 1909, p. 516, figs. 695a, b.Trenton (Perryville) : Frankfort, Kentucky.Cotypes.?Cat. No. 46120, U.S.N.M.Colpomya demissa Ulrich.Colpomya demissa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 524, pi. 36, figs. 21, 22.Black River (Decorah): Chatfield, Minnesota.Eolotype.?Cat. No. 46121, U.S.N.M.Colpomya faba (Emmons).Nuculites faba Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 385, fig. 5.Lyonsia faba Conrad in Emmons, Amer. Geology, 1, pt. 2, 1855, p. 172, pi. 14,figs. 14, 15.Modiolopsis faba Hall, Pal. New York, 1, 1847, p. 158, pi. 35, figs. 6a-d.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 408, fig.?Weller, Geol. Surv.New Jersey, Pal., 3, 1903, p. 169, pi. 11, figs. 13-15.?Grabau and Shimer,N. A. Index Fossils, 1, 1909, p. 511.Trenton: Watertown, etc., Middleville, New York; New Jersey; etc.Colpomya faba pusilla Foerste.Modiolopsis faba Hall, Pal. New York, 1; 1847, pi. 82, figs. 4a-b.Colpomya faba pusilla Foerste, Bull. Sci. Lab. DenisonUniv., 17, 1914, p. 275, pi.2, fig. 10; pi. 3, figs. 4a, b.Cincinnatian (Pulaski): Pulaski, New York; Chambly, Quebec.COLUMNARIA Goldfuss. Genotype: C. alveolata Goldfuss.Columnaria Goldfuss, Petrefacta Germanise, 1, 1826, p. 72.?Eaton, Geol. Textb.,2d ed., 1832, p. 40.?Steininger, Mem. Soc. Geol. France, 1, 1834, p. 343.?Koninck, Desc. Animaux Fossiles, Liege, 1842-1844, p. 25.?Dana, Amer. Jour.Sci. Arts, 2d eer., 1, 1846, p. 188; Wilkes U. S. Expl. Exped., 1838-1842, 7.Zoophytes, 1846, p. 362, pi. 26, figs. 9, 9a, 9b, 10.?McCoy, Ann. Mag. Nat,Hist., 2d ser., 3, 1849, p. 121.?D'Orbigny, Prodr. de Pal., 1, 1849, p. 25.?Edwards and Haime, Mon. Polyp. Foss. Terr. Pal., 1851 (Arch Mus. Hist.Nat., 5), pp. 159, 308.?McCoy, Cent. British Pal., 1854, p. 90; British Pal.,Rocks and Foss., 1854, p. 92.?Bilhngs, Candian Nat. Geol., 1, 1856, p. 124;3, 1858, p. 420; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 166; Pictet,84243??Bull. 92?15 17 258 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.COLUMNARIA?Continued.Traite Pal., 2d ed., 4, 1857, p. 448.?Milne-Edwards, Hist. Nat. Corall., 3,18G0, p. 317.?Goldfuss, Petrefacta, 2d ed., pt. 1, 1862, p. 67.?Ludwig,Paleontographica, 10, 1862, p. 191.?Verrill, Amer. Jour. Sci., 3d ser., 3, 1872,p. 191.?Duncan, Rep. 4l3t Meeting British Assoc. Adv. Sci., 1872, p. 132.?Verrill, Ann. Mag. Nat. Hist., 4th ser., 9, 1872, p. 360.?Nicholson. Rep. 44thMeeting British Assoc. Adv. Sci., Notes and Abstracts, 1875, p. 89.?Romin-ger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 89.?Nicholson, Tab. Corals Pal.Period, 1879, p. 191?Roemer, Leth. geog., pt 1, Leth. Pal., 1883, p. 463.?Miller, N. A. Geol. Pal., 1889, p. 179.?Freeh, Paleontographica, 37, 1890,p. 84.?Sherzer, Amer. Geol., 7, 1891, pp. 278-283.?James, Jour. CincinnatiSoc. Nat. Hist., 15, pt. 3, 1892, p. 97.?Weissermel, Zeits. d. d.geol. Gesell.,49, 1897, pp. 866, 868, 880.?Zittel-Eastman Textb. Pal. 1., 1900, p. 79.?Lambe, Cont. Canadian, Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 97. ? Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 71.?Cuminga, 32d Ann,Rep. Geol. Nat. Res. Indiana, 1908, p. 699.?Zittel-Eastman Textb. Pal., 2ded., 1913, p. 87.Favistella Dana, Wilkes U. S. Expl. Exped., 1838-1842, 7, Zoophytes, 1846, p.538.?D'Orbigny, Prodr. de Pal., 1, 1849, p. 24.?Emmons, Amer. Geology,1, pt. 2, 1855, p. 229.?Hall, Pal. New York, 1, 1847, p. 275; ibid., 2, 1852, p.120.?Nicholson, Geol. Surv. Ohio, Pal., 2, 1875, p. 184; Rep. 44th MeetingBritish Assoc. Adv. Sci., Notes and Abstracts, 1875, p. 89; Rep. Pal. Prov,Ontario, pt. 2, 1875, p. 21; Trans. Royal. Soc. Edinburgh, 27, 1876, p. 249(obiter); Tab. Corals Pal. Period, 1879, p. 192.?Zittel, Handb. Pal., 1, 1879,p. 230.?Miller, N. A. Geol. Pal., 1889, p. 188. (Genotype: F. stellata Hall.)Palseophyllum Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 168;Canadian Nat. Geol., 3, 1858, p. 422.?Nicholson, Geol. Surv. Ohio, Pal., 2,1875, p. 219.?Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1878,pp. 68, 69.?Zittel, Handb. Pal., 1, 1879, p. 228.?Miller, N. A. Geol. Pal.,1889, p. 198.?Sherzer, Amer. Geol., 7, 1891, pp. 284-289.?James, Jour. Cin-cinnati Soc. Nat. Hist., 15, pt. 4, 1893, p. 146.?Lambe, Ottawa Naturalist,12, 1899, p. 217. (Genotype: Palseophyllum rugosum Billings.)CoLtTMNARiA ALVEOLARis Hitchcock. See Columnaria alveolata.Columnaria alveolata Goldfuss.Columnaria alveolata Goldfuss, Petrefacta Germanise, 1, 1826, p. 72, pi. 24, figs.7a-c; 2d ed., pt. 1, 1862, p. 68.?Edwards and Haime (part), Mon. Polyp.Foss. Terr. Pal. (Arch. Mus. Hist. Nat., 5), 1851, p. 309.?Emmons, Amer.Geology, 1, pt. 2, 1855, p. 229, pi. 4, fig. 10; Man. Geol., 1860, p. 94, fig. 80.?Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 317.?Chapman, CanadianJour., n. 8., 6, 1861, p. 510, fig. 78; 8, 1863, p. 197, fig. 168; Expos. Min. Geol.Canada, 1864, p. 104, fig. 78; p. 169, fig. 168.?Lincklaen, 14th Rep. NewYork State Cab. Nat. Hist., 1861, pi. 1, fig. 7.?Nicholson, Tab. Corals Pal.Period, 1879, p. 195, pi. 10, figs. 1, la.?Roemer, Leth. geog., pt. 1, Leth. Pal.,1883, p. 464, fig. 113.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 153, fig.?Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 6, fig. 3;pi. 7, fig. 2.?Miller, N. A. Geol. Pal., 1889, p. 180, fig. 157.?James, Jour.Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 98.?Whiteaves, Pal. Foss.,Geol. Surv. Canada, 3, pt. 3, 1897, p. 151.?Lambe, Cont. Canadian Pal.,Geol. Surv. Canada, 4, pt. 2, p. 98, pi. 6, figs. 1, la.?Foerste, Amer. Geol., 31,1903, p. 343.?Hayes and Ulrich, U. S. Geol. Surv., fol. 95, illus. sheet, 1903,fig. 25.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 71; fig. 110.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 703, pi. 1,figs. 4, 4a.?Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 312, pi. 11,fig. 3. BIBLIOGRAPHIC LIST OP GENEEA AND SPECIES. 259Columnaria alveolata?Continued.Columnaria sulcata Eaton, Geol. Textb., 2d ed., 1832, p. 4, pi. 5, fig. 51.?Clarke,11th Kep. State Geol. New York, 1, 1894, p. 35; 45th Rep. New York StateMus. 1894, p. 351.Columnaria multiradiata Castelnaii, Essai Syst. Sil. Amer. Sept., 1843, p. 44, pi.19, fig. 1.Columnaria Blainvilli Billings, Canadian Nat. Geol., 3, 1858, p. 421; Geol. Surv.Canada, Rep. Progr. for 1857, 1858, p. 166.Favistella stellata Hall, Pal. New York, 1, 1847, p. 275, pi. 75, figs, la-c.?Em-mons, Amer. Geology, 1, pt. 2, 1855, p. 229, fig. 81.?Billings, Geol. Canada,Geol. Surv. Canada, 1863, p. 206, fig. 202.?Nicholson, Rep. Pal. Prov. Onta-rio, pt. 2, 1875, p. 22; Geol. Surv. Ohio, Pal. 2, 1875, p. 185.?White, Rep.U. S. Geogr. Surv. West 100th Merid., 4, 1877, p. 67, pi. 4, figs. 6a-c; 11th Ann.Rep. Indiana Dep. Geol., Nat. Hist., 1882, p. 378, pi. 44, figs. 1, 2.?Hall, 12thRep., ibid., 1883, p. 247, pi. 1, figs. 2-4.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 236, figs.?Miller, N. A. Geol. Pal., 1889, p. 188, fig. 173.Favistella alveolaris Dana, Wilkes U. S. Expl. Exped. 1838-1842, 7, Zoophytes,1846, p. 538.Columnaria stellata Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 91, pi. 28,fig. 1; pi. 34, fig. 3.?Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky,pt. 2, 1885, pi. 7, fig. 1.?Keyes, Missouri Geol. Surv., 4, 1894, p. 116, pi. 13,fig. 3.Stones River-Richmond: An abundant and widespread fossil of the UnitedStates and Canada.Columnaria alveolata-calycin.\ Foerste. See Columnaria calicina.Columnaria alveolata discreta Foerste.Columnaria alveolata discreta Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914,p. 124.Black River: Ottawa, Cloche Island, etc., Canada.Columnaria alveolata interventa Foerste.Columnaria alveolata interventa Foerste, Jour. Cincinnati Soc. Nat. Hist., 21,1914, p. 122, pi. 4, figs. la-j.Trenton (Cynthiana): Near Brannon, etc., central Kentucky.Columnaria alveolata minima Foerste.Columnaria alveolata minima Foerste Jour. Cincinnati Soc. Nat. Hist., 21, 1914,p. 123.Trenton (Cynthiana) : Near New Forest, Kentucky.Columnaria alveolata rigida (Billings).Columnaria rigida Billings, Canadian Nat. Geol., 3, 1858, p. 421; Geol. Surv.Canada, Rep. Progr. for 1857, 1858, p. 167.Richmond: Lake St. John, Canada.Columnaria Blainvilli Billings. See Columnaria alveolata.Columnaria calicina (Nicholson).Favistella (Columnaria) calicina Nicholson, Rep. 44th Meeting Brit. Assoc. Adv.Sci., Notes and Abstracts, 1874, p. 89.Favistella calicina Nicholson, Rep. Prov. Ontario, pt. 2, 1875, p. 24, fig. 9.Columnaria calicina Nicholson, Tab. Corals Pal. Period, 1879, p. 197, pi. 10, figs.2, 2a; p. 198, fig. 28, la, b.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p.464.?James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 98.?Lambe,Cent. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 102, pi. 6, fig. 4. 260 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Columnaria callcina?Continued.Columnaria alveolata-calycina Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909,p. 313.Columnaria herzeri Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 91.Richmond: Cape Smyth, Lake Huron; Credit River at Streetsville, Ontario;east of White Cliff , Gamache Bay, Anticosti; Ohio; Kentucky; Indiana.Columnaria carterensls Safford.Columnaria carterensis Safford, Geol. Tennessee, 1869, p. 285.Black River (Carters): Carters Creek, etc., central Tennessee.Columnaria divergens Troost. Not recognized.Columnaria divergens Troost, 5th Geol. Rep. Tennessee, 1840, p. 73.Mountain limestone: Near Nashville, Tennessee.Columnaria erratica Billings. See Columnaria (Palseophyllum) stokesi.Columnaria Goldfussi Billings. SeeLyoporagoldfussiandNyctoporabillingsii.Columnaria halll Nicholson.Columnaria Emmons, Geol. New York, Rep. 2d dist., 1842, p. 276, fig. 2.Columnaria alveolata Hall, Pal. New York, 1, 1847, p. 47, pi. 12, figs, la-lc. ? Billings, Canadian Nat. Geol., 1, 1857, p. 124, figs. 9, 10.?Nicholson, Pal.Prov. Ontario, 1863, pp. 8, 24, figs. 2, 9.?Billings, Geol. Canada, Geol. Surv.Canada, 1863, p. 139, fig. 70.?Rominger, Foss. Corals Michigan, 1876, p. 89,pi. 34, figs. 1, 2, 4.Columnaria(?) Halli Nicholson, Tab. Corals Pal. Period, 1879, p. 200, fig. 28, 2;p. 201, fig. 29, pi. 10, figs. 3, 3a.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883,p. 465.?Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 85, pi. G,figs. 14-16.?Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 2, 1901,p. 100, pi. 6, figs. 2, 2a.?Foerste, Amer. Geology, 31, 1903, pp. 343, 345.?Hayes and Ulrich, U. S. Geol. Surv., folio 95, illust. sheet, 1903, fig. 47.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 71.Black River and Trenton: Canada; New York; Michigan; Kentucky; Tennessee;Minnesota; Illinois; Iowa.Plesiotype.?Csit. No. 35403, U.S.N.M. (Hayes and Ulrich).Columnaria? helderberglae Swartz.Columnaria? helderbergise Swartz, Maryland Geol. Siurv., Low. Dev., p. 207, pi.21, figs. 10, 11.Helderbergian (Keyser): Warrior Mountain, Alleghany County, Maryland.Columnaria herzeri Rominger. See Columnaria calicina.Columnaria injequalis Hall. See Prismatophyllum insequale.Columnaria incerta Billings. See Fletcheria incerta.Columnaria mamillaiis Castelnau. Not recognized.Columnaria mamillaris Castelnau, Essai Syct. Sil. I'Amerique Septent., 1843, p.45, pi. 19, fig. 3.Silurian?: Shores of Lake Huron.Columnaria multiradiata Castelnau. See Columnaria alveolata.Columnaria parva Billings. See Stylai-aea parva.Columnaria rigida Billings. See Columnaria alveolata rigida.Columnaria rugosa Lambe. See Columnaria (Palseophyllum) stokesi. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 261CoLUMNARiA STELLATA Rominger. See Columnaria alveolata.Columnaria (Palseophyllum) stokesi (Edwards and Haime).Lithostrotion Stokesi Edwards and Haime, Mon. Polj^. Fobs. Terr. Pal., 1851, p.,440, pL 20, fig. 2.Diphyphyllum Stokesi Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897p. 152, pi. 17, figs. 5a, b.Sarcinula? obsoleta Ilall, Geol. Lake Sup. Land Dist., Foster and WMtney's Rep.,1851, p. 213, pi. 29, figs. 2, a, b.Columnaria erratica Billings, Canadian Nat. Geol., 3, 1858, p. 421; Geol. Surv.Canada, Rep. Progr. for 1857, 1858, p. 167.Palseophyllum rugosum Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858,p. 168; Canadian Nat. Geol., 3, 1858, p. 422.Columnaria rugosa Lambe, Ottawa Naturalist, 12, 1899, p. 217; Contr. Can. Pal.,Geol. Surv. Canada, 4, pt. 2, 1901, p. 101, pi. 6, figs. 3, 3a, b.Richmond: Lake Winnipeg, Lake St. John, etc., Canada; Green Bay, Wisconsin.Columnaria sulcata Eaton. See Columnaria alveolata.Columnaria? Sutherland! Salter.Columnaria Sutherlandi Salter, Sutherland's Jour. Voyage in Baffin's Bay, etc.,2, 1852, p. 231, pi. 6, fig. 8.Silurian (?): Seal Island, Wellington Channel, Arctic America.Columnaria (Palseophyllum) thomi (Hall).Columnaria thomi Hall, Rep. U. S. Mexican Bound. Surv., Emory, 1857, pi. 20,figs. la-d.Cyathophylloides thomii Walcott, Pal. Univ., eer. 1, fas. 2, 1903, pi. 29.Richmond: El Paso, Texas.Holotype.?Cat. No. 9851, U.S.N.M.Observation.?Probably the same as Columnaria (Palaeophyllum) stokesi(Edwards and Haime).Colunmaria troosti Castelnau. Not recognized.Columnaria Ti'oosti Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p. 44,pi. 19, fig. 2.Silurian(?): Kentucky.Columnaria vacua Foerste.Columnaria(?) halLi James, Jour. Cincinnati Soc. Nat. Hist., 15, pt. 3, 1892, p. 99.Columnaria vacua Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 313, pi. 11,fig. 2.Richmond: Ohio, Indiana, Kentucky, etc.Observation.?This name has been proposed for the Richmond form of Colum-naria closely related to C. halli which is restricted to Mohawkian strata. Some ofthe references under C. halli doubtless refer iu part to C. vacua.CoLUMNOPORA Nicholson. See Calapcecia Billings.CoLtJMNOPORA RAYi Davis. See Calapcecia cribiformis.CoMAROCYSTis Hacckel. See Comarocystites Billings.COMAROCTSTITES Billings. Genotype: C. punctatus BilKngs.Comarocystites Billings, Canadian Jour., 2, 1854, pp. 268, 269; Geol. Surv.Canada, Rep. Progr. for 1853-56, 1857, p. 288; Geol. Surv. Canada, doc. 3,1858, p. 61.?Chapman, Expos. Min. Geol. Canada, 1864, p. 109.?Meek andWorthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 143; Geol. Surv. 262 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.COMAROCTSTITES?Continued.Illinois, 3, 18G8, p. 291.?Zittel, Handb. Pal., 1, 1879, p. 418.?Miller, N. A.Geol. Pal., 1889, p. 233.?Jaekel, Zeits. d. d. geol. Gesell. 52, 1900, p. 676.?Zittel, Grundziige Pal., 1, p. 184.?Grabaix and Shimer, N. A. Index Fossils,2, 1910, p. 472.Comarocystis Ilaekel, Amphorideenu. Cystoideen, 1896, p. 70, pi. 1, figs. 4-AC.?Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 55.Comarocystites obconicus (Meek and Worthen).Comarocystites Shumardi var. obconicus Meek and Worthen, Proc. Acad. Nat.Sci. Philadelphia, 18G5, p. 144; Geol. Smv. Illinois, 3, 1868, p. 294, pi. 1,fig. 2a, b.Comarocystites obconicus Miller, N. A. Geol. Pal., 1889, p. 234.?Keyes, MissouriGeol. Surv., 4, p. 132, pi. 18, fig. 1.Black Paver (Kimmswick): Cape Girardeau, Missouri.Comarocystites punctatus Billings.Comarocystites punctatus Billings, Canadian Jour., 2, 1854, p. 270, figs. 1-3;Geol. Surv. Canada Rep. Progr. for 1853-56, 1857, p. 288; Geol. Surv. Canada,dec. 3, 1858, p. 61, pi. 5, figs. 1, lb, 2, 2b; also footnote, pi. 5.?Grant, Trans.Ottawa Field Nat. Club, 1, 1880, p. 29, pi. 1, figs. 1-5.?Grabau and SMmer,N. A. Index Fossils, 2, 1910, p. 472.Comarocystis punctata Haeckel, Amphorideen u. Cystoideen, 1896, p. 70, pi. 1,figs. 4-4c.Trenton (Curdsville): Ottawa, Ontario.Comarocystites shumardi Meek and Worthen.Comarocystites Shumardi Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia,1865, p. 143; Geol. Surv. Illinois, 3, 1868, p. 292, fig.; pi. 1, figs, la, b.?Miller, N. A. Geol. Pal., 1889, p. 233, fig. 270.?Keyes, Missouri Geol. Surv.,4, 1894, p. 132, pi. 18, fig. 2.?Jaekel, Zeits. d. d. geol. Gesell., 52, 1900, p. 676.Black River (Kimmswick): Cape Girardeau, Mssouri.Comarocystites Shumardi var. obconicus Meek and Worthen. See Comarocystitesobconicus.COMPSOCRINUS Miller. Genotype: Glyptocrinus harrisi Miller.Compsocrinus Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, pp. 219, 233.?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1885, p. 180(Rev. Pal., 3, p. 104).?Miller, N. A. Geol. Pal., 1889, p. 234.?Wachsmuthand Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 516.?Bather,Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 165, fig. 78, 4. ? Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 194.Compsocrinus harrisi (Miller).Glyptocrinus harrisi Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 74, pi. 1,figs. 4, 4a.Compsocrinus harrisi Miller, ibid., 6, 1883, p. 234, pi. 7, figs. 4, 4a; N. A. Geol. Pal.,1889, p. 234, figs. 271, 272.?Wachsmuth and Springer, Mem. Mus. Comp.Zool., Harvard, 21, 1897, figs. 8a, b.?Bather, Treatise on Zool., pt. 3, Ecliino-derma, London, 1900, p. 105, fig. 78.Mariacrinus Harrisi Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia,1885, pp. 311, 326 (Rev. Pal., pt. 3, p. 104).?James, Jour. Cincinnati Soc.Nat. Hist., 19, 1897, p. 118.Richmond (Liberty): Waynesville, Ohio.Holotype and plesiotype.?Cat. No. 40759, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 263Compsocrinus miamlensls (Miller).Glyptocrinus miamiensis Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 34,pi. 1, fig. 1; 6, 1883, p. 224.?James, ibid., 19, 1897, p. 115.Compsocrinus miamiensis Wachsmuth and Springer, Mem. Mua. Comp. Zool.,Harvard, 21, 1897, p. 518, pi. 21, figs. 7a, b.Richmond (Liberty): Waynesville, Ohio.Eolotype.?CAt. No. 40760, U.S.N.M.CoNASPis owENi Hall. See Ptychoparia oweni.CoNCHicoLiTES Nicholson. See Comulites Schlotheim.CONCHIDIUM Linnaeus. Genotype: C. biloculare Linnaeus.Conchidium Linnaeus, Mus. Tessinianum, 1753, p. 90; Syst. Nat., XI, 2, 1760,p. 163.?(Ehlert, Fischer's Manuel de Conchyliologie, 1887, p, 1311.?Halland Clarke, Pal. New York, 8, pt. 2, 1893, p. 231; 13th Ann. Rep. NewYork State Geol., 1895, p. 842.?Schuchert, Zittel-Eastmau Textb. Pal., 1,1900, p. 321.?drabau and Shimer, N. A. Index Fossils, 1, 1907, p. 273.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 394.Helmintholitus Linnteus, Sys. Nat., 4, 1766, p. 163.Pentamerus Sowerby (not Pentamera Dumeril, 1806), Mineral Conchology, 1,1813, p. 73.G}T)idia Dalman, Kongl. Svenska Vet.-Akad. Handl., for 1827, 1828, pp. 93, 100.?Zittel, Handb. Pal., 1, 1880, p. 694.?Koken, Die Leitfossilien, Leipzig,1896, p. 244, fig. 206.Pentamerus Billings, Canadian Jour., 6, 1861, p. 269.?Hall, 20th Rep. NewYork State Cab. Nat. Hist., 1867, p. 163; Pal. New York, 4, 1867, pp. 369,373.?Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv.,1889, p. 52.Antirhynchonella Quenstedt, Petref. Deutschlands, Brach., 1871, p. 231.Zdimir Barrande, Sysfc. Sil. Boh^me, 6, 1881, p. 171.Conchidium arcticum Holtedahl.Conchidium arcticum Holtedahl 2d Arct. Exp. "Fram," 1898-1902, No. 32, 1914,p. 5, pi. 6, figs. 5-7.Niagaran: Baadkap, North Devon, Arctic America.Conchidium biloculare Linnaeus.Conchidium biloculare Linnaeus, Syst. Nat., XI, 2, 1760, p. 163.?Hall andClarke, Pal. New York, 8, pt. 2, 1893, p. 233, pi. 6, figs. 11-14.- Schuchert,Bull. U. S. Geol. Surv. 87, 1897, p. 185.Pentamerus conchidium Emerson, Geol. Frobischer Bay; Nourses Narr. Hall'sArctic Exped., 1879, p. 578.?Salter, Sutherland's Jour. Voyage in Baffin'sBay, etc., 2, App., p. 225, 1852, pi. 5, figs. 9, 10.Silurian: Europe; Rescue Harbor, Arctic America.Conchidium colletti (Miller).Pentamerus colletti Miller, 17th Rep. State Geol. Indiana, 1891, p. 77, pi. 13,figs. 5, 6 (ad. sheets, 1891, p. 77).Conchidium colletti Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235, pi.66, figs. 16, 17.?Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 30.Cayugan (Kokomo): Kokomo, Indiana.Conchidium crassiplica Hall and Clarke.Conchidium crassiplica Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pp. 235,369, pi. 66, figs. 24, 25; 48th Rep. New York State Mus. for 1895, 2, 1897, p.367, pi. 11, figs. 3, 4.; 14th Rep. State Geol. New York for 1894, 1897, p.367, pi. 11, figs. 3, 4.Niagaran (Louisville) : Near Louisville, Kentucky. 264 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CoNCHiDiuM CRASsiRADiATUM Scliucliert. See Conchidium crassoradius.Conchidium crassoradius (McChesney).Pentamerus crassoradius McChesney, Descr. New Pal. Foss., 1861, p. 87.Conchidium crassiradiatum Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 185.Niagaran (Racine): Milwaukee, Wisconsin.Conchidium decussatum (Whiteaves).Pentamerus decussatus Whiteaves, Canadian Rec. Sci., 1891, p. 295, pi. 3, figs,3, 4.?Calvin, Bull. Lab. Nat. Hist., State Univ. Iowa, 11, 1892, p. 164, pi.11, figs. 1-3; pi. 12, fig. 2.Conchidium decussatum Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235,pi. 65, figs. 1, 2; pi. 66, fig. 15.?Whiteaves, Geol. Surv. Canada, Pal. Foss.,3, pt. 4, 1906, p. 293, pi. 26, figs. 1, 2.Niagaran: Grand Rapids of the Saskatchewan, etc., Canada.Conchidium exponens Hall and Clarke.Conchidium exponens Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 66.figs. 6-9; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 366, pi. 10,figs. 20-23; 14th Rep. State Geol. New York for 1894, 1897, p. 366, pi. 10,figs. 20-23.Niagaran (Louisville) : Louisville, Kentucky.Conchidium georglse Hall and Clarke,Conchidium georgisG Hall and Clarke, Pal. New York, 8, pt. 2, 1895, p, 369, pL66, figs. 18, 19; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 367, pi.11, figs. 10, 11; 14th Rep. State Geol. New. York for 1894, 1899, p. 367, pi.11, figs. 10, 11.Clinton: Trenton, Georgia.Conchidium greenii Hall and Clarke.Conchidium greenii Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pp. 235, 368,pi. 66, figs. 20-22; 48th Rep. New York State Mus. for 1895, 2, 1897, p. 367,pi. 11, figs. 5-7; 14th Rep. State Geol. New York for 1894, 1897, p. 367, pi.11, figs. 5-7.Niagaran (Racine) : Near Milwaukee, Wisconsin.Conchidium knappi (Hall and ^Tutfield).Pentamerus knappi Hall and Whitfield, 24th Rep. New York State Cab. Nat,Hist., 1872, p. 184; 27th Rep., 1875, pi. 10, figs. 10-12.?Nettelroth KentuckyFoss. Shells, Mem. Kentucky Geol. Surv., 1889, p. 55, pi, 28, figs, 1-4.Conchidium knappi Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235, pi.64, figs. 11-13.Niagaran (Louisville): Louisville, Kentucky; Tennessee,Plesiotype.?Csit. No, 51352, U.S.N.M.Conchidium laquoatum (Conrad).Pentamerus laqueatus Conrad, Proc. Acad. Nat. Sci. Philadelphia, 7, 1855, p.441.?Hall, 42d Rep. New York State Mus. Nat. Hist., 1889, p. 384 (foot-note).Pentamerus nobilis Emmons, Man. Geol., 1860, p. 107, fig.Conchidium laqueatus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 232,fig. 168; p. 234, pi. 65, figs. 3-9.?Kindle and Breger, 28th Rep. Dep. Geol,Nat. Res. Indiana, 1904, p. 434, pi. 3, figs. 1, 2; pi. 4, fig. 3; pi. 6.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 274.Niagaran: Delphi, Huntington, Georgetown, etc., Indiana. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 265Conchldium legoense Foerste.Concliidiiim legoensis Foerste, Jour. Geol., 11, 1903, p. 711; Bull. Sci. Lab. Deni-son Univ., 14, 1909, p. 69, pi. 2, fig. 36A, B.Niagaran (Brownsport) : Short Creek, northeast of Lego, Tennessee.Conchidium lindenense Foerste.Conchldium lindenensis Foerste, Jour. Geol., 11, 1903, p. 711.?Bull. Sci. Lab.Denison Univ., 14, 1909, p. 69, pi. 2, fig. 35A, B.Niagaran (Brownsport): Coon Creek, near Linden, Tennessee.Conchldium littonl (Hall).Pentamerua littoni Hall, Pal. New York, 3, 1859, p. 262.?Hall and Whitfield,24th Rep. New York State Cab. Nat. Hist., 1872, p. 186; 27th Rep., 1875,pi. 10, figs. 8, 9.?Nettelroth, Kentucky Foss. Shells, Mem. Kentucky Geol.Surv., 1889, p. 58, pi. 27, figs. 12, 13.Conchidium littoni Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 64, figs.9, 10.?Foerste, Jour. Geol., 11, 1903, p. 711 (loc. occ).Concliidium cf. littoni Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Rea.Indiana, 1904, p. 435, pi. 3, figs. 3-6; pi. 4, figs. 1, 2, 4; pi. 5, figs. 4, 5.Niagaran: Hardin County, Tennessee (Brownsport); Louisville, Kentucky (Louis-ville); ?Georgetown, Indiana.Conchldium multicostatum (Hall).Pentamerus multicostatus Hall, Geol. Surv. Wisconsin, Rep. Progr., 1860, p. 1;20th Rep. New York State Cab. Nat. Hist., 1867, p. 373, pi. 13, figs. 22-24.Conchidium multicostatum Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi.64, fig. 6; pi. 66, fig. 10.Conchidium cf . multicostatum Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1904, p. 435, pi. 6, fig. 3.Niagaran: Wauwatosa and Waukesha, Wisconsin (Racine and Guelph); ConnorsMills, Hamilton County, Indiana (Noblesville).Conchldium nettelrothl Hall and Clarke.Pentamerus knightii Nettelroth (not Sowerby), Kentucky Fossil Shells, Mem.Geol. Surv. Kentucky, 1889, p. 57, pi. 29, figs. 1, 2, 17. ?Conchidium nettelrothi Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 234.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 273, fig. 332.Onondaga? (?Niagaran): Louisville, Kentucky.Cotypes.?Cat. No. 51312, U.S.N.M.Conchldium nyslus (Hall and Whitfield).Pentamerus nysius var. crassicosta Hall and Whitfield, 24th Rep. New YorkState Cab. Nat. Hist., 1872, p. 184; 27th Rep., 1875, pi. 10, figs. 4-7.?Nettelroth, Kentucky Fossil Shells, Mem, Kentucky Geol. Survey, 1889, p.60, pi. 28, figs. 5-8.Pentamerus nysius var. tenuicostatus Nettelroth, ibid., 1889, p. 60.Conchidium nysius Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235, pi.64, figs. 1, 8, 27.Niagaran (Louisville): Louisville, Kentucky; Tennessee.Conchidium obsolotum Hall and Clarke.Conchidium obsoletum Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 67,figs. 8, 9; 4Sth Rep. New York State Mus. for 1895, 2, 1897, p. 366, pi. 11, figs. 1,2; 14th Rep. Ctato Ccol. New York for 1894, 1897, p. 366, pi. 11, figs. 1, 2.Niagaran (Guelph): Genoa, Ottawa County, Ohio. 266 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Conchldium occidentale Hall.Pentamenis occidentalis Hall, Pal. New York, 2, 1852, p. 341, pi, 79, figs. 1, 2.?Billings, Geol. Canada, 1863, p. 337, fig. 341.?Nicholson, Pal. Prov. Ontario,1875, p. 67, fig. 35.?V\Tiitfield, Geol. Wisconsin, 4, 1882, p. 314, pi. 17, fig. 10;pi. 23, figs. 1, 2.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 239.Concliidiiun(?) occidentalis Hall and Clarke, ibid., 1895, pi. 67, figs. 1-5.?Lesley,Geol. Surv. Pennsylvania., Rep. P 4, 1889, p. 618, fig:?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 273, fig. 331.Niagaran (Guelph): Gault and Guelph, Ontario; Point St. Vital, Lake Huron;Williamstown, Wisconsin.Conchldium scoparium Hall and Clarke.Conchidium scoparium Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 67,figs. 6, 7; 48thi Rep. New York State Mus. for 1895, 2, 1897, p. 366, pi. 11,figs. 8, 9; 14tli Rep. State Geol. New York for 1894, 1897, p. 366, pi. 11, figs.8,9.Niagaran (Guelph): Durham, Ontario.Conchidium tenulcostatum (Hall and Whitfield).Pentamerus nysius var. tenuicosta Hall and "^Tiitfield, 24th Rep. New YorkState Cab. Nat. Hist., 1872, p. 184; 27th Rep., 1875, pi. 10, figs. 1-3.Pentamerus complanatus Nettelroth, Kentucky Fossil Shells, Mem. KentuckyGeol. Survey, 1889, p. 53, pi. 27, figs. 14-16.Conchidium tenuicostatus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235.pi. G4, figs. 3-5.?Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 187.Niagaran (Louisville): Louisville, Kentucky.Plesiotypes.?Cat. No. 51353, U.S.N.M. (Nettelroth's types of P. complanatus).Conchidium trilobatum Kindle and Breger.Conchidium trilobatum Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1904, p. 436, pi. 5, figs. 1-3.Niagaran: Huntington, Indiana.Coiypes?Cat. No. 52933, U.S.N.M.Conchidium unguiforme (Ulrich).Gypidia unguiformis Ulrich, Contrib. Amer. Pal., 1886, p. 28, pi. 3, fig. 2.Gypidula unguiformis Miller, N. A. Geol. Pal., 1889, p. 346.Conchidium unguiformis Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 235,pi. 6G, figs. 1-4.?Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1904, p. 436, pi. 6, figs. 4, 5.Niagaran: Louisville, Kentucky (Louisville); Carroll County, Indiana.CoNCHiTA RHOMBOiDALis Wilckcns. See Leptsena rhomboidalis.CONCHOPELTIS Walcott. Genotype: C. altemata Walcott.Conchopeltis Walcott, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1875, p. 93; mus. ed., 1879, p. 93.?Miller, N. A. Geol. Pal., 1889, p. 400.?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 823.?Berkey, Amer.Geol., 21, 1898, p. 278.Conchopeltis altemata Walcott.Conchopeltis altemata Walcott, 28th Rep. New York State Mus. Nat. Hist., doc.ed., 1875, p. 93; mus. ed., 1879, p. 93.?Ulrich and Scofield, Geol. Minnesota,3, pt. 2, 1897, p. 823, fig. 2.Trenton: Trenton Falls, New York.Conchopeltis compkessa Miller. See Scenella compressa. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 267CoNCHOPELTis MiNNESOTENSis Walcott. See Scenella superba.CoNCHOPELTis OBTUSA Sardeson. See Scenella obtusa.CoNiLiTES Puech. See Actinoceraa Bronn.CoNiLiTES CAPRicoRNULUs Troost. See Cyrtoceras capricornulus.CONOCARDIUM Dekoninck. Genotype: C. hibemicum Dekoninck.ConocardiumDekoninck, Desc. Animaux Fossiles, Suppl., Liege, 1851, p. 673. ? McCoy, British Pal. Rocks and Foss., 1854, p. 51G.?Woodward, Man. Mollusca,pt. 2, 1854, p. 292, pi. 19, fig. 5.?Pictet, Traite Pal., 2d ed., 3, 1855, p. 477.?Barrande, Syst. Sil. Centre Boheme, 6, 1881, p. 66; Acephales: Ext. Syst.Sil. Centre Boheme, p. 103.?Zittel, Handb. Pal., 2, 1881, p. 100.?Dekoninck,Ann. Mus., Royal Hist. Nat. Belgique, 11, 1885, p. 99.?Hall, Pal. New York,5, pt. 1, Lam. 2, 1885, p. 34.?Barrels, Mem. Soc. Geol. Nord, 3, Lille, 1889,p. 155; Mem. Soc. Agriculture et Arte de Lille, 4th ser., 17, 1889, p. 155.Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p, 202.?Miller, N. A. Geol. Pal., 1889, p. 472.?Whidborne, Mon. Dev. Fauna SouthEngland, 2, Pal. Soc, 1892, p. 18.?Koken, Die LeitfossiUen, Leipzig, 1896,p. 210, fig. 176, 1-3.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 261.?Hind, Mon. Brit. Carb. Lam., 1, Pal. Soc, 1900, p. 449.Conocardium antiquum (Owen).Pleurorhynchus antiqua Owen, Geol. Wisconsin, Iowa, and Minnesota, 1852, pi. 2,fig. 19.Conocardium antiquum Billings, Geol. Surv. Canada, Pal. Fobs., 1, 1865, p. 42(adv. sheets, 1862) (gen. ref.).?WTiiteaves, Pal. Fobs., Geol. Surv. Canada,3, pt. 3, 1897, p. 187.Richmond: Lower Fort Garry, Red River, Canada.Holotype.?Cat. No. 17897, U.S.N.M.Conocardium beecheri Raymond.Conocardium beecheri Raymond, Amer. Jour. Sci., 20, 1905, p. 374.Chazyan: Sloop Island, east of Valcour Island and at Chazy, New York (Val-cour); Mingan Islands, Canada (Mingan).Conocardium Blumenbachii Billings. See Euchasma blumenbachi.Conocardium elegantulum BilUngs.Conocardium elegantulum, Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, p. 53.Anticostian (Jupiter River and Chicotte) : Southwest Point, Anticosti.Conocardium elrodl Miller.Conocardium elrodi Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892,p. 705, pi. 20, fig. 14 (adv. sheets, 1891, p. 95).Niagaran (Laurel) : Hartsville, Indiana.Conocardium immaturum Billings.Conocardium immaturum Billings, Geol. Canada, Geol. Surv. Canada, 1863,p. 143, fig. 83a; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 41, text fig. 43(adv. sheets, 1862).Black River (Leray): Pauquettes Rapids, Ottawa River, Canada.Conocardium monrolcum Grabau.Conocardium monroicum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 171,pi. 16, figs. 1-3; pi. 20, figs. 14, 15; pi. 22, fig. 3.Upper Monroan: Salt shaft at Detroit, Michigan (Anderdon); opposite Amherst-burg, Ontario (Amherstburg) ; Wayne County, Michigan (Lucas). 268 BULLETIN 92. UNITED STATES NATIONAL MUSEUM.Conocardium niultistriatum Kindle and Breger.Conocardium multistriatum Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1904, p. 449, pi. 10, fig. 4.Niagaran: Georgetown, Indiana.Conocardium niagarense Winchell and Marcy.Conocardium niagarensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1,1865, p. 97, pi. 2, fig. 14.Niagaran (Racine): Chicago, Illinois.Conocardium ornatum Winchell and Marcy.Conocardium ornatum Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865,p. Ill, pi. 2, fig. 15.Niagaran (Rapine): Chicago, IlUnois.Conocardium oweni Kindle and Breger.Conocardium oweni Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1904, p. 450, pi. 10, figs. 2, 3.Niagaran (Noblesville) : Little Deer Creek and Comiora Mill, Hamilton Coimty,Indiana.Conocardium richmondense Foerste.Conocardium richmondensis Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910,p. 71, pi. 2, fig. 21A, B.Richmond (Elkhorn) : Elkhom Creek, three miles south of Richmond, Indiana.Conocardium tegulum Hall.Conocardium tegulum Hall, Pal. New York, 5, pt. 1, Lam. 2, 1885, p. 415, pi. 68,figs. 30, 31 (adv. sheets, 1883).Niagaran: Locality not given.CoNOCEPHALE Edwards. See Conocephalites Zenker.CoNOCEPHALiNA Grouwall. See Conokephalina BrSgger.CONOCEPHALITES Zenker. Genotype: Conocephalus costatus Zenker.Conocephalites Zenker, Beitr. z. Naturg. Urwelt., 1833, p. 48.?Barrande, NeueaJahrb. f. Min., etc., 1850, p. 779; Syst. Sil. Centre Boheme, 1, 1852, p. 415,pis. 13, 14, 29.?Pictet, Traite Pal., 2d ed. 2, 1854, p. 493.?Hall, 16th Ann.Rep. New York State Cab. Nat. Hist., 1863, pp. 147, 148.?Chapman, Cana-dian Jour., n. 8., 8, 1863, p. 32, fig. 150; p. 192, fig. 161; Expos. Min. Geol.Canada, 1864, p. 140.?Hall, Trans. Albany Inst., 5, 1867, p. 129.?Billings,Canadian Nat., n. s., 6, 1872, p. 474; Pal. Foss., Geol. Surv. Canada, 2, pt. 1,1874, p. 72.?Meek, U. S. Geol. Expl. 40th Pari., 4, 1877, p. 22.?Wood-ward, Geol. Mag., dec. 3, 1, 1884, p. 343.?W^alcott, Science, 3, 1884, p. 281.?Zittel, Handb. Pal., 2, 1855, p. 600.?CEhlert, Bull. Soc. Geol. de France, 3dser., 23, 1895, p. 319.?Wallerius, Unders. ofver. Zonen med. Agnostus Iseviga-tus i Vestergotland, Lund, 1895, pp. 49, 50; Geol. Foren. Stockholm Forhandl.18, 1896, p. 167.?Koken, Die Leitfossilien, Leipzig, 1896, p. 21.?Jaekel,Zeits. d. d. geol. Gesell., 53, 1901, p. 156.Conocephale Edwards, Hist. Nat. Crustaces, 3, 1840, p. 335.Conocephalus Burmeister, Org. der Tril., Berlin, 1843, p. 85.?Goldfuss, NeuesJahrb. f. Min., etc., 1843, pp. 541, 556.?Emmrich, ibid., 1845, p. 43.?Bur-meister, Org. Tril. London, 1846, p. 72.?Freeh, Leth. geog., 1 Th., Leth.Pal., 2, 1897, p. 26, footnote.CoNOOEPHAUTES 0ALCIFERU8 Walcott. See Lonchocephalus caldlerus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 269Conocephalites(?) contiguus Matthew.Conocephalites(?) contiguus Matthew, Trans. Royal Soc. Canada, 9, Bee. 4, 1892,p. 58, pi. 13, figs. 14a, b.Canadian (Bretonian Div. C 3a): St. John, New Brunswick.CoNOCEPHALiTEs Devinei Mattliew. See Ptychoparia? devinei.CoNOCEPHALiTEs HARTii Walcott. See Dikelocephalus harti.CoNOCEPHALTTES HisiNGERi Matthew. See Lisania? hisingeri.CONOCEPHALITES MiNUTUS Bradley. See Ptychoparia minuta.CONOCEPHALITES owENi Hall. See Ptychoparia oweni.CONOCEPHALITES ZENKERi Billlngs. See Ptychoparia zenkeri.CoNocEPHALUS BuTmeister. See Conocephalites Zenker.CoNocERAS ANGTJLOSUM Sacmann. See Actinoceraa bigsbyi.CoNocoRYPHE (Ptychoparia) gallatinensis Meek. See Ptychoparia oweni.CONOKEPHALINA Brogger. Genotype: Conocephalites omatus Brogger.Conokephalina Brogger, Geol. Foren. i. Stockholm Forhandl., No. 101, 8, pt. 3,1886, p. 206.?Walcott, Research in Cliina, 3, Carnegie Inst., Washington,Publ. 54, 3, 1913, p. 137, pi. 13; Smiths. Misc. Coll., 57, 1914, p. 387.Conocephalina Gronwall, Danmarks Geol. Unders. Raekke, 2, No. 13, 1902, p.150.?Lorenz, Zeits. d. d. geol. Gesell., 58, pt. 2, 1906, p. 64.Conokephalina? cristata (Billings).Dikelocephalus cristatus Billings, Canadian Nat. Geol., 5, 1860, p. 312, fig. 10;Geol. Canada, Geol. Surv. Canada, 1863, p. 236, fig. 258; Pal. Foss., 1, Geol.Surv. Canada, 1865, p. 404, fig. 381.Dicellocephalus cristatus Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893,p. 11, footnote.Conokephalina? cristata Walcott, Smiths. Msc. Coll., 57, 1914, p. 350(gen. ref.).Ozarkian? (Levis-erratic): Point Levis, Quebec.Conokephalina inexpectans (Walcott).Dicellocephalus inexpectans Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 90, pi.1, fig. 10.?Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 11,footnote.Dicellocephalus inexpectatus Freeh, Leth. geog., 1, Th., Leth. Pal., 2, 1897,p. 44, footnote.Conokephalina inexpectans Walcott, Smiths. Misc. Coll., 57, 1914, p. 351 (gen. ref.).Lower Pogonip: Ridge east of Hamburg Ridge, Eureka district, Nevada.Cotypes.?Cat. No. 24504, U.S.N.M.Conokephalina megalops (Billings).Dikelocephalus megalops Billings, Canadian Nat. Geol., 5, 1860, p. 311, fig. 9;Geol. Canada, Geol. Surv. Canada, 1863, p. 236, fig. 257; Pal. Foss., 1, Geol.Surv. Canada, 1865, p. 403, fig. 380.Dicellocephalus megalops Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893,p. 11, footnote.Conokephalina megalops Walcott, Smiths. Misc. Coll., 57, 1914, p. 351 (gen. ref.).Ozarkian? (Levis-erratic): Point Levis, Quebec.Conokephalina whitehallensis (Walcott).Conocephalina whitehallensis Walcott, Smiths. Misc. Coll., 57, 1912, p. 269, pi.44, figs. 9-lla. 270 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Conokephalina whitehallensis?Continued.Upper Cambrian or Ozarkian (Potsdam): Whitehall, Washington County, NewYork.Holotype and paratypes.?Cid. Nos. 68579-58581, U.S.N.M.CONOLICHAS Dames. Genotype: Lichas sequiloba Steinhardt.Conolichas Dames, Zeits. d. d. Geol. Gesell., 29, 1877, p. 806.?Schmidt, Mem.I'Acad. Imp. Sci. St. Petersburg, 7th ser., 33, 1885, pp. 30, 40, 87.?Zittel,Handb. Pal., 2, 1885, p. 624.?Hall and Clarke, Pal. New York, 7, 1888, p.xxxix, fig.?Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 754.?Koken, Die Leit-fossilien, Leipzig, 1896, p. 30.?Gurich, Neues Jahrb. f. Min., Geol. Pal., 14,Beilage-Bd., 1901, p. 522, pi. 20, fig. 16.Conolichas cornutus (Clarke).Lichas (Conolichas) cornutus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 749, figs.72, 73.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 237.Trenton: Trenton Falls, New York; Lake Winnipeg, Canada.CoNOPHRYs PusiLLA Brogger. See Shumardia pusilla.CoNOPHYLLUM Hall. See Cystiphyllum Lonsdale.CONOTRETA Walcott. Genotype: C. rusti Walcott.Conotreta Walcott, Proc. U. S. Nat. Mus., 12, 1890, p. 365 (extract 1889).?Halland Clarke, Pal. New York, 8, pt. 1, 1892, pp. 104, 1G7; 11th Ann. Kep. NewYork State Geol., 1894, p. 250.?Miller, N. A. Geol. Pal., 1st App., 1892, p.687.?Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 308; 2d ed., 1913, p.376.?Matthew, Trans. Royal Soc. Canada, 2d ser., 7, sec. 4, 1901, p. 94.Conotreta rusti Walcott.Conotreta rusti Walcott, Proc. U. S. Nat. Mus., 12, 1890, p. 365, figs. 1-i (extract1889).?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 104, pi. 4K, figs.16-21.Trenton: Trenton Falls, New York; Covington, Kentucky.Cotypes.?Cixi. No. 18443, U.S.N.M.CoNOTUBULARiA Troost. See Actinoceraa Bronn.CoNOTUBULARiA Brongniartii Troost. See Orthoceras brongniarti Troost.CoNOTUBULARiA CuviERii Troost. See Actinoceras cuvieri.CoNOTUBULARiA Defrancii Troost. See Orthoceras defranci.CONOTUBULARIA GoLDFUSsi Troost. See Orthoceras goldfussi.CoNRADELLA Ulrich and Scofield. See Phragmolites Conrad.CoNRADiA Hall. See Dinobolus Hall.CONSTELLARIA Dana. Genotype: Ceriopora constellata, (Van Cleve, MS.), Dana.Constellaria Dana, Zoophyta, 1846, p. 537.?Edwards and Haime, Mon. d. Polyp.Foss. d. Terr. Pal. (Arch. Mus. d'Hist. Nat., 5), 1851, pp. 154, 278.?Pictet,Traits de Pal., 2d ed., 4, 1857, p. 154.?Nicholson, Pal. Ohio, 2, 1875, p. 214;Pal. Tab. Corals, 1879, p. 292.?Zittel, Handb. Pal., 1, 1880, p. 615; GenusMonticulipora, 1881, p. 97.?Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5,1882, p. 156; 6, 1883, p. 265.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p.475.?James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 29. ? Ulrich, Geol. Surv. Hlinois, 8, 1890, pp. 374, 423.?Rominger, Amer. Geol., BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 271CONSTELLARIA?Continued.6, 1890, p. 113.?Ulrich, Geol. Minnesota, 3, 1893, p. 311; Zittel'o Textb. Pal.(Engl, ed.), 1896, p. 276.?J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18,1896, p. 117.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 34.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 135.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 742.?Bassler, Bull. U. S. Nat.Mus., 77, 1911, pp. 218, 219; Zittel-Eastman Textb. Pal., 2ded., 1913, p. 334.Stellipora Milne-Edwards, Hist. Nat. des Corall., 3, 1860, p. 281 (in part).?DyboWBki, Die Chsetetiden d. Ostbalt, Silur-Form., 1877, p. 42.CoNSTELLARiA ANTHELOiDEA Milne-Edwards. See Constellaria florida.Constellaria constellata (Van Cleve) Dana.Ceriopora constellata Van Cleve (MS.) Plates of Fossils.Constellaria constellata Dana, Zoophyta, 1846, p. 537, pi. 52, figs. 6, 6a.Observation.?Van Cleve's illustrations could apply equally well to C. floridaor C. polystomella. His specimens were said to be from the vicinity of Dayton,Ohio, and hence were probably of the latter species. In view of this uncertaintythe name had better be dropped.Constellaria constellata-plana Nickles and Bassler. See Constellaria floridaplana.Constellaria constellata prominens Nickles and Bassler. See Constellaria floridaprominens.Constellaria emaciata (Ulrich and Bassler).Constellaria florida var. emaciata Hayes and Ulrich, U. S. Geol. Surv., folio 95,illustration sheet, 1903, fig. 30.?Ulrich and Bassler, Smiths. Misc. Coll.,47, 1904, p. 37.Constellaria emaciata Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 44, pi. 1,figs. 7, 8.?Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 126.Trenton: Columbia, Nashville, etc., Tennessee (Bigby and Catheys); Kentucky(Cynthiana).Cotypes. -Gat. No. 43208, U.S.N.M.Constellaria flscherl Ulrich.Constellaria fischeri Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 270, pi.14, figs. 6-6c.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 214.Trenton: Winchester, etc., Kentucky (Cynthiana); Nashville, etc., Tennessee(Catheys).Holotype.?Ga.t. No. 44068, U.S.N.M.Constellaria florida Ulrich.Constellaria florida Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 257; 6,1883, p. 267, pi. 14, figs. 2-2f; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 278,fig. 461.?Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 54, pi. 3, fig. 5.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 136, fig. 188i.?Bassler,Zittel-Eastman Textb. Pal., 1913, p. 334, fig. 484.Monticulipora (Constellaria) polystomella (not Nicholson) James and James, (inpart) Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 30; James, ibid., 18, 1896,p. 118.Cliffitetes constellatus Quenstedt (not Van Cleve) Rcehren-und Stemkorallen,1881, p. 79, pi. 146, figs. 21-25.Constellaria constellata Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 213.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.804, pi. 12, figs. 4-4e; pi. 27, fig. 19. 272 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Constellaria florida?Continued.Stellipora antheloidea D'Orbigny (not Hall), Prodr. de Pal., 1, 1850, p. 22.?Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 281.Constellaria antheloidea Milne-Edwards and Haime, Pol. Foss. Terr. Pal.,. 1851,p. 279, pi. 20, figs. 7, 7b.?Nicholson, Pal. Ohio, 2, 1875, p. 214; Ann. Mag.Nat. Hist., 4th ser., 18, 1876, p. 92, pi. 5, fig. 10.?James, Paleontologist, No.2, 1878, p. 13.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 476, fig. IIG.?Nicholson, Pal. Tab. Corals, 1879, p. 301, pi. 14, figs. 5, 5b.?White, 11thAnn. Rep. Indiana Geol. Nat. Hist. Surv., 1882, p. 379, pi. 4G, figs. 1-3.Hellipora (Constellaria) antheloidea Rominger (not Hall), Proc. Acad. Nat. Sci.Philadelphia, 1866, p. 118.Maysville (Fairview): Cincinnati, Ohio and vicinity; Tennessee.Cotypes.~Gat. No. 43808, U.S.N.M.Constellaria Florida var. emaciata Hayes and Ulrich. See Constellaria emaciata.Constellaria florida plana Ulrich.Constellaria florida var. plana Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p.269, pi. 14, fig. 4.Constellaria constellata-plana Nickles and Bassler, Bull. U. S. Geol. Surv., 173,1900, p. 213.Maysville (Fairvaew): Cincinnati, Ohio, and vicinity.Eolotype.?G&t. No. 43645, U.S.N.M.Constellaria florida prominens Ulrich.Constellaria florida var. prominens Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6,1883, p. 269, pi. 14, fig. 3.Constellaria constellata-prominens Nickles and Bassler, Bull. U. S. Geol. Surv.,173, 1900, p. 214.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1907, p. 806, pi. 27, fig. 18.Constellaria prominens Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 52, pi.2, fig. 15.Eden (McMicken) and Maysville (Fairview) : Cincinnati, Ohio, and vicinity.Holotype.?GsLt. No. 43644, U.S.N.M.Constellaria limitaris (Ulrich).Stellipora limitaris Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 126, pi.12, figs. 8-8c.Constellaria limitaris Ulrich, ibid., 6, 1883, p. 269, pi. 14, fig. 5, 5a.?Cumings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 806, pi. 13, fig. 2; pi.28, fig. 2.Richmond (Waynesville-Whitewater) : Clarksville, Waynesville, etc., Ohio;Versailles, etc., Indiana.Cotypes and plesiotypes.?G&t. Noa. 43642, 43643, U.S.N.M.Constellaria parya Ulrich.Constellaria parva Ulrich, Geol, Surv. Hlinois, 8, 1890, p. 424, pi. 34, figs. 1-lb.Monticulipora (Constellaria) parva J. F. James, Jour. Cinciimati Soc. Nat. Hist.,18, 1896, p. 119.Richmond (Femvale): Wilmington, Illinois.Sections of holotype.?G&t. No. 43747, U.S.N.M.Constellaria polystomella Nicholson.Constellaria polystomella Nicholson, Pal. Ohio, 2, 1875, p. 215, pi. 22, figs. 7, 7a.?Whitfield, Geol. Surv. Wisconsin, 4, 1882, p. 257, pi. 12, figs. 3, 4.?Chamber-lin, Geol. Wisconsin, 1, 1883, p. 173, fig.?Nickles and Bassler, Bull. U. S.Geol. Surv., 173, 1900, p. 214.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res, Indiana, 1908, p. 808, pi, 13, figs. 1, lb; pi. 18, fig, 1, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 273Constellaria polystomella?Continued.Stellipora polystomella Miller, N. A. Geol. Pal., 1889, p. 203, fig. 217.Monticulipora (Constellaria) polystomella (in part) J. F, James, Jour. CincinnatiSoc. Nat. Hist., 18, p. 118.Richmond: Delafield, "Wisconsin (Maquoketa); Wilmington, Illinois (Femvale);Ohio; Indiana; and Kentucky (Waynesville-AVhitewater) . Constellaria prominens Nickles. See Constellaria florida prominens.Constellaria punctata (Whitfield).MonticuHpora punctata ^^Txitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877, 1878,p. 71; Geol. Surv. Wisconsin, 4, 1882, p. 249, pi. 11, figs. 3, 4.?Buell, Trans.Wisconsin Acad. Sci., 5, 1882, p. 189.Constellaria punctata Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.214.Richmond (Maquoketa): Delafield and Iron Ridge, Wisconsin.Constellaria teres Ulrich and Bassler.Constellaria teres Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 37.?Hayesand Ulrich, U. S. Geol. Surv., fol. 95, illus. sheet, 1903, fig. 31.Trenton (Bigby and Catheys): Columbia, etc., Tennessee; Kentucky.Cotypes?Cat. No. 43205, U.S.N.M.Constellaria varia Ulrich.Constellaria varia Ulrich, Geol. Minnesota, 3, pt. 1, 1893, p. 311, pi. 21, figs. 1-7. ? Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 219-221, figs. 120-122.Trenton: Cannon Falls, etc., Minnesota (Prosser); Belleville, Ontario; Belfast,Tennessee.Ordovician (Wassalem and Jewe) : Uxnorm and Jewe, Esthonia, Russia.Cotypes and plesiotypes.?C&t. Nos. 43546, 57300, 57301, U.S.N.M.CONULARIA Miller. Genotype: C. quadrisulcata Miller.Conularia Miller, in Sowerby's Min. Conchology, 3, 1821, p. 107.?Dekoninck,Desc. Animaux Fossiles, Liege, 1842-1844,1 844, p. 494.?Hall, Pal. New York,1, 1847, p. 222, footnote.?Sandberger, Neues Jahrb. f. Min., etc., 1847, p. 11.Brown, Illust. Foss. Conch. Great Britain and Ireland, 1849, p. 43.?D'Orbigny,Prodr. de Pal., 1, 1849, p. 9.?Dana, Wilkes U. S. Expl. Exped., 1838-1842,Geol., 1849, p. 708.?Woodward, Man. Mollusca, pt. 2, 1854, p. 206, fig. 108.?McCoy, British Pal. Rocks and Foss., 1854, p. 287.?Emmons, Amer.Geology, 1,pt. 2, 1855, p. 207.?Pictet, Traite de Pal., 2d ed., 3, 1855, p. 319.?Hall, Pal.New York, 3, 1859, p. 347, and footnote.?Chapman, Expos. Min. Geol. Canada,1804, p. 122.?Barrande, Syst. Sil. Centre Boheme, 3, 1867, p. 1.?Salter, Cat.Camb. Sil. Foss., 1873, p. 67.?Etheridge, Geol. Mag., 10, 1873, p. 295.?Hall, Pal. New York, 5, pt. 2, 1879, p. 205.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, p. 39.?Zittel, Handb. Pal., 2, 1882, p. 315.?Koninck Ann. Mus. Royal Hist. Nat. Belgium, 8, 1883, p. 219.?Miller, N. A.Geol. Pal., 1889, p. 390; 1st App., 1892, p. 692.?Holm, Sveriges Geol. Unders.,Ser. C, No. 112, 1893, p. 113, 154.?Matthew, Canadian Rec. Sci., 5, 1893, p.433.?A. Ulrich, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band, 8, 1893, p.25.?Koken, Die Leitfossilien, Leipzig, 1896, p. 98, fig. 76.?Ruedemann,Amer. Geol., 17, 1896, p. 158; 18, p. 65.?Grabau, Bull. Buffalo Soc. Nat. Sci.,6, 1899, p. 284.?Pilsbry, Zittel, Eastman Textb. Pal., 1, 1900, p. 490; 2d ed.,1913, p. 572.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 213; Bull.New York State Mus., 45, 1901, p. 213.?Grabau and Shimer, N. A. Index Fos-sils, 2, 1910, p. 12.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 950.84243??Bull. 92?15 18 274 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Conularia amazonica Clarke.Conularia amazonica Clarke, Archivoa Mus. Nac. Rio de Janeiro, 10, author'sEngl, ed., 1900, p. 20, pi. 2, figs. 23-25.Silurian: Rio Trombetas, Brazil.Conularia asperata Billings.Conularia asperata Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 21.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 201, pi.21, figs. 2, 2a.Richmond: Macasty Bay, Anticosti (English Head): Lake Winnipeg, Canada.Conularia bifurca Ringueberg.Conularia bifurca Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 18,pi. 2, fig. 11.Clinton (Rochester): Lockport, New York.Conularia bilineata Foerste.Conularia bilineata Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 547, pi. 37A, fig. 12.Upper Medinan (Brassfield): Soldiers Home, near Dayton, Ohio.Conularia formosa Miller and Dyer.Conularia formosa Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 38,pi. 1, figs. 12, 12a.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 958, pi. 42, fig. 2.Maysville and Richmond: Versailles, etc., Indiana; Cincinnati, Ohio, andvicinity.Conularia gattingeri Safford.Conularia Gattingeri Safford, Geol. Tennessee, 18G9, p. 289.Trenton: Nashville, Tennessee.Conularia gracilis Hall.Conularia gracile Hall, Pal. New York, 1, 1847, p. 224, pi. 59, figs. 7a, b.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 207, pi. 16, fig. 7.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 144, figs.?Ruedemann, Amer. Geol., 17,1896, pp. 158-165, pi. 18, figs. 1-6; pi. 9, figs. 1-7; 18, pp. 65-71, pi. 2, figs.1, 2; 15th Rep. State Geol. New York for 1895, 1898, p. 701, pis. 1-4; 49thRep. New York State Mus., 2, 1898, p. 701, pis. 1-4.Trenton: Near Middleville and Dolgeville, New York.Conularia granulata Hall.Conularia granulata Hall, Pal. New York, 1, 1847, p. 223, pi. 59, figs. 5a, b.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 207, pi. 16, figs. 5a, b.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 144, figs.Trenton: Middleville, New York.Conularia hudsoni Emmons.Conularia Hudsoni Emmons, Amer. Geolog>'-, 1, pt. 2, 1855, p. 208, fig. 65; Man.Geol., 1860, p. 103, fig. 93.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889,p. 144, text fig.Cincinnatian (Pulaski): Lorraine, Jefferson County, New York.Conularia indentata Conrad.Conularia indentata Conrad, Proc. Acad. Nat. Sci. Philadelphia, 7, 1854, p. 31.Trenton: Galena, Illinois.Conularia infrequens Hall.Conularia infrequens Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882,p. 321, pi. 33, fig. 7; Trans. Albany Inst., 10, 1883, p. 73.Niagaran (Waldron): Waldron, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 275Conularia laqueata Conrad.Conularia laqueata Conrad, 5th Ann. Rep. New York Geol. Siirv., 1841, p. 57.?Hall, 15th Rep. New York State Cab. Nat. Hist., 1861, pi. 11, fig. 20.Clinton (Rochester): Albion, Wayne County, New York.Conularia longa Hall.Conularia longa Hall, Pal. New York, 2, 1852, p. 295, pi. 65, figs. 2a-d.Clinton (Rochester): Lockport, New York.Conularia magnlflca Spencer.Conularia magnifica Spencer, Canadian Nat., n. s., 9, 1879, p. 63; Trans. Acad.Sci. St. Louis, 4, 1884, p. 607, pi. 9, figs. 1, la, b; Bull. Mus. Univ. StateMissouri, 1, 1884, p. 58, pi. 9, figs. la-b.Niagaran dolomite: Hamilton, Ontario.Conularia multipuncta Ringueberg.Conularia multipuncta Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 18,pi. 2, fig. 10.Clinton (Rochester): Lockport, New York.Conularia niagarensls Hall.Conularia niagarensis Hall, Pal. New York, 2, 1852, p. 294, pi. 65, figs. la-h. ? Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 286, pi. 5, fig. 16; Geol.Surv. Ohio, Pal., 7, 1898, p. 547, pi. 30, fig. 16.?Grabau, Bull. New YorkState Mus., 45, 1901, p. 214, fig. 145; Bull. Buffalo Soc. Nat. Sci., 7, 1901,p. 214, fig. 145.Early Silurian: Lockport, etc., New York (Rochester); Dayton, Ohio (Brassfield).Conularia papillata Hall.Conularia papillata Hall, Pal. New York, 1, 1847, p. 223, pi. 59, figs. 6a, b.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 207, pi. 16, fig. 6.?Lesley, Geol.Sur\^ Pennsylvania, Rep. P 4, 1889, p. 145, figs.Trenton: Near Middleville, New York.Conularia quadrata Walcott.Conularia quadrata Walcott, 28th Rep. New York State Mua. Nat. Hist., doc. ed.,1875, p. 93; mus. ed., 1879, p. 93.Trenton: Prospect Bridge, Oneida County, New York.Conularia quadrlsulcata (Miller?) Hall.Conularia quadrlsulcata Miller in Sowerby's Min. Conch., 3, 1821, p. 107.?Hall,Geol. New York, 4, 1843, p. 110, fig. 2; p. Ill, tab. ill. 17, fig. 2.?Yandelland Shumard, Cent. Geol. Kentucky, 1847, p. 15.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 145, fig.?Miller, N. A. Geol. Pal., 1889, p.390, fig. 644.Silurian: Europe; Lockport, Rochester, etc.. New York (Niagaran).Conularia rugosa Spencer.Conularia rugosa Spencer, Bull. Missouri State Mus., 1, 1884, p. 59, pis. 8, 9,figs. 2, 2a; Trans. Acad. Sci. St. Louis, 4, 1884, p. 608, pis. 8, 9, figs. 2, 2a.Niagaran dolomite: Hamilton, Ontario.Conularia splendlda Billings.Conularia eplendida Billings, Cat. Sil. Fosa Anticosti, Geol. Surv. Canada, 1866,p. 21.Richmond (Charleton) : Charleton Point, Anticosti. 276 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Conularia transversa Ringaeberg.Conularia transversa Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 19,pi. 2, fig. 12.Clinton (Rochester) : Lockport, New York.Conularia trentonensls Hall.Conularia trentonensls Hall, Pal. New York, 1, 1847, p. 222, pi. 59, figs. 4a-f.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 207, pi. 16, figs. 4a-f .?Rogers, GeolPennsylvania, 2, pt. 2, 1858, p. 819, fig. 609.?Hall, Pal. New York, 3, 1859, p347-348.?Chapman, Canadian Jour., n. s., 7, 1862, p. 118, fig. 116; 8, 1863, p199, fig. 191; Expos. Min. Geol. Canada, 1864, p. 122, fig. 116; p. 171, fig191,_Emerson, Narrative Hall's 2d Arctic Exped., U. S. Navy Dep., 1879p, 578.?Ami, Trans. Ottawa Field Nat. Club, 1, 1882, p. 64.?ChamberlinGeol. Wisconsin, 1, 1883, p. 167, fig.?Lesley, Geol. Surv. Pennsylvania, RepP 4, 1889, p. 146, 2 figs.?Ruedemann, Bull. New York State Mus., 8, 1901p. 520.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 188, pi. 3, figs. 7, 8Trenton: Middleville, Trenton Falls, etc.. New York; Canada; Iowa; NewJersey; etc.Conularia trentonensls multicosta Ruedemann.Conularia trentonensls var. multicosta Ruedemann, Bull. New York State Mus.,162, 1912, p. 115.Trenton: Watervliet, New York (Snake Hill); Schoharie Junction and Schenec-tady, New York (Schenectady).Conularia trentonensls rogersensis Foerste.Conularia trentonensls rogersensis Foerste, Jour. Cincinnati Soc. Nat. Hist., 21,1914, p. 142, pi. 1, fig. 16.Trenton (Upper): Rogers Gap, Kentuckj\Conularia triangulata Raymond.Conularia triangulata Raymond, Amer. Jour. Sci., 4th ser. 20, 1905, p, 379; Ann.Carnegie Mus., 4, 1908, p. 216, pi. 54, fig. 18.Chazyan (Valcour): Valcour Island, New York.Conularia wilkinsi Spencer.Conularia wilkinsi Spencer, Bull. Missouri State Miis., 1, 1884, p. 59, pi. 8, fig. 3;Trans. Acad. Sci. St. Louis, 4, 1884, p. 609, pi. 8, fig. 3.Niagaran dolomite: Hamilton, Ontario.CORALLIDOMUS Whitfield. Genotype: C. concentricus Whitfield.Corallidomus AMiitfield, Geol. Surv. Ohio, Pal., 7, 1893, p. 493.?Miller, N. A.Geol. Pal., 2d App., 1897, p. 780.Corallidomus concentricus Whitfield.Corallidomus concentricus \\Tiitfield, Geol. Sur^^ Ohio, Pal., 7, 1893, p. 493,pi. 13, fig.; Ulrich, ibid., pi. 55, figs. 15, 16.Richmond (Liberty) : Brown County, Ohio.CoRALLiuM GOTHLANDicuM Linnseus. See Favosites gothlandica.CORDYLOCRINUS Angelin. Genotype: C. comtus Angelin,CordylocrinusAngelin, Icon.Crinoid, 1878, p. 3, pi. 23, fig.6.?Zittel, Handb. Pal.,1, 1879, p. 365.?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel-phia, 1881, pp. 232, 234 (Rev. Pal., pt. 2, pp. 58, 60); 1886, p. 337; 1890, p.353.?]\Iiller, N. A. Geol. Pal., 1S89, p. 234.?Treatise on Zool. (Lankester),pt. 3, 1900, p. 156.?Zittel, Grundzuge Pal., 1, 1910, p. 157. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 277CordylocrinusJ dubius Rowley.Cordylocrinus? dubius Rowley, Amer. Geol., 34, 1904, p. 272, pi. 16, figa. 20-22.Niagaran (Bainbridge) : Near St. Mary's, Ste. Genevieve County, Missouri.Cordylocrinus parvus Wachsmuth and Springer. See Cordylocrinus plumosua.Cordylocrinus plumosus (Hall).Platycrinus plumosus Hall, Pal., New York, 3, 1859, pp. 113, 148, pi. 4, figs. 1-5.Platycrinus parvus Hall, Pal., New York, 3, 1859, p. 114, pi. 4, figs. 6-9.Cordylocrinus plumosus Wachsmuth and Springer, Rev. Pal., pt. 2, 1881, p. 61;Proc. Acad. Nat. Sci. Philadelphia, 33, 1882", p. 235; N. Amer. Cri. Cam., 2,1897, p. 737; Atlas, pi. 75, fig. 20.?Talbot, Amer. Jour. Sci., 20, 1905, p. 28,fig. 3, pi. 3, figs. 2, 4.Cordylocrinus parvus Wachsmuth and Springer, Rev. Pal., pt. 2, 1881, p. 60;Proc. Acad. Nat. Sci. Pliiladelphia, 33, 1882, p. 234; N. Amer. Crin. Cam.,2, 1897, p. 737.Clematocrinus plumosus Jaekel, Zeit. d. d. Geol. Gesell., 49, 1897, Verhandl.,p. 47.Clematocrinus parvus Jaekel, ibid., p. 737.Helderbergian (Manlius transition beds or Coeymans) : Jerusalem Hill and NorthLitchfield, New York.COREMATOCLADUS Ruedemann. Genotype: C. densa Ruedemann.Corematocladus Ruedemann, Bull. New York State Mus., 133, 1909, p. 205.Corematocladus densa Ruedemann.Corematocladus densa Ruedemann, Bull. New York State Mus., 133, 1909, p.206, pi. 3, figs. 1-5.Black River (Low\-ille): Glens Falls, New York.CORNULITES Schlotheim. Genotype: C. serpulariua Schlotheim.Cornulites Schlotheim, Petrefaktenkund, 1820, p. 378.?McCoy, Brit. Pal. Rockaand Fobs., 1854, p. 63.?Barrande, Syst. Sil. Centre Bokeme, 3, 1867, p. 167.?Nicholson, Amer. Jour. Sci., 3d ser., 3, 1872, pp. 202, 204.?Hall, Pal. NewYork, 5, pt. 2, 1879, p. 164.?Zittel, Handb. Pal., 1, 1879, p. 564.?Vine,Quart. Jour. Geol. Soc. London, 38, 1882, pp. 378, 379.?Hall, Pal., New York,7, sup. 1888, p. 8.?Miller, N. A. Geol. Pal., 1889, p. 517.?Grabau, Bull.Buffalo Soc. Nat. Sci., 6, 1899, p. 150.?Hinde, Zittel-Eastman Textb. Pal.,1, 1900, p. 253.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 161; Bull.New York State Mus., 45, 1901, p. 161.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 238.?Zittel-Eastman Textb., Pal., 2d ed., 1913, p. 139.Conchicolites Nicholson, Amer. Jour. Sci., 3d ser., 3, 1872, pp. 203-204; Geol.Mag., 10, 1873, p. 54; Cincinnati Quart. Jour. Sci., 1, 1874, p. 236.?Miller,Cincinnati Quart. Jour. Sci., 1, 1874, p. 7, p. 238.?Zittel, Handb. Pal., 1,1879, p. 564.?Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 2G0.?Vine, Quart. Jour. Geol. Soc. London, 38, 1882, pp. 378, 381.?Miller, N. A.Geol. Pal., 1889, p. 517.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 237.?Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 139 (Genotype C. gre-garius Nicholson).Ortonia Nicholson, Geol. Mag., 9, 1872, pp. 447, 448; Rept. 42d Meeting Brit,Assoc. Adv. Sci., Notes and Abstracts, 1873, p. 119; Cincinnati Quart. Jour,Sci., 1, 1874, p. 236.?Miller, Cincinnati Quart Jour. Sci., 1, 1874, pp. 9, 10.238.?Zittel, Handb. Pal., 1, Munich, 1879, p. 564.?Etheridge, Geol. Mag.,dec. 2, 7, 1880, p. 366.?Vine, Quart. Jour. Geol. Soc. London, 38, 1882, pp.378.?Nicholson, Rept. Pal. Prov. Ontario, pt. 1, 1874, p. 122.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 239.?Zittel-Eastman Textb. Pal.,2d ed., 1913, p. 139 (Genotype 0. conica Nicholson). 278 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CornuUtes arcuatus Conrad.Cornulites arcuatus Conrad, Jour. Acad. Nat. Sci. PhiladelpHa, 8, 1842, p. 276,pi. 17, fig. 8.?Hall, Nat. Hist. New York, Geol., 4, 1843, p. 109, fig. 3; p. 110;tab. ill. 16, fig. 3.?Emmons, Man. Geol., 1860, p. 108, fig. 98.?Hall, Pal.New York, 7, Sup., 1888, p. 19, pi. 116A, fig. 9.?Miller, N. A. Geol. Pal.,1889, p. 518, fig. 937.?Clarke and Ruedemann, Mem. New York State Mus.,5, 1903, p. 105, pi. 4, figs. 1-5.?Grabau, Michigan Geol. Siuv., Geol. Ser., 1,1909, p. 201, pi. 22, figs. 4-6.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 239, fig. 1524.Siltuian (Lockport-Guelph, Cobleskill): Albion, Orleans County, etc.. NewYork.Upper Monroan (Amherstburg) : Detroit River, opposite Amherstburg, Ontario.Cornulites bellistriatus Hall.Cornulites Hall, Pal. New York, 2, 1852, p. 353, pi. 85, figs. 12-17.Cornulites bellistriatus Hall, Pal. New York, 7, Sup., 1888, p. 20, pi. 116A, figs.12,13.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 161, fig. 56; Bull.New York State Mus., 45, 9, 1901, p. 161, fig. 56.?Grabau and Shimer, N. A,Index Fossils, 2, 1910, p. 238, fig. 1523.Clinton (Rochester): Western New York; Ontario.Cornulites cingulatus Hall.Cornulites cingulatus Hall, Pal. New York, 7, 1888, p. 20 (supplement to 5), pi.114, fig. 29.?Clarke, Mem. New York State Mus., 3, No. 3, 1900, p. 27, pi. 2,figs. 35-38.?Weller, Geol. Surv. New Jersey Pal., 3, 1903, p. 272, pi. 32,fig. 3.?Ohern, Maryland Geol. Surv., Low. Dev., 1913, p. 258, pi. 40, fig. 16.Helderbergian: New York (New Scotland); Pinto, Maryland (Keyser); NewJersey. Also Oriskany of New York.Cornulites clintoni Hall.CornuUtes flexuosus Hall (not Hall, 1847), Pal. New York, 2, 1852, p. 98, pi. 28,fig. 12a-e; 5, pt. 2, 1879, p. 156, footnote; 28th Rep. New York State Mus.Nat. Hist., mus. ed., 1879, p. 184.Cornulites clintoni Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p.330; Pal. New York, 7, Sup., 1888, p. 18, pi. 116, fig. 22; pi. 116A, fig. 9.?Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 10.Cornulites serpularius var. clintoni Foerste, Proc. Boston Soc. Nat. Hist., 24,1889, p. 274, pi. 5, fig. 8, pi. 7, fig. 8.CUnton: Lockport, etc., New York; Hamilton, etc., Ontario (Irondequoit andRochester); Lewis County, Kentucky.Cornulites clintoni gracilis (Hall).Cornulites flexuosus var. gracilis Hall, Canadian Nat. Geol., 5, 1860, p. 155. ? Dawson, Acadian Geol., 2d ed., 1868, p. 606.Silurian: Arisaig, Nova Scotia.Cornulites conlcus (Nicholson).Ortonia conica Nicholson, Geol. Mag., 9, 1872, pp. 447, 448, fig. 1; Rep. 42d MeetingBrit. Assoc. Adv. Sci., Notes and Abstracts, 1873, p. 119.?Miller, CincinnatiQuart. Jour. Sci., 1, 1874, p. 11, fig. 4.?Hall, Pal. New York, 7, Sup., 1888,p. 17, pis. 115, fig. 27; 116A, figs. 15, 16.Maysville: Cincinnati, Ohio, and vicinity.Cornulites contractus Ringueberg.CornuUtes contractus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, p.148, pi. 3, fig. 6.Clinton (Rochester): Lockport, New York. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 279Cornulltes corrugatus (Nicholson).Conclucolites corrugatus Nicholson, Geol. Mag., 10, 1873, p. 55, pi. 4, fig. 2. ? Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 7.?Hall, Pal. New York, 7,Sup., 1888; p. 17, pis. 115, fig. 27; 116A, figs. 17, 18.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 237, fig. 1522.Maysville: Cincinnati, Ohio, and vicinity.Cornulites distans Hall.Tentaculites distans Hall, Pal. New York, 2, 1852, p. 184, pi. 41A, figs. 9, a, b.?Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 144.?Nicholson,Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 48.Cornulites distans Hall, 23th Rep. New York State Mus. Nat. Hist., mus. ed.,1879, p. 185; Pal. New York, 5, pt. 2, 1879, p. 163 (gen. ref.); 11th Ann. Rep.Indiana Dep. Geol. Nat. Hist., 1882, p. 330 (gen. ref.); Pal. New York, 7,Sup., 1888, p. 18, pi. 116, fig. 23.?Foerste, Proc. Boston Soc. Nat. Hist., 24,1889, p. 274, pi. 5, fig. 7; pi. 6, figs. 10, 11; Geol. Surv. Ohio Pal., 7, 1893, p.532, pi. 30, fig. 7; pi. 31, figs. 10, 11.?Miller, N. A. Geol. Pal., 1889, p. 518,fig. 938.Upper Medinan: Flamborough Head, etc., Ontario (Cataract); Dayton, Ohio(Brassfield); Arisaig, Nova Scotia.Cornulites flexuosus (Hall).Tentaculites? floxuosa Hall, Pal. New York, 1, 1847, p. 92, pi. 29, figs. 6a-d; p.284, pi. 78, fig. 2a, b.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 225, pi. 17,fig. 6.?Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 76.?Emmons, Man. Geol., 1860, p. 102, fig. 6.?Meek and Worthen, Proc. Acad.Nat. Sci. Philadelphia, 1865, p. 255; Geol. Surv. Illinois, 3, 1868, p. 343.Cornulites flexuosus Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882,p. 330; Pal. New York, 7, Sup., 1888, p. 18, pi. 115, figs. 41, 42.?Cumings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1067, pi. 32, fig. 11.Conchicolites flexuosus Miller, N. A. Geol. Pal., 1889, p. 517, fig. 936.Trenton: Lowville, New York.Cincinnatian: Turin, Pulaski, etc.. New York (Pulaski); Cincinnati, Ohio, andvicinity (Maysville).Cornulites flexuosus Hall (part). See Cornulites clintoni.Cornulites flexuosus var. gracilis Hall. See Cornulites clintoni gracilis.Cornulites gregarius (Nicholson).Conchicolites gregarius Nicholson, Man. Pal., 1, 1889, p. 477, fig. 342; Amer. Jour.Sci., 3d eer., 3, 1872, p. 204.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 238.Ordovician: England; Cincinnati, Ohio(?).Cornulites immaturus Hall.Cornulites immaturus Hall, Pal. New York, 7, Sup., 1888, p. 18, pi. 115, fig. 40.Utica: Holland Patent, Oneida County, New York.Cornulites Incurvus (Shumard).Tentaculites incurvus Shumard, 1st and 2d Ann. Rep. Geol. Surv. Missouri, pt. 2,1855, p. 195, pi. B, fig. 6a, b.?Keyes, Missouri Geol. Surv., 5, 1894, p. 217,pi. 35, fig. 3.Cornulites incurvus Hall, Pal. New York, 7, Sup., 1888, p. 18, pis. 115, fig. 31;pi. 116, fig. 31.?Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 41, pi. 2.fig. 7.Upper Medinan (Girardeau): Near Cape Girardeau, Missouri. 280 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cornulites minor (Nicholson).Ortonia minor Nicholson, Geol. Mag., 10, 1873, p. 56, pi. 4, fig. 3.?Miller, Cincin-nati Quart. Jour. Sci., 1, 1874, p. 10.?Hall, Pal. New York, 7, Sup., 1888,p. 17, pi. 115, fig. 3; pi. 116A, figs. 19, 20.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 240, fig. 1525c.Conchicolites minor Aliller, N. A. Geol. Pal., 1889, p. 517.Maysville: Cincinnati, Ohio, and vicinity.Cornulites nodosus Ringueberg.Cornulites nodosus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, p. 149,pi. 3, fig. 7.Clinton (Rochester): Lockport, New York.Cornulites proprius Hall.Cornulites propius Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875,1877, pi. 31, figs. 1-13; mus. ed., 1879, p. 182, pi. 31, figs. 1-13; 11th Ann.Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 327, pi. 32, figs. 1-13; Pal. NewYork, 7, Sup., 1888, p. 19, pi. 116, figs. 1-21.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 238, fig.Niagaran: Waldron, etc., Indiana; Tennessee (Waldron); Nova Scotia.Cornulites riclimondensis (Miller).Tentaculites Richmondensls Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 234,fig. 28.?Hall, Pal. New York, 5, pt. 2, 1879, p. 163; 7, Sup., 1888, p. 18, pi.115, figs. 28-30, 33-39.?Miller, N. A. Geol. Pd., 1889, p. 393, fig. 650.Cornulites riclimondensis Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 1065, pi. 42, fig. 5.Richmond (Whitewater): Richmond, etc., Indiana.Observation.?Compare C. sterlingensis Meek and Worthen.Cornulites serpularis var. clintoni Foerste. See Cornulites clintoni.Cornulites sterlingensis (Meek and Worthen).Tentaculites Sterlingensis Meek and Yv'orthen, Proc. Acad. Nat. Sci. Philadelphia,1865, p. 255; Geol. Surv. Illinois, 3, 18G8, p. 343, pi. 4, fig. 8.?Hall, Pal. NewYork, 5, pt. 2, 1879, p. 163; 7, Sup., 1888, p. 17, pi. 115, figs. 5-7, 32.Richmond (Maquoketa): Sterling, Illinois.Cornulites tenuistriatus (Meek and Worthen).Tentaculites tenuistriatus Meek and Worthen, Proc. Acad. Nat. Sci. Philadel-phia, 1865, p. 254; Geol. Surv. Illinois, 3, 1868, p. 341, pi. 4, figs. 7a, b.Cornulites tenuistriatus Cumings, 32d Ann. Rep. Dep. Geol. Nat Res. Indiana,1908, p. 1066.?Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 41, pi. 2,fig. 6.Uoper Medinan (Girardeau): Alexander County, Illinois.?Richmond: Richmond, Indiana.CORYDOCEPHALUS Hawle and Corda.Genotype: C. flabellatus Hawle and Corda.Corydocephalus Hawle and Corda, Abh. d. k. Bohmischen Gesell. d. Wiss., 5(extract), 1847, p. 139, -dI. 7, fig. 74.?Reed, Quart. Jour. Geol. Soc. London,58, 1902, pp. 61-63, sec. A, pp. 70, 81, 82.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 309.?Raymond, Zittel-Eastman Textb. Pal., 1913,p. 721.Corydocephalus byrnesanus (Miller and Gurley).Lichas byrnesanus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 3, 1893,p. 78, pi. 8, figs. 8, 9.Niagaran (Laurel): Near Madison, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 281Corydocephalus depauperatus (Van Ingen).Arges phlyctainoides depauperatus Van Ingen, School of Mines Quart., 23, 1901,p. 57.Niagaran (St. Clair) : St. Clair Spring, Independence County, Arkansas.Corydocephalus phlyctainoides (Green).Calymene phlyctainoides Green, Amer. Jour. Sci., 32, 1837, p. 167.Arges phlyctainodes Hall, Pal. New York, 2, 1852, p. 314, pi. 70, figs. 2a-2c.?VanIngen, School of Mines Quart., 23, 1901, p. 57, pi., figs., 18, 18a.Lichas hanoverensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 3,1893, p. 78, pi. 8, figs. 6-7.Lichas phlyctainoides Foerste, Geol. Surv. Ohio Pal., 7, 1893, p. 529, pi. 37A,fig. 15; pi. 27, fig. 11.Corydocephalus phlyctainoides Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv.,4, pt. 2, 1907, p. 234, pi. 22, figs. 1-4.Corydocephalus phlyctainodes Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 310, fig. 1621b-e.Niagaran: Springfield, Ohio; Indiana; New York; Illinois; Arkansas.Plesiotype: Cat. No. 4918, U. S.N.M. (Green).Corydocephalus ptyonurus (Hall and Clarke).Lichas (Dicranogmus) ptyonurus Hall and Clarke, Pal. New York, 7, 1888, p. 86,pi. 19B, figs. 19-21.Cayugan (Cobleskill): Schoharie, New York.Corydocephalus tuberculatus (Weller).Arges tuberculatus Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 199, pi. 15,figs. 11-13.Trenton: Near Iliff's Pond, New Jersey.Corydocephalus wesenbergensis paulianus (Clarke).Lichas (Arges) wesenbergensis var. paulianus Clarke, Geol. Minnesota, 3, pt. 2,1894, p. 744, figs. 62-64.Lichas paulianus Miller, N. A. Geol. Pal., 2d App., 1897, p. 788 (gen. ref.).Trenton (Prosser): St. Paul and Wykoff, Minnesota.CORYMBOCRINUS Angelin. Genotype: Eucalyptocrinus polydorus McCoyCorymbocrinus Angelin, Icon. Crinoid., 1878, p. 18, pi. 8, figs. 1, 6-12; pi. 21, fig17.?Zittel, Handb. Pal., 1, 1879, p. 373.?Wachsmuth and Springer, ProcAcad. Nat. Sci. Philadelphia, 1881, p. 308 (Rev. Pal., pt. 2, p. 134); 1885, p328.?Weller, Jour. Geol., 6, 1898, p. 700; Bull. Chicago Acad. Sci., NatHist. Surv., 4, pt. 1, 1900, p. 99, fig. 45.?Wachsmuth, Zittel-Eastman TextbPal., 1, 1900, p. 147.?Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p162.?Zittel, Grundzuge Pal., 1, 1910, p. 163.Corymbocrinus chicagoensis Weller.Corymbocrinus chicagoensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 1, 1900, p. 100, pi. 4, figs. 1-3.Niagaran (Racine): Chicago, Cicero, and Romeo, Illinois.Corymbocrinus niagarensis Weller.Corymbocrinus niagarensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv.,4, pt. 1, 1900, p. 101, pi. 4, figs. 4. 5.Niagaran (Racine) : Chicago, Illinois.CoRYNOGKAPTUS Hopkinson. See Corynoides Nicholson. 282 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CORYNOIDES Nicholson. Genotype: C. calicularis Nicholson.Corynoides Nicholson, Geol. Mag., 4, 1867, p. 108; Mon. British Grapt., 1872, p.132.?Zittel, Handb. Pal., 1879, p. 289.?Nicholson and Lydekker, Man.Pal., 1887, p. 215.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,pp. 228-234.Corynograptus Hopkinson, Quart. Jour. Geol, Soc. London, 31, 1875, p. 633.Corynoides calicularis Nicholson.Graptolite germs Hall, Pal. New York, 3, 1859, p. 508, fig. 7; Can. Org. Rem.,dec. 2, 1865, pi. B, fig. 19.Corynoides calicularis Nicholson, Geol. Mag., 4, 1867, p. 108; pi. 7, figs. 9-11. ? Hopkinson, Geol. Mag., 9, 1872, p. 502.?Nicholson, Mon. British Grapt.,1872, p. 132, fig.; Ann. Mag. Nat. Hist., 11, 1873, p. 143.?Lapworth, Cat.West. Scot. Foss., 1876, p. 7, pi. 4, fig. 91; Rep. and Proc. Belfast Nat.Field Club, 1, pt. 4, App., 1877, pi. 7, fig. 18.?Linnarsson, Sveriges Geol.Unders., ser. C, No. 31, 1879, p. 18.?Lapworth, Proc. and Trans. Roy. Soc.Canada, 4, 1887, p. 177.?Nicholson and Lydekker, Man. Pal., 1889, p. 215, fig.96.?Gurley, Jour. Geol., 4, 1896, pp. 94, 301.?Ruedemann, Bull. New YorkState Mus., 42, 1901, p. 515.?Clarke, Geol. Mag., 4th ser., 9, 1902, p. 498.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 214, pi. 16, figs. 12, 13.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 234-237, figs,122-132; pi. 13, figs. 1, 6-8.?Bassler, Bull. Virginia Geol. Surv., 2a, 1909,pi. 7, figs. 9, 10.Chazyan: (Normanskill): Glenmont, Albany, and other localities in slate belt ofNew York; Pennsylvania; Maryland; Virginia,Ordo\'ician: Wales; Scotland; Scandinavia,Corynoides curtus Lapworth.Corynoides curtus Lapworth, Cat. West. Scot. Foss., 1876, p. 7, pi. 4, fig. 92;Rep. and Proc. Belfast Nat. Field Club, 1, pt. 4, App., 1877, pi. 7, fig. 19.?Ruedemann, Bull. New York State Mus., 42, 1901, p. 514ff; Mem. New YorkState Mus., 11, pt. 2, 1908, pp. 240, 241, figs. 140-144; pi. 13, figs. 4, 17-21,Trenton (Snake Hill): Albany, Amsterdam, etc., New York; Panton, Vermont,Ordovician (Hartfell) : Ireland.Corynoides curtus comma Ruedemann.Corynoides curtus Ruedemann, Bull. New York State Mus., 42, 1901, p. 526.Corynoides curtus var. comma Ruedemann, Mem, New York State Mus., 11,pt. 2, 1908, p. 242, pi. 13, figs. 5, 22-24, 145-148,Trenton (Snake Hill) : Mechanicsville, New York.Corynoides gracilis Hopkinson.Corynoides gracilis Hopkinson, Geol. Mag,, 9, 1872, p, 502, pi, 12, fig. 1.?Lap-worth, Cat. West. Scot. Foss., 1876, p. 7, pi. 4, fig. 93.?Ruedemann, Mem.New York State Mus., 11, pt. 2, 1908, pp. 237-239, figs. 133-135; pi. 13, figs, 2,2, 12, 15, 16,Ordovician: Scotland (Hartfell); Lansingburg, Troy, and Baker F'alls, New York(Trenton-Snake Hill),Corynoides gracilis perungulatus Ruedemann,Corynoides gracilis mut. perungulatus Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, pp. 239-240, figs. 136-139; pi. 13, figs. 3, 9, 10, 11, 13, 14.Chazyan (Normansldll): Glenmont, Speigletown, near Troy, and Mount Moreno,near Hudson, New York; Arkansas. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 283CORTNOTRTPA Baeslcr. Genotype: Hippothoa delicatula James.Stomatopora (part) of authors.CorynotrjTa Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 501; Bull. U. S. Nat.Mua., 77, 1911, p. 61; Zittel-Eaatman Textb. Pal., 1913, p. 319.Corynotrypa abrupta Bassler.Corynotrypa abrupta Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 517, figa. 16, 17;Bull. U. S. Nat. Mus., 77, 1911, pp. 65, 66, figa. 11, 12.Richmond (Maquoketa): Iron Ridge, Wisconsin.Lyckholm limestone: Kertel, Island of Dago, Baltic Sea.Holotype and paratype.?C2X. Nos. 54173, 67109, U.S.N.M.Corynotrypa barberl Bassler.Corynotrypa barberi Bassler, Proc. U. S. Nat. Mua., 39, 1911, p. 509, fig. 8; Bull,U. S. Nat. Mus., 77, 1911, pp. 63, 64,. fig. 9.Chazyan (Ottosee): Knoxville, etc., Tennessee; southwest Virginia.Lyckholm limestone: Hohenholm, Island of Dago, Baltic Sea.Holotype and paratype.?Cat. No. 57105, 57106, U.S.N.M.Corynotrypa canadensis (Whiteaves).Stomatopora canadensis Whiteaves, Pal. Foss., 3, 1897, p. 161, pi. 18, figa. 4, 4a.Corynotr>^a canadensis Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 526, fig. 27.Black River or Richmond: Little Black Island, Lake Winnipeg, Canada.Corynotrypa curta Bassler.Corj^notiypa curta Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 518, fig. 18.Richmond (Maquoketa): Savannah, Illinois.Cotypes.?C&t. No. 54171, U.S.N.M.Corynotrypa delicatula (James).Hippothoa delicatula James, Paleontologist, No. 1, 1878, p. 6.Stomatopora proutana Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 39,pi. 1, figs. 4-4b.?Ulrich, ibid., 12, 1890, p. 175, fig. 2c; Geol. Minnesota, 3,1893, p. 117, pi. 1, figs. 8-12.Rhopalonaria pertenuis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv., Minne-sota, 1886, p. 59.Stomatopora delicatula Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 419.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 118, fig. 178b,?Bassler, Proc. U. S. Nat. Mus., 30, 1908, p. 55, pi. 3, figs. 4-7.Stomatopora tenuissima Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 175,fig. 2; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 261, fig. 412A; Geol. Minne-sota, 3, pt. 1, 1893, p. 116, pi. 1, figa. 16, 17.Stomatopora delicatula-tenuissima Nickles and Bassler, Bull. U. S. Geol, Surv.,173, 1900, p. 419.Corynotrypa delicatula Bassler, Proc. U. S. Nat. Mua., 39, 1911, p. 506, figs.3a, 4-7; Bull. U. S. Nat. Mus., 77, 1911, pp. 61-63, fig. 8; Zittel-EaatmanTextb. Pal., 1913, p. 319, figs. 439a.Stones River-Richmond: Various localities in the United States and Canada.Middle Ordovician: Esthonia, Russia.Plesiotypes.?C&t. Nos. 13615, 43260, 43263, 54156, 54165, U.S.N.M.Corynotrypa disslmllls (Vine).Aulopora sp. Hall, Pal. New York, 2, 1852, pi. 50, figa. 27, 29.Stomatopora diasimilis Vine, Quart. Jour. Geol. Soc. London, 37, 1881, pp. 615,616, figs. 1-8; 38, 1882, p. 50.?Bassler, Bull. U. S. Geol. Surv., 292, 1906,pp. 15, 16, pi. 4, figs. 15-19. 284 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Corynotrypa dlsslmllis?Continued.Corynotrypa dissimilis Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 523, figs. 23, 24;Bull. U. S. Nat. Mus., 77, 1911, pp. 68, 69, fig. 14.Stomatopora recta Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 20, pi. 2,pp. 15, 15a.Stomatopora minor Hennig, Archiv fur Zool., Kongl. Sven. Vet.-Akad. Stockholm,3, No. 10, 1906, p. 24, pi. 3, fig. 6.Silurian: England, Gotland, and Esthonia; Island of Anticosti; New York andOntario (Rochester); Indiana, Kentucky, and Tennessee (Osgood-Louisville).Plenotypes.?Cat. Nos. 35473, 35475, 67112, U.S.N.M.Corynotrypa elongata (Vine).Stomatopora dissimilis var. elongata Vine, Quart. Jour. Geol. Soc. London, 38,1882, p. 50.Stomatopora elongata Vine, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 85, fig.4, 2.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 14, 15, pi. 4, figs. 10-14.Corynotrypa elongata Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 510, fig. 9.Stomatopora parva Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 20, pi.2, fig. 16.Silmian: Shropshire, England (Wenlock); Sevenmile Creek, near Eaton, Ohio(Brassfield); Rochester and Lockport, New York (Rochester); Neweom, Ten-nessee (Waldron); Island of Anticosti.Plesiotypes?Cat. Nos. 35475, 57107, U.S.N.M.Corynotrypa inflata (Hall).Alecto inflata Hall, Pal. New York, 1, 1847, p. 77, pi. 26, figs. 7a, b.Hippothoa inflata Nicholson, Pal. Ohio, 2, 1875, p. 268, pi. 25, figs. 1-lb; Rep.44th Meeting British Assoc. Adv. Sci., Notes and Abstracts, 1875, p. 90. ? Vine, Rep. 51st Meeting British Assoc. Adv. Sci., 1882, p. 163.Stomatopora inflata Vine, Quart. Jour. Geol. Soc. London, 37, 1881, p. 615.Ulrich, Jour Cincinnati Soc. Nat. Hist., 12, 1890, p. 176, fig. 3c; Geol. Minne-sota, 3, 1893, p. 117, pi. 1, figs. 13-21; Zittel's Textb. Pal. (Engl, ed.), 1896,fig. 412B (p. 261).?Simpson, 14th Ann. Rep. State Geol. New York for1894, 1897, figs. 202-204 (p. 597).?Ruedemann, Bull. New York StateMu8., 49, 1902, p. 12, pi. 1, figs. 2, 3.?Grabau and Shimer, N. A. IndexFossils, 1, 1907, p. 118, fig. 178a.?Cumings, 32d Ann. Rep. Geol. Nat. Res.Indiana, 1908, p. 886, pi. 32, figs. 1, la.Stromatopora inflata Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1106,figs.Corynotrypa inflata Bassler, Proc, U. S. Nat. Mus., 39, 1911, p. 515, figs. 12-14;Bull. U. S. Nat. Mus., 77, 1911, pp. 64, 65, fig. 10; Zittel-Eastman Textb.Pal., 1913, p. 319, fig. 439b.Black River-Richmond: Trenton Falls, etc., New York; Canada; Minnesota;Kentucky; Tennessee; etc.Middle Ordovician (Wesenberg) : Esthonia, Russia.Plesiotypes?Cat. Nos. 54146, 54162, 54169, U.S.N.M.Corynotrypa medialis Bassler.Corynotrypa medialis Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 519, fig. 19.Richmond (Maquoketa): Three miles north of Spring Valley, Minnesota.Holotype?Cat. No. 57110, U.S.N.M.Corynotrypa tennesseensis Bassler.Corynotrypa tennesseensis Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 525, fig.25.Stones River (Pierce): Near Murfreesboro, Tennessee.Cotypes?Cat. No. 54177, U.S.N.M. BIBLIOGEAPHIC LIST OF GENEEA AND SPECIES. 285Corynotrypa turgida (Ulrich).Stomatopora turgida Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 176,fig. 3; Geol. Minnesota, 3, 1893, p. 118, pi. 1, figs. 22, 23.Corynotrypa turgida Bassler, Proc. U. S. Nat. Mus., 39, 1911, p. 520, fig. 20.Richmond (Fernvale): Wilmington, Illinois.Holotype and plesiotype.?CaX. Nos. 43258, 54155, U.S.N.M.CosciNiuM PROAVus Eichwald. See Graptodictya proava.CosciNOPORA SULCATA Owcn. See Receptaculites oweni.CRANIA Retzius. Genotype: Anomia craniolaris Linnaeus.Crania Retziua, Schrift. Ges. Naturf. Freunde, Berlin, 2, 1871, p. 72.?Eichwald,Zool. Specialis, pt. 1, Vilnae, 1829, p. 273.?Davidson, British Foss. Brach.,Pal. Soc, 1853, pp. 37, 122.?Woodward, Man. Mollusca, pt. 2, 1854, p. 236,figs. 157, 159.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 66.?Davidson, Mon. ' British Carb. Brach., Pal. Soc, 1861, p. 192.?Dall, Amer. Jour. Conch.,7, 1871, p. 71; Bull. Mus. Comp. Zool., 3, 1871, p. 27.?Miller, CincinnatiQuart. Jour. Sci., 2, 1875, pp. 11, 12.?Dall, Bull. U. S. Nat. Mus., 8, 1877,p. 21.?Winchell, 8th Ann. Rep. Geol. Nat. Hist. Siu-v. Minnesota, 1880,p. 63.?Miller, N. A. Geol. Pal., 1889, p. 341.?Nettelroth, Kentucky Foss.Shells, Mem. Geol. Surv. Kentucky, 1889, p. 31.?Hall and Clarke, Pal.New York, 8, pt. 1, 1892, pp. 145, 169.?Winchell and Schuchert, Geol. Minne-sota, 3, 1893, p. 372.?Hall and Clai'ke, 11th Ann. Rep. New York State Geol.,1894, p. 260.?Koken, Die Leitfossilien, Leipzig, 1896, p. 232, figs. 191, 1-3.?Schuchert, Bull. U. S. Geol. Sui-v., 87, 1897, p. 80.?Huene, Neues Jalirb.f. Min., Geol. and Pal., 1, 1899, p. 142.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6,1899, p. 185.?Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 311.Crania acadiensis Hall.Crania acadiensis Hall, Canadian Nat. Geol., 5, 1860, p. 144, fig. 1.?Dawson,Acadian Geol., Suppl. Chap., 1860, p. 68. fig. 47; 3d ed., 1878, p. 595, fig. 198.Silurian: East River, Nova Scotia.Crania albersi Miller and Faber.Crania albersi Miller and Faber, Jom-. Cincinnati Soc. Nat. Hist., 17, 1894, p. 154,pi. 8, figs. 17-19.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 760, fig. 1406.Eden (Economy): Cincinnati, Ohio, and vicinity.Crania alternata James. See Crania scabiosa.Crania anna Spencer.Crania anna Spencer, Bull. Univ. Missouri, 1, 1884, p. 57; Trans. St. Louia Acad.Sci., 4, 1886, p. 607, pi. 8, fig. 4.Niagaran dolomite: Hamilton, Ontai'io.Crania asperula James. See Crania scabiosa.Crania corrugata Lesley. See Lichenalia concentrica.Crania costata James. See Crania scabiosa.Crania? deformata Miller. See Archinacella deformata.Crania dentata Ringueberg.Crania dentata Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 16, pi. 2, fig. 6.Clinton (Rochester): Lockport, New York. 286 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Crania? dub a Foerste.Crania? dubia Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 565, pi. 37A, figs.17a, b?Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 189.Upper Medinan (Brassfield): Soldiers' Home, near Dayton, Ohio.Crania dyeri Miller.Crania dyeri Miller, Cincinnati Quart. Joiir. Sci., 2, 1875, p. 13, fig. 3; N. A. Geol.Pal., 1889, p. 341, fig. 553.Eden (Economy): Cincinnati, Ohio and vicinity.Crania excentrica Miller. See Orbicula excentrica.Crania filosa Hitchcock. See Schizocrania filosa.Crania gracilis Ringueberg.Crania gracilis Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 17, pi. 2, fig.7.?Schuchert, Bull. U. S. Geol. Siurv., 87, 1897, p. 190.Crania pannosa Ringueberg, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 17, pi. 2, fig. 8.Clinton (Rochester): Lockport, New York.Crania granulosa N. H. Winchell.Crania granulosa N. H. Winchell, 8th Ann. Rep. Geol. Nat. Hist. Surv. Minne-sota, 1880, p. 63.?Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 343.?Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 373, pi. 29, figs. 34, 35.Black River (Platteville): Minneapolis, Minnesota.Crania granulosa cumberlandensis Foerste,Crania granulosa-cumberlandensis Foerste, Bull. Sci. Lab. Denison Univ., 16,1910, p. 41, pi. 5, fig. 8.Black River (Lowville): Wells Creek Basin, near Cumberland, Tennessee; HighBridge, Kentucky.Crania halli Sardeson. See Petrocrania ulrichi.Crania laella Hall.Crania Iselia Hall, Descriptions n. sp. Crinoldea and Other Fossils, 1866, p. 13;24th Rep. New York State Cab. Nat. Hist., 1872, p. 220, pi. 7, fig. 16.?Miller,Cincinnati Quart. Jour. Sci., 2, 1875, p. 12.?Hall and "^Tiitfield, Pal. Ohio, 2,1875, p. 75, pi. 1, fig. 16.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi.4H, fig. 1.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 207, fig.242.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 897,pi. 33, fig. 2.Maysville and Richmond: Cincinnati, Ohio, and many localities in Ohio, Indiana,Kentucky, Tennnessee, etc.Crania minutula Miller. Sec Schizotreta minutula.Crania multipunctata Miller. See Crania scabiosa.Crania pannosa Ringueberg. See Crania gracilis.Crania parallela Ulrich. See Crania scabiosa.Crania percarinata Ulrich. See Crania scabiosa.Crania prona Raymond. See Petrocrania prona.Crania reticularis Miller. See Trematis reticularis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 287Cranla(?) reversa Sardeson.Crania(?) reversa Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 77, pi.3, figs. 6, 7.St. Peter sandstone: St. Paul, Minnesota.Crania scablosa Hall.Crania scabiosa Hall, Descriptions n. sp. Crinoidea and other Foss., 1866, p. 13.;24th Rep. New York State Cab. Nat. Hist., 1872, p. 220, pi. 7, fig. 15.?Hall and Whitfield, Pal. Ohio, 2, 1875, p. 74, pi. 1, fig. 17.?Miller, Cin-cinnati Quart. Jour. Sci., 2, 1875, p. 12.?Hall and Clarke, Pal. New York,8, pt. 1, 1892, p. 148, pi. 4H, figs. 23-28, 30, 31.?Schuchert, Bull. U. S.Geol. Surv., 87, 1897, p. 191.?Grabau and Shimer, N. A. Index Fossils, 1,1907, p. 206, fig. 240.?Cumings, 32d Ann. Rep., Dep. Geol. Nat. Res. Indiana,1908, p. 898, pi. 33, fig. 3-3a.Crania multipunctata Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 13, fig. 4.N. A. Geol. Pal., 1887, p. 341, fig. 554.Crania percarinata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 98, pi. 4,fig. 12.Crania parallela TTlrich, ibid., 1878, p. 98, pi. 4, fig. 13.Crania asperula James, Palaeontologist, 3, 1879, p. 22.Crania costata James, ibid., 1879, p. 22.Crania alternata James, ibid., 1879, p. 23.Philhedra scabiosa Huene, Neuee Jahrb. f. Min., Geol. and Pal., 1, 1898, p. 147(gen. ref.).Eden-Richmond: Cincinnati, etc., Ohio; Indiana; Kentucky; Tennessee; Wis-consin; etc.Crania setifera Hall.Crania setitera Hall, Trans. Albany Inst., 4, 1863, p. 209 (not Hall, 1866); 28thRep. New York State Mus. Nat. Hist., doc. ed., 1876, pi. 21, figs. 8-10; Mus.ed., 1879, p. 148, pi. 21, figs. 8-10; llth Rep. State Geol. IncUana, 1882,p. 283, pi. 21, figs. 8-10.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892,pi. 4H, fig. 18.?Crane, Geol. Mag., dec. 4, 2, 1895, pi. 5, fig. 20.Niagaran (Waldron): Waldron, Indiana.Crania setlgera Hall.Crania eetigera Hall, Descriptions n. sp. Crinoidea and other Fossils, 1866, p.12; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 220, pi. 7, fig. 15.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, figs. 14-16.?Winchelland Schuchert, Geol. Minnesota, 3, 1893, p. 372, pi. 29, figs. 32, 33.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 207, fig. 241e-f.Black River (Platteville and Decorah): Mineral Point and Beloit, Wisconsin;Decorah, Iowa; Minneapolis, Cannon Falls, etc., Minnesota.Crania silurlana Hall.Crania siluriana Hall, Trans. Albany Inst., 4, 1863, p. 208; 28th Rep. New YorkState Mus. Nat. Hist., 1879, p. 148, pi. 21, figs. 3-7; llth Rep. State Geol.Indiana, 1882, p. 282, pi. 21, figs. 3-7.?Beecher and Clarke, Mem. NewYork State Mus., 1, 1889, p. 13, pi. 1, figs. 1, 2.Niagaran (Waldron): Waldron, Indiana; Tennessee.Crania soclalls Ulrich.Crania socialis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 98, pi. 4, fig.14.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, fig. 29.Eden: Cincinnati, Ohio and vicinity. 288 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Crania splnlgera Hall.Crania epinigera Hall, Descriptions n. 8p. Fobs. Waldron, Indiana, 1879, p, 13;11th Rep. State Geol. Indiana, 1882, p. 283, pi. 27, fig. 1; Trans. AlbanyInst., 10, 1883, p. 69.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi.4H, fig. 17.Niagaran (Waldron): Waldron, Indiana.Crania trentonensis Hall.Crania trentonensis Hall, Desc. n. sp. Crinoidea and other Fossils, 1866, p. 12;24th Rep. New York State Cab. Nat. Hist., 1872, p. 219, pi. 7, figs. 11, 12.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, figs. 21, 22.?Win-chell and Schuchert, Geol. Minnesota, 1893, p. 374, pi. 29, figs. 36, 37.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 207, fig. 241c-d.Trenton: Middleville, New York; Cannon Falls, Minnesota; Janesville, Wis-consin; Dixon, Illinois.Craniella ffihlert. See Petrocrania Raymond.Craniops Hall. See PhoUdops Hall.Crateripora Ulrich.Crateripora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 29.Observation.?The forms for which this genus was proposed have been found tobe the basal articulating sockets of species of Eecharopora and Arthropora.Crateripora erecta Ulrich. See Arthropora shafferi.Crateripora lineata Ulrich. See Escharopora falciformis.Crateripora lineata var. expansa Ulrich. See Escharopora falciformis.Craterophyllum Foerste. See Chonophyllum, subgenus Craterophyllum.CREMACRINUS Ulrich. Genotype: C. punotatus Ulrich.Cremacrinua Ulrich, Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 14, 188G, p.107.?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886,p. 201 (Rev. Pal., pt. 3, sec. 2, p. 277).?Ringueberg, Ann. New York Acad.Sci., 4, 1889, p. 396, 405.?Bather, Treatise on Zool. (Lankester), pt. 3, 1900,p. 148.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 213.Castocrinus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 392, pi. 11, fig. 1;Bather.. Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 332, pi. 14, fig. 9; Kongl.Sv. Vet. Akad. Handl., 25, No. 2, 1893, p. 21, 58, 61, fig. 13a, 63.?Miller,N.A. Geol. Pal., 2d App., 1907, p. 740.?Bather, Treatise on Zool., pt. 3,Echinoderma, London, 1900, p. 148, fig. 61, 1.?Wachsmuth, Zittel-EastmanTextb. Pal., 1, 1900, p. 154.?Zittel, Grundzuge Pal., 1, 1910, p. 152.?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1890, p. 387.(Genotype: Calceocrinus furcillatus Billings.)Cremacrinus articulosus (Billings).Heterocrinus articidosus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 51, pi, 4,fig. 8.Calceocrinus (Heterocrinus) articulosus Walcott, 35th Rep. New York State Mus.Nat. Hist., 1883, p. 212.Calceocrinus articulosus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1886, p. 130(Rev.Pal.,pt.3, sec. 2, p. 206).?Ulrich, 14th Ann. Rep.Geol. Nat. Hist. Surv. Minnesota, 1886, p. 113. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 289Cremacrlnus articulosus?Continued.Castocriniis articulosus Riugueberg, Ann. New York Acad. Sci., 4, 1889, p. 395,pi. 10, fig. 4.?Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 25 (loc. occ).Calceocrinus kentuckiensis Miller and Gurley, Bull. Illinoia State Mus. Nat.Hist., 5, 1894, p. 29, pi. 2, fig. 24, 25.?Miller, N. A. Geol. Pal., 2d App., 1897,p. 740, fig. 1322.Castocrinus Kentuckiensis Miller and Gurley, Bull. Illinois State Mus. Nat.Hist., 5, 1894, p. 30.Trenton (Curdsville) : Ottawa and Kirkfield, Ontario; Mercer County, Kentucky.Cremacriniis barrandei (Walcott).Calceocrinus Barrandei Walcott, 35th Rep. New York State Mus. Nat. Hist., 1883,p. 212, pi. 17, figs. 1, 2 (author's ed., p. 6).Cremacrinus barrandei Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota1886, pp. Ill, 113 (gen. ref.).Trenton: Trenton Falls, New York.Cremacrinus billiugsianus (Ringueberg).Castocrinus billingsianus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 394,pi. 10, fig. 3 (separate, p. 7).Trenton (?Curdsville) : Ottawa, Ontario.Cremacrinus chrysalis Ulrich. See Eucheirocrinus chrysalis.Cremacrinus furcillatus (Billings).Calceocrinus furcillatus Billings, Ottawa Naturalist, 1, 1887, p. 51, pi., fig.Castocrinus fiu-cillatus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 393,pi. 10, fig. 1.Trenton (?Curdsville): Ottawa, Ontario.Cremacrinus intequalis (Billings).Heterocrinus iiuequalis Billings, Geol. Surv. Canada, dec. 4, 1859, p. 51, pi. 4,fig. 7a.Calceocrinus ineequalis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1886, pp. 130, 205 (Rev. Pal., pt. 3, sec. 2, pp. 206, 281).Cremacrinus infequalis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, pp. Ill, 113 (gen. ref.).Castocrinus inaequalis Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 395,pi. 10, fig. 5.?Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 25 (loc. occ).Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Cremacrinus punctatus Ulrich.Cremacrinus punctatus Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, p. 107, fig. 1.Black River (Decorah) : Minneapolis, Minnesota.Cremacrinus radiculus Ulrich. See Eucheirocrinus radiculus.Cremacrinus rugosus (Billings).Calceocrinus rugosua Billings, Ottawa Naturalist, 1, 1887, p. 53, pi., figs.?Miller,N. A. Geol. Pal., 1889, p. 230, fig. 259.Castocrinus rugosus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 393, ])1. 10,fig. 2.Trenton (Curdsville): Belleville, Ontario.Crepicephalus (Loganellus) centraus Whitfield. See Ptychoparia oweni.84243??Bull. 92?15 19 290 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Crepicephalus (Loganellus) granulosus Hall and Whitfield. See Ptychopariagranulosa.Crepicephalus (Loganellus) haguei Hall and \^Tiitfield. See Ptychoparia haguei-Crepicephalus (Loganellus) maculosus Hall and Whitfield. See Ptychopariamaculosa.Crepicephalus (Loganellus) unisulcatus Hall and Wliitfield. See Ptychopariaunisulcata.CREPIPORA Ulrich. Genotype: C. simulans Ulrich.Crepipora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 157.?Miller, N. A.Geol. Pal., 1889, p. 299.?Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 380, 469;Geol. Minnesota, 3, 1893, p. 322.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1,1894, p. 15.?Ulrich, Zittel's Textb. Pal. (Engl, ed.), 1896, p. 268.?Simp-son, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 566.?Xicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 23.?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 122.?Hennig, Archiv. fur Zool., 4, No. 21,1908, p. 9.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 85, 86; Zittel-East-man Textb. Pal., 2d ed., 1913, p. 328.Crepipora epidermata Ulrich. See Favositella epidermata.Crepipora hemispherica Ulrich.Crepipora hemispherica Ulrich, Geol. Surv. Illinois, 8, 1890, p. 472, pi. 40, figs.5-5b.Richmond: Wilmington, Illinois (Fernvale); Delafield, Wisconsin (Maquoketa).Cotype.?Q&i. No. 43234, U.S.N.M.Crepipora impolita Ulrich. See Anolotichia impolita.Crepipora Impressa Ulrich.Crepipora impressa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 471, pi. 40, figs. 2, 2a. ? Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 566, figs.135, 136.Maysville (Fairmount) : Covington, Kentucky.Holotype.?Cat. No. 43231, U.S.N.M.Crepipora perampla Ulrich.Crepipora perampla Ulrich, Geol. Minnesota, 3, 1893, p. 323, pi. 28, figs. 29-32;Zittel'a Textb. Pal. (Engl, ed.), 1896, p. 267, figs. 436A-C.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 328, figs. 464a--c.Black River (Platteville): Chatfield and near Spring Valley, Minnesota.Part of holotype.?C&t. No. 43235, U.S.N.M.Crepipora simulans Ulrich.Crepipora simulans Ulrich, Geol. Siu-v. Illinois, 8, 1890, p. 470, pi. 39, figs. 4, 4a,pi. 40, figs. 3, 3a; p. 320, fig. 8b.?(Ulrich in press) Miller, N. A. Geol. Pal.,1880, p. 299, fig, 468.?Ulrich, Zittel's Textb. Pal. (Engl, ed.), 1896, fig. 436D(p. 267).?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p.566, figs. 133, 134.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 217.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 122, fig. 178k.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 328, fig. 464d.Maysville (Fairmount): Cincinnati, Ohio; Indiana; Kentucky; Tennessee.Cotype^.?Cat. No. 43230, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA ANT) SPECIES. 291Creplpora? solida Ulrich.Crepipora solida Ulrich, Geol. Sui-v. Illinois, 8, 1890, p. 472, pi. 40, figs. 4-4b.Eden (Economy): Covington, KentuckyCotypes.?CU. No. 43232, U.S.N.M.Creplpora spatlosa Ulrich.Crepipora spatiosa Ulrich, Geol. Minnesota, 3, 1S93, p. 323.Trenton (Cynthiana): Harrodsburg and Frankfort, Kentucky.Holotype.?Cat. No. 43228, U.S.N.M.Crepipora subaequata Ulrich.Crepipora subsequata Ulrich, Geol. Minnesota, 3, 1893, p. 322, pi. 28, figs. 26-28.Black River (Decorah): St. Paul, Minnesota.Eolotype.?Cat. No. 43233, U.S.N.M.Crepipora venusta (Ulrich).Chsetetes venustus Ulrich, Jour. Cincmnati Soc. Nat. Hist., 1, 1878, p. 93, pi. 4,figs. 7, 7a.Crepipora venusta Ulrich, ibid., 5, 1882, p. 257.?Nickles, Bull. Kentucky Geol.Surv., 5, 1905, p. 49, pi. 2, fig. 7.?Foerste, Jour. Cincinnati Soc. Nat. Hist.,21, 1914, p. 12G.Monticulipora (Fistulipora) venusta James and James, Jour. Cincinnati Soc. Nat.Hist., 11, 188S, p. 33.Trenton (Upper) and Eden (Economy): Covington, etc., Kentucky; Ohio;Indiana.Eolotype.?Cat. No. 43236, U.S.N.M.Creseis corrugata Matthew. See Styliola corrugata.Creseis minuta Matthew. See StyUola minuta.Ckinocystis Bather. See Crinocystites Hall.CRINOCYSTITES Hall. Genotype: C. chrysaUs Hall.Crinocystites Hall, 20th Eep. New York State Cab. Nat. Hist., 18G8, p. 317,extras, 18G4; rev. ed., 1870, p. 361.?Miller, N. A. Geol. Pal., 1889, p. 234.Crinocystis Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 77.Crinocystites chrysalis Hall.Ci-inocystites clir3 ealis Hall, 20th Rep. Ne\7 York State Cab. Nat. Hist., 1868, p.318, pi. 12a (1), figs. 10, 11; extras, 1864; rev. ed., 1870, p. 362, pi. 12a, figs.10, 11.Crinocystis chrysalis Haeckel, Amphorideenu. Cystoideen, 1896, p. 69.Niagaran (Racine): Racine, Wisconsin.Cr!nocystites(?) rectus (Hall).Crinocystites? rectus Hall, 20th Rep. New York State Nat. Hist., 1868, p. 318(extras, 1864).Rhodocrinr.sf?) rectus Hall, ibid., 1868, p. 379, pi. 10 (1), fig. 2; rev. ed., 1870, p.368, pi. 11, fig. 10 Cpl. 10, fig. 2).Niagaran (Racine): Racine Wisconsin.Crinosoma antiqua Castelnau. See Arthrophycus alleghaniensia.Crisinella ceilensis Wiman. See Protocrisina exigua.Cromus Barrande. See Encrinurus Emmrich.Cromus arcticus Haughton. See Encrinurus laevis. 292 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Crotalocrinites Austin and Austin. See Crotalocrinus Austin and Austin.CROTALOCRINUS Austin and Austin. Genotype: Cyathocrinites rugosua Miller.Crotalocrinites Austin and Austin, Ann. Mag. Nat. Hist., 11, 1843, p. 198.Crotalocrinus Morris, Cat. British Foss., 1st ed., 1848, p. 50.?Muller, Ann. Mag.Nat. Hist., 2d ser., 13, 1854, p. 254.?McCoy, British Pal. Rocks and Foss.,1854, p. 54.?Salter, in Murchison, Siluria, 2d ed., 1854, p. 219.?Pictet,Traits de Pal., 2d ed., 4, 1857, p. 312.?Austin, Cat. Camb. Sil. Foss., 1873,p. 123.-Angelin, Icon. Crinoid., 1878, p. 26.?Zittel, Handb. Pal., 1, 1879,p. 356.?DeLoriol, Pal. Francaise, 2, 1882, p. 51.?Carpenter, Ann. Mag. Nat.Hist., 5th ser., 18, 1886, p. 397.?Wachsmuth and Springer, Proc. Acad. Nat.Sci. Philadelphia, 1886, pp. 66, 69, (Rev. Pal., pt. 3, sec. 2, pp. 142, 145);1888, pp. 264-390.?Jaekel, Zeits. d. d. geol. Gesell., 49, 1897, p. 47.?Weller,Jour. Geol., 6, 1898, p. 700.?Bather, Geol. Mag., dec. 4, 5, 1898, p. 327,figs. 1, 3, 4; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 176, fig. 92,3.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, pp. 19,141, fig. 52.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 216.Crotalocrinus americanus Weller. See Crotalocrinus cora.Crotalocrinus cora (Hall).Cyathocrinus cora Hall, adv. sheets 18th Rep. New York State Cab. Nat. Hist.,1865, p. 20, pi. (2), figs. 13, 14; doc. ed., 1867; 20th Rep., 1868, p. 324, pi. 11 (2),figs. 13, 14; rev. ed., 1870, p. 366, pi. 11, figs. 13, 14.?Miller, Jour. Cincin-nati Soc. Nat. Hist., 4, 1881, p. 174.?Chamberlin, Geol. Wisconsin, 1, 1883,p. 191.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900,p. 62, pi. 14, figs. 6-10.Crotalocrinus americanus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 1, 1900, p. 143, pi. 14, fig. 1.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 561.Crotalocrinus cora Weller, Jour. Geol., 10, 1902, pp. 532, 534, pi. 3, figs. 1-5.?Slocom, Field Columbian Mus., 2, Geol. Ser., No. 10, 1908, p. 292, pi. 86,figs. 3, 4.Niagaran (Racine): Racine, Wisconsin; Chicago, etc., Illinois.Crotalocrinus? vanhornei (Miller).Cyathocrinus vanhornei IMiller, Jour Cincinnati Soc. Nat. Hist., 4, 1881, p. 261,pi. 6, fig. 3.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900,p. 64, pi. 14, fig. 5.Crotalocrinus? vanhornei Weller, Jour. Geology, 10, 1902, p. 533 (gen. ref.).Niagaran (Racine) : Bridgeport, Illinois.Crumen^crinites Troost. See Periechocrinus Austin.Crumen^crinites ovalis Troost. See Periechocrinus tennesseensis.CRUZIANA D'Orbigny. Genotype: C. rugosa D'Orbigny.Cruziana D'Orbigny, Voyage I'Amerique Merid., 3, pt. 4, 1842, p. 30.?Pictet,Traits de Pal., 2d ed., 2, 1854, p. 559.?Salter, Proc. Geol. Soc. London, 1860,p. 70; Mem. Geol. Surv. Great Britain, 3, 1866, p. 291; 2d ed., 1881, p. 482.?Nathorst, Kongl. Sven. Vet.-Akad. Handl., 18, No. 7, 1881, pp. 33, 87.?James,Jour. Cincinnati Soc. Nat. Hist., 7, 1885, pp. 153-157.?Lebesconte, Bull.Soc. Geol. France, 3d ser., 14, 1886, p. 810.?Bornemann, Nova Acta K. Leop.Carol. Deutsch. Akad. der Natur., 51, No. 1, 1886, p. 11.?Nathorst, Kongl.Sven. Vet.-Akad. Handl., 21, No. 14, 1886, p. 16.?Walcott, Proc. U. S. Nat.Mus., 12, 1890, p. 35.?Miller, N. A. Geol. Pal., 1889, p. 115.Observation.?Possibly the same as Rueophycus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 293Cruziana aspera James. See Rusophycus asper.Cruziana bilobata Hall. See Rusophycus bilobatus.Cruziana Carleyi James. See Rusophycus carleyi.Cruziana cucurbita Salter.Cruziana cucurbita Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71, pi. 5,figs. 4-6.Ordo\acian?: Valleys of Unduavi and Aceromarka, Boli\'ia.Cruziana furcifera D'Orbigny.Cruziana furcifera D'Orbigny, Voyage I'Amerique Merid., 3, pt. 4, 1847, p. 31,8, Atlas, pi. 1. figs. 2, 3.Cruziana furcifera Ulrich, Neues Jahrb. f. Min., Geol. Pal., 8, Beilage-Band,1893, p. 86.Ordovician: Cochabamba, Bolivia.CRUZLA.NA PUDicA James. See Rusophycus pudicum.Cruziana rugosa D'Orbigny.Cruziana rugosa D'Orbigny, Voyage I'Amerique Merid., 3, pt. 4, 1842, p. 30, 8,Atlas, pi. 1, fig. 1.Silurian: Cochabamba, Bolivia.Cruziana subangulata James. See Rusophycus subangulatus.Cruziana unduavi Salter.Cruziana unduavi Salter, Quart. Jour. Geol. Soc. London, 17, 1861, p. 71, pi. 5,figs. 7, 8.Ordovician?: Valleys of Aceromarka and Unduavi, Bolivia.Cryptoceras undatum Chapman. See Plectoceras halli.Cryptodiscus Hall. See Callicrinus D'Orbigny.CRTPTOGRAPTUS Lapworth. Genotype: Diplograptus tricomis Carruthers.Cryptograptus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 174.?Ruede-mann, Mem. New York State Mus., 11, pt. 2, pp. 442, 443.Cryptograptus? antennarius (Hall).Climacograptus antennarius Hall, Geol. Surv. Canada, dec. 2, 1865, p. 112, pi.13, figs. 11-13.?Roemer and Freeh, Lethaea Pal., 1, 1897, p. 611.?Ruede-mann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 731-732, pi. 16, figs.21-26.Climacograpsus antennarius Nicholson, Ann. Mag. Nat. Hist., 4th ser., 6, 1870,p. 382, fig. 6; Mon. Brit. Grapt., 1872, p. 49, fig. 16.Diplograpsus antennarius Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868,p. 139.Cryptograptus? antennarius Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880,p. 174.?Gurley, Jour. Geol., 4, 1896, p. 299 (gen. ref.).?EUes, Quart. Jour.Geol. Soc. London, 54, 1898, p. 519, fig. 31, p. 520.?Ruedemann, Mem. NewYork State Mus., 11, pt. 2, 1908, p. 443.Diplograptus laxus Ruedemann, Ann. Rep. New York State Pal., 1902, p. 571;Mem. New York State Mus., 7, pt. 1, 1904, pp. 722, 723, pi. 16, figs. 1-10.Canadian: Point Levas, Quebec (Levis, Diplograptus dentatus zone); Deepkilland Mount Moreno, New York (Deepkill, D. dentatus zone); Arkansas;Great Britain.Cryptograptus marcidus Dodge. See Cryptograptus tricornis. 294 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cryptograptus tricornis (Carruthers).Diplograptus tricornis Carruthers, Trans. Royal Phys. Soc. Edinburgh, 1, 1858,p. 468, fig. 2; Ann. Mag. Nat. Hist., 3, 1859, p. 25, fig. 2; Geol. Mag., 5,1868, p. 131, fig. 11.?Hopkinson and Lapworth, Quart. Jour. Geol. Soc.London, 31, 1875, p. 658, fig. 6.?Lapworth, Cat. West Scott. Foss., 1876,fig. 30; Rep. and Proc. Belfast Nat. Field Club, 2d ser., 1, pt. 4, app., 1877,p. 132, pi. 6, fig. 10.?Ami, Rep. Geol. Surv. Canada, 2d eer., 3, pt. 2, 1889,pp. 50K, 117K.Cryptograptus tricornis Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 171,pi. 5, figs. 27a-27e; Proc. and Trans. Royal Soc. Canada, 4, 1887, p. 177;Science, 9, 1887, p. 320; Canadian Rec. Sci., 3, 1888, p. 141; Rep. Geol.Surv. Canada, 2d ser., 3, pt. 1, 1889, p. 95B.?Gurley, Jour. Geol., 4, 1896,p. 298.?Elles, Quart. Jour. Geol. Soc. London, 54, 1898, p. 527.?Hall, Proc.Royal Soc. Victoria, 18, pt. 1, 1905, p. 21.?Ami, Geol. Surv. Canada, Sum.Rep. for 1904, 1905, p. 12.?Hall, Rec. Geol. Surv. Victoria, 1, pt. 4, 1906,p. 275.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 443448, pi. 28, figs. 1-4; figs. 410-417.Cryptograptus (Idiograptus) tricornis, Perner, Etudea sxir les Grapt. Boherae, pt.2, 1895, p. 26, pi. 7, figs. 7-10.Diplograptus etheridgii Hopkinson, Geol. Mag., 9, 1872, p. 504, fig. 5.Graptolithus marcidus Hall, Pal. New York, 3, 1859, p. 515, figs. 1-3; 13th Ann.Rep.- New York State Cab. Nat. Hist., 1860, pp. 58, 59, figs. 1-3.Diplograptus mai-cidus Walcott, Trans. Albany Inst., 10, 1883 (adv. sheet 1879,p. 34).?Whitfield, Amer. Jour. Sci., 3d ser., 26, 1883, p. 380.?Walcott, Bull.Geol. Soc. Amer., 1, 1890, p. 339.Cryptograptus marcidus Dodge, Amer. Jour. Sci., 3d ser., 40, 1890, p. 153.Middle Ordovician: South Scotland (Glenkiln and Hartfell); New York slate belt(Normanskill) ; Canada; Tennessee; Arkansas; Australia; Bohemia; etc.Cryptograptus tricornis insectiformis Ruedemann.Cryptograptus tricornis mut. insectiformis Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, pp. 448, 449, pi. 28, figs. 5, 419-422.Trenton (Snake Hill): Van Schaick Island, Cohoes, New YorkCRYPTOLITHUS Green. Genotype: C. tesselatus Green.Cryptolithus Green, Mon. Tril. N. Amer., 1832, p. 72.?Goldfuss, Neues Jalirb. f.Min., etc., 1843, pp. 540-542.?Emmrich, ibid., 1845, p. 44.?Hall, Pal. NewYork, 1, 1847, p. 235, footnote.Nuttainia Eaton, Geol. Textb., 2d ed., 1832, p. 33.?Green, Mon. Tril. N. Amer.,1832, p. 88.?Hall, Pal. New York, 1, 1847, p. 235, footnote.?Reed, Quart.Jour. Geol. Soc. London, 58, 1902, p. 62.Trinucleus Murchison, Sil. Syst., 1839, p. 659.?Emmons, Nat. Hist. New York,Geol., 2, 1842, p. 115.?Salter, Quart. Jour. Geol. Soc. London, 3, 1847, p.251.?Hawle and Corda, Abh. d. k. bohm. Gesell. Wiss., 5 (extract), 1847, p.38, pi. 3, fig. 17.?Salter, Mem. Geol. Surv. United Kingdom, dec. 7, 1853,pi. 7.?McCoy, Brit. Pal. Rocks and Foss., 1854, p. 144.?Pictet, Tralte dePal., 2d ed., 2, 1854, p. 508.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 212.?Chapman, Canadian Jour., n. s., 1, 1856, p. 273; 8, 1863, p. 28; Expos. Min. Geol.Canada, 1864, p. 136.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 126.?Zittel, Handb. Pal, 2, 1885, p. 593.?Miller, N. A. Geol. Pal., 1889, p. 568.?Beecher, Amer. Jour. Sci., 3d ser., 46, 1893, p. 143.?Vogdes, Cal. Acad. Sci.,Occ. Pap., 4, 1893, p. 359.?Beecher, Amer. Jour. Sci., 3d ser., 49, 1895, p.307; Amer. Geol., 16, 1895, pp. 167, 176.?Koken, Die Leitfossilien, Leipzig,1896, p. 15, fig. 9, 1.?Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, pp. 105,184, 186, pi. 3, fig. 12.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.258. BTBLIOGEAPHIC LIST OF GENERA AND SPECIES, 295Cryptolithus bellulus (Ulrich).Trinuclous bellulus Ulrioh, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 99, pi. 4,fig. 15.Eden: Covington, Kentucky, and vicinity (Economy); New York (IndianLadder).Holoty-pe.?Q&t. No. 41876, U.S.N.M.Cryptolithus bigsbli Green. Not recognized.Cryptolithus Bigsbii Green, Mon. Tril. N. Amer. 1832, p. 76.Ordovician: ^lontmorency, near Quebec, Ontario.Cryptolithus boliviensis (Lake).Trinucleus boliviensis Lake, Quart. Jour. Geol. Soc. Ijondon, 62, 1906, p. 427, pi.40, figs. 4, 5.Ordovician: Near Apolo, Bolivia.Cryptolithus kruegeri (Hoek).Trinucleus kruegeri Hoek, Neues Jahrl>. Min.^ Geol., Pal., 34, 1912, p. 236, pi. 10,figs. 7, 8.Ordovician: Cochabamba, Bolivia.Cryptolithus tessellatus Green.Cryptolithus tessellatus Green, Mon. Tril. North Amer., 1832, p. 73, cast 38, pi. 1,fig. 4; Monthly Amer. Joiu". Sci., 1, 1832, pi. 1, fig. 4.?Conrad, Amer. Jour.Sci., 38, 1840, p. 91, footnote.?Vanuxem, Nat. Hist. New York, Geol., 3,1842, p. 48.?Locke, Proc. Acad. Nat. Sci. Philadelphia, 1, 1842, pp. 196, 236,fig.?Rouault, Bull. Soc. Geol. France, 2d ser., 6, 1849, p. 83.?Foerste, Bull.Sci. Lab. Denison Univ., 14, 1910, p. 78 (gives liistory of genus and species);17, 1914, p. 317.Trinucleus tessellatus Emmons, Nat. Hist. New York, Geol., 2, 1842, pp. 115, 390,391, fig. 7.?Owen, Amer. Jour. Sci., 47, 1844, pp. 363, 364, fig. 7.Nuttainia concentrica Eaton, Geol. Textb., 2d ed., 1832, p. 34, pi. 1, fig. 2. ? Green, Mon. Tril. North Amer., 1832, p. 76.Trinucleus caractaci Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 403, fig. 1.Owen, Amer. Jour. Sci., 47, 1844, p. 377, 378.?De Verneuil, ibid., 2d ser., 7,1849, p. 223.?Emmons, Man. Geol., 1860, p. 103, fig. 93.Trinucleus concentricus Hall, Pal. New York, 1, 1847, p. 249, pi. 65, figs. 4a, c;p. 255, pi. 67, figs. la-h.?Salter, Mem. Geol. Surv. United Kingdom, dec. 7,1853, p. 51, pi. 7.?Emmons, Amer. Geol., 1, pt. 2, 1855, p. 212, pi. 15, fig.4a, b; pi. 16, fig. 7; pi. 17, fig. 1.?Chapman, Canadian Jour., n. s., 1, 1856,p. 273; 3, 1858, p. 514, fig.?Ptogers, Geol. Pennsylvania, 2, pt. 2, 1858, p.820, fig. 611.?Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861,p. 47, pi. 3, fig. 5; pi. 4, fig. 12.?Hitchcock, Geol. Vermont, 1, 1861, p. 300, fig.215.?Billings, Geol. Canada, Geol. Sm-v. Canada, 1863, p. 190, fig. 191a, b.?Chapman, Canadian Jour., n. e., 8, 1863, p. 28, fig. 139; p. 200, fig. 195; Expos.Min. Geol. Canada, 1864, p. 136, fig. 139; p. 172, fig. 195.?Salter, Mem. Geol.Surv. Great Britain, 3, 18G6, p. 320, pi. 19, fig. 4; Cat. Camb. Sil. Foss., 1873,p. 49.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 126.?Walcott, Bui!.Mus. Comp. Zool., 8, 1881, p. 199.?Salter, Mem. Geol. Surv. Great Britain,3, 2d ed., 1881, p. 517, pi. 19, fig. 4.?Miller, N. A. Geol. Pal., 1889, p. 569,fig. 1063.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1223, fig.?Beecher, Amer. Jomr. Sci., 3d ser., 49, 1895, p. 309, pi. 3, figs. 1-6.?Weller,Geol. Surv. New Jersey, Pal., 3, 1903, p. 192, pi. 14, figs. 3, 4.?Cumlngs, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1064, pi. 44, fig. 11.?Bassler,Bull. Geol. Surv. Virginia, 2a, 1900, pi. 7, fig. 3.?Grabau and Shinier, N. A.Index Fossils, 2, 1910, p. 259, fig. 1547. 296 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cryptolithus tessellatus?Continued.Trenton-Maysville: Glens Falls, near Waterford, etc., New York; Canada; Penn-sylvania; New Jersey; Ohio; Kentucky; Oklahoma; Virginia; etc.Plastotype.?GzX. No. 4921, U.S.N.M.Cryptonymus Eichwald. See Asaphus Brongniart and Encrlnurus Emmrich.CRYPTOPHRAGMUS Raymond. Genotype: C. antiquatua Raymond.Cryptophragmus Raymond, Bull. Victoria Mem. Mus., 5, 1914, p. 8.Cryptophragmus antiquatus Raymond.Cryptophragmus antiquatus Raymond, BuU. Victoria Mem. Mus., 5, 1914, p. 8,pis. 1-4.Black River (Lowville): Garden, etc., Ontario; Quebec; New York.Cryptopora Nicholson. See Semicosciniiun Prout.CRYPTOZOON Hall. Genotype: C. proUferum Hall.Cryptozoon Hall, 36th Rep. New York State Mus. Nat. Hist., 1884, expl. of pi. 6.?Miller, N. A. Geol. Pal., 1889, p. 157.?Dawson, Canadian Rec. Sci., 7, 1896,p. 204.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 46.?Seely,Rep. State Geol. Vermont, 5, 1906, p. 160.?Walcott, Smiths. Misc. Coll.,57, 1912, p. 257.?Wieland, Bull. Amer. Mus. Nat. Hist., 33, 1914, p. 239.Cryptozoon bassleri Wieland.Cryptozoon bassleri Wieland, Bull. Amer. Mus. Nat. Hist., 33, 1914, p. 239, figs.1, 2, pis. 14-18.Upper Cambrian or Ozarkian: Near Pennsylvania State College, Center County,Pennsylvania.Cryptozoon boreale Dawson.Cryptozoon boreale Dawson, Canadian Rec. Sci., 7, 1896, p. 207, fig. 1.Trenton: Lake St. John, Quebec.Cryptozoon giganteum Chaney.Cryptozoon giganteum Chaney, Bull. Minnesota Acad. Nat. Sci., 3, 1891, p. 283.Canadian (Shakopee): Northfield, Minnesota.Cryptozoon lachutense Dawson.Cryptozoon Lachutense Dawson, Canadian Rec. Sci., 7, 1896, p. 206.?Seely,Rep. State Geol. Vermont, 5, 1906, p. 168.Canadian (Beekmantown): Lachute, Quebec.Cryptozoon minnesotense Winchell.Cryptozoon Minnesotense Winchell, 14th Ann. Rep. Geol. Nat. Hist. Surv.Minnesota, 1886, p. 313, pi. 1, figs. 1, 2; pi. 2, fig. 3.?Chaney, Bull. MinnesotaAcad. Nat. Sci., 3, 1891, p. 280.?Dawson, Canadian Rec. Sci., 7, 1896, p.206.Canadian (Shakopee): Cannon Falls, Northfield, and Mankato, Minnesota.Cryptozoon minnesotense libertatls Winchell.Cryptozoon ^Minnesotense var. libertatia Winchell, 14th Ann. Rep. Geol. Nat.Hist. Surv. Minnesota, 1886, p. 315, pi. 2, fig. 4.Canadian (Shakopee): Northfield, ^linnesota.Cryptozoon perkinsi Seely.Cryptozoon? perkinsi Seely, Rep. State Geol. Vermont, 4, 1904, p. 150.Chazyan: Isle la Motte, Vermont. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 297Cryptozoon proliferum Hall.Cryptozoon proliferum Hall, 3Gth Rep. New York State Mus. Nat. Hist., 1884, pi.6.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 163, fig.?Dawson,Canadian Rec. Sci., 7, 1896, p. 204, fig. 2.?Grabau and Shimer, N. A. IndexFossils, 1, 1906, p. 46.?Seely, Rep. State Geol. Vermont, 5, 1906, p. 161.?Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, p. 155, pi. 18, fig. 2.?Wieland,Bull. Amer. Mus. Nat. Hist., 33, 1914, p. 244, fig. 2.?Walcott, Smiths. MiscColl., 57, 1912, p. 258, pi. 37, figs. 1-3.Upper Cambrian or Ozarkian: Saratoga and Herkimer Counties, New York(Hoyt); Pennsylvania; Maryland; Virginia (Conococheague).Plesiotype.?Cat. Nos. 56629, 58541, 58543, U.S.N.M.Cryptozoon saxiroseum Seely.Cryptozoon saxiroseum Seely, Rep. State Geol. Vermont, 5, 1906, p. 162, pis.36, 37, figs. 3-6.?Perkins, Rep. State Geol. Vermont, 8, 1912, pi. 16.Canadian (Beekmantown): Beekmantown, New York.Cryptozoon steeli Seely.Cryptozoon steeli Seely, Rep. State Geol. Vermont, 5, 1906, p. 161, pis. 34, 36,43, fig. 1.Canadian (Beekmantown): Clinton County, New York; Pennsylvania; Maryland.Cryptozoon wingi Seely.Cryptozoon wingi Seely, Rep. State Geol. Vermont, 5, 1906, p. 163, pi. 38.Canadian (Beekmantown): Mount Independence, Orwell County, Vermont.Crystallocystis aurantium Haeckel. See Echinosphserites aurantium.CTENOBOLBINA Ulrich. Genotype: Beyrichia ciliata Emmons.Ctenobolbina Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 108.?Miller,N. A. Geol. Pal., 1st App., 1892, p. 706.?Ulrich, Geol. Minnesota, 3, pt. 2,1894, p. 673.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 309.?Ulrich,Jour. Cincinnati Soc. Nat. Hist., 19, 1900, p. 180.?Ulrich and Bassler, Proc.U. S. Nat. Mus., 35, 1908, p. 309.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 1040.?Bonnema, Mitt. Min. Geol. Inst. Groningen,2, 1909, p. 43.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 353.Ctenobolbina alata Ulrich.Ctenobolbina akta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 110, pi.7, figs. 4a-c.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 282, fig.6, pi. 40, figs. 6-8.Eden (McMicken): Cincinnati, Ohio, and vicinity.Cotypes?Cat. No. 41489, U.S.N.M.Ctenobolbina bispinosa Ulrich.Ctenobolbina bispinosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 110,pi. 7, fig. 6.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 4oifig. 9.Eden (McMcken): Cincinnati, Ohio, and vicinity.Holotype.?Cat. No. 41490, U.S.N.MCtenobolbina ciliata (Emmons).Beyricliia ciliata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 219, fig. 74c. ? Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 351.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 89, fig.?Jones, Quart. Jour. Geol. S8c.London, 46, 1890, p. 19, pi. 3, figs. 12-16; pi. 4, figs. 16-18. 298 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Ctenobolblna cillata?Continued.Ctenobolbina ciliata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 108,pi. 7, figs, la, b.?Ruedemann, BulL New York State Mus., 42, Pal., 8, 1901,p. 575, pi. 2, figs. 8, 9.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p.282, fig. 7, pi. 40, figs. 1, 2.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 353, fig. 1660, t, t^?Bassler, Zittel-Eastman Textb. Pal., 1913, p.738, fig. 1425e.Beyrichia tumifrons Hall, Desc. n. sp. Fossils, Cincinnati, Ohio, 1871, p. 7, pi.4, fig. 11; 24th Ptep. New York State Mus. Nat. Hist., 1872, p. 231, pi. 8,fig. 11.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 119.?Hall and Whit-field, Geol. Surv. Ohio, Pal., 2, 1875, p. 102, pi. 4, fig. 8.Eden: Cincinnati, Ohio, and vicinity.Trenton (Snake Hill): Green Island, Albany County, New York.Plesiotypes.?C&t. No. 41492, U.S.N.M.Ctenobolbina ciliata cornuta Ruedemann.Ctenobolbina ciliata cornuta Ruedemann, Bull. New York State Mus., 42, Pal.,1901, p. 575, pi. 2, figs. 5-7.Trenton (Snake Hill): Mechanicsville, Saratoga County, and Green Island,Albany County, New York.Ctenobolbina ciliata var. curta Ulrich. See Ctenobolbina cv.rta.Ctenobolbina ciliata var. emaciata Ulrich. See Ctenobolbina emaciata.Ctenobolbina ciliata var. hammelli Cumings. See Ctenobolbina hammelli.Ctenobolbina crassa (Ulrich).Jonesella crassa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 123, pi. 7,figs, lla-c.Ctenobolbina crassa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 075, pi. 44, figs.12-16.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 40, figs. 15, 16.Black River (Decorah): Minneapolis, Cannon Falls, etc., ^Minnesota.Cotypes?Cat. No. 41497, U.S.N.M.Ctenobolbina curta (Uhich).Ctenobolbina ciliata var. curta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890,p. 109, pi. 7, fig. 2.Ctenobolbina curta Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 310.Eden (McMicken): Cincinnati, Ohio, and vicinity.Ctenobolbina denticula Ulrich and Bassler.Ctenobolbina? denticula Ulrich and Bassler, Maryland Geol. Si:rv., Low. Dov.,1913, p. 524, pi. 96, figs. 6-9.Helderbergian (Keyser): Cumberland, Maryland.Holotype?Cat. No. 43307, U.S.N.M.Ctenobolbina? dubia Ulrich and Bassler.Ctenobolbina? dubia Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913,p. 525, pi. 96, figs. 10-12.Helderbergian (Keyser): Cumberland, Maryland.IMotype.?Cat. No. 53277, U.S.N.M.Ctenobolbina duryi (Miller).BejTichia duryi Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 232, figs. 24, 25. ? ^ miler, N. A. Geol. Pal., 1889, p. 534, figs. 976, 977.Ctenobolbina duryi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 108.Maysville (McMillan): Cincinnati, Ohio, and vicinity. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 299Ctenobolblna emaclata (Ulrich).Ctenobolbina ciliata var. emaciata Ulricli, Jour. Cincinnati Soc. Nat. Hist., 13,1890, p. 109, pi. 7, figs. 3a-c.Ctenobolbina emaciata Ulrich and Baesler, Proc. U. S. Nat. Mus., 35, 1908, p.310, pi. 40, figs. 3-5.Richmond (Maquoketa): Savannah, Illinois.Eolotype?Cat. No. 41325, U.S.N.MCtenobolbina fulcrata Ulrich.Ctenobolbina fiilcrata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 674, pi. 44, figs.8-11.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 297, fig. 40, pi.40, figs. 13, 14.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 353, fig.1660, r, r', s.Black River (Decorah): St. Paul, Minnesota.Cotypes.?Cat. No. 41322, U.S.N.M.Ctenobolbina hammelli (Miller and Faber).Beyricliia hammelli Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, ' p. 156, pi. 8, fig. 26.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 787, fig. 1458.Ctenobolbina hammelli Ulrich and Bassler, Proc. U. S. Nat. Mus. 35, 1908, p. 310.Ctenobolbina ciliata var. hammelli Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 1045, pi. 53, fig. 6.Richmond (Arnheim-Waynesville) : Versailles, etc., Indiana; Lebanon, etc.,Ohio.Ctenobolbina obllqua Ulrich.Ctenobolbina obliqua Ulrich, Jour. Cincinnati Soc. Nat. Hist., 19, 1900, p. 180,pi. 8, fig. 4.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 40,fig. 10.Trenton (Prosser): Kenyon, Minnesota.Eolotype.?Gat. No. 41328, U.S.N.M.Ctenobolbina punctata Ulrich.Ctenobolbina punctata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 186,pi. 12, figs. 5a-c.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi.40, figs. 19, 20.Clinton (Rochester): Lockport, etc.. New York; Grimsby, Ontario.Eolotype.?Cat. No. 41578, U.S.N.M.Ctenobolbina subcrassa Ulrich.Ctenobolbina subcrassa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 19, 1900, p.180, pi. 8, figs. 1-3.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p.293, fig. 27; p. 297, fig. 42, pi. 40, figs. 17, 18.Stones River (Ridley): High Bridge, Kentucky.Cotype.?Cat. No. 41316, U.S.N.M.Ctenobolbina subrotunda Ruedemann.Ctenobolbina subrotunda Ruedemann, Bull. "New York State Mus., 42, Pal.,1901, p. 576, pi. 2, figs. 1-4.Trenton (Snake Hill): Port Schuyler, New York.Ctenobolbina tumida Ulrich. See Boyrichia tumida.Ctenocrinus l^vls Roemer. See Melocrim;3 roemeri.Ctenocrinus ornatus Hall. See Macrostylocrinus ornatus.Ctenocrinus striatus Hall. See Macrostylocrinus siriatiis. 300 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CTENODONTA Salter. Genotype: Tellinomya nasuta Hall.Nucula Hall (not Lamarck), Geol. Rep. 4th Dist. New York, 1842, p. 76- Amer.Jour. Sci., 48, 1843, p. 292; Pal. New York, 1, 1847, pp. 150, 316.Lyrodesma Hall (part), Pal. New York, 1, 1847, p. 302.Ctenodonta Salter, Rep. British Assoc. Adv. Sci., 1851, p. 63; Rep. 21st Meeting,British Assoc. Adv. Sci., Notes and Abstracts, 1852, p. 64; Geol. Surv.Canada, dec. 1, 1859, p. 34.?Winchell, Proc. Acad. Nat. Sci. Philadelphia,1865, p. 128-129.?Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 308.?Zittel, Handb. d. Pal., 2, 1881, p. 51.?Lesley, Proc. Geol. Assoc. London, 10,1888, p. 395.?Barrois, Ann. Soc. Geol. Nord, 19, Lille, 1891, p. 184.?Ulrich,Geol Surv. Ohio, 7, 1893, p. 679; Geol. Minnesota, 3, pt. 2, 1894, p. 578.?WTiidborne, Mon. Dev. Fauna South England, 3, Pal. Soc, 1896, p. 98.?Koken, Die Leitfossilien, Leipzig, 1896, p. 194.?Hind, Mon. British Carb.Lamellibranchiata, 1, Pal. Soc, 1897, pp. 177, 209.?Dall, Zittel-EastmanTextb. Pal., 1, 1900, p. 363.?Cnmings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 979.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.393.?Dall, Zittel-Eastmann Textb. Pal., 2d ed., 1913, p. 440.Tellinomya Hall, Pal. New York, 1, 1847, p. 151.?Pictet, Traite de Pal., 2d ed.,3, 1855, p. 534.?Hall, Canadian Nat. Geol., 1, 1856, p. 391; 10th Rep. NewYork State Cab. Nat. Hist., 1857, pp. 181, 182, (extr., pp. 141, 142); Amer.Jour. Sci. and Arts, 2d ser., 25, 1858, p. 108; Pal. New York, 3, 1859, p. 14,footnote; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 76.?Hitchcock,Geol. Vermont, 1, 1861, p. 295.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874,pp. 228, 229.?Salter, Mem. Geol. Surv. Great Britain, 2d ed., 1881, p. 550.?Koninck, Ann. d. Mus., Royal d'Hist. Nat. de Belgique, 11, 1885, p. 138. ? Miller, N. A. Geol. Pal., 1889, p. 514.?Miller and Faber, Jour. CincinnatiSoc. Nat. Hist., 17, 1894, pp. 148-150.?Sardeson, Bull. Minnesota Acad.Nat. Sci., 4, 1896, p. 73.?Hind, Mon. British Carb. Lamellibranchiata, 1,Pal. Soc, 1897, p. 177 (Genotype: T. nasuta Hall).Not Tellinomya, the correct form of Tellimya Brown, 1827, as given by Agassizin his "Nomenclator Zoologicus" in 1846.Palaeoconcha Miller, N. A. Geol. Pal., 1889, p. 498 (Genotype: P. faberi Miller),Ctenodonta abrupta Billings.Ctenodonta abnipta Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 46, figs.48a-c (adv. sheets, 1862); Geol. Canada, Geol. Surv. Canada, 1863, p. 143,figs. 79a-c; p. 175, figs. 161a-b.Tellinomya abrupta Miller, N. A. Geol. Pal., 1889. p. 514 (gen. ref.).Black River (Leray): Pauquettes Rapids, Ottawa River, Canada.Ctenodonta? absimilis (Sardeson).Tellinomya absimilis Sardeson. Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 74,pi. 3, figs. 1, 2.St. Peter: Highland Park, Minnesota.Ctenodonta albertina Ulrich.Ctenodonta albertina Ulrich, Geol. Minnesota. 3, 1894, p. 598, pi. 42, figs. 76-82.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502m.Richmond (Waynesville) : Clarksville, etc., Ohio,Cotypes.?G&t. No. 46122, U.S.N.MCtenodonta alta (Hall),Tellinomya alta Hall. Rep. Geol. Surv. Wisconsin, 1861, p. 27.- -Meek andWorthen, Geol. Surv. Illinois, 3, 1868, p. 309, pi. 2, figs. 6a, b.?Whitfield,Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 50, pi. 6, figs. 5-8. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 301Ctenodonta alta?Continued.Ctenodonta alta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 602, pi. 42, figs. 93, 94.?Grabaii and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502k-l.Trenton: Mount Carrol, Illinois; Dodgeville, Wisconsin (Galena); Fountain, Min-nesota (Prosser).Plesiotype.?Cat. No, 46123, U.S.N.M-Ctenodonta angela Billings.Ctenodonta Angela Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 221,fig. 203.Tellinomya Angela Miller, N. A. Geol. Pal., 1889, p. 514 (gen. ref.).Chazyan (Quebec?M): Table Head, Newfoundland.Ctenodonta? angustata (Hall).Tellinomya angustata Hall, Canadian Nat. Geol., 5, 1860, p. 152.Silurian: Arisaig, Nova Scotia.Ctenodonta astartaeformis Salter.Ctenodonta astartaeformis Salter, Geol. Surv. Canada, dec. 1, 1859, p. 39, pi. 8,figs. 7, 7a.?Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 175, figs. 164a, b.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 184 (loc,occ).?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394.Ctenodonta cf. astartaeformis Ruedemann, Bull. New York State Mus., 49, 1901,p. 28.Tellinomya astartaefonnis Miller, N. A. Geol. Pal., 1889, p. 515 (gen. ref.).Black River: AUumette Island, Ottawa River, Canada (Leray); Lake Winnipeg,Manitoba.Ctenodonta? attenuata (Hall).Tellinomya attenuata Hall, Canadian Nat. Geol., 5, 1860, p. 151.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1890, p. 1164.Silurian: Arisaig, Nova Scotia.Ctenodonta auburnensis Branson,Ctenodonta auburnensis Branson, Trans. Acad. Sci. St. Louis, 18, No. 4, 1909,p. 40, pi. 7, figs. 2-4.Black River (Auburn-Decorah): Lincoln County, Missouri.Ctenodonta bafflnensis Ulrich.Ctenodonta baffinensis Ulrich in Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 161,pi. 13, figs. 7-10.Mohawkian: Head of Frobisher Bay, Baffin Land.Ctenodonta bidorsata Raymond.Ctenodonta? bidorsata Raymond, Ann. Carnegie Mus., 3, 1906, p. 577.Chazyan (Crown Point) : Valcour Island, New York.Ctenodonta calvlni Ulrich.Ctenodonta calvini Ulrich, Geol. Minnesota, 3, 1894, p. 596, pi. 42, figs. 61-64.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502n.Tellinomya calvlni Miller, N. A. Geol. Pal., 1897, p. 785 (gen. ref.).Richmond (Maquoketa): Graf, etc., Iowa; Scales Mound, Illinois.Cotypes.?Cat. No. 46124, U.S.N.M.Ctenodonta candens (Sardeson).Tellinomya candens, Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 339,pi. 6, fig. 24; p. 343.Black River (Decorah): Minneapolis, Minnesota. 302 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ctenodonta carinata Ulrich.Ctenodonta carinata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 589, pi. 42, figs.41^3.Tellinomya carinata Miller, N. A. Geol. Pal., 2d App., 1897, p. 785 (gen. ref.).Trenton (Prosser): East of Fountain, Minnesota.Cotypes?Cat. No. 46124, U.S.N.M.Ctenodonta carpenderi Schuchert.Ctenodonta carpenderi Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 100, pi. 13,figs. 1-3.Mohawkian: Head of Frobisher Bay, Baffin Land.Cotypes?Cat. No. 28164, U.S.N.M.Ctenodonta cingulata (Ulrich).Tellinomya cingulata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 23, pi.7, figs. 19, 19a.Ctenodonta cingulata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 680, pi. 48, figs. 10-12.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 997, pi. 44,figs. 5, 5a.Richmond: Marble Hill, near Madison, Indiana; Dayton, Ohio; Boyle and Old-ham Counties, Kentucky.Tlolotype and plesiotypes.?Cat. Nos. 46126, 46127, U.S.N.MCtenodonta clarkei Bassler (new name).Tellinomya pulchella Clarke (not Hall, 1856), Archivos Mus. Nac. Rio de Janeiro,10, author's Engl, ed., 1900, p. 17, pi. 2, figs. 13-15.Silurian: Rio Trombetas, Brazil.Ctenodonta clintonensis (Foerste).Tellinomya (Nuciila?) Clintonensis Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p.563, pi. 37, fig. 15.Clinton: Near Mifflintown, Juniata County, Pennsylvania.Ctenodonta compressa (Ulrich).Tellinomya compressa Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1892, p. 216, fig. 2.Ctenodonta compressa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 600, pi. 37, fig.29; pi. 42, figs. 88-90.Black River (Decorah): Goodhue County, Minnesota.Eolotype and plesiotypes.?Cat. No. 46128, U.S.N.M.Ctenodonta contracta Salter.Ctenodonta contracta Salter, Geol. Surv. Canada, dec. 1, 1859, p. 37, pi. 8, figs.4, 5.?Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 175, fig. 160a, b.Tellinomya contracta Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 76, pi. 11, 1884,figs. 15, 15a.Tellinomya cuneata Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, p. 183(ext., p. 143), figs. 6, 7 (not described; probably in error for contracta); Rep.Geol. Surv. Wisconsin, 1862, p. 38, figs. 1, 2.Black River (Leray): Pauquettes Rapids, Ottawa River, etc., Canada.Upper Pogonip: Eureka and White Pine Districts, Nevada.Plesintype.?Cat. No. 17284, U. S. N.M. (Walcott).Ctenodonta costata Branson.Ctenodonta costata Branson, Trans. Acad. Sci. St. Louis, 18, No. 4, 1909, p. 40,pi. 7, figs. 7, 8.Black River (Aubum-Decorah): Lincoln Coimty, Missouri. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 303Ctenodonta cunelformls Ulrich.Ctenodonta cuneiformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 587, pi. 42,figs. 31-33.Tellinomya cuneiformis Miller, N. A. Geol. Pal., 1897, p. 785 (gen. ref.).Black River (Decorah): Six miles south of Cannon Falls, Minnesota.Cotypes.?Cat. No. 46129, U.S.N.M.Ctenodonta curta (Hall).Tellinomya curta Hall, Pal. New York, 2, 1852, p. 86, pi. 27, figs. 10, 13.Lower Clinton: AVolcott, Wayne County, New York.Ctenodonta declivis Ruedemann.Ctenodonta declivis Ruedemann, Bull. New York State Mus., 1G2, 1912, p. 101,pi. 6, figs. 2, 3.Trenton (Snake Hill): Snake Hill, Saratoga County, New York.Ctenodonta dimlnuens (Simpson).Tellinomya (Paleeoneilo) diminuens Simpson, Trans. Amer. Philos. Soc, n. s., 16,1889, p. 453, fig. 22.?Simpson in Lesley Geol. Svu"v. Pennsylvania, Rep.P 4, 1890, p. 1165, fig.Tellinomya cuneata Simpson in Lesley, Geol. Sxurv. Pennsylvania, Rep. P4, 1890,p. 1164, fig.Tellinomya (Paleeoneilo)^ cuneata Simpson, Trans. Amer. Philos. Soc, n. s., 16,1889, p. 453, fig. 21.Clinton: Near Lewistown and Orbisonia, Pennsylvania.Ctenodonta donaciformis (Hall).Nucula? donaciformis Hall, Pal. New York, 1, 1847, p. 316.Tellinomya donaciformis Hall, Canadian Nat. Geol., 1, 1856, p. 395 (gen. ref.).Ctenodonta donaciformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 581 (gen. ref.).Trenton: Middleville, New York.Ctenodonta dubia (Hall).Tellinomya dubia Hall, Pal. New York, 1, 1847, p. 153, pi. 34, figs. 6a-f; CanadianNat. Geol., 1, 1856, p. 392, figs. 4, 5.?Lesley, Geol. Surv. Pennsylvania, Rep.P 4, 1890, p. 1165, figs.Lyonsia dubia Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, pi. 14, figs. 7, 8, 12,13.Ctenodonta dubia Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 175, fig.163a, b.Trenton: Middleville, Watertown, Trenton Falls, etc.. New York.Ctenodonta dubiaformls Raymond.Ctenodonta dubiaformis Raymond, Amer. Jour. Sci., 20, 1905, p. 371.Chazyan (Crown Point): Sloop Bay, Valcour Island, New York.Ctenodonta elliptica (Hall).Tellinomya elliptica Hall, Pal. New York, 2, 1852, p. 102, pi. 30, fig. 4b.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1165, fig.?Foerste, Geol. Surv.Ohio, Pal., 7, 1893, p. 562, pi. 37, figs. 4a-c.Upper Clinton: Near ^Mohawk, New York.Upper Medinan (Brassfield): Todda Fork near Wilmington, Ohio.Ctenodonta equllatera (Hall).Tellinomya? equilatera Hall, Pal. New York, 2, 1852, p. 330, pi. 75, fig. la-d.?Grabau, Bull. New York State Mus., 92, 1906, p. 109, fig. 15. 304 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ctenodonta equUatera?Continued.Tellinomya (Ctenodonta) equilatera Clarke and Ruedemann, Bull. New YorkState Mus., 65, 1903, p. 520 (gen. ref.).Ctenodonta equilatera Grabau and Shimer, N. A. Index Foscila, 1, 1909, p. 395.Cayugan (Cobleskill): Schoharie, New York.Ctenodonta fecunda (Hall).Nucula (Tellinomya) fecunda Hall, Geol. Surv. Wisconsin, 1, 1862, p. 55, fig. 1.Ctenodonta fecunda Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 595, pi. 42, figs,67-73.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502g-h.Richmond (Maquoketa): Dubuque, Iowa; Scales Moimd, Illinois; Wisconsin;Minnesota.Plesiotypes.?QoX. No. 46130, U.S.N.M.Ctenodonta fllistriata Ulrich.Tellinomya levataHall and Whitfield (not Hall, 1847), Pal. Ohio, 2, 1875, p. 82.Ctenodonta fllistriata Ulrich, Geol. ]\Iinnesota, 3, pt. 2, 1894, p. 599, fig. 44a-e.Eden: Covington, S^entucky, and vicinity.Cotyi^es.?QoX. No. 46131, U.S.N.M.Ctenodonta frobisherensis Schuchert.Ctenodonta frobisherensis Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 161, pi.13, figs. 11-14.Mohawkian: Head of Frobisher Bay, Bafiin Land.Cotypes.?QdX. No. 28165, U.S.N.M.Ctenodonta gibberula Salter.Ctenodonta gibberula Salter, Canadian Org. Rem., dec. 1, 1857, p. 38, pi. 8, fig.6.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 587, pi. 42, fig. 37; fig. 44f-g, p.599.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 393, fig. 502c-d.Tellinomya ventricosa Hall"; Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 27; Rep.Geol. Sm-v. Wisconsin, 1862, p. 38, fig. 4.?Meek and Worthen, Geol. Siu-v.Illinois, 3, 1868, p. 307, pi. 2, figs. 7a-c.?Chamberlin, Geol. Wisconsin, 1,1883, p. 156.?Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 51,pi. 6, figs. 1-4.Black River: Pauquette Rapids, etc., Canada (Leray), Beloit, Wisconsin; Minne-sota; Illinois; Iowa; etc.Stones River (Miufreesboro): Murfreesboro, Tennessee.Plesiotype?Cat. No. 46132, U.S.N.M.Ctenodonta gibbosa (Hall),Tellinomya gibbosa Hall, Pal. New York, 1, 1847, p. 153, pi. 34, figs. 5a,b.?Les-ley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1168, figs.Tellinomya (Ctenodonta) gibbosa Clarke and Ruedemann, Bull. New York StateMus., 65, 1903, p. 520 (gen. ref.).Lyonsia gibbosa Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, pi. 14, fig. 3.Ctenodonta gibbosa Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 176,fig. 165.Trenton: Middleville, New York.Ctenodonta hamburgensis (Walcott).Tellinomya Hamburgensis Walcott, .Mon. U. S. Geol Surv., 8, 1884, p. 76, pi. 11,figs. 1, la.Ctenodonta hamburgensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 605, pi. 42,figs. 91, 92.Upper Pogonip: Eureka District, Nevada.Black River (Decorah): Chatfield, Minnesota.Eolotype and plesiotype.?Cat. Nos. 17286, 46133, U.S.N.M. BIBLIOGRAPHIC LIST OE GENERA AND SPECIES. 305Ctenodonta hartSTillensIs SaSord.Ctenodonta Hartavillensis Safford, Geol. Tennessee, 1869, p. 287, pi. 2 (F), figs.3a-f.Tellinomya (Ctenodonta) hartsvillensia Lesley, Geol. Sur^^ Pennsylvania, Rep.P 4, 1890, p. 1168, figs.Trenton: Hartsville, etc., Tennessee (Catheys); Kentucky (Flanagan).Ctenodonta? hlUi (Miller).Tellinomya hilli Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 230, fig. 20; N. A.Geol. Pal., 1889, p. 515, fig. 931.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 1021, pi. 48, fig. 6.Ctenodonta? hilli Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 581 (gen ref.).Richmond (Whitewater-Saluda) : Near Osgood, Indiana.Ctenodonta inflata (Hall).Tellinomya inflata Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 26; 1862, p. 38,figs. 4, 5.?Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 49, pi. 6,figs. 10-12.Black River (Platteville): Mineral Point, Wisconsin.Ctenodonta Intermedia (Ulrich).Tellinomya intermedia Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1892, p. 218, text fig. 4.Ctenodonta intermedia Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 601, pi. 42, figs.95-97.Trenton (Prosser): Wykoff, etc., Minnesota.Cotypes.?C2it. No. 46134, U.S.N.M.Ctenodonta Iphlgenia Billings.Ctenodonta Iphigenia Billings, Geol Canada, Geol. Surv. Canada, 1863, p. 216,fig. 221; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 152, fig. 132 (adv. sheets1862).Tellinomya Iphigenia Miller, N. A. Geol, Pal., 1889, p. 515 (gen. rsf.).Richmond: Cape Smyth, Lake Huron.Ctenodonta jerseyensls Weller.Ctenodonta jerseyensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 164, pi.11, fig. 17.Black River (Jacksonburg) : Jacksonburg, New Jersey.Ctenodonta? lata (Hall).Tellinomya lata Hall, Pal. New York, 2, 1852, p. 85, pi. 27, fig. 7.Clinton: Wolcott, New York.Ctenodonta levata (Hall).Nucula levata Hall, Pal. New York, 1, 1847, p. 150, pi. 34, figs, la-i.?McCoy,Brit. Pal. Rocks and Foss., 1854, p. 285, pi. 1 K, figs. 4, 5.Leda levata Emmons, Amer. Geology, 1, pt. 2, 1.855, p. 173, pi. 14, fig. 10.Tellinomya levata Hall, Canadian Nat. Geol., 1, 1856, p. 395 (gen. ref.).?Hitch-cock, Geol. Vermont, 1, 1861, p. 295.?Hall, Desc. N. Sp. Fossils, Cincinnati,Ohio, 1871, pi. 3, fig. 27.?Emerson, Nan-ative Hall's 2d Arctic Exped.,U. S. Navy Dep., ?879, p. 578, fig. 3.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1890, p. 1168, figs.Tellinomya (Ctenodonta) levata Clarke and Ruedemann, Bull. New York StateMus., 65, 1903, p. 521 (gen. ref.).84243??Bull. 92?15 20 306 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ctenodonta levata?Continued.Ctenodonta levata Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 175, figs.162a, b.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 165, pi. 11, figs.18-22.?Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 394.?Ruede-mann. Bull. New York State Mus., 162, 1912, p. 100, pi. 6, fig. 1.Trenton: Middleville, Trenton Falls, etc., New York; New Jersey; Pennsylva-nia; Kentucky, etc.Ctenodonta iimbata Raymond. See Vanuxemia limbata.Ctenodonta logani Salter (part). See Ctenodonta nasuta.Ctenodonta logani Salter.Tellinomya dubia Hall (not Hall, 1847), 10th Ann. Rep. Reg. Univ. New York,1857, p. 183, figs. 4, 5.Ctenodonta logani Salter, Canadian Org. Rem., dec. 1, 1859, p. 36, pi. 8, figs. 3, 3a.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 591, pi. 42, figs. 26-28.?Grabau andShimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502a-b.Black River: Pauquettes Rapids, Ottawa River, etc., Canada (Leray); Beloit,Wisconsin (Platteville).Ctenodonta longa (Ulrich).Tellinomya longa Ukich, Amer. Geol., 10, 1892, p. 103, pi. 7, figs. 17, 18.Ctenodonta longa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 590, pi. 38, figs. 30, 31.Black River (Decorah): Goodhue County, Minnesota.Holotype?Cat. No. 46135, U.S.N.M.Ctenodonta lorrainensis Foerste.Ctenodonta lorrainensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 305,pi. 3, figs. 8a -b.Cincinnatian (Pulaski) : Near Worthville and Lorraine, New York; Chambly,Quebec.Ctenodonta machseriforniis (Hall).Nucula machteriformis Hall, Geol. Rep. 4th Dist. New York, 1843, p. 76, fig. 2;tab. ill. 8, fig. 2.?Owen, Amer. Jour. Sci. and Arts, 48, 1845, p. 306, fig. 2.Tellinomya machaeriformis Hall, Pal. New York, 2, 1852, p. 85, pi. 27, figs. 8a-d,9.?Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1890, p. 1169, fig.Ctenodonta machaeriformis Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.394.Cypricardia? angustaHall, Nat. Hist. New York, Geol., 4, 1843, p. 76, fig. 6; tab.ill. 8, fig. 6.?Owen, Amer. Jour. Sci. and Arts, 48, 1845, p. 306, fig. 6.Cypricardites angustus Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.178, fig.Lower Clinton: Wolcott, New York.Ctenodonta mactriformis (Hall).Nucula mactrseformis Hall, Nat. Hist. New York, Geol., 4, 1843, p. 76, fig. 4; tab.ill. 8, fig. 4.Nucula mactriformis Owen, Amer. Jour. Sci. and Arts, 48, 1845, p. 306. fig. 4.Tellinomya mactriformis Miller, N. A. Geol. Pal., 1889, p. 515 (gen. ref.)?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1169, fig.Lower Clinton: Noav York.Ctenodonta madisonensis Ulrich.Ctenodonta madisonensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 597, pi. 42, figs.65-66.Richmond (Arnheim): Madison, Indiana.Ilolohjpe.?Cixt. No. 46136, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 307Ctenodonta medlalls Ulrich.Ctenodonta medialis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 593, pi. 42, figs.50-52.Black River (Decorah): Minneapolis, and near Cannon Falls Minnesota; LincolnCounty, Missouri.Cotypes.?Cat. Nos. 4G137, 46138, U.S.N.M.Ctenodonta minima (Foerste).Nucula minima Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 93, pi. 14,figs. 8a-c.Tellinomya (Nucula?) minima Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 563,pi. 26, figs. 8a-c; pi. 37, figs. 13a-c.Upper Medinan (Brassfield): Huffman's Quarry, near Dayton, Ohio.Ctenodonta nasuta (Hall).Tellinomya nasuta Hall, Pal. New York, 1, 1847, p. 152, pi. 34, figs. 3a-c.?Pictet, Traite de Pal., 2d ed., 3, 1855, p. 534, pi. 79, fig. 19.?Hall, CanadianNat. Geol., 1, 1856, p. 392, figs. 1-3; 10th Rep. New York State Cab. Nat.Hist., 1857, p. 183 (ext., p. 143), fig. 2 (part).?Hitchcock, Geol. Vermont, 1,1861, p. 296, fig. 204.?Wliitfield, Geol. Wisconsin, 4, 1882, p. 207, pi. 5, fig.12.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 156, fig.?Miller, N. A. Geol.Pal., 1889, p. 515, fig. 932.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1890, p. 1169, fig.?Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1904, p. 446, pi. 10, fig. 1.Tellinomya (Ctenodonta) nasuta Clarke and Ruedemann, Bull. New York StateMus., 65, 1903, p. 521 (gen. ref.).Lyonsia nasuta Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, fig. 40.Ctenodonta logani Salter, (not Salter, 1859), Rep. Brit. Assoc. Adv. Sci., 1851p. 63.Ctenodonta nasuta Salter, Canadian Org. Rem., dec. 1, 1859, p. 35, pi. 8, figs. 1,2.?Billings, Canadian Nat. Geol., 4, 1859, p. 446; Geol. Canada, Geol. Surv.Canada, 1863, p. 176, figs. 166a, b.?Roemer, Leth. geog., 1, Leth. Pal., Atlas,1876, pi. 4, fig. 15a.?(Ehlert, Bull. Soc. Geol. France, 3d ser., 16, 1888, p.663, pi. 16, figs. 3-3b.?Uhich, Geol. Minnesota, 3, pt. 2, 1894, p. 584, pi. 42,fig. 30.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 163, pi. 11, fig. 1.?Whiteaves, Ottawa Naturalist, 22, 1908, p. 106.?Grabau and Shimer, N. A.Index Fos.sils, 1, 1909, p. 393, fig. 502o.Trenton: Trenton Falls, etc., New York.Black River: Pauquettes Rapids, Ottawa River, etc., Canada; New Jersey;Indiana; Wisconsin; Missouri; Illinois; Minnesota; etc.Pledotype.?Cat. No. 46137, U.S.N.M.Ctenodonta nasuta robusta Ulrich.Tellinomya nasuta Hall (part), 10th Rep., New York State Cab. Nat. Hist., 1857,p. 183, figs. 1, 3.Ctenodonta nasuta var. robusta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 585, pi.42, fig. 30.Black River: Beloit, Wisconsin (Platteville); Pauquettes Rapids, Ottawa River,Canada (Leray).IToloiype.?Cat. No. 46140, U.S.N.M.Ctenodonta nitida (Ubrich).Tellinomya nitida Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1892, p. 215, fig. 1. 308 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ctenodonta nitida?Continued.Ctenodonta nitida Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 592, pi. 42, figs.44-49.Black River (Decorah): Minneapolis, etc., Minnesota.Cotypes.?Cat. No. 46141, U.S.N.M.Ctenodonta novicia (Sardeson).Tellinomya novicia Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 74,pi. 3, fig. 3.St. Peter: South St. Paul and Daytons Bluff, ^Minnesota.Ctenodonta? nucleiformis (Hall).TelUnomya nucleiformis Hall, Pal. New York, 3, 1859, p. 263, pi. 49, fig. 1.Cayugan (Manlius): Winfield, Herkimer County, New York.Ctenodonta nuculiformis (Hall).Modiolopsis? nuculiformis Hall, Pal. New York, 1, 1847, p. 298, pi. 82, figs. 5a, b.Tellinomya nuculiformis Miller, N. A. Geol. Pal., 1889, p. 515 (gen. ref.).Lyonsia nuculiformis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 172.Ctenodonta nuculiformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 581 (gen. ref.).TJtica: Turin and Waterford, New York.Ctenodonta obliqua (Hall).Nucula obliqua Hall, Amer. Joiu". Sci. and Arts, 43, 1845, p. 292.Tellinomya? obliqua Meek, Pal. Ohio, 1, 1873, p. 139, pi. 11, figs, lla-c.?Miller,Cincinnati Quart. Jour. Sci., 1, 1874, p. 229.?Lesley, Geol. Surv. Pennsyl-vania, Rep. P 4, 1890, p. 1169, figs.Ctenodonta obliqua Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 604, pi. 42, figs.83-87.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig. 502i-j.Palseoconcha obliqua Miller, N. A. Geol. Pal., 1889, p. 498 (gen. ref.).Palteoconcha faberi .Miller, N. A. Geol. Pal., 1889, p. 498, fig. 878.?Miller andFaber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, p. 150.Trenton-Richmond: Cincinnati, Ohio, and vicinity; Kentucky; Tennessee;Illinois; Iowa; etc.Plesiotypes.?Cat. No. 46142, 46143, U.S.N.M.Ctenodonta ohioensis Bassler (new name).Tellinomya (Nucula?) socialis Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 563,pi. 37, figs. 12a-c.Upper Medinan (Brassfield): Near Dayton, Ohio.Ctenodonta ovata (Hall).Tellinomya ovata Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 28.?Whit-field," Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 52, pi. 6, fig. 9.Ctenodonta ovata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 581 (gen. ref.).Black River (Platteville): Beloit, Wisconsin.Ctenodonta oviformis Ulrich.Ctenodonta oviformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 586, pi. 42, fig. 29.Trenton (Prosser): Near Cannon Falls, Minnesota.Black River (Auburn): Lincoln County, Missouri.Eolotype?Cat. No. 46144, U.S.N.M.Ctenodonta parvidens Raymond.Ctenodonta parvidens Raymond, Amer. Jour. Sci., 20, 1905, p. 372.?^Miiteaves,Ottawa Nat., 22, 1908, p. 113, pi. 3, fig. 16.Chazyan (Aylmer): Ilog Back, Ottawa, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 309Ctenodonta pectunculoldes (Hall).Tellinomya pectunculoldes Hall, 24th Rep. New York State Cab. Nat. Hist.,1872,' p. 228, pi. 7, fig. 26. (Separate, 1871, p. 4, pi. 3, fig. 26.)?Miller, Cin-cinnati Quart. Jour. Sci., 1, 1874, p. 229.?Hall and ^^^litfield, Geol. SurvOhio, Pal., 2, 1875, p. SI; pi. 1, fig. 24.?Lesley, Geol. Surv. Pennsylvania'Rep. P 4, 1890, p. 1169, fig.Eden-Maysville: Cincinnati, Ohio, and vicinity.Ctenodonta peracuta Raymond.Ctenodonta peracuta Raymond, Amer. Jour. Sci., 20, 1905, p. 371.Chazyan (Crown Point, Valcour): Sloop Bay, Valcour Island, New York.Ctenodonta perminuta Ulrich.Ctenodonta perminuta Ulrich, Geol. Surv. Ohio, 7, 1893, p. 680, pi. 46, figs. 11-14.Eden-Maysville: Cincinnati, Ohio, and vicinity.Cotypes.?Cat. No. 46145, U.S.N.M.Ctenodonta planodorsata (Ulrich).Tellinomya planodorsata Uhich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minne-sota, 1892, p. 217, fig. 3.Ctenodonta planodorsata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 589, pi. 37,figs. 25-28; pi. 42, figs. 38-40.Black River (Decorah): Cannon Falls, etc., Minnesota.Eolotype and plesiotypes.?Cat. No. 46146, U.S.N.M.Ctenodonta prosserl Ruedemann.Ctenodonta prosseri Ruedemann, Bull. New York State Mus., 162, 1912, pi. 6,figs. 4, 5.Trenton (Snake Hill): Snake Hill, etc., Saratoga and Albany Counties, New York.Ctenodonta pulchella (Hall).Lyrodesma pulchella Hall, Pal. New York, 1, 1847, p. 302, pi. 82, figs. 12a-d.Tellinomya pulchella Hall, Canadian Nat. Geol., 1, 1856, p. 395 (gen. ref.).Leda pulchella Emmons, Amer. Geology, 1, pt. 2, 1855, p. 173.Ctenodonta pulchella Uhich, Geol. Minnesota, 3, pt. 2, 1894, p. 581 (gen. ref.).Trenton: Near Watertown, etc.. New York.Ctenodonta radiata Ruedemann.Ctenodonta radiata Ruedemann, Bull. New York State Mus., 162, 1912, p. 102,pi. 6, fig. 6.Trenton (Snake Hill)^Snake Hill, Saratoga County, New York.Ctenodonta recta Ruedemann.Ctenodonta recta Ruedemann, Bull. New York State Mus., 162, 1912, p. 102,pi. 6, figs. 7, 8.Trenton (Snake Hill): Snake Hill, Saratoga County, New York.Ctenodonta recurva (Ulrich).Tellinomya recurva Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1892, p. 221, fig. 7.Ctenodonta recurva I'lrich, Geol. Minnesota, 3, pt. 2, 1894, p. 603, pi. 42, figs.98-101.Richmond: Spring Valley, etc.; Minnesota; Oxford, Waynesville, etc., Ohio;Richmond, Indiana.Cotypes?Cat. No. 46147, U.S.N.M. 310 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ctenodonta retrorsa Ulrich.Ctenodonta retrorsa Ulrich, Geol. Surv. Ohio, 1893, p. 679, pi. 50, figs. 14, 15.Trenton (Hermitage): Near Burgin, Kentucky.Eolotype.?Cat. No. 46149, U.S.N.M.Ctenodonta sanguinolaroidea (Hall).Tellinomya sanguinolaroidea Hall, Pal. New York, 1, 1847, p. 152, pi. 34, figs.4a, b.Tellinomya (Ctenodonta) sanguinolaroidea Clarke and Ruedemann, Bull. New-York State Mus., 65, 1903, p. 521 (gen. ref.).Lyonsia sanguinolaroidea D'Orbigny, Prodr. Pal., 1, 1850, p. 10 (gen. ref.). ? Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, pi. 14, fig. 2.Trenton: Canajoharie and Middleville, New York.Ctenodonta scofleldl Ulrich.Ctenodonta scofieldi Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 593, pi. 42, figs.53-58.Tellinomya scofieldi Miller, N. A. Geol. Pal., 2d App., 1897, p. 785 (gen. ref.).Black River (Decorah): Cannon Falls and Minneapolis, Minnesota.Cotypes.?C&t. Nos. 46150, 46151, U.S.N.M.Ctenodonta similis (Uhich).Tellinomya similis Ulrich, 19th Ann. Rep. Geol. Nat. Hist, Sm-v. Minnesota,March, 1892, p. 220, fig. 6.Ctenodonta similis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 604, pi. 42, figp.102-106.Tellinomya (Nucula) lepida Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, April,1892, p. 339, pi 6, figs. 18-20.Richmond: Spring Valley, etc., Minnesota; Blanchester, Ohio.Cotypes and plesiotypes.?Cat. Nos. 46147, 46152, U.S.N.M,Ctenodonta simulatrix Ulrich.Ctenodonta simulatrix Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 600, pi. 42, figs.74, 75.Richmond (Maquoketa) : Near Spring Valley, Minnesota.Eolotype.?Cat. No. 46153, U.S.N.M.Ctenodonta sinuosa (Simpson).Nucula sinuosa Simpson, Trans. Amer. Phil. Soc, n. s., 16, 1890, p. 451, fig. 19.Clinton: Seven miles northwest of Lewistown, Pennsylvania.Ctenodonta socialis Ulrich.Ctenodonta socialis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 594, pi. 42, figs.59, 60.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 394, fig.502e-f.Tellinomya socialis Miller, N. A. Geol. Pal., 2d App., 1897, p. 785 (gen. ref.).Black River (Decorah): Minneapolis, Chatfield, etc., Minnesota.Trenton (Hermitage): Central Kentucky.Cotypes.?Cat. Nos. 46154, 46155, U.S.N.M.Ctenodonta subcuneata Ruedemann.Ctenodonta subcuneata Ruedemann, Bull. New York State Mus., 162, 1912,p. 103, pi. 6, figs. 9, 10.Trenton (Snake Hill), Snake Hill, Saratoga County, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 311Ctenodonta subelliptica Savage.Ctenodonta subelliptica Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 93, pi. 5,fig. 25.Upper Medinan (Edgewood): Near Edgewood, Missouri.Ctenodonta subnasuta Ulrich.Ctenodonta subnasuta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 585, pi. 42, figs.34-36.?Whiteaves, Tal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 185.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 160, pi. 13, figs. 4-6.Trenton: Near Cannon Falls, Minnesota (Prosser); Lake Winnipeg and BafllinLand, Canada.Holotype and plesiohjpe.?C&t. Nos. 46156, 28163, U.S.N.M.Ctenodonta subovata Whiteaves.Ctenodonta subovata Whiteaves, Ann. Rep. Geol. Surv. Canada, n. s., 14, App. F,1904, p. 47; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 256, pi. 27,figs. 9, 9a.Niagaran: Ekwan River, Canada.Ctenodonta subrecta (Clarke).Tellinomya subrecta Clarke, Archivos. Mus. Nac. Rio de Janeiro, 10, author'sEng. ed., 1900, p. 17, pi. 2, fig. 16.Silurian: Rio Trombetas, Brazil.Ctenodonta subrotunda (Ulrich).Tellinomya subrotunda Uhich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1892," p. 219, fig. 5.Ctenodonta subrotunda Hayes and Ulrich, U. S. Geol. Siuv. Folio 95, illus. sheet,1903, figs. 40, 41.Trenton: Mercer County, Kentucky (Curdsville); near Cannon Falls, Minnesota(Prosser); Tennessee (Bigby).Holotype.?Cat. No. 46157, U.S.N.M.Ctenodonta subtrigona (Simpson).Nucula subtrigona Simpson in Lesley, Geol. Surv. Pennsylvania, Rep. P 4, p. 472,figs.; Trans. Amer. Phil. Soc, n. s., 16, p. 452, fig. 20.Clinton: Orbisonia, Huntington County, Pennsylvania.CTENOPLEURON Matthew. Genotype: C. nerepisense Matthew.Ctenopleuron Matthew, Trans. Pi.oyal Soc. Canada, 3d ser., 1, sec. 4, 1907, p. 7.Ctenopleuron nerepisense Matthew.Ctenopleuron nerepisense Matthew, Trans. Royal Soc. Canada, 3d ser., 1, sec. 4,1907, p. 7, 1 pi.Clinton??: Cunningham Brook, near Nerepis Station, Kings Comity, New Bruns-wick.Ctenopteiius Clarke and Ruedemann. See Stylonurus subgenus Ctenopterus.CTENOPYGE Linnarsson. Genotype: Olenus (Sphaerophthalmus) pecten Salter.Ctenopyge Linnarsson, Geol. Foren. Stockholm Forh., 5, 1880, p. 145; Sver. Geol.Unders., ser. C, No. 43, 1880, p. 15.?Brogger, Die sil. Etagen 2-3, Kristiania,1882, p. 113.?Zittel, Handb. d. Pal., 2, 1885, p. 596.?Matthew Trans. RoyalSoc. Canada, 9, sec. 4, 1892, p. 55.?Koken, Die I;eitfossilien, Leipzig, 1896,p. 20, fig. 11; figs. 7, 14.?Liudstrom, Kongl. Sven. Vet.-Akad. Handl., No. 8,1901, pp. 26, 29.?Lake, Paleontcgraphical Soc, 1913, p. 78. 312 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ctenopyge acadica Matthew.Ctenopyge acadica Matthew, Trans. Royal Soc. Canada, 11, sec. 4, 1894, p. 109,pi. 17, figs. 13a-e.Canadian (Bretonian?Div. C3b): St. John, New Brunswick.Ctenopyge flagellifer Angelin. See Sphserophthalmua flagellifer.Ctenopyge? lobata (Brogger).Leptoplastus (Ctenopyge?) lobata Brogger, Die sil. Etagen 2-3, Kristiania, 1882,p. 121, pi. 12, fig."ll.Ctenopyge lobata? Matthew, Geol. Surv. Canada, Rep. Cambrian Rocks CapeBreton, 1003, p. 223.Lower OrdoAdcian: Europe; McNeil Brook, Cape Breton, Nova Scotia (Bre-tonian?Div. C3b).Ctenopyge pecten (Salter).Olenus (Sphairophthalmus) pecten Salter, Mem. Geol. Surv., dec. 11, 1864, p.9, pi. 8, figs. 11, 13; Quart. Jour. Geol. Soc. London, 21, 1865, p. 481, figs. 4, 5.Ctenopyge pecten Linnarsson, Geol. For. Stockholm Forh., 5, 1880, p. 146 (citesbibliography); Afh. Sveriges Geol. Unders, ser. C, No. 43, 1880, p. 16, pi. 2,figs. 3-0.?Lake, Faleontographical Soc, 1913, p. 85 (see for completebibliography).Lower Ordovician: Great Britain; East Bay, east of Bras d'Or Lake, Cape Breton,Nova Scotia; St. John, New Brunswick (Bretonian?Div. C3a, b).Ctenopyge spectabilis (Brogger).Leptoplastus (Ctenopyge) spectabilis Brogger, Lie sil. Etagen 2-3, Kristiania,1882, p. 123, pi. 2, fig. 18a, b; pi. 12, fig. 12a-c.Ctenopyge spectabilis var. Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892,p. 57, pi. 13, figs. 13a, b.Ctenopyge spectabilis Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8,1901, p. 51.Lower Ordovician: Europe; St. John, New Brunswick (Bretonian?Div. C3b).CUNEAMYA Hall and Whitfield. Genotype: C. miamiensis Hall and T\Tiitfield.Cuneamya Hall and Whitfield, Fal. Ohio, 2, 1875, p. 90.?Zittel, Handb. Pal., 2,1881, p. 128.?Miller, N. A. Geol. Fal., 1889, p. 473.?Uhich, Geol. Iinnnesota,3, pt. 2, 1894, p. 620.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.378.Cuneamya acutifrons Uhich.Cuneamya acutifrons Ulrich in Ruedemann, Bull. New York State Mus., 162,1912, p. 106, pi. 6, figs. 15, 16, text fig. 30.Trenton: Covington, Kentucky; Snake Hill, Saratoga County, New York (SnakeHill).Holotype.?Gat. No. 47314, U.S.N.M.Cuneamya alveata Whitfield and Hovey.Orthonota curta? Hall (not Hall, 1843), Pal. New York, 2, 1S52, pp. 86, 285, pi. 27,figs. 11a, b; pi. 59, fig. 8.Cuneamya alveata ViTiitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, 1899,pt, 2, p. 188.Lower Clinton: Walcott, New York.Cuneamya? caswelli (Foerste).Grammysia Caswelli Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 92, pL14, figs. 12a, b. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 313Cuneamya? caswelll?Continued.Cypricardites Caswelli Foerste, Geol. Surv. Ohio Pal., 7, 1893, p. 561, pi. 26,figs. 12a, b; pi. 37, figs. la-c.Upper Medinan (Brassfield): Soldier's Home, near Dayton, Ohio.Cuneamya eoriformis Miller.Cuneamya eoriformis Miller, N. A. Geol. Pal., 1889, p. 474, figs. 805, 806.Maysville (McMillan): Cincinnati, Ohio.Cuneamya curta ^\^litfield.Cuneam^^a curta Whitfield, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 138, pi.6, figs. 6, 6a.?Uhich, Geol. Minnesota, 3, 1894, pt. 2, p. 477, fig. 35.Richmond (Waynesville) : Clarksville, etc., Ohio.Plesiotype.?Cat. No. 46158, U.S.N.M.Cuneamya elliptica Miller.Cuneamya elliptica Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 317, pi. 8,figs. 3, 3a.Maysville (McMillan): Cincinnati, Ohio.Cuneamya miamiensis Hall and Whitfield.Cuneamya Miamiensis Hall and Whitfield, Geol. Curv. Ohio Pal., 2, 1875, p. 91,pi. 2, figs. 9, 10.?Miller, N. A. Geol. Pal., 1SS9, p. 474, figs. 807, 808.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 378, fig. 481.Richmond (Waynes\dlle) : Waynes\'ille, etc., Ohio.Cuneamya neglecta (Meek).Sedgwickia (Grammysia?) neglecta Meek, Proc. Acad. Nat. Sci. Philadelphia1872, p. 325; Geol. Surv. Ohio, Pal., 1, 1873, p. 142, pi. 12, fig. 8.?Miller^Cincinnati Quart. Jour. Sci., 1, 1874, p. 220.?Lesley, Geol. Surv. Pennsyl-vania Rep. P 4, 1890, p. 947, figs.Grammysia neglecta Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 91,pi. 2, fig. 11.Cuneamya neglecta Miller, N. A. Geol. Pal., 1SS9, p. 474 (gen. ref.).Richmond (Waynesville): Clinton County, Ohio.Cuneamya oblonga Ulrich.Cuneamya oblonga Ulrich, Geol. Minnesota, 3, pt. 2, 1S94, p. 623, pi. 36, figs. 40-41.Trenton (Galena): Dixon, Illinois.Holotype?Gat. No. 46159, U.S.N.M.Cuneamya parva Miller.Cuneamya parva Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1881, p. 316, pi. 8,figs. 5, 5a.Eden (Southgate): Cincinnati, Ohio.Cuneamya scapha Hall and ^Miitfiold.Cuneamya scapha Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 92, pi. 2,fig. 12.Richmond (Waynesville) : Near Waynesville, Ohio.Cuneamya scapha brevior Foerste.Cuneamya scapha brevior Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914,p. 307, pi. 2, fig. 12.Cincinnatian (Pulaski): Riviere des Hurons, near St. Jean Baptiste, etc., Quebec.Cuneamya sulcodorsata Ulrich. See Saffordia sulcodorsata. 314 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cuneamya truncatula Ulrich.Cuneamya truncatula Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 622, p. 36, fig.39.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 162, pi. 11, fig. 6.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 378, fig. 4S2a.Trenton: Near Wykoff and Pleasant Grove, Minnesota (Prosser); New Jersey.Holotype.?Ca.t. No. 46160, U.S.N.M.Cuneamya vetusta (Hall).Cardiomorpha vetusta Hall, Pal. New York, 1, 1847, p. 154, pi. 34, fig. 8.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 116, text. fig.Cypricardites vetusta Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).Trenton: Middleville, New York.CuPELLACRiNus coRRUGATus Shumard. See IMarsipocrinus corrugatus.CuPELLACRiNus MAGNiFicus Shiimard. See Marsipocrinus magnificus.CuPELLACRiNUS PENTAGONALis Shumard. See Marsipocrinus pentagonaUs.CUPELLACRINUS STELLATus Wachsmuth and Springer. See Mai-sipocrinus pentag-onalis.CuPELL^CRiNiTES Troost. See Marsipocrinus Bather.OuPELL^CRiNiTES BucHii Troost. See Marsipocrinus tennesseensis.CuPELL^CRiNiTES coNicus Troost. See Coccocrinus conicus.CuPELL^CRiNiTES INFLATUS Troost. See Marsipocrinus striatus.CuPELL^CRiNiTEs L.?vis Troost. See Marsipocrinus tennesseensis.CUPELLACRINUS Meek and Worthen. See Marsipocrinus Bather.CuPELLiECRiNUs LAVis Shumard. See Marsipocrinus tennesseensis.CuPELLAOCRiNus Meek and Worthen. See Mai-sipocrinus Bather.CUPULOCRINUS D'Orbigny. Genotype: Scyphocrinus heterocostalis Hall.Scyphocrinus Hall (not Zenker, 1839), Pal. New York, 1, 1847, p. 85.Cupulocrinua D'Orbigny, Prod. Pal. Strat., 1, 1849, p. 23; Cours. Elementairede Pal. et Geol., 2, 1851, p. 144.?Emmons, Amer. Geology, 1, pt. 2, 1855,p. 224.?Zittel, Handb. Pal., 1, 1879, p. 375.?Wachsmuth and Springer,Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 395 (Rev. Pal., pt. 2, p. 221).?Miller, N. A. Geol. Pal., 1889, p. 235.?Bather, Treatise on Zool. (Lankester),pt. 3, 1900, p. 202.?Springer, Mem. Geol. Siu-v. Canada, 15 P, 1911, p. 28;Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 215.Cupulocrinus conjiigans (Billings).Dendrocrinus c(jnjugans Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856,1857, p. 2GS; Geol. Sm-v. Canada, dec. 4, 1859, p. 41, pi. 4, figs, la, b, 2a, b.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 604.Cupulocrinus conjugans Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 37.Dendrocrinus cylindricus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 44, pi. 3,figs. 8a, 8b.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 505.Trenton (Curdsville) : Ottawa and Kirkfield, Ontario; Montreal, Qubec.Cupulocrinus heterocostalis (Hall).Scyphocrinus heterocostalis Hall, Pal. New York, 1, 1847, p. 85, pi. 28, figs.3d, e; 12th Rep. Regents Univ. State New York, 1860, p. 75. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 315Cupulocrinus heterocostalis?Continued.CupulocrinusheterocostaliaD'Orbigny, Prod. Pal. Strat., 1, 1849, p. 23 (gen. ref.). ? Emmons, Amer. Geology, 1, pt. 2, 1855, p. 225.?Springer, Mem. Geol. Surv.Canada, 15 P, 1911, p. 30, fig. 3.Trenton: Middleville, New York.Cupulocrinus humilLs (Billings).Dendrocrinus humilis Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856,1857, p. 270.?Geol. Surv. Canada, dec. 4, 1859, p. 39, pi. 3, fig. 4.Cupulocrinus humilis Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 28, pi. 1,figs. 8, 9; pi. 3, figs. 1-3, p. 29, fig. 2.Trenton (Curdsville) : Ottawa and Kirkfield, Ontario.Cupulocrinus jewetti (Billings).Dendrocrinus Jewettii Billings, Geol. Sur\^ Canada, dec. 4, 1859, p. 43, fig, 15;Trans. Ottawa Field Nat. Club., 1, 1883, p. 51, pi. figs.?Miller, N. A. Geol,Pal., 1889, p. 238, fig. 283.Cupulocrinus jewetti Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 28,pi. 3, figs. 5-7.Trenton (Curds\'ille) : Bay of Quinte, and Kirkfield, Ontario.Cupulocrinus jewetti kentuckiensis Springer.Cupulocrinus jewetti var. kentuckiensis Springer, Mem. Geol. Surv. Canada, 15P,1911, p. 28, pi. 3, figs. 8, 9.Trenton (Curdsville): -Woodford County, Kentucky.Cupulocrinus latibrachiatus (Billings).Dendrocrinus latibrachiatus Billings, Geol. Su^\^ Canada, Rep. Progr. for 1853-1856, 1857, p. 270; Geol. Surv. Canada, dec. 4, 1859, p. 39, pi. 3, figs. Sa-c;Cat. Sil. Fossils Anticosti, Geol. Surv. Canada, 1866, p. 9 (loc. ref.).?Grabaiiand Shimer, N, A. Index Fossils, 2, 1910, p. 505.Cupulocrinus latibrachiatus Springer, Mem. Geol. Surv. Canada, 15P, 1911,p. 29 (gen. ref.).Richmond (Charleton): Charleton Point, Anticosti.Cupulocrinus polydactylus (Shumard).Homocrinus polydactylus Shumard, Trans. Acad. Sci. St. I.oids, 1, 1857, p. 78,pi. 1, figs. 6a, b.Poteriocriuites (Dendrocrinus) polydactylus Meek, Proc. Acad. Nat. Sci. Phila-delphia, 1871, p. 314.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889,p. 740, fig.Poteriocrinus (Dendrocrinus) polydactylus Meek, Geol. Surv. Oluo, Pal., 1, 1873,p*. 22, pi. 3 bis, fig. 9.Dendrocrinus polydactylus Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. In-diana, 1908, p. 719, pi. 3, fig. 4.?Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 83.Cupulocrinus polydactylus Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 29(gen. ref.).Cyathocrinites conglobatus Troost, Proc. Amer. Ass. Adv. Sci., 2, 1850, p. 61(nom. nud).Richmond (Wayne8ville-\Vhitewater) : Richmond, etc., Indiana; Oxford, etc.,Ohio.Plesiotype.?Cat. No. 39950, U.S.N.M. (Troost's type of C. conglobatus).CYATHASPIS Lankester. Genotype: C. banksi Huxley and Salter.Cyathaspis Lankester, Rep. 24th Meeting British Asso. Adv. Sci., I860, p. 100.(See Hay, Bull. U. S. Geol. Surv., 179, for additional refs.)Diplaspis Matthew, Bull. Nat. Hist. Soc. New Brunswick, 6, 1887, p. 69. 316 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cyathaspis acadica (Matthew).Pteraspis acadica Matthew, Canadian Rec. Sci., 2, 1886, pp. 251, 323.Diplaspis acadica Matthew, Trans. Royal Soc. Canada, 6, 1888, p. 49, pi. 4;Amer. Geol., 8, 1891, p. 61.Cyathaspis acadica Hay, Bull. TJ. S. Geol. Surv., 179, 1902.Silurian??: Nerepis Hills, near St. John, New Bruilswick.Cyathaxonia coltjmellata Hall. See Lindstromia? columellata.Cyathaxonia gainesi Davis. See Lindstromia gainesi.Cyathaxonia herzeri Hall. See Lindstromia herzeri.Cyathaxonia wisconsinensis Whitfield. See Lindstromia wisconsinensis.Cyathocrinites Meek and Worthen. See Cyathocrinus Miller.Cyathocrinites conglobatus Troost. See Cupulocrinus polydactylus.Cyathocrinites pyripormis Hall. See Ichthyocrinus Isevis.Cyathocrinites sculpttts Troost. See Chirocrinus angulatus.Cyathocrinites Tennessee^ Troost. See Cyathocrinus brittsi.CYATHOCRINUS Miller. Genotype: C. planus Miller.Cyathocrinus Miller, Nat. Hist. Crin., 1821, p. 85.?Agassiz, Ann. Nat. Hist., 1,1838, p. 447.?Koninck, Desc.Animaux Fossiles, Leige, p.48.?McCoy, Syn.Char. Foss. Ireland, 1844, p. 178.?Austin and Austin, Mon. Recent andFossil Crin., 1845, p. 58, fig. 65 (1846).?D'Orbigny, Prodr. de Pal., 1, 1849,pp. 46, 103.?King, Mon. Permian Foss. England, Pal. Soc, 1850, p. 50.?McCoy, British Pal. Ptocks Foss., 1854, p. 76.?Koninck and Le Hon, Recher.Crin. Terr. Carb. Belgique (Mem. L'Acad. Royale Sci., 28), 1854, p. 79, fig.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 317.?Hall, Rep. Geol. Surv. Iowa,1, pt. 2, 1858, pp. 622, 623, fig. 98.?"White, Boston Jour. Nat. Hist., 7, 1863,pp. 493, 496.?Meek and Worthen, Geol. Surv. Illinois, 2, 1866, p. 175; Proc.Acad. Nat. Sci. Philadelphia, 1868, p. 324; Canadian Nat., n. s., 4, 1869, p.436; Amer. Jour. Sci. and Arts, 2d ser., 48, 1869, p. 25.?Billings, ibid., p.73, footnote.?Thomson, Proc. Royal Soc. Edinburgh, 7, 1871, p. 416. ? Salter, Cat. Camb. Sil. Foss., 1873, p. 123.?Billings, Pal. Foss., Geol. Surv.Canada, 2, pt. 1, 1874, p. 94, footnote.?Wachsmuth, Amer. Jour. Sci., 3d ser.,14, 1877, p. 183; Ann. Mag. Nat. Hist., 5th ser., 1, 1878, p. 455.?Angelin,Icon. Crin., 1878, p. 22.?Wachsmuth and Springer, Proc. Acad. Nat. Sci.Philadelphia, 1878, p. 256; ibid, 1879, p. 302 (Rev. Pal., pt. 1, p. 79); ibid.,1883, p. 376, fig. 7; ibid., 1887, p. 101; ibid., 1890, p. 351.?Zittel, Handb.Pal., 1, 1879, p. 351.?Waagen, Mem. Geol. Surv. India, Pal. Indica, 13thser., 1, 1885, p. 822.?Miller, N. A. Geol. Pal., 1889, p. 235.?Bather, Ann.Mag. Nat. Hist., 6th ser., 5, 1890, p. 324, pi. 14, fig. 20; pi. 15, fig. 3; ibid.,9, 1802, p. 202; Kongl. Sv.Vet.Akad. Ilandl., 25, No. 2, 1893, pp. 126, 127,fig. 18.?Springer, Amer. Geol., 26, 1900, p. 133.?Wachsmuth, Zittel-East-man Textb. Pal., 1, 1900, p. 156.?Bather, Amer. Geol., 26, 1900, p. 308;Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 173, fig. 89.?Weller,Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 61, fig. 33.?Bather,Geol. Mag., dec. 4, 6, 1899, p. 35, fig. 15.?Grabau and Sliimer, N. A. IndexFossils, 2, 1910, p. 506.Anthocrinus Miller, Ann. Mag. Nat. Hist., 2d ser., 13, 1854, p. 255.?Pictet, Traitede Pal., 2d ed., 4, 1857, p. 312 (Genotype: A. loveni Miller). BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 317CTATHOCRINUS?Continued.Cyathocrinites Meek and Worthen, Proc. Acad. Nat. Sci., Philadelphia, 1868,p. 336; Geol. Snrv. Illinois, 5, 1874, p. 400,?Meek, Amer. Jour. Sci. and Arts,3d ser., 7, 1874, p. 369.Cyathocrlnus? a^mulus Hall.Cyathocrinus (Poteriocrinus) semulus Hall, 11th Ann. Rep. Indiana Dep. Geol.Nat. Hist., 1882, p. 266; Trans. Albany Inst., 10, 1883, p. 66 (prelim, notice,1879, p. 10.).Homocrinus? semulus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel-phia, 1886, p. 158 (Rev. Pal., pt. 3, sec. 2, p. 234).Niagarau (Waldron): Waldron, Indiana.Cyathocrinus? alternatus Hall. See Dendrocrinus altematus.Cyathocrinus angulatus Wachsmuth and Springer. See Palajocrii us angulatus.Cyathocrinus benedicti Miller.Cyathocrinus benedicti Miller, 17th Ann. Rep. Dep. Geol. Nat. Res., Indiana,1892, pi. 658, p. 9. fig. 7 (adv. sheets, 1891, p. 48).Niagaran (Waldron): Harts\-ille, Indiana.Cyathocrinus brittsi Miller and Gurley.Cyathocrinites tennesseese Troost, Proc. Amer. Assoc. Adv. Sci., 2, 1850 (nom.nud.).Cyathocrinus tennesseese Miller, N. A. Geol. Pal., 1889, p. 237.Cyathocrinus brittsi Miller and Gurley, Bull. IlHnois State Miis. Nat. Hist., 7,1895, p. 70, pi. 4, figs. 35, 36.?Wood, Bull. U. S. Nat, Mus., 64, 1909, p. 81,pi. 15, figs. 2, 3.Niagaran (Brownsport) : Decatur County, Tennessee.(?Burlington: Sedalia, Missouri).Observation.?Although recorded from the Burlington, the type of C. brittsi isprobably from the Niagaran of West Tennessee.Plesiotype.?Cat. No. 39948, U.S.N.M. (Troost's type of C. tennesseea?).Cyathocrinus cora Hall. See Crotalocrinus cora.Cyathocrinus fasciatus Hall. See Macrostylocrinus fasciatus.Cyathocrinus globosus (Troost).Cyathocrinites globosus Troost, Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom,nud.).Cyathocrinus globosus Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 82, pi. 5, figs. 17, 18.Niagaran (Brownsport): Decatur County, Tennessee.Cyathocrinus nucleus Hall. See Botryocrinus nucleus.Cyathocrinus? oralis Rowley,Cyathocrinus? ovalis Rowley, Amer. Geol., 34, 1904, p. 271, pi. 16, figs. 13-16.Niagaran (Bainbridge) : Near St. Marys, Ste. Genevieve County, Missouri.Cyathocrinus pisiformis Whitfield. See Lecanocrinus pisiformis.Cyathocrinus polyxo Hall. See Botryocrinus polyxo.Cyathocrinus pulchellus Wachsmuth and Springer. See Pala^ocrinus pulchellus.Cyathocrinus pusillus Hall. See Lecanocrinus pusillus.Cyathocrinus pyriforjiis Lesley. See Ichthyocrinus loevis. 318 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cyathocrinus rhombiferus Wachsmuth and Springer. See Palseocrinus rhom-biferus.Cyathocrinus sculptus Wachsmuth and Springer. See Chirocrinus angulatus.Cyathocrinus striatus Wachsmuth and Springer. See Palseocrinua striatus.Cyathocrinus Tennessee^ Miller. See Cyathocrinus brittsi.Cyathocrinus turbinatus WeUer.Cyathocrinus turbinatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 1, 1900, p. 65, pi. 14, fig. 13.Niagaran (Racine) : Chicago, Illinois.Cyathocrinus vanhornei Miller. See Crotalocrinus vanhornei.Cyathocrinus waldronensis Miller and Dyer. See Dimerocrinus waldronensis.Cyathocrinus waukoma Hall. See Lecanocrinus waukoma.Cyathodictya Hall and Clarke. See Cyathophycus Walcott.CTATHOPHYCUS Walcott. Genotype: C. reticulatus Walcott.Cyathophycus, Walcott, Trans. Albany Inst., 10, 1883, p. 18 (adv. sheets, 1879).? "^Tiitfield, Bull. Amer. Mus. Nat. Hist., 1, 1881, p. 15.?Hall, 35th Bep. NewYork State Mus. Nat. Hist., 1884, p. 4G6.?Dawson, Canadian Ilec. Sci., 3,1888, pp. 58, 67, footnote.?Miller, N. A. Geol. Pal., 1889, p. 158.?James,J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 63.?Rauff, Palaeon-tographica, 40, 1894, p. 250.?James, Amer. Nat., 29, 1895, p. 542, fig. 6.Cyathospongia Dawson, Canadian Rec. Sci., 3, 1888, p. 68, footnote.Cyathospongia (Cyathophycus) Dawson and Ilinde, Trans. Royal Soc. Canada, 7,sec. 4, 1890, p. 44.Cyathodictya (new name for Cyathophycus), Hall and Clarke, Mem. New YorkState Mus., 2, 1898, p. 24.Cyathophycus quebecense Dawson.Cyathophycus Quebecensis Dawson, Canadian Rec. Sci., 3, 1888, p. 54.?Hinde,ibid., p. 67.?Rauff, Palseontographica, 40, 1894, p. 251.?Dawson, Trans.Royal Soc. Canada, 2d ser., 2, sec. 4, 1896, p. 109, figs. 18, 19.Cyathospongia Quebecensis Dawson and Hinde, Trans. Royal Soc. Canada, 7,sec. 4, 1890, p. 44, figs. 16, 17, pi. 3, fig. 7.Canadian? (Le\'is?): Little Metis, Canada.Cyathophycus reticulatuni Walcott.Cyathophycus reticulatus Walcott, Amer. Jour. Sci. Arts, 3d ser., 22, 1881, p. 395;Trans. Albany Inst., 10, 1883, p. 18, pi. 2, figs. 16, 16a-d.?Hall, 35th Rep.New York State Mus. Nat. Hist., 1884, p. 468, pi. 18, fig. 1.?Dawson, Cana-dian Rec. Sci., 3, 1888, p. 55.?Hinde, ibid., p. 65.?Rauff, Palaeontographica,40, 1894, p. 252.Cyathodictya reticulata Hall and Clarke, Mem. New York State Mus., 2, 1898,p. 24, pi. 1, figs. 1-13; 15th Rep. State Geol. New York for 1895, 1899, p. 764,pi. 1, figs. 1-13.Utica: Holland Patent, Oneida County, New York.Plesiotype.?C&t. No. 25349, U.S.N.M.Cyathophycus siluriana James. See Trichophycus siluriana.Cyathophycus subsphekicus Walcott. See Teganium subsphericus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 319Cyathophycus? tubulate (Ruedemaim).Cyathodictya? tubularis Ruedemann, Bull. New York State Mus., 162, 1912, p. 75)figs. 8-12.Trenton (Cauajoharie): Canajoharie, New York.Cyathophycus(?) walcotti (Rauff).Dictyophytra(?) Walcotti Rauff, Palaeontographica, 40, 1S94, p. 249, pi. 4, fig.12.?Hall and Clarke, Mem. State Mus. New York, 2, 1S98, p. 50.Utica: Holland Patent, Oneida County, New York.Plesiotype.?Q,2it. No. 25348, U.S.N.M.Cyathophylloides thomii Walcott. See Columnaria (Palaeophyllum) thomi.CYATHOPHYLLUM Goldfuss. Genotype: C. csespitosum Goldfuss.Cyathophyllum Goldfuss, Petrefacta, 1826, pp. 54, 244.?Koninck, Desc. Ani-maux Fossiles, Liege, 1842, p. 20.?Dana, Wilkes' U. S. Expl. Exped., 1838-42,7, Zoophytes, 1846, p. 355.?Edwards and Haime, Mon. d. Polyp. Foss. d.Terr. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5, pp. 167, 360).?McCoy, BritishPal. Rocks Foss., 1854, p. 69.?Pictet, Traite de Pal., 2d ed., 4, 1857, p.455.?Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 364.?Goldfuss, Pe-trefacta, 2d ed., pt. 1, 1862, p. 51.?Lindstrom, Geol. Mag., 3, 1866, p. 359.?Koninck, Animaux Foss. Terr. Carb. Belgique (Mem. I'Acad. Royale Sci. deBelgique, 39, p. 46), 1872.?Dybowski, Archiv. f. Naturf. Liv., Ehst. undKurl., 5, 1873, p. 336.?Romiuger, Geol. Surv. Mich., 3, pt. 2, 1876, p. 98.?Zittel, Handb. Pal., 1, 1879, p. 230.?Roemer, Leth. geog., pt. 1, Leth. Pal.,1883, p. 335.?Freeh, Pal. Abh. Dames and Kayser, 3, Heft 3, 1886, p. 53.?Miller, N. A. Geol. Pal., 1889, p. 181.-Sherzer, Amer. Geology, 7, 1891, pp.290-295; Bull. Geol. Soc. Amer., 3, 1892, p. 279.?Koken, Die Leitfossilien,Leipzig, 1896, p. 309.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 727.?Gra-bau. Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 128; 7, 1901, p. 138; Bull. NewYork State Mus., 45, 1901, p. 138.?Zittel-Eastman Textb. Pal., 1, 1900, p.76; ibid., 2d ed., 1913, p. 84.?Lambe, Cont. Canadian Pal., Geol. Surv.Canada, 4, pt. 2, 1901, p. 133.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 2, 1902,p. 87.Cyathophyllum agglomeratum Castelnau. Not recognized.Cyathophyllum agglomeratum Castelnau, Essal Syst. Sil. I'Amerique Septent.,1843, p. 49, pi. 21, fig. 5.Silurian: Manitoulin Islands, Lake Huron.Cyathophyllum ammonis Castelnau. Not recognized,Cyathophyllum ammonis Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843,p. 48, pi. 21, fig. 1.Silurian?: New York.Cyathophyllum anticostlense BilHngs.Cyathophyllum Anticostlense Billings, Pal. Foss., 1, 1865, Geol. Surv. Canada,p. 109 (adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 34 (loc. ref.).?Lambe, Ottawa Nat., 12, 1899, p. 237; Cont. Canadian, Pal.,Geol. Surv. Canada, 4, pt. 2, 1901, p. 134, pi. 10, figs. 5-8.Anticostian (Jupiter River and Chicotte): Southwest Point, etc., Anticosti.Cyathophyllum arborescens Castelnau. Not recognized.Cyathophyllum arborescens Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843,p. 40, pi. 22, fig. 2.Silurian: Northern shore of Lake Huron. 320 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cyathophyllum articulatum (Wahlenberg).Madreporites articulatus Wahlenberg, Nov. Act. Sco. Upsala, 8, 1821, p. 87.Cyathophyllum articulatum Milne-Edwards and Haime, Polyp. Foss. des. Terr.Pal., 1851, p. 377; British Foss. Corals, 1855, p. 282, pi. 67, figs. 1, la.?Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 584.?Lambe, OttawaNat., 12, 1899, p. 219; Cont. Canadian Pal,, Geol. Surv. Canada, 4, pt. 2, 1901,p. 135, pi. 10, figs. 9a, b.Silurian: Gotland and England; "The Forks," Scaumenac River, Isle of Man,Lake Temiscaming, Quebec; Dobbins Bay, Arctic America (Niagaran).Cyathophyllum atlas Castelnau. Not recognized.Cyathophyllum atlas Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p.47, pl. 20, fig. 2.Silurian: Drummond Island, Lake Huron.Cyathophyllum bullulatum Hall.Cyathophyllum bullulatum Hall, 35th Rep. New York State Mus. Nat. Hist.,1884, p. 416.Niagaran?: Perry County, Tennessee.Cyathophyllum caliculare Owen. Not recognized.Cyathophyllum caliculare Owen, Geol. Expl. Iowa, Wisconsin, and Illinois, 2ded., 1844, p. 69, pl. 13, fig. 5.Niagaran: Iowa and Wisconsin.Cyathophyllum calyculum Foerste. See Enterolasma calyculus.Cyathophyllum celator var. daytonensis Foerste. See Zaphrentis celator day-tonensis.Cyathophyllum clarki Swartz.Cyathophyllum clarki Swartz, Maryland Geol. Surv., Low Dev., 1913, p. 201,pl. 19, figs. 5-9.Helderbergian (Keyser): Devils Backbone, near Cumberland; Pinto, etc.,Maryland.Cyathophyllum conicum Castelnau. Not recognized.Cyathophyllum conicum Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843,p. 48, pl. 21, fig. 4.Silurian?: Banks of the Ohio, Illinois.Cyathophyllum coritheum Owen. See Ptychophyllum expansum.Cyathophyllum densiseptatum Foerste.Cyathophyllum densiseptatum Foerste, Bull. Geol. Surv. Kentucky, 7, 1906, p.314, pl. 6, figs. 2a-f.CUnton (Waco): Near Estill Springs, etc., Kentucky.Cyathophyllum dilatatum Castelnau. Not recognized.Cyathophyllum dilatatum Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843,p. 48, pl. 21, fig. 3.Silurian: Banks of Lake Huron.Cyathophyllum distinctum Castelnau. Not recognized.Cyathophyllum distinctum Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843,p. 49, pl. 22, fig. 8.Silurian: Manitoulin Islands, Lake Huron.Cyathophyllum Eriphyle Billings. See Omphyma eriphyle. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 321Cyathophyllum enryone Billingt*.Cyathophyllum Eiiryone Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 110(adv. sheets, 1862); Cat. Sil. Fossils Anticosti, Geol. Surv. Canada, 1866, p.34 (loc. ref.).?Lambe, Cout. Canadian Pal., Geol. Surv. Canada, 4, pt. 2,1901, p. 135, pi. 11, figs. 1, la, b.Anticostian CGun River-Chicotte) : The .Tixmpers, etc., Anticosti.Cyathophyllum facetum Foerste,Cyathophyllum facetus Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 341, nl.O.iig.S.Upper Medinan ( Brassfield) : Near Dayton, and Todds Fork, near Wilniingtou,Ohio.Cyathophyllum flos Davie.Cyathophyllum flos Davis, Kentucky Fossil Corals, Geol. Surv. KentTicky. pt. 2,1885, pi. 78, figs. 11-14; pi. 83, fig. 10.Niagaran (Louisville): Near Louisville, Kentucky.Cyathophyllum goldfussi Castelnau. Not recognized.Cyathophyllum Goldfussii Castelnau, Eesai Syst. Sil. I'Amerique Septent., 1843,p. 47, pi. 21, fig. 2.Siliu-ian(?): Buffalo, New York.Cyathophyllum goliath Castelnau . Not recognized . Cyathophyllum Goliath Castelnau, Eesai Syst. Sil. TAmerique Septent., 1843, p.47, pi. 20, fig. 1.Silurian: Drummond Island, Lake Huron.Cyathophyllum gracile Troost. Not recognized.Cyathophyllum gracile Troost, 5th Geol. Rep. Tennessee. 1840, p. 63.Silurian(?): Perry County, Tennessee.Cyathophyllum hydraulicum Simpson.Cyathophyllum hydraulicum (Simpson MS.) Grabau, Bull, Geol. Soc, Amer.,2, 1900, p. 364, pi. 21, figs, la-d; Bull. New York State Mus., 45, 1901, p. 138,fig. 31; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 138, fig. 31.?Schuchert, Amer.Geol., 31, 1903, p. 163 (loc. occ.).?Grabau, Michigan Geol. Surv., Geol. Ser.1,1909, p. 97, pi. 31, figs. la-d.Cayugan: Erie County (Akron), and Howes Cave, near Schoharie, New York('Manlius'i.Cyathophyllu.m inequ.vi.k Swartz. See Prismatophyllum inequale.Cyathophyllum luterruptum BilUngs.Cyathophyllum intorruptum Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p.109 (adv. sheets 1862).?Lambe, Cent. Canadian Pal., Geol. Surv. Canada,4, pt. 2, 1901, p. 137, pi. 11, figs. 3, 3a, b.Silurian: L'Anse a le Barbe, Baie des Chaleurs. Quebec.Cyathophyllum intertrium Hall.Cj'athophyllum intertrium Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist.,1883, p. 273, pi. 15, figs. 9-U; 85th Rep. New York State Mus. Nat. Hist.,1884, p. 416 (ext. 1882, p. 12).?Lesley, Geol. Surv. Pennsylvania Rep. P. 4,1889, p. 169, figs.Niagaran (Louisville): Louisville, Kentucky.84243??Bull. 02?15 21 322 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cyathophyllum marylandlcum Swartz.Cyathophyllum marylandicum Swartz, Maryland Geol. Surv.. Low. Dev.. 1913,p. 204, pi. 21, figs. 1,2.Helderbergian (Keyser): Keyser, West Virginia.Cyathophyllum micheUni Castelnau. Not recognized.Cyathophyllum Michelini Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843,p. 48, pi. 22, fig. 3.Silurian: Drummond Island, Lake Huron.Cyathophyllum multiplicatum Owen. See Ptychophyllum expansum.Cyathophyllum nymphalk Billings. See Chonophylluiu nymphale.Cyathophyllum paslthea Billings.Cyathophyllum PaBithea Billings, New sp. L. Sil. Fossils, Geol. Surv. Canada,1865, p. 112 (adv. sheets, 1862).?Lambe, Cont. Canadian Pal., Geol. Surv.Canada, 4, pt. 2, 1901, p. 148, pi. 12, figs. 5, a, b.Silurian: L'Anse a la Vieille, Bay of Chaleurs, Quebec.Cyathophyllum paticiradiatum D'Orbigny.Cyathophyllum pauciradiatum D'Orbigny, Prod, de Pal., 1847, p. 47.?Boule andTlievenin, Ann. de Pal., 1, 1906, p. 7, pi. 3, figs. 6, 7.Silurian (?): Falls of the Ohio.Observation.?Although considered a Silurian species and synonymous withAmplexus shumardi, the figures giA'en by Boule and Thevenin refer to aDevonian species of Blothrophyllum.Cyathophyllum pklagicum Billings. See Diplophyllum csespitosum.Cyathophyllum pennanti Billings.Cyathophyllum Pennanti Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p.107 (adv. sheets, 1862).?Lambe, Cont. Canadian Pal., Geol. Surv. Canada,4, pt. 2, 1901, p. 138, pi. 11, figs. 4, a, b.Silurian: L'Anse a Gascon, Bay of Chaleui*s, Quebec.Cyathophyllum pickthorni (Salter).Strephodes Pickthornii Salter, Sutherland's Jour. Voyage in Baflin's Bay, etc.,2, 1852, p. 230, pi. 6, fig. 5.?Lambe, Cruise of the "Arctic" in 1908-9, 1910,p. 480.Cyathophyllum pickthorni ^Miller, N. A. Geol. Pal., 1889, p. 182, (gen. ref.).Niagaran: Cape Riley and Beechey. Griffith's and Comwallis Islands, ArcticAmerica.Cyathophyllum plicatum Goldfuss. Not recognized.Cyathophyllum plicatum Goldfuss, Petrefacta, 1826, p. 54, pi. 15, fig. 12; 2d ed.,1862, pt. 1, p. 51.?Troost, 5th Geol. Rep. Tennessee, 1840, p. 61.?Sherzer,Bull. Geol. Soc. Amer., 3, 1892, p. 254.Silurian? (?Devonian) : Kentucky.Cyathophyllum plicatulum Castelnau. Not recognized.Cyatliophyllum plicatulum Castelnau, Essai Syst. Sil. I'Amerique Septent.,1843, p. 48, pi. 22, fig. 4.Silurian: Dnmimond Island, Lake Huron.Cyathophyllum profundum Coiuud. See Streptelasma (Petraia) profundum. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 323(\v!^t.hophylIum (Oalophylhim) pustulatum Conrad. Not recognized.Oyathophyllum (Calophyllum) pustulatum Conrad, Proc. Acad. Nat. Sci. Phila-delphia, 3, 1846, p. 22, pi. 1, fig. 24.Silurian: Ohio.Cjathophyllum radlcula Rominger.Oyathophyllum radicula Rominger, Geol. Sur\-. Michigan, 3, pt. 2, 1876, p. 109pi. 39, fig. 3.?Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 21885, pi. 86, figs. 1-6.?Swartz, Maryland Geol. Surv., Lom-. Dev., 1913, p202, pi. 19, figs. 12-17.Niagaran: Dnxmmond Island and Point Detour, Michigan; Masonville, IowaLouisville, Kentucky, and vicinity.Helderbergian (probably Keyser): Near Cumberland, Maryland. r.yiithophjdlum rollinii Castelnau. Not recognized.Oyathophyllum Rollinii Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843,p. 49, pi. 22, fig. 5.Silurian: Drummond Island, Lake Huron.Cyathophyllum schucherti Swartz.Cyathophyllum schucherti Swartz, Maryland Geol. Surv., Low. Dev.. 1913, p.203, pi. 20, figs. 5-9.Helderbergian (Keyser): Pinto, Casli Valley, et<-., Marvdand; Hyndman, Peun-sylvama.Cyathophyllum .sedeutarium Foerste.Cyatliopliyllum sedentarium Foerste, Bull. Geol. SurA-. Kentucky, 7, 1906, p.315, pi. 6, figs. 3a-<'.Clinton (Waco): Near Estill Springs, Panola, and Waco, Kentucky.Cyathophyllum SHUMARni Edwards and Haime. See Amplexus shumardi.Cyathophyllum solitarium Billings.Cyathophyllum solitarium Billings, Cat. Sil. Foss. Anticosti, Geol. Siirv. Canada,1866, p. 93.Niagaran: Portage Bay, Manitoulin Islands, Lake Huron.Cyathophyllum striatuhuu Castelnau. Not recognized.Cyathophyllum striatulum Castelnau, Essai Syst. Sil. I'Amerique Septent.,1843, p. 48, pl. 22, fig. 1.Silurian (?): Banks of Lakes Huron and Erie. ( 'yathophyllum TETKAGONUM Quenstedt. See Goniophyllum pyrauiidale.Cyathophyllum thoroldense Lambe.Cyatliophyllum Thoroldense Lambe, Cent. Canadian Pal., Geol. Surv. Canada,4, pt. 2, 1901, p. 147, pl. 11, figs. 5, 5a, b. ?Grabau, Michigan Geol. Surv.,Geol. Ser., 1, 1909, p. 96, pl. 16, fig. 16.Niagaran (Lockport): Thorold and St. Catherines, Ontario.Upper Monroan (Anderdon) : Detroit, Michigan . Cyathophyllum tnrbinatum Owen. Not recognized.Cyathophyllum turbinatum Owen (not Goldfuss), Geol. Expl. Iowa, Wiscon.^inand Illinois, 2d ed., 1844, p. 78, pl. 14, fig. 6.Xiagiu-an : Iowa and Wisconsin . CYATijoi'jn-Li.rM i;N'nATr\f kt mtjlttplh:atum Owen. See Ptychophyllum ?xpan.sum. 324 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cyathophyllum vesiculosum Owen. Not recognized.Oyathophylhim vesiailoeiim Owen, Geol. Expl. lovra, Wisconsin, Illinois, 2ded., 1844, p. 78, pi. 14, fig. 8.Niagaran: Iowa and Wisconsin.Cyathophyllum vicinum Castelnaii . Not recognized.Cyathophyllnm vicinum Castelnaii, Essai Syst. Sil. TAmerique Septent., 1843,p. 48,' pi. 22, fig. 6.yilurian(?): Northern New York.Cyathophyllum wahlenbergi Billings.Cyathophyllum Wahlenbergii Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865.p. 108 (adv. sheets, 1862); Cat. Sil. Foss., Anticosti, Geol. Surv. Canada,1866, p. 34 (loc. ref.).?Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4,pt. 2, 1901, p. 136, pi. 11, figs. 2, 2a, b.Anticostian (Becsie River-Gun IliA^er): East Point, Anticosti.Cyathosponoia Dawson. See Cyathophycus W'alcott.CTATHOSPONGIA Hall. Genotype: C. excrescens Hall.Cyathospongia Hall, 35th Rep. New York State Mus. Nat. Hist. (ext. 1882. p. 15),1884, p. 419.?Miller, N. A. Geol. Pal., 1889, p. 158.Cyathospongia excrescens Hall.Cyathospongia excrescens Hall, 35th Hep. New York State Mu.?. Nat. Hist., 1884(ext. 1882, p. 15), p. 419.Niagai'iUK Falls of the Ohio, and Perry County, Tennessee.Cyathcspongia Quebeoensis Dawson and Hinde. See Cyathophycus quebecensis.Cybele ELLA Pvaymond and Narraway. See Cybeloides ella.Cybele MiHtJS Clarke. See Cybeloides niirus.Cybele puima Kaymond. See Cybeloides primus.Cybele punctata Hall. See Encrinurus ornatus.Cybele valcourensis Itaymond. See Cybeloides primus.Cybele vigilans Hall. See Encrinurus vigilans.Cybele winchelli Clarke. See Cybeloides \vinclielli.CYBELOIDES Sh)com. Genotype: C. ioweneis Slocom.Cybeloides Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 63.Cybeloides ella (Raymond and NaiTaway).Cybele ella Raymond and Narraway, Annals Carnegie Mus., 3, 1906, p. 598, fig. 1.Cybeloides ella Slocom, Field .Afus." Nat. Hist., Geol. Ser., 4, 1913, p. 64.Black River: Petite Chaudiere, near OttaM'a, Ontario.Cybeloides iowensis Slocom.Cybfloides iowen.sis Slocom, I'iold Mus. Xat. Hist., Geol. Ser., 4, 1913, p. 64, pi.16, figs. 1-1.Ivichmond (Maquoketaj: Elgin luid Bloomlield, Iowa.Cybeloides minis (Billings).Encrinurus minis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p, 292, fig. 282.Crj'ptonjnnus minis Vogdes, Mon. Genera Zethue, etc., 1878, p. 34. BllJLlOOhAPillC' LlbX Of GKMlilCA AiSD Slf'liOlJib. 3^6 "ybeloldes mlrus?Continued.Cybele minis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 713.(iiazyan (Quebec?X. P): Table Head, Pistolet Bay, and I'l.rtland Cn-ck,Newfoundland.Cybeloldes primus (Raymond).Glaphtirns primiis Ravmond, Ann. Carnegie Mur., 3, 1905, p. 362, pi. 14, figH.7,8.Cybeloides prima Slocom, Field Mns. Nat. Hist., Geol. Ser., 4, No. 3, 191;], p. (14.Cybele valcourensi.s Raj'mond, Ann. Carnegie Mua., 3, 1905, p. 362, pi. 14, fig. 9.(Vbele prima Raymond and CarraM-ay, Ann. Carnegie Mus., 3, 1906, p. 601. ? Raymond, ibid., 7, 1910, p. 75, pi. 19, fig. 19; 7th Rep. State Geol. Vermont,1910, p. 237, pi. 36, figs. 7-9; pi. 39, fig. 19.Chazyan (Day Point, Crown Point): Yalconr Island, New York.Cybeloides? winch elll (Clarke).T'ybele windielli Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 7'12, fig. 59.Cybeloides? Minchelli Slocom, Field Mus. Nat. Hist., Geol. Ser., 4. 1913, p. 64.I^enton (Prosaer): Fillmore County, Minnesota.Cyolaster Billing.s. See Edrioaater Billings.Cyclexdoceu-^s Grabau and Shimer. See Endoceras Hall.CYOLOCERAS McCoy. Genotype: Orthoceraa annulare Fleming.Cyi'loceras McCoy, Synop. Carb. Foss. Ireland, 1844, p. 10.?Saemann, Palseonto-graphica, 3, 1852, p. 162.~McCoy, British Pal. Rocks Foss., 1854, p. 318.?Barrande, Syst. Sil. Centre Boheme, 2, pt. 3, 1874, p. 770.?Hyatt, Proc.Boston Soc. Nat. Hist., 22, 1884, p. 275; Zittel-Eastman Textb. Pal., 1, 1900,p. 518.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 57.?Hyatt,Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 599.Ileloceras Barrande, Syst. Sil. Centre Boheme, 2, pt. 3, 1874, p. 773.Cycloceras amycus (Hall).Orthoceras amycus Hall, 11th Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 324,pi. 33, figs. 3, 4; Trans. Albany Inst., 10, 1883, p. 74.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 541, figs.Orthoceras (Cycloceras) amycus Foerste, Geol. Sur\% Ohio, Pal., 7, 1893, p. 546,pi. 33, fig. 5.Niagaian (Waldron): Waldion, Indiana; Newsom, Tennessee.Upper Medinan (Brassfield): Dayton, Ohio.Cycloceras crocus (Billings).Orthoceras perannulatum Billings (not Portlock, 1843), Geol. Surv. Canada, Rep.Progr. for 1853-56, 1857, p. 319.Orthoceras Crocus Billings, Cat. Sil. Foss. Anticosti, Geol. Siuv. Canada, 1866,p. 22.Richmond (English Head) and Ciamacliian: West End, etc., Anticosti.("ycloceras inceptum (Foerste).Orthoceras inceptura Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, ]>. 117, i)l.13, figs, la-c; Proc. Boston Soc. Nat. Hist., 24, 1889, p. 286.Orthoceras (Cycloceras) inceptum Foerste, Geol. Surv. Ohio, PaL, 7, 1893, p. 543,pi. 25, figs. la-c.Upper Medinan (Brassfield): Todds Fork near Wilmington and Dayton, Ohio. ,'320 bULLETIiX ^>2, UNITED STATES NATIONAL MU8EUM. < j'cloceras inceptum acceleratum (Foerete).OrlLoceras inceptuiu var. aocclfiratnm Foerste, Gcol. Sun. <)hio, Pal., 7, lS?;i, p.545, pi. 37A, fig. 10.Upper Medinan (Brassfield): Soldiers' Homo, nctir Dayton, Ohio.Cycloceras lesueuri (Clarke).Orthoceras lesueuri Clarke, Geol. Minnesota, 3, ]>t. 2, 1897, p. 785, pi. 53, fiK. 4;pi. 55, figs. 8, 9.Cycloceras lesueuri Grabau and Rhinicr, N. A. Index Fossils, 2, 1910, p. 57, fij:.1256.Black River (Plalteville): Cannon Falls, Minnesota.Cotypes.?CAi. No. 46528, U.S.N.M.Cycloceras nlcolletl (Clarke).Orthoceras nicoUeti Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 784, pi. 55, figs. 1-2.Cycloceras nicolletti Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 58, fig.1258.Black River (Platteville) : Belle Creek, Minnesota.Cycloceras novacarlislense (Foerste).Orthoceras (Cycloceras) novacarlislensis Foerste, Proc. Boston Soc. Nat. Hist., 24,1889, p. 281, pi. 5, fig. 25; pi. 8, fig. 1; Geol. Surv. Ohio, Pal., 7, 1893, p. 545,pi. 30, fig. 25; pi. 33, fig. 1.Upper Medinan (Brassfield): Brown's Quarry, near New Carlisle, Ohio.Cycloceras olorus (Hall).Orthoceras vertebralc Hall (not Schlotheim), Pal. New York, 1, 1847, p. 201, pi.43, figs. 5a-c.?Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p.328.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 819, fig. 608.?Lincklaen,14th Rep. New York State Cab. Nat. Hist., 1861, pi. 3, fig. 4.?Hitchcock,Geol. Vermont, \, 1861, p. 298, fig. 208.?Chamberlin, Geol. Wisconsin, 1,1883, p. 158, fig.Orthoceras olorus Hall in Miller's American Pal. Foss., 1877, p. 245.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 554, fig.?Clarke, Geol. Min-nesota, 3, pt. 2, 1897, p. 788, pi. 55, figs. 3, 5.Cycloceras olorus Grahau and Shimer, N. A. Index Fossils, 2, 1910, p. 57, fig. 1257.Trenton: MiddleAille, etc.. New York; Wykoff, etc., Minnesota (Prosser).Black River (PlatteWlle): Mineral Point and Janes\'ille, Wisconsin; St. Charlesand Holden, Minnesota.Cycloceras olorus ba?Bueuso (Schuchert).Orthoceras olorus var. baffinensis Schuchert, Proc. U. S. Nat. ^^us., 22, 1900, j>.169, pi. 12, figs. 19-22.Mohawkian: Head of Frobisher Bay, Baffin Land.Cotypes.?C-At. No. 28192, U.S.N .M.Cycloceras perrotl (Clarke).Orthoceras porroti Clarke, Cieol. Minnesota, 3, i>t. 2, 1897, j). 78;"), pi. 54, figs. 4, 5.Richmond (Maquoketa): Granger, Minnesota.Cycloceras? rectiannulatum (Hall).OrthoOD HPECIBS. 829Cyclocystoldes huronensis BillmgB.OyclocyetoidoH Hiirononsis lUUiiigs, Pal. Foss., 1, Geul. Sui'v. Canada, 1866, p. 393,fig. 369.?Raymond, Bull. Victoria Mem. Mus., 1, 1913, p. 29, pi. 3. fig. 2.Riclimond: Rabbit Island, LakeHiiron.(!yclocystoide.s lUiuoIsensi.s Miller and Gurley.Oyclocystoides illinoisensis Miller and Giirley, Bull. Illinois State Mus. Nat. Hist.,6, 1895, p. 61, pi. 5, figs. 27, 28.?Savage, Bull. Geol. Sur\'. IllinoL?<, 23, 1913,p. 40, pi. 1, fig. 2.Upper Medinan (Girardeau): Orchard Creek, Alexander County, lUinoi';.Cyclocystoides magnus Miller and Dyer.Oyclocystoides magnus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878,p. 32, pi. 2, figs. 8, 8a.?Miller, Jour. Cincinnati Soc. Nat. Hi-st.. 4, 1881, p. 70,pi. 1, figs. 2, 2a; N. A. Geol. Pal., 1889, p. 237.Cyclocystoides sp. (?C. magnus) Miller and Faber, Jour. Cincinnati Soc. Nat.Hist., 15, 1892, p. 85, pi. 1, figs. 13-15.Richmond (Waynesville) : Near Mon-ow and Wayiiesville, Ohio.?Maysville: Cincinnati, Oliio.Plesiotype.?C&t. No. 40733, U.S.N.M.Cyclocystoides minus Miller and Dyer.Cyclocystoides minus Miller and Dyer, Jour, t'incinnati Soc. Nat. Hist.. 1, 1878,p.33, pi. 2, fig.5.Richmond: Morrow, Ohio.Cyclocystoides mundulus Miller and Dyer.Cyclocysfoides mundulus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1,1878, p. 34, pi. 2, fig. 7.Richmond: Morrow, Ohio.Cyclocystoides nitidus Faber.Cyclocystoides nitidus Faber, Jem". Cincinnati Soc. Nat. Hist., 9, 1886, p. 17, pi. 1,fig. 1.Maysville (Corry^^.lle) : Near Transit, <^hio.Cyclocystoides parvus Miller and Dyer.Cyclocystoides parvus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist. .1, 1878,p. 33, pi. 2, fig. 6.Richmond: Morrow, Ohio.Cyclocystoides saltcri Hall.Cyclocystoides salteri Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p.218, pi. 6, fig. JG (adv. sheets, 1871).?Bather, Treatise on Zool., pt. 3,Echinoderma, London, 1900, p. 211, fig. 8.Trenton: Near Saratoga, New York.CYCLOGNATHUS Linuarsson. Genotype: C. rnicropygus Linnamson.Cyclognathus Linuarsson, Geol. Foren. Stockholm Forh., 2, No. 12, 1875, p. 600. ? Brogger, Die sil. Etagen 2-3, Kristiania, 1882, p. 109.?Zittel, Handb. d. Pal.,2, 1885, p. 596.?Koken, Die Leitfossilien, Leipzig, 1896, p. 19.Cyclognathus rotundifrons Matthew.Cyclognathus rotundifrons Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893,p. 107, pi. 7, figs. 16a, b.C^uiadian (Bretonian?Div. r3d): St. John, New Brun.swirk. 330 BULLETIN 92, U^'1TED 5TATLS SAilv:SAL MUSEUM.rYCLOGRAPTUS Spencer. Genotype: C. rotadentatus Spencer.Cyclograplus Spencer, Proc. Amer. As?oc. Adv. Sci., 31, 1883, p. 365; Bull.Mils. Univ. State Missomi, 1, 1884, p. 42; Trans. Acad. Sci. St. Louis, 4,1884, p. 563, 592.?Miller, X. A. Geol. Pal., 1889, p. 182.?Ruedemann, Mem.New York State Mus., 11, pt. 2, 1908, p. 182.Cyclograptus ro'adentatus Spenctr.Cyclograptus ruiadentatus Spencer, Trand. Acad. Sci. St. Louis, 4, 1884, p. 592,pi. 6, figs. 6, 6a; Bull. Mus. Univ. State Missouri, 1, 1884, No. 1, p. 42, pi.6, figs. 6, 6a.?JkHller, N. A. Geol. Pal., 1889, p. 182, fig. 162.?Gurley, Jour.Geol., 4, 1896, pp. 94, 309.?Ruedemann, Mem. New York State Mus., 11,1908, p. 184, pi. 2, fig. 5, figs. 91, 92.?Bassler, Bull. U. S. Nat. Mus., 65, 1909,pp. 45, 46, figs. 57, .58.Niagaran dolomite: Hamilton, Ontario.CUnton (Rochester): Clinton, New York.Cyclolttes rotuloides Hall. See Palseocyclus rotuloides.CTCLOLITUITES Remele. Genotypo: ('. applanatus Remelo.C"yclolituites Remeles Zeits. d. d. geol. Gesell., 38, 1886, p. 467.?Hyatt, Proc.Amer. Phil. Soc, 32, 1894, p. 505.Cyclolitwites americauus Hyatt.Cyclolituites americanus Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 505.Canadian (Quebec): Gargamelle Cove, Newfoundland.CYCLONEMA Hall. Genotype: Pleiu-otomaria bilix Conrad.Cyclonema Hall, Pal. New York, 2, 1853, p. 89.?Salter, Geol. Surv. Canada,Can. Org. Rem., dec. 1, 1859, pp. 23, 25.?Miller, Cincinnati Quart. Jour.Sci., 1, 1874, p. 319.?Zittel, Handb. Pal., 2, 1882, p. 187.?Nettelroth, Ken-tucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 187.?Miller, N. A. Geol.Pal., 1889, p. 400.?Koken, Neues Jahrb. f. Min., Geol. Pal., Beilage-Band,6, 1889, p. 427.?Koken, Die Leitfossilien, Leipzig, 1896, p. 120, fig. 101.?Llrich and Scofield, Geol. Minne.sota, 3, pt. 2, 1897, p. 1056.?Koken, Bull.Acad. Imp. Sci. St. Petersburg, 7, 1897, p. 191; Neues Jahrb. f. Min., Geol.Pal., 1, 1898, p. 24.?Pilsbry, Zittel-Eastman Textb. Pal., 1, 1900, p. 448.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 949.?Grabauand Shinier, N. A. Index Fossils, 3, 1909, p. 668.?Dall, Zittel-EastmanTextb. Pal., 2d ed., 1913, p. 530.Cyclonema (part) of Hall, Salter and othex-s. See Trochonema Salter.Cyclonema bellulum BiUings.Cyclonema l^ellula Billings, Cat. Sil. Foss. Anticosti, CJeol. Surv. Canada, 1866,p. 55.Anticuslian (Gun River): The Jumpers, Anticosti.Cyclonema bilex Foerste. See Cyclonema daj-tonense.Cyclonema bilex (part) Hall. See Cyclonema mediale.Cyclonema bilex var. conica Miller. See Cyclonema bilix.Cyclonema bilex var. lata Meek. See Cyclonema bilix.Cyclonema blllx (Conrad).Pieurotomaria bilix Conrad, Joiur. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 271,pi. 16, fig. 10.?Hall (part). Pal. New York, 1, 1847, p. 305, pi. 83, figs. 4a-e.?Roger?", Gor.l. Pennsylvania, 2, pt. 2, 1858, p. 820. fig. 620. BIBUOUHAPHIO L18i" 01 UKNEKA AND SPECIES. IJ3iCyclonema bills?Continued.Turbo bilix D'Orbignj^ Prod, de Pal., 1, 1849, p. o (gen. ref.).?Emmons, Aiiier.Geolo}i;y, 1, pt. 2, 1855, p. 158.Cyclonema (Pleuroiomaria) bilix Zittel, Handb. Pal., 2, 1882, p. 188, lig. 234.Cyclouoma bilix Hall, Pal. New York, 2, 1852, p. 89 (geu. ref.); 14th Rep. NewYork State Cab. Xat. llist., 1861, p. 92.?Billings, Geol. Canada, Geol. Surv.Canada, 1863, p. 217, fig. 225.?Hall, 24th Rep. New York State Cab. Nat'Hist., 1872, pi. 8, fig. 3.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 319.?WTiite, 2d Ann. Rep. Indiana Dep. Stat. Geol., 1889, p. 492, pi. 2, figs. 3, 4, 5.?Ulrich, Amer. Geol., 1, 1888, p. 188, footnote.?Lesley, Geol. Surv. Pennsyl-vania, Rep. P 4, 1889, p. 172, fig.?Miller, N. A. Geol. Pal., 1889, p. 400,fig. 663.?Keyes, Missouri Geol. Siuv., 5, 1894, j). 154.?Koken, Bull. Acad.Imp. Sci. St. Petersburg, 7, 1897, p. 191, fig. 34.?Ulrich and Scofield, Geol.Minnesota, 3, pt. 2, 1897, p. 1058, pi. 58, figs. 35-39.Cyclonema bilex Tumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.958, pi. 40, figs. 2-2d.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.668, figs. 925 a, b.Cyclonema bilex lata ^leek, Geol. Smx. Ohio, Pal., 1, 1873, p. 152, pi. 13, figs,5e, 5f.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 320.Cyclonema bilex co;uca Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 320.Richmond (Arnheini-Whitewater): Richmond, etc., Indiana; Ohio; Kentucky;etc.Pl??{otypes.?Cat. Nos. 45763-45765, U.S.N.M. (Ulrich and Scofield).Cyclonema blllx fluctuatuin (James).Cyclonema fluctuata James, Cat. L. Sil. Foss. Cincinnati Group, 1871, p. 8 (nom.uud.); Cincinnati Quart. Jour. Sci., 1, 1874, p. 152.Cyclonema bilix var. lluctiiatum Ulrich and Scofield, Geol. Minnesota, 3, pt. 2,1897, p. 1058, pi. 78, figs. 40-42.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 959, pi. 40, figs. 3-3b.Richmond (Arnheim, Wajniesville) : Warren and Clinton Counties, Ohio; Indiana;Tennessee.Plemotype.?Cat. No. 45767, U.S.N.M.Cyclonema cancellatum Hall. See Strophostylus caiu^ellatus.Cyclonema cinoinnatiense Miller. See Cyclonema Aarlcosum.Cyclonema commune Billings.ryclonema commuuib Billings, Cat. Sil. Fo8s. Anticosti, Geol. Surv. Canada,1866, p. 55.Auticostian (Jupiter River, Chicotte): The Jumpers. Anticosti.Cyclonema cuNhlngl Ruedomann.Cyclonema cushingi Ruedemann, Bull. New York State Mns., 162, 1912, pi. 7,figs. 8-10.Trenton (Snake Hill): Snake Hill, Saratoga County, New York.Cyclonema daytoneuse Foerste.Cyclonema bilex Foerste (not Conrad), Bull. Sci. Lab. Denison Univ., 1, 1885, p.94; Proc. Boston Soc. Nat. Hist., 24, 1889, p. 290, pi. 5, fig. 15; Geol. Surv. Ohio,Pal., 7, p. 551, pi. 26, fig. 15, var. p. 130, fig. 15.Cyclonema daytonensis Foerste, 24th Ann. Rep. Indiana Geol. Nat. Hist. Surv.,1899, p. 77; Jour. Geol., 11, 1903, p. 707.?Savage, Bull. Geol. Surv. Illinois,23, 1913, p. 100, pi. 6, fig. 4; pi. 7, fig. 21.Upper Medinan: Dayton and Todda Fork, Ohio (Brassfield); Thebes, Illinois; andEdgewood, Missouri (Fdgewood). 332 BULLETIN ill!, Ui>31TED STATES .NATIOMAL MUSEUM,Cyclonema decorum Billings.Cyclonema deconi Billings, Cat. Sil. Foes. Anticosti, Geol. Siirv. Canada, ISOG,p. 56.Anticostian (Cbicotte): Southwest Point, Anticosti.Cyclonema elevata Hall. See Strophostylua elevatus.Cyclonema fluctuata James. See Cyclonema bilix fliictuatum.Cyclonema gracile Ulrich.Cyclonema gracile Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1062, ]>1. 82, figs.55-61.Maysville (Mt. Hope): Cincinnati, Ohio, and \'-icinity.Cotypes.?Cat. Now. 45768, 45769, U.S.N.MCyclonema gracile striatulum Ulrich.Cyclonema gracile var. striatulum Ulrich, Cieol. Minnesota, 3, pt. 2, 1897, p. 1062,pi. 82, figs. 59-61 (striatellimi on plate).Maysville (Mt. Hope): Cincinnati, Ohio, and vicinity.Hnlntype.?C&t No. 45770, U.S.N.M.Cyclonema hageri Billings.Cyclonema Hageri Billings, Geol. Canada, Geol. Siu-a-. Canada, 1863, p. 178, fig.169; Pal. Fossils, 1, Geol. Siu-v. Canada, 1863, p. 29, fig. 27 (adv. sheets1862).?Miller, N. A. Geol. Pal., 1889, p. 401, fig. 664.Trenton: Smith's Quarries, Montreal, Quebec.Cyclonema hallianum Salter.Cyclonema Halliana Salter, Geol. Surv". Canada, dec. 1, 1859, p. 26, pi. 6, fig. 1. ? Billmgs, Geol. Canada, Geol. Surv. Canada, 1863, p. 178, fig. 168.?Miller,N. A. Geol. Pal., 1889, p. 401, fig. 665.Black River (Leray): PaUquette's Rapids, Ottawa River, Canada.Cyclonema hiimerosum Ulrich.Cyclonema humerosum Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1061, pi. 78,figs. 43-46.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.960, pi. 40, figs. 5-5c.Maysvdlle (McMillan) and Richmond: Cincinnati, Ohio, and vicinity; Indiana;Kentucky; Tennessee.Cotypes.?Cat. Nos. 45771, 45772, U.S.N.M.Cyclonema humills Billings. See Diaphorostoma humile.Cyclonema Inflatum Uhich.Cyclonema inflatum Ulrich, Geol. Miimesota, 3, pt. 2, 1897, p. 1060, pi. 78, figs.31, 32.Maysville (Fairmount): Cincinnati, Ohio, and \dcinity.Cotypes?Gat. No. 45773, U.S.N.M,Cyclonema (?Holopea) llmatnm Uhich.Cyclonema (?Holopea) liinatum Ilrich, (iool. Minne.sota, :'., pt. 2, 1897, p. 106:*,pi. 82, figs. 62-64.Maysville (Fau-mount): Cincinnati, 0)ii<).Cotypes.?G&t. No. 45774, U.S.N.M.Cyclonema medialo Ulrich.Cyclonema bilex Meek, Geol. Surv. Ohio, Pal., 1, l.s;'',, p. 1.^)1, pi, 13, figs, aa,c, d (not g"). BIBLIOGRAPHIC LIST OF GENEBA AND SPECIES. 338Cyclonema mediate?Continued.Cyclonema mediale, Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1059, pi. 78, fig!=.29, 30.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.960, pi. 40, figs. 4, 4a.?Grabau and Shiiuer, N. A. Index Fossils, 1. 1909,p. 669, fig. 925c, d.Maysville (Fairmount): Cincinnati, Ohio; Kentucky and Indian;;.Cotypes.?Cat. No. 45775, U.S.N.M.(Jyclonema MEDiocRis BiUlngs. See Holopea mediocris.Cyclonema? minor James. Not recognized . Cyclonema? minor James, The Paleontologist, No. 1, 1878, p. 6.Maysville: Cincinnati, Ohio.Cyclonema montrealense Billings.Cyclonema MontreolensLs Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p.30, text fig. 28. (adv. sheets, 1862); Geol. Canada, Cxeol. Surv. Canada, 1863,p. 178, fig. 170.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 186, pi.12, fig. 33.?Ruedemann, Bull. New York State Mus., 162, 1912, p. 110, pi.7, fig. 7.Trenton: Island of Montreal, Canada; Snake Hill, Saratoga County, New York _ (Snake Hill); New Jersey.Ctclokema? normaliaxa Raymond. See Gyronema historicum.Cyclonema? obsoleta Hall. See Holopea obsoleta.(Jyclonema percahinata of authors. See Gyronema percarinatum.Cyclonema percingulatiim Billings.Cyclonema percingulata Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56,1859, p. 304; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 55 (loc.ref.).Anticostian (Jupiter River): Southwest Point, Anticosti.Cyclonema pervetusta Whitfield and Hovey. See Euconia? pervetusta.Cyclonema phsedra Billings.(Jyclonema Phaedra Billiug.'j, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 188.Canadian (Beekmantown) : Near St. Antoine aboA-e Quebec, CanadaCyclonema (?Gyronema) prteciptum Ulrich.Cyclonema (?Gyronema) prteciptum Ulrich, Geol. Minnesota, 3, pt. 2, 1897. pi.78, fig. 26.Stones River (Murfreesboro) : Murfreesboro, Tennessee.Holotype.??&t. No. 46052, U.S.N.M.Cyclonema pyramidatum James.(yclonema pyramidata James, Cat. L. Sil. Fossils Cincinnati Group, 1871, p. 8;Cincinnati Quart. Jour. Sci., 1, 1874, p. 152.?Ulrich and Scofield, Geol.Minnesota, 3, pt. 2, 1897, p. 1061, pi. 78, figs. 33, 34.Mays\dlle (Fainnouiit): Cincinnati, Ohio, and vicinity.Plesiolype.?Cat. No. 45776, U.S.N.M.Cyclonema rug.?;lineata Nettelroth. See Poleumita rugilineata.Cyclonema semicarinata Salter. See Gyronema Heniicarinatum , 334 BULLETIN 92, U^TITED STATES NATIONAL MUSEUM.Cyclonema slmulans Ulrich.Cyclonema simiilans Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1061, pi. 78,fig. 47.Maysville (Corryville): Cincinnati, Ohio.Holotype.?O&t. No. 45777, U.S.N.M.Cyclonema sublaeve Ulrich.Cyclonema sublaeve Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1062, pi. 78, figs.48, 49.?Gi-abau and Shinier, N. A. Index Fossils, 1, 1909, p. 669, fig. 925j.Mayeville (Mt. Hope): Cincinnati, Ohio, and vicinityCotypes.?Oat. No. 45778, U.S.N.M.Cyclonema sulcata Billings. See Poleumita? fsulcata.Cyclonema tennesseense Miller. See Strophostylus tennesseensia.Cyclonema textile Miller. See Strophostylus textilis.Cyclonema thalia Billings.Pleurotomaria Thalia Billings, Geol. Surv. Canada, Rep. Progr. for 1855-56, 1857,p. 303.Cyclonema Thalia Billings, Cat. Sil. Foss. Anticosti, (Jeul. Surv. Canada, 1866,p. 17, fig. 5; p. 55.Richmond (Charleton): Charleton Point, Anticosti.Gamachian (Ellis Bay): Gamache Bay, Anticosti.Cyclonema transversum Ulrich.Cyclonema transversnm Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1062, pi. 82,iigs. 65-67. -Maysvdlle (Fairmount): Covington, Kentucky, and vicinity.Cotypes.?Gat. Nos. 45779, 45780, U.S.N.M.Cyclonema varlans Billings.Cyclonema varians Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,p. 305; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 55 (loc. ref.).Anticostian (Chicotte): Southwest Point, Anticosti.Cyclonema varicosum Hall.Cyclonema varicosa Hall, 14th Rep. New York State Cab. Nat. Hist., 1861, p.91, 110; Desc. N. Sp. Foss. Cincinnati Group, 1871, pi. 4, figs. 1-3; 24thRep. New York State Cab. Nat. Hist., 1872, pi. 8, figs. 1, 2.?Meek, Geol.Surv'. Ohio, 1, 1873, p. 152.?Miller, Cincinnati Quart. Jour. Sci., 1, 1S74,p. 32I.~Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1060, pi. 78,figs. 27, 28.?Hayes and Ulrich, U. S. Geol. Surv. Folio 95, illust. sheet,1903, figs. 28, 29.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 669,fig. 925h-i.?Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, p. 184, fig. 21.Cyclonema ventricosa (in error for varicosa) Hall, 24th Rep. New York State Mus.Nat. Hist., 1870, pi. 8.Cyclonema cincinnatiense Miller, Journ. Cincinnati Soc. Nat. Hist., 5, 1882, p,230, pi. 9, figs. 8, 8a-c.Cyclonema varicosuni-cincinnatense Foerste, Jour. Cincinnati Soc. Nat. Hist.,21, 1914, p. 139, i>l. 1, figs. 12a, b.Trenton: Nashville, etc., Tennessee (Catheys); Kentucky; Ohio; Minnesota;Virginia.Plesiotypes.?G?t. Nos. 45781, 45782, U.S.N.MOyclo.vema vark^osum-cincinnatense Foerste. See Cvcloneraa N-aricosnm. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 335Ctclonema ventricosum Hall. See Cyclonema varicosum and Strophostylue ven-tricosus.Cyclopora Jamesii Front. See Escharopora ]>avonia, *'ycloporina Simpson. See Semicosciniiim Prout.CTCLORA Hall. Genotype: C. minuta Hall.CydoraHall, Amer. Jour. Sci. Arts, 48, 1845, p. 294.?Meek, Geol. Smv. Ohio, Pal.,1, 1873, p. 153.?Miller, Cincinnati Quart. Jour. Sci., 1874, p. 312.?Zittel,Handb. Pal., 2, 1882, p. 193.? Miller, N. A. Geol. Pal., 1889, p. 401.?Cum-ings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 949.?Grabau andShimer, N. A. Index Fossils, 1, 1909, p. 673.C.vclora alta Foerste.Cyclora alta P^oerste, Bull. Sci. Lab. Deuison Univ., 1, 1855, p. 96, pi. 14 figs.17a, b; Geol. Surv. Ohio, Pal., 7, 1893, p. 552, pi. 26, figs. 17a, b.Upper Medinau (Brassfield): Huffman's Quarry, near Dayton, Ohio.Cyclora depressa Ulricb.Cyclora depressa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 13, pi. 7,figs. 9, 9a.Maj'sville: Hamilton, et<,'., Ohio; Indiana; Kentucky.roti/pt!i.?Ca,t. No. 45685, U.S.N.M.Cyclora hoffmauni Miller.Cyclora Hoffmanni Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 313, fig. 33;N. A. Geol. Pal., 1889, p. 401, fig. 666.Mohawkian and Cincinnatian: Cincinnati, Ohio, and many other Americanlocalities.Cyclora minuta Hall.Cyclora minuta, Hall, Amer. Jour Sci. Arts, 48, 1845, p. 294.?Meek, Geol. Surv.Ohio, Pal., 1, 1873, p. 152, pi. 13, figs. 7a-e.?Miller, Cincinnati Quart. Jour.Sci., 1, 1874, p. 312.?\\Tiiteaves, Pal. Fossils, Geol. Surv. Canada, 3, pt. 2,1895, p. 124 (loc. occ.).?Miller, Amer. Geol., 17, 1896, pp. 74-76.?Cumings,32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 961, pi. 40, figs.6-6c.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 673, fig. 932.Holopea nana Meek, Proc. Acad. Nat. Sci. Philadelphia, 1871, p. 172.Mohawkian and Cincinnatian: Cincijinati, Ohio, and numerous other Americanlocalities.Cyclora parvula (Hall).Tiu-bo? parvulus Hall, Amer. Jour Sci. Arts, 48, 1845, p. 294.Cyclora? parvula Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 154.?Miller, CincinnatiQuart. Jour. Sci., 1, 1874, p. 313.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 962.Mohawkian and Cincinnatian: Cincinnati, Ohio, and numerous other Americanlocalities.Cyclora pulcella Miller.Cyclora pulcella Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 231, pi. 9,figs. 9, 9a-b.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 962, pi. 40, figs. 7-7b.Richmond (Amheim, Waynesville) : Versailles, Indiana; Ohio; etc. 336 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CTCLOSPIRA Hall and Clarke, Genotype: Orthis bisiilcata Emmons.Cyclospira Hall and Clarke, Pal. New York, 8, pt.' 2, 1893, p. 146.?Winchell andSchuchert, Geol. Minnesota, 3, 1893, p. 4G9.?Hall and Clai-ke, 13th Ann.Rep. New York State Geol., 1895, p. 808.?Miller, N. A. Geol. Pal., 2d App.,1897, p. 760.?Grabau and Sliimer, N. A. Index Fossils, 1, 1907, p. 309.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 410.Cyclospira bisulcata (Emmons).Orthis bisulcata Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 396, hg. 4.Atrj'pa bisulcata Hall, Pal. New York, 1, 1847, p. 139, pi. 33, fig. 3.?Emmou.sAmer. Geology, 1, pt. 2, 1855, p. 190, pi. 10, figs. 3a-e.Genus? bisulcata Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. G5.Camarella bisulcata Miller, Amer. Pal. Foss., 1877, p. 107.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 3, figs.Camarella owatonnensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892. ]>.328, pi. 4, figs. 1-3.Rhynchonella bisulcata Safford, Geol. Tennessee, 1869, p. 275, figs. 7, 14.Cyclospira bisulcata? Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 470,pi. 34, figs. 49-54.Cyclospira bisulcata Hall and Claike, Pal. New York, 8, pt. 2, 1893, p. 147, figs.133-136, pi. 54, figs. 38-40.?AMuteaves, Pal. Foss., 3, pt. 3, 1897, p. 180.-Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 309, figs. 386d-h.Trenton: Adams, Jefferson County, New York; Ottawa, Ontario; Cannon Falls,etc., Minnesota; Lake Winnipeg, Manitoba.Cyclo8plra( ?) sparsiplica Foerstc.Cyclospira(?) sparsiplica Foerste, Geol. Ohio, 7, J895, ]>. 593, pi. 37A, fig, 18.Upper Medinan (Brassfield): Dayton, Ohio.Cyclostoma? pervetusta Conrad. See Euconia(?) pervetusta.CTCLOSTOMICERAS Hyatt. Genotype: Gomphoceras cassinense WTiitfield.Cyclostomiceras Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 530.?Ruedemann,Bull. New York State Mus., 90, 1906, p. 500.?Grabau and Shimer, N. A. In-dex Fossils, 2, 1910, p. 119.?Hyatt, Zittel-Eastman Textb. Pal., 2d ed.,1913, p. 611.C.rcIo8tomlceras(?) breylcorne (Hall).Cyrtoceras brevicorne Hall, 20th Rep. New York. State Cab. Nat. Hist., 1868, p.356, pi. 18 (8), figs. 8, 9; rev. ed., 1870, p. 407, pi. 18, figs. 8. 9; pi. 25, fig. 14.?Chamberlin, Geol. Wisconsin, 1, 1883, p, 194, fig.Cyrtoceras brevicorne Clarke and Ruedemann, Mem. New York State Mus., 5,1903, p. 89, pi. 13, figs. 11, 12.Cyclostomicera8(?) brevicorne Grabau and Shimer, N. A, Index Fossils, 3, 1910,p, 121, fig. 1361.Niagaran: Racine, Wisconsin (Racine and Guelph); Shelby and Rochester, NewYork (Guelph).Cyclostomiceras cassinense (Whitfield).Gomphoceras cassinense Wliitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 322,pi. 29, figs. 1-3.?Seely, Rep. State Geol. Vermont, 7, 1910, pi. 56, fig. 4.Cyclostomiceras cassinense Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, j). 530. ? Ruedemann, Bull. New York State Mus., 90, 1906, p. 501, fig, 56; pi. 37,figs. 1-3; pi. 38, figs. 5, 6.?Grabau and Shimer, N. A. Index Foasils, 2, 1910,p, 120, fig. 1357. 'Canadian (Beekraantown ) : Fort Cassin, Vermont. BIBLIOGRAPHIC LIST OF GENEKA A^'D SPECIES. 337Cyclostoinlceras minimum (Whiiiield).Gomphoceras minimum Whitfield, Bull. Amer. Mus. Nat. Hiat., 1, 1886, p. 321,pi. 27, figs. 3-5.Oyclo.slomiceras minimum Ruedemauu, Bull. New York State Mua., 90, 1906,p. 502, pi. 35, figs. 5-6, fig. 57.Canadian (Beekmanto-wu) : Fort Cas-sin, Vermont.Cyclostomlceras orodes (Billings).t'yrloceraH Orodes Billings, Pal. Foss., 1, Geol. Sun'. Canada (adv. sheets, 1862),1865, p. 162.?\Miiteave9, Pal. Fosa., Geol. Surv. Canada, 3, pt. 2, 1895, p.103, pi. 14, figs. 7, 7a, 8a, b, 9.?Clarke and Ruedemann, Mem. New YorkState Mus., 5, 1903, p. 88, pi. 15, fig. 3-11.Cyrtoceras (Cyclostomiceraa) orodes Grabau, Mchigan, Geol. Siurv., Geol. Ser., 1,1909, p. 197, pi. 28, figs. 6, 7; pi. 29, figs. 2, 3.Cyclostomiceraa orodes Grabau and Shimer, N. A. Index Fosails, 2, 1910, p. 120,fig. 1358-60.Niagaran (Guelph): New Hope, Ontario.Monroan (Amherstburg and Raisin River) : Detroit River region.Cylicocrixus Miller. See Barrandeocrinus Angelin.CYLINDROC(ELIA Ulrich. Genotype: C. endoceroidea Ubich.Cylindrocoelia Ulrich, Amer. Geol., 3, 1889, pp. 235, 245.?MUer, N. A. Geol.Pal., 1889, p. 158.?James, Jour. Cincinnati Soc. Nat. Hist., 14, 1891, p. 56.?Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 77.Cylludrocoella covlngtonensis Ulrich.Cylindrocoilia covingtonensis Ulrich, Amer. Geol., 3, 1889, p. 247.?Jamea, J. F.,Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 66.Maysville (Fairmount): Covington, Kentucky.(otypes.?Cat. No. 46550, U.S.N.M.Cyliudrocoelia endoceroidea Ulrich.Cylindrocojlia endoceroidea Ulrich, Amer. Geol., 3, 1889, p. 246, figs. 9, 10.Black River (Lowville): High Bridge, Kentucky.Cyiindrocoella minnesotensis Uhich.Cylindroccelia minnesotensis Ulrich, Amer. Geol., 3, 1889, p. 248.?^^'inchell andSchuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 78, pi. G, figs. 1-3.Black River (Decorah): Minneapolis, St. Paul, and Fountain, Minnesota.rotypcs.?C&t. Nos. 46551, 46552, U.S.N.M.Cyiindrocoella minor Ulrich.Cylindroccelia minor Ulrich, Amer. Geol., 3, 1889, p. 248.Trenton: Harrodsburg Junction, Kentucky.CTLINDROHELIUM Grabau. Genotype: C. profuudum Grabau.Cyliudrohelium Grabau, Geol, Surv. Michigan, Geol. Ser., 1, 1909, p. 102.Cyllndrohelliim heliophylloldes Grabau.Cylindrohelium heliophylloides Grabau, Geol. Surv. Michigan, Geol. Ser., 1,1909, p. 103, pi. 10, fig. 7.Upper Monroan (Lucas) : Salt shaft, Detroit, Michigan.Clyllndroliellum profundum Grabau.Cylindrohelium profundum Grabau, Geol. Surv. Miclugan, Geol. Ser., 1, 1909,p. 102, pi. 11, figs. 4-6, 7.Upper Monroan (Lucas): Salt shaft, Detroit, Michigan; near Sylvania. Ohio.Silurian: North Fork of Saskatchewan River. Canada.84243"?Bull. i>2?15 22 338 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.CYMATONOTA Ulrich. Genotype: C. typicalis Uliich.Orthonota (Jonrad (part), New York Ann. Geol. Rep., 1841, p. 51.?Hall, 1847,Pal. New York, 1, 1841, p. 299.Orthodesma Hall and Whitfield (part), Pal. OMo, 2, 1875, p. 93.Chsenodomus Ulrich, Geol. Minnesota, 3, pt. 2, 1893, p. 477 (not defined j.Cymatonota Ulrich, Geol. Surv. Oliio, 7, 1893, p. 661.?Cumings, 32d Ann. Rep.Dep. Geol. Xat. Res. Indiana, 1908, p. 980.Cyinatouota atteuuata UMch. .C\matouota attenuata Ulrich, Geol. Surv. Ohio, 7, 1893, p. 0G4, pi. 55, fig.s. 12-14.Richmond (Waynesville) ; Waynesvillo, Ohio.Cotypes.~Qc\i. No. 46164, U.S.N.M.Cymatonota constricta Ulrich.Cymatonota constricta Ulrich, Geol. Surv. Ohio, 7, 1893, p. 664, pi. 55, figs. 10, 11.Richmond (Waynesville): Butler County, Ohio, and Versailles, Indiana.Holotype.?Gait. No. 46165, U.S.N.M.Cyraatouota cyliudrica (Miller and Faber).Orthodesma cylindricum Miller and Faber, Jour. Cincinnati Soc. Nat. Hist.,17, 1894, p. 22, pi. 1, figs. 1-^.Richmond (Waynesville): Warren County, Ohio.Cyinatouota lenior Foerste.Cymatonota lenior Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 290, pi.1, fig. 9.Cincinnatian (Pulaski): Riviere des Hurons, near St. Jean Baptiste, Quebec.Cymatonota parallela (Hall).Orthonota parallela Hall, Pal. New York, 1, 1847, p. 299, pi. 82, fig. 7 (not 7a,b, d).??Emmons, Amer. Geology, 1, pt. 2, 1855, p. 173, pi. 13, fig. 14.?(?)Billings, Geol. Canada, Geol. Surv. Canada, 1803, p. 216, fig. 224.?(?)Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 221.(?)Orthodesma parallela Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 96.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 565, figs.?Cumings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, pi. 47, fig. 5.Cincinnatian: Pulaski, Lorraine, etc., New York (Rilaski); Cincinnati, Ohio(Maysville).Cymatonota pholadis (Conrad).Pterinca pholadis Conrad, Amer. Geol. Rep. New York, 1838, p. 118.Orthonota pholadis Hall, Pal. New York, I, 1847, p. 299, pi. 82, fig. 6.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 174.?Miller, Cincinnati Quart. Jour. Sci.,], 1874, p. 222.Cymatonota pholadis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 291, pi. 3,fig. 7.Cincinnatian: Pulaski, etc., New York (Pulaski); (?)Cincinnati, Ohio (Mays-ville).Cymatonota productlfrons Ulrich.Cymatonota productlfrons Ulrich, Geol. Surv. Ohio, 7, 1893, }>. 665, pi. 55, figs.17, 18.Orthodesma productifrons Miller, N. A. Geol. Pal., 2d App., 1897, p. 783 (gen.ref.).Eden (Economy): Covington, Kentucky.Holntj/pe.?Cat. No. 46166, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 339('yuialuiioia recta Ulrich.Cymatoiiota recta Ulrich, Gcol. Surv. Ohio, 7, 1893, p. G02, pi. 55, figs. 8, 9.Maysville (McMilhvn): Cincimiuti, Ohio, and -viciuity.r'ofi/pcs.?C-dt. Nos. 46167, 46178, U.S.N.M.Cyiiialouota seiulstriata Ulrich.Cymatouota semi.striata Ulrich, Geol. Surv. Ohio, 7, 1893, }). 663, pi. 55, figs. 0, 7.Orthodesma seinistriatum Miller, N. A. Geol. Pal., 2d Apj)., 1897, p. 784 (gen. ref.).llichinoud (Waynesville): Clarksville and WaynesWlle, Oliio.IIoIo(>/pc.?Cut'. No. 46169, U.S.N.M.Cymatouota typicalis Ulrich.( 'lueuodoraus typicalin Ulrich, Geol. ^linnesota, 3, pt. 2, 1894, p. 477, fig. 4 (not de-fined).( lymatonota typiciilis liliich, Geol. Surv. Ohio, 7, 1893, p. 062, jjl. 55, figs. 1-5. ? Ciimings, 32d Ann. Rep. Dep. Geol. Nat. lies. Indiana, 1908, p. 998, pi. 45,figs. 1-lc.llichmond (Waynesville): Wajniesville, etc., Ohio; southeastern Indiana.Cotypes.?(M. No. 46170, U.S.N.M.CYPHASPIS Burmeister. Genotype: Phacops ceratophthalnia Goldfuss.<'yiiluif;i)ifti Burmeister, Org. Tiil., Hay Soc, 1840, p. 98.?Ilawle and Corda, Abii.d. k. bohmischen Gesell. d. Wiss., 5 (extract), 1847, p. 80, pi. 4, fig. 40.Barrande, Syst. Sil. du Centre Boheme, 1, 1852, p. 479.?Pictet, Traite dePal., 2d ed., 2, 1854, p. 497.?Nieszkowski, Archiv. f. Naturk. Liv.-Ehst-u.Kurl., 1, 1857, p. 662.?Alth, Abhandl. der k.-k. Geol. Ileichsanstalt, 7,Heft 1, 1874, p. 61.?(Ehlert, Bull. Soc. d'Etudes Sci. d'Angers, 1885, p. 3.?Zittel, Ilandb. Pal., 2, Municli, 1885, p. 624.?Hall aiid Ohu-ke, Pal. New York,7, 1888, p. 47, 48, fig.?Clarke, Jour. Morph., 2, 1888, p. 254.?Whidborne, Mon!Dev. Fauna South England, 1, Pal. Soc. 1889, p. 17.~Miller, N. A. Geol. Pal.,1889, p. 541.?Kokeu, Die Leitfo-ssilien, Leipzig, 1896, p. 24, fig. 15, fig. 5.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 317.?Lindslrom, Koiigl.Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 20.?Grabau and Shimei; N. A.Index Fossils, 2, 1908, p. 302. ?Raymond, Zittel-Eastman Textb. Pal., 1913,p. 721.Cyphaspis ai'kansanus Van Ingen.Cypha.spis arkansanus Van Ingen, School of Mines Quart., 23, 1901, p. 35 (nom.nud.).Niagaran (St. Clair): St. Clair Spring, Independence County, Arkansas.(YPHAsi'is BUEViMARGiNATUs Walcott. See Haploconus brevimarginatue.Cyphaspis chrlstyl Hall.Cypha-spiH christyi Hall, Trans. Albany Inst., 4, 1864, p. 220; 28th Rep. New YorkSt. Mus. Nat. Hist., doc. ed., 1877, pi. 32, figs. 5-7; Mus. ed., 1879, p. 188, jd.32, figs. 5-7.?\\1iite, 2d Ann. Rep. Dep. State Geol., Indiana, 1880, p. 498,pi. 3, fig. 9.?Hall, 11th Rep. Dep. Geol. Nat. Hist. Indiana, 1882, p. 333,pi. 34, figs. 5-7.--Miller, N. A. Geol. Pal., 1889, p. 541, fig. 990.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 174, figs.Niagaran (Waldron): ^\'aldron, Indiana; Newsom, Tennessee.Cyphaspis clintonensis Foer.ste. See Cyphaspis clintoni.Cyphaspis cUntonl Foerste.Proctus Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 92, pi. 8, fig. 5.Cyphaspis clintoni Foerste, Proc. Bost. Soc. Nat. Hist., 24, 1890, p. 272, pi. Gfig. 22. 340 BULLF/riX !12, UNITED STATES NATIONAL MUSEUM.Cyphaspis cilntonl?Coutiuued.CyphasiJts clintouensis Foerste, Geol. Surv. Ohio, 7, 1893, p. 624, pi. 27, fig. 'kpi. 31, fig. 22.Upper Medinan (Brassfield): Dayton, Ohio; Cumberland Gap, Tennessee.(;ypli?s[?ls(?) froblsherl Emerson.('\-phaspis? frobisheri Emerson, Narrative ilall'-s 2d Arctic Exped., U. S. NavyDep., 1879, p. 583, fig. 11.lUchmond (Utica?): Frobisher Bay, Baffin Land.Phisiot!/pr.?Ca.t. No. 60627, U.S.N.M. ( YrHASPis (jAJ.ENENSis Clarke. See Haploconus galenensis.CyphafspiN jjiiardeauensis Shumard.Cyphaspis girardeauensis Shumard, 1st and 2d Aim. Rep. Geol. Surv. Missouri,pt. 2, 1855, p. 197, pi. B, fig. 11 a, b.?Emmons, Man. Geol., 1860, p. 150,fig. 2.?Keyes, Missouri Geol. Surv., 4, 1895, p. 228, pi. 32, fig. 2.?Savage,Bull. Geol. Surv. Illinois, 23, 1913, p. 58, pi. 2, fig. 13.?Miller, N. A. Geol.Pal., 1889, p. 541, fig. 991.Calymene spinifera Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 277.Upper Medinan (Girardeau): Near Cape Girardeau, Missoiu-i.Ilolotypc.?C&t. No. 57102, U.S.N.M.Cyphaspis hudsonica Ruedemann. See Proetus undulostriatus.Cyphaspis iutormedia Welkr.Cyphaspis intermedia Weller, Bull. Chicago Acad. Sci., 4, pt. 2, 1907, p. 231, pi.20, figs. 3-5.?Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 121, pi. 7,fig. 26.Upper Medinan: Near Chaunahou, Will County (Channahon), and Thebes, Illi-nois; Edgewood, Missouri (Edgewood).Cyphaspis matiitiua Paiedemaun.(y))haspis matutina Ruedemann, Bull. New York State Mus., 49, 1901, p. 62,pi. 4, figs. 5-7.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 302.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.Cyphaspis spinulocervix Van Ingen.Cyphaspis spinulocervix Van Ingen, SSur\.. I,pt. 1, 1900, p. 76, pi. 1, tig8. 1-4. .\'i;i{;aiaii (Racine): Bridgeport, Illinois.Cyphocrliius gorbyi Milltr.Cyphocrinus gorbyi Miller, N. A. (Jeol. Pal., 1st App., 1892, p. G76, figs. 1221-22;18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, p. 305, pi. 7, figs. 14-16;adv. sheets, 1892, p. 51, pi. 7, tig.s. 14-16.Ilyptiocrinus typus \\'achsmuth and Springer, Amer. Geol., 10, 1892, p. 188;Mem. Mus.'Comp. Zool., Harvard, 20, 1897, p. 201, ])1. 19, figs. G a^c.Niagaran (I>aurel): St. Paul, Shelby County, Indiana.("TPHOTRYPA Ulrich and Baseler. Genotype: Leptotrypa acervulosa Ulrich.(\-i:)hotr\'pa Ulrich and Bassler, Smiths. ]\risc. Coll.. 47, 1904, pp. 24, 29.Clyphotrypa acervulosa (Ulrich).Leptotrypa acervulosa Ulrich, Geol. Minnesota, 3, 1893, p. 318, pi. 27, figs. 24, 25.Oyphotrypa acervulosa Ulrich and Bassler, Smiths. Misc. Coll., 47. 1904, p. 30,pi. 8, figs. 1-3.Trenton: Decorali, Iowa; Goodhue County, Minnesota (Prosser); Burgin andFrankfort, Kentucky; Ontario.Holotype.?VjAi. No. 43189, U.S.N.M.('yphotrypa bulbosa (BilUngs).Stenopora bulbosa Billings, Canadian Nat. Geol., 2d ser., 2, 1865, p. 429; (;atal. 8il.Foss. Auticosti, 1866, p. 32.Gamachian (Ellis Bay): Gamache Bay, etc., Anticosti.Cyphotrypa corrugata (Weller).Monotrypa corrugata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 223, pi. 18,figs. 1-5.Cjqihotrypa corrugata Ulrich and Bassler, Miiryland CJeol. Surv., Low. Bev.,1913, p. 269, pi. 42, figs. 5-9; pi. 44, fig. 4; pi. 52, figs. 1, 2.Il<'ldorbergian: Near Tri States, Now York (Decker Ferry); Cash ^'alley, etc.,Maryland (Keyser).Pleslotij'pes.?Cat. No. 53651, U.S.N.M.Cypliotrypa frankfortensis Ulrich and Bassler.(^'yphotrypu frankfortensis Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 30,pi. 8, figs. 7-9.Trenton (Cynthiana): Frankfort and Burgin, Kentucky.ffolotype.?Cut. No. 43188, U.S.N.M.Cyphotrypa InTormis (Ulrich).Leptotryi)ainformis Ulrich, Geol. Minnesota, 3, 1893, p. 317, pi. 27, figs. 22, 23.(Cyphotrypa informis Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, p. 30(gen. ref.).Black River (Decorah): Minneapolis and St. Paul, Minnesota.Cyphotrypa seinlpilarls (Ulrich).Leptotrypa semipilaris Ulrich, (ieol. Surv. Illinois, 8, 1890, p. 457, pi. 36, figs.5-5d.?J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p. 181.?Simp-son, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 580, fig. 148 (not149, 150=Lept-pricardinia lamellosa Hall, Pal. New York, 3, 1859, p. 266, pi. 49a, figs. la-r.Oypricardinia cf. lamellosa Maynard, Maryland Geol. Surv., Low. Dev., 1913, ]i.463, pi. 78, figs. 6, 7.Helderbergian: Albany County, New York (New Scotland) ; Keyser, AVest A'ir-ginia (Keyser).Oypricardinia subovata Miller and Dyer.CyprkardiiiiasubovataMillerandDyer, Cont. toPal., 2, 1878. p. 10. pi. :l. ligs. 8.8:i.Niagaran (Waldron): Waldron, Indiana.Cypricardinia .sul)quadrata Savage. < A'prioardinia subquadrata Savage, Bull. Geol. Sur^-. Illinois, 23, 191:;. j). 95,pi. 5, fig. 26.Upper Medinan (Edgewood-Noix): Near Louisiana, Missouii.Cypricardinia undulostriata (Hall).Modiolopsis? undulostriata Hall, Pal. New York, 2, 1852, p. 284, pi. 59, fig.s. Ga, l^.C^Ttodonta undulostriata Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 410.Cyi^ricardinia undulostriata Foerste, Geol. Surv. Ohio, Pal., 7, 1893. p. 5(11, pi. 37,figs. 9a, b.Clinton { Rochester ) : Lockport, New York.Upper Medinan (Brassfield): Dayton, Ohio.Cypricardites Conrad. Genotype: C. curtus Com-ad.Cj'pricai'dites Conrad, 5th Ann. Rep. New York Geol. Sur^', 1841, p. 51.Not Cypricardites of most authors.Observation.?See Geologj' of Minnesota, 2, 1897, j). 535, for remarks on this genus.CypmcARDiTES of authors. See Cyrtodonta Billings, Ortonella Ulrich, and Vanux-emia Billings.Cypricardites acutumbona Miller. See Vanuxemia acutumbona.Cyi'Ricardfte.s afkixis Miller. See Cyrtodonta affinis.(YrRicARDiTE.s AMPLUS Miller. See Cyrtodonta ampla.Cypricardites amygdalina Miller. See Ambonychia amygdalina. ( Y'piacARDrrES anousta Miller. See Ctenodonta macheeriformis.(JvpRicAUDiTES ANGUSTiFRONS Courad. See Modiolopsis modiolarie. ( YPRicARDiTES AXODONTOiDES Emmons. See Modiolopsis sinuata. < 'YPRICARDITE.S ANTicosTiExsi.s Miller. See CjTtodonta? anticostiensis. ( YPRicARDrrES BiLUNGSi Miller. See Cyrtodonta billingsi.Cypricardites breviuscula Miller. See Cyrtodonta breviuscula.Cypricardites canadensi.s Miller. See CjTtodonta cjinadensis. ('YPRICARDITES? cARiNATA Mcck. Seo ^\^litella carlnata.Cypricardites c.\s\veli,i Foerste. See Cuneamya caswelli.("-YPRICARDITES C1NGUI.ATA Ulrich. See Cyrtodonta cingulata.Cypricardites coRutroRMts Miller. See Plethocardia? cordii'ormi.f. 344 MUl.l.liTlN \y^, UNllKU SlAlEti .SAi'H>.NAL MUBfciDM.Cypricardites curtus Conrad. Not recognizedCypricardilcs curta Conrad, 6th Ann. Rep. New York Geol. Surv., 1841, p. 63.Salmon River: Near Rome, New York, and Richmond, Indiana.Observation.?Foerste (Bull. Sci. Lab. Denison Univ., 17, 1914, p. 298) attemptsto resurrect this form as a species of Ischyrodonta with the well-known I. imio-noides as a syuouym. Conrad's definition is worthless, and the figures given byHall (]2th Rep. New York State Cab. Nat. Hist., 1859, p. 9) is a view of the interiorof some unknown CjTtodonta.C^TPRicARDiTEs DESCRiPTUs Sardesou. See Cyi-todonta descriptus.CvpRicAHDrrEs DIGNU8 Sardeson. See CjTtodonta dignus.CvpRicARmTEs Emma Milh-r. See Rhytimya emma.Cypricarditks rERRucJiNEVM Hall and Whitfield. See Cyrtodonia? feiruginea.Cypricardites pinitimus Sai-deson. See CjTtodonta finitimus.Cypricardites (Vanuxemia) pragosa. See Vanuxeraia fragoea.Cypric.ardites ganti Miller. See Modiolodon ganti.Cypricardites germanijs Ulrich. See Cyrtodonta grandis germana.Cypricardites glabella Ulrich. See Cyrtodonta glabella.(Jypricardites grandis Ulrich. See Cyrtodonta grandis,Cypricardites hainesi Miller and Faber. See Ortonella hainesi.Cypricardites halli Nettelroth. See Cyrtodonta halli.Cypricardites harrieita Miller. See Cyrtodonta? liarrietta.Cypricardites haynianus Ulrich. See Vanuxemia liayniana.Cypricardites hindi Miller. See ^^^litella hindi.CYPRicARr)iTEs HURONENsis Miller. See Cyrtodonta lunonensia.Cypricardites iuflatua (Emmons). Not recognized . Nuculites inflata Emmons, Nat. Hist. Geol. New York, 2, 1842, p. 395, fig. 2.Cypricardites inflatus Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).Cypricardinia inflata Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 177,figs.Trenton: Watertown, New York.Cypricardites insularis Miller. See Cyrtodonta? insularis.C'ypricarditeB iowensis (Owen).Cardium lov.'^ensis Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 2d ed., 1844. p.84, pi. 17, fig. 8.Cypricardites iowensis Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.).Mohawkian: Iowa and Wisconsin.Observation.?Side view of cast of some unrecognizable pelecypod.Cypeicardites iblandicus Hall. See Cyrtodonta huronensis.Cypeicardites LATtra Miller. See Modiolopsia latua.Cypricardites lrocothea Miller. See Cvrtodouta leucot.hea. BIBLIOORAPmC hlUT OF OE.XKViA AND ^ii?^:('lKS. .".-If)Ctprioakdites LUctTLENTtTS SardcBon. See C^Ttodonta gramlie lijculentj.Oyvkicardites MEGAMBoxt's Wliilfield. See ^Vllit?lla megamltoini.Oypricardite.s minxksotkxsts Sardeson. Soc Cyrtndonta fjlaholla.(YPRiCARDiTES MiSEXERi Miller. Soc IsclijTodonta miseru-ri. ( 'ypricardites? modkstus Ulrich. See Saffordia modeeta.('YTRiCARDiTES MODiOLARis Eminoiis. Sco Modiolopsis modiolarin. ( 'ypricarditks NANUS Ulricli. See Vanuxemia nana.Cyphtoardites xAstTTA Conrad . See Orthodesma nasutuni. ( /YPmcARDiTEs NioTA Hall aiul AMiitfield . Seo Vanuxemia niota.Cypricakdites obliquus Meek and Worthen. See Oyrtodoiita ohliqua. ( 'ypricardites obsoletus Lesley. See Modiolopsis subalatu^.Cypricarditer obtusifroxr TTlrirh. See Vanuxemia obtusifrons.('ypricardites obtusus Miller. See Cyrtodonta nbtusa. ( 'ypricardites ovai.is Miller. See Isohyrodonta ovalifi.('ypricardites oyata Conrad. See Modiolopsis modiolaris.C'ypricardites oa'ieormis Ulrirh. See Cyrtodonta oviformis.('ypricardites persimilis Miller. See Cyrtodonta persimiliH.('ypricardites plebeia Miller. See ^\^Iitella plebeia. ( 'ypricardites ponderosa Miller. See Cyrtodonta ponderosa.('YPRICARDITES quadraxoularis ^MiitfieUl. Seo ^^^^itella quadransnlaris.Cyprlcarditesf^ quadrllatera Hall.Cypricardites? quadrilatera Hall, 20th Rep. New York State Cab. Hist., 1868, j). .340, pi. 14 (5), fig.s. 8-10; rev. ed. 1868 (1870), p. 388, pi. 14. %s. 8-10.Niagaran (Racine): Bridgeport, IllinoiB.Cypricardites rectirostris 'WTiit.field. See Vanuxemia reetirostris.(jYpricardites rotundata Hall and Wliitfield. See Vanuxemia rotundata.(Jypricardites rotuxdatus (part) Whitfield. See \'anuxemia suberecta.Cypricardites rugosus Miller. See Cyrtodonta rugosa.Cypricardites sapfordi Hall. See Cyrtodonta saffordi.('ypricardites sardesoxi Ulrioh. See Vanuxemia sardesoni.Cypricardites sigmoidea Miller. See WTiitella? sigmoidea.('ypricardites sinuata Emmons. See Modiolopsis sinuata.Cypricauditeb spinipera Miller. See CjTtodonta Bpinifers.Cypeioaedites 8TEELINGEN8I8 Miller. See Whitella Btorlingensis.Cypricardites subangui-atus Miller. See Cyitodonta eubangulata. 346 BULLETIN 02, UNITED STATES NA_TIONAL MI^'-?E^M.CypRiCAumTEs subcarinaja Miller. See Cyrtodonta subcarinata. ( 'ypricardites subovatus Miller. See Cyrtodonta huronensis.Cypricardites subspatulata Miller. See Prolobella subspatiilata.Cypricardites suix'odorsatus Miller. See Saffordia sulcodorsata.Cypricardites texellus Ulrich. See Cyrtodonta tenella.Cypricardites terminalis Ulrich. See Yanuxemia terminalis.Cypricardites triangularis Sardeson. See Vaniixemia hayniana.Cypricardites uxgulata Miller. See Vanuxeniia un^rulata.Cypricardites ventralis ^liller. See Saffordia ventralis.Cypricardites ventricosa Miller. See WTiitella ventricosii.Cypricardites ventricosus Whitfield. See Cyrtodonta billingsi.Cypricardites vetusta Miller. See Cuneamya vetusta.Cypricardites vicinus Sardeson. See A'anuxemia obtusifrons.Cypricardites winchelli Miller. See ]\Iodiolodon windielli.Cypricardites wortheni Ulrich. See Yanuxemia wortheni.CYPRIDINA Milne-Edwards.Cypridiua Milne-Edwards in Lamarck's Anim. sans Yert., 5, 1838, p. 178.?Miller,N. A. Geol. Pal., 1st App., 3892, p. 700.?Basslor, Zittel-Eastman Textb.Pal., 1913, p. 741.Cypridlna antlqua Jonoa.Cypridina auliqua Jones, Geol. Mag., dec. 5, 1, 1904, p. 438, fig. 1.Trenton?: Wenoma, Lake Ontario, near Hamilton, Ontario.CTRTACTINOCERAS Hyatt. Genotype: Cyrtoceras rebelle Barrando.Cyrtactinoceras Hyatt, Zittel-Eastman Textb. Pal., 1900, p. 528; ibid., 2d ed.,1913, p. 609.?Ruedemann, Bull. New York State Mus., 90, 1906, p. 448.Cyrtactinoceras boycii (WTiitfield).Cyi-toceras boycii WTiitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 326, pi. 29,fig. 4.?Brainerd and Seely, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 22.Cyrtactinoceras boycii Ruedemann, Bull. New York State Mus., 90, 1906, p,489, pi. 35, figs. 1-4; figs. 45-47.?Grabau and Shiraer, N. A. Index Fossils,2, 1910, p. 117, fig. 1352.Chazyan (Crown Point, A'alcour): Isle La Motte, Yermont.Cyrtactinoceras champlainense Ruedemann.(Cyrtactinoceras champlainense Ruedemann, Bull. New York State Mus., 90,1906, p. 491, pi. 34, fig. 3; pi. 36, figs. 1, 2, figs. 48-50.?Grabau and Shimer,N. A. Index Fos-sils, 2, 1910, p. 117.Chazyan (Yalcour): Near Chazy, and Saranac River at Piatt sburg, New York.CTRTENDOCERAS Remclc.CjTtendoceraa (Remele) Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 515;2d ed., 1913, p. 596. L;ll>Ll<)(;HAi'lll(' LIST OF (iENERA AXD SPECIES. .'M7('yrtendoceras(?) priscum Ruodomaiiu.<'ATtendocei-as(?) priscum Ruederaanu, Bull. New York State Mub., 90, 1906,p. 430, pi. 2, figs. 2-5.Canadian (Beekmantown): Beekmantown, New York.I'YRTHiA U'Orbigny. See Cyrtia Daliuau.CYRTIA Dalman. Genotype: Anomites expon-ectUB Wahlenberg.CATtia Dalman, Kongl. Sveiiska Vet.-Akad. Handl. for 1827, 1828, pp. 93, 97.?Davidson, British Foes. Bracb. Pal. Soc, 1853, p. 83; 1859, p. 66.?Billings,Canadian Jour., 6, 1861, p. 262.?Zittel, Handb. Pal., 1, 1880, p. 683.?Nettel-roth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, p. 93.?Miller, N. A. Geol. Pal., 1889, p. 342.?Hall and Clarke, Pal. New York, 8,pt. 2, 1893, p. 40; 13th Ann. Rep. New York State Geol., 1895, p. 759.?Koken, Die Leitfossilien, Leipzig, 1896, p. 243, fig. 204, 3.?Schuchert,Zittel-Eastman Textb. Pal., 1, 1900, p. 336; 2d ed., 1913, p. 412.Cyithia D'Orbigny, Prodr. Pal., 1, 1849, p. 41.Cyrtia cllftonensis Foerste.Cyrtia cliftonensis Foerste, Jour. Geo!., 11, 1903, p. 709; Bull. 8ci. Lab. Denisf)uUniv., 14, 1909, p. 91, pi. 2, fig. 32.Niagaran (Brownsport): Near Clifton, Tennessee.Cyrtia exporrecta Hall and AMiitfield, 1875. See CjTtia exporrecta myrtia.Cyrtia eiporrecta (Wahlenborg).Anomites exporrectus \Vahlonl)erg, Nova Aria Rogias Soc. Scient. IJpsal, 8, 1S2I,p. 64.Spirifera (CjTtia) trapezoidalis Hall and ^Miitfiold, 24tli Rep. New York StateCab. Nat. Hist., 1872, p. 183.Cyrtia trapezoidalis Hall and Whitfield, 27th Eep. ibid., 1875, pi. 9, figs. 19-21.Cyrtia exporrecta Dalmau, Koiigl. Vet.-Akad. Handl. for 1827, 1828, p. 118.?Nettelroth, Kentucky Fossil Shells, ^Mem. Kentucky Geol. Surv., 1889, p.93, pi. 27, figs. 6-8, 20.?Miller, N. A. Geol. Pal., p. 342, 1889, fig. 557.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 42, pi. 28, figs. 1, 48, 49, 51.Silurian: Europe; Louisville, Kentucky (Louisville); Osgood, Indiana (Osgood).Pl?motype.?Cat. No. 51326, U.S.N.M.Cyrtia exporrecta var. ahrecta Nettelroth. See Cyrtia exporrecta myrtia.Cyrtia exporrecta myrtia (Hillings).Cyrtia myrtia Billings, Pal. Fossils, 1, 1862, p. 165, fig. 149.?Hall and ClarkePal. New York, 8, pt. 2, 1893, p. 42.?Kindle and Breger, 28th Ann, Rep.Dep. Geol. Nat. Res. Indiaiui, 1904, p. 443, pi. 9, figs. 10, 12.Cyrtia trapezoidalis var an-ecta Hall and "^Miitfield, 24lh Rep. New York StateCab. Nat. Hist., 1872, p. 183.Cyrtia exporrecta Hall and AMiitfield, 27th Rep. ibid., 1875, pi. 9, figs. 22, 23.Cyrtia exporrecta var. arrecta Nettelroth, Kentucky Fossil Shells, Mem. Ken-tuTtia exporreotamyi'tia.Cyrtidoorinu.s Angeliii. See Leoanocrinus Hull.('YRTINA Davidson. Genotype: Cyrtia heteroclita Dcfa-ance.Cyrtina Davidson, Mou. British Carb. Brach. Pal. Soc, 1859, p. 66.?Hall, Pal.New York, 4, 1867, p. 263; 20th Rep. New York State Cab. Nat. Hist., 18G7,p. 251.?Zittel, Handb. d. Pal., 1, 1880, p. 683.?Davidson, Mon. BritishFobs. Brach., 5, Sil. Suppl., Pal. Soc, 1882, p. 80.?Herrick, Bull. Sci. Lab.Denison Univ., 4, 1888, p. 14.?Nettelroth, Kentucky Fossil Shells, Mem.Kentucky Geol. Surv., 1889, p. 95.?Miller, N. A. Geol. Pal., 1889, p. 342.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 43; 13th Ann. Rep. NewYork State Geol., 1895, p. 763.?Koken, Die Leitfossilien, Leipzig, 1896, p.243, figs. 204, 6.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 219.?Schuchert, Zittel-EastmanTextb. Pal., 1, 1900, p. 335, 2d ed., 1913, p. 412.?Grabau, Bull. New York State Muh., 45, 1901, p. 197; Bull. Buffalo Soc. Nat.Sci., 7, 1901, p. 197.Cyrtlua magnaplicata Weller.Cyrtina magnaplicat^ Weller, Gedl. y-\n-v. N*ow Jersey Pal.. 3, 1903, p. 238, jil.21, figs. 46-49.Helderbei-gian (Decker Ferry): Two miles ^()llth of Tristates, New York.Cyrtina pyramidalls (Hall).Spirifer pyramidalis Hall, Pal. New York, 2, 1852, p. 266, pi. 54, fig. 7.C>Ttina pyramidalis Miller, N. A. Geol. Pal., 1889, p. 343.?Grabau, Bull. NewYork State Mus., 45, 1901, p. 197, fig. 115; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 197, fig. 115.Clinton (Rochester): Lewiston, New York.CTETOCERAS Goldfuss. Genotype: C. depressum Goldfuss.Cyrtoceras Goldfuss, in De la Beche's Handbuch dor Geognosie, 1832, p. 536. ? Portlock, Rep. Geol. Londondeny, 1843, p. 411.?McCoy, Syn. Char. Carb.Foss. Ireland, 1844, p. 11.?D'Orbigny, Prodr. de Pal., 1," 1849, p. 1.?Wood-ward, Man. MoUusca, pt. 1, 1851, p. 91.?Saemann, Palseontographica, 3, 1852.pp. 156, 161.?McCoy, Brit. Pal. Rocka Fosa., 1854, p. 312.?Pictet, Traitsde Pal., 2d ed., 2, 1854, p. 652.?Barrande, Bull. Soc. Geol. France, 2d ser., 12,1855, p. 158.?Emmons, Amer. Geology, l,pt. 3, 1855, p. 147.?Billings, Cana-dian Nat. Geol., 2, 1857, p. 136, pi. 2, fig. 3.?Chapman, Canadian Jour., n. e.,2, 1857, p. 266; 8, 1863, p. 22.?Salter, Geol. Surv-. Canada, dec. 1, 1859, p.31.?Barrande, Syst. Sil. Centre Boheme, 2, pt. 1, 1867, p. 375.?Miller, Cin-cinnati Quart. Jour. Sci., 2, 1875, p. 131.?Hall, Pal. New York, 5, pt. 2,1879, pp. 354, 368, 389.?Blake, Mon. Brit. Fosa. Cephalopoda, 1882, p. 54.?Zittel, Handb. d. Pal.. 2. 1884, p. 373.?Foord, Oat. Foss. Ceph. Brit. Mus., BIBLI0C4BAPHIC LIST OF GENEBA AND SPECIES. H49CTETOCERAS?Continued.vol. 1, 1888, p. 2C2?Miller, N. A, Geol. Pal., 1889, p. 432.?Wliidbome,Men. Dev. Fauna South England, 1, Pal. Soc, 1890, p. 102.?Kokeu, DieLeitfoesilien, Leipzig, 1896, p. 49, fig. 33.?Clarke, Geol. Minnesota, 3, pt.2,1897, p. 803.?Grabau, Bull. New York State Mus., 45, 1901, p. 21?); liull.Buffalo Soc. Nat. Sci., 7, 1901, p. 216.?Hyatt, Zittel-Eastman Tcxtb. Pal,1, 1900, p. 530.?Foord, ^lon. Carb. Ceph. Ireland, pt. 5, Pal. Soc., App.,1903, p. 212.?Clarke and Ruedemann, Mem. New York State Mus., 5, 1903,p. 94.?Cuminga, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.1026.?Hyatt, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 611.Glyptodeudron Claypole, Amor. Jour. Sci Arts, 15, 1878, p. 302. (Genotype:G. eatonen.se Claypole).?Foerste, Amer. Geol., 12, 1893, pp. 134-139.Glyptoceras Foenste, Geol. Siuv. Ohio, Pal., 7, 1893, p. 537. (Genotype: G.eatonen.so Claypole.).Cyktoceka.s? abkuptum Hall. See Orthoceras abruptuin.Cyrtoceras? acluaccllum ^\^litfie]d.CjTtoceras acinacellum ^^'hitfield, Bull. Amer. Mus. Nat. Hist., I, 1886, p. 327,pi. 27, figs. 10-13.?Ruedemann, Bull. New York State Mus., 90, 1906, ]).508.Canadian (Beekmantown) : Fort Cassiii, Vermont.Cyrtoceras alethes Billings.Cyrtoceras Alethes Billing.s, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 193, textfig. 177a-o.Ozarkian? (Levis?erratic): Point Levis, Quebec.Cyrtoceras amcBUum Miller.Cyrtoceras ama?num Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 105, pi.3, fig. 8.?James, J. F., ibid., 8, 1886, p. 247.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 1027, pi. 49, fig. 1.Richmond (Whitewater): Richmond, Indiana.Cyrtocekas (Phragmoceras) amplicorne Hall. See Halloceros liercules. < yrtocera.s annulatum Hall. See Spyroceras subannulatum. -Cyrtocekas .\rcticameratum Hall. See Mselonoceras arcticameratuui . ( YRTOCERAs ARCUATUM Hall. See Cyi-toceras subarcuatum.("yrtoccras aristides Billings.Cyrtoceras aristides Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 316.Canadian (Beekmantown): Phillipsburg, Quebec.Cyrtoceras ))afflnense Schuclurt. < 'yrtoceras baffinensis Schuchert, IVk-. U. S. Nat. Mus., 22, 1900, p. 171. i i. II,figs. 11-13.Mohawkian: Head of Frobisher Bay, Baftin Land.Holotypc.?CAt. No. 28198, U.S.N.M.Cyrtoceras beekmaneuse Whitfield.Cyrtoceras beekmanensis Whitfield, r.uii. Amer. Mus. Nat. Hist., 2, 1889, p. 57,pi. 10, figs. 2, 3.?Ruedemann, Bull. New York State Mus.. 90. 1906, p. 506.(iinadian (Beekmantown "): Beekmantown, New York. < YRTOCERAS Biixixo.m Salter. Sco Ziltf'locpnif* biljingsii and Z. li:vlli.n.nuni. 350 BULLETIN \}'2, UNITED STATES NATIONAL MUSEUM.Cyktocekas bondi Safford. See Plectooeros boudi.Cyrtoceras bovlnuin Clarke and Ruedemaun.CjTtoceraH bo\inum Clarke and Riiedemauu, Mem. New York State Mus., .">,1903, p. 90, pi. 1(5, figs. 8, 0; pi. 18, figs, r,, G.Xiagaran (Guelph): Rochester, New York.Cyrtoceras boycii Whitfield. See ('yrtactinoceras boycii.Cyrtoceras brevicorne Hall. See Cyclostomiceraa brevicome.Cyrtoceras camiirum Hall.Cyrtoceraa camurum Hall, Pal. New York, 1, 1847, p. 196, pi. 42, fig. 6.?Emmons,Amer. Geologj', 1, pt, 2, 1855, p. 148.?Whitfield, Geol. Wisconsin, 4, 1882,p. 231, pi. 7, figs. 7, 8, 9.?Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 805, pi.60, figg. 5, 6.Mohawkian: MiddleA-ille, New York (Trenton): Beloit, \\isconsin (Black River).Cyrtoceras? cancellatum Hall. See Cyrtoceras eubcancellatum.Cyrtoceras capricornulua (Troost). Not recognized.Conilitea capricornulus Troost, 5th Geol. Rep. Tennessee, 1840, p. 50.Cyrtoceras capricornulus Troost, 6th Geol. Rep. Tennessee, 1841, p. 178.Ordo'\dcian(?): Davidson County, Tennessee.Cyrtoceras carrollenso Worthen.Cyrtoceraa Carrollensia Worthen, Geol. Surv. Illinois, 6, 1875, p. 496, pi. 23, fig. 3.Trenton (Galena): Carroll County, Illinois.Cyrtoceras cinetuturn Foerstc.Cyrtoceras cinctutus Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 61, pi. o,figa. 37a-b.Niagaran (Osgood): Clifton, Tennessee.Cyrtoceras clintonense Foerate.CjTtoceraa Clintonense Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 534, pi. 36,figa. 2a-e.Upper Medinan (Brasslield): Huffmans quarry, near Dayton, Ohio.Cyrtoceras clitus Billings.Cyrtoceraa clitua Billinga, Cat. Sil. Foss. Auticosti, Geol. Unrw Canada, 1866, }>.85, fig. 24.Niagaran (Lockport): Grimsby, Ontario.Cyrtoceras confertisslmum ^\Tiitfield.CjTtoceras confortissimum Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p.327, pi. 27, figs. 7-9.?Ruedemann, Bull, New York State Mua., 90, 1906,p. 506, pi. 38, figs. 1-1.Canadian (Beekmantown) : Fort Caasin, Vermont; Valcour, New York.CjTtoceras conicum Owen. Not recognized.Cyrtoceraa conicum Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 2d ed.,1844,p. 70, pi. 16, fig. 9.Mohawkian: Wisconsin.Cyrtoceras oonoldale Wetherby.CjTtoceras conoidale Wetherby, .Tour. Cincinnati Soe. Nat. Hist., 4, 1881, p. 78,pi. 2, figa. 6, 6a.Mayaville: Maury County, Tennessee (Leipera); Boyle and Garrard Counties,Konmckv. BIBLIOGKAPHIC LIST OF OENERA AND SPECIES. 351Cyrtoceras constrlctostrlatnm llall.Cyrtoceraa cougtrictoHtriatum Hall, Pal. New York, ], 1847, p. 195, pi. 42, figa.2a, b, 8c, d.?Emmons, Amor. Geology, 1, i)l. 2, 1855, p. ]47.TreiUon: ^^ddlc^?ille, New York.('yrtocku-\s coNSTiacTUM Billings. 8cc (~)nco. Ontario Bur. Mines, 19i;i, ]>. 42.Niagaran: Mouth of Nelson Kiver, Manitoba.("yrtoceras corniculum Hall. See C'yrtoceras tenuistriatum.Cyrtoceras corniilum Schuchert.("yrtoceras cornulum Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 170, pi. 14,figs. 8-]0.MoJiawkian: Head of Frobislier Bay, Baffin Laud.Cotype.?L'At. No. 28121, U.S.N.M.Cyrtocera.s coryrton Billings.Cyrtoceraa Corydon Billings, Cat. Sil. Fosa. Anticosti, Geol. Surv. Canada, ISBG,p. 85, lig. 23.Niagaran (Lockport): Grimsby, Ontario.Cyrtoceras(f) cuneatum Whiteaves.Cyrtocera3(?) cuneatum Whiteaves, Geol. Surv. Canada, Pal. Fosa., 3, pt. 4,1906, p. 282; Ottawa Nat., 20, p. 133, figs.Niagaran: Stonewall, Manitoba.Cyrtocera.s? tlactyloides Dwight.Cyrtoceras? dactyloidea Dwight, Amer. Jour. Sci. Arts, 3d ser., 27, 1884, p. 255,pi. 7, figs. 9, 9a.Canadian (Beekmantown): Rochdale, New York.Cyrtoceras dardanum Hall. See Cyrtorizoceras dardanum.Cyrtoceras dictys Billings.Cyrtoceras Dictys Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, j). 192, fig. ]76.Canadian (Levis): Point T-evis, Quebec.Cyrtoceras drcsbachense Sardcson.Cyrtoceraa dresliachense Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896,p. 102, pi. 6, fig. 4.Ozarkian (Oneota): Dresbach, Minnesota.Cyrtoceras duulelthense Miller and Gurley.Cyrtoceras dunleithense Miller and Gurley, Bull. Illinois State Mue. Nat. Hist.,11, 1896, p. 30, pi. 3, figs. 11, ] 2.Black River (Platteville): Dunleith, Illinois.Cyrtoceras (Glyptoceras) eatonense (Claypole).Glyptodendron eatononso Claypole, Amer. Jour. Sci. Arts (3), 15, 1878, p. 302;Geol. Mag., dec. 2, 5, 1878.?Miller, N. A. Geol. Pal., 1889, p. 119, fig. 39.Cyrtoceras (Glyptoceras) eatonense Foerste, Geol. Surv. Ohio, Pal., 7, 1893,p. 535, pi. on p. 530, figs, la-c, 2.Cyrtoceras (Glyptodendron) eatonense Foersto, Amer. Geol., 12, 1893. p. 139,pi. 7, figs. 1, 2.Fpper Medinan (Brassfieldj: Near Eaton and m-.w Dayton, Ohio. 352 BULLETIN 92, UNITED STATES NATION.VL MUSEUM.Cyrtoceras engium Hall.CjTtoceias euguini HaJl, Rep. Geol. Surv. Wiaconsin, 1861, p. 40.?Whitfield,Mem. Amcr. Mus. Nat. Hist., 1, pt. 2, 1896, p. 66, pi. 9, figs. .3, 4.Black River (Platteville): Beloit, Wiscousiu.Cyutoceras EXiGi;uM Billings. See Oncoceras exigiium.Cyrtoceras faberi J. J'\ James.Cyrtoceras faberi James, J. F., Jour. Cincinnati Son. Xat. Hist., 8, 1886, p. 246,pi. 4, figs. 3a, b.Richmond: Waynes\dlle, Ohio.Cyrtoceras falx Billings. See Maelonoconis falx.Cyrtoceras feathei\stonhaughi Clark*'.Cyrtoceras featherstonhaughi Clarke, Geol. I^Iiunesota, 3, pt. 2, 1897, p. 807. pi. 58,figs. 12-1.5.Black River (Platteville): Cannon Falls, Minnesota.Cyrtoceras fllosum (Conrad).Cyrtoceras filosum (Conrad M. S.) Emmons, Nat. Hist. New York Geol., 2, 1842,p. 392, fig. 4.?Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 369, fig. 4 on p. 365.?D'Orbigny, Prodr. de Pal., 1, 1849, p. 2.?Lesley, Geol. Surv\ Pennsylvania,Rep. P 4,' 1889, p. 181, fig.Cyrtolites filosum Hall, Pal. New York, 1, 1847, p. 190, pi. 41, figs. 3a, b.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 167, pi. 12, fig. 4; Man. Geol.,1860, p. 98, fig. 87.Trenton: WatertoAvn, New York.Cyrtoceras josteri Hall. See Cyrtorizoceraa fosteri.Cyrtoceras fragile Billings. See Oncoceras fragile.Cyrtoceras fultonensis Meek and Worthen. See Cyrtorizoceras dardanum.Cyrtoceras giganteum McChesney. See Nautilus?? cancellatus.Cyrtoceras gracile Cleland.Cyrtoceras sp. Cleland, Amer. Pal., 3, Bull. 13, 1900, p. 19, pi. 17, figs. 5, 6.Cyrtoceras gracilis Cleland, Bull. Amer. Pal., 4, 1903, p. 13, pi. 3, fig. 11.Canadian (Tribes Hill) : Fort Hunter, Tribes Hill, and Canajoharie, New York.Cyrtoceras halleanus D'Orbigny. See Zitelloceras hallianuni.Cyrtoceras hercules Hall. See Protophragmoceras hercules.Cyrtoceras Hertzeri Hall and 'WTiitiield. See Hexameroceras hertzeri.Cyrtoceras hitzl Foerste.Cyrtoceras hit zi Foerste, Bull. Sci. Lab. Denison l"ui\., IG. 1910, p. 78, pi. 1,fig. 7a, b; pi. 2, fig.s. 23a-c.Richmond (Whitewater-Saluda) : Madison, Indiana.Cyrtoceras houghtoni Clarke.Cyrtoceras houghtoni Clarke, Geol. Minnesota, 3, pt. 2, 1897, ]\ 807, pi. 59, figf.12-15.Black River (Platteville): Cannon Falls, Minnesota.Cyrtoceras howardl Miller.CjTtoceras howardi Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana. 1894.p. 323, pi. 12, fig. 1; adv. sheets, 1S92, p. 69, pi. 12, fig. 1.Niagaran (Laurel): St. Paul, Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 353Cyktoceras mnoxENSK BilUngf. Soe Oncoceras hiironense.Cyrtocoras iudiauense Miller.Cyi'toceras indianeusis Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892,p. G98, pi. 18, fig. 1, 2; adv. sheets, 1891, p. 88.Xiagaran (Laurel): St. Paul and Hartsville, Indiana.Cyrtoceras infiindlbuliim ^?hitiicld.Cyrtoceras infundihuhim Whitfield, Ann. Rej). for 1879, Geol. Surv. Wiaconsin,1880, p. 66; Geol. Wisconsin, 4, 1882, p. 300, pi. 20, figs. 4, 5.Niagaran (Racine): Racine, Wisconsin.Cyrtoceras irregulare Wetherby.Cyrtoceras irregulare Wetherby, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 79,pi. 2, lig. 3.?James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 246.Richmond (Waynesville) : Oregonia (Freeport) and Waynesville, Ohio; Versailles,Indiana.Cyrtoceras Isodorus Billings. See Cyrtorizoceras isodorus.Cyrtoceras juvenalis Billings.Cyrtoceras Juvenalis Billings, Pal. Foris., 1, Geol. Surv. Canada, 1865, p. 177; App.,p. 420, fig. 400a, b.Trenton: Montreal, Quebec.Cyrtoceras Kirbyi AMiitfield. See Ooceras kirbyi.Cyrtoceras lamellosum Hall. See Zitteloceras hallianum.Cyrtoceras laterale Hall.Cyrtoceras laterale Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 357,pi. 18 (9), figs. 4-6; rev. ed., 1870, p. 407, pi. 18, figs. 4-6, pi. 24, fig. 5.Niagaran (Racine and Guelph): Racine, Wisconsin.Cyrtoceras laticurvatum Whiteaves.Cyrtoceras laticurvatum Whiteaves, Canadian Rec. Sci., 6, 1895, p. 395.; Pal.Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 224, fig. 14.Black River or Richmond: Lake Winnipeg, Canada.Cyrtoceras ligarius Billings.Cyrtoceras Ligarius Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 176.Richmond: Drummond Island, Lake Huron.Cyrtoceras lociilosum Hall.Cyrtoceras loculosum Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 42. ? \Miitfield, Mem. Amer. Mus. Nat Hist., 1, pt. 2, 1895, p. 67, pi. 9, figs. 6-9.Ozarkian (Oneota): Madison, Wisconsin.Cyrtoceras lucillum Hall.Cyrtoceras lucillum Hall, 20th Rep. New York State Cab. Nat. Hist . (extras, 1865),1868, p. 349, pi. 18 (9), fig. 7; rev. ed., 1870, p. 406, pi. 18, fig. 7.Niagaran (Racine): Wauwatosa, Wisconsin.Cyrtoceras luthel Calvin.Cyrtoceras luthei Calvin, Amer. Geol., 10, 1892, p. 147; Bull. Lab. Nat. Hist.State Univ. Iowa, 2, 1892, p. 193.Ozarkian (Oneota): Northeastern Iowa.Cyrtoceras lysander Billings.Cyrtoceras Lysander Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 161, fig.146a-d (adv. sheets, 1862).Richmond: Cape Smyth, Manitoulin Island, lake Huron. .'^4248??Bull. 02?15 23 354 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Cyrtoceras macrostomum Hall.Cyrtoceras marginalis Conrad (not Phillips, 1841), Proc. Acad. Nat. Sci. Phila-delphia, 1, 1843, p. 334.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 147, fig.30.Cyrtoceras macrostomum Hall, Pal. New York, 1, 1847, p. 194, pi. 42, figs,la-c, 3a-b.?Clarke and Rnedemann, Bull. New York State Mus., 65, 1903,p. 584.Black River: Mineral Point, Wisconsin (Platteville); Middleville, New York;Carlisle, Pennsylvania.Cyrtoceras magister Miller.Cyrtoceras obscura Miller (not Barrande), Cincinnati Quart. Jour. Sci., 2, 1875,p. 132, text fig. 17.Cyrtoceras magister Miller, Cincinnati Quart. Jour. Sci., 2, 1875, j). 284.?James,J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 188G, p. 246.?Miller, N. A. Geol.Pal., 1889, p. 434, fig. 729.Eden (Southgate): Cincinnati, Ohio.Cyrtoceras niaiiltobeuse Whiteaves.Cyrtoceras Manitobense \\liiteaves. Trans. Royal Soc. Canada, 7, sec. 4, 1890,p. 80, pi. 13, figs. 3-5; pi. 15, fig. 4; Pal. Foss., Geol. Surv. Canada, 3, pt. 3,1897, p. 223.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 170.Oncoceras manitobense Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 799.Black River or Richmond: Lake Winnipeg, Manitoba; Baffin Land.Cyrtoceras marginalis Conrad. See Cyrtoceras macrostomiim.Cyrtoceras markoei Castelnau. Not recognized.Cyrtoceras Markoei Castelnau, Essai Syst. Sil. rAmeri(iue Septent., 1843, p. 30,pi. 9, fig. 3.Ordovician: Montmorency River, Canada.Cyrtoceras massiense Safford.Cyrtoceras Massiense Safford, Geol. Tennessee, 18G9, p. 290, pi. 4 (G 3), fig. 4a, b.Trenton: Nashville, Tennessee.Cyrtoceras mccoyi Billings.Cyrtoceras McCoyi Billings, Canadian Nat. Geol., 4, 1859, p. 467.Chazyan: Mingan Islands, Quebec.Cyrtoceras Metellus Billings. See Maelonoceras mctellus.Cyrtoceras microscopicum Dwight.Cyrtoceras microscoi)icum Dwight, Amer. Jour. Sci. Arts (3), 27, 1884, p. 256, pi. 7,fig. 11.Canadian (Beekmantown) : Rochdale, New York.Cyrtoceras Minneapolis Clarke. See Cyrtorizoceras minneapolis.Cyrtoceras missisquoi Billings.Orthoceras Missisquoi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 314,fig. 303.CjTtoceras missisquoi Miller, N. A. Geol. Pal., 1889, p. 435 (gen. ref.).Canadian (Beekmantown): Phillipsburg, Quebec.Cyrtoceras multicameratum Hall.Cyrtoceras multicameratum Hall, Pal. New York, 1, 1847, p. ]95, pi. 42, fig. 4.?Emmons, Amer. Geology, 1. pt. 2, 1855, p. 147.Trenton: Middleville, New York. BIBLIOGHAPHIC LIST OF GENERA AND SPECIES. 355CJyrtocerah mvkick Hall and Whitlield. See Kionocerae darwini.Cyrtoceras nashvlllense Miller.Cyrtoceraa nashvillensis Miller, 17lli Ann. Rej). Dep. Geol. Nat. Res. Indiana, p.6!>7, pi. ]G, fisr. 1 ; adv. sheets, 1891, p. 87.Niagaran (Osgood or I.aurel): West of Nashville, Tennessee.ryuTocKRAs NKLEu.s Hall. See Mtelonooeras neleiis.Cyrtoceras iiorwoodi Clarke.CjTtoceras norwoodi Clarke, Geol. ^Minnesota, 3, pt. 2, 1897, p. 809, pi. 60, figs.7-9.Black River (Platteville): Rockton, Illinois.Cyrtocekas obscura Miller. See Cyrtoceras magister.Cyktoceka.s orcas Hall. See Oncoceras orcas.Cyrtoceras orestes Billings.Cyrtoceras Orestes Billings, Pal. Foss., 1, Geol. Siirv. Canada, 1865, p. 177.Upper Medinan (Cataract): West Flamborough, Ontario.Cyrtoceras orodes Billings. See Cyclostomiceras erodes.Cyrtoceras planodorsatum Whitfield. See Tripteroceras planodorsatum.Cyrtoceras postumius Billings.Cyrtoceras Postumius Billings, Pal. Foss, 1, Geol. Surv. Canada, 1865, p. 178.Richmond: Cape Smyth, Manitoulin Island, Lake Huron.Cyrtoceras pusillum Hall.Cyrtoceras pusillum Hall. 20th Rep. New York State Cab. Nat. Hist., 1868, p. 357;rev. ed., 1870, p. 407.Niagaran (Racine): Racine, Wisconsin.Cyrtoceras 'quebecense Whiteaves.Cyrtoceras Quebecense Whiteavc?, Ottawa Nat., 12, 1898, p. 120; Geol. Surv.Canada, Pal. Foss., 3, pt. 4, 1906, p. 315, pi. 35, figs. 1, la.Canadian (Levis limestone): Point Levis, Quebec.Cyrtoceras raei Whitfield. See Ooceras? raei.Cyrtoceras rectum Whitfield.Cyrtoceras rectum Whitfield, Ann. Rep. for 1877, 1878, p. 85; Geol. Wisconsin, 4,1882, p. 319, pi. 24, figs. 6, 8.Niagaran (Guelph): Carlton, Wisconsin.Cyrtoceras regulare Billings.Cyrtoceras regulare Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p.314.Black River (Leray) : Pauquettes Rapids, Ottawa River, Canada.Cyrtoceras reversum Spencer. Not recognized.Cyrtoceras reversum Spencer, Bull. Missouri State Mus., 8, 1884, p. 60, pi. 7,fig. 8; Trans. Acad. Sci. St. Louis, 4, 1884, p. 610, pi. 7, fig. 8.?Clarke andRuedemann, Mem. New York State Mus., 5, 1903, p. 96.Niagaran (Lockport): Limehouse Station, Ontaiio.Observation.?Cast of the living chamber probably of Poteriocerafi sauridensClarke and Ruedemann, figured in a re>'ersed position. 356 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cyrtoceras rlgidum Hall.Cyrtoceras ri.gidum Hall, 20tli Rep. New York State Cab. Nat. Hist., 1868, p. 358,fig., pi. 16 (7), figs. 3-5; rev. ed., 1870, p. 408, pi. 16, figs. S-5, text fig. 5.Niagaran (Racine): Bridgeport, Illinois.Cyrtoceras .safifordi Miller.Cyrtoceras saffordi Miller, i7tli Ann. Rep. Indiana Dep. Geol. Nat. Rea., 1892,p. 698, pi. 17, figs. 2, 3; adv. sheets, 1891, p. 88.Trenton (Catheys): Nashville, Tennessee.Cyrtoceras scofleldi Clarke.Cyrtoceras scofieldi Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 810, pi. -19, figs. 9-11.Black River (Platteville) : Janesville, Wisconsin.Cyrtoceras septoris Hall and Whitfield. See Septameroceras septore.Cyrtoceras shumardi Clarke.Cyrtoceras shumardi Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 810, pi. 60, figs. 1-4.Black River (Platte^^:lle) : Cannon Falls, Mnnesota.Cyrtoceras simplex Billings.Cyrtoceras simplex Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,p. 313.Black River: "I^ot N. concession A. Nepeau," Canada.Cyrtoceras sinuatum Billings.Cyrtoceras sinuatum Billings, Geol. Surv. Rep. Progr. for 1853-56, 1857, p. 315. ? Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 312, pi. 40,figs. 3, 3a.Black River (Leray): La Petite Chaudi^re, Ottawa River, Canada.Cyrtoceras? stoneuse Safford.CjTtoceras? stonense Safford, Geol. Tennessee, 1869, p. 290, pi. 4 (G. 3), figs,2a-c.Stones River (Murfreesboroj : Murfreesboro, Tennessee.Cyrtoceras subannulatus D'Orlngny. See Spyroccras subannulatuni.Cyrtoceras subarcuatum D'Orbigny.Cyrtoceras arcuatum Hull (not Steininger, 1830), Pal. New York, 1, 1847, p. 196,pi. 42, figs. 5a-c.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 147.Cyrtoceras subarcuatum D'Orbigny, Prodr. de Pal., 1, 1849, p. 2.Trenton: Middleville, New York.Cyrtoceras subcancellatum llall.Cyrtoceras? cancellatum Hall (preoccupied). Pal. New York, 2, 1852, p. 290, pi.61, figs. 2a-c.Cyrtoceras subcancellatum Hall, Miller's N. A. Geol. Pal., Isted., 1877, p. 243.-Grabau, Bull. New York State Mus., 45, 1901, p. 216, fig. 148; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 216, fig. 148.Clinton (Rochester): Niagara Falls, etc., New York.Cyrtoceras (Glyptoceras) subcompressum Beecher.CjTtoceras subcompres.sum Beecher, 5th Rep. State Geol. New York for 1885,1886, pi. 14, figs. 2, 3; Pal. New York, 7, Sup., 1888, p. 35, pi. 129, figs. 2, 3.?Foerete, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 276, pi. 7, fig. 7. BIBLIOGRAPHIC LIST OF (iENEEA AND SPECIES. 357Cyrtoceras (Glyptoceras) subcompresisiim? ( 'ontinucd.CjTtoceras (Glyptoceras) subcompressum Foerste, Geol. Surv. Ohio, Pal., 7,1893, p. 535, pi. 32, figs. 7a-d; fig. 3 of pi. on p. 53G.CjTtoceras (Glyptodendron) subcomprepsum Foerste, Amer. Geol., 12, 1893, p.139, pi. 7, fig. 3.Upper Medinan (Brassfield): Near New Carlisle and near Springfield, Ohio.Cyrtoceras subrectum Hall.CjTtoceras subrectum Hall, Pal. New York, 3, 1859, 1861, p. 342, pi. fi9, figs. 3a-3d.Cajnigan (Manlius): Herkimer County, New York.Cyrtoceras subturbiuatum BilUngs.CjTtoceras subturbinatiim Billings, Geol. Surv. Canada, Rep. Progr. for 1853-185G,1857, p. 312.Chazyan (Mingan): Mingan Island, Quebec.Cyrtoceras surgens Barrande.Cyrtoceras surgens Barrande, Syst. Sil. Centre Boheme, 2, pt. 3, 1870, p. 728,pi. 431, figs. 10, 17.Canadian (Levis): Point Levis, Quebec.Cyt^tockras syphax Billings. See Eremoceras syphax.Cyrtoceras tenulseptum Faber.Cyrtoceras tenuisei^tum Faber, Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 18,pi. 1, figs. 3a, b, c.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 1028, pi. 49, figs. 2, 2a.Richmond (Wajiiesville) : Near Waynesville, Ohio; Versailles, Indiana.Cyrtoceras tenulstrfatum Hall.Cyrtoceras corniculum Hall (preoccupied). Rep. Geol. Surv. Wisconsin, 1862, p,41, figs. 1, 2.?Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 809, pi. 59, fig. 16.Cyrtoceras tenuistriatuni Hall, in Miller's Amer. Pal. Foss., 1877, p. 243.?Whit-field, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, pi. 9, fig. 12.Black River: Mineral Point, Wisconsin (Platteville) : Warsaw, Minnesota (De-corah).Cyrtoceras- thompsonl Miller.C\Ttocerasthompsoni I^Iiller, 18th Ann. Rep. Indiana, Dep. Geol., Nat. Res., 1894,p. 323, pi. 10, figs. 7, 8 (adv. sheets 1892).?CumingS, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 1029, pi. 49, figs. 3, 3a.Richmond: Longwood, Fayette County, Indiana.Cyrtoceras trentonense (Emmons).Orthoceratites trentonciisi.s Emmons, Nat. Hist. New York, Geol., 2, 1842, ]>.396, fig. 2.Cyrtoceras Ti-entonensis D'Orbigny, Prodr. do Pal.,1, 1849, p. 2 (gen. ref.).?Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 181, fig.Oncoceras trentonense Lesley, Ibid., p. 494, fig.Trenton: New York.Cyrtoceras vallaudighainl Miller.Cyrtoceras Vallandighami Miller, Cincinnati Quart., Jour. Sci., 1, 1874, p. 232,fig. 23.?James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 245.?Miller, N. A. Geol. Pal., 1889, p. 435, fig. 730.Maysville: Cincinnati, Ohio, and vicinity (Fairmount); Nashville and Columbia,Tennessee (Leipers). 358 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cyrtoceras vassarina Dwight.Cyrtoceras Vassarina Dwight, Amer. Jour. Sci. Arts, 3d ser., 27, 1884, p. 254, pL7, figs. 7, 7a, 8.Canadian (Beekmantown): Rochdale, New York.Cyrtoceras vontricosum Miller.Cyrtoceras ventricosa Miller, Cincinnati Qnart. Joiir. Sci., 2, 1875, p. 131, fig.16.?James, J. F., Jour. Cincinnati Soc. Nat. HLst., 8, 1886, p. 246.?Miller,N. A. Geol. Pal., 1889, p. 435, fig. 731.Eden (Southgate): Cincinnati, Ohio.Cyrtoceras whitneyi Hall.Cyrtoceras whitneyi Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 39.?"Whit-field, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 65, pi. 9, fig. 5.Richmond (Maquoketa): Maquoketa Creek, Iowa.Cyrtoceras(?) wlnonicum Sardeson.Cyrtoceras(?) winonicum Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896,p. 102, pi. 6, figs. 2, 3.Ozarkian (Oneota) : Near Dreshach, Winona County, Minnesota.CTRTOCEBINA Billings. Genotype: C. typica Billings.Cyrtocerina Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 178.?Barrande,Syst. Sil. Centre Boheme, 2, pt. 1, 1867, p. 451.?Hyatt, Proc. Boston Soc.Nat. Hist., 22, 1884, p. 266.?Miller, N. A. Geol. Pal., 1889, p. 436.?Holm,Geol. Foren. Stockholm Forenhandl., 14, 1892, pp. 126, 209.?Clarke, Geol.Minnesota, 3, pt. 2, 1897, p. 774.?Hyatt, Zittel-Eastman Textb. Pal., 1,1900, p. 517; 2d ed., 1913, p. 597.Cyrtocerina madisonensis (Miller).Tryblidium madisonense Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana,1894, p. 318, pi. 9, fig. 38 (adv. sheets, 1892).?Cumings, 32d Ann. Rep.Dep. Geol. Nat. Res., Indiana, 1908, p. 977, pi. 39, fig. 10.Cyrtocerina madisonensis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist.,17, 1894, p. 32.?Foerste, Bull. Sci. Lab. Denison Univ., 14, 1910, p. 74.Richmond (Whitewater-Saluda) : Madison, Indiana.Cyrtocerina mercurius Billings.Cyrtocerina Mercurius Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 194,text fig. 179.Canadian (Levis) : Point Levis, Quebec.Cyrtocerlna(?) schoolcraftl Clarke.Cyrtocerina(?) schoolcrafti Clarke, Geol. Minnesota, 3, pt. 2 1897 p. 774, pi. 47figs. 12-14.Black River (Decorah): Near Cannon Falls, Minnesota.Holotype: Cat. No. 46526, U.S.N.M.Cyrtocerina typica Billings.Cyrtocerina typica Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 178, textfig. 159.?Miller, N. A. Geol. Pal., 1889, p. 436, fig. 732.Black River (Leray): Pauquette Rapids, Ottawa River, Canada.CTRTODONTA Billings. Genotype: C. rugosus and C. canadenso Billings.Cyrtodonta Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 179;Canadian Nat. Geol., 3, 1858, p. 431; ibid., 4, 1859, p. 303; ibid., 6, 1861, p.353; ibid., 7, 1862, p. 392.?Meek and Worthen, Geol. Surv. Illinois, 3, 1868,p. 310.?Zittel, Handb. Pal., 2, 1881, p. 50.?Salter, Mem. Geol. Surv. Great BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 359CTRTODONTA?Continued.Britain, 2d ed., 1881, p. 546.?Ulrich, Geol. Minnesota, Pal., 3, pt. 2, 1894,p. 534.?Ball, Zittel-Eastman Textb. Pal., 1, 1900, p. 3G5.?Koken, DieLeit-fossilien, Leipzig, 1896, p. 185, fig. 151, 2.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 980.'?Grabau and Shimer, N. A. IndexFossils, 1, 1909, p. 409.?Dall, Zittel-Eastman Textb. Pal., 2d ed., 1913,p. 442.Palaearca Hall, Pal. New York, 3, 1859, p. 27.?Salter, Mem. Geol. Sui-v. GreatBritain, 3, 1866, p. 341.?Meek and Worthen, Geol. Surv. Illinois, 3, 1868,p. 310, footnote.?Salter, Cat. Camb. Sil. Foss., 1873, p. 60.Angellum Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 105 (Genotype: A.cuneatum Miller).Cypricardites Vanuxem (not Conrad), Nat. Hist. New York, Geol. 3, 1842, p. 65,footnote.?Hall, Pal. New York, 1, 1847, p. 157 footnote; 12th Rep. NewYork State Cab. Nat. Hist., 1859, pp. 9, 13; Pal. New York, 3, 1859, p. 270,footnote; p. 524; 15tli Rep. New York State Cab. Nat. Hist., 1861, pp. 192,193, pi. 11, fig. 4.?Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 309.?Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 134.?Miller, Cincinnati, Quart.Jour. Sci., 1, 1874, p. 147.?Nettelroth, Kentucky Foss. Shells, Geol. Surv.Kentucky, 1889, p. 206.?Miller, N. A. Geol. Pal., 1889, p. 476.?Miller andFaber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894, pp. 29-31.Observation.-?See Bodmania Miller for a probable synonym.Cyktodonta (part) Safford. See Modiolodon Ulrich.Cyhtodonta acutumbona Billings. See Vanuxemia acutumbona.Cyrtodonta afflnis Ulrich.Cyrtodonta affinis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 540, pi. 39, figs. 20-23.Cypricardites affinis Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.).Black River (Decorah): Six miles south of Cannon Falls, Minnesota.Holotype.?Cat. No. 46171, U.S.N.M.Cyrtodonta afiBnis flllmorensis Ulrich.Cyrtodonta affinis var. fillmorensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 540,pi. 39, fig. 23.Trenton (Prosser): Near Wykoff, Fillmore County, Minnesota.nolotype.?C&t. No. 46172, U.S.N.M.Cyrtodonta? alata (Hall).Posidonia? alata Hall, Geol. Rep. 4th Dist. New York, 1843, p. 72, fig. 7; Pal.New York, 2, 1852, p. 87, pi. 27, fig. 4.?Lesley, Geol, Surv. Pennsylvania,Rep. P 4, 1889, p. 737, fig.Posidonomya alata Miller, N. A. Geol Pal., 1889, p. 504 (gen. ref.).Clinton: Rochester, New York.Cyrtodonta ampla Ulrich.Cyrtodonta ampla Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 538, pi. 39, fig. 34.Cypricardites amplus Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.).Black River (Platteville): Cannon Falls, Minnesota.ITolotype?Cat. No. 40173, U.S.N.M.Cyrtodonta? anticostiensis Billings.Cyrtodonta? Anticostiensis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1806, p. 14.Cypricardites anticostiensis Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).Richmond (English Head and Charluton): lOii'^lish Head, Anlicosti. 360 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Cyrtodonta billingsi Ulrich.Cypricarditea ventricosus Whitfield (not Hall), Geol. Winconsin, 4, 1882, p. 209,pi. 5, fig. 9.Cyrtondonta billingsi Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 538, pi. 40,figs. 2-6.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 166, pi. 11, fig. 7.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 409, figs. 528d, e.Black River: Dunleith, Illinois; Beloit, Mineral Point, etc., Wisconsin; CannonFalls, etc., Minnesota (Platteville); Lincoln County, Missouri (Decorah);New Jersey (Jacksonburg).Cotypes.?Cat. Nos. 46174, 46175, U.S.N.M.Cyrtodonta breviuscula Billings.Cyrtodonta breviuscula Billings, Canadian Nat. Geol., 4, 1859, p. 446.?^Whiteaves,Ottawa, Nat., 22, 1908, p. 107, pi. 3, fig. 3.Cypricardites breviuscula Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).Stones River (Pamelia): Near Ottawa, Ontario.Cyrtodonta canadensis BilHngs.Cyrtodonta Canadensis Billings, Canadian Nat. Geol., 3, 1858, p. 434, figs. 8-11;Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 182, figs. 8-10; p. 183, fig.11; Geol. Canada, Geol. Surv. Canada, 1863, p. 148, fig. 106.?WTiiteaves, Pal.Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 241.?Weller, Geol. Surv. NewJersey, Pal., 3, 1903, p. 167, pi. 11, fig. 3.Cypricardites canadensis Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).Black River: St. Josephs Island, La Petite Chaudiere Rapids, PauquetteaRapids, and Lake Winnipeg, Canada; New Jersey.Cyrtodonta canadensis Grabau and Shimer. See Megalomus canadensis.Cyrtodonta cingulata (Ulrich).Cypricardites cingulata Ulrich, 19th Ann. Rep. Geol. and Nat. Hist. Surv. Min-nesota, 1892, p. 235, fig. 21.Cyrtodonta cingulata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 545, pi. 40, figa. 7, 8.Black River (Decorah): ]\Iinneapolis, Minnesota.Holotype?Cat. No. 46176, U.S.N.M.Cyrtodonta clochensis Foerste.Cyrtodonta clochensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 297,pi. 2, figs. 6a-b.Black River (Lowville): La Cloche Peninsula, Ontario.Cyrtodonta cordiformis Billings. See Plethocardia? cordiformia.Cyrtodonta cuneata (Miller).Angellum cuneatura Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 106, pi.3, fig. 11; N. A. Geol. Pal., 1889, p. 4G2, fig. 774.Cyrtodonta cuneata Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 999, pi. 45, fig. 2.Richmond (Whitewater): Richmond, Indiana.Cyrtodonta descriptus (Sardcson).Cypricardites de.scriptus Sardeson, Bull. Minneaota Acad. Nat. Sci., 4, 1896, p. 70,pi. 2, fig. 2.St. Peter: Highland Park, Minnesota.Cyrtodonta dignus (Sardeson).Cypricardites dignus Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 71,pi. 2, figs. 4, 5.St. Peter: South St. Paul, Minnesota. BlBLlOlilUPIlIC LIST OF GENERA AJS'U SrEClES. 3G1Cyrtodonta Emma Billings. See Rhytimya emma.Cyrtodonta? fcrruginea (Flail and WTiitfield).Cypricai'dites ferrugineum Hall and "WTiitfield, Geol. Surv. Ohio, Pal., 2, 1875,p. IIG, pi. 5. fig. 11.?Foerste, Bull. Sci. Lab. Deuison Univ., 1, 1885, p. 93.Avicula whitfieldi, Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 558, pi. 37, fig. 5.Upper Medinan (Brassfield): Near Wilmington, Ohio.PJastotype.?Cat. No. 46544, U.S.N.M.Cyrtodonta flnitima (Sardeson).Cypricardites finitimus Sardeson, Ihill. M-innesota Acad. Nat. Sci., 4, 1896, p. 70,pi. 2, fig. 6.St. Peter: Highland Park, Minnesota.Cyrtodonta Ganth Safford. See Modiolodon ganti.Cyrtodonta gibbera Ulrich.C\Ttodonta gibbera Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 542, pi. 39, figs.13-15.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 162, pi. 13, figs. .34, 36.Trenton: Thii-teen miles south of Cannon Falls, Minnesota (Prosser); BafiinLand.Holotype.?CAt. No. 46177, U.S.N.M.Cyrtodonta glabella (Ulrich).Cypricardites glabella Ulrich, 19th Ann. Rep. Geol. and Nat. Hist. Surv. Minne-sota (March), 1892, p. 234, fig. 20.Cyrtodonta glabella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 543, pi. 39, figs.37, 40.CjTpricardites minnesotensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 3 (April),1892, p. 338, pi. 6, fig. 21.Black River: Minneapolis, Minnesota (Platteville and Decorah); Beloit, Wis-consin, and Dunleith, Illinois (Platteville).Holotype and plesiotype.?C-At. Nos. 46178-46180, U.S.N.M.Cyrtodonta grandls (UMch).Cypricardites grandis Ulrich, Amer. Geol., 6, 1890, p. 387, figs. 19a-c.Cyrtodonta grandis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 547, pi. 40, fig. 11,fig. 43a-i.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 409, fig. 529.Trenton: Between Burgin and Danville, Kentucky; Cannon Falls, Kenyon, etc.,Minnesota; Decorah, Iowa; Oshkosh, Wisconsin.Cotypes and plesiotypcs.?Cat. Nos. 46182, 46859, U.S.N.M.Cyrtodonta grandis germana (Ulrich).Cypricardites germanus Ulrich, 19th Ann. Rep. Geol. and Nat. Hist. Surv.Minnesota, 1892, p. 236, fig. 22.Cyrtodonta grandis var. germana Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 549,pi. 40, figs. 9, 10, 12, fig. 43j.Trenton: Between Burgin and Danville, Kentucky; Cannon Falls, etc.. Minne-sota; Iowa; Wisconsin.Holotype and plesiotype.?CsX. Nos. 46181, 46862, U.S.N.M.Cyrtodonta grandis Intermedia Ulrich.Cyrtodonta grandis var. intermedia Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 549,fig. 43k^Trenton (Catheys): Haynie's Mill, central Tennessee.Cotype.?Cat. No. 46183, U.S.N.M. 3G2 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Cyrtodonta grandis luculenta (Sardeson).Cypricardites luculentus Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p.338, pi. 6, figs. 25, 26.Cyrtodonta grandis var. luculenta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 549,pi. 40, figs. 13, 14.Richmond (Maquoketa): Granger, Bristol, etc., Minnesota.Cyrtodonta halli (Nettelrotli).Cypricardites halli Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky,1889, p. 206, pi. 34, figs. 1-6.Cyrtodonta halli Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 541 (gen. ref.).Richmond: Oldham County, Kentucky.Coty-pes.?Qii.t. No. 51342, U.S.N.M.Cyrtodonta? harrietta Billings.Cyrtodonta harrietta Billings, Pal. Foss., Geol. Surv. Canada, 1865, p. 149, fig.129 (adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Suxv. Canada, 1866,p. 13 (loc. ref.).Cypricardites harrietta Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).Richmond (English Head and Charleton): English Head, Anticosti.Cyrtodonta hayniana Safford. See Vanuxemia hayniana.Cyrtodonta hindi Billings. See ^^^litella hindi.Cyrtodonta liiironensis Billings.C>Ttodonta huronensis Billings. Geol. Surv. Canada, Rep. Progr. for 1857, 1858,p. 180, figs. 3, 4; Canadian Nat. Geol., 3, 1858, p. 432, figs. 3, 4; Geol. Canada,Geol. Surv. Canada, 1863, p. 147, figs. 102 a, b.?Baasler, Bull. Virginia Geol.Surv., 2a, 1909, pi. 23, figs. 1-3.Palsearca ventricosa Hall (not Hall, 1847), Pal. New York, 3, 1859, pp. 270, 271,figs. 1-3; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 10, figs. 1-3.Cypricardites huronensis Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).Cypricardites islandicus Hall in Miller, N. A. Geol. Pal., 1st ed., 1877, p. 189.Cyrtodonta subovata Ulrich, Geol. Minnesota, 3, 1894, p. 536, pi. 39, figs. 28, 29,31-33?, 30, ?45.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 410,fig. 528a-c.Cypricardites subovatus Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.).Black River: Near Point Palladeau and St. Joseph Island, Lake Huron; PointClaire, island of Montreal, Canada; High Bridge, Kentucky; Tennessee andVirginia (Lowville); St. Paul and Cannon Falls, Minnesota (Decorah).Plesiotypes.?Csit. Nos. 46192, 46849, etc., U.S.N.M. (cofypes of C. subovata).Cyrtodonta Huronensis var. subcarinata Chapman. See Cyrtodonta subcarinata.Cyrtodonta? Insularls Billings.Cyrtodonta? insularis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 14.Cypricardites insularis Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.).Richmond (English Head): West End, Anticosti.Cyrtodonta janesvlllensis Ulrich.Cyrtodonta janesvlllensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 537, pi. 39,figs. 26, 27.Black River (Platteville): Janesville and Beloit, Wisconsin. BIBLIOGRAPHIC LIST OF GENERA AND BPECIES. 363Oyrtodonta? lamellosa Hudson.Cyrtodonta? lamellosa Hudson, LUiU. New York State Mus., 80, 1905, p. 287, pi. 4,figs. 10-13.Chazyan (Valcour): Valcour Island, Lake Champlain.Cyrtodonta leucothea Billings.Cyrtodonta Leucothea Billings, Pal. Foss., 1, Geol. Surv. Canada, 1805, p. 46, fig.49 (adv. sheets, 18G2); Geol. Canada, Geol. Siu^. Canada, 18(J3, p. 143, fig. 82.Cypricardites leucothea Miller, N. A. Geol. Pal., 1889, p. 477 (gon. ref.).Black River (Leray): Pauquette Rapids, Ottawa River, Canatla.Cyrtodonta normanensis Safford.Cyrtodonta Normanensis Safford, Geol. Tennessee, 1869, p. 287 (nom. nud.).Mohawkian: Tennessee.Cyrtodonta obesa Ulrich.(Vrtodonta obesa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 542, pi. 39, figs. 10, 11,12.Black River: Mercer County, Kentucky; St. Paid and Preston, Minnesota(Decorah).Cotypes?Cat. Nos. 46184, 46185, U.S.N.M.Cyrtodonta obliqua (Meek and Worthen).Cypricardites obliquus Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 311,pi. 2, fig. 9a, b.Cyrtodonta obliquus Ulrii-h, Geol. Minnesota, 3, pt. 2, 1897, p. 540, p. 39, figs.35, 36.Trenton: Scales Mound, Illinois (Galena); Fillmore County, Minnesota (Prosser).Cyrtodonta obtusa (Hall).Ambonychia obtusa Hall, Pal. New York, 1, 1847, p. 167, pi. 36, figs. 8a-b.Cyrtodonta obtusa Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 184,figs. 13, 14; Canadian Nat. Geol., 3, 1858, p. 436, figs. 13, 14; Geol. Canada,Geol. Sui-v. Canada, 1863, p. 147, fig. 101a, b.Posidonomya obtusa Emmons, Amer. Geology, 1, pt. 2, 1855, p. 177.Palseai-ca obtusa Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 65(gen. ref.).Cypricai-dites obtusus Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.).Trenton: Watertown, New York; Canada.Cyrtodonta oviformis (Ulrich).Cypricardites oviformis Ulrich, Amer. Geol., 10, 1892, p. 99, pi. 7, figs. 3, 4.Cyrtodonta oviformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 544, pi. 39, fig. 46;pi. 40, fig. 1.Black River (Platteville): Janesville, Wisconsin.nolotype.?Ca.t. No. 46186, U.S.N.M.Cyrtodonta parva Ulrich.Cyrtodonta liarvaUlricli, Geol. Minnesota, 3, pt. 2, 1894, p. 541, pi. 39, figs. 24, 25.Trenton (Prosser): Near Fountain, Minnesota.Holotype.?Cat. No. 46187, U.S.N.M.Cyrtodonta persimilis Ulrich.Cyrtodonta persimilis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 544, pi. 39, figs.41, 44.Cypricardites persimilis Miller, N. A. Geol. Pal., 1897, p. 781 (gen. ref.).Black River (Platteville): Minneapolis, Minnesota; Beloit, Wisconsin.Cotypes.?Cat. Nos. 46188, 46189, U.S.N.M. 364 BLTLI.ETIN 92, UNITED STATES NATIONAL MUSEUM.Cyrtodonta? plkbeia Billings. See Whitella i)lebeia.Cyrtodonta ponderosa Billings.Cyrtodonta ponderosa Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 150(adv. sheets, 18G2).Cypricardites ponderosa Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.),Richmond: Cape Smyth, Manitoulin Island, Lake Huron.Cyrtodonta rotulata Ulrich.Cyrtodonta rotulata Ulrich, Geol. ilinnesota, 3, pt. 2, 1894, p. 541, pi. 39, figs.16-19.Black River: Mercer County, Kentucky; Minneapolis and near Fountain, Min-nesota (Decorah).Coty-pes.?C2,t. Nos. 46190, 46855, U.S.N.M.Cyrtodonta rugosa Billings.Cyrtodonta rugosa Billings, Canadian Nat. Geol., 3, 1858, p. 432, figa. 1, 2; Geol.Surv. Canada, Rep. Progr. for 1857, 1858, p. 179, figs. 1, 2; Geol. Canada,Geol. Surv. Canada, 1863, p. 148, fig. 104a, h.Cypricardites rugosus Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.).Black River: Near Ottawa, Ontario.Cyrtodonta saffordi (Hall).Palajarca saffordi Hall, Pal. NeAV York, 3, 1859, p. 271, fig.s. 4, 5; 12th Rep. NewYork State Cab. Nat. Hist., 1859, p. 11, figs. 4, 5,Cyrtodonta Saffordi Safford, Geol. Tennessee, 1869, p. 287, pi. 2 (F), figs. 2a-g.Cypricardites saffordi Hall and Whitfield, Geol. Surv. Oliio, 2, 1875, p. 177, (gen.ref.).?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 179, figs.Trenton (Catheys): Nashville, etc., Tennessee.Plesiotype.?V&t. No. 46191, U.S.N.M.Cyrtodonta scala Raymond.Cyrtodonta scala Raymond, Annals Carnegie Mus., 3, 1906, p. 578.Chazyan (Crown Point): Valcour Island, New York.Cyrtodonta .sigmoidea Billings. See Whitella? eigmoidea.Cyrtodonta sillimanensi.s Ulrich.Cyrtodonta sillimanensis Ulrich, Proc. U. S. Nat. Mus., 22, 1900, p. 162, pi. 13,figs. 31-33.Mohawkian: Head of Frobisher Bay, Baffin Land.Cotyjyes.?Cat. No. 28159, U.S.N.M."Cyrtodonta solitaria Raymond.Cyrtodonta solitaria Raymond , Amer. Jour. Sci., 20, 1905, p. 373.Chazyan (Crown Point): Near Tracy Brook, Chazy, New York.Cyrtodonta .spinifera Billings.Cyrtodonta spinifera Billings, Canadian Nat. Geol., 3, 1858, p. 435, fig. 12; Geol.SurA\ Canada, Rep. Progr. for 1857, 1858, p. 183, fig. 12.Cypricardites spinifera Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.).Black River (Leray): Pauquette Rapids, and Fourth Chute of Bonnechere,Canada.Cyrtodonta subangulata (Hall).Edmoudia? eubangulata Hall, Pal. New York, 1, 1847, p. 156, pi. 35, fig. 2a, b.Palsearca subangulata Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p.68 (gen. ref.). BIBLIOGKAPHIC LIST OF UENEKA AND SPECIES. 305Cyrtodonta subaiigulata?Continued.CjTlodonta puhangulata Billings, Geol. Sun\ Canada, Kep. Progr. for 1S57, 1858,1>. 185; (\\nadian Nat. Geol., 3, 1858, p. 437.Cypricardites subangulatus Miller, N. A. Geol. Pal., 1889, j). 477 (gen. ref.).Trenton: Watertown, New York.Cyrtodonta subcarinata Billings.Cyrtodonta subcarinata Billings, Canadian Nat. Geol., 3, 1858, p. 433, ligs. 5-7;Geol. tSurv. Canada, Rep. Progr. for 1857, 1858, p. 181, fig. 5-7; Geol. Canada,Geol. Su^^^ Canada, 1863. p. 148, fig. 105.Cj'pricardites subcarinata Miller, N. A. Geol. Pal., 1889, p. 477 (geu. ref.).Cyrtodonta Huronensis var. subcarinata Chapman, Canadian Jour., n. s., 7, 1862,p. 117, fig. 112; Expos. Min. Geol. Canada, 1864, p. 120, fig. 112.Black River: Pointe Claii-e and Valley of the Ottawa, Canada.Cyrtodonta subovata Ulrich. See Cyrtodonta huronensis.Cyrtodonta kubtruncata Billings. See Wliitella sul)truncata.Cyrtodonta tenella (Ulrich).Cj'pricarditea tenellus Uhich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minn., 1892,p. 237, fig. 23.CjTtodonta tenella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 546, pi. 40, fig. 15-19.Black River (Decorah): Six miles south of Cannon Falls, Minnesota.Cotypes.~Cat. No. 46193, U.S.N.M.Cyrtodonta tranceps Raymond. See Endodesma tranceps.Cyrtodonta undulostriata Grabau and Shinier. See Cj^jricardinia undulostriata.Cyrtodonta? ungulata Billings. See Vanuxemia ungulata.Cyrtodonta Winchelli Safford. See Modiolodon winchelli.CYRTOGRAPTUS Carruthers. Genotype: C. murchisoni Carruthers.Cyrtograpsua Cainithers, Rep. 37th meeting British Assoc. Adv. Sci., Notes andAbstracts, 1868, p. 57; Geol. Mag., 5, 1868, pp. 73, 127.Cyrtograptus Lapw^orth, Geol. Mag., dec. 2, 3, 1876, p. 544.?Zittel, Handb. Pal.,1, 1879, p. 297.?Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896,p. 267.?Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief, 1897,p. 650.?Koken, Die Leitfossilien, Leipzig, 1896, p. 328.?Ruedemann,Mem. New York State Mus., 11, pt. 2, 1908. p. 459.Cyrtograptus iilrichi Ruedemann.CjTtograptua ulrichi Ruedemann, Mem. New York State Mus., IJ, pt. 2, .1908,p. 459, pi. 29, fig. 4, figs. 442, 443.Niagaran (Bainbridge): Bainbridge, Cape Girardeau County, Missouri.Cotypes.?Cat. No. 54273, U.S.N.M.CvRTOLiTES (part) of authors. See Oxj-discus Koken, Phragmolites Conrad andCyrtolitina Ulrich.CTRTOLITES Conrad. Genotype: C. ornatus Conrad.Cyrtolites Conrad, Ann. Rep. Nat. Hist. Surv. New York, 1838, p. 118.?Hall(part), Pal. New York, 1, 1847, p. 189 footnote.?D'Orbigny, Prodr. de Pal.,1, 1849, p. 9.?Woodward, Man. Mollusca, pt. 2, 1854, p. 201.?Emmons,Amer. Geology, ] , pt . 2, 1855, p. 166.?Hall, 15th Rep. New York State Cab.Nat. Hist., 1862, pi. 11, fig. 19.?Miller, Cincinnati Quart. Jour. Sci., 1,1874, p. 308.?Waagen (part). Pal. Indica (13), pt. J, 1880, p. 132.?Liud- 366 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. .CTRTOLITES?Continued.Strom, KongL Sven. Vet.-Akad. Handl., 19, No. 6, 1881, pp. 70, 81.?Zittel,Handb. Pal., 2, 1882, p. 185.?Koken, Neues Jahrb. f. Min., GeoL, Pal., 6,Beliage-Band, 1889, pp. 393, 467.?Miller, N. A. Geol. Pal., 1889, p. 401.?Matthew, Trans. Royal Soc. Canada, 11, sec. 4, 1894, p. 93.?Koken, DieLeitfossilien, Leipzig, 1896, p. 100; Neues Jahrb. f. Min., Geol., Pal., 1, 1898,p. 4.; Bull, de I'Acad. Imp. Sci. 8t. Petersburg, 7, 1897, p. 138.?Ulrich andScofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 846-858.?Pilsbry, Zittel-East-man Textb. Pal., 1, 1900, p. 445.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 949.?Grabau and Shimer, N. A. Index Fossils, 1,1909, p. 609.?Dall. Zittel-Eastman Tcxtb. Pal., 2d ed., 1913, p. 522.Cyrtolites acutus Emmons. See Sinuites cancellata acutus.Cyrtolites carinatus Miller.Cyrtolites carinatus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 311, fig. 32;N. A. Geol. Pal., 1889, p. 401, text fig. 667.?Ulrich and Scofield, Geol. Minne-sota, 3, pt. 2, 1897, p. 862, pi. 62, figs. 50-52.?Grabau and Shimer, N. A.Index Fossils 1, 1909, p. 610, figs. 815 e-g.Eden (Southgate): Cincinnati, Ohio, and vicinity.Plesiotypes.?Q'dt. No. 45783, U.S.N.M.Cyrtolites compressus Hall. See Phragmolites compressus.Cyrtolites conradi Hall.Cyrtolites conradi Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 35, fig. 6.Richmond (Maquoketa): Southwestern Wisconsin.Cyrtolites costatus James. See Dyeria costata.Cyrtolites cristatus Safford. See Oxydiscus cristatus.Cyrtolites desideratus Billings. See Phragmolites desideratus.Cyrtolites? dilatatus Ulrich and Scofield.Cyrtolites(?) dilatatus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.865, pi. 62, figs. 20-26.Black River (Decorah): Goodhue County, Minnesota; Beloit, Wisconsin.Cotype.?C&t. No. 45784, U.S.N.M.Cyrtolites disjunctus Ulrich and Scofield.Cyrtolites disjunctus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, i>. 864,pi. 62, figs. 48, 49.Richmond (Maquoketa): Near Spring Valley, Minnesota.Holotype.?Gat. No. 45785, U.S.N.M.Cyrtolites dyeiu of authors. See Phragmolites dyeri and P. elegans.Cyrtolites uyeri var. cellulosa Ulrich and Scofield. See Phragmolites dyericellulosus.Cyrtolites elegans Miller. See Phragmolites elegans.Cyrtolites filosus Hall. See Cyrtoceras filosum.Cyrtolites fimbrlatus Miller. See Phragmolites fimbriatus.Cyrtolites imbricatus Meek and Worthen. See Phragmolites imbricatus.Cyrtolites (Microceras) inornatus Meek. See Microceras inornatum. BIBLIOGKAPHIC LIST OF GENEKA AND SPECIES. 367Cyktolites MAGNUS Miller. See Oxydiscus maguus.Cyrtolites nitidulus Ulrich. See Cyrtolitina nitidula.Cyrtolltes ornatus Conrad.Cyrtolites ornatus Conrad, Ann. Geol. Rep. New York, 1838, p. 118; ibid., 1839,p. 63; ibid., 1841, p. 37.?Vamixem, Nat. Hist. New York, Geol. Rep., 3, 1842,pp. 64, 65, fig. 2.?Owen, Amcr. Jour. Sci. Arts, 47, 1844, p. 376, fig. 2.?Hall Pal. New York, 1, 1847, p. 308, pi. 84, figs, la-g.?Billings, CanadianNat. Geol., 1, 1856, p. 43, fig. 6.?^Rogers, Geol. Pennsylvania, 2, pt. 2, 1858,p. 820, fig. 619.?Chapman, Canadian Jour., new ser., 7, 1862, p. 119, fig.119; 8, 1863, p. 206, fig. 207.?Billings, Geol. Canada, Geol. Surv. Canada,1863, p. 217, fig. 226.?Chapman, Expos. Min. Geol. Canada, 1864, p. 123,fig. 119; p. 178, fig. 207.?Meek, Pal. Ohio, 1, 1873, p. 148, pi. 13, figs. 3a, b.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 308.?Roemer, Leth.geog.,1,Leth. Pal., Atlas, 1876, pi. 5, fig. 8a.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 182, figs.?Miller, N. A. Geol. Pal., 1889, p. 402, fig. 669.?Koken, Neues Jahrb. f. Min., Geol., Pal., 6, Beilage-Band, 1889, p. 483, pi. 13,fig. 3.?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 860, pi. 62,figs. 27-29.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 962, pi. 40, figs. 8, 8a.?Grabau and Shimer, N. A. Index Fossils, 1, 1909,p. 609, fig. 815a, b.Porcelia ornata Sharpe, Quart. Jour. Geol. Soc. London, 4, 1847, p. 181.?Em-mons, Amer. Geology, 1, pt. 2, 1855, p. 167, pi. 17, fig. 21; Man. Geology,1860, p. 102, fig. 7 only.Maysville and Richmond: Oswego County, etc.. New York (Pulaski); Canada;Pennsylvania to Alabama; Ohio Valley; etc.Pksiotypes.?Cat. Nos. 17898, 45786, U.S.N.M.Cyrtolites ornatus minor Ulrich and Scofield.Cyrtolites ornatus var. minor Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 860, pi. G2, figs. 30-31.?Weller, Geol. Sur\'. New Jersey, Pal., 3, 1903, p.174, pi. 12, figs. 6, 7.Trenton: Cannon Falls, Minnesota (Prosser); New Jersey.Hololype.?CoX. No. 45787, U.S.N.M.Cyrtolites pannosus Billings. See Phragmolites pannosus.Cyrtolites parvus Ulrich.Cyrtolites parvus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 864, pi. 62, figs. 45-47.Trenton (Upper): Covington, Kentucky. 'Holotype?Cat. No. 45788, U.S.N.M.Cyrtolites retrorsus Ulrich and Scofield.Cyrtolites retrorsus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 861,pi. 62, figs. 32-37.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 610,fig. 815c, d.Trenton: Near Burgin, Covington, etc., Kentucky; Nashville, etc., Tennessee.Cotypes.?Cat. Nos. 45789, 45790, U.S.N.M.Cyrtolites retrorsus flllmorensis Ulrich and Scofield.Cyrtolites retrorsus var. fillmorensis Ulrich and Scofield, Geol. Minnesota, 3, pt.2, 1897, p. 802, pi. 62, figs. 38, 39.Black River (Decorah): Chatfield and near I'ountain, Minnesota: Lincoln County,Missouri.Cotypef.?Cdt. No. 45791, U.S.N.M. 368 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.CyrtoUtes sinuatus Hall and ^Vhitfield.Cyitolites sinuatus Hall and Wliitfield, U. S. Geol. Expl. 40th Pari., 4, 1877, p.237, pi. 1, figs. 23, 24.?Weller, Geol. Hui-v. New Jersey, Pal., 3, 1903, p. 127,pi. 4, fig. 9.Ordovician : WTiite Pine DiKtrict, Kevada ( Upper Pogonip) ; Columbia, New Jersey(Beekmantown).Holotype.?Cat. No. 173G3, U.S.N.M.CyrtoUtes sinuosiis Ilall.Cyrtolites sinuosus Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1877, pi. 30, figs. ]f)-18; mus. ed., 1879, p. 178, pi. 30, figs. 16-18; 11th Ann.Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 321, pi. 31, figs. 16-18.Niagaran (Waldron): Waldron, Indiana.Cyrtolites subacutus Miller. See Oxydiscus subacutus.Cyrtolites subcarinatus Emmons. See Carinaropsis carinata.Cyrtolites subcompressus Meek. See Microceras inornatum.Cyrtolites subplanus Ulrich.Cyrtolites subplanus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 846, pi. 62, figs.40-44.Trenton (Catheys): Nashville, Tennessee.Cotypcs?Cat. No. 45792, U.S.N.M.Cyrtolites Trentonensis Conrad. See Eccyliomphalus trentonensis.Cyrtolites youngi Foerste.Cyrtolites Youngi Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 289, pi. 6,fig. 7; Geol. Surv. Ohio, Pal., 8, 1893, p. 549, pi. 31, figs. 7, 7a.Upper Medinan (Brassfield): Hanover, Indiana.CTRTOLITINA Uhich. Genotype: Cyrtolites lamellifer Lindstrom.Cyrtolites Uhich (part). Jour. Cin. Soc. Nat. Hist., 2, 1879, p. 12.?Lindstrom,Silurian Gastropoda of Gotland, 1884, pp. 82-84.Cyrtolitina Uhich, Geol. Minnesota, 3, pt. 2, 1897, pp. 847-866.?Dall, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 521.Cyrtolitina nitidula (Uhich).Cyrtplites nitidulus Ulrich, Jour. Cin. Soc. Nat. Hist., 2, 1879, p. 12, pi. 7, figs.7, 7a.Cyrtolitina nitidula Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 866, pi. 62, figs. 53-55.Trenton (Upper): River quarries, Covington, Kentucky.floZoiJ/pe.?Cat. No. 45793, U.S.N.M.Cyrtometopus scofieliji Clarke. See Cerauriuus scofieldi.CTRTORIZOCERAS Hyatt. Genotype: CjTtocc-ras minncapolis Clarke.Cyrtorizoceras Hyatt, Zittel-Eastman Textb. Pal., 1900, p. 529; ibid, 2d ed.,1913, p. 610.Cyrtorizoceras curvicaiueratum Clarke and Ruedemann.Cyrtorhizoceras curvicameratum Clarke and Ruedemann, Mem. New YorkState Mus., 5, 1903, p. 90, pi. 17, figs. 1-10.Niagaran (Lockport-Guelph): Shelby, New York. BIBLIOGRAPHIC LIST OF GENEKA AND SPECIES. 369Cyrtorlzoceras dardanum (Hall).Cyrtoceras dardanum Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 43; 20tliRep. New York State Cab. Nat. Hist., 1868 (extras Jan., 1865), p. 349, pi.17(8), figs. 3-5; rev. ed., 1870, p. 406, pi. 17, figs. 3-5.?Meek and Worthen,Geol. Surv. Hlinois, 6, 1875, p. 506, pi. 25, figs. 6a, b.Cyrtoceras Fultonensis Meek and Worthen, Geol. Surv. Illinois, 6, 1875, p. 506.Cyrtorhizoceras dardanus Clarke and Ruedemann, Mem. New York State Mus.,5, 1903, p. 91 (gen. ref.).Niagaran: Waukesha, Wisconsin (Racine); Fulton City, Illinois.Cyrtorizoceras fosteri (Hall).Cyrtoceras fosteri Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 41.?Winchelland Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 102.?Hall, 20th Rep.New York State Cab. Nat. Hist., 1868 (extras Jan., 1865), p. 349, pi. 16(7),figs. 11-13; rev. ed., 1870, p. 406, pi. 16, figs. 11-13.Cyrtorhizoceras fosteri Clarke and Ruedemann, New York State Mus., 5, 1903,p. 91 (gen. ref.).Niagaran (Racine): Chicago, Illinois; Wisconsin.Cyrtorizoceras isodorus (Billings).Cyrtoceras Isodorus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 175, fig.157a, b.Black River: St. Joseph Island, Lake Huron.Cyrtorizoceras minneapolis (Clarke).Cyrtoceras minneapolis, Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 808, pi. 59,figs. 1-8.Cyrtorizoceras minneapolis Hyatt, Zittel-Eastman Textb. Pal., 1900, p. 529(gen. ref.).Black River (Platteville) : Minneapolis, Minnesota.Cotype.?Cat. No. 46525, U.S.N.M.CTRTOSPIRA Ubich.Genotypes: C. tortilis Ulrich and Subulites ventricosus Hall.CjTtospira Uhich, Geol. Minnesota, 3, pt. 2, 1897, p. 1073.Cyrtospira abbreviata (Hall).Subulites abbreviata Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850,p. 180, pi. 3, fig. 2a-c; doc. ed., p. 172.Cyrtospira abbreviata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070(gen. ref.).Trenton: Near Watertown, New York.Cyrtospira attenuata Ruedemann.Cyrtospira attenuata Ruedemann, Bull. New York State !Mus., 49, 1901, p. 35,pi. 2, fig. 8.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.Cyrtospira bicurvata Ulrich.Cyrtospira bicurvata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1074, pi. 81,figs. 21, 22.Black River (Lowville) : High Bridge, Kentucky.Holofype.?Cat. No. 45794, U.S.N.M.84243??Bull. 92?15 24 370 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cyrtospira notata (Billings).Subulites notatus Billings, Cat. Sil. Fossils, Anticosti, Geol. Surv. Canada, 1866,p. 54.Cyrtospira notatus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070,(gen. ref.).Anticostian (Ellis Bay) : Junction Cliff, Anticosti.Cyrtospira parvulus (Billings).Subulites par\ ulus Billings, Pal. Fossils, 1, Geol. Sur\-. Canada, 1865, p. 36 (adv-sheets, 1862).Cyrtospira parvuhis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070(gen. ref.).Black Ri^er (Leray): Pauquette Rapids, Ottawa River and near L'Original,Canada.Cyrtospira raymondi (Hudson).Subulites raymondi Hudson, Bull. New York State Mus., 80, 1905, p. 293, pi. 4,figs. 1, 2.Cyrtospira raymondi Raymond, Ann. Carnegie Mus., 4, 1908, p. 210, pi. 54, figs.14, 15.Chazyan (Crown Point, Valcour): Valcour Island and Chazy, New York.Cyrtospira tortilis UMch.Cyrtospira tortilis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1074, pi. 81, figs.24, 25.Subulites tortilis Miller, N. A. Geol. Pal., 2d App., 1897, p. 770 (gen. ref.).Stones Ri\er (Murfreesboro) : Murfreesboro, Tennessee.Eolotype?Cat. No. 46053, U.S.N.M.Cyrtospira ventricosa (Hall).Subulites ventricosa Hall, Pal. New York, 2, 1852, p. 347, pi. 83, fig. 7a, b.?Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 339, fig. 346.?Hall, 20thRep. New York State Cab. Hist., 1868, p. 346, pi. 15 (6), fig. 1; rev. ed. (1870),p. 398, pi. 15, fig. 1; p. 433.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875,p. 71, pi. 3, fig. 5; Quart. Jour. Geol. Soc. London, 31, 1875, p. 549, pi. 26,fig. 5.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, p. 193,pi. 15, figs. 19-21; pi. 18, fig. 58, 59.?Chamberlin, Geol. Wisconsin, 1, 1883,p. 193, fig.?Lesley, Geol. Surv. Pennsjdvania Rep. P 4, 1890, p. 1144, fig. ? T\Tiiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 96.Cyrtospira ventricosa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1073(gen. ref.).?W^iiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 338.Niagaran (Guelph): Gault, etc., Ontario; Wisconsin.Cyrtospira wykoffensis Ulrich and Scofield.Cyrtospira wykoffensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.1074, pi. 81, fig. 23.Subulites wykoffensis Miller, N. A. Geol. Pal., 2d App., 1897, p. 770 (gen. ref.).Trenton (Prosser) : Wykoff, Minnesota.Eolotype?Cat. No. 45795, U.S.N.M.Cyrtotheca corrxjgata Matthew. See Styliola comigata.Gyrtotheca minttta Matthew. See Styliola minuta.Cystaster Hall. See Hemicystitea Hall. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 371CTSTIPHOROLITES Miller. Genotj-pe: Vesicularia major Rominger.Vesicularia Rominger (not Thompson), Geol. Surw Michigan, 3, pt. 2, 1876,p. 135.Cystiphorolites Miller, N. A. Geol. Pal., 1889, p. 183.?Sherzer, Amer. Geol., 7,1891. pp. 290-301.Cystiphorolites major (Rominger).Vesicularia major Rominger, Geol. Sur\-. Michigan, 3, pt. 2, 1876, p. 135, pi. 49,upper tier.Cystiphorolites major Miller, N. A. Geol. Pal., 1889, p. 183 (gen. ref.).Xiagaran: Point Detour; Drummonds Island, Michigan.Cystiphorolites minor (Rominger).Vesicularia minor Rominger, Geol. Sur\-. Michigan, 3, pt. 2, 1876, p. 136, pi. 49,upper tier.Cystiphorolites minor Miller, N. A. Geol. Pal., 1889, p. 183 (gen. ref.).Niagaran: Masonville, Iowa.Cystiphorolites variolosus (Rominger).Vesicularia variolosa Rominger, Geol. Sun,-. Michigan, 3, pt. 2, 1876, p. 136, pi. 49,fig. 4.CystiphoroUtes variolosa Miller, N. A. Geol. Pal., 1889, p. 183 (gen. ref.).Niagaran: Point Detour, Michigan.CTSTIPHTLLUM Lonsdale. Genotype: C. silxiriense Lonsdale.Cystiphyllum Lonsdale in Murchison's SU. Syst., 1839, p. 691.?Dana, Wilkes'U. S. Expl. Exped., 1838-1842, 7, Zoophytes, 1846, p. 360; Amer. Jour. Sci.Arts (2), 1, 1846, p. 186.?Edwards and Haime, Mon. d. Polyp. Foss. d. Terr.,Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), pp. 175, 462.?McCoy, British Pal.Rocks Foss., 1854, p. 32.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 462.?Billings, Geol. Surv. Canada, Rep. Progr. for 1857, p. 178; Canadian Nat.Geol., 3, 1858, p. 430; Canadian Jour., n. s., 4, 1859, p. 136.?Milne-Edwards,Hist. Nat. Corall., 3, 1860, p. 447.?Lindstrom, Geol. Mag., 3, 1866, p. 359.?Dybowski, Archiv. f. Naturf. Liv-, Ehst- und Kurl., 5, 1873, pp. 340, 522.?Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 35.?Rominger, Geol.Surv. Michigan, 3, pt. 2, 1876, p. 137.?Zittel, Handb. Pal., 1, Munich. 1879,p. 234.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 399.?Freeh, Pal. Abh.,Dames and Kayser, bd. 3, Heft 3, 1886, p. 108.?Miller, N. A. Geol. Pal., 1889,p. 183.?Freeh, Palaeontographica, 37, 1890, p. 43.?Sherzer, Amer. Geol., 7,1891, pp. 277, 296-301.?Koken, Die Lcitfossilien, Leipzig, 1896, p. 312.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 126.?Zittel-Eastman Textb.Pal., 1, 1900, p. 79.?Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt 2,1901, p. 190.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 2, 1902, p. 160.?Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 87.Conophyllum Hall, Pal. New York, 2, 1852, p. 114; Amer. Jour. Sci. and Arts, 2dser., 11, 1851, p. 399 (Genotype: C. niagarenso Hall).Cystiphyllum americanum anderdonense Grabau.Cystiphyllum americanum mut. anderdonense Grabau, Michigan Geol. Sur\'.,Geol. Ser., 1, 1909, p. 104, pi. 12, figs. 3-5.Upper Monroan: Detroit River region (Amherstburg) ; Amherstburg, Ontario(Anderdon).Cystiphyllum gemmula Greene.Cystiphyllum gemmula Greene, Cont. Indiana Pal., pt. 2, 1899, p. 12, pi. 6.figs. 8, 9.Niagaran (Louisville) : Louisville, Kentucky. 372 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cystiphyllum granlllneatum Hall.Cystiphyllum granilineatum Hall, 12tli Ann. Rep. Indiana Dep. Geol. Nat. Hist.,1883, p. 274, pi. 15, fig. 13; pi. 23, fig. 13; 35th Rep. New York State Mus.Nat. Hist., p. 418 (ext., 1882, p. 14).?Lesley, Geol. Surv. Pennsylvania, Rep.P 4, p. 184, figs.Niagaran (Louisville): Louisville, Kentucky.Cystiphyllum Huronense Billings. See Cystiphyllum niagarense.Cystiphyllum incurvum Davis.Cystiphyllum incurvum Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky,pt. 2, 1885, pi. 124, figs. 6-8.Niagaran (Louisville): Louisville, Kentucky.Cystiphyllum lineatum Da\T[s.Cystiphyllum lineatum Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt.2, 1885, pi. 128, figs. 1-4.Niagaran (Louisville) : Louisville, Kentucky.Cystiphyllum louisvillense Greene.Cystiphyllum louisvillensis Greene, Cent. Indiana Pal., 1, pt. 6, 1901, p. 45, pi. 16figs. 7-10.Niagaran (Louisville): Louisville, Kentucky.Cystiphyllum maritimum Billings.Cystiphyllum maritima Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 112(adv. sheets, 1862).?Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2,1901, p. 191, pi. 18, figs. 2, 2a.Silurian: L'Anse a la Vieille, Bay of Chaleurs, Quebec.Cystiphyllum niagarense (Hall).Chonophyllum niagarense Hall, Pal. New York, 2, 1852, p. 114, pi. 32, fig. 4a-n.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 190, fig.?Mller, N. A. Geol. Jal.,1889, p. 177, fig. 150.?Sherzer, Bull. Geol. Soc. Amer., 3, 1892, p. 266.?Grabau, Bull. New York State Mus., 45, 1901, p. 139, fig. 32.?Grabau andShimer, N. A. Index Fossils, 1, 1906, p. 62, fig. 92.Cystiphyllum Niagarense Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 138,pi. 49, fig. 3.?Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, pi. 124, figs. 1-5.?Lambe, Ottawa Nat., 12, 1899, p. 224; Cont. Can. Pal.,Geol. Surv. Canada, 4, pt. 2, 1901, p. 190, pi. 16, fig. 7.Cystiphyllum Huronense Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, p. 92.Niagaran: Lockport, etc., New York (Lockport); Louisville, Kentucky (Louis-ville); Drummond Island, etc.. Lake Huron; Wisconsin; Anticosti.Cystiphyllum spinulosum Foerste.Cystiphyllum spinulosum Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 321,pi. 5, figs. la-k.Clinton (Waco): Near Estill Springs, Waco and Panola, Kentucky.CTSTOCRINUS Roemer. Genotype: C. tennesseensis Roemer.Cystocrinus Roemer, Silur. Fauna West Tennessee, 1860, p. 56.?Wachsmuth andSpringer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 404 (Rev. Pal., pt. 2,p. 230).?MUler, N. A. Geol. Pal., 1889, p. 237. BIBLIOGRAPHIC LIST OF GENERA AND Sl'ECIES. 373Cystocrinus teiinesseensis Roemer.Cystocrinus tennesseensis Roemer, Sil. Fauna West Tennessee, Breslau, 1860,p. 5G, pi. 4, figs. 8a-d.?Miller, N. A. Geol. Pal., 1889, p. 237, fig. 279.?Bather, Geol. Mag., dec. 4, 5, 1898, p. 327, fig. 2.?Foerste, Jour. Geol., 11,1903, p. 712.Niagaran (Brownsport): Decatur and Perry Counties, Tennessee.CTSTOSTYLUS Whitfield. Genotype: C. typicus Whitfield.Cystostylus Wliitfield, Ann. Rep. Wisconsin Geol. Surv. for 1879, 1880, p. 63;Geol. Wisconsin, 4, 1882, p. 273.?Miller, N. A. Geol. Pal., 1889, p. 184.?Sherzer, Amer. Geol., 8, 1891, pp. 296-301.Cystostylus infundibulus (Wliitfield).Syriugopora infundibula Whitfield, Ann. Rep. Wisconsin Geol. Surv. for 1877,1878, p. 79.?Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1, 1899,p. 53.?Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p. 35,pi. 1, figs. 6-9.Cystostylus infundibulus ^\^litfield, Geol. Wisconsin, 4, 1882, p. 274, pi. 14, fig.7.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 188, fig.?Whiteaves, Pal. Foss.,Geol. Surv. Canada, 3, pt. 1, 1884, p. 2 (loc. occ); ibid., pt. 2, 1895, p. 49(loc occ).Niagaran: Milwaukee and Wauwatosa, Wisconsin (Racine); Diirham, Ontario,and Shelby, New York (Guelph).Cystostylus typicus Whitfield.Cystostylus typicus Whitfield, Ann. Rep. for 1879, Wisconsin Geol. Surv., 1880,p. 64; Geol. Wisconsin, 4, 1882, p. 274, pi. 14, figs. 8, 9.Niagaran (Racine-Waukesha) : Cato and Stiu"geon Bay, Wisconsin.Cythere baltica Roemer. See Leperditia hisingeri.Ctthere Cincinnatiensis Meek. See Elpe cincinnatiensis.Cythere irregularis Miller. See Elpe irregularis.Cythere subl^vis Shumard. See Leperditia sublsevis.CYTHERELLA Jones. Genotype: C. ovata (Roemer).Cytherella Jones, Mon. Entom. Cret. Form., 1848, p. 28.?Bosquet, Desc. Entom.Foss. Terr. Tert., 1852, p. 10.?Bonnemann, Zeits. d. d. geol. Gesell ., 7,1855, p. 353.?Richter, Zeits. d. d. geol. Gesell., 19, 1867, p. 226.?Jones,Kirkby, and Brady, Mon. Brit. Foss. Biv. Entom. Carb. Form., Pal. Soc,1874, p. 6; ibid., 1884, p. 57, 70.?Zittel, Handb. Pal., 1885, p. 556.?Jonesand Kirkby, Proc. Geol. Assoc. London, 9, 188G, p. 502.?Jones, Ann. Mag.Nat. Hist., 5th ser., 19, 1887, p. 192.?Vogdes, Annals New York Acad. Sci.,5, 1889, p. 4, pi. 2, fig. 4.?Miller, N. A. Geol. Pal., 1st App., 1892, p.707.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 684.?Koken, Die Leitfos-eilien, Leipzig, 1896, p. 40.?Zittel-Eastman Textb. Pal., 1, 1900, p. 646.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, j). 366.?Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 740.Cytherella? rugosa (Jones).Cytheropsis rugosa Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 249, pi. 10,fig. 5; Geol. Surv. Canada, dec. 3, 1858, p. 100.Primitia rugosa Jones and HoU, Ann. Mag. Nat. Hist., 4th ser., 2, 1868, p. 55, foot-note (gen. ref.). 374 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Cytherella? rugosa?Continued.Cytherella? rugosa Jones, Cent. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. S9(gen. ref.).?Ulrich, Geol. IMinnesota, 3, pt. 2, 1894, p. 686, pi. 43, figs. 21-24.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 366, fig. 1666, t, u.Black River (Leray) : Pauquette Rapids, Ottawa River, Canada.Trenton (Prosser) : Near Cannon Falls, Minnesota.Pledotypes.?Q&t. No. 41814, U.S.N.M.Cytherella? rugosa arcta Ulrich.Cytherella? rugosa var. arcta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 686, pi. 43,fig. 25.Trenton (Prosser) : Near Cannon Falls, Minnesota.Holotype.?Cat. No. 41815, U.S.N.M.Cytherella? subrotunda UHch.Cytherella? subrotunda Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 685, pi. 44,fig. 43.Black River (Decorah): Minneapolis, Minnesota.Cttherina alta Conrad. See Leperditia alta and L. jonesi.Cytherina balthica Hisinger (part). See Leperditia hisingeri.Cytherina crenulata Emmons. See Cytheropsis crenulata.Cytherina cylindrica Hall. See Leperditia cylindrica.Cytherina emmonsi Vogdes. See Cytheropsis emmonsi.Cytherina fabulites Conrad. See Leperditia fabulites.Cytherina phaseolus Hisinger. See Leperditia phaseolus.Cytherina spinosa Hall. See .^chmina spinosa.Cytherina subcylindrica Emmons. See Cytheropsis emmonsi.Cytherina subelliptica Emmons. See Cytheropsis subelUptica.CYTHERODON Hall. Genotype: C. nasutus Hall.Cytherodon Hall, 23d Rep. New York State Cab. Nat. Hist., 1873, pi. 14, figs.19-21; Pal. New York, 5, pt. 1, Lam. 2, 1885, p. 53.?Miller, N. A. Geol. Pal.,1889, p. 477.Cytherodon? placidus Billings.Cytherodon? placidus Billings, Pal. Foss., Geol. Su^\^ Canada, 2, pt. 1, 1874,p. 137, pi. 8, fig. 10 (var. pi. 8, fig. 11).Silurian: Arisaig, Nova Scotia.Cytherodon? soclalis Billings.Cytherodon? socialis Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 138,pl.8, fig. 12.Silurian; Arisaig, Nova Scotia.CYTHEROPSIS McCoy. Genotype: C. aldensis McCoy.Cytheropsis McCoy, Ann. Mag. Nat. Hist., 2d ser., 4, 1849, p. 414; Cont. BritishPal.,1854, p. 153; Synopsis British. Pal. Rocks., 1855, pi. 1 L, fig. 2.?Jones, Ann.Mag. Nat. Hist. (3), 1, 1858, p. 248; Geol. Surv. Canada, dec. 3, 1858, p. 98.?Barrande, Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 508.?Miller,N. A. Geol. Pal., 1889, p. 541. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 375Cytheropsis ciNCiNNATiENsis Miller. See Elpe cincinnatiensis.Cytheropsis concinna Jones. See Aparchites concinnus and Primitia muta.Cytheropsis crenulata (Emmons).Cytherina crenulata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 220, figs. 75d, c. ? Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 187, figs.Cytheropsis crenulata Miller, N. A. Geol. Pal., 1889, p. 541 (gen. ref.).Trenton: Middleville, New York.Cytheropsis emmonsi.(Vogde8).Cytherina subcycUndrica Emmons (preoccupied), Amer. Geology, 1, pt. 2, 1855,p. 220, fig. 75b.Cytheropsis subcychndrica Miller, N. A. Geol. Pal., 1889, p. 542 (gen. ref.).Cytherina emmonsi Vogdes, Annals New York Acad. Sci., 5, 1889, p. 13k.Trenton; Middleville, New York.Cytheropsis irregularis Miller. See Elpe irregularis.Cytheropsis rugosa Jones. See Cytherella? rugosa.Cytheropsis siliqua Jones. See Macrocypris? siUqua.Cytheropsis subcylindrica Emmons. See Cytheropsis emmonsi.Cytheropsis subelliptica (Emmons).Cytherina subelliptica Emmons, Amer. Geology, 1, 1855, p. 220, fig. 75a.Cytheropsis subelliptica Miller, N. A. Geol. Pal., 1889, p. 542 (gen. ref.).Trenton: Near Watertown, New York.Cytocrinus Roemer. See Melocrinua Goldfuss.DACTTLOPHYCUS Miller and Dyer. Genotype: D. tridigitatum Miller and Dyer.Dactylophycus Miller and Dyer, Cent, to Pal., 2, 1878, p. 1.?James, Jour. Cincin-nati Soc. Nat. Hist., 7, 1885, p. 164.?Miller, N. A. Geol. Pal., 1889, p. 116.Dactylophycus quadripartitum Miller and Dyer.Dactylophycus quadripartitum Miller and Dyer, Cont. to Pal., 2, 1878, p. 2, pi.3, fig. 1.Eden (Economy): Cincinnati, Ohio, and vicinity.Dactylophycus tridigitatum Miller and Dyer.Dactylophycus tridigitatum Miller and Dyer, Cont. to Pal., 2, 1878, p. 2, pi. 3,fig. 2.?James, Jour. Cincinnati Soc. Nat. Hist., 7, 1885, p. 164.?Miller, N. A.Geol. Pal., 1889, p. 116, fig. 29.Eden (Economy) : Cincinnati, Ohio, and vicinity.D.ffiDALUS Rouault. Genotype: D. newtoni Renault.Daedalus Rouault, Bull. Soc. Geol. France, 2d ser., 7, 1850, p. 736.?Sarle, Proc.Rochester Acad. Sci., 4, 1906, p. 203.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 247.Vexillum Rouault, Bull. Soc. Geol. France, 2d ser., 7, 1850, p. 733 (Genotype:V. labechei Rouault).DsBdalus archimedes (Ringueberg).Arthrophycus sp. Hall, Pal. New York, 2, 1852, p. 6, pi. 2, fig. 2.Spirophyton arcliimedes Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884,p. 144, pi. 2, fig. 1.Taonurus archimedes Miller, N. A. Geol. Pal., 1889, p. 146 (gen. ref.). 376 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Djedalus archimedes?Continued.Daedalus archimedes Sarle, Proc. Rochester Acad. Sci., 4, 1906, p. 20^5.?Grabauand Sliimer, N. A. Index Fossils, 2, 1910, p. 248.Upper Medinan: Lockport, etc.. New York; Pennsylvania; Maryland; Virginia;Tennessee.DALMANELLA Hall and Clarke. Genotype: Orthis testudinaria Dalman.Orthis (group of 0. testudinaria) Hall, Bull. Geol. Soc. Amer., 1, 1889, p. 21.Dalmanella Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 205, 223.?Win-chell and Schuchert, Geol. Minnesota, 3, 1893, p. 439.?Hall and Clarke, 11thAnn. Rep. New York State Geol., 1894, p. 170.?Wysogorski, Zeits. d. d. geol.Gesell., 52, 1900, p. 225.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p.187; Bull. New York State Mus., 45, 1901, p. 187.?Grabau and Shimer, N.,A. Index Fossils, 1, 1907, p. 259.?Cumings, 32d Ann. Rep., Dep. Geol. Nat.Res. Indiana, 1908, p. 888.Dalmanella amcena Schuchert. See Pianodema amoena.Dalmanella arcuaria Hall and Clarke.Dalmanella arcuaria Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 224, 341.pi. 5C, figs. 20, 21.?Foerste, Jour. Geol., 11, 1900, p. 711 (loc. occ).Orthis (Dalmanella) arcuaria Hall and Clarke, 48th Rep. New York State Mus.for 1895, 2, 1897, p. 340, pi. 4, figs. 13, 14; 14th Rep. State Geol. New Yorkfor 1894, 1897, p. 340, pi. 4, figs. 13, 14.Niagaran (Brownsport): Perry County, Tennessee.Dalmanella bassleri Foerste.Dalmanella bassleri Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 215.Trenton (Upper): Carnestown, etc., Kentucky; Florence, Indiana.Dalmanella bellula Hall and Clarke. See Pianodema bellula.Dalmanella breviculus Foerste. See Dalmanella emacerata brevicula.Dalmanella centrilineata (Hall).Orthis centrilineata Hall, Pal. New York, 1, 1847, p. 289, pi. 79, fig. 5.Dalmanella centrilineata Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 260.Cincinnatian (Pulaski): LoiTaine and Turin, New York.Dalmanella clarki Maynard.Dalmanella clarki Maynard, Maryland Geol. Sui-v., Low. Dev., 1913, p. 300, pi.54, figs. 7-10.Helderbergian: (Keyser): Cash Valley, Maryland.Dalmanella concinna (Hall).Orthis concinna Hall, Pal. New York, 3, 1859, p. 172, pi. 10a, figs. 1-3.Dalmanella concinna Hall and Clarke, Pal. New York, 8, 1892, pt. 1, pp. 207,224.?Maynard, Maryland Geol. Surv., Low Dev., 1913, p. 301, pi. 54, figs.11-13.Helderbergian (Keyser): Cumberland, etc., ]\Iaryland; Keyser, West Virginia;Pleasant Valley and Hyndman, Pennsylvania.Dalmanella corpulenta (Sardeson).Orthis corpulenta Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 330, pi.5, figs. 8-10; Amer. Geol., 19, 1897, p. 101, pi. 4, figs. 11-19.Orthis (Dalmanella) testudinaiia var. meeki Winchell and Schuchert (not Miller),Geol. Minnesota, 3, 1893, p. 445, pi. 23, figs. 25-29.Richmond (Maquoketa) : Granger and Spring Valley, Minnesota. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 377Daljianella crispata Hall and Clarke. See Hebertella (Glyptorthis) crispata.Dalmanella edgewoodensis Savage.Dalmanella edgowoodensis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 76,pi. 4, figs. 11-13, pi. 7, fig. 9.Upper Medinan: Near Thebea, Illinois; Missouri (Edgewood); Will County,Illinois (Channahon).Dalmanella electra (Billings).Orthis Electra Billings, Pal. Fossils, 1, 1865, p. 79, fig. 72; p. 217; Geol. Canada,18G3, p. 231, fig. 246.?White, Wheeler's Rep. Geol. Geogr. Expl. west 100Merid., 4, 1875, p. 55.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.513, figs.Dalmanella electra Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 223.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 125, pi. 4, fig. 13.Canadian: Point Levis, Quebec; Point Rich, etc., Newfoundland; St. John,New Brunswick; House Range, Utah; Columbia, New Jersey.Dalmanella electra laevls (Matthew).Orthis electra var. Isevis Matthew, Trans. Royal Soc. Canada, 10, 1893, p. 100.Dalmanella electra lajvis Schuchert, Bull. U. S. Geol. Surv., 87, 1899, p. 200.Canadian (Bretonian?Div. C 3d): St. John, New Brunswick.Dalmanella electra major (Matthew).Orthis electra var. major Matthew, Trans. Royal Soc. Canada, 10, 1893, p. 100,pi. 7, fig. 3.Dalmanella electra major Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 200.Canadian (Bretonian?Div. C 3d): St. John, New Brunswick.Dalmanella elegantula (Dalman).Orthis elegantula Dalman, Kongl. Svenska Vet.-Akad. Handl., 1828, p. 117, pi.2, fig. 6.?Hall, Pal. New York, 2, 1852, p. 252, pi. 52, fig. 3.?Billings.Canadian Nat. Geol., 1, 1856, p. 136, pi. 2, fig. 5.?Roemer, Sil. Fauna WestTennessee, 1860, p. 62, pi. 5, fig. 7.?Billings, Geol. Canada, 1863, p. 312,fig. 320.?Chapman, Canadian Jour., n. s., 8, 1863, p. 212, fig. 218; Expos.Min. Geol. Canada, 1864, p. 184, fig. 218.?Davidson, Mon. British Sil.Brach., Pal. Soc, 1869, p. 205, figs. 1, 2; p. 211, pi. 27, figs. 1-9.?Hall, 28thRep. New York State Mus. Nat. Hist., 1879, p. 150, pi. 21, figs. 11-17; 11thRep. State Geol. Indiana, 1882, p. 285, pi. 21, figs. 11-17; 2d Ann. Rep.StateGeoL, 1883, pi. 35, figs. 34-37; 36thRep. New York State Mus. Nat. Hist.,1884, p. 75, pi. 3, figs. 8, 9.?Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885,p. 84, pi. 13, fig. 1.?Miller, N. A. Geol. Pal., 1889, p. 357, fig. 590.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 514, figs.'?Nettelroth, Ken-tucky Foss. Shells, Mem. Kentucky Geol. Surv., 1889, p. 37, pi. 32, figs.52-57.?Beecher and Clarke, Mem. New York State Mus., 1, 1889, p. 14, pi.1, figs. 3-12.?Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 307.Orthis canalis Hall, Geol. New York, Rep. 4th Dist., 1843, p. 105, fig. 6.?Owen,Amer. Jour. Sci. Arts, 48, 1845, p. 313, fig. 6.?Emmons, Man. Geol., 1860,p. 109, fig. 99.Orthis elegantula? var. Hall, Pal. New York, 2, 1852, p. 57, pi. 20, fig. 7.Dalmanella elegantula Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207,224, pi. 5C, figs. 15-19.?Grabau, Bull. New York State Mus., 45, 1901, p.187, fig. 97; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 187, fig. 97.?Clarke andRuedemann, Mem. New York State Mus., 5, 1903, p. 41, pi. 4, fig. 9.?Kindleand Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 433, pi.2, fig. 9.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 261, fig. 312.?Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 27, 378 BULLETIN t>2_, UNITED STATES NATIONAL MUSEUM.Dalmanella elegantula?Continued.Orthis (Dalmanella) elegantula Foerste, Geol. OMo, 7, 1895, p. 581, pi. 25, figs.11, 17.Silurian: Europe. Widely distributed in all of the post-Richmond Silurianformations of eastern North America.Plesiotypes.?Cat. No. 51345, U.S.N.M. (Netteboth.)Dalmanella elegantula media (Shaler).Ortliis media Shaler, Bull. Mus. Comp. Zool., 1, 1865, p. 65.?Billings, Cat. Sil.Fossils of Anticosti, 1866, p. 41.Rhipidomella media Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 349.Anticostian (Jupiter River and Chicotte): Southwest Point, etc., Anticosti.Dalmanella elegantula parva (Foerste).Orthis elegantula var. parva Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p.85, pi. 13, fig. 17.Dalmanella elegantula var. parva Hall and Clarke, Pal. New York, 8, pt. 1, 1892,p. 224.Upper Medinan (Brassfield): Dayton, Ohio.Dalmanella emacerata Foerste (1909). See Dalmanella fultonensis.Dalmanella emacerata (Hall).Orthis emacerata Hall, 13th Rep. New York State Cab. Nat. Hist., 1860, p. 121;15th Rep. ibid., 1862, pi. 2, figs. 1, 3.?Billings, Canadian Nat. Geol., 7, 1862,p. 393.?Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 24,?Hall, 2d Ann.Rep. New York State Geol., 1883, pi. 34, figs. 14, 15.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 515, figs.?Keyes, Geol. Surv. Missouri, 5,1895, p. 58.?Sardeson, Amer. Geol., 19, 1897, p. 102, pi. 5, figs. 14, 18, 28.Orthis cyclus James, Cincinnati Quart, Jour. Sci., 1, 1874, p. 19.Dalmanella emacerata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207,224, pi. 5C, figs. 1, 2.?Grabau and Shimer, N. A. Index Foss., 1, 1907, p.260, fig. 311i-m.?Foerste, Sci. Lab. Denison Univ., Bull. 17, 1912, p. 128,pi. 8, figs. 3a, b.Dalmanella testudinaria vai'. emacerata Cumings, 32d Ann. Rep., Dep. Geol.Nat. Res., Indiana, 1908, p. 898, pi. 33, figs. 5-5a.Dalmanella emacerata filosa Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909,p. 214, pi. 4, fig. 1.Eden (Fulton-Sou thgate): Cincinnati, Ohio, and vicinity.Dalmanella emacerata brevicula (Foerste).Dalmanella breviculus Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, pp.216, 322, pi. 7, fig. 5.Orthis emacerata (part) Hall, 15th Rep. New York State Cab. Nat. Hist., 1862,pi. 2, fig. 2.Dalmanella emacerata brevicula Foerste, Bull. Sci. Lab. Denison Univ., 17,1912, p. 128.Eden (Southgate) : Cincinnati, Ohio; Vevay, Indiana.Dalmanella emacerata eilosa Foerste. See Dalmanella emacerata.Dalmanella(?) evadne (Billings).Orthis evadne Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 81, fig. 74; p.79 (adv. sheets 1862).?^^^utfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p.300, pi. 24, fig. 8.?Seely, Vermont State Geol., Rep., 7, 1910, pi. 62, fig. 8.Dalmanella? evadne Hall and Clarke, Pal. New York, 8. pt. 1, 1892, p. 223, pi.5B, figs. 25, 26.Canadian: Point Levis, Quebec (Le\'i8); Fort Cassin, Vermont (Beekmantown). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 379Dalmanella fainuountensis Foersto.Dalmanella fairmountensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p.216, pi. 4, figs. 2a-c; p. 322, pi. 7, fig. 2.Maysville (Bellevue): Hamilton and Cincinnati, Ohio; New Trenton, etc.,Indiana.Dalmanella fortilis Bassler.Orthis (Dalmanella) testudinaria Hayes and Ulrich, XJ. S. Geol. Stirv.. folio 95,Illust. Sheet. 1903, figs. 42, 43.Orthis (Dalmanella) fertilis Bassler, Bull. Virginia Geol. Siirv., 2, 1909, pi. 24;fig. 5.Trenton (Hermitage): Central Tennessee, Kentucky, and Virginia.Cotypes and plesiotypes.?Cat. No. 35455, U.S.N.M.Dalmanella fissiplica Foerste. See Orthostrophia (Schizoramma) fissiplica.Dalmanella freitana (Clarke).Orthis (Dalmanella) freitana Clarke, Archivos Mus. Nac. Rio de Janeiro, 10,author's Engl, ed., 1900, p. 10, pi. 1, figs. 22-24.Silurian: Rio Trombetas, Brazil.Dalmanella fultonensls Foerste.Dalmanella emacerata Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 321 , pi.7, fig. 1.Dalmanella fultonensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912, p. 129.Eden (Fulton) : Cincinnati, Ohio.Dalmanella futilis (Sardeson).Orthis fiitilis Sardeson, Amer. Geol., 19, 1897, p. 104, pi. 5, figs. 25-27.Dalmanella testxidinaria futilis Schuchert, Bull. U. S. Geol. Surv., 87, p. 205.Richmond (Maquoketa): Near Granger and Wykoff, Minnesota.Dalmanella gibbosa Hall and Clarke. See Pianodema subsequata gibbosa.Dalmanella hamburgensis (Walcott).Orthis hamburgensis Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 73, pi. 2, fig. 5.Orthis (Dalmanella) hamburgensis? Winchell and Schiichert, Geol. Minnesota,3, 1893, p. 440, pi. 33, figs. 14-16.Upper Pogonip : Eureka District, Nevada.Black River: St. Paul, etc., Minnesota (Decorah); High Bridge, Kentucky(Lowville).Cotypes.?Csit. No. 17259, U.S.N.M.Dalmanella holiensis Cleland.Dalmanella holiensis Cleland, Bull. Amer. Pal., 3, 1900, p. 130 (258), pi. 17,fig. 9.Canadian (Tribes Hill): Near Fort Hunter, New York.Dalmanella ignota (Sardeson).Orthis ignota Sardeson, Amer. Geol., 19, 1897, pp. 99, 181, pi. 5, figs. 1-7.Dalmanella testudinaria ignota Schuchert, Bull. U. S. Geol. Surv., 87, 1907,p. 205.Richmond (Maquoketa): Near Spring Valley, Minnesota.Dalmanella jugosa Foerste. See Dalmanella meeki.Dalmanella lunata (Sowerby).Orthis lunata Sowerby, Sil. Syst., 1839, p. 611, pi. 5, fig. 15.?Davidson. BritishSil. Brach., 1869, p. 215, pi. 28, figs. 1-5. 380 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dalmanella lunata?Continued.Dalmanella lunata WUliams, Proc. U. S. Nat. Mue., 45, 1913, p. 337, pi. 30, figs.1-5, 8.Orthis orbicularis Sowerby, Sil. Syst., 1839, p. 611, pi. 5, fig. 16.Silurian: England; Leighton Cove, Washington County, Maine (Pembroke).Plesiotypes.?Cut. Nos. 58957-58959, U.S.N.M.Dalmanella macleodi (Whitfield).Orthis macleodi WTiitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 43, pi. 7,figs. 1-4.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 523, figs.Dalmanella macleodi Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 224.Canadian (Beekmantown) : Beekmantown, New York.Dalmanella macrior (Sardeson).Orthis macrior Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 330, pi. 5,figs. 5-7.Orthis (Dalmanella) testudinaria var. emacerata Winchell and Schuchert, Geol.Minnesota, 3, 1893, p. 445, pi. 33, figs. 23-24.Orthis emacerata Sardeson, Amer. Geol., 19, 1897, p. 102, pi. 5, figs. 14-18, 28.Richmond (Maquoketa) : Spring Valley and Granger, Minnesota.Dalmanella meeki (Miller).Orthis emacerata Meek (not Hall), Pal. Ohio, 1, 1873, p. 109, pi. 8, figs. 1, 2.Orthis parva Billings (not Verneuil), Cat. Sil. Foss. Anticosti, 1866, p. 41.Orthis meeki Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 20.?Sardeson,Amer. Geol., 19, 1897, p. 98, pi. 4, figs. 24-29.Dalmanella meeki Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 206, 224,pi. 5C, fig. 3.?Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 218(synonymy and history discussed).Dalmanella testudinaria var. meeki Cumings, 32d Ann. Rep. Dep. G^ol. Nat.Res. Indiana, 1908, p. 899, pi. 33, figs. 6-6g.Orthis jugosa James, Paleontologist, 4, 1879, p. 31.Dalmanella jugosa Foerste, Bull. Sci. Lab. Denison Univ., 4, 1909, pi. 14, figs.16a-b, p. 218; Ohio Nat., 12, No. 3, 1912, p. 453, pi. 22, fig. 1.Richmond: Oxford, etc., Ohio; Indiana; Kentucky; Anticosti; etc.Dalmanella melita (Hall and Whitfield).Leptsena melita Hall and Whitfield, King's U. S. Geol. Surv., 40th Pari., 4, 1877,p. 208, pi. 1, figs. 13, 14.?Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 22.Dalmanella melita Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 202.Lower Pogonip: Eureka District, Nevada.Dalmanella modcsta Savage.Dalmanella modesta Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 48, pi. 1,figs. 14, 15.Upper Medinan (Girardeau): Alexander County, Illinois.Dalmanella multisecta (Meek).Orthis multisecta James, Cat. L. Sil. Foss. Cincinnati Group, 1871, p. 10 (nom.nud.).?Sardeson, Amer. Geol., 19, 1897, p. 97, pi. 4, figs. 20-23.Orthis emacerata var. multisecta Meek, Pal. Ohio, 1, 1873, p. 112, pi. 8, fig. 3. ? Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 22.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 515, figs.Dalmanella testudinaria var. multisecta Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 901, pi. 33, figs. 4, 4c.?Schuchert, Bull. U. S. Geol.Surv., 87, 1897, p. 205. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 381Dalmanella inultlsecta?Continued.Dalmanella multisecta Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207-224.?Cumings, Amer. Geol., 28, 1901, p. 374.?Foerste, Bull. Sci. Lab.Denison Univ., 14, 1909, p. 217.?Bassler, Bull. Virginia Geol. Surv., 2a,1909, pi. 14, figa. 4-6.Eden: Cincinnati, Ohio, and vicinity; Maryland; Virginia; East Tennessee;Albany County, New York (Indian Ladder).Dalmanella perveta Hall and Clarke. See Pianodema subasqiiata and P. sub-sequata perveta.Dalmanella? plicipera Schuchert. See Leptaena incrassata.Dalmanella porrecta (Sardeson).Orthis porrecta Sardeson, Amer. Geol., 19, 1897, p. 104, pi. 5, figs. 19-24.Dalmanella testudinaria porrecta Schuchert, Bull. U. S. Geol. Surv., 87, 1897,p. 205.Richmond (Maquoketa) : Near Granger, Minnesota.Dalmanella postelegantula Weller.Dalmanella postelegantula Weller, Geol. Sui-v. New Jersey, Pal., 3, 1903, p. 232, ? pi. 20, figs. 21-24.Helderbergian (Decker Ferry): Two miles south of Tristates, New York.Dalmanella rogata (Sardeson).Orthis rogata Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 331, pi. 5,figs. 1-4; Amer. Geol., 19, 1897, p. 95, pi. 4, figs. 1-10.Orthis (Dalmanella) testudinaria Hall, Pal. New York, 8, pt. 1, 1892, pi. 5B,figs. 27 to 31.?Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 441, pi.33, figs. 17-22.Black River and Trenton: St. Paul, etc., Minnesota; Iowa and Wisconsin.Dalmanella? ruida (Billings).Orthis ruida Billings, Cat. Sil. Fossils of Anticosti, 1866, p. 42.Gamachian (Ellis Bay): Gamache Baj', Anticosti.Dalmanella smithi (Clarke).Orthis (Dalmanella) smithi Clarke, ArchivosMus. Nac. Rio de Janeiro, 10, author'sEng. ed., 1900, p. 11, pi. 1, figs. 12-16.Silurian: Rio Trombetas, Brazil.Dalmanella stonensis Hall and Clarke. See Pianodema stonensis.Dalmanella sub^quata Hall and Clarke. See Pianodema subsequata.Dalmanella sub^quata var. pervetus Ruedemann. See Pianodema subsequataperveta.Dalmanella tersa (Sardeson).Orthis tersus Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 331, pi. 5,figs. 11-13; Amer. Geol., 19, 1897, p. 100, pi. 5, figs. 8-13.Dalmanella tersa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 204.Richmond (Fernvale): Wilmington, Illinois; Tennessee.Dalmanella testudinaria (Dalraan).Orthis testudinaria Dalman, Kongl. Svenska Vet.-Akad. Handl., 1828, p. 115, pi.2, fig. 4.?Conrad, Ann. Rep. Geol. Surv. New York, 1839, p. 63.?Emmons,Geol. New York, Rep. 2d Dist., 1842, p. 404, fig. 4.?Hall, Pal. New York, 1,1847, p. 117, pi. 32, fig. 1; p. 288, pi. 79, fig. 4.?Emmons, Amer. Geol., 1, 382 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dalmanella testudinaria?Continued.pt. 2, 1855, p. 194, pi. 9, figs, la-i; pi. 17, fig. 12.?Billings, Canadian Nat.and Geol., 1, 1856, p. 40, fig. 1.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858,p. 818, fig. 601.?Emmons, Man. Geol., 1860, p. 102, fig. 3; p. 99, .fig. 88.?Hitchcock. Geol. Vermont, 1, 1862, p. 294, fig. 201.?Chapman, CanadianJour., n. s., 7, 1862, p. Ill, fig. 90; ibid., 8, 1863, p. 199, fig. 182.?Billings,Geol. Canada, 1863, p. 165, fig. 144.?Chapman, Expos. Min. Geol. Canada,1864, p. 114, fig. 90; p. 171, fig. 182.?Safford, Geol. Tennessee, 1869, p. 275,fig. 8.?Miller, Cincinnati Quart. Jour. Sci., 1875, p. 20.?White, Wheeler'sExpl. Surv. west 100th Merid., 4, 1875, p. 72.?Shaler, Mem. Geol. Surv.Kentucky, 1, 1876, p. 31.?Whitfield, Geol. Wisconsin, 4, 1882, p. 258, pi. 12,?gs, 5-7 ?Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 34, figs. 1-4,6-13.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 155, fig.?Walcott, Mon.U. S. Geol. Surv., 8, 1884, p. 72, pi. 11, fig. 10.?Lesley, Geol. Surv. Penn-sylvania, Rep. P4, 1889, p. 536, figs.; p. 537, figs.?Sardeson, Amer. Geol.,19, 1897, pp. 92, 95.Orthis striatula Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 394, fig. 3.?Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 366, fig. 3.Orthis disparilis Owen (not Conrad), Geol. Surv. Wisconsin, Iowa, Minnesota,1852, pi. 2B, fig. 23.Dalmanella testudinaria Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 190,206, 218, 224, pi. 5B, figs. 31-39.?Ruedemann, Bull. New York State Mus.,49, 1902, p. 25.?Weller, Geol. Siu-v. New Jersey, Pal., 3, 1903, p. 155, pi. 10,figs. 1, 2; p. 216, pi. 16, figs. 4, 5.?Grabau and Shimer, N. A. Index Fossils,1, 1907, p. 260, fig. 311a-e.Orthis (Dalmanella) testudinaria Whiteaves, Pal. Foss. Geol. Surv. Canada, 3,pt. 2, 1895, p. 121; ibid., 3, pt. 3, 1897, pp. 177, 241.?Schuchert, Proc. U. S.Nat. Mus., 22, 1900, p. 156.Middle and Upper Ordo^dcian: Europe and America.Observation.?The above miscellaneous citations refer to a variety of forms.Dalamanella testudinaria var. emacerata Cumings. See Dalmanella ema-cerata.Dalmanella testudinaria futilis Schuchert. See Dalmanella futilis.Dalmanella testudinaria ignota Schuchert. See Dalmanella ignota.Dalmanella testudinaria var. meeki Cumings. See Dalmanella meeki.Dalmanella testudinaria var. multisecta Schuchert. See Dalmanella multisecta.Dalmanella testudinaria porrecta Schuchert. See Dalmanella porrecta.Dalmanella wemplei Cleland.Dalmanella (Orthis) wemplei Cleland, Bull. Amer. Pal., 3, 1900, p. 129 (257), pi.17, figs. 10-13.Dalmanella wemplei Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 124, pi. 4,figs. 10-12.?Cleland, Bull. Amer. Pal., 4, 1903, p. 19.Canadian (Tribes Hill): Tribes Hill. Fort Hunter, etc.. New York; New Jersey.Dalmania Salter. See Dalmanites Barrande.Dalmania bicornis Hall. See Dalmanites bicornis.Dalmania breviceps Hall. See Chasmops breviceps.Dalmania callicephala Hall. See Pterygometopus callicephalus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 383Dalmania caudata Roemer. See Dalmanites limulurus.Dalmania Danae Meek and Worthen. See Dalmanites danae.Dalmania limulurus Lincklaen. See Dalmanites limulurus.Dalmanla. logani Hall. See Dalmanites logani Hall.Dalmanla meta Hall. See Pterygometopus meta.Dalmania verrucosa Hall. See Dalmanites verrucosus.Dalmania vigilans Hall. See Dalmanites vigilans and D. halli.DALMANITES Barrande. Genotype: Trilobus caudatua Bronn.Dalmania Emmrich, Zur. Naturg. d. Tril., 1844, p. 15; Neues Jalirb. f. Min., etc.,1845, p. 40.?Salter, Mem. Geol. Sur\\ Great Britain, 2, pt. 1, 1848, p. 336.?Barrande, Neues Jahrb. f. Min., etc., 1850, p. 779; Syst. Sil. du CentreBoheme, 1, 1852, p. 528.?Pictet, Traite de Pal., 2d ed., 2, 1854, p. 501.?Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 256.?Schmidt, Mem. I'Aoad. Imp. Sci. St. Petersburg, 7, ser. 30, 1881, p. 61.Dalmanites Barrande, Syst. Sil. du Centre, Boheme, 1, 1852, p. 934.?Chapman,Canadian Jour., n. a., 8, 1863, p. 30; Expos. Min. Geol. Canada, 1864, p. 138.?Meek and Worthen, Geol. Sur\-. Illinois, 3, 1868, p. 367.?Miller, CincinnatiQuart. Jour. Sci., 1, 1874, p. 142.?Hall, 28th Rep. New York State Mus. Nat.Hist., mus. ed., 1879, p. 191.?Packard, Amer. Nat., 14, 1880, p. 504.?Hall,11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 337.?Zittel, Handb.Pal., 2, 1885, p. 615.?Clarke, Jour. Morph., 2, 1888, p. 254.?Hall and Clarke,Pal. New York, 7, 1888, p. 29.?Miller, N. A. Geol. Pal., 1889, p. 542.?Beecher, Amer. Jour. Sci., 3d ser., 46, 1893, p. 143.?Clarke, Geol. Minnesota,3, pt. 2, 1894, p. 733.?Beecher, Amer. Geol., 16, 1895, pp. 167, 174, 178.?(Ehlert, Bull. Soc. Geol. France, 3d ser., 24, 1896, p. 112, fig. 29-31.?Beecher,Amer. Jour. Sci., 4th ser., 3, 1897, pp. 104, 184, pi. 3, figs. 5-8, 29; Zittel-Eastman Textb. Pal., 1, 1900, p. 637.?Grabau, Bull. New York State Mus.,45, 1901, p. 223; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 223.?Lindstrom,Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, pp. 27, 52.?Jaekel, Zeits.d. d. geol. Gesell., 53, 1901, p. 157.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res., Indiana, 1908, p. 1051.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 324.?Raymond, Zittel-Eastman Textb. Pal., 1913, p. 726.Dalmanites archates Billings. See Pterygometopus achates.Dalmanites arkansanus Van Ingen.Dalmanites (Synphoria) arkansanus Van Ingen, School of Mines Quart.. 23, 1901,p. 69, figs. 20-22, pi. figs. 33-37.Dalmanites arkansanus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 2, 1907, p. 278, pi. 24, fig. 5.Niagaran: St. Clair Springs, Independence County, Arkansas (St. Clair); nearLemont and Romeo, Illinois (Racine).Dalmanites aspinosus Weller.Dalmanites aspinosa Weller, Pal. New Jersey, 3, 1903, p. 252, pi. 22, fig. 1. ? Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 499, pi. 91, fig. 16.Helderbergian: Two miles south Tristates, New York (Decker Ferry); Devil'sBackbone, near Cumberland and Cash Valley, Maryland (Keyser).Dalmanites bebryx Billings.Dalmanites Bebryx Billings, Canadian Nat. Geol., 5, 1860, p. 61, fig. 8; Geol.Canada, Geol. Surv. Canada, 1863, p. 187, fig. 185.Trenton: Ottawa, Ontario. 384 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dalmanites bicornis (Hall).Dalmania bicornis Hall, 28tli Rep. New York State Mus. Nat. Hist. (doc. ed.),1877, pi. 33, fig. 18, 1877.Dalmanites bicornis Hall, 28tli Rep. New York State Mus. Nat. Hist., Mus. ed.,1879, p. 196, pi. 33, fig. 18; 11th Rep. Dep. Geol. Nat. Hist. Indiana, 1882,p. 342, pi. 35, fig. 18.Niagaran (Waldron): Waldron, Indiana; Tennessee.Dalmanites breviceps Miller. See Chasmops breviceps.Dalmanites callicephalus Billings. See Pterygometopus callicephalus.Dalmanites Carleyi Meek. See Pterygometopus carleyi.Dalmanites carleyi rogersensis Foerste. See Pterygometopus carleyi rogersensis.Dalmanites danae (Meek and Worthen).Dalmania Danae Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865,p. 264Dalmanites danae Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 363, pi. 6,figs, la-lf.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 325.Dalmanites danai Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 106, pi. 6, figs.16, 17.Upper Medinan (Edgewood): Near Thebes, Illinois; Edgewood and Louisiana,Missouri.Dalmanites eboraceus Miller. See Pterygometopus eboraceus.Dalmanites (Pterygometopus) goodridgii Schuchert. See Pterygometopus good-ridgii.Dalmanites halli Weller.Dalmania vigilans Hall (not Hall, 1862), 28th Rep. New York State Mus. Nat.Hist., doc. ed., 1877, pi. 33, figs. 1-4.Dalmanites vigilans Hall, ibid., mus. ed., 1879, p. 193, pi. 33, figs. 1-4; 11th Rep.Dep. Geol. Nat. Hist. Indiana, 1882, p. 339, pi. 35, figs. 1-4; pi. 33, fig. 9.Dalmanites halli Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907,p. 195.Niagaran (Waldron) : Waldron, Indiana.Dalmanites illinoisensis Weller.Dalmanites illinoiseneis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 2, 1907, p. 275, pi. 25, figs. 1-2.Niagaran (Racine): Joliet, Bonfield, etc., Illinois.Dalmanites intermedius Walcott. See Pterygometopus intermedins.Dalmanites lieyserensls Swartz.Dalmanites keyserensis Swartz, Maryland Geol. Surv., Low. Dev., 1913, p. 499,pi. 91, figs. 8, 9.Helderbergian(Keyser): Tonoloway, Maryland.Dalmanites limulurus (Green).Asaphus limulurus Green, Mon. Tril. N. A. 1832, p. 48.?Harlan, Trans. Geol. Soc.Pennsylvania, 1, pt. 1, 1834, p. 101.?Castelnau, Essai Syst. Sil. I'AmeriqueSeptent, 1843, p. 18, pi. 4, fig. 1.?Hall, Geol. New York, pt. 4, 1843, p. 101,figs. 1-2; tab. org. rem., 10, figs. 1-2.?Owen, Amer. Jour. Sci. Arts, 46, 1845,pp. 309-310, figs. 1, 2. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 385Dalmanltes Umulurus?Continued.Phacops limulurus Hall, Pal. New York, 2, 1852, p. 303, pi. 67, figs. 1-8.?Bill-ings, Can. Nat. Geol., 1, 1856, p. 57, pi. 1, fig. 7.Dalmania limulunis Lincklaen, 14tli Rep. New York State Cab. Nat. Hist., 1861,pi. 8, figs. 2, 3.?Hall, Pal. New York, 3, 1859, p. 357.Dalmanltes limulurus Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 320,fig. 340.?Chapman, Canadian Jour., n. s., 8, 1863, p. 31, fig. 145, p. 212, fig.221; Expos. Min. Geol. Canada, 1864, p. 138, fig. 145; p. 184, fig. 221.?Miller,N. A. Geol. Pal., 1889, p. 543, fig. 998.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 188, figs.-Clarke, 45th Rep. New York State Mas., 1892,p. 355; 11th Rep. State Geol. New York for 1891, 1894, p. 39.?Grabau, Bui.New York State Mus., 45, 1901, pp. 223-224, fig. 155; Bull. Buffalo Soc. Nat.Sci., 1901, p. 224, fig.155.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 325, fig. 1641.?Raymond, Zittel-Eaatman Textb. Pal., 1913, p. 726, fig.1408.Asaphus caudatus Green, Mon. Tril. N. A., 1832, p. 50.?Eaton, Geol. Textb.,2d ed., 1832, p. 31, pi. 2, fig. 18.?Castelnau, Essai Syst. Sil. I'AmeriqueSeptent., 1843, p. 19.Dalmania caudata Roemer, Sil. Fauna West Tennessee, 1860, p. 82, pi. 5, fig. 21.Asaphus wetherilli Green, Mon. Tril. N. A., 1832, p. 57.?Harlan, Trans. Geol. Soc.Pennsylvania, 1, pt. 1, 1834, p. 101.Asaphus edwardsi Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p. 19.Asaphus cordieri Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p. 18, pi.4, fig. 2.Clinton (Rochester-Osgood): Rochester, Lockport, etc., New York; Ontario;Indiana; Tennessee; Maryland; Pennsylvania.Plastotype.?Cat. No. 4954, U.S.N.M.Dalmanltes limulurus brevicaudatus Foerste.Dalmanltes limulurus brevicaudatusFoerste, Cincinnati Soc. Nat. Hist., Jour., 21,1909, p. 35, pi. 2, figs. 20a-c.Clinton (West Union): New Martins, Lewis County, Kentucky.Dalmanltes logani (Hall).Dalmania logani Hall, Canadian Nat. Geol., 5, 1860, p. 156.?Dawson, AcadianGeol., Suppl. Chap., 1860, p. 68, fig. 64; ibid., 2d ed., 1868, p. 608, fig. 215.Silurian (Stonehouse): Arisaig, Nova Scotia.Dalmanltes lunatus Lambert.Dalmanites lunatus Lambert, Bull. Geol. Soc. America, 15, 1904, p. 482, pi. 44,figs. 1-3, 5; Lambert in Hitchcock's Geol. of Littleton, 1905, pp. 33-38.Silurian: Near Littleton, New Hampshire.Cotypes?Cat. No. 50459, U.S.N.M.Dalmanltes platycaudatus Weller.Dalmanltes platycaudatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 2, 1907, p. 272, pi. 25, figs. 3-5.Niagaran (Racine): Near Lemont, Illinois.Dalmanites schmidti Miller. See Pterygometopus schmidti.Dalmanites troosti Safford. See Pterygometopus troosti.Dalmanites verrucosus (Hall).Dalmania verrucosa Hall, 28th Rep. New York State Mus. Nat. Hist., Mu.s. ed.,1877, p. 195, pi. 33, figs. 5-17; pi. 34, figs. 13-15.84243??Bull< 92?15 25 386 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dalmanites verrucosus?Continued.Dalmanites verrucosa Hall, Trans. Albany Inst., 4, 1864, p. 218; 11th. Rep. Dep.Geol. Nat. Hist. Indiana, 1882, p. 341, pi. 35, figs. 5-17; pi. 36, figs. 13-15.?Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 191, figs.?Weller, Bull.Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 280, pi. 25, figs. G-7.Niagaran: Waldron, Indiana; Tennessee (Waldron); Bonfield, and Jersey County,Illinois.Dalmanites vigllans Hall.Dalmanites vigilans Hall, Rep. Prog. Geol. Surv. Wisconsin, 1861, p. 51.?Weller,Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 276, pi. 24, figs. 1-4.Dalmania vigilans Hall, Adv. sheets 18th Rep. New York State Cab. Nat. Hist.,1862, p. 31; Geol. Surv. Wisconsin, 1, 1862, p. 433, figs. 3-4; 20th Rep. NewYork State Cab. Nat. Hist., 1867, p. 335, figs. 1-2; p. 375, pi. 21, figs. 16-18;rev. ed., 1870, p. 426, figs. 13-14, pi. 21, figs. 16-18.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 195, fig.Dalmanites (Synphoria) vigilans Van Ingen, School of Mines Quart., 23, 1901, p.67, pi., figs. 28-32.?Kindle, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana,1904, p. 485, pi. 23, figs. 4-7; pi. 24, fig. 20.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 325.Dalmanites (Odontochile) vigilans Clarke and Ruedemann, Bull. New YorkState Mus., 65, 1903, p. 699 (gen. ref.).Niagaran: Waukesha, Wauwatosa, etc., Wisconsin; Anderson and Pendleton,Indiana; Joliet and Lemont, Illinois; St. Clair Springs, Independence County,Arkansas.Dalmanites vigilans Hall (1877). See Dalmanites halli.Dalmanites werthneri Foerste.Dalmanites werthneri Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 116;2, 1887, p. 101, pi. 8, figs. 22, 22a, 23-25; Geol. Surv. Ohio, 7, 1895, p. 530, pi.27, figs. 22, 22a, 23-25.Upper Medinan (Brassfield): Near Dayton, Ohio.DANIA Edwards and Haime. Genotype: D. huronica Edwards and Haime.Dania Edwards and Haime, Compt. Rend, de I'Acad. Sci., 29, 1849, p. 261;Mon. d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p.154, 275.?Pictet, Traite de Pal., 2d ed., 1857, p. 443.?Milne-Edwards,Hist. Nat. d. Corall., 3, 1860, p. 280.?Nicholson, Tab. Corals Pal. Period,1879, p. 327.?Zittel, Handb. Pal., 1, 1880, p. 617.?Roemer, Leth. geog.,pt. 1, Leth. Pal., 1883, p. 461.?Miller, N. A. Geol. Pal., 1889, p. 184.DanIa huronica Edwards and Haime.Dania huronica Edwards and Haime, Mon. Polyp. Foss. Terr. Pal. (Arch. Mus.Hist. Nat., 5), 1851, p. 275, pi. 18, fig. 2, 2a, 2b.?Milne Edwards, Hist. Nat.d. Corall., 3, 1860, p. 281.?Roemer, Leth. geog., Leth. Pal., 1883, p. 461,fig. 112.Niagaran: Drummond Island, Lake Huron.DAWSONIA Nicholson. Genotype: D. campanulata Nicholson." Ovarian vesicles of graptolites " Nicholson, Mon. British Grapt., pt. 1, 1872, p. 71.Dawsonia Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 139.?Nicholsonand Lyddecker, Man. Pal., 1, 1889, p. 214.?Miller, N. A. Geol. Pal., 1889, p.184.?James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892, p. 162.?Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 738-740; ibid.,Mem. 11, pt. 2, 1908, p. 484. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 387Dawsonia acuminata Nicholson.Dawsonia acnmiuata Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1878, p. 140,fig. 3a, a'.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 485,fig. 466.Lower OrdoAacian: Point Levis, Quebec (Levis)' Scotland (Llandeilo).Dawsonia campanulata Ruedemann. See Azygograptus? simplex.Dawsonia monodon Gurley.Dawsonia monodon Gurley, Jour. Geol., 4, 1896, p. 88, pi. 5, fig. 4.?Ruedemann,New York State Pal. Ann. Rep., 1902, pp. 554, 556; Mem. New York StateMus., 7, pt. 1, Addendum, 1904, pp. 741, 742, pi. 17, figs. 21-26, fig. 105.Canadian: Point Le\ns, Quebec (Levis, Didymograptus zone); Deepkill, Rens-selaer County, New York (Deepkill, Tetragraptus zone).Dawsonia rotunda Nicholson. See Acrothele rotunda.Dawsonia siliquaria James. See Lockeia siliquaria.Dawsonia tenuistriata Nicholson.Dawsonia tenuistriata Nicholson, Ann. Mag. Nat. Hist., 4th ser., 11, 1873, p. 141,fig. 3c, q', d, d^Canadian (Levis) : Point Levis, Quebec.Observation.?The specimens figured by Nicholson are very probably smallbrachiopods.Dawsonia tridens Gurley.Dawsonia tridens Gurley, Jotir. Geol., 4; 1896, p. 88, pi. 5, fig. 5.?Ruedemann,New York State Pal. Ann. Rep., 1902, p. 556; Mem. New York State Mus.,7, pt. 1, Addendum, 1904, p. 741, pi. 17, figs. 18-20.Canadian: Point Levis, Quebec (Levis, Tetragraptxis zone); Deepkill, RensselaerCounty, New York (Deepkill, Tetragraptus zone).DAWSONOCERAS Hyatt. Genotype: Orthoceras annulatum Sowerby.Dawsonoceraa Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 276; Zittel-Eastman Textb. Pal., 1, 1900, p. 518; 2d ed., 1913, p. 599.?Clarke andRuedemann, Mem. New York State Mus., 5, 1903, p. 82.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 58.Dawsonoceras annulatum (Sowerby).Orthoceras annulatum Sowerby, Min. Conch., 2, 1818, p. 77; Eaton, Geol. Textb.,2d ed., 1832, p. 29, pi. 3, fig. 24.?Hall, Nat. Hist. New York, Geol., 4, 1843,p. 110, fig. 1; tab. ill. 17, fig. 1; Pal. New York, 2, 1852, p. 96, pi. 29, fig. 3.?Marcou, Geol. Map United States and British Provinces, etc., 1853, p. 27,pi. 2, fig. 1.?Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 78, pi.5, figs. 18a, 18b.?Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, p. 83.?Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (Extras,1865), p. 351, pi. 20 (11), figs. 4-6 (see expl. of pis., p. 393); rev. ed., 1870,p. 411, pi. 20, figs. 4-6; pi. 24, figs. 2-4, p. 433.?Hall and T\Tiitfield, Geol.Surv. Ohio, Pal., 2, 1895, p. 147, pi. 9, fig. 1.?\^Tiitfield, Geol. Wisconsin, 4,1882, p. 298, pi. 19, fig. 1.?Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat.Hist., 1882, p. 324.?White, ibid., 1882, p. 358, pi. 38, fig. 1.?Chamberlin,Geol. Wisconsin, 1, 1883, p. 194.?Whiteaves, Pal. Foss., Geol. Surv. Canada,3, 1884, pt. 1, p. 38.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.542, figs.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 215, fig. 147;Bull. New York State Mus., 45, 1901, p. 215, fig. 147. 388 BULLETIN 92; UNITED STATES NATIONAL MUSEUM.Dawsonoceras annulatum?Continued.Orthoceras (Dawsonoceras) cf. annulatum Kindle and Breger, 28th Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1904, p. 472, pi. 19, figs. 3,*4.Orthoceras (Cycloceras) annulatum Foerste, Proc. Boston Soc. Nat. Hist., 24,1889, p. 282, pi. 8, fig. 5.Dawsonoceras annulatum Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.58, figs. 1260, 1261.Orthoceras annulatum var. americanum Foord, Cat. Fossil Ceph. British Mus.,1888, p. 56.?Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 2, 1895, p. 101.Orthoceras (Dawsonoceras) annulatum var. americanum Kindle and Breger^28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 472.Dawsonoceras annidatum var. americanum Clarke and Ruedemann, New YorkState Mus., 5, 1903, p. 81, pi. 10, figs. 9-21; pi. 11, fig. 1.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 58.?Grabau, Michigan Geol. Surv., Geol.(1), 1909, p. 196, pi. 28, fig. 8; pi. 29, fig. 1.Orthoceras nodocostum McChesney, Desc. New Fossils, 1861, p. 94; PlatesIllust. N. Sp. Fossils, 1865, pi. 9, fig. 5.?Winchell and Marcy, Mem. BostonSoc. Nat. Hist., 1, 1865, p. 101.Orthoceras nodocostatum McChesney, Trans. Chicago Acad. Sci., 1, 1868, p. 53,pi. 9, fig. 5.Orthoceras Laphami McChesney, Desc. New Fossils, 1861, p. 91.Orthoceras bartonense Spencer, Bull. Missouri State Mxis., 1, 1884, p. 60, pi. 7,fig. 7; Trans. Acad. Sci. St. Louis, 4, 1884, p. 609, pi. 7, fig. 7.?Clarke andRuedemann, Mem. New York State Mus., 5, p. 83.Orthoceras undulatum Hall, Pal. New York, 2, 1852, p. 293, pi. 64, fig. la-f ; pi.65, fig. 3.Silurian: England; Gotland. Niagaran: New York; Canada; Ohio; Indiana;Tennessee; Wisconsin; etc. Upper Monroan: Michigan and Ontario.Observation.?Several species may be included in the above synonymy.Dawsonoceras hammelli (Foerste).Orthoceras (Dawsonoceras) hammelli Foerste. Bull. Sci. Lab., Denison L^'niv.,16, 1910, p. 74, pi. 1, fig. 4.Pdchmond: Dog Falls and Madison, Indiana; Jefferson County, Kentucky(Whitewater-Saluda) ; West Milton, Ohio (Elkhorn).Dawsonoceras tenuilineatum Savage.Dawsonoceras tenuilineatum Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 119^pi. 7, fig. 22.Upper Medinan: Pike County, Missouri (Edgewood); Will County, Illinois (Chan-nahon).DEIPHON Barrande. Genotype: D. forbesi Barrande.Deiphon Barrande, Neuea Jahrb. Min., etc., 1850, p. 779.?Pictet, Trait6de Pal.,2d ed., 2, 1854, p. 522.?Zittel, Handb. Pal., 2, 1885, p. 618.?Koken, DieLeitfossilien, Leipzig, 1896, p. 33.?Reed, Geol. Mag., dec. 4, 5, 1898, p. 211.?Beecher, Zittel-Eastman Textb. Pal., 1, 1900, p. 636.?Raymond, ibid., 2ded., 1913, p. 725.Deiphon amerlcanus Weller.Deiphon americanua Weller, BuU. Chicago Acad. Sci., Nat. Hist. Surv., 4, 1907,p. 268, pi. 24, fig. 14.Niagaran (Racine): Joliet, Romeo, etc., Illinois.Deiphon forbesi Barrande.Deiphon forbesii Barrande, Haidinger's Berichte, 1850, p. 6.? Salter, Mon. BritishTril., 1865, p. 88, pi. 7, figs. 1-12.?Van Ingen, School of Mines Quart., 23,1901, p. 35. 13IJ3LIOGRAPHIC LIST OF GENERA AND SPECIES. 389Deiphou forbesi?Continued.Sphaerexochiis pisum Foerste, Geol. Surv. Ohio, 7, 1895, p. 528, pi. 37A, figs.14a-14b.Deiphon pisum Foerate, Amer. Joxir. Sci., 4th ser., 18, 1904, p. 340.Sihirian: Bohemia and England; Dayton, Ohio (Brassfield); Lockport, NewYork (Rochester); Arkansas (St. Clair).Deiphom pisum Foerste. See Deiphon forbesi.Deiroceras Hyatt. See Actinoceras siibgenus Deiroceras.DEEAYELLA Ulrich. Genotype: Dekayella obscura UlrichDekayella Ulrich, Jotir. Cincinnati Soc. Nat. Hist., 5, 1882, p. 155; ibid., 6, 1883.p. 90.?Miller, N. A. Geol. Pal., 1889, p. 184.?Ukich, Geol. Surv. Illinois, 8,1890, p. 372; Geol. Minnesota, 3, 1893, p. 269; Zittel'sTextb. Pal. (Engl, ed.),1896, p. 273.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897,p. 589.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 31.?Cumings, Amer. Geol., 29, 1902, p. 200.?Ulrich and Bassler, Smiths. Misc.Coll., 47, 1904, pp. 24, 27.?Grabau and Shimer, N. A. Index Fossils, 1,1907, p. 132.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 205; Zittel-EastmanTextb. Pal., 1913, p. 333.Dekayella cystata Cumings. See Heterotrypa frondosa,Dekayella foliacea Ulrich and Bassler.Dekayella foliacea Ulrich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904, p. 28,pi. 7, figs. 10-12.Trenton (Cynthiana): Lexington, Kentucky.Holotype.?C&i. No. 43187, U.S.N.M.Dekayella obscura Ulrich.Dekayella obscura Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 89, pi. 1,figs. 4-4b; Zittel'sTextb. Pal. (Engl, ed.), 1896, fig. 454 (p. 274).?Simpson,14lh Ann. Rep. State Geol. New York for 1894, 1897, figs. 180-182 (p. 589).?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 132.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 333, fig. 480.Dekayia obscura Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.816, pi. 14, figs. 3, 3a.Eden (McMicken): Cincinnati, Ohio, and vicinity.Co?i/pes.?Cat. No. 43659, U.S.N.M.Dekayella perfrondosa prolifica Cumings. See Heterotrypa subramosa pro-lifica.Dekayella praenuntla Ulrich.Dekayella prsenuntia Ulrich, Geol. Minnesota, 3, 1893, p. 270, pi. 23, figs. 32-47.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 177-179(p. 589).?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 132, figs.188b, 190b.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 205, 206, fig. 111.Black River (Decorah): Minneapolis, e{v., Minnesota; Iowa.Middle Ordovician ("Wassalem and Kuckers): Esthonia, Russia.Holotype.?Csit. No. 43528, U.S.N.M.Dekayella prsenuntia echinata Ulrich.Dekayella praenunlia var. echinata T'lrich. Geol. Minnesota, 3, 1893, p. 271. pi.23, figs. 32-38.Black River (Decorah): Near Fountain, Minneapolis and St. Paul, Minnesota.Cotypes.?G&t. No. 43530, U.S.N.M. 390 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Dekayella prsenuntta multipora Ulrich.Dekayella prsenuntia var. multipora Ulrich, Geol. Minnesota, 3, 1893, p. 272,pi. 23, figs. 44-47.Black River (Decorah): Minneapolis, St. Paul, and Goodhue and FillmoreCounties, Minnesota.Holotype.?Cat. No. 43531, U.S.N.M.Dekayella prsenuntia naevigera Uhich.Dekayella prsenuntia var. naevigera Ulrich, Geol. Minnesota, 3, 1893, p. 271. ? Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 207.Black River (Decorah) : Fillmore County, Minnesota.Middle Ordovician (Wassalem) : Esthonia, Russia.Holotype?Csit. No. 43532, U.S.N.M.Dekayella praenuntia simplex Ulrich.Dekayella prienuntia var. simplex Ulrich, Geol. Minnesota, 3, 1893, p. 271, pi.23, figs. 39-42.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 207, fig. 111.Black River (Decorah): Minneapolis and St. Paul, MinnesotaMiddle Ordovician (Wassalem) : Esthonia, Russia.Cotypes.?Cat. No. 43529, U.S.N.M.Dekayella robusta Foord. See Dekayella ulrichi.Dekayella singularis (Ulrich).Heterotrypa singularis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 415, pi. 37, figs. 3-3e;Geol. Minnesota, 3, 1893, p. 268.?Simpson, 14th Ann. Rep. State Geol. NewYork for 1894, 1897, fig. 147 (p. 579).Monticulipora singularis J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895,p. 77.Dekayella singularis Ulrich and Bassler, Smiths. Misc. Coll. Quart., 47, 1904,p. 27 (gen. ref.).Richmond (Fernvale): Wilmington, Illinois; Tennessee; Wisconsin.Sections of cotype.?Cat. No. 43750, U.S.N.M.Dekayella trentonensis (UMch).Dekayia trentonensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1883, p. 151,pi. 6, figs. 6, 6a; Geol. Minnesota, 3, 1893, p. 274.Dekayella trentonensis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 227.?Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 42, pi. 1, fig. 3.Trenton: Burgin and Frankfort, Kentucky (Wilmore); St. Paul and CannonFalls, Minnesota (Prosser).Holotype.?Cat. No. 43660, U.S.N.M.Dekayella ulrichi (Nicholson).Chaetetes Fletcheri (not Milne-Edwards and Haime) Nicholson, Quart. Jour.Geol, Soc. London, 30, 1874, p. 504, pi. 29, figs. 6, 6a; Pal. Ohio, 2, 1875,p. 197, pi. 21, figs. 7, 7a; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 90, pi. 5,fig. 14.?Quenstedt, Roehren- und Sternkorallen, 1891, p. 83, pi. 146, fig. 27.Monticulipora (Heterotrypa) Ulrichii Nicholson, Genus Monticulipora, 1881, p.131, fig. 22.Monticulipora ulrichii Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p.249, pi. 11, fig. 10.?James and James, Jour. Cincinnati Soc. Nat. Hist., 10,1888, p. 179.?James, ibid., 16, 1894, p. 201.Dekayella ulrichi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 7, 1883, pp. 91, 153.Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 227.?Cumings,Amer. Geol., 28, 1901, p. 374.?Nickles, Bull. Kentucky Geol. Surv., 5, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 391Dekayella ulrichl?Continued.1905, p. 47, pi. 2, fig. 4.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 35, pi.2, figs. 13, 14.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 132.Dekayia ulrichi CumingB, Amer. Geol., 29, 1902, p. 13, pi. 9, fig. 1; 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 824, pi. 14, figs. 4, 4b; pi. 28,fig. 7.Dekayella robusta Foord, Ann. Mag. Nat. Hist. (5), 13, 1884, p. 341, pi. 12, figs'. 2-2d.Dekayella ulrichi-robxista Nickles and Bassler, Bull. U. S. Geol. Surv., 173,1900, p. 228.Dekayia ulrichi-robusta Cumings, Amer. Geol., 29, 1902, p. 212, pi. 9, fig. 4, pi.10, fig. 9; 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 826, pi. 14,fig. 2, 2b; pi. 27, fig. 22.Monticulipora ohioensis James, Jour. Cincinnati Soc. Nat. Hist., 10, 1888, p. 183;ibid., 16, 1894, p. 207.Eden: Cincinnati, Ohio, and vicinity.Dekayella ulrichi var. robusta Nickles and Bassler. See Dekayella ulrichi.DEKAYIA mine-Edwards and Haime.Genotype: D. aspera Milne-Edwards and Haime.Dekayia Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 277?Pictet,Traite de Pal., 2d ed., 1857, p. 443.?Milne-Edwards, Hist. Nat. des Corall.,3, 1860, p. 283.?Nicholson, Pal. Tab. Corals, 1879, p. 291; Zittel Handb. Pal.,1, 1880, p. 615; Genus Monticulipora, 1881, p. 98.?Ulrich, Jour. CincinnatiSoc. Nat. Hist., 5, 1832, p. 155; ibid., 6, 1883, p. 148.?Roemer, Leth. geog.,pt. 1, Leth. Pal., 1883, p. 479.?Waagen and Wentzel, Pal. Indica (13), 1886,p. 874.?James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 28. ? Miller, N. A. Geol. Pal., 1889, p. 184.?Ulrich, Geol. Surv. Illinois, 8, 1890,pp. 371, 415.?Rominger, Amer. Geol., 6, 1890, pp. 105-106-114.?Ulrich, Geol.Minnesota, 3, 1893, p. 274; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 273.?J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 115.?Simpson, 14thAnn. Rep. State Geol. New York for 1894, 1897, p. 578.?Nickles and Bassler,Bull. U. S. Geol. Surv., 173, 1900, p. 31.?Cumings, Amer. Geol., 29, 1902, p.197.?Ulrich and Bassler, Smiths. Misc. Coll. Quart., 47, 1904, p. 24.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1907, p. 743.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 133.?Bassler. Zittel-EaetmanTextb. Pal., 1913, p. 333.Dekayia appressa Ulrich.Dekayia appressa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 7, 1883, p. 152, pi. 6,figs. 7-7b.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana. 1908,p. 809, pi. 13, fig. 3.Maysville (Corryville) : Cincinnati, Ohio, and vicinity.Holotype.?C&t. No. 43655, U.S.N.M.Dekayia aspera Milne-Edwards and Haimo.Dekayia aspera Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 278,pi. 16, figs. 2, 2a.?Milne-Edwards, Hist. Nat. des Corall., 3, 1860, p. 283.?Uh-ich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 148, pi. 6, 5; Zittel'sTextb. Pal. (Engl, ed.), 1896, fig. 455, p. 274.?Miller, N. A. Geol. Pal., 1889,p. 184, fig. 165.?Cumings, Amer. Geol., 29, 1902, p. 214, pi. 9, fig. 10; pi. 10,fig. 10.?Nickles, Bull. Kentucky Geol. Sm-v., 5, p. 54, pi. 3, fig. 4.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 133, fig. 190c.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 810, pi. 13, figs. 5-5b; pi. 27,fig. 20.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 333, fig. 481.Monticulipora (Dekayia) aspera James and James, Jour. Cincinnati Soc Nat.Hist., 11, 1888, p. 28.?James, ibid., 18, 1896, p. 116. 392 BULLETIN 92_, UNITED STATES NATIONAL MUSEUM.Dekayla aspera?Continued.Chaetetes attritus Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 503, pi.30, fig. 4, 4a; Pal. Ohio, 2, 1875, p. 194, pi. 21, fig. 4.?Buell, Trans. Wis-consin Acad. Sci., 5, 1882, p. 191.Monticulipora (Chaetetes) attritus Chamberlin, Geol. Wisconsin, 1, 1883, p.172, fig.Dekayia attrita Nicholson, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 93, pi. 5,figs. 12, 12a; Pal. Tabulate Corals, 1879, p. 298, pi. 15, figs. 1-lc.Maysville (Fairmount): Cincinnati, Ohio, and \dcinity; Nashville and Colum-bia, Tennessee.DEKA.YIA ATTRITA Nicholson. See Dekayia aspera.Dekayia frondosa Cumings. See Heterotrypa frondosa.Dekayia frondosa var. cystata Cumings. See Heterotrypa frondosa.Dekayia inflecta Cumings. See Heterotrypa inflecta.Dekayia maculata James.Dekayia maculata James, Paleontologist, No. 5, 1881, p. 37.?Bassler, Proc. U. S.Nat. Mus., 30, 1906, p. 35, pi. 2, figs. 13, 14.Monticulipora (Dekayia) maciUata J. F. James, Jour. Cincinnati Soc. Nat. Hist.,18, 1896, p. 116, fig. 11.Eden (McMicken): Loveland and Cincinnati, Ohio, and vicinity.Dekayia magna Cumings.Dekayia magna Cumings, Amer. Geol., 28, 1901, p. 375, pi. 34, figs. 1-6; 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 815, pi. 13, figs. 6, 6a; pi. 28,fig. 8.Maysville (Bellevue): Vevay, etc., Indiana; Cincinnati, Ohio, and vicinity.Dekayia multispinosa Uhich.Dekayia multispinosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 154,pi. 6, figs. 8, 8a.Maysville (Corryville): Cincinnati, Ohio, and vicinity.Eolotype.?Cat. No. 43656, U.S.N.M.Dekayia obscura Cumings. See Dekayella obsciu-a.Dekayia paupera Ulrich. See Heterotrypa paupera.Dekayia pelliculata Ulrich.Dekayia pelliculata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 150,pi. 6, figs. 9, 9a.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 818, pi. 13, figs. 4, 4a; pi. 28, fig. 5.Monticulipora (Dekayia) pelliculata J. F. James, Jour. Cincinnati Soc. Nat. Hist.18, 1896, p. 117.Maysville (Fairmount): Cincinnati, Ohio, and vicinity.Section of holotype.?Gat. No. 43657, U.S.N.M.Dekayia perfrondosa Cumings. See Heterotrypa frondosa.Dekayia perfrondosa-subpulchella Cumings. See Heterotrypa eubpulchclla.Dekayia prolifica Cumings. See Heterotrypa subramosa prolifica.Dekayia subfrondosa Cumings. See Heterotrypa subfrondosa.Dekayia subpulchella Cumings. See Heterotrypa subpulchella. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 393Dekatia subramosa Cuminga. See Heterotrypa eubramosa.Dekayia trentonensis Ulrich. See Dekayella trentonensis.Dekayia ulrichi Cumings. See Dekayella ulrichi.Dekayia ulrichi-expansa Cumings. See Heterotrypa lobata.Dekayia ulrichi-lobata Cuminga. See Heterotrypa lobata.Dekayia ulrichi var. robusta Nickles and Bassler. See Dekayella ulrichi.DELTACRINUS Ulrich. Genotype: Cheirocrinus clarus Hall.Deltacriuus Ulrich, 14th Rep. Geol. Surv. Minnesota, 1886, p. 109, lig. 2.?Wach-smuth and Springer, Proc. Acad. Nat, Sci. Philadelphia, 1886, p. 201 (Rev.Pal., 3, sec. 2, p. 277).?Miller, N. A. Geol. Pal., 1889, p. 237.?Bather,Treatise on Zool. (Lankester), pt. 3, 1900, p. 148.?Springer, Zittel-EastmanTextb. Pal., 2d. ed., 1913, p. 213.Calceocrinus (part) Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1875, footnote, pi. 9; ibid., Mus. ed., 1879, p. 146, ligs. 1, 2; 11th Ann. Rep.Indiana Geol. Nat. Hist., 1882, p. 281.Deltacrinus alleni (Rowley).Calceocrinus alleni Rowley, Amer. Geol., 34, 1904, p. 275, pi. 16, figs. 30-33.Upper Medinan (Edgewood): Watson Station, Pike County, Missouri.Deltacriuus coutractus (Ringueberg).Calceocrinus coutractus Ringueberg, Annals New York Acad. Sci., 4, 1889, p. 404,pi. 10, fig. 12.Deltacrinus contractus Kindle, U. S. Geol. Surv., Geol. Atlas, U. S., folio 190,1913, pp. 1-25, pis.Niagaran (Lockport-Gasport member): Lockport, New York.Deltacrinus halli (Ringueberg).Calceocrinus sp. Hall, Pal. New York, 2, 1847, p. 352, pi. 85, figs, 5, C.Calceocrinus halli Ringueberg, Annals New York Acad. Sci., 4, 1889, p. 403, pi.10, fig. 9.Clinton (Rochester): Middleport, New York.Observation.?Hall based the genus Calceocrinus upon the specimen figuredin 1847, but not named specifically.Deltacrinus indianensis (Miller).Calceocrinus indianensis Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res.,1892, p. 645, pi. 6, fig. 37. (Adv. sheets, 1891, p. 35.)Niagaran (Laurel): St. Paul, Indiana.Deltacrinus stigmatus (Hall).Cheirocrinus stigmatus Hall, Trans. Albany Inst., 4, 1863, p. 225. (Abstract,p. 31.)Calceocrinus stigmatus Shumard, Trans. Acad. Sci. St. Louis (Cat. Pal, Foss.),2, 1866, p. 358.?Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1875, 1877, pi. 19, figs. 9-11; mus. ed., 1879, p. 147, pi. 19, figs. 9-11; 11thAnn. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 281, pi. 19, figs. 9-11.Deltacrinus stigmatus Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Minnesota, 1886,p. Ill, 113 (gen. ref.).Niagaran (Waldron): Waldron, Indiana. 394 BULLETIN f>2, UNITED STATES NATIONAL MUSEUM.Deltacriuus tunicatus (Hall).Calceocrinus tunicatus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed.,1879, p. 147, fig. 1; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p.281, fig. 1.Niagaran (Waldron): Waldron, Indiana.Deltacrinus typus (Ringueberg).Calceocrinus typus Ringueberg, Annals New York Acad. Sci., 4, 1889, p. 402,pi. 10, fig. 8.Clinton (Rochester): Lockport, New York.Delthyris acutilirata Conrad. See Platystrophia acutilirata.Delthyris bialveata Conrad. See Spirifer (Eospirifer) radiatus.Delthyris brachynota Hall. See Platystrophia biforata.Delthyris crispa Dalman. See Spirifer (Delthyris) crispus.Delthyris decemplicatus Hall. See Spirifer (Delthyris) sulcata.Delthyris expansus Emmons. See Pterotheca expansa.Delthyris lynx Hall. See Platystrophia biforata and P. lynx.Delthyris niagarensis Owen. See Spirifer (Delthyris) niagarensis.Delthyris plicatus Owen. See Spirifer (Delthyris) vanuxemi.Delthyris radiata Billings. See Spirifer (Eospirifer) radiatus.Delthyris rugatina Conrad. See Spirifer (Eospirifer) sulcata.Delthyris? rugicosta Schuchert. See Spirifer (Delthyris) rugicosta.Delthyris sinuatus Hall. See Bilobites bilobus.Delthyris staminea Hall. See Spirifer (Delthyris) crispus.Delthyris sulcata Hisinger. See Spirifer (Delthyris) sulcata.DELTOCERAS Hyatt. Genotype: D. planum Hyatt.Deltoceras Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 449.?Miller, N. A. Geol.Pal., 2d App., 1897, p. 772.?Ruedemann, Bull. New York State Mus., 90,1906, p. 480.Deltoceras planum Hyatt.Deltoceras planum Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 450.Canadian (Quebec): Port au ChoLx, Newfoundland.Deltoceras vanlngeni Ruedemann.Deltoceras vaningeni Ruedemann, Bull. New York State Mus., 90, 1906, p. 480,pis. 25-28, figs. 39-41.Chazyan (Crown Point): Valcour Island, New York.Demirastrites urceolus Eisel. See Monograptus urceolus.DENDROCLONELLA Rauff. Genotype: D. rugosa Rauff.Dendroclonella Rauff, Palseontographica, 41, 1895, p. 252.Dendroclonella rugosa Rauff.Dendroclonella rugosa Rauff, Palseontographica, 41, 1895, p. 252, pi. 18, figs. 8,3-6; pi. 24, fig. 1.Niagaran (Brownsport): Perry County, Tennessee. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 395DENDROCRINUS Hall. Genotype: D. longidactylus Hall.Dendrocrinus Hall, Pal. New York, 2, 1852, p. 193.?Pictet, Traite de Pal., 2d ed.,4, 1857, p. 317.?Billings, Geol. Sun^ Canada, Rep. Progr. for 18.53-1856, 1S57,p. 264; Geol. Surv. Canada, dec. 4, 1859, p. 35, fig. 14.?Hall, 24tli Rep. NewYork State Cab. Nat. Hist., 1872, p. 208.?Meek, Geol. Surv. Ohio, Pal., 1,1873, p. 20.?Zittel, Handb. Pal., 1, 1879, p. 361.?Wachsmuth and Springer,Proc. Acad. Nat. Sci. Philadelphia, 1879, pp. 285, 289, 298 (Rev. Pal., pt. 1,pp. 62, 66, 75); ibid., 1885, pp. 115, 116; ibid., 1890, pp. 380-384; Amer.Jour. Sci., 3d ser., 26, 1883, p. 376, fig. 5.?Miller, N. A. Geol. Pal., 1889, p.238, fig. 282.?Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 324, pi. 14,fig. 15; pi. 15, fig. 4; Treatise on Zool., pt. 3, Echinoderma, London, 1900,p. 179, fig. 96.?Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p.155.?Zittel, Grundzuge Pal., 1, 1910, p. 132.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 711.?Grabau and Sliimer, N. A. IndexFossils, 2, 1910, p. 504.?Springer, Geol. Surv. Canada, Mem. 15P, 1911,p. 29; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 215.Dendrocrinus acutidactylus Billings.Dendrocrinus acutidactylus BilUngs, Geol. Surv. Canada, Rep. Progr., 1853-1856,1857, p. 266; Geol. Surv. Canada, dec. 4, 1859, p. 37, pi. 3, figs. 2a, b.Trenton (Curds\alle): Montreal, Quebec; Mercer County, Kentucky.Dendrocrinus alternatus (Hall).Poteriocrinus alternatus Hall, Pal. New York, 1, 1847, pp. 83, 316, pi. 28, figs.la-f.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 224, fig. 77.Cyathocrinus? alternatus Hall, Pal. New York, 1, 1847, p. 316.Homocrinus alternatus Hall, Pal. New York, 2, 1852, p. 185.Dendrocrinus alternatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76).Trenton: Turin, Lowville, Middleville, etc., New York.Dendrocrinus ancilla Hall. See Homocrinus ancUla.Dendrocrinus angulatus Billings. See Palaeocrinus angulatiis.Dendrocrinus angustatus (Meek and Worthen).Homocrinus angustatus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia,1870, p. 30; Geol. Surv. Illinois, 6, 1875, p. 492, pi. 23, fig. 8.Dendrocrinus angustatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76).Richmond (Maquoketa): Mount Carroll, Illinois.Dendrocrinus caduceus (Hall).Poteriocrinus (Dendrocrinus) caduceus Hall, 24th Rep. New York State Cab.Nat. Hist, 1872, p. 208, pi. 5, figs. 7, 8 (adv. sheets 1866, p. 3; 1871, pi. 1,figs. 7, 8).Poteriocrinites (Dendrocrinus) caduceus Meek, Geol. Surv. Ohio, Pal., 1, 1873,p. 26, pi. 3 bis, figs. la-d.?Lesley, Geol. Sui-v. Pennsylvania, Rep. P4, 1889,p. 738, figs.Dendrocrinus caduceus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76); ibid., 1890, p. 392, pi. 10, fig.11.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 505, fig. 1819.Richmond (Waynesville-Liberty) : Near Lebanon, etc., Ohio.Dendrocrinus easel Meek.Pentacrinite Christy, Letters on Geology, 1848, pi. 2.Dendrocrinus Casei Meek, Amer. Jour. Sci., 3d ser., 2, 1871, p. 295.?Foerste,Amer. Geol., 12, 1893, pp. 270, 340.?Bather, Geol. Mag., dec. 4, 6, 1899, p. 35, 396 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dendrocrinus easel?Continued.fig. 13; Treatise on ZooL, pt. 3, Ecliinoderma, London, 1900, p. 120, fig.26, 3.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 717,pi. 4, figs. 2, 2b.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 505.Poteriocrinites (Dendrocrinus) Casei Meek, Geol. Siu-v. Ohio, 1, pt. 2, 1873, p. 28,pi. 3 bis., figs. 2a-c.Poteriocrinites (Dendrocrinus) caseyi Lesley, Geol. Surv. Pennsylvania, Rep.P 4, 1889, p. 739, fig.Richmond (Whitewater): Richmond, Indiana; Oxford, etc., Ohio.Dendrocrinus celsus Ringueberg.Dendrocrinus celsus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1888, p. 132,pi. 7, fig. 3.Clinton (Rochester): Lockport, New York.Dendrocrinus cincinnatiensis (Meek).Poteriocrinites (Dendrocrinus) Cincinnatiensis Meek, Proc. Acad. Nat. Sci.Philadelphia, 1871, p. 312; Geol." Surv. Ohio, Pal., 1, 1873, p. 20, pi. 3 bis, figs.5a, b.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 739, figs.Dendrocrinus Cincinnatiensis Wachsmuth and Springer, Proc. Acad. Nat. Sci.Philadelphia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76).?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 505, fig. 1818.Maysville (Fairmount): Cincinnati, Ohio, and vicinity.Dendrocrinus conjugans Billings. See Cupulocrinus conjugans.Dendrocrinus curtus Ulrich. See Merocrinus curtus.Dendrocrinus cylindricus Billings. See Cupulocrinus conjugans.Dendrocrinus dyeri (Meek).Poteriocrinites (Dendrocrinus) Dyeri, Meek, Proc. Acad. Nat. Sci. Philadelphia,1872, p. 310;- Geol. Surv. Ohio, Pal., 1, 1873, p. 24, pi. 3 bis, figs. 3a, b.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 739, figs.Dendrocrinus Dyeri Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel-phia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76).Trenton (Upper): River quarries, Covington, Kentucky.Dendrocrinus erraticus Miller.Dendrocrinus erraticus Miller, Joiu". Cincinnati Soc, Nat. Hist., 4, 1881, p. 316,pi. 8, figs. 1, la.Richmond: Drift at Cincinnati, Ohio,Dendrocrinus gracilis (Hall).Poteriocrmus gracilis Hall (not McCoy), Pal. New York, 1, 1847, p. 84, pi. 28,figs. 2a-f.Poteriocrinus subgracilis D'Orbigny, Prodrome Pal., 1, 1849, p. 23.Homocrinus gracilis Hall, Pal. New York, 2, 1852, p. 158.Poteriocrinites gracilis Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 21, footnote.Dendrocrinus gracilis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel-phia, 1879, p. 299 (Rev. Pal., pt. 1, p. 76).Trenton: Middleville, New York.Dendrocrinus gregarius Billings.Dendrocrinus gregarius Billings, Geol. Surv, Canada, Rep. Progr. 1853-1856,1857, p. 265; Geol. Surv. Canada, dec. 4, 1859, p, 36, pi, 3, figs. la-c.Trenton: Ottawa, Ontario. BIBLIOGBAPHIC LIST OF GENERA AND SPECIES. 397Dendrocrinus humilis Billings. See Cupulocrinus humilis.Dendrocrinus Jewettii Billings, See Cupulocrinus jewetti.Dendrocrinus latibrachiatus Billings. See Cupvilocrinus latibrachiatus.Dendrocrinus longidactylus Hall.Dendrocrinus longidactylus Hall, Pal. New York, 2, 1852, p. 193,-pl.43, figs, la-k;pi. 42, figs. 7a, b.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 317, pi. 100, fig.14.?Bather, Geol. Mag., dec. 4. 6, 1899, p. 35, fig. 12; Treatise on Zool., pt. 3,Echinoderma, London, 1900, p. 120, figs. 26, 2.?Springer, Mem. Geol. Surv. ? Canada, 15P, 1911, p. 29, fig. 1.Clinton (Rochester): Lockport, New York.Dendrocrinus modestus Safford.Dendrocrinus modestus Safford, Geol. Tennessee, 1869, p. 285 (not defined).Stones River (Lebanon): Central basin of Tennessee.Dendrocrinus naviglolum Miller.Dendrocrinus navigiolum Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 235,pi. 7, figs. 5, 5a (6, 6a).Eden (Fulton): First Ward, Cincinnati, Ohio.Dendrocrinus? nodobrachiatus Ringueberg.Dendrocrinus? nodobrachiatus Ringueberg, Annals New York Acad. Sci., 5, 1890,p. 303, pi. 3, fig. 6.Niagaran (Lockport-Gasport member): Lockport, New York.Dendrocrinus nucleus Hall. See Botryocrinua nucleus.Dendrocrinus oswegoensis Meek and Worthen.Dendrocrinus Oswegoensis Meek and Worthen, Geol. Surv. Illinois, 3, 18G8, p.333, pi. 4, fig. 4.?Miller, N. A. Geol. Pal., 1889, p. 238, fig. 284.Richmond (Maquoketa): Oswego, Kendall County, Blinois.Dendrocrinus polydactylus Wachsmuth and Springer. See Cupulocrinus poly-dactylus.Dendrocrinus posticus (Hall).Poteriocrinus posticus Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p.209, pi. 5, figs. 5, 6 (extract 1871, pi. 1, figs. 5, 6.).Poteriocrinites (Dendrocrinus) posticus Meek, Geol. Surv. Ohio, Pal., 1, 1873, p.22, pi. 3 bis, figs. 4a-c.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889,p. 740, figs.Dendrocrinus posticus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1879, p. 300 (Rev. Pal., pt. 1, p. 77).Richmond (Waynesville-Liberty): Southwestern Ohio.Dendrocrinus proboscldiatus Billings.Dendrocrinus proboscldiatus Billings, Geol. Surv. Canada, Rep. Progr. for1853-56, 1857, p. 267; Geol. Surv. Canada, dec. 4, 1859, p. 38, pi. 3, figs.3a-c; Ottawa Nat., 1, 1887, p. 53, pi. figs.?Springer, Mem. Geol. Surv.Canada, 15 P, 1911, p. 37, (loc. occ.)Trenton (Curdsville): Montreal, Quebec; Kirkfield, Ontario.Dendrocrinus retractllls Walcott.Dendrocrinus retractilis Walcott, 35th Rep. New York State Mas. Nat. Hist., 1884,p. 211, pi. 17, fig. 4.Trenton: Trenton Falls, New York. 398 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Deudrocrlnus rusticus Billings.Dendrocrinus rusticus Billings, Geol. Surv. Canada, Rep. Prog, for 1853-56, 1857^p. 270; Geol. Surv. Canada, dec. 4, 1859, p. 41, pi. 3, figs. 7a, 7b.Trenton: Ottawa, Ontario.Dendrocrinus (Homocrinus) scoparius Wachsmuth and Springer. See Lasiocri-nus scoparius.Dendrocrinus similis Billings.Dendrocrinus similis Billings, Geol. Surv, Canada, Rep. Progr. for 1853-56, 1857?p. 267; Geol. Surv. Canada, dec. 4, 1859, p. 40.Trenton: Ottawa, Ontario.Dendrocrinus tener Billings.Dendrocrinus tener Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 9.Richmond (Charleton) : West End, Anticosti.Observation.?Not recognized. Twenhofel reports the specimen as too poor fordetermination.Dendrocystis Haeckel. See Dendrocystites Barrande.DENDROCYSTITES Barrande. Genotype: D. sedgwicld Barrande^?Syringocrinus Billings, Canadian Org. Rem., doc. 4, 1859, p. 65.?Wachsmuthand Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 411 (Rev. Pal.,pt. 2, p. 237).?Miller, N. A. Geol. Pal., 1889, p. 285.?Bather, Treatise onZool., pt. 3, Echinoderma, London, 1900, p. 203.?Zittel, Grundzuge Pal., 1,1910, p. 156.Dendrocystites Barrande, Extraits du Syst. Silur., 1887, p. 219; Syst. Silur.Boheme, 7, p. 142.?Jaekel, Zeitschr. deutsch. geol. Gesell., 52, 1901, p. 673.Dendrocystis Haeckel, Amphor. und Cystoid., 1, 1900, p. 47.?Delage and Herou-ard, Zool. Concrete, 3, 1904, p. 408.?Bather, Roy. Soc. Edinburgh, 49, pt. 2.1913, p. 371, text figs. 6-9.Dendrocystites? paradoxica (Billings).Syringocrinus paradoxicus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 65, pi.10, fig. 14.Syringocrinus paradoxus Bather, Treatise on Zool., Echinoderma, 1900, p. 48.Dendrocystisf?) paradoxica Bather, Trans. Roy. Soc. Edinburgh, 49, pt. 2, 1913,p. 397, fig. 13.Trenton: Beauport, near Quebec, Canada.Observation.?See Bather (op. cit., 1913) for discussion of Syringocrinus andS. paradoxica.DENDROGRAPTUS Hall. Genotype: D. hallianus Prout.Dendrograptus Hall, Geol. Sui-v. Canada for 1857, Rep. Progr., 1858, p. 143; Rep.Geol. Surv. Wisconsin, 1, 1862, p. 21; Geol. Surv. Canada, dec. 2, p. 126, 127,figs, a, b,c.?Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, p. 142. ? Carruthers, Geol. Mag., 5, 1868, p. 73, 130.?Hall, 20th Rep. New York StateCab. Hist., 1868, p. 218; rev. ed., p. 252.?Nicholson, Mon. British Grapt.,1872, p. 127.?Zittel, Handb. Pal., 1, 1879, p. 289.?Spencer, Bull. Mus.Univ. State Missouri, 1, 1884, p. 16; Trans. Acad. Sci. St. Louis, 4, 1884, p..262, 566.?Miller, N. A. Geol. Pal., 1889, p. 184.?James, Jour. CincinnatiSoc. Nat. Hist., 14, pt. 2, 1892, p. 151.?Pocta, Syst. Sil. Centre Boheme, 8,pt. 1, 1894, p. 165.?Roemer and Freeh, Leth. geog., 1, Theil, Leth. Pal., 1,3 Lief., 1897, p. 577.?EUes and Wood, Mon. British Grapt., Pal. Soc, 1903,p. xli.?Ruederaann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 578, 579.Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 26.?Ruedemann, Zittel-Eastman Textb., Pal., 2d. ed., 1913. p. 128. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 399Dendrograptus arundinaceus Gurley. See Mastigograptus arundiuaceus.Dendrograptus compactus Walcott. See Callograptus compactus.Dendrograptus dawsonl Spencer.Dendrograptus dawsoni Spencer, Canadian Nat., 10, 1882, p. 165; Trana. Acad.Sci. St. Louis, 4, 1884, p. 568, pi. 1, fig. 5; Bull. Mus. Univ. Missouri, 1, 1884,p. 18, pi. 1, fig. 5.?Gurley, Jour. Geol., 4, 1896, pp. 94, 308.?Bassler, Bull.U. S. Nat. Mus., 65, 1909, p. 6, fig. 1.Niagaran dolomite: Hamilton, Ontario.Dendrograptus? (Callograptus?) diffusiia Hall. See Callograptus diftusus.Dendrograptus divergens Hall.Dendrograptus divergens Hall, Geol Sm-v. Canada, dec. 2, 18G5, p. 129, pi. 17,figs. 3, 4.?Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 664, pi.36, figa. 6a, b.Canadian (Levis, Didymograptus zone): Point Levis, Quebec.Dendrograptus dubius Miller.Dendrograptus simplex Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.);Trans. Acad. Sci. St. Louis, 4, 1884, p. 567, pi. 1, fig. 4; Bull. Mus. Univ.State Missouri, 1, 1884, p. 17, pi. 1, fig. 4.Dendrograptus dubius Miller, N. A. Geol. Pal., 1889, p. 184.?Gurley, Jour.Geol., 4, 1898, pp. 94, 308.?Bassler. Bull. U. S. Nat. Mus., 65, 1909, pp. 7, 8,figs. 2, 8.Niagaran dolomite: Hamilton, Ontario.Dendrograptus erectus Hall.Dendrograptus erectus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 130, pi. 17, fig. 7.Canadian (Levis, Didymograptus zone): Point Levis, Quebec.Dendrograptus flexuosus Hall.Dendrograptus flexuosus Hall, Geol Surv. Canada, Can. Org. Rem., dec. 2, 1865.p. 127, pi. 17, figs. 1, 2, p. 128, fig. 3; 20th Rep. New York State Cab. Nat.Hist., 1868, p. 177, fig. 9; rev. ed., 1870, p. 209, fig. 9, p. 224.?Hopkinsonand Lapworth, Quar, Jour. Geol. Soc, 31, 1875, p. 662, pi. 36, figs. 3a-3d.?Roemer and Freeh, Leth. Pal., 1, 1897, p. 578.?Ruedemann, Mem. NewYork State Mus., 7, 1904, p. 579, pi. 4, figa. 5, 6, 8-10.?Grabau andShimer, N. A. Index Fossils, 1, 1906, p. 26, fig. 37.Dendrograptus cf. gracilis Ruedemann, New York State Pal. Ann. Rep., 1902,p. 555.Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Deepkill-New York (Deepkill, D. dentatus zone). Lower and Middle Arenig ofWales.Dendrograptus fluitans Ruedemann.Dendrograptus n. sp. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 555.Dendrograptus fluitans Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904.pp. 582-583, pi. 4, figs. 11, 12.Canadian (Deepkill): Deepkill, Rensselaer County, New York (Tetragraptuszone).Dendrograptus frondosus Spencer.Dendrograptus frondosus Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.);Trans. Acad. Sci. St. Louis, 4, 1884, p. 568, pi. 1, fig. 6; Bull. Mus. Univ.State Missouri, 1, p. 18, pi. 1, fig. 6, 6a.?Gurley, Jour. Geol., 4, 1896, pp. 64,308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 8, fig. 7.Niagaran dolomite: Hamilton, Ontario. 400 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dendrograptus fruticosus Hall.Dendrograptus fruticosus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 131, pi. 17,figs. 8, 9.Canadian (Levis, Didymograptus dentatus zone): Point Levis, Quebec.Dendrograptus gracilis Hall.Dendrograptus gracilis Hall, Geol. Sui-v. Canada, dec. 2, 1865, p. 132, pi. 18,figs. 5-6; 20tli Rep. New York State Cab. Nat. Hist., 1868, p. 199, pi. 4, fig.11; rev. ed., 1870, p. 230, pi. 4, fig. 11; p. 224.Canadian (Levis, Didymograptus zone): Point Levis, Quebec.Dendrograptxis cf. GRACixis Ruedemann. See Dendrograptus flexuosus.Dendrograptus gracilis var. crassa James. See Buthotrephis gracilis crassa.Dendrograptus (Psilophyton) gracillimus Walcott. See Mastigograptus gracil-Umus.Dendrograptus gracillimus var. intermedia James. See Buthotrephia gracilisintermedia.Dendrograptus linearis Carrutbers. See Pleurograptus linearis.Dendrograptus novellu^s Hall. See Chaunograptus novellus.Dendrograptus ontarioensis Bassler.Dendrograptus ontarioensis Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 12, 13,pi. 1, fig. 4, fig. 12.Niagaran dolomite: Hamilton, Ontario.Dendrograptus phainotheca Gurley.Dendrograptus phainotbeca (Giu-ley MS.) Bassler, Bull. U. S. Nat. Mus., 65,1909, pp. 11, 12, pi. 2, fig. 2; fig. ILNiagaran dolomite: Hamilton, Ontario.Dendrograptus praegracilis Spencer.Dendrograptus prsegracilis Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.);Trans. Acad. Sci. St. Louis, 4, 1884, p. 569, pi. 1, fig. 7; Bull. Mus. Univ.State Missouri, 1, 1884, p. 19, pi. 1, fig. 7.?Gurley, Jour. Geol., 4, 1896, pp.95-308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 9, pi. 2, fig. 3, textfigs. 4, 10.Niagaran dolomite: Hamilton, Ontario.Dendrograptus? problematicus (Spencer).Inocaulis(?) problematica Spencer, Canadian Nat., n. s., 8, 1878, p. 458; ibid.,10, 1882, p. 165; Bull. Mus. Univ. State Missoiui, 1, 1884, pp. 14, 36, pi. 5,fig. 3; Trans. Acad. Sci. St. Louis, 4, 1884, p. 564, pi. 5, fig. 3.?Gurley,Jour. Geol., 4, 1896, pp. 99, 309.Dendrograptus? problematicus Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 10,pi. 1, figs. 1,2, text fig. 6.Dendrograptus sp. Grant, Jour. Proc. Hamilton Assoc, 16, 1900, p. 102, fig.Niagaran dolomite: Hamilton, Ontario.Dendrograptus ramosus Spencer.Dendrograptus ramosus Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.);Trans. Acad. Sci. St. Louis, 4, 1884, p. 667, pi. 1, fig. 3; Bull. Mus. Univ.State Missom-i, 1, 1884, pp. 14, 17, pi. 1, fig. 3, 3a.?hurley. Jour. Geol. 4,1896, pp. 95, 308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 8, pi. 1, fig. 3;text figs. 3, 9.Niagaran dolomite: Hamilton, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 401Deudrograptus rectus Ruedemanu.Deudrograptiis rectua Ruedemann, Mem. New York State Mua., 11, 1908, p. 145,pi. 8, fig. 2, text fig. 51.Upper Clinton: Clinton, Oneida County, New York.Dendrograptus serpens Hopkinson.Dendrograptus serpens Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875,p. 665, pi. 37, fig. 3.Dendrograptus cf. serpens Gm-ley, Joiu*. Geol., 4, 1896, p. 84.Canadian: Europe; Summit, Nevada.Dendrograptus simplex Spencer. See Dendrograptus dubius.Dendrograptus simplex Walcott. See Mastigograptus simplex.Dendrograptus splnosus Spencer.Dendrograptus spinosua Spencer, Canadian Nat., 10, 1882, p. 165 (nom. nud.);Trans. Acad. Sci. St. Louis, 4, p. 569, pi. 1, fig. 8; Bull. Mus. Univ. StateMissouri, 1, pp. 14, 19, pi. 1, fig. 8.?Gmley, Jour. Geol., 4, 1896, pp. 95,308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 10, fig. 5.Niagaran dolomite: Hamilton, Ontario.Dendrograptus striatus Hall.Dendrograptus striatus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 129, pi. 17,figs. 5-6.Canadian (Levis, Didymograptus dentatus zone): Point Le\ds, Quebec.Dendrograptus(?) succulentus Ruedemann.Dendrograptus n. sp. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 570.Dendrograptus(?) succulentus Ruedemann, Mem. New York State Mus., 7, pt.1, 1904, pp. 581-582, pi. 4, figs. 1-4, text figs. 16, 17.Canadian: Deepkill, Rensselaer County, New York (Deepkill, Diplograptusdentatus zone); Point Levis, Quebec (Levis, D. dentatus zone).Dendrograptus tenuiramosus Walcott. See Mastigograptus tenuixamosus.Dendrograptus unilateralis Gurley.Dendrograptus imilateralis Gurley, Jour. Geol., 4, 1896, p. 84.Trenton (Magog): Magog, Quebec.DEOCRINUS Hudson. Genotype: Rhodocrinus asperatus Billings.Deocrinus Hudson, Bull. New York State Mus., 107, 1907, p. 121.Deocrlnus asperatus (Billings).Rhodocrinus asperatus Billings, Geol. Sui^v. Canada, dec. 4, 1859, p. 27, pi. 1,figs. 4a-4e.Archaeocrinus asperatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1886, p. 301.Deocrinus asperatus Hudson, Bull. New York State Mus., 107, 1907, p. 122, fig.5, pi. 8.Chazyan (Aylmer): Near Montreal, Quebec.DERMATOSTROMA Parks. Genotype: Stromatopora papillatum James.Dermatostroma Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 29.Dermatostroma canallculatum Parks.Dermatostroma canaliculatum Parks, Univ. Toronto Studies, Geol. Series, 7,1910, p. 35, pi. 24, figs. 8, 9.Richmond (Waynesville) : Waynesville, Ohio.Eolotype.?C&t. No. 40082, U.S.N.M.84243??Bull. 92?15 26 402 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dermatostroina cavernosum Parks.Dermatoatroma cavernosum Parks, Univ. Toronto Studiee, Geol. Series, 7, 1910,p. 36, pL 24, fig. 12-13.Trenton (Catheys): Five miles east of Moimt Pleasant, Tennessee.Holot7jpe.?Gat. No. 49508, U.S.N.M.Dermatostroma corrugatum (Foerste).Labechia(?) cornigata Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 86, pi.1, fig. 11.Dermatostroma corrugatum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910,p. 34, pi. 24, figs. 7, 10, 11, 14.Richmond (^^Tiitewater): Near Wilmington, Ohio.Dermatostroma glyptum (Foerste).Labechia corrugata glypta Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 87.Dermatostroma glyptum Parks, LTniv. Toronto Studies, Geol. Series, 7, 1910, p. 33,pi. 24, figs. 4, 5, 6.Richmond (Whitewater): Near Wilmington, Ohio.Dermatostroma papillatum (James).Stromatopora papillata James, Paleontologist, 1, 1878, p. 1.?Mickleborough andWetherby, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 81.?James, ibid.,9, 1886, p. 251; ibid., 15, 1892, p. 91.Dermatostroma papillatum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910,p. 30, pi. 23, figs. 8-10.Maysville and Richmond: Cincinnati, Ohio, and \dcinity; Indiana; KentuckyTennessee; Virginia.Dermatostroma papillatum diversum Parks.Dermatostroma papillatum diversum Parks, Univ. Toronto Studies, Geol. Series,7, 1910, p. 31, pi. 23, fig. 12.Maysville (Corryville): Cincinnati, Ohio.Holotype.?Csit. No. 56844, U.S.N.M.Dermatostroma scabrum (James).Stromatopora scabra James, Paleontologist, 3, 1879, p. 18.?J. F. James, Jour.Cincinnati Soc. Nat. Hist., 9, 1886, p. 251; ibid., 1892, p. 91.Labechia scabra Harper and Bassler, Cat. Fossils, Trenton and Cincinnati PeriodsVicinity Cincinnati, 1896, p. 3.Dermatostroma scabrum Parks, Univ. Toronto Studies, Geol. Series, 7, 1910, p. 31,pi. 24, figs. 1-3.Eden-Richmond: Lebanon, Cincinnati, etc., Ohio; Indiana; Kentucky; Ten-nessee.Plesiotype.?G&t. No. 40080, U.S.N.M.Dermatostroma tyronense Foerste.Dermatostroma tyronensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912,p. 139, pi. 10, figs. 5a, b.Black River (Lowville): High Bridge, Kentucky.DESMOGRAPTUS Hopkinson. Genotype: D, cancellatus Hopkinson.Desmograptus Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 668. ? Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 185.?Ruedemann, Mem.New York State Mus., 7, pt. 1, 1904, p. 609.?Grabau and Shimer, N. A.Index Fossils, 1, 1906, p. 26.?Ruedemann, Zittel-Eastman Textb. Pal.,1913, p. 128. BIBLIOGRAPHIC LIST OF GEZSTEEA AND SPECIES. 403Desmograptus cancellatus (Hopkinson).Dictyograptus (Desmograptus) cancellatus Hopkinson, Quart. Jour. Geo!. Soc.Loudon, 31, 1875, p. 668, pi. 36, figs. 11a, lib.Dictyonema (Desmograptus) cancellatum Buedemann, New York State Pal.,Ann. Rep. 1902. p. 570.Desmograptus cancellatus Ruedomann, Mem. New York State Mus., 7, pt. 1,1901, pp. 610, 611, pi. 3, figs. 5-8, 31.?Grabau and Shimer, N. A. IndexFossils, 1, 1906, p. 26, fig. 36.Desmograptus macrodictyum Gurley, Jour. Geol., 4, 1896, p. 83.Lower Ordovician: St. Davids, Wales (Lower Arenig); Point Levis, Quebec(Levis); Deepkill, Rensselaer County, New York (Deepkill, Diplograptusdentatus zone).Desmograptus intrlcatiis Ruedomann.Dictyonema (Desmograptus) n. sp. Ruedemann, New York State Pal., Ann. Rep.1902, p. 570.Desmograptus intricatus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,pp. 611, 612, pi. 3. figs. 1-4, text figs. 32, 33; fig. 30, p. 609.Canadian (Deepkill-Diplograptus dentatus zone) : Deepkill, Rensselaer County,New York.Desmograptus macrodictyum Gurley. See Desmograptus cancellatus.Desmograptus pergracilis (Hall and \Vliitfield).Dictyonema pergracilis Hall and Whitfield, 24tli Rep. New York State C?b. Nat.Hist., 1872, p. 181 (abstract, p. 1); 27th Rep. New York State Cab. Nat.Hist., 1875, pi. 9, fig. 38.?Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, pp.564, 577; Bull. Mus. Univ. State Missouri, 1, 1884, p. 27.?Foerste, Bull. Sci.Lab. Denison Univ., 2, pt. 1, 1887, p. 107.?Pocta, Syst. Sil. Boheme, 8, pt. 1,1894, p. 193.?Gurley, Jour. Geol.. 4, 1896, p. 308.Desmograptus pergracilis Ruedemann, Mem. New York State Mus., 11, pt. 2,1908, p. 179.Niagaran (Louisville): Loviisville, Kentucky.Desmograptus tenulramosus Ruedemann.Desmograptus tenuiramosus Ruedemann, Mem. New York State Mus., 11, pt. 2,1908, pp. 177, 178, pi. 1, fig. 2, text figs. 84, 85.Chazyan (Normanskill): Glenmont, Albany County, New York.DIABOLOCRINUS Wachsmuth and Springer.Genotype: D. perplexus Wachsmuth and Springer.Diabolocrinus Wachsmuth and Springer, Mem. Miis. Comp. Zool. Harvard, 20,1897, pp. 211, 249.?Bather, Treatise on Zool., pt. 3, Echinoderma, London,1900, p. 200.?Zittel, Grundzuge Pal., 1, 1910, p. 161.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 188.Diabolocrinus asperatus (Miller and Gurley).Archseocrinus asperatus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5,1894, p. 19, pi. 2, figs. 7-9.?Miller, Sec. App., N. A. Geol. Pal., 1897, p. 734,figs. 1296, 1297.Diabolocrinus hieroglyphicus Wachsmuth and Springer, Mem. Mus. Comp. Zool.,Harvard, 20, 1897, p. 252 pi. 10, fig. 5a-c.Chazyan (Ottosee): Near Knoxville, Tennessee.Diabolocrinus hieroglyphicus Wachsmuth and Springer. See Diabolocrinusasperatus. 404 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dlabolocrlnus perplexus Wachsmuth and Springer.Diabolocrinus perplexiis Wachsmuth and Springer, Mem. Mub. Oomp. Zool.Harvard, 20, 1897, p. 250, pi. 11, fig. la, b.t'hazyan (Ottosee): Near Knoxville, Tennessee.Diabolocrinus vesperalls (White).Rhodocrinus vesperalis \Vhite, Proc. U. S. Nat. Mub., 2, 1880, p. 259, pi. 1, tiga.11, 12; 12th Ann. Rep. U. S. Geol. Surv. Terr., 1883, p. 129, pi. 35, figs. 4a, b.Diabolocrinus vesperalis Wachsmuth and Springer, Mem. Mus. Comp. Zool.,Harvard, 20, 1897, pp. 251, 262, pi. 11, figs. Ic-, d.?Wood, Bull. U. S. Nat.Mus., 64, 1909, p. 104.Gilbertsocrinites americanus Troost, Proc. Amer. Absoc. Adv. Sci., 2, 1850, p. 61(nom. nud.).Lyriocrinus Bculptilus Miller (not Hall, 1851), Jour. Cincinnati Soc. Nat. Hist.,5, 1882, p. 83, pi. 3, figs. 6a, b; p. 117 (corrected to L. sculptus on privateedition).Archseocrinus sculptus Wachsmutli and Springer, Proc. Acad. Nat. Sci. Philadel-phia, 1885, p. 320 (Rev. Pal., pt. 3, sec. 1, 1885, p. 98).?Miller, N. A. Geol.Pal., 1889, p. 225, fig. 250.Chazyan (Ottosee) : Near Knoxville, Tennessee. Erroneously cited by 'White (1880)from the Coal Measares near Humboldt, Kansas, and by Miller (1882) fromthe Helderbergian of Tennessee.Holotype and jjlesiotype.?Cat. Nos. 39970, 80321, U.S.N.M.DiAGONiELLA Rauff. See Protospongia Salter.DiAMESOPORA Ulrich (part). See Coeloclema Ulrich.DIAMESOPORA Hall. Genotype: D. dichotoma Hall.Diamesopora Hall, Pal. New York, 2, 1852, p. 158 (not defined).?Pictet, Traitsde Pal., 2d ed., 4, 1857, p. 170.?Hall and Simpson, Pal. New York, 6, pp. 15,19.?Miller, N. A. Geol. Pal., 1889, p. 300.?Simpson, 14th Ann. Rep. StateGeol. New York for 1894, 1897, p. 566.?Nickles and Bassler, Bull. U. S. Geol.Surv., 173, 1900, p. 54, 229.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p.175; Bull. New York State Mus., 45, 1901, p. 175.?Bassler, Bull. U. S. Geol.Surv., 292, 1906, p. 62.?Grabau and Shimer, N. A. Index Fossils, 1, 1907,p. 165.Diamesopora communis Ulrich. See Coeloclema commune.Diamesopora dichotoma Hall.Diamesopora dichotoma Hall, Pal. New York, 2, 1852, p. 158, pi. 40, fige. 3a-d.?Rominger, Proc. Acad. Nat. Sci. Philadelphia, 1866, p. 118.?Grabau, Bull.New York State Mus. 45, 1901, p. 175, fig. 78; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 175, fig. 78.?Bassler. Bull. U. S. Geol. Surv., 292, 1906, p. 62, pi. 21,figs. 12, 13; pi. 24, figs. 28-30.?Grabau and Shimer, N. A. Index Fossils, 1,1907, p. 166, fig. 216a, b.Clinton (Rochester): Lockport, Rochester, etc., New York; Hamilton andGrimsby, Ontario.Plesiotype?Cat. No. 35759, U.S.N.M.Diamesopora infrequens (Hall).Trematopora infrequens Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876,pi. 10, figs. 13, 14 (in error for 3, 4); ibid., Mus. ed., 1879, p. Ill, pi. 10, fig. 3(in part), 4; 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 232, pi. 9, figs. 3(in part), 4.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890 p. 1200, figs.Cceloclema infrequens Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 258.Diamesopora infrequens Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467.Niagaran (Waldron): Waldron, etc., Indiana; Newsom, Tennessee. BIBLIOGRAPHIC LIST OF flENERA AND SPECIES. 405DIamesopora osculuin (Hall).Trematopoia osculum Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876,pi. 10, figs. 3-12 (3 and 4 in error); ibid., Mus. ed., 1879, p. 110, pi. 10, figs.5-8, 11-14; nth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 231, pi. 9, figs.5-8, 11-14.?Lesley, Geol.Surv. Pennsylvania, Rep.P4, 1890, p. 1201, fig.Coeloclema osculum Ulrich. Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 258.Diamesopora osculum Ulrich, Geol. Surv. Hlinois, 8, 1890, p. 467.Niagaran (Waldron): Waldron, etc., Indiana; Newsom, Tennessee.Diamesopora oweni Uhich. See Coeloclema oweni.Diamesopora subimbricata (Hall).Trematopora subimbricata Hall, 28th Ann. Rep. New York State Mus., Mus. ed.,1879, pi. 10, figs. 9, 10; Trans. Albany Inst., 10, 1883, p. 60 (abstract, 1879,p. 4); nth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 234, pi. 9, figs. 9, 10.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1202, figs.Coeloclema imbricata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1882, p. 258.Diamesopora subimbricata Ulrich, Geol. Surv. Illinois, 8, 1890, p. 467.Niagaran (Waldron): Waldron, Indiana.Diamesopora trentonensis Ulrich. See Coeloclema trentonense.Diamesopora? tubulosa (Hall).Trematopora tubulosa Hall, Pal. New York, 2, 1852, p. 151, pi. 40A, figs. 3a-c.Diamespora tubulosa Rominger, Proc. Acad. Nat. Sci. Philadelphia, 1866, p. 119.Ukich, Geol. Surv. Illinois, 8, 1890, p. 467.Lower Clinton: Wayne County, New York.Diamesopora varia Ulrich. See Chilotrypa varia.Diamesopora vaupeli Ulrich. See Coeloclema alternatum.DIANULITES Eichwald. Genotype: D. bicomis EichwaldDianulites Eichwald, Zool. Spec, 1, 1829, p. 180; Leth. Rossica, 1, 1860, p487.?Dybowski, Die Chsetetiden der Ostbaltischen Silur-form., 1877, p14.?Zittel, Handb. Pal., 1, 1880, p. 616.?Nicholson, Genus MonticuUp'ora1881, pp. 20, 155.?Waagen and Wentzel, Pal. Indica, 13th ser., 1886, p. 874.Simpson, 14th Ann. Rep. State Geol. New York for the year 1894, 1897, p687.?Miller, N. A. Geol. Pal., 2d App. 1897, p. 728.?Nickles and BasslerBull. U. S. Geol. Surv., 173, 1900, p. 230.?Bassler, Bull. U. S. Nat. Mus.77, 1911, pp. 226-229; Zittel-Eastmau Text)). Pal., 1913, p. 335.Hexaporites Pander, Beitr. zur Geogn. d. russ. Reichs., 1830, p. 106, pi. 1, fig. 5pi. 28, fig. 8.DiANUxiTES DI8COIDEA Miller. See Mesotrypa discoidea.Dianulites dubia Miller. See Diplotryjja? dubia.Dianulites limitaris Miller. See Diplotrypa Umitaris.Dianuutes neolecta Miller. See Diplotrypa neglecta.Dianulites patella Miller. See Mesotrypa patella.Dianulites petropolltanus Dybowski.Dianulites petropolitana Dybowski, Die Chsctetiden der Ostbaltischen Silur-form., 1877, p. 24, pi. 1, figs. 4, 5.?Bassler, Bull. U. S. Nat. Mus., 77, 1911,pp. 232-237, pi. 2, figs. 4-6a; pi. 10, figs. 7-11; text figs. 129-132.Hexaporites Pander, Beitr. Geogn. russ. Reiches., 1830, p. ]06, pi. 1, fig. 5; pi.28, fig. 8. 406 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dlanulltes petropolitanus?Continued.Hexaporites fungiformis Leuchtenberg in Eichwald Geog. Russ., 1846, p. 370. ? Eichwald, Leth. Rossica, 1, 1860, p. 478.Dianulites petropolitanus var. hexaporites Dybowski, Die Chaetetiden der Ostbal-tischen Silurform., 1877, p. 30, pi. 1, figs. 6, 6a.Monotrypa (Chtetetes?) cumulata Ulrich, Geol. Minnesota, 3, pt. 1, 1893, p.307, pi. 27, figs. 26, 27.Middle Ordovician: Esthonia, Russia; Goodhue County, Minnesota (Prosser);Ottawa, Ontario,Plesiotypes.?Cat. Nos. 26906, 57339, 57340, U.S.N.M. (Holotype of M. mmulata).Dianulites petropolitanu.s var. hexaporites Dybowski. See Dianulites petropo-litanus.Dianulites quebecensis Miller. See Mesotrypa quebecensis.Dianulites rotunda Miller. See Mesotiypa rotunda.Dianulites selkirkensis Miller. See Mesotrypa selkirkensis.DIAPHOROSTOMA Fischer. Genotype: Platyostoma ventricosum Conrad . Platyostoma Conrad (not Meigen, 1903), Jour. Acad. Nat. Sci. Philadelphia, 7,1842, p. 275.?Hall, Pal. New York, 2, 1852, pp. 103, 286; ibid., 3, 1859, pp.293, 299.?Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 117.?Waagen,Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1, 1880, p. 103.?Lindstrom,Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, p. 61.?Zittel, Handb.Pal., 2, 1882, p. 217.?Koken, Neues Jahrb. Min., Geol., 6, 1889, pp. 349,468, 470.?Miller, N. A. Geol. Pal., 1889, p. 418.?Nettelroth, Kentucky,Foss. Shells, Geol. Surv. Kentucky, 1889, p. 183.?Koken, Die Leitfossilien,Leipzig, 1896, p. 128.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 274.Diaphorostoma Fischer, Man. Conch., 1885.?Grabau, Bull. New York StateMus., 45, 1, 1901, p. 211; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 211.?Grabauand Shimer, N. A. Index Fossils, 1, 1909, p. 679.?Dall, Zittel-EastmanTextb. Pal., 2d ed., 1913, p. 54.Diaphorostoma auriforme (Hall).Capulus auriforuus Hall, Pal. New York, 1, 1847, p. 31, pi. 6, figs. 9a, b; 12thRep. New York State Cab. Nat. Hist., 1859, p. 07.Stomatia auriformis Emmons, Amer. Geology, ], pt. 2, 1855, p. 157.Platyostoma auriforme Rajonond, Ann. Carnegie Mus., 4, 1908, p. 217.Chazyan or Trenton : Galway, New York.Diaphorostoma brownsportense (Foerste).Platyceras brownsportensis Foerste, Jour. Geol., 11, 1903, p. 709.Diaphorostoma brownsportensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909,p. 64, pi. 1, fig. 14.Niagaran (Brownsport): Brownsport Fm-nace, Cerro Gordo, and Bath Springs,Tennessee.Diaphorostoma campauulatum (Winchell and Marcy).Platyceras campanulatum Winchell and Marcy, Mem. Boston Soc. Nat. Hist.,1, 1865, p. 99, pi. 2, fig. 16.Niagaran (Racine): Chicago, HUnois.Diaphorostoma cliltonense Foerste.Diaphorostoma cliftonensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p.63, pi. 3, figs. 41A, B; Cincinnati Soc. Nat. Hist. Jour., 21, 1909, p. 30.Clinton: Clifton, Tennessee (Osgood); Martins, Lewis County, Kentucky (WestUnion). BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 407Diaphorostoma hemlsphericum (Hall).Euomphalus hemisphericus Hall, Nat. Hist. New York, Geol., 4, 1843, p. 109,figs. 1, 2; p. 110, tab. 16, figs. 1, 2.Straparollus hemisphericus D'Orbigny, Prodr. Pal., 1, 1849, p. 29 (gen. ref.)Platyostoma hemispherica Hall, Pal. New York, 2, 1852, p. 288, pi. 60, fig. 2a,b.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 692, figs.Clinton (Rochester): Rochester, Lockport, etc., New York.Diaphorostoma humile (Billings).Cyclonema humilis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 56.Gamachian (Ellis Bay) and Anticostian (Gun River-Chicotte) : The Jumpers, etc.,Anticosti.Diaphorostoma illinolsense Savage.Diaphorostoma illinoisensis Savage, Bull. Geol. Surv., IlUnois, 23, 1913, p. 118,pl.7, fig. 19.Upper Medinan (Channahon): Will County, Illinois.Diaphorostoma uiagarense (Hall).Platyostoma niagarensis Hall, Pal. New York, 2, 1852, p. 287, pi. 60, figs, la-v.?Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 75, pi. 5, fig. 15. ? Hall, Trans. Albany Inst., 4, 1863, p. 227 (loc. occ); 20th Rep. New YorkState Cab. Hist., 1868, p. 342, 393 (loc. occ.) (Extras, 1865), rev. ed., 1870,pp. 390, 432; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877, pi.28, figs. 1-12; pi. 29, figs. 1-15; pi. 31, fig. 3; Mus. ed., 1879, p. 175, pi. 28,figs. 1-12; pi. 29, figs. 1-15.?White, 2d Ann. Rep. Indiana Dep. Stat. Geol.,1880, p. 497, pi. 3, figs. 7, 8.?Zittel, Handb. Pal., 2, 1882, p. 217, fig. 297.?Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1881, p. 318, pi. 29,figs. 1-12; 13?, pi. 30, figs. 1-15.?Foerste, Bull. Sci. Lab. Denison Univ., 1,1885, p. 97, pi. 13, figs. 3a, b; fig. 22.?Nettelroth, Kentucky Foss. Shells,Geol. Surv. Kentucky, 1889, p. 185, pi. 33, fig. 30.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 693, figs.?Miller, N. A. Geol. Pal., 1889,p. 418, fig. 697.?Rowley in Greene, Cont. Indiana Pal., pt. 8, 1901, p. 67,pi. 23, fig. 12.?Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 483, pi.57, figs. 3, 4.Platyostoma (Diaphorostoma) niagarense Grabau, Amer. Nat., 36, 1902, p. 939.Diaphorostoma niagarense Grabau, Bull. Buffalo Soc. Nat. Sci., 8, 1901, p. 212,fig. 141; Bull. New York State Mus., 45, 1901, p. 212, fig. 141.?Clarke andRuedemann, Mem. New York State Mus., 5, 1903, p. 59, pi. 10, figs. 14-16.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 679, fig. 951.?Savage,Bull. Geol. Surv. Illinois, 23, 1913, p. 102, pi. 6, fig. 1.Platyceras (Platystoma) niagarensis Foerste, Geol. Surv. Ohio, 7, 1893, p. 553,pi. 25, figa. 3, 22.Platyceras (Diaphorostoma) cornutum Kindle and Breger, 28th Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1904, p. 453, pi. 13, figs. 9-16.Rtrophostylus niagarensis Keyes, Amer. Nat., 24, 1890, pi. 33, fig. 2; Proc. IowaAcad. Sci., l,pt. 2, 1892, p. 25.Silurian: Lockport, Rochester, etc.. New York. As at present identified awidely distributed species in North America ranging from the Brassfield tothe Keyser formation of the Helderbergian.Plesiotype.?Cat. No. 53232, U.S.N.M. (Nettelroth).Observation.?D. niagarensis Hall has been identified with Platyceras cornutumHisinger, but until the two have been more closely compared it is preferredto leave them distinct. 408 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.DIaphorostoma niagareuse clintoiiense (Foerste).Platyceras Niagareuse var. Clintonense Foerste, Geol. Siirv. Ohio, Pal., 7, 1893,p. 554, pi. 37a, fig. 8.Clinton: Mifflintown, Juniata County, Pennsylvania.Diaphorostoma nlagarense immaturum Savage.Diaphorostoma niagarensis var. immatura Savage, Bull. Geol. Surv. IHinois, 23,1913, p. 55, pi. 2, fig. 3.Upper Medinan (Girardeau) : Near Thebes, Illinois.Diaphorostoma niagarense multllineatum (Calvin).Platystoma niagarense var. multilineatum Calvin, Bull. Lab. Nat. Hist. StateUniv. Iowa, 1, 1890, p. 177, pi. 2, figs. 4a-c.Niagaran (Waldron): Waldron, Indiana.Diaphorostoma perforatum Whiteaves.Diaphorostoma perforatum Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14,App. F, 1904, p. 52; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 261, pi.29, figs. 7, 7a.Niagaran: Ekwan River, Canada.Diaphorostoma plebium (Hall).Platyostoma plebia Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1875, pi. 28, figs. 14, 15; rev. ed., 1879, p. 175, pi. 28, figs. 14, 15; 11th Ann.Rep. Dep. Geol. Nat. Hist., 1882, p. 319, pi. 29, figs. 14, 15.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1889, p. 695, figs.Niagaran (Waldron): Waldron, Indiana.Diaphorostoma trigonostoma (Meek).Platyostoma? trigonostoma Meek, Proc. Acad. Nat. Sci. Philadelphia, 1, 1871,169.?Miller, N. A. Geol. Pal., 1889, p. 418, fig. 698.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 695, figs.Platyostoma Niagarensis var. trigonostoma Meek, Geol. Surv. Ohio, Pal., 1, 1873,p. 185, pi. 16, figs. 3a-c, and text fig.Xenophora trigonostoma Whitfield, Geol. Wisconsin, 4, 1882, p. 358 (gen. ref.).Niagaran: Yellow Springs, Ohio.DiASTOPORA D'Orbigny (part). See Berenicea Lamoiiroux.DiastoporelIjA Vine. See Berenicea Lamouroux.DIASTOPORINA Ulrich. Genotype: D. flabellata Ulrich.Diastoporina Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 177.?Miller,N. A. Geol. Pal., Ist App., 1892, p. 684.?Ulrich, Geol. Minnesota, 3, 1893,p. 121.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 17.?Simpson,14th Ann. Rep. State Geol. New York for 1894, 1897, p. 595.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, p. 20.?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 119.Diastoporina flabellata Ulrich.Diastoporina flabellata Ulrich, Jour. Cmcinnati Soc. Nat. Hist., 12, 1890, p. 178,fig. 5; Geol. Minnesota, 3, 1893, p. 122, pi. 2, figs. 2, 3.?Simpson, 14th Ann.Rep. State Geol. New York for 1894, 1897, figs. 199, 200 (p. 595).?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 120, fig. 178f.Trenton (Prosser): Cannon Falls and St. Paul, Minnesota.Hohlype.?Cni. No. 43266. TT.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 409DicELLocEPHALUs AFFiNis Matthew. See Platycolpiia afiiiiis.DiCELLOCEPHALUs Barabuensis Whitfield. See Platycolpus barabuensis.DicELLOCEPHALUs Belli Matthew. See Anomocarella belli.DicELLOCEPHALUs(?) coRAX Matthew. See Dikelocephalus(?) corax.DicELLOCEPHALus CRisTATUs Matthew. See Conokephalina? cristatuH.DiCELLOCEPHALUs FiNALis Walcott. See Apatokephalus finalis.DiCELLOCEPHALUs HARTii Lesley. See Dikelocephalus hartii.DiCELLOCEPHALUs iNEXPECTANS Walcott. See Conokephalina inexpectans.DiCELLOCEPHALUs MAGNiFicus Matthew. See Hungaia magnifua.DiCELLOCEPHALUs MEGALOPS Matthew. See Conokephalina megalopa.DiCELLOCEPHALUs OwENi Matthew. See Anomocarella? oweni.DiCELLOCEPHALUs PAUPER Matthew. See Ptychaspis? pauper.DiCELLOCEPHALUs PLANiFRONS Matthcw. See Anomocarella? planifrons.DiCELLOCEPHALUs SE80STRIS Matthew. See Ptychaspis sesostris.DiCELLOCEPHALUs TRiBULis Walcott. See Dikelocephalus tribulis.DicELLOGRAPsus Hopkinsou. See Dicellograptus Hopkinson.DICELLOGRAPTUS Hopkinson. Genotype: Didymograptus elegans Carruthers.Dicellograpsus Hopkinson, Geol. Mag., 8, 1871, p. 20.Dicellograptus Zittel, Handb. Pal., 1, 1879, p. 300.?Tullberg, Sveriges Geol.Unders., Ser. C, No. 55, 1883, pp. 12, 14.?Herrmau, Geol. Mag., dec. 3, 2,1885, p. 451.?Koken, Die Leitfoseilien, Leipzig, 1896, p. 329.?Wiman,Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, 1896, p. 264.?Walther, Zeits. d. d.geol. Gesell., 49, 1897, p. 256.?Roemer and Freeh, Leth. geog., Leth Pal.,1, 3 Lief, 1897, p. 617.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p.32.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 291-293;Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 130.Dicellograptus complanatus Lapworth.Dicellograptus complanatus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880,p. 160, pi. 5, figs. 17a-e.?Tullberg, Sver. Geol. Undera., Afh. och Uppa.,Ser. C, 50, 1882, p. 18.?Roemer and Freeh, Leth. Pal., 1, 1897, p. 618,fig. 183.?Elles and Wood, Mon. British Grapt., 1904, p. 139, pi. 20. figs.lad.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 32, figs. 53a, b.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 294, 295.Ordovician: Scotland and Ireland (Upper Hartfell); Scania (Trinucleua beds);Arbuckle Mountains, Oklahoma (Sylvan).Pledotype.?C-dt. No. 54267, U.S.N.M.Dicellograptus dlvarlcatus (Hall).Graptolithus divaricatus Hall, Pal. New York, 3, 1859, p. 514, figs. l-A; NewYork State Cab. Nat. Hist., 13th Ann. Rep., 1860, p. 58, figs. 1-4; Geol. Surv.Canada, Can. Org. Rem., dec. 2, 1865, p. 14, fig. 19.?Lealey, Geol. Surv.Pennsylvania, Rep. P4, 1889, p. 264, figa.Graptolithus (Dicrauograptus) divaricatua Hall, New York State Cab. Nat. Hist.,20th Ann. Rep., 1868. p. 180, fig. 20; rev. ed., 1870. p 212, fig. 20. 410 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dlcellograptus divaricatus?Continued.Didymograptus divaricatus Nicholson, Ann. Mag. Nat. Hist., 5, 1868, p. 351, pi.7, fig. 4; Men. British Grapt., 1872, p. 55, text fig. 30.Dicellograptus divaricatus Hopkinson, Geol. Mag., 8, 1871, p. 25, pi. 1, fig. 4. ? Hopkinsonand Lapworth, Quart. Jour. Geol. Soc, 31, 1875, p. 654, pi. 34, figs.3a, b.?Lapworth, Roy. Soc. Can. Proc. and Trans., 5, sec. 4, 1886, p. 184.Walcott, Geol. Soc. Am. Bull., 1, 1890, p. 339.?T. S. Hall, Rec. Geol. Surv.N. S. Wales, 7, pt. 2, 1902, p. 3, pi. 12, fig. 3; pi. 13, fig. 3.?Elles and Wood,Mon. British Grapt., pt. 4, 1904, p. 143, pi. 20, figs. 5a, 5b.?Grabau and Shlmer,N. A. Index Fossils, 1, 1906, p. 32, fig. 53c.?Ruedemann, Mem. New YorkState Mus., 11, pt. 2, 1908, pp. 296-299, pi. 18, figs. 4, 212-214.Dicellograptus moffatensis var. divaricatus Lapworth, Belfast Nat. Field Club,Rep. and Proc, 1, pt. 4, 1877; app., p. 141, pi. 7, fig. 10.?Ami, Can. Geol.Surv., Ann. Rep. 3, pt. 2, 1889, p. 60K, 116K.Dicranograptus divaricatus Walcott, Alb. Inst. Trans., 10, 1883, (adv. sheets,1879, p. 34).Dicranograptus (Dicellograptus) divaricatus Roemer and Freeh, Leth. Pal., 1,3 Lief, p. 618.Chazyan (Normanskill): Kenwood, Glenmont, Stockport, etc., New York; Ne-vada; Canada; Arkansas.Middle Ordovician: Scotland and Wales (Glenkiln); New South Wales; Australia.Dicellograptus divaricatus bicurvatus Ruedemann.Dicellograptus elegans Gurley, Geol. Surv. Arkansas, Ann. Rep. for 1890, 3, 1892,p. 414; Jour. Geol., 4, 1896, pp. 71, 95.Dicellograptus divaricatus var. bicurvatus Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, p. 300, pi. 18, fig. 8, text fig. 216.Chazyan (Normanskill): Kenwood and Glenwood, New York; Ouachita Moun-tains, Oklahoma (Talihina); Arkansas (Stringtown).Obser\^ation.?The species listed by Gurley as D. elegans Cari'uthers in allprobability refers to this variety. See Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, p. 312.Dicellograptus divaricatus Lapworth (1876). See Dicellograptus divaricatusrigidus.Dicellograptus divaricatus rectus Ruedemann.Dicellograptus divaricatus var. rectus Ruedemann, Bull. New York State Mus.,11, pt. 2, 1908, p. 299, pi. 18, fig. 7, text fig. 215.Chazyan (Normanskill): Kenwood and Speigletown, New York.Dicellograptus divaricatus rigidus Lapworth.Dicellograptus divaricatus Lapworth, Cat. West. Scott. Foss., 1876, pi. 4, fig. 86.Dicellograptus moffatensis var. divaricatus Lapworth, Belfast Nat. Field Club,Rep. and Proc, 1, pt. 4, app. 1877, p. 141, pi. 7, fig. 10.Dicellograptus rigidus Gurley, Geol. Surv. Arkansas, 3d Ann. Rep., 1890, p. 416;Jour. Geol., 4, 1896, p. 297.Dicellograptus divaricatus var. rigidus Lapworth, Ann. Mag. Nat. Hist., 5th ser.,5, 1880, p. 163, pi. 5, fig. 20.?Elles and Wood, Mon. British Grapt., 1904,p. 144, fig. 88a; pi. 20, figs. 6a-e.?Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, p. 301.Ordovician: Great Britain (Glenkiln); Arkansas and Oklahoma (Normanskill-Stringtown).Plmotype.?C2it. No. 54259, U.S.N.M. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES, 411Dlcellograptiis divaricatus salopleusis EUes and Wood.Dicellograptus divaricatus var. ealopiensis Elles and Wood, Mon. British Grapt.,pt. 4, 1904, p. 145, pi. 20, figs. 7a-e.?Ruedemann, Bull. New York StateMus., 11, pt. 2, 1908, p. 300, pi. 18, fig. 5, text figs. 217-219.Ordovician: Shropshire, England, and South Scotland (Glenkiln); Stockport andKenwood, New York (Normanskill).Dicellograptus eleoans Gurley. See Dicellograptus divaricatus l)icurvatus.Dicellograptus gurleyl Lapworth.Dicellograptus gurleyi (Lapworth MSS) Gurley, Jour. Geol., 4, 1896, p. 70. ? Ruedemann, Bull. New York State Mus., 11, pt. 2, 1908, pp. 303-306, pi. 19,figs. 7-9, text figs. 223-228.Chazyan (Normanskill): Stockport, Glenmont, and Mount Moreno, New York;Arkansas (Stringtown).Plesiotype.?Cat. No. 54265, U.S.N.M.Dicellograptu.s intortus Lapworth.Dicellograptus intortus Lapworth, Ann. and Mag. Nat. Hist., 5th ser., 5, 1880, p.161, pi. 5, fig. 19a.?Clark, Geol. Mag., 4th ser., 9, 1902, p. 498.?Elles andWood, Mon. British Grapt., pt. 4, 1904, p. 146, figs. 90a, b, pi. 20, figs, a-f.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 302, 303, figs.221, 222; pi. 18, figs. 9-10.Dicellograpsus intortus Gurley, Jour. Geol., 4, 1896, p. 95.Dicellograptus intortus polythecatus Gurley, Jour. Geol., 4, 1896, p. 70.Ordovician: Great Britain (Glenkiln); Stockport and Speigletown, New York;Arkansas (Normanskill).Dicellograptus intortus polythecatus Gurley. See Dicellogi'aptus intortus.Dicellograptus mensurans Ruedemann.Dicellograptus mensurans Ruedemann, Mem. New York State Mus., 11, 1908, pt.2, pp. 295, 296, pi. 18, fig. 2, text figs. 210, 211.Chazyan: Kenwood,' New York (Normanskill); Alabama (Athens).Dicellograptus moffatensis alabameusis Ruedemann.Dicellograptus moffatensis var. alabamensis Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, pp. 310-312, pi. 20, figs. 1, 2, text figs. 234-236.Chazyan (Athens): Near Pratt's Ferry, Bil)l) County, Alabama.Dicellograptus moffatensis var. divaricatus Ami. See Dicellograptus divari-catus.Dicellograptus moffatensis var. divaricatus Lapworth. See Dicellograptusdivaricatus rigidus.Dicellograptus rigidus Gurley. See Dicellograj^tus divaricatus rigidus.Dicellograptus sextans (Hall).r;raptolithu8 sextans Hall, Pal. New York, 1, 1847, p. 273, pi. 74, fig. 3.?Salter,Quar. Jour. Geol. Soc, 5, 1849, p. 17, pi. 1, fig. 10.?Chapman, Canadian Jour.,n. B., 1, 1856, p. 389, fig. 2.??arruthers, Siluria, 4th ed., 1867, p. 61, fig. 8.?Hall, 20th Rep. New York State Cab. Hist., 1868, pp. 180, 227; rev. ed., 1870,pp. 212, 224.?Nicholson, Quar. Jour. Geol. Soc, 24, 1868, p. 134.Diplograptus? sextans Mc'Coy, British Pal. Foss., 1855, p. 9.Didymograptus sextans Nicholson, Ann. Mag. Nat. Hist., 4th eer., 5, 1870, p, 354,pi. 9, fig. 9. 412 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Dicellograptus sextans?Continued.Dicellograptus sextans Lapworth, Belfast Nat. Field Club, Rep. and Proc, 1, pt.4, 1877, pi. 7, fig. 4.?Linnarsson, Sver. Geol. Unders., ser. C, no. 31, 1879,p. 18.?Lapworth, Ann. and Mag. Nat. Hist., 5th eer., 6, 1880, p. 19; Trans,Roy. Soc. Canada, 5, see. 4, 1886, p. 178.?Ami, Canadian Geol. Surv. Rep.,2d eer., 3, pt. 2, 1889, p. 117.?Walcott, Geol. Soc. Amer. Bull., 1, 1890,p. 339.?Gurley, Jour. Geol., 4, 1896, p. 297.?T. S. Hall, Roy. Soc. VictoriaProc, 9, 1896, p. 184; Geol. Mag., n. s., dec. 4, 6, 1899, p. 445.?Ruedemann,Bull. New York State Mus., 42, 1901, p. 539.?Clark, Geol. Mag., 4th ser.,9, 1902, p. 498.?Ellas and Wood, Mon. British Grapt., pt. 4, 1904, p. 153, pi.21, figs, la-e.?Dale, Bull. U. S. Geol. Surv., 242, 1904, p. 33.?Ami, Geol.Surv. Canada, Sum. Rep., 1905, p. 12.?Grabau and Shimer, N. A. IndexFossils, 1, 1906, p. 33, fig. 53d, e.?Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, pp. 306-308, pi. 19, fig. 1, text figs. 229-230.Dicellograptus cf. sextans TuUberg, Sver. Geol. Unders., ser. C, No. 50, 1882, p. 20.DicranograptUB sextans Hopkinson, Geol. Mag., 7, 1870, p. 356, pi. 16, fig. 1. ? Lapworth, Cat. West. Scott. Foss., 1876, p. 6, pi. 3, fig. 78.?Walcott, Trans.Albany Inst., 10, 1883, p. 34 (adv. sheets, 1879).?Richardson, Terranee ofOrange County, Vermont, 1902, p. 63.Dicranograptus (Dicellograptus) sextans Roemer and Freeh, Leth. Pal., 1, 1897,p. 621.Dicranograptus formosus Hopkinson, Geol. Mag., 7, 1870, p. 356.Middle Ordovician: Glenmont, Mt. Moreno, etc., New York; Vermont; Arkansas(Normanskill); England; Wales; Scotland; Ireland; Sweden; and Australia.Dicellograptus sextans exilis Elles and Wood.Dicellograptus sextans var. exilis, Elles and Wood, Mon. British Grapt., pt. 4,1904, p. 153.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp.309, 310, fig. 231.Graptolithus sextans (pars.) Hall, Pal. New York, 1, 1847, pi. 74, fig. 3a.Middle Ordovician: Great Britain (Glenkiln); Glenmont and Mt. Moreno, NewYork (Normanskill).Dicellograptus sextans perexilis Ruedemann.Dicellograptus sextans var. perexilis Ruedemann, Mem. New York State Mus., 11,pt. 2, 1908, p. 310, pi. 19, fig. 2, text fig. 233.Chazyan (Normanskill): Mt. Moreno, near Hudson, New York.Dicellograptus sextans tortus Ruedemann.Dicellograptus sextans var. tortus Ruedemann, Mem. New York State Mus., 11,pt. 2, 1908, p. 309, fig. 232.Chazyan (Normanskill): Kenwood, New York.Dicellograptus smith! Ruedemann.Dicellograptus smithi Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,pp. 313-315, pi. 19, figs. 3-6, text figs. 237, 238.Chazyan (Athens) : Near Pratt's Ferry, Bibb County, Alabama.Dicellograptus tenuis Lapworth. See Didymograptus subtenuis.DICELLOMUS Hall. Genotype: Lingula polita Hall.Dicellomus Hall, 23d Ann. Rep. New York State Cab. Nat. Hist., 1873, p. 246.?Walcott, Mon. U. S. Geol. Sur\'., 1889, 32, pt. 2, p. 446; Proc. U. S. Nat. Mus.,28, 1905, pp. 312-313.?Grabau and Shimer, N. A. Index Fossils, 1907, 1, p.189._Walcott, Smiths. Misc. Coll., 63, 1908, pi. 11, pp. 142, 144; Mon. U. S.Geol. Surv., 51, 1912, p. 571. BIBLIO(!RAPHIC LIST OF GENERA AND SPECIES. 413DICELLOMUS?Coutinued.Schmidtia Zittel (part) (not Volborth), Handb. Pal., 1, 1880, p. 665.Obolella Hall and Clarke (part), 11th Ann. Rep. State Geol. New York, 1892, pp.240-241; 45th Ann. Rep. New York State Mtis., 1892, pp. 556-557; Pal. NewYork, 8, pt. 1, 1892, pp. 66-73.Dlcellomus nanus (Meek and Hayden).Obolella nana Meek and Hayden, Proc. Acad. Nat. Set. Philadelphia, l;:5, 1862p. 435; Amer. Jour. Sci., 2d ser., 33, 18G2, p. 73, figs, la, b, 2a, b.?BillingaGeol. Surv. Canada, Pal. Foss., 1, 1862, pp. 67, 68.?Meek and HaydenSmiths. Cont. Knowl., 172, Pal. Upper Missouri, pt. 1, 1865, p. 4, pi. 1, figs3a-3d.?WTiitfield, U. S. Geogr. and Geol. Surv. Rocky Mountains RegionRep. Geol. Res. Black Hills of Dakota, by Newton and Jenney, 1880, pp340-341, pi. 2, figs. 14-17.?Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 111.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 69, 70.Dicellomus nanus Walcott (part), Mon. U. S. Geol. Surv., 32, pt. 2, 1899, p. 447,pi. 60, figs. 3a-d (not fig. 3); Proc. U. S. Nat. Mus., 28, 1905, pp. 314-315;Mon. U. S. Geol. Surv., 51, 1912, p. 573, pi. 53, figs. 1, la-1, 2, 2a, 3, 3a-d.Lower Ordovician: Near Buffalo Fork Peak, Uinta County, Wyoming. AlsoUpper and ^Middle Cambrian of Montana, Miseotiri, etc.Plesiotypes.?Cat. No. 31903, 51908, U.S.N.M.DiCHOGRAPSus Salter. See Dichograptus Salter.DicHOGRAPSus ARANEA Salter. See Dichograptus octobrachiatus.DiCHOGRAPSus FLEXiLis Hall. See Clonograptus flexilis.DiCHOGRAPSUs LOGANi Nicholsou. See Loganograptus logani.DicHOGRAPsus MiLESi Hall. See Clonograptus milesi.DicHOGRAPSUs OCTOBRACHIATUS Nicholson. See Dichograptus odobrachiatus.DiCHOGRAPSus ocTONARius Hall. See Dichograptus octonarius.DiCHOGRAPSUS HAMULUS Gurley. See Temnograptus? ramulus.DicHOGRAPSUS REMOTUS Gurloy. See Clonograptus remotus.DiCHOGRAPSUS RiGiDus Hall. See Clonograptus rigidus.DICHOGRAPTUS Salter.Genotype: Dichograpsus aranea Salter=Graptolithu3 octobrachiatus Hall.Dichograpsus Salter, Quart. Jour. Geol. Soc. London, 19, 1863, p. 139.?Nicholson,ibid., 24, 1868, p. 9, 127.?Carnithers, Geol. Mag., 5, 1868, p. 73, 129.?Nichol-son, Mon. British Grapt., 1872, p. 106; Ann. Mag. Nat. Hist., 4th ser., 11,1873, p. 138.Dichograptus, Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 217; rev.ed., 1870, p. 251.?Zittel, Handb. Pal., 1, 1879, p. 299.?TuUberg, Sver. Geol.Unders., ser. C, No. 55, 1883, p. 12.?Hermann, Geol. Mag., dec. 3, 3, 1886,p. 21.?Barrois, Ann. Soc. Geol. du Nord, 21, Lille, p. 108.?Nicholson andMurie, Geol. Mag., dec. 4, 2, p. 532, fig.?Wiman, Bull. Geol. Inst. Univ.Upsala, 2, pt. 2, 1896, p. 265.?Kokeu, Die Lcitfossilien, Leipzig, 1896, p.328.?Roemer and Freeh, Leth. goog., Leth. Pal., 1897, p. 594.?Files, Quart.Jour. Geol. Soc. London, 54, 1898, p. 483.?Zittel-Eastman Textb. Pal., 1,1900, p. 118.?Files and Wood, Mon. British Grapt. Pal. Soc, 1902, p. 76.?Ruedemann, Mem. New York State Mue., 7, pt. 1, 1904, p. 634.?Grabau andShinier, N. A. Index Fossils, 1, 1906, p. 28.?Ruedemann, Zittel-EastmanTextb. Pal., 2d ed., 1913, p. 129. 414 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.DiCHOGRAPTUs ABNORMis Hall. See Clonograptus abnormis.DiCHOGRAPTus DivARicATus Whitfield. See Dicellograptus divaricatus.DiCHOGRAPTUS FLABELLiFORMis Brogger. See Dictyonema flabelliforme.DiCHOGRAPTUs FURCATus Whitfield. See Dicranograptus fiircatus.DiCHOGRAPTUS LOGANi Nicholson. See Ldganograptus logani.Dichograptus octobrachiatus (Hall).Graptolithus octobrachiatus Hall, Geol. Surv. Canada, Rep. for 1857, 1858, p. 122;Geol. Surv. Canada, ('an. Org. Rem., dec. 2, 1865, p. 96, pi. 7, figs. 1-7;pi. 8, figs. 1-4.?Billings, Geol. Canada^ Geol. Surv. Canada, 1863, p. 226,fig. 232.Dichograpsue aranea Salter, Quart. Jour. Geol. Soc, 19, 1863, p. 137, figs. 9, 10.Graptolithus (Loganograptus) octobrachiatus Hall, 20th Rep. New York StateCab. Nat. Hist., 1868, p. 174, fig. 5; pi. 3, figs. 23-27; rev. ed., 1870, p. 207,fig. 5, pi. 3, fig. 23-27.Graptolithes (Didymograptus) octobrachiatus McCoy, Geol. Surv. Victoria,Prod. Pal. Victoria, dec. 1, 1874, p. 17, pi. 2, fig. 4.Dichograpsus octobrachiatus Nicholson, Quart. Jour. Geol. Soc, 24, 1868, p. 129,pi. 5, figs. 1, 2; Ann. Mag. Nat. Hist., 4th eer., 1, 1868, p. 56, pi. 3, fig. 6.DichograptusoctobrachiatusNicholson, Mon. British Grapt., 1872, p. 107, fig. 50. ? Brogger, Die silurischen Etagen, 2, 3, 1882, p. 38.?Herrmann, Nyt. Mag.Naturv., 29, 1885, p. 124; Geol. Mag., dec. 3, 3, 1886, p. 22, fig. 7.?Le-crenier, Ann. Soc. Geol. Belg., 14, 1887, p. 182.?Ami, Geol. Surv. CanadaRep., 2d eer., 3, pt. 2, 1889, p. 117k.?Tornquist, Lunds Univ. Arsskrift., 26,1891, p. 12, pi. 1, fig. 1.?Nicholson and Man', Geol. Mag., dec. 4, 2, 1895,p. 534, fig.?Gurley, Jour. Geol., 4, 1896, p. 294.?Roemer and Freeh, Leth.geog., Leth. Pal., 1, 1897, p. 595.?Elles, Quart. Jour. Geol. Soc, 54, 1898,p. 483.?Ruedemann, New York State Pal., Ann. Rep. 1902, pp. 554, 556.?Elles and Wood, Mon. British Grapt., pt. 1, 1902, p. 77, pi. 9; pi. 10, figs,la-e.?Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 634-637,pi. 8, figs. 1-7; pi. 9, figs. 1-2.?Grabau and Shimer, N. A. Index Fossils,1, 1906, p. 28, fig. 41.Canadian: Point Levis, Quebec (Levis, Didymograptus zone); Deepkill, Rens-selaer County, New York (Deepkill, Tetragraptus, Didymograptus, andDiplograptus zones); England (Skiddaw); Wales (Arenig); Scandinavia;Belgium; Australia.Dichograptus octonarius (Hall).Graptolithus octonarius Hall, Canadian Nat. Geol., 3, 1858, p. 148; Geol. Surv.Canada, Rep. Progr. for 1857, 1858, p. 124; Geol. Surv. Canada, dec. 2,1865, p. 95, pi. 10, figs. 1, 2.Graptolithus (Monoprion) octonarius Hall, 20th Rep. New York State Cab. Hist.,1868, p. 226, pi. 3, fig. 22; rev. ed., 1870, p. 260, pi. 3, fig. 22; p. 223.Dichograpsus octonarius Gurley, Jour. Geol., 4, 1896, p. 95 (gen. ref.)Dichograptus octonarius Hall (T. S.), Geol. Mag., dec. 4, 6, 1899, p. 449, pi. 22,fig. 7.Canadian: Point Levis, Quebec (Levis); Australia.Dichograptus thureaui Freeh. See Goniograptus thureaid.Dichotrypa grandis Ulrich.Dichotrypa grandis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 498, pi. 43, figs. 1-le.Niagara(?): Will County, near Wilmington, Illinois (?).Observation.?This form is probably from the St. Louis group of Illinois andmay be the same as Dichotrypa elegans Ulrich. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 415DICRANELLA Ulrich. Genotype: D. bicomis Ulrich.Dicranella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 664; Ziltel-Eastman Textb.Pal., 1, 1900, p. 644.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.349.?Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 738.Dicranella blcornis Ulrich.Dicranella bicornis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 665, pi. 44, fig. 26;pi. 46, figs. 39, 40.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 349,fig. 1657, j, k.?Bassler, Zittel-Eastman Textb. Pal., J913, p. 738, fig. 1425d.Beyrichia bicornis Miller, N. A. Geol. Pal., 2d App., 1897, p. 787 (gen. ref.).Black River (Decorah): Minneapolis and St. Paul, Minnesota.Cotypes.?Cat. No. 41366, U.S.N.M.Dicranella? byrnesi (Miller).Leperditia Byrnesi Miller, Cincinnati Quart. Jour. Sci., I, 1874, p. 123, fig. 10;N. A. Geol. Pal., 1889, p. 552, fig. 1020.^chmina Byrnesi Jones, Quart. Jour. Geol. Soc. London, 46, 1890, ]>. 12, pi. 3, figs.9-11.Dicranella? bjTuesi Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 664.Eden (Fulton): Cincinnati, Ohio, and vicinity.Dicranella marglnata Ulrich.Dicranella marginata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 666, pi. 44, figs.27,28.Beyrichia mai-ginata Miller, N. A. Geol. Pal., 2d App., 1897, p. 786 (gen. ref.).Black River (Decorah): Fountain, Minnesota.Eolotype.?Cat. No. 41368, U.S.N.M.Dicranella? simplex Ulrich.Dicranella? simplex Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 666, pi. 44, figs. 24,25; pi. 46, fig. 42.Beyrichia simplex Miller, N. A. Geol. Pal., 2d App., 1897, p. 787 (gen. ref.).Black River (Decorah): Fountain, Minnesota.Eolotype.?Cat. No. 41367, U.S.N.M.Dicranella spinosa Ulrich.Dicranella spinosa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 665, pi. 44, fig. 23;pi. 46, fig. 41.Beyrichia spinosa Miller, N. A. Geol. Pal., 2d App., 1897, j). 787 (gen. ref.).Black River (Decorah): Minneapolis, Minnesota.Eolotype.?Gat. No. 41369, U.S.N.M.DicRANiscus Meek. See Triplecia Hall.DICRANOGRAPTUS Hall. Genotype: Graptolithue ramosus Hall.DicranograptusHall, Can. Org. Remains, dec. 2, 1865, p. 112; 20th Rep. New YorkState Cab. Hist., 1868, p. 218; rev. ed., 1870, p. 252.?Carruthers, Geol. Mag.,5, 1868, p. 73, 132.?Hopkinson, Geol. Mag., 7, 1870, p. 353.?Richter, Zeits.d. d. geol. Gesell, 27, 1875, p. 266.?Zittel, Handb. Pal., 1, 1879, p. 300.?Tullberg, Sveriges Geol. Unders., ser. C, No. 55, 1883, pp. 12, 14.?Spencer,Trans. Acad. Sci. St. Louis, 4, 1884, p. 562.?Miller, N. A. Geol. Pal., 1889,p. 185.?James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892, p. 160.?Gurley, Jour. Geol., 4, 1896, p. 71.?Wiman, Bull. Geol. Inst. Univ. Upsala,2, pt. 2, 1896, p. 264.?Koken, Die Leitfossilien, Leipzig, 1896, p. 329.?Roemer and Freeh, Leth. geog., Leth. Pal., 1897, p. 615.; Zittel-Eastman 416 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.DICRANOGRAPTUS?Continued.Textb. Pal., 1, 1900, p. 119.?Ruedemann, Mem. New York Slate Mus., 11,pt. 2, 1908, pp. 315-317; Zittel-Eastman Pal., 2d ed., 1913, p. 130.?Grabauand Shimer, N. A. Index Fossils, 1, 1906, p. 32.Dicranograpsus Nicholson, Ann. Mag. Nat. Hist., 4th ser., 6, 1870, p. 371; Mon.British Grapt., 1872, p. 118.DicRANOGRAPTus ARKANSASENSis Gurley. See Dicranograptus ramoeus arkan-sasensis.DicRANOGRAPTUs ARUNDiNACEus Hall. See MastigograptuB arundinaceus.Dlcranograptus contortus Ruedemann.Dicranograptus contortus Ruedemann, Mem. New York State Mus., 11, pt. 2,1908, pp. 337-338, pi. 23, fig. 9; figs. 275-278.Chazyan (Normanskill) : Kenwood and Troy, New York.Dicranograptus dissimilaris Emmons. See Diplograptus foliaceus.Dicranograptus divaricatus Walcott. See Dicellograptus divaricatus.Dicranograptus formosus Hopkinson. See Dicellograptus sextans.Dicranograptus furcatus (Hall).Graptolithus furcatus Hall, Pal. New York, 1, 1847, p. 237, pi. 74, figs. 4a-h.?Chapman, Can. Jour., 1, 1856, p. 390, fig. 10.Dicranograptus furcatus Hall, Geol. Surv. Canada Can. Org. Rem., dec. 2, 1865,p. 15.?Lapworth, Ann. Mag. Nat. Hist., 5, 1880, p. 283.?"Walcott, Alb.Inst. Trans., 10, 1883 (Adv. sheet, 1879), p 34.?Wliitfield, Am. Jour. Sci.,3d ser., 26, 1883, p. 380.?Walcott, Geol. Soc. Bull., 1, 1890, p. 339.?Gurley,Jour. Geol., 4, 1896, p. 297.?Ruedemann, Mem. New York State Mus., 11,pt. 2, 1908, pp. 334-336, pi. 23, fig. 7; text fig. 272.Dicranograptus nicholsoni Freeh, Leth. Pal., 1, 1897, p. 617, fig. 181.Chazyan (Normanskill): Glenmont, etc., New York; Silver Peak Quadrangle,Nevada.Plesiotypes.?Csit. No. 54251, U.S.N.M.Dicranograptus furcatus exills Ruedemann,Dicranograptus furcatus var. exilis Ruedemann, Mem. New York State Mus., 11,pt. 2, 1908, p. 337, pi. 23, fig. 8; figs. 273-274.Chazyan (Normanskill): Kenwood, New York.Dicranograptus in^equalis (Emmons). See Cladograptus insequalis.Dicranograptus nicholsoni Hopkinson.Dicranograptus nicholsoni Hopkinson, Geol. Mag., 7, 1870, p. 357, pi. 16, fig. 3. ? Lapworth, Cat. West. Scott. Foss., 1876, p. 6, pi. 3, fig. 79; Belfast Nat. FieldClub, Rep. and Proc, App., 1, pt. 4, 1877, p. 141, pi. 7, fig. 2.?Tullberg,Sver. Geol. Unders., ser. C, No. 50, 1882, p. 20.?Gurley, Jour. Geol., 4, 1896,p. 297.?Ellesand Wood, Mon. British Grapt., pt. 4, 1904, p. 171, pi. 25, figs.la-h.?T. S. Hall, Proc. Roy. Soc. Victoria, 18, 1905, p. 24, pi. 6, fig. 7;Rec. Geol. Surv. Victoria, 1, pt. 4, 1906, p. 274.?Ruedemann, Mem. NewYork State Mus., 11, pt. 2, 1908, pp. 317-320, pi. 20, figs. 3, 5; pi. 21, fig. l;figs.241, 242.Middle Ordovician: Great Britain (Glenkiln and Hartfell); Scania; Victoria;Saratoga County, etc.. New York (Trenton-Utica) ; Ohio (Fulton).Plesiotypes.?C&t. Nos. 54247, 54269, U.S.N.M. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 417DicRANOGRAPTUs NicHOLSoNi Frech. See Dicranograptiis fiircatus.DicRANOGRAPTUs NICHOLSONI ARKANSASENSis Gurley. See Dicrauograptus ramosusarkansasensis.Dlcranograptus iiicholsonl diapason Gurley.Picranograptus nicholsoni var. diapason Gurley, Jour. Geol.. 4, 1896, p. 73. ? Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 322-324, pi. 21,figs. 3-5, figs. 249-254.Chazyan (Normanskill): Glenmont, Stockport, etc., New York; Arkansas.Cotype.?Cat. No. 54286, U.S.N.M.Dicranograptus nicholsoni parvangulus Gurley.Dicranograptus nicholsoni var. parvangulus Gurley, Ann. Rep. Geol. Surv.Arkansas, 3, 1892, p. 417; Jour. Geol., 4, 1896, p. 73.?Ruedemann, Bull.New York State Mus.. 11, pt. 2, 1908, pp. 320-322, pi. 21, fig. 2, figs. 243-248.Chazyan (Normanskill): Mount Moreno, Glenmont, Stockport, etc.. New York;Arkansas.Cotypes.?Qsii. Nos. 54257, 54258, U.S.N.M.Dicranograptus nicholsoni parvulus Ruedemann.Dicranograptus nicholsoni var. i)arvulu8 Ruedemann, Bull. New York State Mus.,162, 1912, p. 78. figs. 17, 18.Trenton (Canajoharie): Near Pattersonville, New York.Dicranograptus nicholsoni whitianus (Miller).Graptolithus (Climacograptus) ramulus White (preoccupied), Wheeler's Expl.Surv. West 100th Merid., 4, pt. 1, 1877, p. 62, pi. 4, figs. 3a-c.Graptolithus whitianus Miller, Amer. Pal. Foss., 2d ed., 1883, p. 269.Dicranograptus nicholsoni var. whitianus Gurley, Jour. Geol., 4, 1896, p. 72,300.?Ruedemann, Mem. New Y^ork State Mus., 11, pt. 2, 1908, p. 324.Chazyan (Normanskill zone): Five miles north of Summit, Nevada.Holotype.?C&t. No. 8555, U.S.N.M.DicKANOGRAPTUs RAMOSUS Hopkinson. See Dicranograptus spinifer.Dicranograptus ramosus (Hall).Graptolithus ramosus Hall, Pal. New York, 1, 1847, p. 270, pi. 73, fig. 3a-h.?Salter, Geol. Soc.Quar. Jour., 5, 1848, p. 10, pi. 1, fig. 7; Geol. Stu-v. Canada,dec, 1865, p. 15, fig. 20.?Chapman, Canadian Jour., 8, 1863, p. 205, text fig.203.?Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 200, fig. 194.Graptolithus (Dicranograptiis) ramosus Hall, New York State Cab. Nat. Hist.,20th Ann. Rep., 1868, p. 181, fig. 21; pi. 2, figs. 18-21, p. 227; rev. ed., 1870,p. 212.Cladograpsus ramosus Geinitz, Die Graptolithen, 1852, p. 29.?McCoy, Geol. Surv.Victoria, dec. 2, 1875, pi. 20, fig. 2.Cladograpsus sp. undet. Emmons, Amer. Geology, 1856, pi. 1, fig. 12.Dicranograptus ramosus Salter, Mem. Geol. Surv. Great Britain, 3, 1866, p. 330,pi. 13A, fig. 1; Siluria, 4lh ed., 1866, p. 541, fig. 4.?Nicholson, Mon. BritishGrapt.,1872, p. 119, fig. 60.?Lapworth, Cat. West. Scot. Foss., 1876, p. 6,pi. 4, fig. 80.?Whitfield, U. S. Geog. Surv. West 100th Merid., ^^^leele^'^Rep., 1877.?Walcott, Alb. Inst. Trans., 10, 1883 (Advance sheet, 1879, p.34).?Lapworth, Roy. Soc. Canada Trans., 5, sec. 4, 1886, p. 184.?Ami,Canadian Geol. Surv. Rep., 2dser., 3, pt. 2, 1889, p. 117K.?Miller, N. A. Geol.Pal., 1889, p. 185, fig. 167.?Walcott, Bull. Geol. Soc, 1, 1890, 339.-Gurley,Geol. Surv. Arkansas Ann. Rep., 3, 1892, p. 411.?James, Jour. Cincinnati84243"?Bull. 92?15 27 418 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dicranograptus ramosus?Continued.Soc. Nat. Hist., 14, 1892, p. 160.?Giirley, Jour. Geol., 4, 1896, p. 297.?T. S.Hall, Proc. Roy. Soc. Victoria, 9, 1896, pi. 1, p. 184.?Roemer and Freeh,Leth. geog., Leth. Pal., 1, 1897, 616, fig. 180.?T. S. Hall, Geol. Mag., n. e., dec.4, 6, 1899, 445.?Ruedemann, Bull. New York State Mus., 42, 1901, p.496ff.?T. S. Hall, Geol. Surv. Victoria Rec, 1, pt. 1, 1902, p. 33.?Clark,Geol. Mag. (4), 9, 1902, p. 498.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903,p. 55, 213, pi. 16, figs. 10, 11.?Elles and Wood, Mon. British Grapt., 1904,p. 175, pi. 24, figs. 6a, b.?Dale, Bull. U. S. Geol. Surv., 242, 1904, p. 33.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 32, fig. 52.?Ruedemann,Mem. New York State Mus., 11, pt. 2, pp. 325-328, pi. 23, fig. 1, text figs. 255,256, 411.Middle Ordovician: MountMoreno, Kenwood, Stockport, etc.. New York; Canada;New Jersey; Arkansas; Oklahoma (Normanskill); Victoria and Auetralia.Hartfell and Glenkiln shales of Great Britain.Dicranograptus ramosu.s arkausasensis (Gurley).Dicranograptus arkausasensis Giurley, Geol. Surv. Arkansas, Ann. Rep., 3, 1892,p, 416, pi. 9, figs. 1, 2.Dicranograptus nicholsoni arkansasensis Gurley, Jour. Geol., 4, 1896, p. 72.Dicranograptus ramosus var. arkansasensis Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, p. 329, figs. 257, 258.Middle Ordovician: Arkansas (Normanskill); Great Britain (Glenkiln).Cotype?Cat. No. 54261, U.S.N.M.Dicranograptus ramosus var. spinifer Elles and Wood. See Dicranograptusspinifer.Dicranograptus ramulus Herrman. See Dicranograptus nicholsoni whitianus.Dicranograptus rectus Hopkinson.Graptolithus ramosus Salter, Quart. Jour. Geol. Soc. London, 5, 1849, p. 16, pi. 1,fig. 7.Dicranograptus rectus Hopkinson, Geol. Mag., 9, 1872, p. 508, pi. 12, fig. 10. ? Elles and Wood, Mon. British Grapt., 4, 1904, p. 169, pi. 24, figs. 4a-c.Ordo\ician: South Scotland (Glenkiln); Arkansas (Normanskill-Stringtowu).Dicranograptus sextans Hopkinson. See Dicellograptus sextans.Dicranograptus spinifer (Lapworth) Elles and Wood.Dicranograptus ramosus Hopkinson, Geol. Mag., 7, 1870, p. 358, pi. 16, fig. 5.?Lapworth, Belfast Nat. Field Club, Rep. and Proc, App., 1, pt. 4, 1877, p.140, pi. 7, fig. 1.Dicranograptus ramosus var. spinifer (Lapworth MS.) Elles and Wood, Mon. Brit-ish Grapt., pt. 4, 1904, p. 176, pi. 24, figs. 8a-c.Dicranograptus spinifer Lapworth, Geol. Soc. Quart. Jour. London, 38, 1882, p.610.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 330-332,pi. 22; pi. 23, figs. 2, 3, figs. 259-263.Middle Ordovician: Great Britain (Hartfell and Glenkiln); Glenmont, Stockport,and Mount Moreno, New York (Normanskill).Dicranograptus spinifer geniculatus Ruedemann.Dicranograptus spinifer var. geniculatus Ruedemann, Bull. New York State Mus.,11, pt. 2, 1908, pp. 333, 334, pi. 23, figs. 4-6, text figs. 265-267.Chazyan (Normanskill): Glenmont, and Mount Moreno, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 419DICRANOPELTIS Hawle and Corda. Genotype: Lichas scabra Beyrich.Dicranopeltia Hawle and Corda, Abh. d. k. bohmischen Gesell. Wiss., 5, 1847(extract), p. 141, pi. 7, fig. 75.?Gurich, Neues Jahrb. Min., Geol. Pal., 14,Beilage-Band, 1901, p. 525.?Reed, Quart. Jour. Geol. Soc. London, 58,1902, pp. 63, 61; sec. B, pp. 71, 82.?Grabau and Shinier, N. A. Index Fossils,2, 1910, p. 310.Dlcranopeltis arkansaua (Van Ingen).Arges arkansana Van Ingen, School of Mines Quart., 23,' 1901, p. 61, fig. 19, pi.figs. 19-21.>*iagaran (St. Clair): St. Clair Springs, Independence County, Arkansas.Dicranopeltis decipiens (Winchell and Marcy).Lichas breviceps? Hall, Adv. sheets., 18th Rep. New York State Cab. Nat. Hist.,1865, p. 30 (not Hall, 1864); 20th Rep. New York State Cab. Nat. Hist., 1867,p. 334, p. 377, pi. 21, figs. 12-14; rev. ed., 1870, p. 424, pi. 21, figs. 12-14.Lichas decipiens Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 104,pi. 3, fig. 11.Lichas emarginatus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed.,1879, p. 199.Dicranopeltis decipiens Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt.2, 1907, p. 237, pi. 22, figs. 10, 11.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 311, fig. 1621f, g.Niagaran (Racine): Bridgeport, Hawthorn, and Lemont, Illinois; Grafton, Wis-consin.Dicranopeltis nasuta Weller.Dicranopeltis nasuta Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2,1907, p. 240, pi. 22, figs. 5-7.Niagaran (Racine): Milwaukee, Wisconsin.Dicranopeltis telleri Weller.Dicranopeltis telleri Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2,1907, p. 241, pi. 22, figs. 8-9.Niagaran (Racine): Milwaukee, \\'iscon8in.DICRANOPORA Ulrich. Genotype: Ptilodictya internodia Miller and Dyer.Dicranopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 152, 166. ? Miller, N. A. Geol. Pal., 1889, p. 300.?Ulrich, Geol. Surv. Illinois, 8, 1890,p. 389.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, p. 14.?Simpson, 14thAnn. Rep. State Geol. New York for the year 1894, 1897, p. 545.?Nicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 49.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 745.Dicranopora eraacerata (Nicholson).Ptilodictya emacerata Nicholson, Ann. Mag. Nat. Hist., 4th ser., 15, 1875, p. 179,pi. 14, figs. 3-3b; Pal. Ohio, 2. 1875, p. 261, pi. 25, figs. 5-5b.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1889, p. 826, figs.Dicranopora emacerata Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 40. ^\^liteaves, Pal. Foss., 3, 1895, p. 118.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 827, pi. 32, figs. 13, 13b.Maysville and Richmond: Cincinnati, Ohio, and vicinity; Stony Mountain,Manitoba; Anticosti.Dicranopora fragilis (Billings).Ptilodictya fragilis Billings, Catal. Sil. Foss. Anticosti, 1866, p. 9.Stictopora fragilis Whitfield, Geol. Surv. Wisconsin, 4, 1882, p. 253, pi. 11, tig. 24. 420 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dicranopora fragilis?Continued.Dicranopora fragilis Ulrich, Conlr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 40. ? Whiteaves, Pal. Fogs., 3, 1895, p. 118.Richmond: Charleton Point, Anticosti (Charleton); Iron Ridge, Wisconsin(Maquoketa); Stony Mountain, Manitoba (Stony Mountain).Dicranopora Internodia (Miller and Dyer).Ptilodictya internodia Miller and Dyer, Contr. to Pal., No. 2, 1878, p. 7, pi. 4,figs. 7, 7a.Dicranopora internodia Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 166,pi. 7, figs. 9, 9a.?Miller, N. A. Geol. Pal., 1889, fig. 471 (p. 300).Maysville (J'airmount) : Cincinnati, Ohio, and vicinity.Dicranopora lata Ulrich. See Rhinidictj^a lata.Dicranopora meeki (James).Helopora meeki James, Paleontologist, No. 1, 1878, p. 3.Dicranopora meeki Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 36, pi. 5, fig. 1.Maysville (Mount Hope): Cincinnati, Ohio, and vicinity.Dicranopora nitidula Miller. See Rhinidctya nitidula.Dicranopora parva Ami. Not recognizable.Dicranopora parva Ami, Canadian Rec. Sci., 5, 1892, p. 99.Trenton: Gagnon's Beach, Quebec.Dicranopora trentonensis Ulrich. See Rhinidictya trentonensis.DicTUocRiNiTES Conrad. See Receptaculites Defrance.DicTUOLiTEs Beckii Hall. See Lithodictuon becki.DicTYocEPHALiTEs Bergeron. See Harpides Beyrich.DicTYOCRiNus Hall. See Ischadites Murchison.DicTYocRiNus Conrad. See Receptaculites Defrance.DicTYOGRAPTus Moberg. See Dictyonema Hall.DicTYOGRAPTUs (Desmogeaptus) cancellatus Hopkinson. See Desmograptus can-cellatus.DicTYOGRAPTUs RETicuLATUs Ulrich. See Dictyonema arbusculum.DICTYONELLA Hall. Genotype: Rhynchonella? reticulata Hall.Dictyonella Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 274.?Schuchert, Bull. U. S.Geol. Surv., 87, 1897, pp. 81, 99; Zittel-EastmanTextb.Pal., 1, 1896, p. 312; 2d ed., 1913, p. 396.?Grabau, Bull. Buffalo Soc. Nat.Sci., 7, 1901, p. 179; Bull. New York State Mus., 45, 1901, p. 179.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 209.Eichwaldia Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, pp. 274-277,with figs.?Dall, Amer. Jour. Conch., 6, 1870, p. 98.?Hall and Clarke, Pal.New York, 8, pt. 2, 1893, p. 307; 13th Ann. Rep. New York State Geol., 1895,p. 903.Dictyonella anticostiensis (Billings).Eichwaldia anticostiensis Billings, Cat. Sil. Foss. Anticosti, 1866, p. 10.Dictyonella anticostiensis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 211.Richmond (Charleton): Near West End Lighthouse, Anticosti. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 421DIctyonella conclnna (Hall).Eichwaldia concinna Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. ? 278.?Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 83, fig. 5.Dictyonella concinna Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 211.?Foerste, Jour. Geol., 11, 1903, p. 709 (loc. occ).Niagaran (Brownsport): Perry and Decatur Counties, Tennessee.DIctyonella corallifera (Hall).Atrj-pa corallifera Hall, Pal. New York, 2, 1852, p. 281, pi. 58, fig. 5.Eichwaldia corallifera Hall, 20th Rep. New York State Cab. Nat. Hiat., 1867, p.278.Dictyonella corallifera Schuchert, Bull. U. S. Geol., 87, 1897, p. 211.?Grabau,iSull. New York State Mus., 45, 1901, p. 179, fig. 83; Bull. Buffalo Soc. Nat.Sci., 7, 1901, p. 179, fig. 83.Clinton (Rochester): Lockport, Rochester, etc., New York; Ontario.Dictyonella glbbosa (Hall).Eichwaldia gibbosa Hall, 20th Rep. New York State Cab. Nat. Hist, 18G7, p. 278.?Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 83, figs. 6, 7.Dictyonella gibbosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 211.?Foerste,Jour. Geol., 11, 1903, p. 709.Niagaran (Brownsport): Perry and Decatur Counties, Tennessee.Dictyonella reticulata (Hall).Rhynchonella? reticulata Hall, Trans. Albany Inst., 4, 1863, p. 217.Eichwaldia reticulata Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, pp.275-277, figs. 1-7; 28th Rep., ibid., 1879, p. 169, pi. 26, figs. 50-54; 11th Rep.State Geol. Indiana, 1882, p. 312, pi. 26, figs. 50-54.?Foerste, Bull. Sci. Lab.Denison Univ., 1, 1885, p. 91, pi. 13, fig. 4.?Beecher and Clarke, Mem. NewYork State Mus., 1, 1889, p. 31, pi. 3, figs. 11-13.?Hall and Clarke, Pal. NewYork, 8, pt. 2, 1893, p. 308, figs. 229-235; pi. 83, figs. 8-13.-Foerste, Geol.Ohio, 7, 1895, p. 594, pi. 25, fig. 4.Dictyonella reticulata Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 211.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 210, fig. 247.Silurian: Waldron, Indiana, and Newsom, Tennessee (Waldron); Dayton, Ohio(Brassfield); Wisconsin.DICTYONEMA Hall. Genotype: Gorgonia? retiformis Hall;Dictyonema Hall, Amer. Jour. Sci. Arts, 2d ser., 11, 1851, p. 401; Pal. New York,2, p. 174.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 171.?Hall, Canadian Nat.Geol., 3, 1858, p. 174; Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 142;Pal. New York, 3, p. 15; Geol. Surv. Canada, dec. 2, 18G5, p. 136; 20th Rep.New York State Cab. Hist., 1868, p. 218, rev. ed., p. 252.?Nicholson, Mon.British Grapt., 1872, p. 129.?Dames, Zeits. d. d. geol. Gesell., 25, 1873. p.383.?Zittel, Handb. Pal., 1, 1879, p. 289.?Salter, Mem. Geol. Surv. GreatBritain, 3, 1881, p. 331; 2d ed., p. 535.?Spencer, Bull. Mus. State Missouri, 1,1884, p. 22; Trans. Acad. St. Louis, 4, 1884, pp. 262, 572.?Miller, N. A. Geol.Pal. 1889, p. 185.?Holm, Bihang till K. Sv. Vet.-Akad. Handl., 16, Afd. 4, No.7, 1890, p. 4.?Moberg, Geol. Foren. Stockholm Forhandl., 13, 1891, p. 216;ibid, 16, 1894, p. 230.?Matthew, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p.33.?James, Jour. Cincinnati Soc. Nat. Hist., 16, 1892, p. 153.?Pocta, Syst. Sil.Centre Boheme, 8, pt. 1, 1894, p. 190.?Moberg, Geol. Foren. Stockholm For-handl., 16, 1894, p. 236.?Tornquist, Geol. Foren. Stockholm Forhandl., 16,1894, p. 380.?Guriey, Jour. Geol., 4, 1896, p. 81.?Koken, Die Leitfossilien,Leipzig, 1896, p. 327, fig. 239.?Wiman, Nat. Sci., 9, 1896, p. 243.?Freeh,Leth. Geog., 1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 557.?Grabau, Bull. 422 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.DICTTONEMA?Continued.Buffalo Soc. Nat. Sci., 6, 1899, p. 119; ibid, 7, 1901, p. 133; Bull. New YorkState Mus., 45, 1901, p. 133.?Ruedemann, Mem. New York State Mus., 7,pt. 1, 1904, pp. 591, 592.?Grabau and Shimer, N. A. Index Fossils, 1, 1906,p. 24.?Ruedemann, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 128.Dictyograptue Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p. 667. ? Moberg, Geol. Foren. Stockholm Forhandl., 16, 1894, p. 236.?Tornquist,ibid., 16, 1894, p. 380.DIctyonema arbusculum (Ulrich).Dictyonema irregularis James (not Hall), Paleontologist, 3, 1879, p. 22.Dictyograptus reticulatus Ulrich, Oat. Foss. Cincinnati group, 1880, p. 61 (nnm.nud.).Inocaulis arbuscula Ulrich, Cincinnati Soc. Nat. Hist. Jour., 2, 1879, p. 28, pi. 7,figs. 27, 27a.?Gurley, Jour. Geol., 4, 1896, p. 300.Calyptograptus? arbusculus Spencer, Acad. Sci. St. Louis Trans., 4, 1884, p. 563,footnote (gen. ref.).Dictyonema arbusculum Gurley, in J. F. James, Cincinnati Soc. Nat. Hist. Jour.,1892, p. 153, 16, pt. 2.?Nickles, ibid., 20, 1902, p. 72.?Ruedemann, Mem.New York State Mus., 11, pt. 2,1908, pp. 151-153, figs. 57, 58; Bull. NewYork State Mus., 162, 1912, p. 77, pi. 2, fig. 15.Eden: Covington, Kentucky, and vicinity (Southgate); Indian Ladder, NewYork (Indian Ladder).Holotype and plesiotype.?Cat. Nos. 54288, 54289, U.S.N.M.Dictyonema areyi Gurley.Dictyonema areyi (Gurley MS.) Ruedemann, Mem. New York State Mus., 11,1908, p. 164, pi. 4, fig. 2; text fig. 73.Clinton (Rochester): Rochester, New York.Dictyonema cauaden.se (Whiteaves).Inocaulis Canadensis ^^^liteave^, Pal. Foss. Geol. Surv. Canada, 3, j)t. 3, 1897, p.149, pi. 17, fig. 4.Dictyonema canadensis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,p. 131 (gen. ref.).Black River or Richmond: Inmost Island, Lake Winnipeg, Canada.Dictyonema (Desmograptus) cancellatum Ruedemann. See Desmograptuscancellatus.Dictyonema crassibasale Gurley.Dictyonema gracilis Spencer (not Hall), Canadian Nat., 8, 1878, p. 458; ibid., 10,1882, p. 165; Trans. Acad. Sci. St. Louis, 4, 1884, pp. 573, 574, pi. 2, figs.2, 3; Bull. Mus. Univ. State Missouri, 1, 1884, p. 24, pi. 2, figs. 2, 2a, 3.Dictyonema crassibasale (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909,pp. 19-24, pi. 3, fig. 1; text figs. 21-25.Niagaran dolomite: Hamilton, Ontario.Dictyonema delicatulum Dawson. See Dictyonema perexile.Dictyonema desmoides Gurley.Dictyonema desmoides (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909,pp. 34, 35, pi. 4, fig. 3; text figs. 41-43.Niagaran dolomite: Hamilton, Ontario. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 423DIctyonema expansum Spencer.Dictyonema expausum Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, pp. 464, 575,576, pi. 2, fig. 1; Bull. Mus. Univ. State Missouri, 1, 1884, pp. 14, 25, 26, pi. 2,fig. 1.?Gurley, Jour. Geol., 4, 1896, pp. 96, 308.?Bassler, Bull. U. S. Nat.Mus., 65, 1909, pp. 31-33, figs. 36, 37.Niagaran dolomite: Hamilton, Ontario.Dictyonema fiUramus Gurley.Dictyonema filiramus (Gurley MS.) Bassler, Bull. IT. S. Nat. Mus., 65, 1909,p. 34, figs. 38-40.Niagaran dolomite: Hamilton, Ontario.Dictyonema flabelllforme (Eichwald).Gorgonia flabelliformis Eichwald, Sil. Schicht. in Estland, 1840, p. 207; TlrweltRusbI., 1842, p. 45, tab. 1, fig. 6.Fenestella fliabelliformis Eichwald, Soc. Natur. Moscou, No. 1, 1854, p. 6; ibid.,1855, No. 4, p. 453.Ehabdinopora flabelliformis Eichwald, Leth. Ross., 1860, p. 369.Dictyograptus flabelliformis Brogger, Die sil Etagen 2 and 3, etc., 1882, p. 30, pi.12, figs. 17-19.Dictyonema flabelliformis Roemer, Zeits. d. d. geol. Gesell, 11, 1859, p. 558. ? Tornquist, Lunds Univ. Arskrift, 2, 3, 1865, p. 22, pi. 1, fig. 14.?Tullberg,Bih. till K. Sveuska Vet. -Akad. Handl., 6, No. 13, 1882.?Schmidt, Quart.Jour. Geol. Soc, 1862, p. 517.?Dawson, Rep., Peter Ridpath Mus., McGill,Univ., 1883, p. 16,?Moberg, Sver. Geol. Und. Afh. och. upps., ser. c. No.109, 1890, p. 31.?Matthew, Trans. Roy. Soc. Canada, 9, 1892, p. 34, pi. 12,figs. l-3b; Trans. Roy. Soc. Canada, 10, 1893, sec. 4, p. 10, footnote.?Wiman,Bull. Geol. Inst. Upsala, 2, pt. 2, 1895, p. 55, pi. 10, figs. 13, 14.?Matthew,Trans. New York Acad. Sci., 14, 1895, p. 262, 272, pi. 49, figs. 1, 2.?Wiman,Nat. Sci., 9, 1896, p. 245.?Roemer and Freeh, Leth. Geog., 1 Theil,Pal. 1., 1897, p. 572, pi. 2, figs. 3a, b.?Dale, U. S. Geol. Surv., 19th Ann.Rep., pt. 3, 1899, p. 185.?Ruedemann, New York State Mus., 1903, p. 936;Mem. New York State Mus., 7, pt. 1, 1904, pp. 599-606, pi. 1, figs. 1-22, textfigs. 26, 27.?Moberg, Lunds Univ., Arskrift, N. F. Afdeln, 2, vol. 2, No. 7,pi. 1, fig. 6, 1906.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 24,fig. 32.?Westergard, Lunds Univ. Arski-ift, N. F., Afdeln, 2, vol. 5, No. 3,1909, pi. 3, figs. 3-5.Graptopora socialis Salter, Amer. Assoc. Proc, 11, 1857, p. 65.Dictyonema sociale Salter, Mem. Geol. Surv., 3, 1866, p. 331, pi. 4, fig. 1.?Lap-worth, Trans. Roy. Soc. Canada, 4, 1887, p. 168, sec. 4.Dictyonema graptolithinum Kjerulf, Veiviser Christiania, 1865, pp. 1, 3,figs. 4, 5.Bryograptus? multiramosus Gurley, Jour. Geol., 4, 1896, p. 64.Dictyonema norvegicum Kjerulf, Veiviser Christiania, 1865, pp. 1, 2, figs. 1-3.Dictyonema flabelllforme var. Norvegicum, Matthew, Trans. Roy. Soc. Canada,9, sec. 4, 1892, p. 37.?Hahn, Ann. New York Acad. Sci., 22, 1912, p. 139.Dictyonema flabelliforme var. Acadicum Matthew, Trans. Roy. Soc. Canada,9, sec. 4, 1892, p. 36.?Hahn, Ann. New York Acad. Sci., 22, 1912, p. 137.Dictyonema flabelliforme var. confertum Matthew, Trans. Roy. Soc. Canada, 9,sec. 4, 1892, p. 36.?Hahn, Ann. New York Acad. Sci., 22, 1912, p. 138.Dictyonema flabelliforme ruedemanni Hahn, Ann. New York Acad. Sci., 22,1912, p. 139.Dictyonema flabelliforme desmograptus Hahn, Ann. New York Acad. Sci,, 22,1912, p. 139. 424 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dlctyonema fiabellifornie?Continued.Canadian (Dictyonema flabelliforme bed): Esthonia, Russia, Sweden, Wales,Belgium, etc.; elate belt of Rensselaer and Washington Counties, New York;Vermont; St. John Basin, New Brunswick.Dictyonema flabelliforme var. acadicum Matthew. See Dictyonema flabelliforme.Dictyonema flabelliforme var. confertum Matthew. See Dictyonema flabel-liforme.Dictyonema flabelliforme desmograptus Hahn. See Dictyonema flabelliforme.Dictyonema flabelliforme norvegica Hahn. See Dictyonema flabelliforme.Dictyonema flabelliforme ruedemanni Hahn. See Dictyonema flabelliforme.Dictyonema furciferum Ruedemann.Dictyonema n. sp. Ruedemann, New York State Pal., Ann. Rep., 1902, p. 570.Dictyonema furciferum Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,pp. 606, 607, pi. 3, fig. 11, text fig. 28.Callograptus grabaui Hahn, Annals New York Acad. Sci., 22, 1912, p. 142, figs.Canadian: Deepkill, Rensselaer County, New York (Deepkill, Tetragraptus andD. bifidus zones); Bellefonte, Pennsylvania (base of Stonehenge); PointLevis, Quebec (Levis Diplograptus dentatus zone).Dictyonema gracile Hall.Gorgonia? Hall, Geol. New York, 4th Dist., 1843, p. 115, fig. 42.Dictyonema gi-acilis Hall, Pal. New York, 2, 1852, p. 175, pi. 40G, fig. la-d.?Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 7, fig. 2.?Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 225.?Rominger,Geol. Surv. Michigan, 1, pt. 3, 1873, p. 44.?Lesquereux, Geol. Sxu*v. Indiana,13th Rep., 1883, p. 30.?Pocta, Syst. Sil. Centre Boheme, 8, 1894, p. 193.?Gurley, Jom*. Geol., 4, 1896, p. 308.?Grabau and Shimer, N. A. Index Fossils,1, 1906, p. 25, fig. 34.?Ruedemann, Mem. New York State Mus., 11, pt. 2,1908, p. 157, pi. 1, fig. 5, text figs. 65-68.Clinton (Rochester): Lockport, etc., New York; Ontario.Dictyonema gracilis Spencer. See Dictyonema crassibasale.Dictyonema grande Nicholson.Dictyonema grandis Nicholson, Ann. Mag. Nat. Hist., 4th Ser., 11, 1873, p. 134,fig. 1.Canadian (Levis): Point Levis, Quebec.Dictyonema graptolithinum Kjerulf. See Dictyonema flabelliforme.Dictyonema hisingeri Goppert. See Dictyonema flabelliforme.Dictyonema irregulare Hall.Dictyonema irregularis Hall, Geol. Surv. Canada, dec. 2, 1865, p. 136, pi. 20,figs. 1, 2.?Hoek, Neues Jahrb. Min., Geol., Pal., 34, 1912, p. 225, pi. 2,figs. 3-5.Canadian: Point Levia, Quebec (Levis, Diplograptus dentatus zone); Bolivia.Dictyonema irregularis James. See Dictyonema arbusculum.Dictyonema muitiramosum Ruedemann.Dictyonema muitiramosum Ruedemann, Bull. New York State Mus., 162, 1912,p. 78, pi. 2, fig. 16.Trenton (Schenectady): Rotterdam Junction, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 425DIctyonema murrayl Hall.Dictyonema murrayi Ilall, Canadian Org. Rem., Geol., Surv. Canada, dec. 2, 1865,p. 138, pi. 20, figs. 6, 7.?Ruedemann, Mem. New York State Mus., 7, pt. 1,1904, p. 606, pi. 3, fig. 12.Canadian: Point Levis, Quebec (Levis, C'lonograptua zone), Rensselaer County,New York (Deepkill).Plesiotype.?Gat. No. 54287, U.S.N.M.Dictyonema murrayl tarljense Hoek.Dictyonema murrayi var. tarijense Hoek, Neuea Jahrb. Min., Geol., Pal., 34, 1912,p. 224, pi. 12. figs. 1. 2.Lowest Ordovlcian: Tarija, Bolivia.Dictyonema neenah Hall.Dictyonema neenah Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 7; 20th Rep. NewYork State Cab. Nat. Hist., 1878, p. 225.?Pocta, Syst. Sii. Centre Boheme,8, 1894, p. 193.?Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, pi. 5.fig. 13, p. 47.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 150.Black River (Platteville): Fox River, near Appleton, Wisconsin.Dictyonema norvegicum Kjerulf. See Dictyonema flabelliforme.Dictyonema obovatum Gurley.Dictyonema obovatum Gurley, Ann. Rep. Geol. Surv. Arkansas, 1890, 3, 1892,p. 418; Jour. Geol., 4, 1896, p. 300.?Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, p. 151.Chazyan (Normansldil-Stringtown): Near Crystal Springs, Arkansas.Dictyonema parallelum Gurley.Dictyonema parallelum (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909,pp. 37, 38, pi. 4, fig. 2, text fig. 47.Niagaran dolomite: Hamilton, Ontario.Dictyonema percrassum Gurley.Dictyonema percrassus (Gurley MS.) Bassler, Bidl. IT. S. Nat. Mus., 65, 1909,pp. 35, 36, figs. 44, 45.Niagaran dolomite: Hamilton, Ontario.Dictyonema perexile Gurley.Dictyonema delicatulum Dawson (not Lapworth), Canadian Nat. Geol., 10, 1883,p. 461 (footnote).?Matthew, Trans. Royal Soc. Canada, 10, see. 4, 1893,p. 96.Canadian: Point Levis, Quebec (Levis); St. John, New Brunswick (Bretonian ? Div. C3d).Dictyonema peroracilis Hall. See Desmograptiis pergracilis.Dictyonema pertenue Foerste.Dictyonema pertenue Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p.107, pi. 8, fig. 27a, b; Geol. Surv. Ohio, Pal., 7, 1893, p. 600, pi. 27, figs. 27a, b.?Gurley, Jour. Geol., 4, 1896, p. 308.?Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, p. 153, figs. 59, 60.Tapper Medinan (Brassfield): Soldiers Home near Dayton, Oliio.Dictyonema polymorphum Gurley.Dictyonema tenellum Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, pi. 1, fig. 13(not description, p. 576); Bull. Mua. Univ. State Missouri, 1, 1884, pi. 1, fig. 13(not description, p. 26). 426 BULLETIN 92, UIHTED STATES NATIONAL MUSEUM.Dictyonema polymorphum?Continued.Calyptograptus subretiformis Spencer (part), Trans. Acad. Sci. St. Louis, 4, 1884^pi. 4, fig. 2; Bull. Mus. Univ. State Missouri, 1, 1884, pi. 4, fig. 2.Dictyonema polymorphum (Gurley MS.) Ruedemann, Mem. New York StateMus., 11, 1908, p. 158, pi. 2, fig. 3; pi. 3, figs. 4, 5, 6; p. 160, figa. 60-72.?Bassler, Bull. U. S. Nat. Mua., No. 65, 1909, p. 24, pi. 4, fig.ll.Niagaran: Hamilton, Ontario; Middleport, New York (Rochester).Holotype.?C&t. No. 54278, U.S.N.M.Dictyonema quadrangulare (Hall).Dictyonema quadrangularis Hall, Geol. Sur\^ Canada, dec. 2, 1865, p. 138, pi. 20,fig. 5.?Matthew, Trans. Royal Soc. Canada, 10, sec. 4, 1893, p. 96.Canadian: Point Levis, Quebec (Levis, Clonograptus zone); St. John, NewBrunswick (Bretonian?Div. C3d).Dictyonema rectilineatum Ruedemann.Dictyonema n. sp. Ruedemann, New York State Pal. Ann. Rep., 1902, p. 570.Dictyonema rectilineatum Ruedemann, Mem. New York State Mus., 7, pt. 1,1904, pp. 607-609, pi. 3, figs. 9, 10, text fig. 29.Canadian: Deepkill, Rensselaer County, New York (Deepkill, Diplograptuadentatiis zone); Point Levis, Quebec (Levis, dentatus zone).Dictyonema retiforme (Hall).Gorgonia? reteformis Hall, Rep. Surv. 4th Geol. Dist. New York, 1843, p. 115,fig. 1.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 260, figs.Dictyonema retiformis Hall, Pal. New York, 2, 1852, p. 174, pi. 40F, fig. la, b.?Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 55, pi. 7,fig. 1.?Hall, Geol. Surv^ Canada, dec. 2, 1865, p. 12, fig. 10; 20th Rep. NewYork State Cab. Hist., 1868, p. 178, fig. 11; rev. ed., 1870, p. 210, fig. 11; p.225.?Nicholson, Mon. British Grapt., 1872, p. 129, fig. 69.?Zittel, Handl).Pal., 1, 1879, p. 289, fig. 195.?Spencer, Bull. Mus. Univ. State Missouri,1, 1884, p. 14, 23, 24, pi. 3, figs. 1, la, 2, 2a; Trans. Acad. Sci. St. Louis, 4, 1884,p. 573, pi. 3, fig. 1, 2.?Miller, N. A. Geol. Pal., 1889, p. 185, text fig. 168.?Pocta, Syst. Sil. Centre Boheme, 8, 1894, p. 192, 193.?Gurley, Jour. Geol., 4,1896, pp. 96, 308.?Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3Lief., 1897, p. 575, fig. 145.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p.133, fig. 27; Bull. New York State Mus., 45, 1901, pp. 133, 134, fig. 27.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 25, fig. 33.?Ruedemann,Mem. New York State Mus., 11, 1908, p. 155, fig. 64, pi. 3, fig. 1.?Bassler,Bull. U. S. Nat. Mus., 65, 1909, pp. 18, 19, figs. 19, 20.Clinton (Rochester): Rochester, Lockport, etc., New York; Hamilton. Ontario.Dictyonema robustum Hall.Dictyonema robusta Hall, Geol. Sur\-. Canada, dec. 2, 1865, p. 137, pi. 20, figa. 3, 4.Canadian (Levia, Clonograptus zone): Point Levis, Quebec.Dictyonema scalariforme Foerste.Dictyonema scalariforme Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p.108, pi. 8, figs. 28, 29; Geol. Surv. Ohio, Pal., 7, 1893, p. 600, pi. 27, figs. 28,29.?Gurley, Jour. Geol., 4, 1896, p. 308.?Ruedemann, Mem. New YorkState Mus.," 11, pt. 2, 1908, p. 153, pi. 1, fig. 3, text figs. 61-63.Upper Medinan (Brassfield) : Soldiers Home, Dayton, Ohio.Clinton shale: Near Clinton, New York.Dictyonema sociaxe Salter. See Dictyonema flabelliforme. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 427Dlctyonema spencerl Gurley.Dictyonema spenceri (Gurley MS.) Bassler, Bull, U. S. Nat. Mus., 65, 1909,pp. 36, 37, pi. 4, fig. 1, text fig. 4(i.Niagaran dolomite: Hamilton, Ontario.Dlctyonema spiniferum Ruedemann.Dictyonema spiniferum Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,p. 151, pi. 1, fig. 4, text figs. 55, 56.Chazyan (Normansldll): Glenmont, Albany County, New York.Dlctyonema splendens Billings.Dictyonema splendens Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p.12, fig. 2, 2a.?Spencer, Bull. Mus. Univ. State Missouri, 1, 1884, p. 27;Trans. Acad. Sci. St. Louis, 4, 1884, p. 577.?Foerste, Bull. Sci. Lab. DenisonUniv., 2, pt. 1, 1887, p. 108.Dictyonema cf. splendens Clarke, Mem. New York State Mus., 3, 1900, p. 64.Silurian or HeUler]:)ergian: Between Cape Gaspe and Cape Rosier, Canada.Dlctyonema stenactinotum Gurley.Dictyonema stenactinotum (Gurley MS.) Bassler, Bull. U. S. Nal. Mus., 65, 1909,pp. 30, 31, 1)1. 3, fig. 2, text fig. 34.Niagaran dolomite: Hamilton, Ontario.Dlctyonema .subretiforme (Spencer).Calyptograptus subretiformis Spencer, Canadian Nat., n. a., 8, 1880, pp. 458, 460;ibid., 10, 1882, p. 165; Bull. I^Ius. Univ. State Missouri, 1, 1884, p. 28, pi. 4,fig. 1 (not fig. 2); Trans. Acad. Sci. St. Louis. 4, 1884, p. 578, pi. 4, fig. 1 (notfig. 2).?Gurley, Jour. Geol., 4, 1896, pp. 93, 308.Dictyonema subretiforme Ruedemann, Mem. New York State Mus., 11, 1908, p.162, pi. 2, figs. 1, 2.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 26-28, figs.30, 31.Niagaran: Hamilton, Ontario; Middleport. New York (Rochester).Dictyonema tenellum Spencer (part). See Dictyonema polymorphum.Dictyonema tenellum Spencer.Dictyonema tenellum Spencer, Canadian Nat., n. s., 8, 1878, pp. 458, 459; ibid.,10, 1882, p. 165; Trans. Acad. Sci. St. Louis, 4, 1884, pp. 564, 576 (not pi. 1,fig. 13); Bull. Mus. Univ. State Missouri, 1, 1884, pp. 14, 26 (not pi. 1, fig.13).?Miller, N. A. Geol. Pal., 1889, p. 185.?Guriey, Jotir. Geol., 4, 1896, pp.96, 308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 28-30, pi. 2, fig. 4, textfigs. 32, 33.Niagaran dolomite: Hamilton, Ontario.Dlctyonema websteri Dawson.Dictyonema websteri Dawson, Acadian Geol., Suppl. Chap., 1860, p. 60, fig. 46;ibid., 2d ed., 1868, p. 563, fig. 196; Canadian Nat. Geol., 5, 1860, p. 139, fig. 2?Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 225.?Spencer, Trans.Acad. Sci. St. Louis, 4, 1884, p. 576; Bull. Mus. Univ. State Missouri, 1, 1884,'p. 26.?Ruedemann, Proc. and Trans. Nova Scotian Inst. Sci., 11, pt. 4, 1908,p. xhii.Sihirian: Kings County, Nova Scotia.DicTYOPHYTON BECKi Miller. See Lithodictuon becki.Dictyophytra Ratiff. Not recognized.Dictyophytra (? in place of Dictyophyton) Rauff, Palseontographica, 40, 1894,p. 249.Observation.?Dictyophytra was proposed by Rauff probably to replace Dicty-ophyton, but its description was not given. 428 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.DiCTYOPHYTRA? Walcotti Rauff. >See Cyathophyciis walcotti.DICTTORHABDUS Walcott. Genotype: D. prise us Walcott.Dictyorhabdiis Walcott, BiilL Geol. Soc. Amer., 3, 1892, p. 165.Dictyorhabdus priscus Walcott.Dictyorhabdxis priscus Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 165, pi. 3,figs. 1-5.Black River (Harding) : Canon City, Colorado.DiCTYOSTOMA Spencer. See Dictyostroma Nicholson.DiCTYosTOMA RETicui-ATUM Spencer. See Ceramoporella reticulata.DICTYOSTROMA Nicholson. Genotype: D. undulatum Nicholson.Dictyostroma Nicholson, Pal. Ohio, 2, 1875, p. 254.?Nicholson and Murie, Jour.Linn. Soc. London, Zool., 14, p. 224.?Zittel, Handb. Pal., 1, 1879, p. 286.?Dawson, Quart. Jour. Geol. Soc. London, 35, 1879, p. 56.?Nicholson, Mon.British Strom., Pal. Soc, 1886, p. 85.?Waagen and Wentzel, Mem. Geol.Surv. Indica, Pal. Indica, 13th ser., 1, 1888, p. 944.?Miller, N. A. Geol. Pal.,1889, p. 158.?Parks, Univ. Toronto Studies, Geol. Ser., 5, 1908, p. 56.Dictyostoma Spencer, Trans. Acad. Sci. St. Louis, 4, 1884, p. 601; Bull. Mus.Univ. State Missouri, 1, 1884, p. 51.Milleria Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, expl.of pi. 46 (Genotype: M. laminata Davis).Observation.?Dictyostroma is not a stromatoporoid, but is a coral closely alliedif not identical with Coenites.DictyostromX reticulatum Wliiteaves. See Ceramoporella reticulata.Dictyostroma undulatum Nicholson.Dictyostroma undulatum Nicholson, Pal. Ohio, 2, 1875, p. 254, pi. 24, figs. 6, 6c. ? Nicholson and Jhirie, Jour. Linn. Soc. Zool., 14, 1878, p. 224.?Miller, N. A.Geol. Pal., 1889, p. 158, fig. 101.?Nicholson, Mon. British Strom., 1892, pp.85, 232.?Parks, Univ. Toronto Studies, Geol. Ser., 5. 1908, p. 57, pi. 14, figs.3, 4; pi. ]5, figs. 3, 4, 7, 8.Alveolites stromatoporoides Romiuger, Proc. Acad. Nat. Sci. Philadelphia, 1886,p. 55.Milleria laminata Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, pi. 46, fig. 9.Niagaran (Louisville): Louisville, Kentucky.DiDYMooRAPSus Pictct. See Didymograptus McCoy.DiDYMOGRAPSus CADUCEUS Salter. See Tetragraptus serra and T. similia.DiDYMOGRAPSUS coNVEXUs Gurley. See Didymograptus sagittariiis.DiDYMOGRAPSUS uiVARiCATUS. See Dlcollograptus diviiricatus.DiDYMOGRAPSUS GEMiNUs Xicliolsuii. Soc 1 >idymograplus luimis.DiDYMOGRAPSUS MURCHisoNi FURCiLLATus (iiirley. See Didymograptus furcillarus.DIDYMOGRAPTUS McCuy. Genotype: D. murchisoni McCoy.Didymograpsus McCoy, British Pal. Fossils, pt. 2, 1851, p. 9.?Chapman, Cana-dian Jour., n. B., 1, 1856, p. 389.?Pictet, Traits de Pal., 2d ed., 4, 1857, p.474.?Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, p. 9, 138.?Car-ruthere, Geol. Mag., 5, 1868, pp. 73, 128.?Nicholson, Ann. Mag. Nat. Hist.,4th Ber., 5, 1870, p. 337; Mon. British Grapt., 1872, p. 103. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 429DIDYMOGRAPTUS?Continued.DidymograptuBHall, 20th Rep. New York State Cab. Nat. Hist., 1868, pp. 217, 2'M;rev. ed. (1870), p. 251.?Zittel, Handb. Pal., 1, 1879, p. 298.?Tullberg,Sverigee Geol. Undere., eer. C, No. 55, 1883, p. 12.?Hermann, Geol. Mag.,dec. 3, 3, 1886, p. 14.?Miller, N. A. Geol. Pal., 1889, p. 185.?Tornquist,Lunds I'nivers. Arsskrift, 26, No. 4, 1890, p. 15.?Barrois, Ann. Soc. Geol.du Nord, 21, Lille, 1893, p. 108.?Holm, Sveriges Geol. Unders., ser. C, No.150, 1895, p. 15; Geol. Foren. Stockholm Forhandl., 17, 1895, p. 331; Geol.Mag., dec. 4, 2, 1895, pp. 433, 439, pi. 14, figs. 1-3, 7, 8.?Nicholson and Mnrie,Geol. Mag., dec. 4, 2, 1895, pp. 530-535, figs.?Koken, Die Leitfossilien, Leip-zig, 1896, p. 328.?Wiman, Bull. Geol. Inst. LTniv. Upsala, 2, pt. 2, No. 4,1896, p. 266; Nat. Sci., 9, 1896, p. 191.?Walther, Zeits. d. d. geol. Gesell.,49, 1897, p. 251.?Roemer and Freeh, Leth. geog., 1 Theil, Leth. Pal., 1,3 Lief., 1897, p. 587.?Ruedemann, Amer. Nat., 32, 1898, p. 5; Zittel-East-man Textb. Pal., 1, 1900, p. 118.?Tornquist, Lunds Univers. Arsskrift, 37,No. 5, 1901, p. 10.?Ellea and Wood, Mon. British Grapt., Pal. Soc, 1901,p. 5.?Ruedemann, Mem. New York State Mus., 7, 1904, p. 666, 668.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 30.?Ruedemann, Mem.New York State Mus., 11, pt. 2, 1908, p. 247; Zittel-Eastman Textb. Pal.,2d ed., 1913, p. 129.DIdymograptus acuticlens Lapworth.Didymograptus affinis Hopkinson, Quart. Jour. Geol. Soc, 31, 1875, pi. 33,figs. 6b, cDidymograptus acutidens (Lapworth MS.) Ellesand Wood, Mon. British Grapt.,pt. 1, Pal. Soc, 1901, p. 25, pi. 2, figs. 3a-d.?Ruedemann, Mem. New YorkState Mus., 7, pt. 1, 1904, pp. 683, 684, pi. 13, fig. 15, text figs. 77, 78.Canadian: St. Davids District, Wales, and South Shropshire, England (Arenig);Deepkill, Rensselaer County, New York (Deepkill, Didymograptus bifiduszone).Didymograptus affinis Hopkinson. See Didymograptus acutidens.Didymograptus arcuatus (Hall).Graptolithus arcuatus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 79, pi. 2, figs.e-10.Graptolithus (Monoprion) arcuatus Hall, 20th Rep. New York State Cab. Nat.Hist., 1868, p. 226; rev. ed. (1870), p. 260; p. 223.Didymograpsus arcuatus Gurley, Jour. Geol., 4, 1896, p. 96 (gen. ref.).Didymograptus arcuatus EUes and W^ood, Mon. British Grapt., Pal. Soc, 1903,p. li (gen. ref.).Canadian (Levis, Didymograptus zone): Point Levis, Quebec.Didymograptus bifldus (Hall).Graptolithus bifidus Hall, Canadian Nat. and Geol., 3, 1858, p. 164; Geol. Surv.Canada, Rep. Progr. for 1857, 1858, p. 130; Geol. Surv. Canada, dec. 2, 1865,p. 73, pi. 1, figs. 16-18; pi. 3, figs. 9, 10.Graptolithus (Monoprion) bifidus Hall, 20th Rep. New York State Cab. Nat. Hist.1869, p. 226, pi. 3, figs. 13, 14; rev. ed., 1870, p. 241; p. 223.Didymograptus bifidus Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, p.136; Ann. Mag. Nat. Hist., 4th ser., 5, p. 346, fig. 7.?Hopkinson, Quart.Jour. Geol. Soc, 31, 1875, p. 646, pi. 33, figs. 8a-e.?Brogger, Diesil. Etagen 2,3, etc. Kristiania, 1882, p. 41.?Herrmann, Geol. Mag.,3deer.,3, 1886, p. 15. ? Ami, Geol. Surv. Canada Rep., 2d ser., 3, pt. 2, 1889, p. 116k.?Barrois, Ann.de la Soc. Geol. du Nord., 20, 1892, p. 92.?Files, Quart. Jour. Geol. SocLondon, 54, 1898, p. 511.?Elles and Wood, Mon. British Grapt., pt. 1, Pal. 430 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Dldymograptus bifldus?Continued.Soc, 1901, p. 42, figs. 26a-b, pi. 4, figs, la^f; p. 6, figs. 1, 2.?Ruedemann,New York State Pal. Ann. Rep., 1902, pp. 566, 567; Mem. New York StateMus., 7, pt. 1, 1904, pp. 689-692, pi. 15, figs. 1-3, text figs. 86, 87.?Grabauand Shimer, N. A. Index Fossils, 1, 1906, p. 31, fig. 47c, 48.Canadian: Point Levis, Quebec (Levis, Didymograptus bifidus zone); Deepkill,Rensselaer County, New York (Deepkill, D. bifidus zone); Nevada; SouthScotland and Wales (Arenig) ; England; Scandinavia; Bohemia; France.Didymograptus bipunctatus (Gurley).Didymograpsus bipunctatus Gurley, Jour. Geol.,4, 1896, p. 65, pi. 5, figs. 7, 7a.Canadian (Levis): Near Point Levis, Quebec.Didymograptus caduceus of authors. See Tetragraptus similis, Didymograptus(Isograptus) caduceus and T. similis.Didymograptus (Isograptus) caduceus (Salter).Didymograpsus caduceus Salter (part). Quart. Jour. Geol. Soc. London, 9, 1853,p. 87, fig. la; ibid., 19, 1863, p. 138, fig. 13a.Graptolithus caduceus Chapman, Canadian Jour., n. s., 1, 1856, p. 390, fig. 3.Graptolites (Didymograpsus) caduceus McCoy, Pal. Geol. Surv. Victoria, Prodr.Pal. Victoria, dec. 2, 1874, p. 30, pi. 20, figs. 3-5a.Didymograptus caduceus T. S. Hall, Proc. Royal Soc. Victoria, n. s., 8, 1896, p. 69.Didymograptus (Isograptus) caduceus Ruedemann, Mem. New York State Mus.,7, pt. 1, 1904, pp. 693-698, pi. 15, figs. 6, 7, text fig. 89.Tetragraptus caduceus Brogger, Die Sil. Etagen 2, 3, Kristiania, 1882, p. 39.Didymograptus gibberulus Nicholson, Ann. Mag. Nat. Hist., 4th ser., 16, 1875,p. 271, pi. 7, figs. 3, 3a, 3b.?Moberg, Geol. Foren. Stockh. Forh., 13, 1891,p. 221.?Holm, Sver. Geol. Und. Afh. och upps., ser. C, No. 150, 1895, p. 18.?Elles, Quart. Jour. Geol. Soc, 54, 1898, p. 496.?Files and Wood, Mon. BritishGrapt., pt. 1, Pal. Soc, 1901, p. 52, figs. 33a, b; pi. 2, figs. 9a-e.Didymograptus (Isograptus) gibberulus Roemer and Freeh, Leth. Pal., 1, 1897,p. 93, fig. 161.Isogi-aptus gibbenilus Moberg, Geol. Foren. Stockh. Forh., 14, 1892, p. 346, pi. 8,figs. 3-7.?Tornquist, Lunds Univ. Arsskrift, 37, Afd. 2, 1901, p. 23, pi. 3,figs. 16-19.Tetragraptus bryonoides Etheridge, jr., Ann. Mag. Nat. Hist., 4th ser., 1874, 14,p. 2, pi. 3, figs. 3, 4.Phyllograptus stella Hopkinson, Quart. Jour. Geol. Soc. London, 31, 1875, p.658, pi. 34, fig. t).Lower Ordovician: England (Skiddaw); Wales (Arenig); Scandinavia; Aus-tralia; Deepkill, Rensselaer County, New York (Deepkill, Didymograptusbifidus zone); Point Levis, Quebec (Levis, Diplograptus dentatue zone);Arkansas.Didymograptus caduceus nanus Ruedemann.Didymograptus caduceus nanus Ruedemann, Mem. New York State Mus., 7, pt.1, 1904, p. 698, pi. 15, figs. 8, 9, text fig. 90.Canadian: Deepkill, Rensselaer County, New York (Deepkill, Diplograptus den-tatus zone); Point Levis, Quebec (Levis, D. dentatus zone); Arkansas.Didymograptus cuspidatus Ruedemann.Didymograptus cuspidatus Ruedemann, Mem. New York State Mus., 7, pt. 1,1904, pp. 684, 685, pi. 13, fig. 16, text figs. 79, 80.Canadian (Deepkill, Diplograptus dentatus zone): Mt. Moreno, Columbia County,New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES, 431DiDTMOGRAPTUS DivARiCATUS Nicholson. See Dicellograptus divaricatiis.DiDTMOGRAPTUS? ELEGANs Ruedemann. See Monograptus elegans.Didymograptus ellesee Ruedemann.Didymograptus (Leptograptus) (part.) Ruedemann, New York State Pal. Ann.Rep., 1902, p. 589.Didymograptus ellesi Ruedemann, Mem. New York State Mas., 7, 1904, pt. 1,pp. 682, 683, pi. 14, figs. 22-24, text figs. 75, 76. (Con-ected to elles* in 1908,Mem. 11, pt. 2, p. 134.)Canadian (Deepkill, Didj'mograptus bifidus zone): Deepkill, Rensselaer County,New York.Didymograptus euodus Lapworth.Didymograptus euodus Lapworth, Quart. Jour. Geol. Soc. London, 31, 1875, p.645, pi. 35, fig. la-c?Elles and Wood, Mon. British Grapt., pt. 1, Pal. Soc,p. 21, pi. 1, figs. 10a, b.Ordovician (Lower Llandeilo): Abereiddy Bay, St. David's District, Wales.Canadian (Upper Tetragraptus zone): Twelve miles west of Little Rock, Arkansas.Didymograptus extensus (Hall).Graptolithus extensus Hall, Geol. Surv. Can. Rep., 1858, p. 132; Canadian Nat.Geol., 3, 1858, p. 166; Geol. Surv. Canada, dec. 2, p. 80, pi. 2, figs. 11-16.Graptolithus (Monoprion) extensus Hall, 20th Rep. New York State Cab. Nat.Hist., 1868, p. 195, pi. 3, fig. 12; rev. ed., 1870, p. 225, pi. 3, fig. 12, p. 228.Didymograptus extensus Nicholson, Ann. Mag. Nat. Hist., 4th ser., v. 1870, 5, 341,pi. 7, figs. 2, 2a.?Hopkinson, Quart. Jour. Geol. Soc, 31, 1875, p. 642, pi. 33,figs. la-Id.?Brogger, Die Sil. Etagen 2, 3, 1882, p. 40, Kristiania.?Herrmann,Geol. Mag., dec. 3, 3, 1886, p. 14.?Lapworth, Proc and Trans. Roy. Soc Can.,4, 1887, pp. 168, 184.?Ami, Geol. Sur. Can. Rep., 2d ser., 3, pt. 2, 1889, p.116k.?Roemer and Freeh, Leth. Pal., 1, 1897, p. 591.?Elles, Quart. Jour.Geol. Soc, London, 54, 1898, p. 504.?Tornquist, Lunds Univ. Arsskrift, 37,Af. 2, Nr. 5, 1901, p. 14, pi. 1, figs. 25-30.?Elles and Wood, Mon. BritishGrapt., pt. 1, Pal. Soc, 1901, p. 8, pi. 1, figs, la, b., text figs. 4a-d.?Ruede-mann, New York State Pal., Ann. Rep., 1902, p. 556; Mem. New York StateMuB., 7, pt. 1, 1904, pp. 668-671, pi. 13, figs. 17, 18; pi. 14, figs. 1-4; textfigs. 62-65.Didymograpsus extensus Gurley, Jour. Geol., 4, 1896, p. 96 (gen. ref.).Graptolites (Didymograptus) extensus McCoy, Geol. Surv. Victoria, Prodr. Pal.,dec. 2, 1875, p. 29, pi. 20, figs. 1, la.Graptolithus constrictus Hall (part), Geol. Surv. Canada, Can. Org. Rem., dec 2,1865, p. 76, pi. 1, figs. 23-27.Canadian: Point Levis, Quebec (Levis, Didymograptus zone); Deepkill, Rensse-laer County, New York (Deepkill, Tetragraptus zone); Arkansas; SouthScotland; Wales (Arenig); Wales (Skiddaw); Christiania; Scania; Australia.Didymograptus extenuatus (Hall).Graptolithus extenuatus Hall, Geol. Surv. Canada, dec 2, 1865, p. 75, pi. 1,figs. 21, 22.GraptoUthus (Monoprion) extenuatus Hall, 20th Rep. New York State Cab. Hist.,1868, p. 226; rev. ed., 1870, p. 241.Didymograpsus extenuatus Gurley, Jour. Geol., 4, 1896, p. 96 (gen. ref.).Didymograptus extenuatus Elles and Wood, Mon. British Grapt., Pal. Soc, 1903,p. li (gen. ref.).Canadian (Levis, Diplograptus dentatus zone): Point Levis, Quebec. 432 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dldymograptus flliformls TiillberTat. Sci. Philadelphia, 1, 1843, p. 332. ? Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 70.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 199.Leptsena deflecta Hall, Pal. New York, 1, 1847, p. 113, pi. 31B, fig. 5.Leptffina recta Hall, ilnd., 1847, p. 113, pi. 31B, fig. 6.Streptorhynchua rectus Miller. Amer. Pal. Foss., 1877, p. 134.Streptorhynchus deflectum Miller, N. A. Geol. Pal., 1889, p. 378.Pla?siomys deflecta Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 197, 222,pi. 5A, figs. 28-34.Plaesiomys recta Hall and Clarke, ibid., 1892, pp. 197, 222.Plssiomys loricula Hall and Clarke, ibid., 1892, pp. 197, 341, pi. 5A, figs. 31-34.Orthis (Dinorthis) deflecta Winchell and Schuchert, Geol. Minnesota, 3, 1893,p. 422, pi. 32, figs. 24-30.Orthis (PlEesiomys) loricula Hall and Clarke, 48th Rep. New York State Mus., 2,for 1895, 1897, p. 339, pi. 4, figs. 7-9; 14th Rep. State Geol. New York for1894, 1897, p. 339, pi. 4, figs. 7-9.Dinorthis deflecta Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 252, fig.303a-d.Black River: Mineral Point, Beloit, Janesville, Wisconsin; Dixon, Illinois;Minneapolis, St. Paul, etc., Minnesota; McGregor, Iowa; central Tennessee;Highbridge, Kentucky.Stone River: Central Tennessee.Dinorthis foutinalis (AMiite).Strophomena fontinalis WTiite, Wheeler's Expl. and Sur^^ West 100th Merid.,4, 1875, p. 54, pi. 3, fig. 4; Prelim. Rep., p. 10, 1874.Dinorthis fontinalis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 215.Middle Ordo\ician: Fish Spring, House Range, Utah.Cotypes.?C-At. No. 17223, U.S.N.M.Dinorthis (Plaesiomys) iphigenia (Billings).Orthis iphigenia Billings, Pal. Fossils, 1, Geol. Sm^v. Canada, 18G5, p. 133, pi. 110(adv. sheets, 1862).Plaesiomys iphigenia Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222.Dinorthis iphigenia Schuchert, Bull. U. S. Geol. Siu-v\, 87, 1897, p. 215.Trenton: Ottawa, Ontario.Dinorthis meedsl (Winchell and Schuchert).Orthis meedsi Winchell and Schuchert, Amer. Geol., 9, April 1, 1892, p. 289.Orthis minnesotensis Sarde.son, Bull. Minnesota Acad. Nat. Sci., 3, April 9, 1892,p. 332, pi. 5, figs. 14-17.Orthis (Dinorthis) meedsi Winchell and Schuchert, Geol. Minnesota, 3, 1893, p.427, pi. 32, figs. 39-42.Dinorthis meedsi Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 253, fig.303e-h.Trenton (Prosser): Cannon Falls, Kenyon, Preston, etc., Minnesota; Decorah andMcGregor, Iowa; Neenah and Oshkosh, Wisconsin.Dinorthis meedsi arctica (Schuchert).Orthis (Dinorthis) meedsi var. arctica Schuchert, Proc. U. S. Nat. Mus., 22, 1900,p. 157, pi. 12, figs. 7, 8.Mohawkian: Head of Frobisher Bay, BaflSn Land.Cotypes.?Cat. No. 28152, U.S.N.M. 444 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Dlnorthis meedsl germana (Winchell and Schuchert).Orthis meedsi var. germana Winchell and Schuchert, Amer. Geol., 9, 1892, p. 290.Orthis (Dinorthis) meedsi var. germana Winchell and Schuchert, Geol. Minnesota,3, 1893, p. 428, pi. 32, figs. 43-45.Dinorthis meedsi germana Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 215.Trenton (Prosser): Cannon Falls, Kenyon, and Fountain, Minnesota.Dinorthis pectinelia (Emmons).Orthis pectinelia Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 394, fig. 2.?Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 366, fig. 2.?Hall, Pal. New York,1, 1847, p. 123, pi. 32, fig. 10.?Emmons, Amer. Geology, 1, pt. 2, 1855, p.193, pi. 9, figs. 10, 11, a, b.?Billings, Can. Nat. Geol., 1, 1857, p. 205, fig. 5.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 818, fig. 602.?Emmons, ManualGeology, 1860, p. 99, fig. 88.?Billings, Geol. Canada, 1863, p. 165, fig. 147.?Hitchcock, Geol. Vermont, 1, 1862, p. 294, fig. 202.?Chapman, CanadianJour., n. s., 7, 1862, p. Ill, fig. 92; ibid., 8, 1863, p. 199, fig. 184; Expos. Min.,Geol. Canada, 1864, p. 115, fig. 91; p. 171, fig. 183.?Chamberlin, Geol. Wis-consin, 1, 1883, p. 155, fig.?Hall, 2d Ann. Rep. New York State Geol., 1883,pi. 34, figs. 39, 40.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.527, figs.Orthis pectinelia var. semiovalis Hall, Pal. New York, 1, 1847, p. 124, pi. 32, fig.11.?Miller, N. A. Geol. Pal., 1889, p. 359.Dinorthis pectinelia Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 195, 222,228, pi. 5, figs. 27-33.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 154,pi. 9, figs. 29, 30.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 253,fig. 303i-l.?Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 24, fig. 2.Orthis (Dinorthis) pectinelia Winchell and Schuchert, Minnesota Geol. Survey,3, 1893, p. 424, pi. 32, figs. 31-34.?WTiiteaves, Pal. Fossils, 3, pt. 3, 1897,p. 175.Orthis charlotte Winchell, 8th Rep. Geol. Nat. Hist. Surv. Minnesota, 1880, p. 67.Upper Black River and Early Trenton: Middleville, Trenton Falls, etc.. NewYork; Pennsylvania; Mercer County, Kentucky; Ontario; Decorah, Iowa;St. Paul, Minneapolis, and Cannon Falls, Minnesota; Lake Winnipeg, Canada;Tennessee; Virginia.Dinorthis pectinelia sweeneyi (N. H. Winchell).Orthis sweeneyi N. H. Winchell, 9th Rep. Geol. Nat. Hist. Surv. Minnesota, 1881,p. 117.Dinorthis sweeneyi Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 196, 222,228, pi. 5, figs. 34-36.Orthis (Dinorthis) pectinelia var. sweeneyi Winchell and Schuchert, Geol,Minnesota, 3, 1893, p. 426, pi. 32, figs. 35-38.Black River (Decorah): St. Paul, Cannon Falls, etc., Minnesota; Decorah andMcGregor, Iowa.Dinorthis (Plseslomys) platys (Billings).Orthis platys Billings, Canadian Nat. Geol., 4, 1859, p. 438, fig. 15; Geol. Canada,1863, p. 129, fig. 54.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 218.?Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1893, p. 424.?Lesley,Geol. Sur\\ Pennsylvania, Rep. P 4, 1889, p. 530, figs.Dinorthis platys Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 216.Plaesiomys platys Raymond, Ann. Carnegie Mus., 7, 1911, p. 238, pi. 35, figs. 13-14.Chazyan: Montreal, Quebec; Crown Point, Valcour Island, and Chazy, NewYork (Crown Point); East Tennessee (Lenoir). BIBLIOGRAPHIC LIST OF GENERA AND tiPECIES. 445DiNORTHis roRCATA Schuchert (part). See Dinorthie (PhesiomyH) porcata aiitico-etiensis.DInorthls (Plseslomys) porcata antlcostlensis (Shaler).Orthis porcata Billings (not McCoy), Pal. Fossili^, 1, Geol. Surv. Canada, 1865, p.1.35, fig. Ill (adv. sheets); Geol. Canada, 1863, p. 312, lig. 319.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1889, p. 531, figs.Plsesiomys porcata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p{). 197, 22, pi.5A, figs. 20, 21.Dinorthis porcata Schuchert (part). Bull. U. S. Geol. Surv., 87, 1897, p. 216.Orthis anticostiensis Shaler, Fossil Brach. of the Ohio Valley, 1SS7, p. 19, pi. 6.Richmond: English Head, etc., Anticosti (Ellis Bay); Stony Mountain, Mani-toba Stony Mountain).Dinorthis proavita (Winchell and Schuchert).Orthis proavita Winchell and Schuchert, Amer. Geol., 9, April 1, 1892, p. 290.Orthis petrae Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, April 9, 1892, p. 332,pi. 5, figs. 18-21.Orthis (Dinorthis) proavita Winchell and Schuchert, Geol. Minnesota, 3, 1893, p.431, pi. 32, figs. 51-57.?WTiiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2,1895, p. 120.??^^^liteaves, Pal. Foss, 3, pt. 3, 1897, p. 176.Dinorthis proavita Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 216.Richmond: Spring Valley, Minnesota; Wilmington, Illinois; Lake Winnipeg,Manitoba; Texas; etc.Dinorthis (Plaesiomys) retrorsa (Salter).Orthis retrorsa Salter, Mem. Geol. Surv. Great Britain, 2, 1858, p. 373, pi. 27, fio^s.3, 4.?Billings, Pal. Foss., 1, Geol. Sirrv. Canada, 1865, p. 136, fig. 112 (not113=D. carleyi) (adv. sheets, 1862).Plsesiomys retrorsa Ruedemann, Bull. New York State Mus., 162, 1912, p. 93, pi. 4,figs. 9-12.Middle Ordo\ician: Wales (Bala); Snake Hill, Saratoga County, New York, andOttawa, Ontario (Trenton).Dinorthis retrorsa Cunaings. See Dinorthis carleyi.Dinorthis scovillei Foerste. See Plectorthis (Austinella) scovillei.Dinorthis (Vaicourea) strophoinenoides (Raymond).Pla;siomys strophomenoides Raymond, Amer. Jour. Sci., 4th ser., 20, p. 370.Vaicourea strophomenoides Raymond, Ann. Carnegie Mus., 7, 1911, p. 240, pi. 35,figs. 15-19; pi. 36, fig. 1, text fig. 12.Chazyan: Valcour Island and Plattsburg, New York (Crown Points- East Ten-nessee (Lenoir).Dinorthis (Plaesiomys) subquadrata (Hall).Orthis subquadrata Hall, Pal. New York, 1, 1847, p. 126, pi. 32A, fig. 1; Geol.Wisconsin, 1, 1862, p. 54, figs. 1, 2.?Meek, Pal. Ohio, 1, 1873, p. 94, pi. 9,fig. 2.?Miller, Cincinnati Quart. Jom-. Sci., 2, 1875, p. 38.?V^Tiite, 2d Ann.Rep. Indiana Bureau Stat. Geol., 1880, p. 484, pi. 1, figs. 3-5; 10th Rep.State Geol. Indiana, 1881, p. 116, pi. 1, figs. 3-5.?Shaler, Foss. Brach. of theOhio Valley, 1876, p. 22, pi. 7.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 535, figs.?Keyes, Geol. Surv. Missouri, 5, 1895, p. 60.?Orthis subquadrata Billings, Geol. Canada, 1863, p. 165, fig. 146.Platystrophia subquadrata Hall, 36th Rep. New York State Mus. Nat. Hist., 1884,p. 75, pi. 3, fig. 4. 446 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Binorthis (Plaesioinys) subquadrata?Continued.Plsesiomys subquadrata Hall and (Jlarke, Pal. New York, 8, pt. 1, 1892, pp. 194,196, 222, pi. 5A, figs. 17-19.OrthiB (Dinorthis) subquadrata Winchell and Schii chert, Geol. Minnesota, 3,1893, p. 428, pi. 32, figs. 46-50.?Wbiteaves, Pal. Foss., 3, pt. 3, 1897, p. 176.Dinorthis subquadrata Hayes and Ulrich, U. S. Geol. Surv., folio 95, 1903, illus.sheet, figs. 7, 8.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 254, fig.303m-o.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1907, p.904, pi. 34, figs. 1-lb.Richmond: Ohio Valley; Spring Valley, Minnesota; Wilmington, IlUnois; WaiTenand Jefferson Counties, Missouri; Lattners, Iowa; Iron Ridge, Wisconsin;Lake Winnipeg, Canada; Anticosti; Texas; etc.Plesiotypes.?Gat. No. 35454, U.S.N.M. (Hayes and Ulrich).Dinorthis sweeneyi Hall and Clarke. See Dinorthis pectinella sweeneyi.Dinorthis (Plaesioinys) ulriclii Foerste.Dinorthis ulrichi Foerste, Bull. Sci. I.ab. Denison Univ., 14, 1909, p. 320, pi. 7,fig. 7a-c.Trenton (Flanagan): Near Becknerville, Clark County, Flanagan and Paris,Kentucky.DiONE Barrande. See Dionide Barrande.DIONIDE Barrande. Genotype: Dione formosa Barrande.Dione Barrande, Note Prelim. Sil. Syst. Boheme, 1846, p. 32.Dionide Barrande, Neues Jahrb. f. Min., pt. 4, 1847, p. 391, footnote; Syst. Sil. duCentre Boheme, 1, 1852, p. 640.?Pictet, Traite de Pal., 2d ed., 2, 1854, p.510.?Barrande, Syst. Sil. du Centre Boheme, 1, Suppi., 1872, p. 50.?Nich-olson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 289.?Zittel,Handb. Pal., 2, 1885, p. 594.?Miller, N. A. Geol. Pal., 1889, p. 544.?Koken,Die Leitfossilien, Leipzig, 1896, p. 15, text fig. 9, fig. 2.?Beecher, Amer.Join-. Sci., 4th ser., 3, 1897, pp. 184, 186.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, p. 32.?Pictet, Traite de Pal., 2d ed., 2, 1854,p. 510.?Raymond, Zittel-Eastman Textb. Pal, 1913, p. 711.Polytomiuus Hawle and Corda, Abh. d. k. bohmischen Gesell. d. Wiss., 5 (ex-tract), 1847, p. 37, pi. 3, fig. 16.?AngeUn, Pal. Scandinavica, 3d ed., Holmiae,1878, p. 12.Dionide(?) perplexa Billings.Dionide? perplexa Billings, Cat. Sil. Foss. Anticosti, 1866, p. 67.Anticostian (Jupiter River): The Jumpers, Anticosti.DIORTCHOPORA Davis. Genotype: D. tenuis Davis.Diorychopora Davis, Kentucky, Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, expl. of pi. 74.Diorychopora tenuis Davis.Diorychopora tenuis Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, pi. 74, fig. 6.Niagaran (Louisville): Near Louisville, Kentucky.DIPHTPHTLLUM Lonsdale. Genotype: D. concinnum Lonsdale.Diphyphyllum Lonsdale, Murchison's Geol. Russia in Europe, 1, 1845, p. 622. ? McCoy, British Pal. Rocks Foss., 1854, p. 87.?Billings, Canadian Jour.,n. 8., 4, 1859, p. 133.?Dybowski, Archiv. f. Naturf. Liv-, Ehst. und. Kurl.,5, 1874, p. 337.?Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 31.? BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 447DIPHTPHYLLUM?Continued.Tloniinger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 120.?Lindstrom, Ann.Mag. Nat. Hist., 4th eer., 18, 1876, p. 15.?Thomson and Nicholson, Ann. Mag.Nat. Hist., scr. 4, 17, 1876, p. 123.?Zittel, Handb. Pal., 1, 1879, p. 231.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 357.?Freeh, Pal. Abhaudl.,Dames and Kayser, 3, Heft 3, 1886, p. 94.?Miller, N. A. Geol. Pal., 1889, p.186.?Sherzer, Amer. Geol., 7, 1891, pp. 290-295.?Lambe, Cont. CanadianPal., Geol. Siu-v. Canada, 4, pt. 2, 1901, p. 157.?Clarke and Ptuedemann,Mem. New York State Mus., 5, 1903, p. 25, 26.Diplophyllum Hall, Amer. Jour. Sci. and Arts., 2d ser., 11, 1851, p. 399; Pal. NewYork, 2, 1852, p. 115; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80.?Grabau, Bull. New York State Mus., 45, 1901, p. 139; Bull. Buffalo Soc. Nat.Sci., 7, 1901, p. 139.?Clarke and Ruedemann, Mem. New York State Mus.,5, 1903, pp. 25, 26.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 73.(Genotype: D. csespitosum Hall.)Dlphyphyllum billingsi Greene.Diphyphyllum billingsi Greene, Cont. Indiana Pal., 11, 1903, p. 98, pi. 31,figs. 2, 3.Niagaran (Louisville): Louisville, Kentucky.Diphyphyllum csespitosum (Hall).Diplophyllum cajspitosum Hall, Pal. New York, 2, 1852, p. 116, pi. 33, figs, la-r,2.?Grabau, Bull. New York State Mus., 45, 1901, pp. 139-140, fig. 33; Bull.Buffalo Soc. Nat. Hist., 7, 1901, p. 139, fig. 33.?Clarke and Ruedemann, Mem.New York State Mus., 5, 1903, p. 25.^Grabau and Shimer, N. A. IndexFossils, 1, 1906, p. 74, fig. 117.Diphyphyllum csespitosum Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 80 (gen. ref.).?Lambe, Ottawa Nat., 12, 1899, p. 240.?Foerste, Proc.Boston Soc. Nat. Hist., 24, 1890, p. 343.?Lambe, Contr. Can. Pal., Geol.Surv. Canada, 4, pt. 2, 1901, p. 158, pi. 13, figs. 3, 3a, 3b.Cyathophyllum pelagicum Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 108(adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 34(loc. ref.).Silurian: Lockport, etc.. New York; Ontario (Lockport); Wisconsin (Racine andGuelph); Island of Anticosti (Becsie River, Gun River); Ontario (Cataract).Diphyphyllum coralliferum (Hall).Diplophyllum coralliferum Hall, Pal. New York, 2, 1852, p. 322, pi. 72, figs. la-c.Diphyphyllum coralliferum Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 80 (gen. ref.).?Schuchert, Amer. Geol., 31, 1903, p. 163. (loc. occ.)Cayugan (Cobleskill) : Schoharie, etc., New York.Diphyphyllum huronlcum Rominger.Diphyphyllum Huronicum Rominger, Geol. Swrv. Michigan, 3, pt. 2, 1876, p. 121,pi. 45, fig. 1.Eridophyllum huronicum Davis, Kentucky, Fossil Corals, Geol. Surv. Kentucky,pt. 2, 1885, pi. 109, fig. 2; pi. 111.Niagaran: Point Detour, Michigan; Drummond Island; Louisville, Kentucky.Diphyphyllum Intcgumentum (Barrett).Diphyphyllum integumentum Barrett, Ann. New York Acad. Sci., 1, 1878,p. 123.?Weller, Geol. Suiv. New Jersey, Rep. Pal., 3, 1903, p. 218, pi. 17,fig. 11. 448 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Diphyphyllum integumentum?Continued.Diplophyllum integumentum Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909,p. 106, pi. 10, fig. 1; pi. 15, fig. 9-10; pi. 16, figs. 15 and 17.Helderbergian (Decker Ferry): Two miles Boutli of Tristates, New York.Upper Monroan (Anderdon and Amherstbm'g) ; Detroit River area.Diphyphyllum? multicaule (Hall).Syringopora? multicaulis Hall, Pal. New York, 2, 1852, p. 119, pi. 33, fig. 3a-g.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 493, footnote.Diphypliyllum multicaule Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 122,pi. 45, figs. 3, 4.?Sherzer, Amer. Geol., 6, 1890, p. 61.?Lambe, Ottawa Nat.,12, 1899, p. 241; Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 159,pi. 13, figs. 4, 4a-c.Synaptophyllum multicaule Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909,p. 105, pi., 12, fig. 6.Eridopliyllum vennori Billings, Canadian Nat. Geol., n. s., 2, 1865, p. 430.Diphyphyllum vennori Miller, N. A. Geol. Pal., 1889, p. 186 (gen. ref.).Silurian: Lockport, etc.. New York (Lockport); Michigan; Manitoulin Island,Lake Huron (Cataract).Upper Monroan (Amherstburg) : Detroit River, opposite Amherstburg, Ontario.Diphyphyllum proliferum Foerste.Diphy]:)hyllum proliferum Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p.102, pi. 1, figs. 18A-d.Niagaran (Brownsport) : Near Linden; Brownsport Furnace and Savannah,Tennessee.Diphyphyllum rugosum Rominger. See Eridophyllum rugosum.Diphyphyllum stokesi AVhiteaves. See Columnaria (Palajopliyllum) stokesi.Diphyphyllum vennori Miller. See Diphyphyllum multicaule.DiPLASPis Matthew. See Cyathaspie Lankester.DiPLEURA Green. See Homalonotus Koenig.DiPLocERAS Conrad. See Endoceras Hall.DIPLOCLEMA Ulrich. Genotype: D. trentonense Ulrich.Diploclema Ulrich, Geol. Surv. Illinois, 8, 1890, p. 368; (Ulrich, in press). Miller,N. A. Geol. Pal., 1889, p. 300.?Ulrich, Zittel's Textb. Pal. (Engl, ed.), 1896,p. 262.?Pocta, Syst. Sil. du Centre Boheme, 8, pt. 1, 1894, p. 17.?Nicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 22.?Grabau, Bull. NewYork State Mus., 45, 1901, p. 162; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p.162.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 17; Zittel-Eastman Textb.Pal., 1913, p. 321.Diploclema sparsum (Hall).Trematopora spar&a Hall, Pal. New York, 2, 1852, p, 155, pi. 40A, figs. 12a-d. ? Diploclema sparsum Ulrich, Geol. Surv. IlUnois, 8, 1890, p. 369, pi. 53, fig.10.?Grabau, Bull. New York State Mus., 45, 1901, p. 162, fig. 57; Bull.Buffalo Soc. Nat. Sci., 7, 1901, p. 162, fig. 57.?Bassler, Bull. U. S. Geol.Surv., 292, 1906, p. 17, pi. 5, figs. 6, 7; pi. 23, figs. 4-6.Clinton (Rochester): Lockport, etc., New York; Grimsby and Hamilton, Ontario.Anticostian (Gun River-Jupiter River): Anticoeti.Plesiotype.?Csit No. 44071, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 449DIpIoclema sparsum argutum Bassler.Diploclema sparsum var. argutum Bassler, Bull. tJ. S. Geol. Surv., 292, 1906,pp. 17, 18, pi. 5, figs. 8, 9.Clinton (Rochester): Lockport, New York,Eolotype?Cat. No. 35557, U.S.N.M.Diploclema trentonense Ulrich.Diploclema trentonense Ulrich, Geol. Surv. Illinois, 8, 1890, p. 369, pi. 53,figs. 9-9c.Trenton: Trenton Falls, New York.Cotypes.?Cat. No. 43251, U.S.N.M.DiPLOGRAPSus AMPLEXiCAULE Emmons. See Diplograptus (Glyptograptus) amplexi-caulis.DrpLOQRAPSUS ANTENNARius Nicholson. See Cryptograptus antennarius.DiPLOGRAPSUs ciLiATUs Emmona. See Glossograptus arthracanthus.Diplograpsus foUosus Emmons. Undeterminable.Diplograpsus foLiosua Emmons, Amer. Geology, 1, pt. 2, 1855, p. 106, pi. 1, fig. 13;Manual Geology, 18G0, p. 87, fig. 68.Mohawkian: Augusta County, Vii-girda.Diplograpsus Hudsonictjs Nicholson. See Diplograptus hudsonicuB.Diplograpsus laciniata Emmons. See Diplograptus foliaceus.Diplograpsus mucronatus McCoy. See Lasiograptus mucronatus.Diplograpsus obliquis Emmons. See Diplograptus foliaceus.Diplograpsus stenosus Gurley. Not recognized.Diplograpsus stenosus Gurley, Jour. Geol., 4, 1896, p. 78.Trenton (Magog): Magog, Quebec.Diplograpsus whitfieldi Nicholson. See Glossograptus whitfieldi.DIPLOGRAPTUS McCoy. Genotype: Graptolithus foliaceus Murchison.Diplograpsus McCoy, Ann. Mag. Nat. Hist., 6, 1850, p. 270; British Pal. EocksFoss., 1854, p. 3.?Geinitz, Amer. Jour. Sci. Arta, 2d ser.,14, 1852, p. 128; Bull.Soc. Geol. France, 2d ser., 9, 1852, p. 187; Zeits. d. d. geol. Gesell., 3, 1852,p. 389.?Richter, Zeits. d. d. geol. Gesell., 5, 1853, p. 455.?Emmons, Amer.Geology, 1, pt. 2, 1855, p. 104.?Chapman, Canadian Jour., n. s., 1, 1856, p.389; 6, 1861, p. 506; E.xpos. Min. Geol. Canada, 1864, p. 100.?Nicholson,Quart. Jour. Geol. Soc. London, 24, 1868, pp. 9, 137; Mon. British Grapt., 1872,p. 115.Diplograptus Dana, Amer. Jour. Sci. Arts, 2d eer., 14, 1852, p. 128.?Hall,Geol. Surv. Canada, dec. 2, 1865, p. 109; 20th Rep. New York State Cab. Nat.Hist., p. 217; rev. ed., 1868 (1870), p. 251.?Zittel, Handb. Pal., 1, 1879, p.300.?Dairon, Trans. Geol. Soc. Glasgow, 7, 1883, p. 177.?Tullberg, SverigesGeol. Unders., ser. C, no. 55, 1883, pp. 13, 14.?Spencer, Trans. Acad. Sci.St. Louis, 4, 1884, p. 561.?Miller, N. A. Geol. Pal., 1889, p. 186.?James, Jour.Cincinnati Soc. Nat. Hist., 14, pt. 2, p. 157.?Wiman, Jour. Geol., 2, 1894,p. 267.?Ruedemann, 48th Rep. New York State Mus., 2, 1897, p. 244; KthRep. State Geol. New York for 1894, 1897, p. 244.?Wiman, Bull. Geol. Inst.Univ. Upsala, 2, pt. 2, 1896, p. 264.?Koken, Die Leitfossilien, Leipzig, 1S96,p. 329.?Wiman, Nat. Sci., 9, 1896, p. 188.?Roemer and Freeh, Leth.geog.,84243??Bull. 92?15 29 450 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.DIPLOGRAPTUS?Continued.1 Theil, Leth. Pal., 1, 3 Lief., 1897, p. 624.?Walther, Zeits. d. d. geol.Gesell., 49, 1897, p. 250.?Ruedemann, Amer. Nat., 32, 1898, p. 3: Zittel-Eastman Textb. Pal., 1, 1900, p. 119.?Ellea and Wood, Mon. British Grapt.,Pal. Soc, 1903, p. xxxii.?Ruedemann, Mem. New York State Mus., 7, 1904, p.718, 719.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 33.?Ruede-mann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 339-341; Zittel-East-man Textb. Pal., 2d ed., 1913, p. 130.Glyptograptus Zittel, Handb. Pal., 1, 1879, p. 300.?Wiman, Bull. Geol. Inst.Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 264.?Roemer and Freeh, Leth. geog.,1 Theil, Leth. Pal., 1, 3 Lief., 1897, pp. 625, 632.Diplograptus acutus (Elles and Wood).Diplograptus vulgatus var. acutus, Elles and Wood, Mon. British Grapt., pt. 6,1907, p. 242, pi. 30, figs. 3a-c.Ordovician: South Scotland (Glenkiln); Arkansas (Stringtown).Diplograptus amplexicaule Walcott (part). See Diplograptus peosta.DiPLOGEAPTUs amplexicaule WTiitfield. See Diplograptus amplexicaulis pertenuis.Diplograptus (Glyptograptus) amplexicaulis (Hall).Graptolithus amplexicaule Hall, Pal. New York, 1, 1847, pp. 79, 316, pi. 26, figs.11a, b.?Hitchcock, Geol. Vermont, 1, 1861, p. 291, text fig.; New YorkState Cab. Nat. Hist., 20th Ann. Rep., 1868, pi. 3, figs. 6, 7, rev. ed., 1870,p. 223.Diplograpsus amplexicaule Emmons, Amer. Geology, 1, pt. 2, 1855, p. 236, pi. 7,figs. 11a, b.Diplograptus amplexicaulis Lapworth, Proc. and Trans. Roy. Soc. Can., 1886,4,p. 184.?White Trans. New York Acad. Sci., 15, 1895, p. 93.?Ruedemann,Bull. New York State Mus., 39, 1901, p. 497ff.Diplograptus foliaceus mut. amplexicaule Gurley, Jour. Geol., 4, 1896, p. 298.Diplograptus (Glyptograptus) amplexicaulis Freeh, Leth. geog., 1 Theil, Leth.Pal., 1, 3 Lief., 1897, p. 632 (gen. ref.).?Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, pp. 361-305, pi. 25, figs. 10-13, text figs. 302-307.Trenton: Trenton Falls, Middleville, and Washington County, New York.Diplograptus amplexicaulis pertenuis Ruedemann.Diplograptus amplexicaule Whitfield, U. S. Geol. Sur. West 100th Merid.,Wheeler's Rep., 4, Pal., 1877, p. 19.?Ruedemann, Bull. New York StateMus., 8, 1901, p. 533, footnote.Diplograptus amplexicaulis var. pertenuis Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, pp. 365, 366, pi. 25, figs. 14-16, text figs. 308-310.Trenton (Snake Hill): Lansingburg and Troy, New York.Diplograptus (Glyptograptus) angustlfolius (HallVGraptolithus angustifolius Hall, Pal. New York, 3, 1859, p. 515, figs. 1, 2; New YorkState Cab. Nat. Hist., 13th Ann. Rep., 1860, p. 59, figs. 1, 2.Diplograptus angustifolius Nicholson, Geol. Soc. Lond. Quar. Jour., 1868, p.525, pi. 19, figs. 8, 9.?Lapworth, Cat. West. Scott. Foss., 1876, pi. 2, fig. 35;Belfast Nat. Field Club., Rep. and Proc, App., 1, pt. 4, 1877, p. 132, pi. 6,fig. 11; Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 21.?Walcott, Alb. Inst.Trans., 10, 1881 (adv. sheets, 1879, p. 34).?Lapworth, Geol. Sur. Can. Rep.,2d ser., 2, 1886, p. 22D; Sci., 9, 1887, p. 320.-Ami, Geol. Sur. Can. Rep. '2d ser.,3, pt. 2, 1889, p. 116K.?Walcott, Bull. Geol. Soc. Amer. 1, 1890, p. 339.?Barroia,Ann. Soc. Geol. du Nord,20,1892, p. 145.?Gurley, Jour. Geol., 4, 1896, p. BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 451DIplograptus (Glyptograptus) angustifollus?Continued.298.?Kuedemann, Bull. New York State Mus. 42, 1901, p. 541ff.?Weller,Geol. Sur. New Jersey, Pal., 3, 1903, p. 212, pi. 16, figs. 8, 9.?Dale, Bull.U. S. Geol. Sur., 242, 1904, p. 33.Diplograptus (Glyptograptus) angustifollus Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, pp. 3GG-369, pi. 25, figs. 19, 20, text figs. 311-314.Diplograptus (Graptolithus) angustifollus Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 206, figs.Chazyan (Normanskill): Glenmont, Stockport, Lansingburg, etc., New York;Kicking Horse Pass, Canada; Silver Peak Quadrangle, Nevada; Arkansas;Quebec; New Jersey; Great Britain.Diplograptus barbatulus Salter. See Diplograptus foliaceus.Diplograptus basilicus (Elles and Wood).OrthogTaptus basilicus Lapworth, Geol. Mag., 10, 1873, p. 134 (nom. nud.).Diplograptus vulgatus var. basilicus Elles and Wood, Mon. British Grapt., pt. 6,1907, p. 243, pi. 30, figs. 2a-d.Ordovician: South Scotland (Lower Hartfell); Arkansas (Normanskill-String-town).Diplograptus bicornis Geinitz. See Climacograptus bicomia.Diplograptus bimucronatus Nicholson. See Lasiograptua bimucronatua.Diplograptus ciliatus Walcott. See Glossograptus ciliatus.Diplograptus crassitestus Ruedemann.Diplograptus crassitestus Ruedemann, Mem. New York State Mus., 11, pt. 2,1908, pp. 354, 355, pi. 25, fig. 6, text figs. 299-300.Richmond (Sylvan): Arbuckle Mountains, Oklahoma.Cotypes.?Cat. No. 54266, U.S.N.M.Diplograptus dentatus Lapworth. See Diplogi'aptua (Glyptograptus) euglyphus.Diplograptus dentatus (Brongniart).Fucoides dentatus Brongniart, Hist. Veget. Foss., 1, 1828, p. 70, pi. 6, figs. 9-12.Graptolithus pristiniformis Hall, Geol. Sur. Can. Rep., 1857, p. 133; CanadianNat. Geol, 3, 1858, p. 167.Diplograptus pristiniformis Hall, Geol. Sur. Can., dec. 2, 1865, p. llOff, pi. 13,figs. 15-17.?Nicholson, Quar. Jour. Geol. Soc, 24, 1868, p. 140, pi. 5, figs.14, 15.Diplograptus dentatus Hopkinson and Lapworth, Quart. Jour. Geol. Soc. London,31. 1875, p. 656, pi. 34, figs. 5a-k.?Emerson, Narrative Hall's 2d Arctic Exped.U. S. Navy Dept., 1879, p. 576.?Ami, Geol. Sur. Can. Rep., 2d ser., 3, pt.2, 1889, p. 117k.?Gurley, Jour. Geol., 4, 1896, p. 298.?Elles, Quar. Jour.Geol. Soc, 54, 1898, p. 517.?Ruedemann, New York State Pal., Ann. Rep.,1902, p. 570; Mem. New York State Mus., 7, pt. 1, 1904, pp. 719-721, pi. 17,figs. 10-13, text fig. 100.?Grabau and Shimer, N. A. Index Fossils, 1,1906,p. 34.Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Deepldll,Rensselaer and Columbia Counties, New York (Deepkill, D. dentatus zone);Arkansas; England (Skiddaw); Wales (Arenig); Sweden.Diplograptus dissimilaris Emmons. See Diplograptus foliaceus.Diplograptus etheridgii Hopkinson. See Cryptograptus tricomio. 452 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.DIplograptus (Glyptograptus) euglyphus (Lapworth).Diplograptus dentatus Lapwortii, Ann. Mag. Nat. Hist., 5th eer., 4, 1870, p. 424;Belfast, Nat. Field Club Rep. and Proc, 1, pt. 4, App., 1877, p. 132, pi. 6,fig. 13; Geol. Soc. Quar. Jour., 34, 1878.Diplograptus (Glyptograptus) euglyphus Lapworth, Ann. Mag. Nat. Hist., 5thser., 5, 1880, p. 166, pi. 4, figs. 14a-e.?Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, pp. 369-370, pi. 25, figs. 22, 23, text figs. 315-316.?Diplogi-aptus euglyphus Lapworth, Ann. Mag. Nat. Hist., 5th ser., 6, 1880, p. 21;Proc. and Ti-ana. Roy. Soc. Can., 4, 1887, p. 177; Canadian Rec. Sci., 3, 1888,p. 141 (loc. occ); Can. Geol. Surv. Rep., 1887-88, 2d, ser., 3, pt. 1, p. 95B.Middle Ordovician: Great Britain (Glenkiln); Dease River, British Columbia;Griffin Cove, etc., Quebec; Glenmont, Speigletown, etc.. New York (Nor-manskill); Silver Peak Quadrangle, Nevada; Arkansas.Plesiotype.?Cat. No. 54266, U.S.N.M.Diplograptus euglyphus pygmseus Ruedemann.Diplograptus euglyphus var. pygmseus Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, p. 371, pi. 25, figs. 317, 318.Trenton (Canajoharie): Near Lansingburg, New York.Diplograptus foUaceus (Murchison).?Fucoides dentatus Conrad, New York State Surv., 2d Ann. Rep., 1838, p. 114. ? Vanuxem, ibid., p. 283.Graptolithus foliaceus Murchison, Sil. Syst., 1839, p. 694, pi. 26, fig. 3.?Portlock,Geol. Rep., 1843, p. 320, pi. 19, fig. 9.Diprion foUaceus Harkness, Geol. Soc. London Quart. Jour., 7, 1850, pi. 1, fig. 13b.Diplograptus foliaceus Geinitz, Die Grapt., 1852, pi. 1, figs. 29, 30.?Lapworth,Cat. West. Scotland Foss., 1876, p. 6, pi. 2, fig. 29; Belfast Nat. Feld Club Rep.and Proc, 1, pt. 4, App., 1877, p. 133, pi. 6, fig. 18.?Linnarsson, Sver. Geol.Und., Ser. C, 31, 1879, p. 16ff.?Tullberg, Sver. Geol. Und., Ser. C, 41,1880, p. 20; ibid., 50, 1882, p. 20.?Lapworth, Proc. and Trans. Roy. Soc.Canada, 4, 1887, pp. 177ff.?Ami, Can. Geol. Surv. Rep., 2d eer., 3,pt. 2, 1888, p. 117K.?Geinitz, Mitth. k. Min. geol. praeh. Mus. Dres-den, 9, 1890, p. 37, pi. A.?Gurley, Geol. Surv. Arkansas, Ann. Rep., 1892,3, p. 404.?Barrois, Ann. Soc. Geol. du Nord, 20, 1892, p. 145.?Gurley, Jour.Geol., 4, 1896, p. 298.-Hall, Roy. Soc. Proc, 9, 1896, p. 185; ibid., 10,1897, p. 14; Geol. Mag., n. a., dec. 4, 6, 18.99, p. 445.?Ruedemann, Bull.New State Mus., 42, 1901, p. 497ff.?Clark, Geol. Mag., 4th ser., 9, 1902, p.498.?T. S. Hall, Geol. Surv. Victoria Rec, 1, pt. 1, 1902, p. 34f ; Geol. Surv.New South Wales Rec, 7, pt. 2, 1902, p. 4, pi. 12, fig. 7.?Weller, Geol. Surv.New Jersey Pal., 3, 1902, p. 53.?Ami, Geol. Surv. Canada, Summ. Rep.,1905, p. 12.?Grabau and Shimer, N. A. Index Fossils 1, 1906, p. 33.?Ruede-mann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 341-346, pi. 24, figs.1-8, pi. 25, figs. 1, 2, text figs. 279-282, pi. 25, figs. 7-9.Fucoides simplex Emmons, Tac Syet., 1844, p. 27, pi. 5, fig. 1; Agric. NewYork, 1, 1847, pi. 17, fig. 1.Graptolithus pristis (part) Hall, Pal. New York, 1, 1847, p. 265, pi. 72, figs. 1-ac;Pal. New York, 3, 1859, p. 516, fig. 2; New York State Cab. Nat. Hist., 13thAnn. Rep., 1860, p. 60, fig. 2; Geol. Siu-v. Canada, Can. Org. Rem., dec. 2,1865, p. 36, fig. 30; New York State Cab. Nat. Hist., 20th Ann. Rep., 1868,pp. 204, 205, fig. 2.Graptolithus (Diplograptus) pristis White, Rep. Wheeler Surv., 4, 1875, p. 65,pl. 4, fig. 2. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 453DIplograptus foliaceus?Continued.Diplograptus pristia Marcou, Geol. Map United States, 1853, p. 24, pi. 1, fig. 10. ? Hopldnson, Micro. Club Jour., 1, 1869, pi. 8, fig. 11a.?Can-utliers, Geol.Mag., 5, 1868, p. 130, pi. 5, figs. 13a-d.?Nicholson, Mon. British Grapt.,1872, fig. 22, p. 54; p. 58, fig. 26; p. 69, fig. 39A; p. 116, fig. 58.?Hopldnsonand Lapworth, Geol. Soc. London Quart. Jour., 31, 1875, pp. 656-657, pi. 35,figs. 7a-g.?Walcott, Alb. Inst. Trans., 10, 1883 (adv. sheets, 1879, p. 34),p. 4 (loc. occ.).?Whitfield, Amer. Jour. Sci., 3d ser., 1883, 26, p. 380.?Tullberg, Zeittschr. d. deutsch. geol. Gesell., 35, 1883, p. 241.?Walcott,Bull. Geol. Soc. Amer., 1, 1890, p. 339.?Ruedemann (part), New YorkState Geol. Rep., 1897, p. 219, pi. 4.?Grabau and Sliimer, N. A. IndexFossils, 1, 1906, p. 33, fig. 54.Graptolithus folium et G. pristis Salter, Geol. Soc. London Quart. Jour., 5, 1849,p. 15, pi. 1, figs. 5, 6.Diplograptus rugosus Emmons, Amer. Geol., 1, pt. 2, 1856, p. 105, pi. 1, fig.26.?Lapworth, Ann. Mag. Nat. Hist., 5th ser., 5, 1880, p. 168.Diplograptus dissimilaris Emmons, Amer. Geol., 1, pt. 2, 1855, p. 105, pi. 1,fig. 5.Dicranograptus dissimilaris Gurley, Jour. Geol., 4, 1896, p. 95 (gen. ref.).Diplogi-aptus secaUnus Hall, Pal. New York, 1, 1847, p. 267, pi. 72, figs. 2a-c.Diplograptus barbatulus Salter, Mem. Geol. Surv. Great Britain, 3, 1866, pi. 2a,figs. le-d.Graptolithus (Diplograptus) hypniformis Wlute, Geogr. and Geol. Expl. West100th Merid., Prel. Rep., 1874, p. 12; ibid., 4, War Dep., 1877, p. 63, pi. 4,fig. 4a, b.Diplograpsus obliquis Emmons, Amer. Geol., 1, pt. 2, 1855, p. 106, pi. 1, fig. 22.Diplograpsus laciniata Emmons, Amer. Geol., 1, pt. 2, 1855, p. 236, pi. 1, fig. 24.Middle Ordovician: Great Britain (Glenkiln and Hartfeil); Scandinavia, Aus-tralia, Nevada, Oklahoma, Arkansas, Canada, New York, etc. (Normans-kill, etc.).Plesiotype.?Gsit. No. 8556, U.S.N.M. (Holotype of G. hypniformis).Diplograptus foli.\ceus Ruedemann (part). See Glossograptus (Orthograptus)quadrimucronatus.Diplograptus foliaceus acutus Lapworth.Graptolithus pristis Hall (?Hisinger), Pal. New York, 1, 1847, pi. 72, fig. 10, Ip.Diplogi'aptus foliaceus var. acutus (Lapworth MS.) Ruedemann, Mem. NewYork State Mus., 11, pt. 2, 1908, pp. 349-351, pi. 25, figs. 1, 2, text figs. 288-293.Middle Ordovician: Stockport, etc.. New York (Normanskill); Canada; Scotland(Glenkiln); Shropshire (Upper Llandeilo).Diplograptus foliaceus alabamensis Ruedemann.Diplograptus foliaceus var. alabamensis Ruedemann, Mem. New York StateMus., 1], pt. 2, 1908, p. .352, pi. 25, fi.g. 3.Chazyan (Athens): Pratta Ferry, Bibb County, Alabama.Diplograptus foliaceus mut. amplexicaule Gurley. See Diplograptus (Glypto-graptus) amplexicaulis.Diplograptus foliaceus Inclsus Lapworth.Graptolithus pristis Hall (not Hisingcr), Pal. New York, 1, 1847, pi. 72, fig. 11.Diplogi-aptus foliaceus var. incisus (Lapworth MS.) Ruedemann, Mem. NewYork State Mus., 11, pt. 2, 1908, pp. 3-47-349, pi. 24, figs. 198, text figs. 283-287.Chazyan: One-half mile beiow Little Mechin Point, Quebec; Stockport andGlenmont, New York (Normanskill). 454 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Diplograptus foUaceus trifldus (Gurley).Diplograptus trifidus Gurley, Geol. Surv. Ark. Rep., 3, 1890, 417, pi. 9, figs,3, 4; Jour. Geol., 4, 1896, pp. 298, 307.Diplograptus foliaceus var. trifidus Ptuedemann, Mem. New York State Mus., 11,pt. 2, 1908, pp. 351, 352, fig. 295.Chazyan (Normanskill): Arkansas.Cotypes.?Gat. No. 54260, U.S.N.M.Diplograptus foliaceus vespertinus Ruedemann. See Diplograptus vespertinus.Diplograptus hudsonlcus Nicholson.Diplograpsus Hudsonicus Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p, 38,fig. 15.Cincinnatian (Pulaski): River Humber, Ontario.Diplograptus Inutilis Hall.Diplograptus inutilis Hall, Geol. Surv. Canada, dec. 2, 1865, p. Ill, pi. 13, fig. 14.? ? Gurley, Jour. Geol., 4, 1896, p. 298.?Ruedemann, New York State Pal. Ann.Rep., 1902, p. 570; Mem. New York State Mus., 7, pt. 1, 1904, p. 721, pi. 16,figs. 12, 13.Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Deepkill,Rensselaer County, New York (Deepkill, D. dentatus zone).Diplograptus laxus Ruedemann. See Cryptograptus antennarius.Diplograptus longlcaudatus Ruedemann.Diplograptus longlcaudatus Ruedemann, Mem. New York State Mus., 7, pt. 1,1904, p. 723, pi. 16, fig. 11.Canadian (Deepkill, Diplograptus dentatus zone) : Deepkill, Rensselaer County,New York.Diplograptus (Amplexograptus) macer Ruedemann.Diplograptus (Amplexograptus) macer Ruedemann, Mem. New York StateMus., 162, 1912, p. 82, pi. 2, figs. 20, 21.Trenton (Canajoharie) : Minaville, New York.DtPLOQRAPTUS MARCiDus Walcott. See Cryptograptus tricornis.Diplograptus (Mesograptus) mohawkensis Ruedemann.Diplograptus (Mesogi'aptus) mohawkensis Ruedemann, Bull. New York StateMus., 162, 1912, p. 80, pi. 2, figs. 18, 19.Trenton (Canajoharie) : Near Amsterdam and near Saratoga, New York.Diplograptus mucronatus Geinitz. See Lasiograptua mucronatus.Diplograptus peosta Hall.Graptolithus pristis (part) Hall, Pal. New York, 1, 1847, p. 72, figs. If, Ig.Graptolithus (Diplograptus) peosta Hall, Geol. Surv.Wisconsin Rep., 1801, p. 17. ? WTiitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 47, pi. 5, fig. 12.Diplograptus peosta Hall, Geol. Wisconsin, 1, 1862, p. 430; 20th Rep. New YorkState Cab. Hist., 1868, p. 223.?Gurley, Jour. Geol., 4, 1896, p. 208.-James,Amer. Geol., 5, 1890, p. 354.?Ruedemann, Mem. New York State llus., 11,pt. 2, 1908, pp. 372-374, pi. 25, fig. 17, text figs. 319-322; Bull. New YorkState Mus., 162, 1912, p. 83, fig. 23, pi. 2, fig. 17.Diplograptus pristis Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1897, p.81. fig. 2. BIBLIOGRAPHIC LIST OF GENERA. AND SPECIES. 455Diplograptus peosta?Continued.Diplograptus amplexicaulis Wlutfiekl and Hovey (part), BulL Amer. Mus. Nat.Hist., 11, pt. 1, 1898, pp. 20-21.?Ruedemann, Bull. New York State Mua.,42, 1901, p. 561.Richmond (Maquoketa): Graf, etc., Iowa; Wisconsin; Illinois; Minnesota; etc.Diplograptus pristiniformis Ruedemann. See Lasiograptus (Thysanograptus)eucharis.Diplograptus pristiniformis Hall (part). See Diplograptus dentatus.Diplograptus pristis Ruedemann (part). See Glossograptus (Orthograptus) quad-rimucronatus.Diplograptus pristis Nicholson. See Diplograptus foliaceus.Diplograptus pristis Winchell and Scliuchert. See Diplograptus peosta.Diplorgaptus pristis Hall (part). See Diplograptus foliaceus vespertinus.Diplograptus putillus Hall. See Climacograptus putillus.Diplograptus quadrimucronatus Nicholson. See Glossograptus (Orthograptus)quadrimucronatus.Diplograptus ruedemanni Gurley. See Lasiograptus (Thysanograptus) eucharis.Diplograptus rugosus Emmons. See Diplograptus foliaceus.Diplograptus secalinus Eaton. See Diplograptus foliaceus.Diplograptus? sextans McCoy. See Dicellograptus sextans.Diplograptus spinulosus "Walcott. See Glossograptus ciliatus.Diplograptus teretiusculus var. putillus Freeh. See Climacograptus putillus,Diplograptus tricornis Carruthers. See Ciyptograptus tricornis.Diplograptus trifidus Gurley. See Diplograptus foliaceus trifidus.Diplograptus respertinus (Ruedemann).Diplo.-^raptus pristis (part) Hall, Pal. New York, 1, 1847, pi. 72, figs. 1, la, lb,Ik, 11.Diplograptus foliaceus mut. vespertinus Ruedemann, Mem. New York State Mus.,11, pt. 2, 1908, pp. 352-354, pi. 25, figs. 4, 5, 18, text figs. 296-298.Diplograptus vespertinus Ruedemann, Bull. New York State Mus., 162, 1912,p. 83.Chazyan (Normanskill) : Van Scliaick Island, etc.. New York.Trenton (Canajoharie) : Mohawk Valley, New York.Diplograptus vulgatus var. acutus EUes and Wood. See Diplograptus acutus.Diplograptus vulgatus var. basilicus Elles and Wood. See Diplograptusbasilicus. Diplophyllum Hall. See Diphyphyllum Lonsdale.DIPLOSTENOPORA Ubich and Bassler. Genotype: Escharopora siluriana Weller.Diplostenopora Ulrich and Badsler, Maryland Geol. Surv., Low. Dov., 1913, p. 276. 456 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM.Diplostenopora silurlaua (Weller).Escharopora siluriana Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 225, pi. 18,figs. 6-7; pi. 19, figs. 8, 9. - Diplostenopora silui'iana Ulrich and Bassler, Maryland Geol. Surv., Low. Dev.,1913, p. 277, pi. 45, figs. 3-6; pi. 48, figs. 1-3; pi. 52, figs. 3-4.Helderbergian: Two miles south Tristates, New York (Decker Ferry); CashValley, etc., near Cumberland, Maryland (Keyser).DiPLOTRTPA Nicholson (part). See Mesotrypa Ulrich.DIPLOTRYPA Nicholson. Genotype: Favosites petropolitanus Pander.Diplotrypa Nicholson, Pal. Tab. Corals, 1879, p. 292; Genus Monticulipora, 1881,pp. 101, 155.?Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 153.?Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 13.?Roemer, Leth. geog., 1,Leth. Pal., 1883, p. 472.?Miller, N. A. Geol. Pal., 1889, p. 187.?Ulrich,Geol. Surv. Illinois, 8, 1890, pp. 378, 457.?Rominger, Amer. Geol., 6, 1890,pp. 116-119.?Ulrich, Geol. Minne30ta, 3, 1893, p. 285; Zittel's Textb. Pal.(Engl, ed.), 1896, p. 275; also (not Uhich) p. 104 (in part).?Nickles andBassler, Bull. U.S. Geol. Surv., 173, p. 36.?Bassler, Bull. U. S. Geol. Surv.,292, 1906, p. 47; Zittel-Eastman Textb. Pal., 1913, p. 338; Bull. U. S. Nat.Mus., 77, 1911, pp. 312, 313.Callopora (not Hall) Dybowski, Die Cheetetiden d. Ostb. Silur-Form., 1877,p. 106.Diplotrypa? diibia Ulrich.Diplotrypa? dubia Uhich, Geol. Surv. Illinois, 8, 1890, p. 459, pi. 33, figs. 3-3b.Monticulipora dubia J. F. James, Jour. Cincinnati Soc. Nat. Hist., IG, 1894,p. 182.Dianulites dubia Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.).Richmond (Fernvale): "Wilmington, Illinois.Sections of holotype.??at. No. 43390, U.S.N.M.Diplotrypa infida Ulrich. See Mesotrypa Infida.Diplotrypa llmitarls Ulrich.Diplotrypa limitaris Ulrich, Geol. Minnesota, 3, 1893, p. 286, fig. 18.?Sardeson,Jour. Geol., 9, 1901, p. 8, pi. A, figs. 3, 4.Dianulites limitaris Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.).Trenton (Prosser): Goodhue County, Minnesota.flbZofype.?Cat. No. 43534, U.S.N.M.Diplotrypa milleri Ulrich. See Mesotrypa nummiformis,Diplotrypa neglecta Ulrich,Diplotrypa neglecta Uhich, Geol. Minnesota, 3, 1893, p. 287, fig. 19.Dianulites neglecta Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.).Trenton (Prosser) : Hader, Minnesota.Eolotype.?C&t. No. 43533, U.S.N.M.Diplotrypa patella Ulrich. See Mesotrypa patella.Diplotrypa Quebecensis Ami. See Mesotrypa quebecensis.Diplotrypa regulahis Foord. See Mesotrypa regularis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 457DIplotrypa walkeri Bassler.Diplotrypa walkeri Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 47-48, pi. 16,figd. 1-5; pi. 25, fig. 4.Clinton (r.,ochester) : Lockportand Rochester, New York; Grimsby, Ontario.Cotype3?C2i,i. No. 35527, U.S.N.M.Diplotrypa westonl Ulrich.Diplotrypa westoni UWch, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 30,pi. 8, figs. 4-4b; Zittel's Textb. Pal. (Engl, ed.), 1896, fig. 457 (p. 274).?Whiteaves, Pal. Fobs., 3, pt. 3, 1897, p. 163.?Bassler, Bull. U. S. Nat. Mus.,77, 1911, p. 323, fig. 201; Zittel-Eastman Textb. Pal., 1913, p. 338.Black river or Richmond: Big Island, Lake Winnipeg, Manitoba.Ordovician (Chasmops): Nittsjo Ratvik, Dalarne, Sweden, and south of Boda-hamn, island of (Eland, Baltic Sea.Part of holotype.?Q&t. No. 43810, U.S.N.M.DiPRiON FOLiACEUs Harkness. See Diplograptus foliaceua.DisciNA HaU. See Orbiculoidea D'Orbigny.DisciNA ciECE Billings. See Orbiculoidea lamellosa.DisciNA CLARA Spencer. See Schizotreta tenuilamellata.DisciNA coNCORDENSis Sardeson. See Schizotreta pelopea.DisciNA DEFORMis Lincklaen. See Archinacella deformata.Discina?? fletcheri Ami.Discina iletcheri Ami, Proc. and Trans. Nova Scotian Inst. Sci., 8, 1895, p. 412.Silurian: Antigonish County, Nova Scotia.Discina forbesi, Nicholson. See Schizotreta tenuilamellata.Discina lamellosa Hitchcock. See Orbiculoidea lamellosa.Discina?? novascotica Ami.Discina novascotica Ami, Proc. and Trans. Nova Scotian Inst. Sci., 8, 1895,p. 412.Silurian: Antigonish County, Nova Scotia.Discina?? orientalis Ami.Discina orientalis Ami, Proc. and Trans. Nova Scotian Inst. Sci., 8, 1895, p. 413.Silurian: Antigonish County, Nova Scotia.Discina parmulata Lincklaen. See Orbiculoidea parmulata.Discina pelopea Billings. See Schizotreta pelopea.Discina solitaria Ringueberg. See Schizotreta tenuilamellata.Discina sublamellosa Ulrich.Discina sublamellosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1S78, p. 97, pi.4, fig. 11.?Miller, N. A. Geol. Pal., 1889, p. 344.?Schuchert, Bull. U. S.Geol. Surv., 87, 1897, p. 218.Eden (Economy): Covington, Kentucky.Observation.?Probably not a brachiopod; possibly a pelecypod.Discina tenuilamellata var. subplana Hall. See Orbiculoidea subplana.Discina tenuistrlata Ulrich. See Orbiculoidea tenuistriata. 458 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.DisciNA TRUNCATA Emmons. See Orbiculoidea lamellosa.DisciNA vANUXEMi HaU. See Orbiculoidea vanuxemi.DISCOCERAS Barrande. Genotype: Clymenia antiquissima Eichwald.Discoceras Barrande, Cephalopodes; Ext. Syst. Sil. du Centre Bohemc, 1S77, p.95.?Angelin, Fragmenta Silurica, 1880, p. 9.?Zittel, Handb. Pal., 2, 1384,p. 377.?Remele, Zeits. d. d. geol. Gesell., 28, 1886, p. 468.?Schroder, Pal.Abhandl. von Dames u. Kayser, Neue Folge, 1, Heft. 4, Jena, 1891, p. 20. ? Hj^att, Proc. Amer. Phil. Soc, 32, 1894, p. 500.?Koken, Die Leitfossilien,Leipzig, 1896, p. 51.?Miller, N. A.Geol. Pal., 2d, App., 1897, p. 772.?Grabauand Shimer, N. A. Index Fossils, 2, 1910, p. 72.Discoceras canadense Whiteaves.Discoceras Canadense Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897,p. 227, pi. 22, figs. 3, 3a.Black River or Richmond: Little Black Island; Lake Winnipeg, Canada.Discoceras eatoni Schroeder. See Scliroederoceras eatoni.Discoceras graftonenso (Meek and Worthen).Lituites Graftonensis Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia,1870, p. 51; Geol. Surv. Illinois, 6, 1875, p. 507, pi. 25, fig. 1.?Newell, Proc.Boston Soc. Nat. Hist., 1888, 23, p. 485 (loc. occ.).?Whiteaves, Pal. Foss.,Geol. Surv. Canada, 3, pt. 2, 1895, p. 105.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 72.Lituites multicostatus Whitfield, Ann. Rep. for 1879, 1880, p. 67; Geol. Wisconsin,4, 1882, p. 303, pi. 20, fig. 7.?Newell, Proc. Boston Soc. Nat. Hist., 23, 1888,p. 486 (loc. occ).Trocholites multicostatus Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1,1884, p. 36, pi. 6, figs, 1, la.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1890, p. 1229, figs.Niagaran: Grafton, Illinois; Waukesha, Wisconsin; Indiana; Elora and Hespeler,Ontario (Guelph).Discoceras internistriatum Schroeder. See Trocholites internistriatus.Discoceras marshi (Hall).Lituites marsliii Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 362-pl. 16(7), figs. 6, 7; rev. ed., 1870, p. 404, pi. 16, figs. 6, 7.?Nettelroth, Ken,tucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 195, pi. 30, fig. 1.?Kindleand Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 473, pi.21, fig. 4.Discoceras marsliii Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 72, fig.1284.Niagaran: Kankakee, Illinois; Louisville, Kentucky; AVabash, Indiana.Plesiohjpe?Ca,t. No. 51378, U.S.N.M.Discoceras ortoni (Meek).Lituites? Ortoni Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. ISG, pi. 15, fig. 4(Gyroceras? Ortoni at end of description).Discoceras ortoni Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen. rcf.).Niagaran (Guelph) : Greenville, Darke County, Ohio.DiscoLiTES Emmons. See Microceras Hall.DiscoLiTES MZNirrus Emmons. See Microceras inornatum. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 459DISCOPHTCUS Walcott. Genotype: D. typicale Walcott,Discophycus Walcott, Trana. Albany Inst., 10, 1883, p. 19 (adv. sheets, 1879). ? Miller, N. A. Geol. Pal., 1889, p. 117.Discophycus typicale Walcott.Discophycus typicalis Walcott, Trans, Albany Inst., 10, 1883, p. 19, pi. 2, figs.18, 18a (adv. sheets, 1879).?James, Jour. Cincinnati Soc. Nat. Hist., 7,1884, p. 128, pi. 5, fig. 4.Utica: Trenton, Oneida County, New York.DISCOPHTLLUM Hall. Genotype: D. peltatum Ilall.Discophyllum Hall, Pal. New York, 1, 1847, p. 277Discopliyllum peltatum Hall.Discophyllum peltatum Hall, Pal. New York, 1, 1847, p. 277, pi. 75, fig. 3.Chazyan (Normanskill) or Trenton (Snake Hill): Near Troy, New York.DISCOSORUS Hall. Genotype: D. conoideus HallDiscosorus Hall, Pal. New York, 2, 1852, p. 99, pi. 28.?Woodward, Mpn. Mol-lusca, pt. 3, 1856, p. 449.?Hall, 12th Rep. New York State Cab. Nat. Hist.,1859, p. 81.?Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 272.?Foord,Cat. Foss. Ceph. British Mus., 1, 1888, p. 194.?Miller, N. A. Geol. Pal., 1889,p. 436.Discosorus conoideus Hall.Columns of circular discs, etc., Bigsby, Trans. Geol. Soc. London, ser. 2, 1, 1824,p. 204, pi. 30, figs. 4, 6.Discosorus conoideus Hall, Geol. Lake Sup. Land Dist., Foster and Whitney'sRep., 1851, p. 222, pi. 34, figs. 2, 3; Pal. New York, 2, 1852, p. 99, pi. 28,figs. 13a-c.?WTiitfield, Geol. Wisconsin, 4, 1882, p. 299, pi. 20, fig. 6.?Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 196, fig. 25.Orthoceras? (Discosorus) conoideus Barrande, Syst. Sil. du Centre Boheme, 2,pt. 3, 1864, p. 750, pi. 232, 437, 474.?Foerste, Proc. Boston Soc. Nat. Hist.,24, 1889, p. 286; Geol. Surv. Ohio, Pal., 7, 1893, p. 546, pi. 36, fig. 8.Gomphoceras conoideum Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11,pt. 2, 1899, p. 172. (Regarded as internal cast of siphon.)Silurian: Ontario and Lockport, New York (Lower Clinton); Todds Fork, Clin-ton County, Ohio (Brassfield); Ashford, etc., Wisconsin; Drummond Island,Lake Huron (Niagaran).Discosorus gracilis Foord.Discosorus BaiTande, Syst. Sil. Boheme, 2, suppl. 1877, pi. 474, figs. 9, 10.Discosorus gracilis Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 198, fig. 26.Niagaran: Drummond Island, Lake Huron.Discosorus remotus Foord.Columns of circular discs, etc., Bigsby, Trans. Geol. Soc, 2d ser., 1, 1824, p. 204,pi. 30, fig. 7.Discosorus remotus Foord, Cat. Foss. Ceph, British Mus., 1, 1888, p. 197.Niagaran: Drummond Island, Lake Huron.DISCOTRYPA Ulrich. Genotype: Chaetetes elegans Ulrich.Discotrypa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 155.?Miller, N.A. Geol. Pal., 1889, p. 300.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 378.?Nicklesand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 30. 460 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Discotrypa elegans (Ulrich).Chsetetea elegans Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 130, pi.12, figs. 12, 12a.Discotrypa elegans Ulrich, ibid., 6, p. 163, pi. 7, fig. 1-lb.Mouticulipora elegans James andJames, ibid., 10, 1888, p. 165.?J. F. James, ibid.,16, 1894, p. ISO.Maysville (Fairmouat): Cincinnati, Ohio, and vicinity.Bolotype?Cat. No. 43653, U.S.N.M.DISTACODUS Hinde. Genotype: Machairodus incurvois Pander.Machairodus Pander, Mon. Foss. Fische Sil. Syst., 1856, p. 23.Distacodus Hinde, Quart. Jour. Geol. Soc. London, 35, 1S79, p. 357. (Proposedfor Machau'odus Pander, preoccupied by Kaup.)?Miller, N. A. Geol. Pal.,1889, p. 518.Distacodus Incurvus (Pander).Machairodus incurvus Pander, Mon. Foss. Fische Sil. Syst., 1856, p. 23, tab. 1,fig. 22.Distacodus incurvus Hinde, Quai't, Jour. Geol. Soc. London, 35, 1879, p. 357, pi.15, fig. 9.Middle Ordovician: Esthonia, Russia.Maysville (Pulaski): Garrison Common, near Toronto, Ontario.DITCECHOLASMA Simpson. Genotype: Petraia fanningana Safford.Ditoecholasma Simpson, Bull. New York State Mus., 39, 1900, p. 200.Ditcecholasma fanninganum (Safford).Petraia Fanningana Safford, Geol. Tennessee, 1869, p. 320, pi. 5, (H), figs. 3a-g. ? Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 627, figs.Duncanella fanningana Girty, 19th Ann. Rep. U. S. Geol. Siu-v., 1899, p. 552.Ditoecholasma fanninganum Simpson, Bull. New York State Mus., 39, 1900, p.201, figs. 5, 6.Ditoecholasma (Petraia) fanningana Foerste, Joiu*. Geol., 11, 1903, p. 713 (loc. occ).Niagaran (Brownsport): Decatur, Perry, and Wayne Counties, Tennessee.DoLABRA CARiNATA Meek. See "Whitella carinata.DoLABRA STERLiNGENSis Meek and Worthen. See Whitella sterlingensis.DOLICHOMETOPUS Angelin, Genotype: D. euecicus Angelin.DoUchometopus Angelin, Pal. Scandinavica, 3d ed., Holmioe, 1878, p. 72.? . Woodward, Geol. Mag., dec. 3, 1, 1884, p. 343.?Zittel, Handb. Pal., 2, 1885,p. 599.?Miller, N. A. Geol. Pal., 1889, p. 545.?Koken, Die Leitfossilien,Leipzig, 1896, p. 15.?Matthew, Trans. Royal Soc. Canada, 2d ser., 3, sec.4, 1897, pp. 184, 195.?Walcott, Cam. Faunas China, Yearb.. Carnegie Tnst., 3,1913, p. 215.?Clai-ke, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 783.Amphoton Lorenz, Zeit. deutsch. geol. Gesell., 58, 1906, p. 75. (Genotype: A.steinmanni Lorenz.)Dolichometopus(?) convexus Billings.DoUchometopus? convexus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p.269, fig. 253.Canadian (Quebec-G): Port aux Choix, Newfoundland.Dolichometopus(?) gibberulus Billings.DoUchometopus? gibberulus Billings, Pal. Foss., 1, 1865, Geol. Surv. Canada, p.269, fig. 254.Canadian (Quebec-G): Port aux Choix, Newfoundland. BIBLIOGKAPHIC LIST OF GENEEA AND SPECIES. 461Dollchometopus mccoyl (Walcott).Barrandia? McCoyi Walcott, Mono. U. S. Geol. Surv., 8, 1884, p. 9G, pi. 12, fig. 5.Niobe Maccoyi Freeh, Letli. geog., Letli. Pal., 2, 1S97, pi. lb, fig. 2.Upper Pogonip: Ridge east of Hamburg Ridge, Eureka District, Nevada.Cotype.?Ca.t. No. 24650, U.S.N .M.Dolichometopus(?) rarus BilUngs.Dolichometopus? rarus Billings, Pal. Foss., 1, 1865, p. 352, text fig. 338.Canadian (Beekmantown): Townsliip of Oxford, Canada.DOLICHOPTERUS Hall. Genotype: D. macrocheirus Hall.Dolichopterus Hall, Pal. New York, 3, 1859, p. 414.?Zittel, Handb. Pal., 2, 1885,p. 651.?Miller, N. A. Geol. Pal., 1889, p. 545.?Laurie, Nat. Sci., 3, 1893,p. 125.?Clarke, Zittel-Eastman Textb. Pal., 1, 1900, p. 676.?Grabau, Bull.Buffalo Soc. Nat. Sci., 7, 1901, p. 230; Bull. New York State Mus., 45, 1901,p. 230.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 410.?Clarkeand Ruedemann, Mem. New York State Mus., 14, 1912, p. 258.Dolichopterus breviceps Clarke and Ruedemann.Dolichopterus breviceps Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 414, fig. 98.Chazyan (Normanskill) : Catskill, New York.Dolichopterus frankfortensis Clarke and Ruedemann.Dolichopterus frankfortensis Clarke and Ruedemann, Mem. New York State Mua.,14, 1912, p. 268, pi. 83, figs. 9-14.Trenton (Schenectady): Schenectady, Aqueduct, Rotterdam Junction, and Du-anesburg. New York.Dolichopterus latifrons Clarke and Ruedemann.Dolichopterus latifrons Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 269, pi. 83, figs. 15-16.Trenton (Schenectady): Schenectady, New York.Dolichopterus macrocheirus Hall.DoUchopterus macrocheirus Hall, Pal. New York, 3, 1859, p. 414, pi. 83, fig. 1, pi.83a, fig. 1.?Pohhnan, Bull. Buffalo Soc. Nat. Sci., 4, 1881, p. 20.?Grabau,Bull. New York State Mus., 45, 1901, p. 230; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 230.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 410, fig.1711.?Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 262,pi. 35, fig. 1; pis. 40-15, text fig. 61.Cayugan (Bertie): Williamsville, Litchfield, etc.. New York.Plesiotype.?C'i.t. No. 60052, U.S.N.M.Dolichopterus otisius (Clarke).Pterygotus? otisius Clarke, Bull. New York State Mus., 107, 1907, p. 308, pi. 6,figs. 6, 7. , Dolichopterus otisius Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 270, pi. 46, figs. 1-8.Medinan (Shawangunk) : Otisville, New York; Delaware Water Gap, Penneyl-vania.Dolichopterus siluriceps Clarke and Ruedemann.Eusarcus scorpionis Pohlman, Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 30, pi. 3,fig. 3.Dolichopterus siluriceps Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 273, pi. 26, fig. 3.Cayugan (Bertie): Williamsville, New York. 462 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Dolichopterus stylonuroides Clarke and Ruedemann.Dolichopterus stylonuroides Clarke and Ruedemann, Mem. New York StateMus., 14, 1912, p. 276, pi. 4G, figs. 9-14.Medinan (Shawangunk): Otiaville, New York.Dolichopterus(?) testudineus Clarke and Ruedemann.DoIichopterus(?) testudineus Clarke and Ruedemann, Mem. New York StateMus., 14, 1912, p. 274, pi. 57, figs. 1, 2.Cayugan (Bertie): Near Crane's Comers, Litclifield, Herldmer County, New York.DoNACiCRimTES BiPARTiTUs Troost. See Erisocrinus? bipartitus.DotTvruNA Hall and Clarke. See Stropheodonta Hall.DREPANELLA Ulrich. Genotype: D. crassinoda Ulrich.Drepanella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, pp. 117, 118 (Depra-nella in error).?Miller, N. A. Geol. Pal., 1st, App., 1892, p. 707.?Ulrich, Geol.Minnesota, 3, pt. 2, 1894, p. G70; Zittel-Eastman Textb. Pal., 1, 1900, p. 644.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35,1908, p. 311.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 349.Drepanella ampla Ulrich.Drepanella ampla Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 120, pi. 8,fig. 2.?Uhich and Bassler, Proc. U. S. Nat. Mus., 85, 1908, pi. 41, fig. 9.Stones River (?Ridley): Bottom of gorge, High Bridge, Kentucky.Eolotype.?C&t. No. 41375, U.S.N .M.Drepanella ampla var. elongata Ulrich (1894). See Drepanella crassinoda.Drepanella bigeneris Ulrich.Drepanella bigeneris Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 672, pi. 44, figs.20-22.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 41, figs. 1-3.Black River (Platteville): Minneapolis, Minnesota.Cotypes.?Ca.t. No. 41379, U.S.N.M.Drepanella bilateralis Ulrich. See Scofieldia bilateralia.Drepanella crassinoda Ulrich.Drepanella crassinoda Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 118,pi. 8, figs. la-c.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 291,fig. 18, pi. 41, figs. 4-6.?Grabau and Shimer, N. A. Index Fossils, 1910, p.349, fig. 16571-n.?Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 23, fig. 12;Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425o.Drepanella ampla var. elongata (in error for D. crassinoda) Ulrich, Geol. Minne-sota, 3, pt. 2, 1894, p. 670, fig. 48a-c.Black River (Lowville): High Bridge, Kentucky; Viiginia; Tennessee.Holotype.?Ca.t. No. 41377, U.S.N.M.Drepanella crassinoda nitida Ulrich. See Drepanella nitida. ,Drepanella elongata Ulrich.Drepanella elongata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 121,pi. 8, figs. 5a, b.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 41,figs. 10, 11.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 349, fig.16570.Drepanella macra Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 670, fig. 48d (not48c= D. crassinoda).Stones River (?Ridley): Bottom of gorge, High Bridge, Kentucky.Eolotype.?Cat. No. 41376, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 463Drepanella macra Ulrich (1894). See Drepanella elongata.Drepanella macra Ulrich.Drepanella macer Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1894, p. 119, pi.8, figs. 4a-c.Drepanella macra Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 291, fig.17, pi. 41, figs. 12-14.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.350, fig. lGG4a-c.Stones Pdver (Lebanon): Lavergne, Lebanon, and Columbia, Tennessee.Holotype?Cat. No. 41373, U.S.N.M.Drepanella nitida (Ulrich).Drepanella crassinoda nitida Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890,p. 119, pi. 8, figs. 3a, b.Drepanella nitida Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 291,fig. 19, pi. 41, figs. 7, 8.Black River (Lowville): High Bridge, Kentucky.Holotype?C&t. No. 41378, U.S.N.M.Drepanella rlchardsoni (Miller).Beyrichia richardsoni Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 347, fig. 40; ' N. A. Geol. Pal., 1889, p. 535, fig. 978.Drepanella richardsoni Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 117. ? Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 292, fig. 23, pi. 41,fig. 15.Bichmond ("^Tiitewater) : Wilmington, Ohio.Plesiotype.?C&t. No. 41407, U.S.N.M.Drepanella richardsoni canadensis Ulrich.Drepanella richardsoni var. canadensis Ulrich, Jour. Cincinnati Soc. Nat. Hist.,13, 1890, p. 118.Richmond: OakviUe, Ontario. ^Cotypes?Cat. No. 41374, U.S.N.M.Drepanella symmetrica (Emerson).Beyrichia symmetrica Emerson, Narrative Hall's 2d Arctic Exped., U. S. NavyDep., 1879, p. 581, fig. 9.Richmond: Frobisher Bay, Baffin Land.Plastotype.?C&t. No. 60729, U.S.N.M.DREPANODUS Pander. Genotype: D. arcuatus Pander.Drepanodus Pander, Mon. d. foss. Fische Sil. Syst., 1856, p. 20.?Miller, N. A.Geol. Pal., 1889, p. 518.?Orabau and Shimer, N. A. Index Fossils, 2, 1910,p. 245.Drepanodus arcuatus Pander.Drepanodus arcuatus Pander, Mon. foss. Fish. Sil. Syet., 1856, p. 20, tab. 1, figs.2, 4, 5.?Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 357, pi. 15, figs.7, 8.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 245, fig. 1537, d, e.Middle Ordovician: Esthonia, Russia.Maysville (Pulaski): Garrison Common, near Toronto, Ontario.Drepanopterus Laurie. See Stylonurus subgenus Drepanopteruo.Drymopora Davis. See Syringopora subgenus Drymopora.Drymotrypa Ulrich. See Pseudohornera Roemer. 464 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.DUNCANELLA Nicholson. Genotype: D. borealis Nicholson.Duncanella Nicholson, Ann. Mag. Nat. Hist., 4th ser., 13, 1874, p. 333.?Zittel;Handb. Pal., 1, 1879, p. 226.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883,p. 396.?Miller, N. A. Geol. Pal., 1889, p. 187.?Freeh, Palaeontographica, 37,1890, p. 81.?Sherzer, Amer. Geol., 7, 1891, pp. 278-283.?Girty, 19th Ann.Kep. U. S. Geol. Surv., 1899, p. 556; Zittel-Eastman Textb. Pal., 1, 1900,p. 74; 2d ed., 1913, p. 82.?Grabau and Shimer, N. A. Index Fossils, 1, 1906,p. 76.Duncanella borealis Nicholson.Duncanella bcrealis Nicholson, Ann. Mag. Nat. Hist., 4th ser., 13, 1874, p. 334,fig.?Miller, N. A. Geol. Pal., 1889, p. 187, fig. 172.?Grabau and Shimer,N. A. Index Fossils, 1, 1906, p. 76.Streptclasma (Duncanella) borealis Hall, 28th Rep. New York State Mus. Nat.Hist., mus. ed., 1879, p. 106, pi. 5, figs. 7, 8; 11th Ann. Rep. Indiana Dep.Geol. Nat. Hist., 1882, p. 226, pi. 1, figs. 7-10; pi. 4, fgs. 7, 8.Streptclasma borealis Lesley, Geol. Surv. Pennsj^lvania, Rep. P 4, 1890, p. 1084,figs.Streptclasma minima Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1875, pi. 5, figs. 7, 8.Niagaran (Waldron): Waldi'on, Indiana; Newsom, Tennessee.Clinton (Osgood): Osgood, Indiana.Duncanella fanningana Girty. See Ditcecholasma fanninganum.Dybowskia Waagen and Pichl. See Fistulipora McCoy.Dybowskiella Waagen and Wentzel. See Fistulipora McCoy.DTERIA Ulrich. Genotype: Cyrtolitee costatus James.Dyeria Uhich, Geol. Minnesota, 3, pt. 2, 1897, p. 1044.Dyerla costata (James).Cyrtolites costatus James, Amer. Jour. Sci., 3d ser., 3, 1872, p. 26.?Meek, Geol.Surv. Ohio, Pal., 1, 1873, p. 150, pi. 13, figs, la, b, c.Bucania costatus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 308.Dyeria costata, Ulrich, Geol. Minnssota, 3, pt. 2, 1897, p. 1044. text fig. 8.?Grabau,Amer. Nat., 36, 1902, p. 939.MaysviUe (Corryville) : Cincinnati, Ohio, and vicinity.Plesiotypes.?Cat. No. 45796, U.S.N.M.DTSTACTOPHYCUS Miller and Dyer.Genotype: D. mammillanum Miller and Dyer.Dystactophycus Miller and Dyer, Cont. to Pal., 2, 1878, p. 2.?James, Jour.Cincinnati Soc. Nat. Hist., 7, 1885, p. 163.?Miller, N. A. Geol. Pal., 1, 1889,p. 117.Dystactophycus mammillanum Miller and Dyer.Dystactophycus mammillanum Miller and Dyer, Cont. to Pal., 2, 1878, p. 3, pi.3, fig. 4.?James, Joiu*. Cincinnati Soc. Nat. Hist., 18, 1895, p. 125.?Miller,N. A. Geol. Pal., 1889, p. 118, fig. 34.MaysviUe (Corryville): Near Morrow, Ohio.DTSTACTOSPONGIA Miller. Genotype: D. insolens Miller.Dystactospongia Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 42.?Miller,N. A. Geol. Pal., 1889, p. 158.?James, J. F., Jour. Cincinnati Soc. Nat.Hist., 14, pt. 1, 1891, p. 70. BIBLIOGKAPHIC LIST OF GENERA AND SPEdlES. 465Dystactospongia insolens Miller.Dystactospongia insolens Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1S82, p.43, pi. 2, figs. 2a-b.?James, ibid., 14, 1891, p. 70.?Miller, N. A. Geol. Pal.,1889, p. 158, fig. 102.Stromatopora insolens James, Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 250.Maysville (Fairmount): Cincinnati, Ohio, and vicinity.Dystactospongia madisonensis Foerste.Dystactospongia madisoneneie Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909,p. 302, pi. 9, figs. 1, 5; ibid., 16, 1910, p. 20.Richmond (Wliitewater-Saluda) : Madison, Osgood, and Versailles, Indiana.Dystactospongia minima Ulrich.Dystactospongia minima Ulrich, Amer. Geol., 3, 1889, p. 243.?^James, J. F.,Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, p. 70.Richmond (Waynesville) : Hanover, Butler County, Ohio.Holotype.?Cat. No. 46553, U.S.N.M.Dystactospongia minor Uhich and Everett.Dystactospongia minor Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 278,pi. 8, figs. 3a-b.?Hayes and Ulrich, U. S. Geol. Surv., folio 95, 1893, illust.sheet, figs. 48, 49.Black River: Dixon, Illinois (Platteville); Columbia, etc., Tennessee (Carters).Sections of holotype and plesiotypes.?Cat. Nos. 46554, 35404, U.S.N.M.Dystactospongia nidis Ulrich and Everett.Dystactospongia rudis Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 279,pi. 8, figs. 4, 4a.Black River (Platteville): Dixon, Illinois.Sections oi holotype.?Ca,t. No. 46555, U.S.N.M.EATONIA Hall. Genotype: Atrypa peculiaris Conrad.Eatonia Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, p. 90; 12th Rep.,ibid., 1859, p. 35; Pal. New York, 3, 1859, p. 432.?Billings, Proc. PortlondSoc. Nat. Hist., 1863, p. 111.?Zittel, Handb. Pal., 1, 1880, p. 691.?Waagen,Mem. Geol. Surv. India, Pal. Indica, 13th ser., 1883, p. 412.?Miller, N. A.Geol. Pal, 1889, p. 345.?Hall and Clarke, Pal. New York, 8, pt. 2, ]S93, p.205; 13th Ann. Rep. New York State Geologist, 1895, p. 829.?Koken, DieLeitfossilien, Leipzig, 1896, p. 245.?Miller, N. A. Geol. Pal., 2d App., 1897,p. 760.?Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 219.Eatonia goodlandensis Kindle and Breger.Eatonia goodlandensis Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1904, p. 439, pi. 8, figs. 10-12.Niagaran: Near Goodland, Indiana.EccopTocHiLE? MEEKANUS Slocom. See Ceraurinus icarus.EccuLioMPHALUS of authors. See Eccyliomphalus Portlock.EccYLioMPHALUs (part) of authors. See Eccyliopterus Remele.ECCYLIOMPHALUS Portlock. Genotype: E. bucklandi Portlock.Ecculiomphalus Portlock, Geol. Rep. Londonderry, 1843, p. 411.Eccyliomphalus McCoy, British Pal. Rocks and Foss., 1854, p. 001.?Remele,Zeits. d. d. geol. Gesell., 40, 1888, p. 666.?Koken, Neues Jahrb. f. Min., Geol.,84243??Bull. 92?15 30 466 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.ECCYLIOMPHALUS?Continued.Pal., 6, Beila~e-Band, 1889, p. 317.?Miller, N. A. Geol. Pal., 1889, p. 402.?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 1024, 1029, 103G.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 276.?Grabau and Shimer, N.N. A. Index Fossils, 1, 1909, p. 662.Orthostoma Conrad, 2d Ann. Rep. New York Geol. Surv., 1838, p. 119.?Miller,N. A. Geol. Pal., 1889, p. 414 (Genotype: 0. commune Conrad).Calaurops Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 314.?Miller, N. A.Geol. Pal., 1889, p. 399.?Grabau and Shimer, N. A. Index Fossils, 1, 1909,p. 662 (Genotype: C. lituiformig \Miitfield).Eccyliomphalus atlanticus (Billings).EccuUomphalus Atlanticus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p.250.Canadian (Quebec?F., G.): Bay of St. John and Keppel Island, Newfoundland.Eccyliomphalus calciferus (Whitfield).Euomphalua calciferus "Whitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 47,pi. 8, figs. 12, 13.Canadian (Beekmantown): Beekmantown, New York.Eccyliomphalus (Orthostoma) canadensis (Billings).Ecculiomphulus Canadensis Billings, Canadian Nat. Geol., 6, 1861, p. 320, fig. 4;Geol. Canada, Geol. Surv. Canada, 1863, p. 232, fig. 248.Calaurops Canadensis "Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 315(gen. ref.VCanadian (Beekmantown): Ormstown, Phillipsburg, and Point Levis, Quebec.Eccyliomphalus circinatus (Whiteaves).EccuUomphalus circinatus ^Vhiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1,1884, p. 35, pi. 5, figs. 4 a-b; pi. 8, fig. 5; ibid., pt. 2, 1895, p. 86.Niagaran (Guelph): Gait, Hespeler, Elora, and Durham, Ontario.Eccyliomphalus (Orthostoma) communis (Conrad).Orthostoma communis Conrad, 2d Ann. Rep. New York Geol. Surv., 1838, p.119.?Hall, 15th Rep. New York State Cab. Nat. Hist., 1861, pi. 11, fig. 16.?Miller, N. A. Geol. Pal., 1889, p. 414, fig. 691.Mohawkian (Trenton?): New York.Eccyliomphalus compressus ("Whitfield).EccuUomphalus compressus Whitfield, Biill. Amer. Mus. Nat. Hist., 9, 1897, p.180, pi. 4, fig. 13.?Seely, Vermont State Geol. Rep., 7, 1910, pi. 61, fig. 13.Canadian (Beekmantown): Colchester, Vermont.Eccyliomphalus contiguus Ulrich,Eccyliomphalus contiguus Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1037, pi. 75,figs. 48-52.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 185, pi. 12,figs. 13-15.Stones River (Murfreesboro) : Murfreesboro, Tennessee.?Trenton: Jacksonburg. New Jersey.Cotypes.?Csd. No. 45797, U.S.N.M.Eccyliomphalus distans (Billings).EccuUomphalus distans Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 240,fig. 235.Eccyliomphalus distans Miller, N. A. Geol. Pal., 1889, p. 403, fig. 072.?Grabauand Shimer, N. A. Index Fossils, 1, 1909, p. 663, fig. 915.Chazyan (Quebec?P.): Cow Head, Newfoundland. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 467Eccyllomphalus frederlcus Raymond.Eccyliomphalus fredericus Raymond, BuU. Amer. Pal., 3, 1902, p. 305, pi. 18,fig. 4; Ann. Carnegie Mus., 4, 1908, p. 202, i)l. 53, figs. 1-3.Chazyan: Crowoi Point, Valcour, etc., New York (Crown Point); Mingan Islands,Canada (^tingan).Eccyliomphalus gyroceras (Roemer).Euomphalus gyroceras Roemer, Ivreide von Texas, 1852, pi. 11, figs. 6a, b, p. 91.Eccyliomphalus gyroceras Miller, N. A. Geol. Pal., 1889, p. 403 (gen. ref.).Canadian (Beelcmantown) : Sau Saba Valley, Texas.Eccyliomphalus intortus (Billings).Ecculiomphalus intortus Billings, Canadian Nat. Geol., 6, 1861, j). 320, fig. 5;Geol. Canada, Geol. Surv. Canada, 1863, p. 232, fig. 249.Canadian (Beekmantown) : Edwardstown, Phillipsburg, and Point Levis, Quebec.Eccyliomphalus kalmi (Raymond).Eccylioptenis kalmi Raymond, Ann. Carnegie Mus., 3, 1906, p. 576.Eccyliomphalus kalmi Raymond, Ann. Carnegie Mus., 4, 1908, p. 202, pi. 53, fig. 4.Chazyan (Crown Point): Sloop Bay, Valcour Island. New York,Eccyliomphalus (Orthostoma) lituiformis (Whitfield).Calaurops lituiformis 'WTiitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 315, pi.26, figs. 1-4.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 662, fig.914.?Seely, Vermont State Geol., Rep., 7, 1910, pi. 60, fig. 4.Eccyliomphalus (Calaurops) lituiformis Ulrich and Scofield, Geol. Minnesota, 3,pt. 2, 1897, p. 1023 (gen. ref.).Canadian (Beekmantown): Fort Cassin, Vermont.Eccyliomphalus multiseptarius (Cleland),Ecculiomphalus multiseptarius Cleland, Bull. Amer. Pal., 3, 1900, p. 123 (251),pi. 15, figs. 1-4: Bull. Amer. Pal., 4, 1903, p. 17.Canadian (Tribes Hill): Near Fort Hunter, New York.Eccyliomphalus perkinsi (Whitfield).Euomphalus Perkinsi Whitfield, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 30, pi.1, figs. 10-14.?Seely, Vermont State Geol. Rep., 7, 1910, pi. 56, figs. 6, 7.Eccyliomphalus perkinsi Miller, 1st App. N. A. Geol. Pal., 1892, p. 693 (gen. ref.).Canadian (Beekmantown): Fort Cassin, Vermont.Eccyliomphalus priscus (\VTiitfield).Ecculiomphalus priscus WTiitfield, Bull. Amer. Mua. Nat. Hist., 2, 1889, p. 46,pi. 8, figs. 19, 20.Canadian (Beekmantown): Near Beekmantown, New York.Eccyliomphalus proclivis (Raymond).Eccyliopterus proclivis Raymond, Ann. Carnegie Mus., 3, 1906. p. 576.Eccyliomphalus proclivis Raymond, Ann. Carnegie Mus., 4, 1908, p. 203, pi. 53,fig. 5.Chazyan (Crown Point): Crown Point, New York.Eccyliomphalus spiralis (Billings).Ecculiomphalus spiralis Billings, Canadian Nat. Geol., 6, 1861, p. 321.Canadian (Beekmantown): Phillipsburg, Quebec.Eccyliomphalus subelliptlcus Weller.Eccyliomphalus subelllpt'ca Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 219,pi. 4, fig. 6.Canadian (Beekmantown): Columbia, New Jersey. 468 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Eccyliomphalus subrotundus Ulrich and Scofield.Eccyliomphalus subrotundus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 1037, pi. 75, figs. 17, 18.Trenton (Prosser): Wykoff, Minnesota.Eolotype.?<:at. No. 45798, U.S.N.M.Eccyliomphalus suporbus (Billings).Ecculiomplialus superbus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 250.Chazyan (Quebec?P): Portland Creek, Newfoundland.Eccyliomphalus trentonensis (Conrad).Cyrtolites Trentonensis Conrad, Jour. Acad. Nat. Sci., PHladelpliia, 8, 1842, p.270, pi. 17, fig. 4.?Hall, Pal. NewYork, 1, 1847, p. 189, pi. 40A, figs. 3a-d,pi. 41, figs. la-c.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 167, pi. 5, fig.22; fig. 38.?Lesley, Geol. Surv. Penn.sylvania, Rep. P 4, 1889, p. 183, figs.Ecculiomplialus (?) trentonensis Hall, 12th Rep. New York State Cab. Nat. Hist.,1859, p. 68 (gen. ref.).Eccyliomphalus trentonensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p.184, pi. 12, figs. 20, 21.Trenton: Carlisle, Pennsylvania; Middleville, etc., New York; New Jersey.Eccyliomphalus triangulus Grabau and Shimer. See Eccyliopterus triangulus.Eccyliomphalus undulatus (Hall).Ecculiomphalus undulatus Hall, Rep. Geol. Siu-v. Wisconsin, 1861, p. 37.?Whit-field, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 63, pi. 8, figs. 1-3.Eccyliomphalus undulatus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 1036, pi. 75, figs. 19-23.?Grabau and Shimer, N. A. Index Fossils, 1, 1909,p. 663, fig. 916.Black River (Platteville): Minneapolis, Minnesota; Beloit, Wisconsin; La Salle,Illinois; ?Lebanon, Tennessee (Stones River).Plesiotypes.?Ca.t. Nos. 46054, 47927, U.S.N.M.ECCYLIOPTERUS Remele. Genotype: Eccyliomphalus alatus Roemer.Eccyliopterus Remele, Zeitsclir. deutsch. geol. Ges., Band, 40, 1888, p. 666. ? Koken, Neues Jahi'b. f. Min., Geol. Pal., 6, Beliage-Band, 1889, p. 318; DieLeitfossilien, Leipzig, 1896, p. 102; Bull, de I'Acad. Imp. Sci. St. Peters-btirg, 7, 1897, p. 174.?Uhrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,pp. 1029, 1031.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 658.Eccyliopterus beloltensis Ulrich and Scofield.Eccyliopterus beloitensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.1032, pi. 62, fig. 70; pi. 74, figs. 1-4.?Grabau and Shimer, N. A. IndexFossils, 1, 1909, p. 658, fig. 906c-e.Black River: Beloit, Wisconsin (PlatteAalle); High Bridge, Kentucky (Lowville).Holotypes.?Cat. No. 45799, U.S.N.M.Eccyliopterus disjunctus (Billings).Opliileta? disjuncta Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 344.fig. 331a, b.Eccyliopterus disjuncta Koken, Neues Jahrb. Min. Geol. Pal., 6, Beilage-Band,1889, p. 320 (gen. ref.).Canadian (Beekmantown): Leeds and Grenville Counties, Canada,EccYLioPTEKUs KALMi Raymond. See Eccyliomphalus kalmi. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 469Eccyllopterus? michleranus (Hall).Euomplialus michleranus Hall, Rep. U. S. Mexican Bound. Surv., Emory, 1857,pi. 20, fig. 4.Canadian (Beekmantown): Near El Paso, Texas.ffolotype?Cat. No. 9825, U.S.N.M.Eccyliopterus ottawaensis (Billings).OphUeta Ottawaensis Billings, Canadian Nat. Geol., 5, 1860, p. 166, figs. 9, 10;Geol. Canada, Geol. Siu-v. Canada, 1863, p. 180, fig. 173a., b.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1889, p. 500, figs.Eccyliopterus ottawaensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897,p. 937 (gen. ref.).Trenton: Ottawa, Ontario.Eccyliopterus owenanus (Meek and Worthen).Ophileta Owenana Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 313, pi. 3,fig. 6a, b.Eccyliopterus owenanus Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.1032, pi. 74, figs. 10-14.Eccyliopterus owenensis Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 658,fig. 906f, g.Trenton: Galena, Illinois (Galena); Wykoff, etc., Minnesota (Prosser).Plesiotypes.?C&t. No. 45800, 45801, U.S.N.M.Eccyliopterus proclivis Raymond. See Eccyliomphalus proclivis.Eccyliopterus spiralis Ruedemann.Eccyliopterus spiraUs Ruedemann, Bull. New York State Mus., 49, 1901, p. 34,pi. 2, figs. 9, 10.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.Eccyliopterus triangulus ("Whitfield).Ecculiomphalus triangulus Whitfield, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 29,pi. 1, figs. 5-9.?Sardeson, Jour. Geol., 11, 1903, p. 481, fig. 18.Eccyliomphalus triangulus Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.663, fig. 917.Eccyliopterus triangulus ULrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pi.74, figs. 5, 6; pi. 62, fig. 73.Canadian (Beekmantown): Providence Island, Lake Champlain, Vermont.Plesiotypes.?Cat. No. 45802, U.S.N.M.Eccyliopterus vagrans (Raymond).Helicotoma vagrans Raymond, Amer. Jour. Sci., 4th ser., 20, 1905, p. 376.Eccyliopterus vagrans Raymond, Ann. Carnegie Mus., 4, 1908, p. 204, pi, 49, figs.10-11.Chazyan (Crown Point): Valcour Island, New York.Eccyliopterus volutatus (WTiitfield).Ecculiomphalus volutatus Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 314,pi. 25, figs. 8-11.?Seely, Vermont State Geol., Rep. 7, 1910, pi. 59, figs. 8-10.Eccyliopterus volutatus Ulrich and Scofield, Geol, Minnesota, 3, pt, 2, 1897, pi.62, figs. 71, 72; pi. 74, figs. 7-9.Canadian (Beekmantown): Fort Cassin, Vermont.Plesiotypes.?Cat. No. 45803, U.S.N.M.EcHiNOCRiNUS PENESTRATUS Yandell. See Tetracyetia fenestratus.EcHiNOCYSTis Hall, See Lysocystitea Miller, 470 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.EcHiNOCYSTiTES Hall. See Lysocystitea Miller.EcHiNOENCRiNiTES ANATiFORMis Hall. See ChirocrinuB anatiformis,EcHiNOENCRiNiTES FENESTRATUS Troost. See Tetracystis fenestratus.ECHINOGNATHUS Walcott. Genotype: Eurypterus? Cleveland! Walcott.Echinognathus Walcott, Amer. Jour. Sci., 3dser., 23, 1882, p. 213.?Zittel, Handb.Pal., 2, 1885, p. 651.?Miller, N. A. Geol. Pal., 1889, p. 546.?Vogdes, AnnalsNew York Acad. Sci., 5, 1889, p. 18.?Clarke, Zittel-Eastman Textb. Pal., 1,1900, p. 676; 2d ed., 1913, p. 783.?Clarke and Ruedemann, Mem. New YorkState Mus., 14, 1912, p. 321.Echinorhynchua (in error for Echinognathus) Martin, Trans. New York Acad.Sci., 2, 1882, p. 8.Echinognathus clevelandl (Walcott).Eurypterus? clevelandi Walcott, Amer. Jour. Sci., 3d ser., 23, 1882, p. 153,figs. 1, 2.Eurypterus (Echinognathus) clevelandi Lamie, Trans. Royal Soc. Edinburgh,39, 1899, p. 587.Echinognathus clevelandi Walcott, Amer. Jour. Sci., 3d ser., 23, 1882, p. 213,figs. 1, 2.?Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p.322, pi. 58, figs. 1, 2.Utica: Holland Patent, Oneida County, New York.Cotypes.?C&t. No. 26785, U.S.N.M.EcHiNOEHYNCHUS Martin. See Echinognathus Walcott.EcHiNosPHiERA Angolin. See Echinosphserites Eichwald.ECHINOSPH^RITES Wahlanberg. Genotype: Echinus aurantium Gyllenhal.Echinospheerites Wahlenberg, Acta Soc. Sci. Upsala, 8, 1821, p. 52.?Eichwald,Zool. Specialis, pt. 1, Vilnae, 1829, p. 231.?MuUer, Ann. Mag. Nat. Hist.,2d ser., 13, 1854, p. 248.?Chapman, Canadian Jour., new ser., 2, 1857, p.303.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 302.?Hall, Pal. New York, 3,for 1859, 1861, p. 150.?Zittel, Handb. Pal., 1, 1879, p. 417.?Barrande andWaagen, Syst. Sil. Centre Boheme, 7, pt. 1, 1887, p. 150, pis. 16, 21-25, 39.?Jaekel, Stammes. Pelmat., 1, Thecoideau. Cyst., Berlin, 1899, p. 331.?Zittel-Eastman Textb. Pal., 1, 1900, p. 183.Echinosphsera Angelin, Icon. Criuiod., 1878, p. 28.?Haeckel, Amph. Cyst.Leipzig, 1896, p. 66, pi. 1, figs. 3-3E.?Bather, Treatise on Zool., pt. 3, Echin-oderma, London, 1900, p. 53, figs. 14, 15.?Springer, Zittel-Eastman Textb.Pal., 2d ed., 1913, p. 152.Echlnosphffirltes aurantium (Gyllenhal).Echinus aurantium Gyllenhal, Kong. Vet. Akad. Hand., 33, 1772, p. 245, pi. 8,figs. 4, 5; pi. 9, figs. 6-9.?Wahlenberg, Jour, de Physique, 91, 1820, p. 188.Echinosphserites aurantium Wahlenberg, Acta Soc. Sci. Upsala, 8, 1821, p. 52. ? Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 3, fig. 19; pi. 21, figa. 6-8.Sphseronites aui'antium Hisinger, Anteckninger, 4, 1828, pp. 195, 198.Echinosphsera aurantium Angelin, Iconog. Crin. Soc, 1878, p. 28, pi. 14, figs. 1-21.Cryetallocyatis aurantium Haeckel, Die Amph. und Cyst., 1896, p. 66, pi. 1, figa.3-3e.Middle Ordovician: Esthonia, Russia; Pennsylvania, Maryland, and Virginia(Chambersburg); Virginia and Tennessee (Ottosee); Tennessee (Carters);Missouri, etc. (Kimmswick).Plesiotypes.?C&t. No. 56631, U.S.N.M. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 471Echinus aurantium Wahlenberg. See Echinospliserites aurantium.Echinus gyracanthus Eaton. See Tentaciilites gyracanthus.ECTENOCRINUS Miller. Genotype: Hoterocrinus simplex Hall.Ectenocrinus Miller, N. A. Geol. Pal., 1889, p. 242.?Bather, Ann. Mag. Nat.Hist., 6th ser., 5, 1890, p. 324, pi. 14, fig. 7; pi. 15, fig. 7.?Wachsmuth andSpringer, Proc. Acad. Nat. Sci. Philadelphia, 1890, pp. 380, 383, 385.?Bather, Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893, p. 20; Treatise onZool., pt. 3, Echinoderma, London, 1900, p. 146, fig. 58, 3.?^Wachsmuth,Zittel-Eastman Textb. Pal., 1, 1900, p. 152.?Zittel, Grundzuge Pal., 1,1910, p. 151 .?Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 27; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 212.Ectenocrinus canadensis (Billings).Heterocrinus Canadensis Billings, Geol. Surv. Canada, Hep. Progr. for 1853-56,1857, p. 273; Geol. Surv. Canada, dec. 4, 1850, p. 48, pi. 4, figs. 5a-5d.Ectenocrinus canadensis Miller, N. A. Geol. Pal., 1889, p. 242 (gen. ref.). ? Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 22, pi. 4, fig. 10.Heterocrinites simplex Troost, Amer. Assoc. Adv. Sci., 1850, p. 60 (nom. nud.).Trenton: Ottawa and Montreal, Canada; Frankfort, Kentucky.Plesioty2^6.?Cat. No. 39921, XJ.S.N.M. (Troost's type of H. simplex.)Ectenocrinus grandis (Meek).Heterocrinus simplex var. grandis Meek, Geol. Surv. Ohio, Pal., 1843, p. 9, pi.1, figs. 7a-c; Cincinnati Quart. Jour. Sci., 1, Jan., 1874, p. 13.Ectenocrinus grandis Miller, N. A. Geol. Pal., 1889, p. 242, fig. 295.?Foerste,Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 124, pi. 1, figs. 8a-d.Heterocrinus simplex Hall (not Hall, 1847), 24th Rep. New York State Cab. Nat.Hist., 1872, pi. 5, fig. 11, 12.Eden and Lower Maysville: Cincinnati, Ohio, and vicinity.Trenton (Upper): Near Rogers Gap, Kentucky.Ectenocrinus simplex (Hall).Heterocrinus simplex Hall, Pal. New York, 1, 1847, p. 280, pi. 76, figs. 2a-d.?Billings, Geol. Surv. Canada, Rep. Prog., 1853-56, 1857, p. 271.?Meek,Geol. Surv. Ohio, Pal., 1, 1873, p. 7, pi. 1, figs. 4a, b, 5a, b.?Dyche, Science,20, 1892, p. 66; Jour. Cincinnati Soc. Nat. Hist., 15, 1892, p. 101.?Grabauand Shimer, N. A. Index Fossils, 2, 1910, p. 502, fig. 1814.Ectenocrinus simplex Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel-phia, 1880, p. 392, pi. 10, fig. 9.?Miller, N. A. Geol. Pal., 1889, p. 242, fig.296.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 720, pi.4, figs. 10, 10a.Ectenocrinus (Heterocrinus) simplex Wachsmuth and Springer, Proc. Acad. Nat.Sci. Philadelphia, 42, 1890, p. 379.Eden and Lower Maysville: Cincinnati, Ohio, and vicinity.ECTOMARIA Koken. Genotype: Murchisonia nieezkowskii Schmidt.Eunema (part) of Salter, Billings, Bigsby and Miller.Murchisonia (part) of Whitfield and other authors.Solenospira XJlrich, Geol. Minnesota, 3, pt. 2, 1897, pp. 959, 1021.?Grabau andShimer, N, A. Index Fossils, 1, 1909, p. 635 (Genotype: Eunema pagodaSalter).Ectomaria Koken, Bull. Acad. Imp. Sci. St. Petersburg, 5th ser., 7, No. 2, 1897,p. 201; Koken, Die Leitfossilien, 1896, p. 395; Neues Jahrb. fiir Min., Geol.und Pal., 1, 1898, p. 21.?Donald, Quart. Jour. Geol. Soc. London, 55, 1899, p.252. 472 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ectomaria adelina (Billings).Miirchisonia Adelina Billings, Pal. Fosa., 1, Geol. Surv. Canada, p. 232, fig. 217.Solenospira adelina Ulrlch, Geol. Minnesota, 3, pt. 2, 1897, p. 1021 (gen. ref.).Ectomaria adelina Donald, Quart. Jour. Geol. Soc. London, 55, 1899, p. 253 (gen.ref.).Canadian (Quebec-G): Cape Norman, Newfoundland.Ectomaria? extenuata (Hall).Murchisonia extenuata Hall, Pal. New York, 3, 1859, p. 298, pi. 54, figs. 15, 16.Solenospira? extenuatum Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p.176, pi. 16, fig. 7.Cayugan (Manlius): Schoharie and Onondaga Counties, New York.Upper Monroan (Lucas): Salt shaft, Detroit, Michigan.Ectomaria minuta (Hall).Murchisonia minuta Hall, Pal. New York, 3, 1859, p. 298, pi. 54, fig. 17.Solenospira minuta Grabau, Michigan Geol. Surv., Geol. Ser. 1, 1909, p. 175, pi.16, fig. 8.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 653.Cayugan (Manlius): Fayetteville, New York.Monroan: Monroe County (Raisin River) and Detroit, Michigan (Lucas).Ectomaria missisquoi (Billings).Murchisonia missisquoi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 307.Solenospira missisquoi ULrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1021 (^en. ref.).Ectomaria missisquoi Donald, Quart. Jour. Geol. Soc. LonJon, 55, 1899, p. 253(gen. ref.)Canadian (Beekmantown): Stanbridge, Quebec.Ectomaria pagoda (Salter).Eunema? pagoda Salter, Geol. Surv. Canada, Canadian Org. Rem., dec. 1, 1859,p. 30, pi. 6, fig. 5.Murchisonia pagoda Chamberlin, Geol. Wisconsin, 1, 1883, p. 157, fig.Solenospira pagoda Ulrich and Scofield, Geol. Minnesota 3, pt. 2, 1897, p. 1022,pi. 70, figs. 56-60.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 653,fig. 893d, e.Ectomaria pagoda Donald, Quart. Jour. Geol. Soc. London, 55, 1899, p. 253.Black River: Pauquettes Rapids, Ottawa River, Canada, and near Watertown,New York (Leray); Cannon Falls, Miimesota (Decorah); Beloit, Wisconsin(Platteville).Plesiotype.?Ca.t.No. 45997, U.S.N .M. (Ulrich and Scofield).Ectomaria pagoda occidentalis (Whiteaves).Solenospira pagoda var. occidentalis Wliiteavea, Pal, Fose., Geol. Surv. Canada,3, pt. 3, 1S97, p. 193.Ectomaria pagoda var. occidentalis Whiteaves, Geol. Surv. Canada, Pal. Fobs.,3, pt. 4, 1899, p. C44 (gen. ref.).Black River or Richmond: Little Black Island, Lake Winnipeg.Ectomaria prisca (Billings).Eunema prisca Eillings, C anadian Nat. and Geol., 4, 1859, p. 360, fig. 8, 1; Geol.Surv. Canada, 1S63, p. 119, fig. CO.Solenospira prisca Ulrich and Scofield, Geol. Minnesota, pt. 2, 1897, p. 1022,pi. 70, figs. 52-55.?Grabau and Shimor, N. A. Index Fossils, 1, 1909, p. 653,fig. 89: c.Ectomaria prisca Donald, Quart. Jour. Geol. Soc. London, 55, 1899, p. 253(gen. ref.) BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 473Ectomaria prisca?Continued.Murcliisonia (Eunema) pagoda Whitfield (not Salter), Geol. V/isconsin, 4, 1883,p. 218, pi. 5, fig. 20.Chazyan (Min^an): Mingan Islands, Canada.Black River: Beloit and Janesville, Wisconsin; Minneapolis, Minnesota; Dixon,Illinois.Plesiotype.?Cat. Nos. 4G072, 46073, U.S.N .M. (Ulricli and Scofield).Ectomaria prisca extenuata Ulrich.Solenospira prisca var. extenuata Ulricb., Geol. Minnesota, 3, pt. 2, 1897, p. 1022,pi. 70, figs. 52, 54.Stones River (Murfreesboro) : Murfreesboro, Tennessee.Eolotype.?C&t. No. 46074, U.S.N.M.EDMONDIA Koninck. Genotype: Isocardia unioniformis Phillips.Edmondia Koninck, Desc. Animaux Fossilcs, Liege, 1842-1844, p. GG.?King,Mon. Permian Fosa. England, Pal. Soc, 1850, p. 162.?Pictet, Traite de Pal.,2d ed., 3, 1855, p. 501.?Zittel, Handb. Pal., 2, 1881, p. 127.?Hall, Pal.New York, 5, pt. 1, Lam., 2, 1885, p. XXXII.?Koninck, Ann. d. Mus.Royal d'Hist. Nat. de Belgique, 11, 1885, p. 28.?Miller, N. A. Geol. Pal.,1889, p. 478.?Hind, Mon. British Carb. Lam., 1, Pal. Soc, 1898, p. 255.Edmondia?? arcuata Cleland.Edmondia(?) arcuata Cleland, Bull. Amer. Pal., 4, 1903, p. 18, pi. 4, figs. 5-7.Canadian? (Beekmantown?): Three miles soutli Ingham Mills, New York.Observation.?Probably a synonym for some species from the Stones River orhigher formation.Edmondia? deckerensls Weller.Edmondia? deckerensis Weller, Geol. Surv. New Jersey, Rep. Pal., 3, 1903, p.241, pi. 22, figs. 6-7.Helderbergian (Decker Ferry): Two miles south of Tristates, New York.Edmondia? nllesl Winchell and Marcy.Edmondia Nilesi Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p.97, pi. 2, fig. 13.Modiolopsia nilesi WTiitfield, Geol. Wisconsin, 4, 1882, p. 357 (gen. ref .).Niagaran (Racine); Chicago, Illinois; ^Viscon&in.Edmondia subangulata Hall. See Cyrtodonta subangulata.Edmondia subtruncata Hall. See Whitella subtruncata.Edmondia ventricosa Hall (part). See Whitella ventricosa.Edmondia? vetusta Whiteaves.Edmondia? vetusta Whiteaves, Geol Surv. Canada, Pal., Foss., 3, p, 187, pi. 20,fig. 8.Black River or Richmond: Inmost Island, Kinwow Bay, Lake Winnipeg.EDRIOASTER Billings. Genotype: Cyclaster bigsbyi Billings.Cyclastcr Billings (preoccupied), Geol. Surv. Canada, Rep. Progr. for 1853-1856,1857, p. 292; Geol. Surv. Canada, Canadian Org. Rem., dec. 3, 1858, p. 82.?Bather, Treatise on Zool. (Lankester), pt. 3, 1900, p. 323.?Zittel, Grund-zuge Pal., 1, 1910, p. 241. 474 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.EDRIOASTER?Continued.Edrioaster Billings, Geol. Surv. Canada, dec. 3, 1858, p. 82.?Zittel, Ilandb,Pal., 1, 1879, p. 414.?Sturtz, Neuea Jahrb. Min., Ceol. Pal., 2, 188C, p. 144.?Miller, N. A, Geol. Pal., 1889, p. 242.?Jaekel, Stammes. d. Pclznat, 1,Thecoidea u. Cyst., Berlin, 1899, p. 44.?Bat!:er, Treatise on Zool., pt. 3,Echinoderma, London, 1900, p. 209, fig. 6.?Zittel, Crundzuge Pal., 1, 1910,p. 181.Edriocystis Haeckel, Amph. und Cyst., Leipzig, 1896, p. 117.Edrioaster blgsbyi (Billings).Cyclaeter Bigsbyi Billings, Geol. Surv. Canada, Eep. Progr. for 1853-185G, 1857,p. 293.Agelacrinites (Edrioaster) Bigsbyi Chapman, Expos. Min. Geol., Canada, 1864,p. 110.?Sladen, Quart. Jour. Geol. Soc., 35, 1879, p. 750.Agelacrinus Bigsbyi Schmidt, Mem. Acad. St. Petersburg, 22, No. 11, 1874, 34.Edriocystis Bigsbyi Haeckel, Amph. u. Cyst., 189G, p. 118, pi. 3, figs. 35, 36.Edrioaster Bigsbyi Billings, Geol. Surv. Canada (Can. Org. Rem.), dec. 3, 1858,p. 85, pi. 8, figs. 1, la, 2, 2a.?Jaekel, Stammes. d. Pelmat., 1, Thecoidea u.Cyst., Berlin, 1899, p. 46, pi. 2, fig. 4.?Batliei, Treatise on Zool., pt. 3,Echinoderma, London, 1900, p. 209, fig. 6.?Springer, Mem. Geol. Surv.Canada, 15 P, 1911, p. 44 (loc. occ).Trenton: Ottawa and Kirkfield, Ontario; High Bridge, Kentucky (Curdaville);Fillmore County, Minnesota (Prosser.).Edrioaster saratogensis Ruedemann.Edrioaster saratogensis Ruedemann, Bull. New York State Mus., 162, 1912, p.86, pi. 3, figs. 2-4.Trenton (Snake Hill): Snake Hill, Saratoga County, New York.Edriocystis Haeckel. See Edrioaster Billings.EDRIOSPONGIA Ulrich and Everett. Genotype: E. basalis Ulrlch and Everett.Edriospongia Ulrich and Everett in Miller, N. A. Geol. Pal., 1889, p. 159.?Uhichand Everett, Geol. Surv. Illinois, 8, 1890, p. 271.Edriospongia basalis Ulrich and Everett.Edriospongia basalis Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 272, pi.C, figs. la-c.Black River (Platteville): Near Dixon, Illinois.Sections of holatype.?C&t. No. 46556, U.S.N .M.EicHWALDiA of authors. See Dictyonella Hall.EICHWALDIA Billings. Genotype: E. subtrigonalis Billings.Eichwaldia Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 190;Canadian Nat. Geol., 3, 1858, p. 442.?Schuchert, Bull. U. S. Geol. Surv.,87, 1897, p. 81; Zittel-Eastman Textb. Pal., 1, 1900, p. 312; ibid., 2d ed. 1913,p. 396.Eichwaldia subtrigonalis Billings.Eichwaldia subtrigonalis Billings, Geol. Surv. Canada; Rep. Progr. for 1857,1858, p. 192, fig. 24; Canadian Nat. Geol., 3, 1858, p. 443, fig. 24; Geol.Canada, 1863, p. 142. fig. 76.?Hall and Clarke, Pal. New York, 8, pt. 2,1893, p. 310, figs. 241, 242; pi. 83, figs. 1-4.Black River (Leray): Pauquette Rapids, Ottawa River, Canada. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 475ELKANIA Ford. Genotype: Obolclla desiderata Billings.Billinssia Ford (not Dekoninck, 1876), Amcr. Jour. Sci., 3d scr., 31, 1885, p. 4C6.Elkania Ford, Amer. Jour. Sci., 3d ser., 32, ISSG, p. 325.?Miller, N. A. Ceol.Pal., 18S9, p. 346.?Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 75,165; lltli Ann. Rep. New York State Geologist, 1894, p. 241.?Walcott, Proc.U. S. Nat. Mua., 28, 1905, p. 321.Elkania ambigua (Walcott).Obolella? ambigua Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 67, pi. 1, fig. 2,Billingsia? ambigua Ford, Amer. Jour. Sci., 3d ser., 31, 1886, p. 4G7.Elkania ambigua Ford, Amer. Jour. Sci., 32, 18S6, p. 325.?Hall and Clarke, Pal.New York, 8, pt. 1, 1892, p. 78.?Walcott, Mon. U. S. Geol. Surv., 51, 1912,p. 502, pi. 51, figs. 2, 2a-c.Lower Pogonip; Northeast of Adams Hill and southeast of Jackson Mine, EurekaDistrict, Eureka County, Nevada.Holotype and plesiotype.?Cat. No. 24554, U.S.N .M.Elkania desiderata (Billings).Obolella desiderata Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1SG2, p. 69, fig.62 on p. 68.?Davidson, Geol. Mag., 5, p. 309, figs. 1, 2.?Walcott, Bull. U. S.Geol. Surv., 30, p. 111.Billingsia desiderata Ford, Amer. Jour. Sci., 3d ser., 31, 1886, p. 466, figs. 1, 2.Elkania desiderata Ford, Amer. Jour. Sci., 32, 1886, p. 325.?Hall and Clarke,Pal. New York, 8, pt. 1, 1892, p. 77, pi. 3, figs. 15-19; lltli Ann. Rep. StateGeol. New York, 1892, pi. 3, figs. 13-14.?Scliucliert, Bull. U. S. Geol. Surv.,87, 1897, p. 221.?Walcott, Mon. XJ. S. Geol. Surv., 51, 1912, p. 562, pi. 51,figs. 1, la-d.Canadian (Levis, Didymograptus zone): Point Levis, Quebec.Elkania Ida (Billings).Obolella ida Billings, Pal. Fossils, Geol. Surv. Canada, 1, 1865, p. 71, fig. 63(adv. sheets, 1862.)?Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 111.?Dawson, Canadian Rec.Sci., 3, 1888, p. 55; Peter Redpath Mue., McGill Univ., 1888, p. 55.Billingsia? ida Ford, Amer. Jour. Sci., 3d ser., 31, 1886, p. 467.Elkania ida Ford, Amer. Jour. Sci., 32, 1886, p. 325 (gen. ref.).?^Walcott, Mon.U. S. Geol. Surv., 51, 1912, p. 563, pi. 30, figs. 20, 20a; pi. 51, figs. 4, 4aH:.Ozarkian? (Levis-erratics) : Point Levis, Quebec.Elkantia puetiosa Ford. See Acrothete pretiosa.Elliptocephala undulostriata Miller. See Proetus undulostriatua.ELPE Barrande. Genotype: E. inchoata Barrande.Elpe Barrande, Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 510.?Zittel,Handb. Pal., 2, 1885, p. 554.?Ukich, Zittel-Eastman Textb. Pal., 1, 1900,p. 646.?Bassler, ibid, 2d ed., 1913, p. 741.Leioditia (Ulrich MS.) Jones, Geol. Sujv. Canada, Cont. Micro-Pal., 3, 1891, p. 94.Elpe cincinnatlensis (Meek).Cythere Cincinnatlensis Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 331;Geol. Surv. Ohio, Pal., 1, 1873, p. 158, pi. 14, figs, la-d.?Miller, CincinnatiQuart. Jour. Sci., 1, 1874, p. 120.?Jones, Ann. Mag. Nat. Hist., 5th ser., 14,1884, p. 395, footnote.Cytheropsia cincinnatiensis Miller, N. A. Geol. Pal., 1889, p. 541, fig. 993.Maysville (Corryville): Cincinnati, Ohio, and vicinity. 476 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Elpe irregularis (Miller).Cythere irresularis Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 106, pi. 3,figs. 7, 7a.Cytheropsis irregiilaris Miller, N. A. Geol. Pal., 1889, p. 541 (gen. ref.).MaysvUle (Corryville) : Ciaciunati, Ohio, and vicinity.Elpe radiata (Ulrich).Leperditia radiata Ulricli, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 9, pi. 7,figs. 2-2b.Eden (Fulton): First Ward, Cincinnati, Ohio.Cotypes.?Csit. No. 41711, U.S.N.M.Elpe ulrichl Foerste.Elpe Ulriclii Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 532, pi. 37, figs. 14a-c.Upper Medinan (Brassfield): Huffman's Quarry, near Dayton, Ohio.EMMELEZOE Jones and Woodward. Genotype: Ceratiocaris elliptica Jones.Emmelezoe Jones and Woodward, Mon. British Pal. Phyllopoda, Pal. Soc, 1888,pp. 3, 68.?Clarke, Zittel-Eastman Textb. Pal., 1, 1900, p. 657; 2d ed., 1913,p. 752.Emmelezoe decora Clarke.Emmelezoe decora Clarke, 54th Ann. Rep. New York State Mus., App. 1, 1902,p. 95, pi. 2, figs. 4-11; pi. 3, figs. 1^.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 379, fig. 1683.Cayugan (Pittsford): Erie Canal, Monroe County, New York.Emmonsia Edwards and Haime. See Favosites Lamarck.EMPEROCRINUS Miller and Gurley. Genotype: E. indianensis Miller and Gurley.Emperocrinus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 6, 1895,p. 42.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 744.?Bather, Treatise onZool. (Lankester), pt. 3, 1900, p. 202.Emperocrinus indianensis Miller and Gurley.Emperocrinus indianensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist.,6, 1895, p. 43, pi. 4, figs. 16, 17.?Miller, N. A. Geol. Pal., 2d App., p. 744,figs. 1347, 1348.Niagaran (Laurel): St. Paul, Indiana.Enallopora D'Orbigny. Genotype: Gorgonia perantiqua Hall.Enallopora D'Orbigny, Prod, de Pal., 1, 1850, p. 22.?Emmons, Amer. Geology,1, pt. 2, 1855, p. 206.?Pictct, Trait6 de Pal., 2d ed., 4, 1857, p. 169.?Miller,N. A. Geol. Pal., 1889, p. 300.Observations.?For objections to the use of this name, see Geol. Surv. Illinois,8, p. 683.Enallopora cinctosa Miller. See Mitoclema cinctosum.Enallopora perantiqua D'Orbigny. See Protocrisina perantiqua.Encrinaster Haeckel (part). See Protaster Forbes.ENCRINURUS Emmrich. Genotype: Trilobus punctatus Brunn.Cryptonymus Eichwald, (not Eichwald, 1825), Sil. Schichten Syst., Esthland,1840.?Salter, Mon. British Tril., Pal. Soc, 1866, pp. 147, 168.?Angelin,Pal. Scandinavica, 3d ed., Holmise, 1878, p. 2. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 477ENCRINURUS?Continued.Encrinurus Emmrich, Znr. Natg. der Tril., 1844, p. 16; Neues Jalirb. f. Min., etc.,1845, p. 42.?Hawle and Corda, Abh. d. k. bohmischen Gesell. d. "Wiss., 5(ext.), 1847, p. 90, pi. 5, fig. 55.?Barrande, Neues Jahrb. f. Min., etc., 1850,p. 778.?Salter, Mem. Geol. Surv. United Kingdom, dec. 3, 1853, pi. 4.?McCoy, British Pal. Rocks Fossils, 1854, p. 158.?Pictet, Traite de Pal., 2ded., 2, 1854, p. 523.?Nieszkowski, Arcliiv. f. Naturk. Liv-, Ehst- u. Kurl.,1, 1857; p. 602.?Steinhardt, Beit. z. Natiu-k. Preus. Phys.-Ockon Gesell.Konigsberg, 1874, p. 57.?Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg,7th ser., 30, 1881, p. 222.?Zittel, Handb. Pal., 2, 1885, p. 621.?Novak, Sitz.d. k. bohm. Gesell. d. Wiss. Math. Naturw. CI. for 1886, p. 429.?Miller, N. A.Geol. Pal., 1889, p. 547.?Koken, Die Leitfossilien, Leipzig, p. 36, 1896, fig.24, figs. 5, 6.?Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 105, pi. 3, fig.25.?Jaekel, Zeits. d. d. geol. Gesell., 53, 1901, p. 149.?Grabau, Bull. NewYork State Mus., 45, 1901, p. 225; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p.225.?Lindstrom, Kongl. Sven. Vet. Akad. Ilandl., 34, No. 8, 1901, p. 26,56.?Vogdes, San Diego Soc. Nat. Hist., 1907, p. 61.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 314.?Slocom, Field Mus. Nat. Hist., Geol,Ser., 4, 1913, p. 61.?Raymond, Zittel-Eastman Textb. Pal., 1913, p. 723.Cromus Barrande, Syst. Sil. du Centre Boheme, 1, 1852, p. 821, pi. 43.?Zittel,Handb. Pal., 2, 1885, p. 621.?Koken, Die Leitfossilien, Leipzig, 1896, p.36.?Jaekel, Zeits. d. d. geol. Gesell., 53, 1901, p. 156.?Lindstrom, Kongl.Sven. Vet. Akad. Handl., 34, No. 8, 1901, p. 11.?Pictet, Traite de Pal.,2d ed., 2, 1854, p. 523.?Barrande, Syst. Sil. du Centre Boheme, Suppl., 1,1872, p. 20.Encrinurus americanus Vogdes.Encrinurus americanus Vogdes, Desc. New Crust. Clinton of Georgia, 1886, p. 1. ? Foerste, Bull. Sci. Lab. Denison Univ., 2, 1SS7, p. 102.Clinton: Taylors Ridge, west of Catoosa Station, Georgia.Encrinurus cristatus Clarke.Encrinurus cristatus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 741, fig. 58.Richmond (Maquoketa): Spring Valley, Minnesota.Eolotype.?Cat. No. 41953, U.S.N.M.Encrinurus deltoldeus Shumard.Encrinurus deltoideus Shumard, 1st and 2d Ann. Rep. Geol. Surv. Missouri, pt.2, 1855, p. 198, pi. B, fig. 10.?Foerste, Bull. Sci. Lab. Denison Univ., 2, pt.1, 1887, p. 102.?Keyes, Missouri Geol. Surv., 4, 1894, p. 229.?Savage, Bull.Geol. Surv., Illinois, 23, 1913, p. 60, pi. 2, fig. 10.Cryptonymus deltoideus Vogdes, Mon. Genera Zethus, Cybele, Encriniuus andCryptonymus, 1878, p. 21.Upper Medinan (Girardeau): Near Thebes, Illinois.Encrinurus egani Miller.Encrinurus egani Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 254, pi. 15,figs. 1, lb; N. A. Geol. Pal., 1889, p. 547, fig^. 1004-5.?Weller, Bull. Chicago,Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 257, pi. 24, figs. 8-11.Niagaran (Racine): Joliet and near Lemont, Illinois.Encrinurus elegantulus Billings.Encrinurus elegantulus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, p. 62.?Foerste, Bull. Sci. Lab. Denison Univ., 2, pt. 1, 1887, p. 102.Anticostian (Jupiter River): The Jumpers, Anticosti. 478 BULLETIN" 92; UNITED STATES NATIONAL MUSEUM.Encrintjrus excedkinus Safford. See Encrinnrus raricostatus.Encrinurus indianensis Kindle and Breger.Encrinurus indianensia Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res.,Indiana, 1904, p. 482, pi. 24, figs. 14, 15.Niagaran (Noblesville): Connors Mill, Huntington, Wabash, etc., Indiana.Encrinurus laevis (Angelin).Cryptonymus laevis Angelin, Pal. Scand., pt. 1, p. 4, pi. 4, fig. 10.Encrinurus (Cryptonymus) laevis Salter, Sutherland's Jour. Voyage in BafiinaBay, etc., 2, App., 1852, p. 221, pi. 5, figs. 14, 14a.Encrinurus laevis Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 592.Cromus arcticus Houghton, Jour. Geol. Soc. Dublin, 1, 1857, p. 241, pi. 6, figs. 1-5.Niagaran: Griflaths Island, etc., Arctic America.Encrinurus mirus Billings. See Cybeloides mirus.Encrinurus multisegmentatus (?Portlock) Billings.Ampliion multisegmentatus Portlock, Geol. Londonderry, 1843, p. 291, pi. 3, fig. 6.Encrinurus multisegmentatus Billings, Cat. Gil. Foss. Anticosti, Geol. Surv.Canada, 1SG6, p. 61 (loc. ref.).?Salter, Mem. Geol. Surv. United Kingdom,decade 7, pi. 4.Cryptonymus multisegmentatus Vogdes, Mon. Genera Zethus, etc., 1878, p. 29.Richmond (English Head and Ellis Bay): Junction Cliff, Anticosti.Encrinurus nereus Hall.Encrinurus sp. Hall, adv. sheets, 18th Rep. New York State Cab. Nat. Hist.,1865, p. 30; 20th Rep. New York State Cab. Nat. Hist., 1867, p. 334.Encrinurus nereus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p.375, pi. 21, fig. 15; rev. ed., 1870, p. 425, pi. 21, fig. 15.?Foerste, Bull. Sci.Lab. Denison Univ., 2, 1887, p. 102.Cryptonymus nereus Vogdes, Mon. Gen. Zethus, Cybele, etc., 1878, p. 24, pi. 3,fig. 17.Niagaran (Racine): Racine, Wisconsin.Encrinurus ornatus Hall and Whitfield.Cybele punctata Hall (not Brunnich), Pal. New York, 2, 1852, p. 297, pi. 66A,figs. la-1.Encrinurus punctatus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 61 (loc. ref.).?Foerste, Bull. Sci. Lab. Denison Univ., 2, 1897, p. 103;Proc. Boston Soc. Nat. Hist., 24, 1890, p. 269.?Van Ingen, School ?f MinesQuart., 1901, p. 66, pi. fig. 27.Encrinurus cfr. punctatus Norton, Proc. Iowa Acad. Sci., 3, 1896, p. 79.Encrinurus ornatus Hall and "Wliitfield, Pal. Ohio, 2, 1875, p. 154, pi. 6, fig. 16.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 195, fig.?Foerste, Bull. Sci. Lab.Denison Univ., 2, 1887, p. 102.?Grabau, Bull. New York State Mus., 45, 1901,p. 225, fig. 157; Bull. Buffalo Soc. Nat. Hist., 7, p. 225, fig. 157.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 314, fig. 1627.Crj'ptonymus ornatus Vogdes, Mon. Gen. Zethus, Cybele, etc., 1878, p. 23.Niagaran (Clinton-Guelph): Eaton and Yellow Springs, Ohio; New York; Canada;Arkansas; Tennessee; Alabama.Encrinurus pernodosus Slocom.Encrinurus pernodosus Slocom, Field Mus. Nat. Hist., Geol. Ser., 4, No. 3, 1913,p. 61, pi. 16, figs. 5-7.Richmond (Maquoketa): Bloomfield, Clermont, and Elgin, Iowa. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 479Encrinurus punctatus Foerste. See Encrinurus thresheri and E. omatus.Encrinurus raricostatus Walcott.Encrinmiis excedrinus Safford, Geol. Tennessee, 1869, p. 290 (nom. mid.)-Encrinurus raricostatus Walcott, 31st Rep. New York State Mus. Nat. Hist., 1880(adv. sheets, 1877), p. 69.?Safford and Vogdes, Proc. Acad. Nat. Sci.Philadelphia, 1889, p. 167, text fig.?Clarke, Geol. Minnesota, 3, pt. 2, 1890,p. 740.?Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 128.Cryptonymus raricostatus Vogdes, Mon. Genera Zethus, etc., 1878, p. 27.Black River: Mineral Point, Beloit, and Janesvllle, Wisconsin (Platteville);Manitoba.Encrinurus rarus (Walcott).Ceraurus rarua W^alcott, 3l8t Rep. New York State Mus. Nat. Hist., 1880 (adv.sheets, 1877), p. 68.Ceraurus (Cyrtometopus) rarus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 738.Encrinurus rarus Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p. 541,pi. 2, fig. 3.Black River (Platteville): Beloit, Wisconsin.Observation.?See E. vannulus Clarke.Encrinurus thresher! Foerste.Encrinurus thresheri Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 101,pi. 8, fig. 26.Encrinurus punctatus Foerste, Geol. Surv. Ohio, 7, 1893, p. 531, pi. 27, fig. 26.Upper Medinan (Brassfield): Dayton, Ohio; Hanover, Indiana.Encrinurus trentonensis Walcott.Encrinums trentonensis Walcott, 31st Rep. New York State Mua. Nat. Hist., 1880(adv. sheets, 1877), p. 68.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p.202, pi. 15, figs. 26, 27.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p,314.Cryptonymus trentonensis Vogdes, Mon. Genera Zethus, etc., 1878, p. 28.Black River: Clifton, W'isconsin; Dunleith, Illinois.Trenton: Jacksonburg, New Jersey.Encrinurus tuberculifrons Weller.Encrinurus tuberculifrons Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 2, 1907, p. 259, pi. 24, figs. 12-13.Niagaran (Racine): Near Joliet, IlUnois.Encrinurus tuborculosus Collie.Encrinurus tuberculosis Collie, Br.ll. Geol. Soc. Amer., 14, 1903, p. 418, pi. 59, fig. 3.Trenton: Beliefonte, Pennsylvania.Encrinurus vannulus Clarke.Encrinums vannulus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 739, figs. 56, 57.Black River (Platteville): Janesville and Beloit, Wisconsin.Cofype.?Cat. No. 41954, U.S.N.M.Observation.?Probably the same as E. rarus Walcott.Encrinurus vigilans (Hall).Ceraurus vigilans Hall, Pal. New York, 1, 1847, p. 245, pi. 65, figs. 2a-h.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 217, pi. 15, figs. 2a-c.Cryptonymus vigilans Vogdes, Mon. Genera Zethus, etc., 1878, p. 29, pi. 2, figs.2a-2h. 480 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Encrinurus vigilans?Continued.Encrinurus vigilans Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 952 (gen.ref.).?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 216, figs.Cybele vigilans Hall, 12tli Rep. New York State Cab. Nat. Hist., 1859, p. 67 (gen.ref.).Trenton: Middleville, etc., New York.Encrinus curvatus Eaton.Encrinus curvatus Eaton, Geol. Textb., 2d ed., 1832, p. 128, pi. 1, fig. 4.Ordovician: Glens Falls, New York.Observation.?Species based on a crinoid column.Encrinus giganteus Eaton. See Artbropliycus alleghaniensis.Encrinus transversus Eaton. See Phytopsis tubulosa.ENDOCERAS Hall. Accepted genotype: E. protciforme Hall.Endoceras Hall, Amer. Jour. Sci. Arts, 47, 1844, p. 109; Pal. New York, 1, 1847,p. 58, p. 207 footnote.?Roemer, Neues Jalirb. f. Min., etc., 1848, p. 178.?Wood-ward, Man. MoUusca, pt. 1, 1851, p. 89, fig. 50 on p. 90.?Saemann, Palaeonto-graphica, 3, 1852, pp. 147, 155, 157, 102.?Pictet, Traits de Pal., 2d ed., 2,1854, p. 641.?Emmons, Amer. Geol., 1, pt. 2, 1855, pp. 148, 151.?Barrande,Bull. Soc. Geol. France, 2d, 12, 1855, p. 172; Neues Jahrb. f. Min., etc., 1855,p. 274, pi. 3, figs. 16, 71, p. 385.?Salter, Quart. Jour. Geol. Soc. London, 15,1859, p. 376, fig. b.?Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 68.?Hitchcock, Geol. Vermont, 1, for 1861, 1862, p. 299.?Chapman, Cana-dian, Jour., n. s., 8, 1863, p. 21; Expos. Min. Geol. Canada, 1804, p. 129.?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 773.?Miller, Cincin-nati Quart. Jour. Sci., 2, 1875, p. 130.?Barrande, Cephalopodes, Ext. Syst.Sil. du Centre Boheme, p. 103.?Whitfield, Bull. Amer. Mus. Nat. Hist., 1,1881, pp. 20, 23, fig. l;Geol. Wisconsin, 4, 1882, p. 228.?Miller, Jour. CincinnatiSoc. Nat. Hist., 5, 1882, p. 85.?Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883,p. 266.?Zittel, Handb. Pal., 2, 1884, p. 362.?Holm, Palajont. Abhandl.,Dames and Kayser, Bd. 3, Heft 2, 1885, pp. 4, 11.?Foord, Cat. Foss. Ceph.British Mus., 1, 1888, p. 129.?Miller, N. A. Geol. Pal., 1889, p. 430.?Hyatt,Amer. Geol., 16, 1895, July, p. 1.?Koken, Die Leitfossilien, Leipzig, 1896, p.48, fig. 30.?Holm, Geol. Foren Stockholm Forhandl., 18, 1896, p. 395; Sver-iges Geol. Unders., ser. C, No. 163, 1S96, p. 3.?Hyatt, Zittel-Eastman Textb.Pal., 1, 1900, p. 514; 2d ed., 1913, p. 595.?Ruedemann, Amer. Geol., 31, 1903,p. 214; Bull. New York State Mus., 90, 1906, pp. 404, 418.?Cumings, 32dAnn Rep. Dep. Geol. Nat. Res., Indiana, 1908, p. 1026.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 41.Diploceras Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1847, p. 207.?Whitfield,Geol. Wisconsin, 4, 1882, p. 228 (Genotype: D. vanuxemi Conrad).Cj clendoceras Grabau and Sliimer, N. A. Index Fossils, 2, 1910, p. 43.Colpoceras Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850, p. 181;doc. ed., p. 174.?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p.783.?Miller, N. A. Geol. Pal., 1889, p. 432 (Genotype: C. virgatum Hall).Obsei-vation.?The generic relations of the species here referred to Endocerasand also to Cameroceras are in many cases still to be investigated.Endoceras angusticameratum Hall.Endoceras angusticameratum Hall, Pal. New York, 1847, p. 218, pi. 51, fig. 3.Trenton: Middleville, New York. BIBLIOGBAPHIC LIST OF GENERA AND SPECIES. 481Endocoras aunulatum Uall.EndoceraHaimulatumHall, Pal. New York, 1, 1847, j). 207, pi. 44, figB.la, b; Amer.Geol., 1, pt. 2, 1855, p. 152.?James, J. F., Jour. Cincinnati Soc. Nat. Hist.,8, 188G, p. 243.Endoceras anmilatum var. Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4,1892, p. 77, pi. 5, figs. 1, la; Pal. Fosa., Geol. Surv. Canada, 3, pt. 3, 1897,p. 202.Cyclendoceras annulatum Grabaii and Sliimer, N. A. Index F'ossils, 2, 1910, p.43, fig. 1241.Trenton: Watertown, New York; Lake Winnepeg, Canada.Endoceras approximatum Hall. See Cameroceras approximatum.Endoceras arctlventruni Hall.Endoceras arctiventrum Hall, Pal. New York, 1, 1847, p. 217, pi. 51, figs. 2a, b.Trenton: Middleville, New York.Endoceras arcuatum (J. F. James).Colpoceras arcuatum James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p.242, pi. 4, figs, la, b.Maysville: Cincinnati, Ohio.Observation.?Recognizable? Refers merely to sipliuncle of some Endoceras.Endoceras atlanticum (Barrande).Orthoceras atlanticum Barrande, Syst. Sil. du Boheme, ser. 4, 2, 1870, pi. 430,figs. 12, 13.Ordo\dcian: Newfoundland.Endoceras aulema Miller. See Nanno aulema.Endoceras bristolense Miller.Endoceras bristolense Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 85, pi.4, figs. 2, 2a.Richmond (Maquoketa): Bristol, Illinois.Endoceras(?) champlalnense Ruedemann.Endoceraa(?) champlalnense Ruedemann, Bull. New York State Mus., 90, 1906,p. 418, pi. 1, figs. 1-4, text fig. 5.Canadian (Beekmantown): Near Beekmantown, New York.Observation.?Compare Endoceras consuetum Sardeson.Endoceras clarkei (Wetherby).Colpoceras clarkei Wetherby, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 77,pi. 2, figs. 5, 5a.Colpoceras clarkii Miller, N. A. Geol. Pal., 1889, p. 432, fig. 727.Trenton (Curdsville) : Mercer County, Kentucky.Endoceras consuetum Sardeson.Endoceras consuetum Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 103,pi. 6, fig. 11.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 42.Canadian (Shakopee): Near Monroe and near Pickett Station, Wisconsin.Observation?Compare Endoceras champlalnense Ruedemann.Endoceras crassisiphonatum Whiteaves. See Narthecoceras crassisiphonatum.Endoceras distans Hall. See Actinoceras distans.Endoceras duplicatum Hall. See Cameroceras duplicatum.84243??Bull. 1>2?1;3 31 482 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Endoceras eganl Miller.Endoceras egani Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 84, pi. 4,figs. 1, la, lb.Richmond (Maquoketa): Bristol, Illinoia.Endoceras elongatum Keyes. See Endoceras proteiforme elongatixm.Endoceras gemelliparum Hall.Endoceras gemelliparum Hall, Pal. New York, 1, 1847, p. CO, pi. 19, figH. la, b. ? Barrande, Neues Jahrb. f. Min., etc., 1855, p. 267; Bull. Soc. Geol. France,(2), 12, 1855, p. 166.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 152.Black River: Hendersons Bay, Jefferson County, New York.Endoceras hennepini Miller, See Cameroceras bennepini.Endoceras(?) hiidsonl Ruedemann.Endocera8(?) hudaoni Ruedemann, Bull. New York State Mua., 90, 190G, p. 421,pi. 7, fig. 1, fig. 6.Cbazyan (Valcour): Valcour Island, New York.Endoceras hudsonicum Parks.Endocerashudsonicum Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 37.Niagaran (Guelph); Severn River, Ontario.Endoceras in^quabile Miller. See Cameroceras insequabile,Endoceras iusulare (Barrande).Ortboceras insulare Barrande, Syst. Sil. du Bobeme, 4tb ser., 2, 1870, pi. 430,figs. 1-11; pi. 31, figs. 1-10.Ordovician: Newfoundland.Endoceras lattventrum Hall. See Cameroceras lativentrum.Endoceras longissimum Hall. See Vaginoceras longissimum.Endoceras magister Ruedemann.Endoceras magister Ruedemann, Bull. New York State Miis., 90, 1906, p. 423,pi. 8, fig. 1, fig. 7.Cbazyan (Valcour): Valcour, New York.Endoceras magniTentrum Hall.Endoceras magniventrum Hall, Pal. New York, 1, 1847, p. 218, pi. 53, figs, la-e;pi. 54, fig. 2b.?Barrande, Neues Jabrb. f. Min., etc., 1855, p. 267; Bull.Soc. Geol. France, 2d ser., 1855, p. 166.?James, J. F., Jour. Cincinnati Soc.Nat. Hist., 8, 1886, p. 243.?Foord, Cat. Foss. Ceph. Britisb I^Ius., 1, 1888,p. 154.Trenton: Middleville, New York.Endoceras marcoui Barrande. See Cameroceras marcoui.Endoceras montrealense (Billings).Ortboceras montrealensis Billings, Can. Nat. Geol., 4, 1859, pp. 361-363, figs,llc-e; Geol. Canada, Geol. Surv. Canada, 1863, p. 121, figs. 37a-c?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 552, figs.?Wliitfield, Bull.Amer. Mus. Nat. Hist., 3, 1890, p. 34.Endoceras montrealense Hall, Pal. New York, 5, pt. 2, 1879, p. 221 (gen. ref.).?Ruedemann, Bull. New York State Mus., 90, 1906, p. 424, pi. 9, fig. 8, fig. 8.?Grabau and Sbimer, N. A. Index Fossils, 2, 1910, p. 42, fig. 1238.Ortboceras sordidum Wliitfield, Bull. Amer. Mus. Nat. Hist., 3, p. 34, pi. 2, fig. 4.Canadian (Beekmantown) : Near St. Eustache, Quebec; Fort Cassin, Vermont. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 483Endoceras multitubulatum (Hall). See Vaginoceras multitubiilatum.Endoceras? ommaneyi Salter.Orthocerag Ommaneyi Salter, App. to Sutherland's Jour. Voyage in Baffin Bay,etc., 1852, p. 222, pi. 5, figs. 16, 17; in Sutherland, Quart. Jour. Geol. Soc,9, p. 314.?Haughton, Jour. Roy. Dublin Soc, 1, 1858, p. 249; in McClintock's"Discovery of the Fate of Franklin and his Companions" App. 4, 1859, p. 381.Endoceras? ommaneyi Foord, Cat. Foss. Ccph. Britisli ^lus., pt. 1, 1888, p. 155.Niagaran: Assistance Bay, Cornwallis Island, Arctic America.Endoceras proteiforme Hall.Endoceras proteiforme Hall, Pal. New York, 1, 1847, p. 208, pis. 46, figs, la-b, 2;48, figs. 1, 4; 49, figs, la-e; 50, figs. 1-3; 52, la-b; 53, figs, la-c; 55, fig.1, p. 311, 85, figs, la-f.?Gebhard, 9th Rep. New York State Cab. Nat.Hist. 1856, p. 45.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 151, pi. 16,figs. l-3a, pi. 12, figs. 1-5; Man. Geol. 1860, p. 96, fig. 85.?Hitchcock, Geol.Vermont, 1, 1862, p. 299; ibid., 2, pi. 12, fig. 1.?Chapman, Canadian Jour.,n. 8., 8, 1863, p. 21, fig. 131, p. 200, fig. 194; Expos. Min. Geol. Canada, 1864,p. 129, fig. 131, p. 172, fig. 194.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2,1876, p. 37, fig. 12c.?^Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 130.?Emerson, Narrative Hall's Sec. Arctic Exped., U. S. Navy Dep., 1879,p. 579.?Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 86, pi. 12, figs. 1, la-c.?Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 153.?James, J. F., Jour.Cincinnati Soc. Nat. Hist., 8, 1886, p. 243.?Hyatt, Zittel-Eastman, Texb.Pal., 1900, p. 515, fig. 1056.?Ruedemann Bull. New York State Mus., 90,1906, p. 413, fig. 3.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 1029, pi. 50, figs. 1-ld.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 42, fig. 1239, 1240.Caraeroceras proteiforme Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 777, pi. 48,figs. 1, 2; pi. 49, fig. 2; pi. 50, figs. 1, 2 (?3j; pi. 51, figs. 1-3; pi. 53, figa.4-5.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 169.?Weller, Geol.Surv. New Jersey, Pal. 3, 1903, p. 190, pi. 13, fig. 5.?Clarke and Ruedemann,Bull. New York State Mus., 65, 1903, p. 580.Trenton: Middleville, Lowville, Watertown, etc.. New York. The species hasbeen identified from almost all the Mohawkian and Cincinnatian formationsof the United States and Canada.Plesiotyjye.?Cat. No. 17401, U.S.N.M. (Walcott, 1884).Observation.?The above references undoubtedly include a variety of forms.Endoceras proteiforme elongatum Hall.Endoceras proteiforme? var. elongatum Hall, Pal. New York, 1, 1847, p. 216,pi. 52, figs, la, b.Endoceras elongatum Keyes, Missouri Geol. Surv., 5, 1894, p. 220.Cameroceras proteiforme var. elongatum, Clarke and Ruedemann, Bull. NewYork State Mus., 65, 1903, p. 580 (gen. ref.)Trenton: Middleville, New York.Endoceras proteiforme var. lineolatum Hall. See Orthoceras lineolatum.Endoceras protelformo strangulatum Hall.Endoceras proteiforme var. strangulatum Hall, Pal. New York, 1, 1847, p. 212,pi. 46, figs. 4a-e.Trenton: Middle\'ille, New York.Endoceras proteiforme var. tenuistriatum Hall. See Orthoceraa tenuistriatum.Endoceras proteiforme var. tenuitextum Hall. See Orthoceras tenuitextum. 484 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Endoceras rapax Billings,Orthoceras rapax Billings, Canadian Nat. Geol., 5, 1860, p. 176.Endoceras rapax Miller, N. A. Geol. Pal., 1889, p. 437 (gen. ref.).Black River: Kingston, Ontario.Endoceras rottermundl (Barrande).Orthoceraa (Endoceras) rottermimdi Barrande, Syat. Sil. du Boheme, 2d eer.,1866, pi. 220.Endoceras rottermundi Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874,p. 749, pi. 220, figs. 9-11.?Foord, Cat. Fobs. Ceph. British Mus., 1, 1888,p. 151.Black River: Island in Lake Huron (?Tlie8salon Island).Endoceras (Narthecoceras) Simpsoni Wliiteaves. See Narthecoceras simpsoni.Endoceras subannulatum (WMtfield).Endoceras (Cameroceras) subannulatum Whitfield, Ann. Rep. for 1879, Wisconsin,Geol. Surv., 1880, p. 56; Geol. Wisconsin, 4, 1882, p. 230, pi. 7, figs. 15, 16.Endoceras subannulatum Chamberlin, Geol. Wisconsin, 1, 1883, p. 159, fig. ? Wliiteaves, Trans. Royal Soc. Canada, 9, sec. 4, 1892, p. 78, pi. 5, figs. 2, 2a;Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 202.Black River: Beloit, Wisconsin; Valley of Red River, western shore of LakeWinnipeg, East Selkirk, etc., Canada.Endoceras subcentrale Hall.Endoceras subcentrale Hall, Pal. New York, 1, 1847, p. 59, pi. 17, fig. 4.?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 152.?James, J. F., Jour. Cincinnati Soc. Nat.Hist., 8, 1886, p. 244.Black River (Watertown): Watertown, New York.Endoceras vanuxemi (Conrad).Diploceras Vanuxemi Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1848, p. 267,pl. 16, fig. 2.Endoceras vanuxemi Miller, N. A. Geol. Pal., 1899, p. 437 (gen. ref.).Trenton: Trenton Falls, New York.Observation.?Clarke (Geol. Minnesota, 3, 1897) says Diploceras is unques-tionably a Cameroceras and the type D. vanuxemi probably the same asEndoceras proteiforme.Endoceras virgatum (Hall).Colpoceras virgatum Hall, 3d Rep. New York State Cab. Nat. Hist., rev. ed., 1850,p. 182, pl. 5, fig. 2 (doc. ed., p. 174).Endoceras virgatum Hall, Pal. New York, 5, pt. 2, 1879, p. 220 (gen. ref.).Black River: Lewis County, New York.ENDODESMA Ulrich. Genotype: E. cuneatum Uhich,Endodesma Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 525.?Grabau and Shimer,N. A. Index Fossils, 1, 1909, p. 527.Endodesma compressum Ulrich.Endodesma compressiim Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 529, pl. 36,figs. 35, 37.Trenton (Pressor): Near Wykoff, Minnesota.Holotype.?Ca.t. No. 46194, U.S.N.M. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 485Endodesma cuneatum Ulrich.Endodesma cuneatum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 526, pi. 36, figa.33, 34.?Grabau and Shinier, N. A. Index Fossils, 1, 1909, p. 527, fig. 715d, e.Trenton (Prosser): Near Wykoff, Minnesota.Eolotype.?C&t. No. 46195, U.S.N .M.Endodesma gesnerl (Billings).Modiolopsia Gesneri Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 172, fig.157a, b; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 43, figs. 45a, b (adv.sheets, 1862).?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 408,figs.Endodesina gesneri Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 528, pi. 37, figs.3, 4.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 527, fig. 7:5a.Black River and Trenton: Ottawa, etc., Ontario.Pl?siotype.?Ca,t. No. 46196, U.S.N .M.Endodesma orthonotum (Meek and Worthen).Modiolopsis orthonota Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 295,pi. 1, fig. 7a.Modiolopsis rectiformis Worthen, Bull. 1, Illinois State Mus. Nat. Hist., 1882,p. 38.Endodesma orthonotum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 527, pi. 37,figs. 1, 2.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 527, fig. 715b, c.Black River (Piatteville): Dunleith, Illinois.Plastotype?Cat. No. 46197, U.S.N .M.Endodesma postlatum Ulrich.Endodesma postlatum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 527, pi. 37,figs. 5, 6.Trenton (Galena): Dubuque, Iowa.Endodesma tranceps (Raymond).Cyrtodonta tranceps Raymond, Amer. Jour. Sci., 20, 1905, p. 372.Chazyan (Crown Point): Valcour Island, New York.Endodesma trentonense (Hall).Modiolopsis? trentonensis Hall, Pal. New York, 1, 1847, p. 161, pi. 34, fig. 10.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 412, fig.Lyonsia trentonensis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 170, pi. 14, fig. 4.Endodesma trentonensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 504 (gen. ref.),Trenton: New York.Endodesma undosum Ulrich.Endodesma undosum Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 529, pi. 36, fig. 38.Black River (Platteville) : Near Beloit, Wisconsin.Endyminia Vogdes. See Endymionia Billings.Endymion Billings. See Endymionia Billings.ENDYMIONIA Billings. Genotype: Endymion meeki Billings.Endymion Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, pp. 93, 94 (adv.sheets, 1862).Endymionia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 281.?Zittel,Handb. Pal., 2, 1885, p. 594.?Miller, N. A. Geol. Pal., 1889, p. 547.?Beecher,Amer. Jour. Sci., 3d ser., 49, 1895, p. 307; ibid., 4th ser., 3, 1897, p. 187.Endyminia Vogdes, Cal. Acad. Sci., Occ. Pap., 4, 1893, p. 253. 486 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Endymfonia meeki (Billings).Endymion meeki Billings, Pal. Foss., 1, Geol. Sxirv. Canada, 1865, p. 94, fig. 84(adv. sheets, 1862).Endymionia meeki Billings, Pal. Foss., 1, Geol. Sivrv. Canada, 1865, p. 281.?Miller, N. A. Geol. Pal., 1889, p. 547, fig. 1006.Canadian: Point Levis, Quebec (Le^is, Diplograptus dentatus zone); TableHead, Pistolet Bay, etc., Newfoundland (Quebec-N, P).Enopleura Wetherby. See Ateleocystites Billings.Enopleura balanoides Wetherby. See Ateleocystites balanoides.Enopleura Crustacea Bather. See Ateleocystites balanoides.ENTEROLASMA Simpson. Genotype: Streptelasma etrictum Hall.Enterolasma Simpson, Bull. New York State Mus., 39, 1900, p. 203.?Grabau,Bull. New York State Mus., 45, 1901, p. 136; BuU. Buffalo Soc. Nat. Sci., 7,1901, p. 136.Enterolasma caliculum (Hall).Streptelasma calicula Hall, Pal. New York, 2, 1852, p. Ill, pi. 32, fig. la-k.?Lambe, Contr. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 113, pi. 7,figs. 4a-c.Petraia calicula Billings, Geol. Sxurv. Canada, Geol. Canada, 1863, p. 308, fig. 310. ? Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 627, fig.Cyathophyllum? caliculum Foerste, Geol. Siu-v. Ohio, Pal., 7, 1893, p. 601, pi.34, fig. 8.Enterolasma caliculus Grabau, Bull. New York State Mus., 45, 1901, p. 137, fig.29; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 137, fig. 29.Streptelasma (Enterolasma) caliculum Grabau and Shimer, N. A. Index Fossils, 1,1906, p. 56, fig. 76g, 77.Enterolasma cf. caliculus Clarke and Ruedemann, Mem. New York State Mus., 5,1903, p. 24, pi. 1, fig. 1.Silurian (Cataract-Guelph) : Rochester, Lockport, etc.. New York; Grimsby,etc., Ontario; Lake Temiscaming, Quebec; Wisconsin, Ohio, Tennessee,Alabama, etc.Enterolasma geometricum (Foerste).Streptelasma calicula var. geometricus Foerste, Proc. Boston Soc. Nat. Hist., 24,1890, p. 345, pi. 9, figs. 7, 12, 13.Streptelasma? geometricum Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 601, pi.34, figs. 7, 12, 13.Upper Medinan (Brassfield): Near Dayton and Todds Fork; near Wilmington,Ohio.Enterolasma waynense (SafTord).Petraia Waynensis Safford, Geol. Tennessee, 1869, pp. 314, 320, pi. 5 (H), figs.2a-h.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, p. 628, figs.Streptelasma waynense Miller, N. A. Geol. Pal., 1889, p. 205 (gen. ref.).Enterolasma waynense Simpson, Bull. New York State Mus., 39, 1900, p. 204,figs. 13-15.Enterolasma (Petraia) waynense Foerste, Jour. Geol., 11, 1903, p. 713 (loc. occ).Niagaran (Brownsport) : Wayne, Decatiir, and Perry Counties, Tennessee.ENTOMIS Jones. Genotype: E. tuberosa Jones.Entomis Jones, Mem. Geol. Surv. Great Britain, Expl. Map 32, Scotland, 1861,p. 137.?Miller, N. A. Geol. Pal., Ist App., 1892, p. 707.?Ubich, Zittel- BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 487ENTOMIS?Continued.Eastman Textb, Pal., 1, 1900, p. 646.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res., Indiana, 1908, p. 1040.?Grabau and Shimer, N. A. Index Fosdls,2, 1910, p. 362.?Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 741.Entomis madisoncn.sis Ulrich.Entomis inadisonensLs Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 107,pi. 7, figs. 12a-b.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana,1908, p. 1046, pi. 53, figs. 8, 8b.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 362, fig. 1667, r, s.Richmond (Whitewater-Saluda) : Near Madison, Indiana.Eolotype.?C&t. No. 41565, U.S.N.M.Eutomis waldronensis Ulrich.Entomis waldronensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 2, 1891, p.183, pi. 12, figs. 3a, 3b.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.363, fig. 1668m, n.Niagaran (Waldron): "VValdron, Indiana.Holoti/pe?Gat. No. 41566, U.S.N.M.Entomolitus paradoxus pisiformis Linnaeus. See Agnostus pisiformis.Entomostracites pisiformis "Wahlenberg. See Agnostus pisiformis.Entomostracites scarab^oides Wahlenberg. See Peltura scarabaeoides.Entomostracites spinulosus Wahlenberg. See Parabolina spinulosa.EOHARPES Raymond. Genotype: Harpes primus Barrande.Harpina Novak (not Burmeister, 1844) Sitz. d. k. bohm. Gesell. d. Wiss. Math.-Naturw. CI. for 1884, 1885, p. 215.?Clarke, Geol. Minnesota, pt. 2, 1894, p.756.?Beecher, Amer. Jour. Sci., 49, 1895, p. 307; ibid., 3, 1897, p. 185.Eoharpes Raymond, Amer. Jour. Sci., 19, 1905, p. 378; Zittel-Eastman Textb. Pal.,1913, p. 711.Eoharpes antiquatus (Billings).Harpes antiquatus Billings, Canadian Nat. Geol., 4, 1859, p. 469, fig. 38; Geol.Canada, Geol. Sur\'. Canada, 186.3, p. 133, fig. 67.Harpina antiquatus Raymond, Annals Carnegie Mus., 3, 1905, p. 330, pi. 10, fig. 1.Eoharpes antiquatus Raymond, 7th Rep. Vermont State Geol., 1910, p. 214, pi.32, fig. 1; Ann. Carnegie Mus., 7, No. 1, 1910, p. 60.Chazyan: Mingan Islands, Canada (Mingan); Valcour, Valcour Island and Chazy,New York; Isle La Motte, Vermont (Day Point, Crown Point).Eoharpes casslnensis (Whitfield).Harpes cassinensis Whitfield, Bull. Amer. Mus. Nat. Hist., 9, 1897, p. 182, pi. 5,figs. 3, 4.?Seely, Vermont State Geol., Rep. 7, 1910, pi. 55, figs. 3, 4.Canadian (Beekmantown) : Fort Cassin, Vermont.Eoharpes consuetus (Billings).Harpes consuetus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv'. Canada, 1866,p. 64.Anticostian (Chicotte): Southwest Point, Anticosti.Eoharpes dentoni (BilUngs).Harpes Dentojii Billings, Canadian Nat. Geol., 8, 1863, p. 36, fig.; Pal. Foss.,1, Geol. Surv. Canada, 1865, p. 183, fig. 166.Eoharpes dentoni Raymond, Bull. Victoria Memorial !Mu8., 1, 1913, p. 33, pi. 3,fig. 5.Trenton (Curdsville): Ottawa, Ontario. 488 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Eoharpes escanablae (Hall).Harpea escanabise Hall, Geol. Lake Sup. Land Dist., Foster and Whitney's Kep.,1851, p. 211, pi. 27, fig. 2a.Trenton: Escanaba River below Indian Creek, Michigan.Eoharpes grant! (Billings).Harpes granti Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 326, fig. 314.Canadian (Beekmantown): Stanbridge, Quebec.Eoharpes mlnnesotensls (Clarke).Harpina minnesotensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 755, fig. 76.Trenton (Prosser): Hader, Minnesota.ffolotype?Csit. No. 41889, U.S.N.M.Eoharpes ottawaensls (Billings).Harpes ottawaensia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 182, fig.y 165; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 28.?Miller, N. A.Geol. Pal., 1889, p. 549, fig. 1011.Harpina ottawaensis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 757, fig. 79.?Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 191, pi. 14, figs. 1, 2.?Ray-mond, Annals Carnegie Mus., 3, 1905, p. 331, pi. 10, fig. 2.Harpes (Harpina) ottawaensis Grabau and Shimer, N. A. Index FossUs, 2, 1910, p.258, fig. 1546.Eoharpes ottawaensis Bassler, Bull. Virginia Geol. Surv., 29, 1909, p. Ill, fig. 10. ? Raymond, 7th Rep. Vermont State Geol., p. 215, pi. 32, fig. 2.?Ruedemann,Bull. New York State Mus., 162, p. 116, pi. 9, fig. 1.Chazyan: Valcour, etc.. New York (Day Point); Virginia (Liberty Hall.)Trenton: Ottawa, Ontario; New Jersey, New York, Minnesota, etc.Plastotype?Cat. No. 41887, U.S.N.M.Eoharpes pustulosus (Hall).Ceraurus? pustulosus Hall, Pal. New York, 1, 1847, p. 246, pi, 61, figs. 2a, b.Harpes pustulosus Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 67(gen. ref.).Eoharpes pustulosus Raymond and Barton, Bull. Mus. Comp. Zool., 54, 1913, p.542.Black River: Watertown. New York.Eoharpes rutrellum (Clarke).Harpina rutrellum Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 757, figs. 80, 81.Trenton (Prosser): Cannon Falls, and Minneapolis, Minnesota.Eolotype.?Csit. No. 41888, U.S.N.M.EOORTHIS Walcott. Genotype: Orthis remnicha Wincholl.Orthis (Plectorthis) Walcott (not Hall and Clarke), Proc. U. S. Nat. Mus., 28, 1905,pp. 257-259.Plectorthis Grabau and Shimer (part) (not Hall and Clarke), N. A. Index Fossils,1907, 1, p. 250.Eoorthis Walcott, Smiths. Misc. Coll., 53, 1908, pp. 102-104; ibid., 53, No. 4, 1908,pi. 11, and pp. 142 and 148; Mon. U. S. Geol. Surv., 51, 1912, p. 772.?Schu-chert, Zittel-Eastman Textb. Pal., 1913, p. 381.Orthis (Orusia) Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 273.Orusia Walcott, Smiths. Misc. Coll., 53, 1908, pi. 11, pp. 142, 148; U. S. Geol.Surv., Mon., 51, 1912, p. 765 (Genotype: Anomites lenticularis Wahlenberg). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 489Eoorthis atava (Matthew).Strophomena atava Matthew, Trans. Roy. Soc. Canada, 1st ser., 1893, 10, Bee.4, pp. 102-103, pi. 7, fig. 8a-f.?Moberg and Segerberg, Medd. fran. LundsGeol. Faltklubb, ser. B., No. 2, 1906.Rafinesquina? atava Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 338.Orthia (Plectorthis) atava Walcott, Proc. U. S. Nat. Mus., 28, 1905, pp. 259-2G0.p:o()rthis atava Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p. 774, pi. 95, figs.7, 7a-b.Canadian (Bretonian?Div. C 3a): Navy Island, St. John Harbor, New Bruns-wick.Eoorthis desmopleura (Meek).Orthis coloradoensis Meek (not Shumard), Proc. American Phil. Soc, 2, 1870,p. 425.Orthis desmopleura Meek, Hayden's U. S. Geol. Surv. Wyoming, 1872, p. 295,Orthis (Plectorthis) desmopleura Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 261.Eoorthis desmopleiu-a Walcott, Mon. XJ. S. Geol. Surv., 1912, 51, p. 777, pi. 96,figs. 1, la-r.Upper Cambrian: Utah, New Mexico, Pennsylvania, etc.Lower Ordovician: Glen Eyre, Queens Canyon, near Manitou, and ColoradoSprings, Colorado.Holotype and j^lesiotypes.?C&t. Nos. 7859, 52317, 52320, U.S.N.M.Eoorthis desmopleura nympha Walcott.Orthis (Plectorthis) desmopleura nympha Walcott, Proc. U. S. Nat. Mus., 28,1905, p. 262.Eoorthis desmopleura nympha Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 778,pi. 96, fig. 2,Lower Ordovician: Williams Canyon, Manitou, Colorado; also Upper Cambrian ofWyoming.Holotype?C&t. No. 52333, U.S.N.M.Eoorthis johannensis (Matthew).Orthisina(?) johannensis Matthew, Trans. Roy. Soc, Canada, 1st ser., 9, sec. 4,1892, pp. 49-50, pi. 12, figs. 13a-c.Clitambonites? johannensis Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 184.Orthis (Plectorthis) johannensis Walcott, Proc. U, S. Nat. Mus., 28, 1905, pp.265, 266.Eoorthis johannensis Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p. 781, pi.97, figs. 10, 10a.Canadian (Bretonian?Div. C 3a): Germaine Street, St. John, New Brunswick.Eoorthis (Orusia) lenticularis (Wahlenberg).Anomites lenticularis Wahlenberg, Nova Acta Regiae Soc. Sci. Upsal., 8, Petrif.tell. Svecanae, 1821, pp. 66, 67.Orthis lenticularis Davidson, British Foss. Brachiopoda, 3, pt. 7, 1869, pp. 230-232,pi. 33, figs. 22-28 ?Roemer, Leth. geog., pt. 1, Leth. Pal., Atlas, 1876, pi. 2,figs. 4a-c.?Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, pp. 46^8, pi.12, figs. 9a-d; Geol. Surv. Canada, Rep. Cambrian Rocks Cape Breton, 1903,pp. 213-116, pi. 17, figs. la-d.Orthis (Orusia) lenticularis Walcott, Proc. U. S. Nat. Mus., 28, 1905, pp. 273-276.Orusia lenticularis Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p. 98, figs. 1,la-p; 2, 2a-k; 3, 3a-b; 6, 6a-c. (See for complete bibliography.)Orthis lenticularis strophomenoides Matthew, Trans. Roy. Soc. Canada, 9, sec. 4,1892, p. 49, pi. 12, figs. 12-b; Geol. Surv. Canada, Rep. Cambrian Rocks CapeBreton, 1903, p. 217, pi. 17, figs. 4a-b. 490 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Eoorthls (Orusia) lenticularis?Continued.Olenus limestone and shale of Norway and Sweden; Lingula flags of North Wales,etc.Canadian (Bretonian?Div. C 3a-c): St. John, New Brunswick and Cape Breton,Nova Scotia.Eoorthls (Orusia) lenticularis atrypoides (Matthew).Orthis lenticularis var. atrypoides Matthew, Trans. Royal Soc. Canada, 9, 1892, p.48, pi. 12, figs. 11a, lib; Geol. Surv. Canada, Kept. Cambrian Rocks CapeBreton, 1903, p. 217, pi. 17, figs. 3a-b.Orthis (Orusia) lenticularis atrypoides Walcott, Proc. IT. S. Nat. Mus., 28, 1905p. 276.Orusia lenticularis atrypoides Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912, p.769, pi. 98, fig. 5.Canadian (Bretonian?Div. C 3a): Germaino Street, St. John, New Brunswick.Eoorthls (Orusia) lenticularis lyncioides (Matthew).Orthis lenticularis var. lyncioides Matthew, Trans. Royal Soc. Canada, 9, 1892,p. 49, pi. 12, figs. lOa-lOc; Geol. Surv. Canada, Rep. Cambrian Rocks CapeBreton, 1903, p. 216, pi. 17, figs. 2a-c.Orthis (Orusia) lenticularis lyncioides Walcott, Proc. U. S. Nat. Mus., 28, 1905,p. 277.Onisia lenticularis lyncioides Walcott, Mon. U. S. Geol. Surv., 51, pt. 1, 1912,p. 769, pi. 98, fig. 4.Canadian (Bretonian?Div. C 3a): Germaine Street, St. John, New Brunswick.Eoorthis newtonensis (WeHer).Orthis newtonensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, pp. 113, 114,pi. 1, figs. 3-5.Orthis (Plectorthis) newtonensis Walcott, Proc. U. S. Nat. Mus., 28, 1905, p. 267,Eoorthis newtonensis Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 784, pi. 97.figs. 9, 9a.Upper Cambrian or Ozarkian (Kittatinny): Newton, Sussex County, New Jersey.Eoorthis wichitaensis Walcott.Orthis (Plectorthis) wichitaensis Walcott, Proc. 11. S. Nat. Mus., 28, 1905, pp.271-272.Eoorthis wichitaensis Walcott, Mon. U. S. Geol. Surv. 51, 1912, p. 790, pi. 94,figs, la-o, u.Lower Ordovician: Near Manitou, El Paso County, Colorado. Also Upper andMiddle Cambrian of Oklalioma, Missouri, etc.Eolotype and paralypes.?Cat. Nos. 52381, 52384, U.S.N.M.EoPHYTON (ScoLiTHUs) DispAR Jamos. See Scolithus dispar.EOPOLTCHiETUS Ruedemann. Genotype: E. albaniensis Rucdemann.Eopolychaetus Ruedemann, Bull. New York State Mus., 42, 1901, p. 573.Eopolychaetus albanien.sis Ruedemann.Eopolychaitus albanien.sis Rueaemann, Bull. New York State Mus., 42, 1901, p.573, pi. 1, fig. 13.Trenton (Snake ITill): RuY-al Cemetery, near Albany, New York.EOPTEBIA Billings. Genotype: E. typica Billings.Eopteria Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 221.?Zittel, Handb.Pal., 2, 1881, p. 36.?Miller, N. A. Geol. Pal., 1889, p. 480. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 491Eopteria? ornata Billings.Eopteria ornata Billings, Pal. Foss. 1, Geol. Surv. Canada, 1865, p. 307, fig. 299,Ozarkian? (Levis- erratic): Point Levis, Quebec.Eopteria richardsoni Billings.Eopteria Richardsoni Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 306.text fig. 298.?Miller, N. A. Geol. Pal., 1889, p. 480, fig. 821.Canadian (Beekmantown): Near St. Antoine, above Quebec, Canada.Eopteria typica Billings.Eopteria typica Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 221.Canadian (Quebec?G.): Port aux Choix, Newfoundland.EOSPONGIA BilUngs. Genotype: E. roemeri Billings.Eospongia Billings, Geol. Vermont, 2, 1861, p. 955; Rep. Econ. Geol., etc.,Vermont, 1862, p. 227.; Pal. Fossils, 1, Geol. Surv. Canada, 1865, pp. 18, 19(adv. sheets, 1861).?miler, N. A. Geol. Pal., 1889, p. 159.?Seely, Rep.State Geol. Vermont, 3, 1902, p. 153.Eospongia roemeri Billings.Eospongia roemeri Billings, Geol. Vermont, 2, 1862, p. 956; Rep. Econ. Geol.,etc., Vermont, 1862, p. 228. Billings, Pal. Foss., 1, Geol., Surv. Canada, 1865,p. 19 (adv. sheets, 1861).Chazyan (Mingan): Mingan Islands, Canada.Eospongia varians Billings. See Zittelella varians.EOTOMARIA Ulrich and Scofield. Genotype: E. canalifera Ulrich.Pleurotomaria and Rapliistoma (part)of American authors.Eotomaria, Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, pp. 954, 1000.?Koken, Neues Jalub. Min., Geol. and Pal., 1, 1898, p. 19.?Grabau andShimer, N. A. Index Fossils, 1, 1909, p. 642.Eotomaria areyi Clarke and Ruedemann.Eotomaria areyi Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p.68, pi. 8, fig. 2.?Grabau and Sliimer, N. A. Index Fossils, 1, 1909, p. 643.?Grabau, Micliigan Geol. Surv., Geol. Ser. 1, 1909, p. 187, pi. 23, fig. 5.Niagaran (Guelph): Rochester, New York.Upper Monroan (Lucas and Amherstburg): Detroit River region, Michigan.Eotomaria canalifera Ulrich.Eotomaria canalifera Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1002, pi. 69, figs.9-14. (E. sublsevis, p. 954, in error.)Pleurotomaria canalifera Miller, N. A. Geol. Pal., 1897, p. 769 (gen. ref.).Stones River (Murfreesboro): Near Murfreeeborc, Tennessee,Cotypes.?Cat. No. 46055, U.S.N.M.Eotomaria? cassina (Whitfield).Lophospira Cassina Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 312, pi. 25,figs. 1-4.?Seely, Vermont State Geol., Rep. 7, 1910, pi. 59, figs. 1-4.Eotomaria? cassina Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 991 (gen. ref.)Murchisonia cassina Miller, N. A. Geol. Pal., 1899, p. 411 (gen. ref.).Canadian (Beekmantown): Fort Cassin, Vermont.Eotomaria dryope (Billings).Pleurotomaria Dryope Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 170,fig. 154a, b. 492 BULLETIN 92. UNITED STATES NATIONAL MUSEUM.Eotomaria dryope?Continued.Eotomaria dryope Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1003,pi. 69, figs. 21-25.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 642,fig. 875c-e.Black River: Pa^lquette9 Rapids, Ottawa River, Canada; Minneapolis and Can-non Falls, Minnesota (Platteville); Lincoln County, Missouri (Auburn);Maury County, Tennessee.Plesiotypes.?Csit Nos. 45804, 45805, U.S.N.M.Eotomaria durhamensis (Whiteaves).Pleurotomaria Durhamensis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1,1884, p. 24, pi. 4, fig. 2; ibid., pt. 2, 1895, p. 77.Eotomaria durhamensis Clarke and Ruedemann, Mem. New York State Mus., 5,1903, p. 68, pi. 10, fig. 17.Niagaran (Guelph): Durham, Ontario; Rochester, New York.Eotomaria elevata Ulrich.Eotomaria elevata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1005, pi. 70, figs.68-69.Scalites elevatus Miller, N. A. Geol. Pal., 2d App., 1897, p. 770 (gen. ref.).Ti-enton (Catheys): Hartsville, Tennessee.Eolotype?Cut. No. 45806, U.S.N.M.Eotomaria galtensis (Billings).Pleurotomaria Galtensis Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 343,fig. 349; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 154, fig. 136 (adv. sheets,1862).?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 709, fig.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 75, pi. 11, fig. 7.Eotomaria galtensis Clarke and Ruedemann, Mem. New York State Mus., 5, 1903,p. 70, pi. 10, figs. 10-12.?Grabau and Shimer, N. A. Index Fossils, 1, 1909,p. 643, fig. 877.?Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 189,pi. 25, fig. 1, 2.Niagaran (Guelph): Gait, etc., Ontario; Oak Orchard Creek, New York; Wis-consin.Upper Monroan (Lucas and Amherstburg) : Detroit River region, Michigan.Eotomaria halei Clarke and Ruedemann. See Euomphalopterus halei.Eotomaria kayseri Clarke and Ruedemann.Eotomaria kayseri Clarke and Ruedemann, Mem. New York State Mus., 5, 1903,p. 70, pi. 7, fig. 1; pi. 8, fig. 1.Niagaran (Guelph): Rochester, New York.Eotomaria labiosa Ulrich.Eotomaria labiosa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1003, pi. 69, figs.15-17.Stones River (Murfreesboro) : Murfreesboro, Tennessee.Holotype.?Cat. No. 46056, U.S.N.M.Eotomaria laphami (^Vhitfield).Pleurotomaria Laphami Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv.,1878, p. 84; Geol. Wisconsin, 4, 1882, p. 296, pi. 18, fig. 9.?Chamberlin,Geol. Wisconsin, 1, 1883, p. 193, fig.?Kindle and Breger, 28th Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1904, p. 455, pi. 11, fig. 4.Pleurotomaria (Eotomaria) laphami Clarke and Ruedemann, Mem. New YorkState Mus., 5, 1903, p. 70 (gen. ref.). BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 493Eotomaria laphami?Coutinued.Eotomaria laphami Clarke and Ruedemann, Mem. New York State Mus., 5, 1903,p. 70 (gen. ref.).Niagaran: Ashford, Wisconsin (Racine); Delphi, Indiana.Eotomaria obsoleta Raymond.Eotomaria obsoletum Raymond, Amer. Jour. Sci., 4th ser., 20, 1905, p. 376; Ann.Carnegie Mas., 4, 1908, p. 192, pi. 49, figs. 12-14.Chazyan (Day Point, Crown Point) : Crown Point and Valcour Island, New York.Eotomaria supracingulata (Billings).Pleurotomaria supracingulata Billings, Rep. Progr., Geol. Surv. Canada, 1857, p.302; Geol. Canada, Geol. Surv. Canada, 1863, p. 181, fig. 175.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1889, p. 717, fig.Eotomaria supracingulata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1894, p.1004, pi. 69, figs. 26-29.?Grabau and Shimer, N. A. Index Fossils, 1, 1909,p. 643, fig. 876.Raphistoma (Pleurotomaria) nasoni Hall, Rep. Geol. Surv. Wisconsin, 1862, p.39, fig. 2.Raphistoma Nasoni Whitfield, Geol. Wisconsin, 4, 1882, p. 215, pi. 6, figs. 2, 3.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 157, fig.?Walcott, Mon. U. S.Geol. Sui-v., 8, 1884, p. 78, pi. 11, figs. 21, 21a.Plemrotomaria nasoni Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 34. ? WTutfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 61, pi. 8, figs. 4-7.Black River: St. Joseph's Island, Lake Huron; Dixon, etc., Illinois; Minneapolis,etc., Minnesota; Janesville and Beloit, Wisconsin; Eureka District, Nevada(Pogonip).Pledotypes.?G&t. Nos. 45807, 45808, U.S.N.M.Eotomaria vicina Ulrich and Scofield.Eotomaria vicina Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1003, pi.69, figs. 18-20.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 643,fig. 875f.Black River (Platteville): Minneapolis, Minnesota; Mineral Point, Wisconsin.Cotype.?C&t. No. 45809, U.S.N.M.EOTROPHONIA Ulrich. Genotype: E. setigera Ukich.Eotrophonia Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 91.Eotrophonia setigera Ulrich.Eotrophonia setigera Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 91, pi. 4,fig. 5.Eden (Economy): Covington, Kentucky.Cotypes?Cat. No. 46535, U.S.N.M.EREMOCERAS Hyatt. Genotype: Cyrtoceras syphax Billings.Eremoceraa Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 282; Zittel-EastmanTextb. Pal., 1900, p. 530; ibid., 2d ed., 1913, p. 611.Eremoceras syphax (Billings).Cyrtoceras Syphax Billings, Pal. Foss., 1, Geol. Surv\ Canada, 1865, p. 194, textfig. 178.Eremoceraa syphax Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 282 (gen.ref.).Canadian (Levis-limestone) : Point Levis, Quebec.ERIDONYCHIA Ulrich. Genotype: E. apicaUs Ulrich.Eridonychia Uhich, Geol. Surv. Oluo, 7, 1893, p. 639.?Cumings, 32d Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1908, p. 980. 494 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Erldonychia aplcalis Ulrich.Eridonychia apicalis Ulricli, Geol. Surv. Ohio, 7, 1893, p. 639, pi. 47, fig. 1.Maysville (Fairmount) : Cincinnati, Ohio, and vicinity.Eolotype.?C&t. No. 46198, U.S.N.M.Erldon/chia crenata Ulrich.Eridonycliia crenata Ulrich, Geol. Surv. OMo, 7, 1893, p. 640, pi. 47, fig. 3.Richmond (Waynesville) : Waynesville, Ohio.Holotype.?Cut. No. 46199, U.S.N.M.Eridonychia paucicostata Ulrich.Eridonychia paucicostata Ulrich, Geol. Sur\\ Ohio, 7, 1893, p. 640, pi. 47, fig. 2.Maysville (Fairmount): Covington, Kentucky.Holotype.?Cat. No. 46200, U.S.N.M.ERIDOPHTLLUM Edwards and Haime.Genotype: E. vemeuilanum Edwards and Haime.Eridophyllum Edwards and Haime, Hon. d. Polyp. Foss. d. Terr Pal., 1851(Arch, du Mus. d'Hist. Nat., 5), pp. 171-423.?Pictet, Traits de Pal., 2d ed.,4, 1857, p. 459.?Billings, Canadian Jour., n. s., 4, 1859, p. 130.?Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 414.?Dybowski, Archiv. Naturf.Liv-,Ehst-undKuri.,5, 1873, p. 337.?Nicholson, Rep. Pal. Prov. Ontario,pt. 1, 1874, p. 34.?Zittel, Handb. Pal., 1, 1879, p. 233.?Roemer, Leth.geog., pt. 1, Leth. Pal., 1883, p. 356.?Miller, N. A. Geol. Pal., 2d App., 1897,p. 728.?Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, pp.25, 26.?Grabau and Shimer, N, A. Index Fossils, 1, 1906, p. 71.Eridophyllum dividuum Davis.Eridophyllum dividuum Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky,1885, pi. 109, figs. 3-12.Niagaran (Louis\ille): Louisville, Kentucky.Cotype.?C&t. No. 52776, U.S.N.M.Eridophyllum eruciforme Davis.Eridophyllum eruciforme Davis, Kentucky Foss. Corals, Geol., Surv. Kentucky,pt. 2, 1885, pi. 107.Niagaran (Louisville): Louisville, Kentucky.Eridophyllum huronicum Davis. See Diphyphyllum huronicum.Eridophyllum louisvlllense Greene.Eridophyllum Louisvillensis Greene, Cont. Indiana Pal., 1, pt. 11, 1903, p. 98, pi.31, fig. 1.Niagaran (Louis\dlle): Louisville, Kentucky.Eridophyllum proliferum Foerste.Eridophyllum proliferum Foerste, Jour. Geol., 11, 1903, p. 713.Niagaran (Brownsport): Near Brownsport Furnace, near Linden, and nearSavannah, Tennessee.Eridophyllum rugosum Edwards and Haime.Eridophyllum? rugosum Edwards and Haime, Pol. Foss. des Terr. Pal., 1851, p.424, pi. 10, figs. 4-4b.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 357.?Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hi.st., 1883, p. 255, pi. 3, fig.6.?Davis, Kentucky, Foss. Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi.109, fig. 1; pi. 110.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p.223, figs.?Simpson, Bull. New York State Mus., 8, 1900, p. 123, fig. 38.?Grabau and Shimer, N. A. Index Fossils 1, 1906, p. 72, fig. Ill; 113 a. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 495Eridophyllum rugosum?Continued.Diphyphyllum rugosum Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 122,pi. 45, fig. 2.?Lambe, Cont. Can. Pal., Geol. Sxirv. Canada, 4, pt. 2, 1901,p. 157.Middle Silurian: Gotland; Louisville, Kentucky; CabotsHead, Georgian Bay, etc.,Ontario (Niagaran).Eridophyllum sentum Davis.Eridophyllum sentum Davis, Kentucky Fossil Corals, Geol. Siu-v. Kentucky,pt. 2, 1885, pi. 51, fig. 4; pi. 108, fig. 1.Niagaran (Louisville): Louisville, Kentucky.Eridophyllum Vennori Billings. See Synaptophyllum multicaule.Eridorthis Foerste. See Hebertella subgenus Eridorthia.ERIDOTRTPA UMch. Genotype: E. mutabilis Uh-ich.Batostomella (in part) Uhich, Geol. Surv. Illinois, 8, 1890, pp. 375, 432.Eridotrypa Uhich, Geol. IVIinnesota, 3, 1893, p. 204.?Miller, N. A. Geol. Pal., 2dApp., 1897, p. 756.?Nickles and Bassler, Bull. U. S. Geol. Siu-^r., 173, p. 32.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 29.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, p. 745.?Hennig, Archiv. fiir Zool., 4, 21, p. 36. ? Grabau and Shimer, N. A. Index Fossils, 1, 1908, p. 134.?Bassler, Bull. U.S. Nat. Mus., 77, p. 242.Eridotrypa aedilis (Eichwald).Cladopora eedilis Eichwald, Bull. Soc. Nat. Moscou, No. 4, 1855, p. 457; Leth.Rossica, 1, 1860, p. 404, pi. 24, figs. 12, 13.Monticulipora gedilis Dybowski, Die Chsetetiden Ostbaltischen Silur-Formation,1877, p. 98, pi. 3, figs. 5, 5a.Eridotrypa sediHs Bassler, Bull. U. S. Nat. Mua., 77, 1911, pp. 242, 244, pi. 4, figs.5, 5a; figs. 137, 138.Eridotrypa mutabilis Uhich, Geol. Minnesota, 3, 1893, p. 265, pi. 26, figs. 20-32.?Sardeson, Jour. Geol., 9, 1901, p. 13, pi. A, fig. 11.?Grabau and Shimer,N. A. Index Fosdls, 1, 1907, p. 134, fig. 188f, 190f.Middle Ordovician: Various localities in Esthonia, Russia; Goodhue, Ramsey,and Dakota Counties, Minnesota; Wisconsin, Tennessee, Kentucky, Ontario,etc. (Black River and Trenton).Plesiotypes.?Cat. No. 43536, U.S.N.M. Cotypes of E. mutabiUs.Eridotrypa aedllis minor (Ulrich).Eridotrypa mutabilis var. minor Uhich, Geol. Minnesota, 3, 1893, p. 266, pi. 26,figs. 20, 21, 29, 30.Eridotryjm sedilis minor Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 245, fig. 139.Middle Ordovician: Cannon Falls, etc., Minnesota (Trenton-Prosser) ; Wesenberg,Esthonia, Russia (Wesenl)erg).Cotypes.?Cat. No. 43537, U.S.N.M.Eridotrypa briareus (Nicholson).Chaetetes briareus Nicholson, Pal. Ohio, 2, 1875, p. 202, pi. 21, 13-13b.Monticuliijora (Monotrypa) l)riareus Nicholson, Genus Monticulipora, 1881,p. 198, pi. 2, figs. 5-5c.MonticuUpora briarea James and James, Jour. Cincinnati Soc. Nat. Hist., 10,1888, p. 172.?J. F. James, ibid., 16, 1894, p. 191.Monticulipora (Chsetetes) briareus Chamberlin, Geol. Wisconsin, 1, 1883, p.172, fig. 496 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Erldotrypa brlareus?Continued.Monotrypella briarea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 248,256 (gen. ref.).Eridotrypa briareus Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.237.?Nickles, Bull. Kentucky Geol. Surv. No. 5, 1905, p. 43, pi. 1, figs. 4, 5.Trenton: Covington, Kentucky. An abundant species in central Kentucky(Cynthiana) and central Tennessee (Bigby, Cathey).Erldotrypa echinata (Hall).Trematopora echinata Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876,pi. 11, figs. 1-5; ibid., Mus. ed., 1879, p. 112, pi. 11, figs. 1-5; 11th Ann. Rep.,Indiana Geol. Nat. Hist., 1882, p. 233, pi. 10, figs. 1-5.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, p. 1200, figs.Eridotrypa echinata Ulrich, Geol. Minnesota, 3, 1893, p. 265.Niagaran (Waldron): Waldron, Indiana.Erldotrypa exigua Ulrich.Eridotrypa exigua Ulrich, Geol. Minnesota, 3, 1893, p. 266, pi. 26, figs. 17-19.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 245, 246, fig. 140.Trenton: Cannon Falls, Minnesota (Prosser); Trenton Falls, New York; ChimneyPoint, Vermont.Middle Ordovician (Jewe) : Near Jewe, Esthouia, Russia.Cotypes.?CdLt. No. 43535, U.S.N.M.Eridotrypa mutabilis Ulrich. See Eridotrypa sedilis.Eridotrypa mutabilis var. minor Ulrich. See Eridotrypa sedilis minor.Eridotrypa nodulosa Bassler.Eridotrypa nodulosa Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 30, pi. 11, figs.14, 15; pi. 25, figs. 1-3.Clinton (Rochester) : Lockport and Rochester, New York.Co^ypes.?Cat. No. 35524, U.S.N.M.Erldotrypa parvulipora Ulrich and Bassler.Eridotrypa parvulipora Ulrich and Bassler, Maryland Geol. Surv., Low. Dev.,1913, p. 272, pi. 43, figs. 5-8; pi. 44, figs. 7, 8.Helderbergian (Keyser): Keyser and Cherry Run, West Virginia; Cumberland,Maryland.Cotypes?Cat. No. 53643, U.S.N.M.Erldotrypa similis Bassler.Eridotrypa similis Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 31, 32, pi. 12,figs. 10-14; pi. 26, figs. 1, 2.?Grabau and Shimer, N. A. Index Foesile, 1,1907, p. 134.Clinton (Rochester): Lockport, etc., New York; Grimsby and Thorold, Ontario.Cotypes.?Cat. No. 35519, U.S.N.M.Erldotrypa simulatrbc (Ulrich).Batostomella simulatrix Ulrich, Geol. Surv. Illinois, 8, 1890, p. 432, pi. 35, figs.1-lg.Eridotrypa simulatrix Ulrich, Geol. Minnesota, 3, 1893, p. 265.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 828, pi. 16, figs. 4, 4b; pi.29, figs. 5, 5a.Monticulipora simulatrix J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894,p. 194.Richmond: Clarksville, Waynes\dlle, and other localities in Ohio; Weisberg andVersailles, Indiana; Savannah, Illinois; Anticosti.Cotypes.?C&t. No. 43744, U.S.N.M. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 497Erldotrypa solida (Hall).Trematopora solida Hall, Pal. New York, 2, 1852, p. 153, pi. 40a, figs. 6a-c. ? Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 258.Homotrypa? solida Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 293.Eridotrypa solida Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 30, 31, pi. 12,figs. 7-9; pi. 24, figs. 20-23; pi. 25, fig. 16.Clinton (Rochester): Lockport, Rochester, etc., New York; Grimsby and Thor-old, Ontario.Plesiotypes.?Cat. No. 35525, U.S.N.M.Eridotrypa spfnosa Bassler.Eridotrypa spinosa Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 29, 30, pi. 12,figs. 1-3; pi. 25, fig. 15.Clinton: Grimsby, Ontario; Lockport, Lewiston, and Rochester, New York(Rochester); Osgood, Indiana (Osgood).Co/ypes.?Cat. Nos. 35521, 35739, U.S.N.M.Eridotrypa striata (Hall).Trematopora striata Hall, Pal. New York, 2, 1852, p. 153, pi. 40, fig. 7a-d.?Grabau, Bull. New York State Mus., 45, 1901, p. 167, fig. 66.Eridotrypa striata Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 32, pi. 12,figs. 4-6; pi. 24, figs. 3-6; pi. 25, fig. 14.Clinton: Lockport, Niagara Falls, and Rochester, New York; Grimsby, Ontario(Rochester); Osgood, Indiana (Osgood).Cotypes.?Cat. No. 35545, U.S.N.M.Eridotrypa trentonensis (Nicholson).Monticulipora (Heterotrypa) Trentonensis Nicholson, Genus Monticulipora, 1881,p. 149, fig. 28.Monotrypella Trentonensis Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 15.Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 83.Eridotrypa trentonensis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1890,p. 238.Trenton: Peterboro, Ontario; Mercer County, Kentucky.Eridotrypa vevayensis Cumings. See Batostoma jamesi. 'ERIPTTCHIUS Walcott. Genotype: E. americanua Walcott.Eriptychiua Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 167.Eriptycliius americanus Walcott.Eriptychius americanus Walcott, Bull. Geol. Soc. Amer., 3, 1892, p. 167, pi. 4,figs. 5-11.Black River (Harding) : Canyon City, Colorado.Erisocrinus? bipartitus (Troost).Donacicrinites bipartitus Troost MS., 1850.Erisocrinus? bipartitus (Troost) Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 98,pi. 6, figs. 8, 9.?Niagaran (Brownsport): Decatur County, Tennessee.Observation.?Proljably a Graphiocrinus from the Carboniferous of the Missis-sippi Valley and not from Decatur County, Tennessee [Frank Springer.]EscHARA BiFURCATA Van Cleve. See Pachydictya bifurcata.EscHARA BiPUNCTATA Van Cleve. See Phaenopora expansa.84243??Bull. 92?15 32 498 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.EscHARA coMPRESSA Van Cleve. See Phsenopora magna.EscHARA MULTiFiDA Van Cleve. See Phsenopora multifida.Eschara ovatopora Troost. Not recognizable.Escharia ovatopora Troost, 5th Geol. Rep. Tennessee, 1840, p. 75,Ordovician: Near Nashville, Tennessee.EscHARA RAMOSA Van Cleve. See Phaenopora fimbriata,Eschara reticulata Troost. Not recognizable.Escharia reticulata Troost, 5th Geol. Rep. Tennessee, 1840, p. 75.Ordovician: Near Nashville, Tennessee.EscHARiNA DisTORTA James. See Rhinopora verrucosa.ESCHAROPORA Hall. Genotype: E. recta Hall.Escharopora Hall, Pal. New York, 1, 1847, p. 72.?Eichwald, Lethsea Rossica,1, 1860, p. 435.?Miller, N. A. Geol. Pal., 1889, p. 301.?Ulrich, Geol. Min-nesota, 3, 1893, p. 167; Zittel's Textb. Pal. (Engl, ed.), 1896, p. 279.?Nickleaand Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 45.?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 156.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 745.?Bassler, Bull. U. S. Nat. Mus., 77, 1911,p. 115; Zittel-Eastman Textb. Pal., 1913, p. 345.Nicholsonia Waagen and Wentzel, Pal. Indica, 13th ser., 1886, p. 874.Ptilodictya (in part) of various authors.Escharopora acuminata (James).Ptilodictya acuminata James, Catal. Foss. Cincinnati Group, p. 3.Escharopora acuminata Ulrich, Geol. Minnesota, 3, 1893, p. 167.?Bassler, Proc.U. S. Nat. Mus., 30, 1906, p. 36.?Cumings, 32d Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1908, p. 829.Sagenella striata James, Paleontologist, No. 3, 1899, p. 22.?Bassler, Proc. U. S.Nat. Mus., 30, 1906, p. 53.Eden: Cincinnati, Ohio, and vicinity.Observation.?Sagenella striata was foimded upon the expanded base of thisspecies.Escharopora angularls Ulrich.Escharopora angularis Ulrich, Geol. Minnesota, 3, 1893, p. 168, pi. 12, figs. 1-4,30, 31.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 344, fig. 504a.Black River (Platteville and Decorah): Minneapolis, etc., Minnesota; HighBridge, Kentucky.Cotypes.?Cat. No. 43538, U.S.N.M.Escharopora (Ptilodictya) angusta Hall. See Ptilodictya angusta,Escharopora briareus (Ulrich).Ptilodictya briareus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 165,pi. 7, figs. 6-6b.Escharopora briareus Uhich, Geol. Minnesota, 3, 1893, p. 167.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, p. 239.Stones River (Lebanon): Lebanon, Shelbyville, and Columbia, Tennessee.Holotype?Cat. No. 43728, U.S.N.M.Observation.?The form called by Saffora Ptilodictya multiramis (not defined)is proliably referable to this species.Escharopora confluens Ulrich.Escharopora confluens Ulrich, Geol. Minnesota, 3, 1893, p. 171, pi. 13, figs. 1-11.Black River (Decorah): Minneapolis, etc., Minnesota.Cotypes.?Cat. No. 43539, U.S.N.M. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 499Escharopora falclformls (Nicholson).Ptilodictya criicil'ormis D'Orbigny, Prodr. de Pal., 1, 1849, p. 21 (not defined). ? Boule and Thevenin, Ann. de Pal., 1, fasc. 1, 1906, p. 4, pi. 1, figs. 7-9.Ptilodictya falciformis Nicholson, Ann. Mag. Nat. Hist., 4th ser., 15, 1875, p. 177,pi. 14, figs. 1-lb; Pal. Ohio, 2, 1875, p. 259, pi. 25, figs. 7, 7b; Pal. ProvinceOntario, 1875, p. 13, fig. 2.?Zittel, Handb. Pal., 1, 1880, p. 604, fig. 431.?Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 265, pi. 12, fig. 1.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 827, figs.Escharopora falciformis Ulrich, Geol. Minnesota, 3, 1893, p. 167.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 156.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 830, pi. 16, figs. 5, 5a.Escharopora recta Quenstedt, Roehren-und Sternkorallen, 1881, p. 94, pi. 146, pp.69, 70.Crateripora lineata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 30, pi. 7,figs. 28, 28a.Crateripora lineata var. expansa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879,p. 30.Maysville: Cincinnati, Ohio, and vicinity (Mt. Hope, Fairmount); Nashvilleand Columbia, Tennessee (Leipers); Appalachians of Tennessee and Virginia.Plesiotypes.?Cat. Nos. 43729, 43730, U.S.N.M. Eolotype of C. lineata and var.expansa.Observation.?Crateripora lineata and var. expansa were applied to the articu-lating basal sockets of this species before theii" true nature was known.Escharopora hilll (James).Ptilodictya Hilli James, Paleontologist, No. 1, 1878, p. 4.?Uhich, Jour. CincinnatiNat. Hist., 5, 1882, pi. 7, figs. 7, 7a.?Nettleroth, Kentucky Fossil Shells, 1885,p. 30, pi. 33, figs. 1, 2, 4, 5.?Ukich, Geol. Minnesota, 3, 1893, p. 167.?Nickles,Bull. Kentucky Geol. Surv., No. 5, 1905, p. 53, pi. 3, figs. 2, 3.?Bassler,Proc. U. S. Nat. Mus., 30, 1906, p. 37.Maysville (Fairmount) : Bank of the Ohio River at Cincinnati, Ohio (drift) ; Boyleand Lincoln Counties, Kentucky.Plesiotypes.?Gsit. Nos. 43724, 51377, U.S.N.M.Escharopora libana (Safford).Ptilodictya? libana Safford, Geol. Tennessee, 1869, p. 286.Escharopora libana Ulrich, Geol. Minnesota, 3, 1893, p. 167.Stones River (Lebanon): Lebanon, Tennessee.Cotypes.?Ga.t. No. 43477, U.S.N.M.Escharopora? limitaris Ulrich.Escharopora? limitaris Ulrich, Geol. Minnesota, 3, 1893, p. 172, figs. 9a-b, pi. 13,figs. 12, 13.Black River (Decorah): Minneapolis and Preston, Minnesota; Lake Nipissing,Ontario.Cotypes.?Cat. No. 43807, U.S.N.M.Escharopora maculata (Ulrich).Ptilodictya maculata Ulrich Jour., Cincinnati Soc. Nat. Hist., 5, 1882, p. 163, pi.6, 17, pi. 7, figs. 4, 4a; Geol. Surv. Illinois, 8, 1890, fig. 6b (p. 317).Escharopora maculata Ulrich, Geol. Minnesota, 3, 1893, p. 167.Maysville (Fairmount): Cincinnati, Ohio, and vicinity.Cotypes.?Gat. No. 43726, U.S.N.M. 500 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Escharopora pavonia (D'Orbigny).Ptilodictya pavonia D'Orbigny, Prodr. de Pal., 1, 1849, p. 22.?Ulrich, Jour. Cin-cinnati Soc. Nat. Hist., 5, 1882, p. 163, pi. 7, figs. 3, 3d.Chsetetes pavonia Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 267,pi. 19, figs. 4, 4a.?Roniinger, Proc. Acad. Nat. Sci. Philadelphia, 1866, p.116.?Quenstedt, Roehren-und Sternkorallen,1881, p. 79, pi. 146, figs. 21-25.Monticulipora pavonia ^lilne-Edwards, Hist. Nat. des. Corall., 3, 1860, p. 276.?James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 18.?James,ibid., 18, 1895, p. 70.Monticulipora (Monotrypa) pavonia Nicholson, Genus Monticulipora, 1881, p.195, fig. 41, pi. 6, figs. 3, 3a.Monotrypa pavonia Nicholson in Steinmann, Neues Jahrb. Min., Geol. Pal., 1,1882, pi. 4, fig. 7.Nicholsonia pavonia Waagen and Wenzel, Pal. Indica, 13th ser., 1886, p. 874.Heterodictya pavonia Uhich, Catal. Foss. Cincinnati Group, 1880, p. 10.Escharopora pavonia UHch, Geol. Minnesota, 3, 1893, p. 167.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, p. 240.?Bassler, Proc. U. S. Nat.Mus., 26, 1903, p. 571, pi. 20, figs. 3, 4; ibid., 30, 1906, p. 37.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 156.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 832, pi. 16, fig. 6; pi. 29, fig. 6.Cyclopora Jamesi Prout, Trans. St. Louis, Acad. Sci., 1, 1859, p. 578.Stictopora clatlu-atula James, Catal. Foss. Cincinnati Group (not defined).Cheetetes? clathratulus Nicholson, Quart. Jour. Geol. Soc. London, 30, 1874, p. 509,pi. 30, figs. 1, lb; Pal. Ohio, 2, 1875, p. 209, pi. 22, figs. 2, 2b; Ann. Mag. Nat.Hist., 4th ser., 18, 1876, p. 91, pi. 5, figs. 9, 9a.Maysville: Cincinnati, Ohio, and vicinity (Fairmount); Central Tennessee(Leipers).Plesiotype.?Ca.t. No. 43725, U.S.N.M. (Ukich).Observation.?Boule and Thevenin have refigured D'Orbigny's so-called typesof this species, but unfortunately chose a specimen of Peronopora decipienafor this purpose. D'Orbigny's original description and Edwards and Ilaime'afigures leave no doubt that the author of this species had this abundantEscharopora in mind.Escharopora ponderosa (Ulrich).Ptilodictya ponderosa Ulrich, Amer. Geol., 1, 1888, p. 308.Trenton (Upper): Covington, Kentucky.Escharopora raiuosa (Ulrich).Ptilodictya ramosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1888, p. 164, pi. 7,figs. 5, 5a.Escharopora ramosa Ulrich, Geol. Minnesota, 3, 1893, p. 167.Stones River (Lebanon): Lebanon, Tennessee.Eolotype?Cat. No. 43727, U.S.N.M.Escharopora recta Hall.Escharopora recta Hall, Pal. New York, 1, 1847, p. 73, pi. 26, figs, la-g.?Hitch-cock, Geol. Vermont, 1, 1861, p. 290, fig. 188.Ptilodictya recta Emmons, Amer. Geology, 1, pt. 2, 1855, p. 205, pi, 7, figs. la-d. ? Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 158, fig. 120a.?Cham-berlin, Geol. Wisconsin, 1, 1883, p. 153, fig.?Lesley, Geol. Surv. Pennsylva-nia, Rep. P 4, p. 828, figs.Trenton: Middleville and Jacksonburg, New York; Canada and Minnesota.Escharopora recta Quenstedt. See Escharopora falciformis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 501Escharopora recta nodosa Hall.Escharopora recta var. nodosa Hall, Pal. New York, 1, 1847, p. 73, pi. 26, fig. 2.Trenton: Middleville andJacksonburg, New York.Escharopora siluriana Weller. See Diplostenopora sjluriana.Escharopora subrecta (Ulrich).Ptilodictya subrecta Ulrich, 14th Arm. Rep. Geol. Nat. Hist. Siirv. Minnesota,1886, p. 63.Escharopora subrecta Ulrich, Geol. Minnesota, 3, 1893, p. 168, pi. 12, figs. 5-29. ? Grabau and Shinier, N. A. Index Fossils, 1, p. 156, fig. 208f.?Bassler, Bull.U. S. Nat. Mus., 77, 1911, pp. 116, 117, fig. 44; Zittel-Eastman Textb. Pal.,1913, p. 344, fig. 504b.Ptilodictya (Escharopora) subrecta Sardeson, Jour. Geol., 9, 1901, p. 159, pi. B,fig. 10.Black River (Decorah) : Minneapolis, etc., Minnesota; Decorah, Iowa; and Beloit,Wisconsin; Lake Nipissing, Ontario.Ordovician (Wassalem): Uxnorm, Esthonia, Russia.Cotypes.?QsX. Nos. 43818, 43819, U.S.N.M.Etagraptus Ruedemann. See Tetragraptus subgenus Etagraptua.Ethmophyllum minganensis Walcott. See Archseoscyphia minganensis.EucALYPTocRiNiTEs Goldfuss. See Eucalyptocrinus Goldfuss.Eucalyptocrinites conicus Troost. See Eucalyptocrinus milliganse.EucALYPTOCRiNiTES CRENATUs Troost. See Eucalyptocrinus ventricosus.Eucalyptocrinites floridus Troost. See Eucalyptocrinus milliganae.Eucalyptocrinites l^vis Troost. See Eucalyptocrinus phillipsi.Eucalyptocrinites Tennessee Troost. See Eucalyptocrinus ovalis.EUCALYPTOCRINUS Goldfuss. Genotype: E. rosaceus Goldfuss.Eucalyptocrinites Goldfuss, Petrefacta, 1826, p. 214, 2d ed., pt. 1, 1862, p. 199;Agg. Mem. Soc. Sci. Nat. Neuch., 1, 1835, p. 197; Nova Acta Physico Med.,Acad. Caes. Leop. -Carol., 19, 1839, p. 335.?MuUer, Berlin Acad. Wiss.,1841, p. 210.?Roemer, Rhein. Ubergangsgeb., 1843, p. 64.?D'Orbigny,Prodrome Pal., 1, 1850, p. 45.Eucalyptocrinus Agassiz, Ann. Nat. Hist., 1, 1838, p. 447.?Hall, Pal. New York,2, 1852, p. 207.?Quen.stedt, Handb. Petref., 1852, p. 624.?McCoy, BritishPal. Rocks and Fossils, 1854, p. 57.?Roemer, Leth. Geog. (Ausg. 3), 1855,p. 257.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 306.?Bronn, Klass. Thierr.(Actin.), 1860, pi. 27.?Dujardin and Hupe, Hist. Nat. Zooph. Echin., 1862,p. 115.?Allman, Trans. Royal Soc. Edinburgh, 23, 1864, p. 249, text. fig. 5.?Hall, 15lh Rep. New York State Cab. Nat. Hist., 1865, p. 32.?Schultze,Mon. Ecliin. Eifel. Kalk., 1866, p. 90.?Hall, 20th Rep. New York StateCab. Nat. Hist, (extras, 1865), 1868, p. 321, fig. 2; rev. ed. for 1868, 1870, p.363, figs. 1-2.?Angelin, Icon. Crinoid., 1878, p. 16.?Hall, 28th Rep. NewYork State Cab. Nat. Hist., 2d ed., 1879, pis. 16-19.?Wetherby, Jour.Cincinnati Soc. Nat. Hist., 1879 (Apr.), No. 5, p. 7.?Zittel, Handb. Pal., 1,1879, p. 379.?Etheridge and Carpenter, Ann. Mag. Nat. Hist., 5th ser., 7,1881, p. 296.?Quenstedt, Handb. Petrefact., 1885, p. 963.?Wachsmuth andSpringer, Proc. Acad. Nat. Sci. Philadelphia, p. 349 (Rev. Pal., pt. 3, sec.1, p. 127).?Miller, N. A. Geol. Pal., 1889, p. 243; Amcr. Geol., 6, 1890, p. 502 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.EUCALTPTOCRINUS?Continued.347._Bather, Treatise on Zool., 3, Echinoderma, London, 1900, p. 164.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 102, fig.46_Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 148.?Grabau,Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 157; Bull. New York State Mus., 45,1901, p. 157.?Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 45.?Zittel, Grund-zuge Pal., 1, 1910, p. 164.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p 557._Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 192.Hypanthocrinites PhilUps, in Murehison's Sil. Syst., 1839, p. 672, pi. 17, fig. 3.Hypanthocrinus Hall, Pal. New York, 2, 1852, p. 178.?Salter, Cat. Camb. Sil.Foss., 1873, p. 119.?Angelin, Icon. Crin., 1878, p. 17.?Zittel, Handb. Pal.,1, 1879, p. 380.?Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 141.EucALYFTOCRiNUs ARMOSUS McChesney. See Siphonocrinus armosus.Eucalyptocrinus asper Weller.Eucalyptocrinus asper Weller, Bull. Chicago Acad. Sci., Nat, Hist, Siunr., 4, pt.1, 1900, p. 110, pi. 5, figs. 4-7.Niagaran (Racine) : Bridgeport and Hawthorne, Illinois,Eucalyptocrinus cselatus (Hall).Hypanthocrinites cselatus Hall, Geol. New York, 4, 1843, p. 113, fig. 1; tab.18, fig. 1.Eucalyptocrinus cselatus D'Orbigny, Prodr. de Pal., 1, 1849, p. 45 (gen. ref.).?Hall, Pal. New York, 2, 1852, p. 210, pi. 47, figs. 4a-e.?Roemer, Leth. geog.,1, Leth. Pal., Atlas, 1870, pi. 11, fig. 12.?Lesley, Geol. Surv. Pennsylvania,Rep. P 4, 1889, p. 228, fig.?Wachsmuth and Springer, Mem. Mus. Comp.Zool. Harvard, 20, 1897, p. 336, pi. 83, figs. 5-7.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 559.Eucalyptocrinus papulosus Hall, Pal, New York, 2, 1852, p. 211, pi, 47, figs.5a, b,Clinton (Rochester): Lockport, Rochester, etc., New York.Eucalyptocrinus c^latus Hall (1882), See Eucalyptocrinus ekodi and E, ventri-cosus.Eucalyptocrinus cselatus levls Grabau and Shimer.Hypanthocrinites decorus Hall (not Phillips), Nat. Hist. New York, Geol., 4, 1843,p. 133, fig. 2, 3; p. 144; tab. ill. 18, fig. 2.Hypanthocrinus decorus Marcou, Geol. Map United States and British Prov.,etc., 1853, p. 27, pi. 2, fig. 8.Eucalyptocrinus decorus Hall, Pal. New York, 2, 1852, p. 207, pi. 47, fig. 1, 2a-h,3a-d; p. 352, pi. 85, fig. 7.?Jones, Geol. Surv. Canada, dec. 3, 1858, p. 23,fig. 3.?Emmons, Manual Geol., 1860, p. 110, fig. 100.?Lincklaen, 14th Rep.New York State Cab. Nat. Hist., 1861, pi. 7, fig. 6.?Lesley, Geol. Siu-v. Penn-sylvania, Rep. P 4, 1889, p. 229, figs.?Grabau, Bull. Buffalo Soc. Nat. Sci.,7, 1901, p. 157, fig. 53; Bull. New York State Mus., 45, 1901, pp. 157, 158, fig. 53.Eucalyptocrinus coelatus var. le\ds Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 559, figs. 1893 and 1894.Clinton (Rochester): Lockport and Rochester, New York; Ontario.Eucalyptocrinus chicagoensis Winchell and Marcy. See Eucalyptocrinus crassus.Eucalyptocrinus conicus Shumard. See Eucalyptocrinus milliganse.Eucalyptocrinus constrictus Hall. See Eucalyptocrinus crassus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 503EucALTPTOCRiNus coRNUTUS Wachsmuth and Springer. See Callicrinua cornutns.EucALYPTOCRiNus CORNUTU8 var. EXCAVATUS Hall. See CaUicrinus comutus.Eucalyptocrinus crassus Hall.Eucalyptocrinus crassus Hall, Trans. Albany Inst., 4, 1863, p. 197.?Hall andWhitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 129, pi. 6, fig. 11.?Hall, 28thRep. New York State Mns. Nat. Hist., doc. ed. for 1875, 1877, pi. 17, figs.1-11; pi. 18, figs. 1-9; pi. 19, figs. 2, 4, 5; pi. 21, fig. 6; pi. 31, fig. 5; mns. ed.,1879, p. 141, pi. 17, figs. 1-11; pi. 18, figs. 1-9; pi. 19, figs. 2, 4, 5.?Wetherby,Jour. Cincinnati Soc. Nat. Hist., 2, 1879, pi. 8, figs. 5-8; p. 7 footnote. ? White, 2d Ann. Rep. Indiana Dep. Stat. Geol., 1880, p. 495, pi. 3, fig. 1,?Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 272, pi. 17,figs. 1-11 ; pi. 18, figs. 1-9; pi. 19, figs. 2, 4, 5.?Chamberlin, Geol. Wisconsin,1, 1883, p. 189, fig.?Miller, N. A. Geol. Pal., 1889, p. 244, fig. 302.?Wachs-muth and Springer, Mem. Miia. Comp. Zool. Harvard, 20, 1897, p. 342, pi.81, figs. 1-6, 14, 15.?Weller, Bull. Chicago Acad, of Sci., 4, 1900, p. 105, pi. 5,figs. 1, 2; p. 25, text fig. 6.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 559, fig. 1895.Eucalyptocrinus constrictus Hall, 11th Ann. Rep. Indiana Dep, Geol. Nat. Hist.,1882, p. 273, pi. 15, fig. 1; Trans. Albany Inst., 10, 1883, p. 66.Eucalyptocrinus chicagoensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist.,1, 1865, p. 90, fig.Eucalyptocrinus sp. undet. Worthen, Geol. Surv. Illinois, 6, 1875, pi. 24,figs. 2, 2a.Niagaran: Waldron, etc., Indiana; Newsom, Tennessee (Waldron); Chicago,Illinois (Racine).Eucalyptocrinus crassus Hall, 1867. See Eucalyptocrinus nodulosus.Eucalyptocrinus decorus of American authors. See Eucalytocrinus ctelatus laevis.Eucalyptocrinus depressus Miller.Eucalyptocrinus depressus Miller, Join-. Cincinnati Soc. Nat. Hist., 3, 1880,p. 232, pi. 7, figs. 1-lb.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv.,4, pt. 1, 1900, p. 114, pi. 7, figs. 5-7.?Wachsmuth and Springer, Mem. Mus.Comp. Zool., Harvard, 20, 1897, p. 349, pi. 83, figs. 3, 4a, 4b.Niagaran (Racine): Cicero and Bridgeport, near Chicago, Illinois.Eucalyptocrinus egani (Miller).Eucalyptocrinus (llypanthocrinus) egani Miller, Jour. Cincinnati Soc. Nat. Hist.,3, 1880, p. 140, pi. 4, figs, l-lc?Weller, Bidl. Chicago Acad. Sci., Nat. Hist.Surv., 4, pt. 1, 1900, p. 108, pi. 7, fig. 4.?Wachsmuth and Springer, Mem.Mus. Comp. Zool., Harvard, 20, 1897, p. 352, pi. 82, figs. 11, 12.Niagaran (Racine): Near Chicago, Illinois.Eucalyptocrinus ellipticus Miller.Eucalyptocrinus ellipticus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res.,1892, p. 648, pi. 7, fig. 4 (adv. sheets, 1891, p. 38).Niagaran (Waldron): Hartsville, Indiana.Eucalyptocrinus elrodi Miller.Eucalyptocrinus elrodi Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892,p. 650, pi. 7, figs. 9, 10 (adv. sheets, 1891, p. 40); N. A. Geol. Pal., 2dApp., 1897, p. 745, figs. 1351, 1352.?Wachsmuth and Springer, Mem. Mus.Comp. Zool., Harvard, 20, 1897, p. 339, pi. 81, fig. 7a, 8-13.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 559, fig. 1896. 504 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Eucalyptocrinus elrodi?Contmued.Eucalyptocrinus ccelatus Hall, Trans. Alb. Inst., 4, 1863, p. 226; 20tli Rep. NewYork State Cab. Nat. Ilist. (extras, 1865), 1868, p. 321, fig. 1; p. 329; rev. ed.,1870, p. 368; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1877,pi. 16, figs. 1-10; pi. 19, figs. 1, 3, 6, 7; mus. ed., 1879, p. 142, pi. 16, figs.1-10; pi. 19, figs. 1, 3; llth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882,p. 274, pi. 15, fig. 2; pi. 16, figs. 1-10; pi. 19, figs. 1, 3.Eucalyptocrinus subglobosus Miller, 17tli Ann. Rep. Indiana Dep. Geol. Nat.Res., 1892, p. 647, pi. 7, fig. 3 (adv. sheets, 1891, p. 37); N. A. Geol. Pal., 2dApp., 1897, p. 745, fig. 1354.Niagaran (Waldron) : Hartsville and Waldron, Indiana; Newsom, Tennessee.Eucalyptocrinus extensus (Troost).Eucalyptocriuites extensus Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).Eucalyptocrinus extensus Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370. ? Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 49, pi. 13, figs. 9, 10.Niagaran (Brownsport) : Decatur County, Tennessee.Holotype?Cat. No. 39961, U.S.N.M.Eucalyptocrinus gibbosus (Troost).Eucalyptocriuites gibbosus Troost, Amer, Jour. Sci. Arts, 2d ser., 8, 1849, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61 (nom. nud.).Eucalyptocrinus gibbosiis Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370.Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 54, pi. 10, figs. 3, 4.Niagaran (Brownsport): Decatur County, Tennessee.Holotype?Cat. No. 39959, U.S.N.M.Eucalyptocrinus goldfussi (Troost).Eucalyptocrinites Goldfussi Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).Eucalyptocrinus goldfussi Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370.Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 52, pi. 15, figs. 5, 6.Niagaran (Brownsport) : Decatur County, Tennessee.Holotype.?Cat. No. 39953, U.S.N.M.Eucalyptocrinus gorbyi Miller. See Eucalyptocrinus magnus.Eucalyptocrinus inconspectus Ringueberg.Eucalyptocrinus inconspectus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia,1884, p. 148, pi. 3, fig. 5.?Wachsmuth and Springer, Mem. Mus. Comp. Zool.,Harvard, 20, 1897, p. 346, pi. 83, fig. 1, 2.Niagaran (Lockport): Lockport, New York.Eucalyptocrinus inornatus Weller.Eucalyptocrinus inornatus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv.,4, pt. 1, 1900, p. 15, pi. 6, figs. 3, 4.Niagaran (Racine): Bridgeport and Hawthorne, Illinois.EucALYPTOCRrNus LAEVis Shumard. See Eucalyptocrinus phillipsi.Eucalyptocrinus lindabil Wachsmuth and Springer.Eucalj'ptocrinus lindahli Wachsmuth and Springer, Amer Geol., 10, 1892, p.139; Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 347, pi. 82, fig. 9.?Foerste,Jour. Geol., 11, 1903, p. 712.?Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 47,pi. 12, figa. 5, 6. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 505Eucalyptocrlniis lindahli?Continued.Eucalj-ptocrinus wortheni Miller and Giurley, Bull. Illinoia State Mua. Nat.Hist., 3, 1893, p. 53, pi. 4, fig. 2.Eucalyptocrinites splendidus Troost (not Hall and Whitfield), Amer. Jour. Sci.Arts, 2d eer., 8, 1849, p. 419 (nom. nud.); Proc. Amer. Assoc. Adv. rici., 2,1850, p. 60 (nom. nud.).Niagaran (Brownsport) : Wayne County, Tennesvsee.Plesiotype.?Cat. No. 399G2, U.S.N.M. (Troost'a type of E. splendidus).Eucalyptocrinus magnus Worthen.Eucal\^)tocrinu8 magnus Worthen, Geol. Surv. Illinois, 6, 1875, p. 501, pi. 25,fig. 3.?Wachsmuth and Springer, Mem. Mua. Comp. Zool. Harvard, 20, 1897,p. 348, pi. 82, figs. 7, 8.?Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 116,pi. 6, fig. 7.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 560.Eucalj-ptocrinus gorbyi Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana,1892, p. 649, pi. 7, figs. 5, 6 (adv. sheets, 1891, p. 39); N. A. Geol. Pal.,2d App., 1897, p. 745, fig. 1353.Niagaran: WajTie County and Newsom, Tennessee (Waldron); Hawthorne,Illinois (Racine).Eucalyptocrinus milliganse Miller and Gurley.Eucalj'ptocrinites conicus Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61 (nom. nud.).Eucalyptocrinus conicus Shumard, Trans. Acad. Sci. St. Louis, 2, No. 2, 1866,p. 370.Eucalyiitocrinitea floridus Troost, MS., 1850.Eucalyptocrinus milliganse Miller and Gurley, Bull. Illinois State Mus. Nat.Hist., 10, 1896, p. 88, pi. 5, figs. 4-6.Eucalyptocrinus milligani Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 558, fig. 1892.?Wood, Bull., U. S. Nat. Mus., 64, 1909, p. 50, pi. 5, fig. 13.Niagaran (Brownsport): Decatur County, Tennessee.Plesiotypes.?Cat. Nos. 39957, 39958, U.S.N.M. (Troost'a type of E. conicus andE. floridus).Eucalyptocrinus muralis Ringueberg.Eucalyptocrinus muralis Ringueberg, Annals New York Acad. Sci., 5, 1890, p.305, pi. 3, fig. 3.Niagaran (Lockport-Gasport member) : Lockport, New York.Eucalyptocrinus nashvillae (Troost).Eucalyptocrinites Nashvillye Troost, Amer. Jour. Sci Arts, 2d ser., 8, 1849, p.419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).Eucalyptocrinus nashvilte Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p.370.?Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 53, pi. 15, figs. 7, 8.Niagaran (Brownsport): Decatur County, Tennessee.Eolotype.?C&t. No. 39955, U.S.N.M.Eucalyptocrinus nodulosus Weller.Eucalyptocrinus nodulosus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv.,4, pt. 1, 1900, p. 109, pi. 7, figs. 1-3.Eucalyptocrinus crassus Hall, 20th Rep. New York State Cab. Nat. Hist., 1867,p. 323, pi. 11, fig. 2; rev. ed., 1870, p. 365, pi. 11, fig. 2.Niagaran (Racine): Bridgeport and Romeo, Illinois. 506 BULLETIN 92, UK[TED STATES NATIONAL MUSEUM.Eucalyptocrinus obconicus Hall.Eucalyptocrinus obconicus Hall, 20th Rep. New York State Cab. Nat. Hist.,1867 (extras, 1865), p. 323, pi. 11 (2), fig. 1; rev. ed. 1870, p. 365, pi. 11, fig. 1.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig.?Wachsmuth and Springer,Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 353, pi. 83, fig. 13.?Weller,Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 109, pi. 7, fig. 8.?Slocom, Field Col. Mus., 2, Geol. Series, 1908, p. 301, pi. 86, figs. 1, 2.Niagaran (Racine): Racine, Wisconsin; Chicago, Illinois.Eucalyptocrinus ornatus Hall.Eucalyptocrinus ornatus Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 20.?Winchelland Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 91.?Hall, 20th Rep.New York State Cab. Nat. Hist., 1868 (extras, 1865), p. 329, pi. 11, figs. 4. 5;rev. ed., 1870, p. 366, pi. 11, figs. 4, 5.?Chamberlin, Geol. Wisconsin, 1,1883, p. 191, fig.?Wachsmuth and Springer, Mem. Mus. Comp. Zool. Har-vard, 20, 1897, p. 340, pi. 82, fig. 10.?Weller, Bull. Chicago Acad. Sci., 4,1900, p. Ill, pi. 6, figs. 5, 6.Niagaran (Racine): Racine, Wisconsin; Bridgeport and Romeo, Illinois.Eucalyptocrinus ovalis Hall.Eucalyptocrinites ovalis Troost, Amer. Jour. Sci. Arts, 2d eer., 8, 1849, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (uom. nud.).Eucalyptocrinus ovatus Hall (in error for E. ovalis), 28th Rep. New York StateMus. Nat. Hist., doc. ed., 1875, 1877, pi. 17, figs. 11, 12; mus. ed., 1879, p. 143,pi. 17, figs. 12, 13.Eucalyptocrinus ovalis Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1882,p. 275, pi. 17, figs. 12, 13.?^Wachsmuth and Springer, Mem. Mus. Comp. Zool.Harvard, 20, 1897, p. 344, pi. 82, figs. 1-6.?Grabau, Amer. Jour. Sci., 16, 1903,p. 299.?Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 48, pi. 11, fig. 3.Eucalyptocrinites Tennesseae Troost, Amer. Jour. Sci. Arts., 2d ser., 8, 1849, p.419; Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 61 (nom. nud.).?Shumard,Trans. Acad. Sci. St. Louis, 2, 1866, p. 370.Niagaran: Decatur and Perry Counties, Tennessee (Brownsport); Waldron andHartsville, Indiana; Newsom, Tennessee (Waldron).Plesiotypes.?Cat. No. 39952, U.S.N .M (Troost's type of E. ovalis).Eucalyptocrinus ovatus Hall. See Eucalyptocrinus ovalis.Eucalyptocrinus papulosus Hall. See Eucalyptocrinus coelatus.Eucalyptocrinus phillipsi (Troost).Eucalyptocrinites laevis Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.)Eucalyptocrinus Isevis Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 370.Eucalyptocrinites Phillipsii Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).Eucalyptocrinus phillipsi Shumard, Trans. Acad. Sci. St. I-ouis, 2, 1866, p. 370. ? Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 51, pi. 10, figs. 9, 10; pi. 13,figs. 2, 3, 4.Niagaran (Brownsport): Decatur County, Tennessee.nolotype and plesiotype.?Cat. Nos. 39964, 39966, U.S.N.M. (Troost's types of E.Isevis and E. phillipsi).Eucalyptocrinus proboscldjilis Miller.Eucalyptocrinus proboscidalis Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882,p. 224, pi. 9, fig. 2.?Wachsmuth and Springer, Mem. Mus. Comp. Zool.Harvard, 20, 1897, p. 352, pi. 82, fig. 14.Niagaran (Guelph): Pontiac, Ohio. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 507EucALYPTOCRiNUS RAMiFER Roemcr. See Callicrinus ramifer.Eucalyptocriniis rotundus Miller.Eucalyptocriuus rotundus Miller, Jour. Cincinnati See. Nat. Hist., 5, 1882, p. 82,pi. 3, figs. 4, 4b.?Wachsmuth and Springer, Mem. Mus. Comp. Zool. Har-vard, 20, 1897, p. 350.?Weller, Bull. Chicago Acad. Sci. Nat. Hist. Surv., 4,pt. 1, 1900, p, 113, pi. 5, fig. 3.Niagaran (Racine): Near Chicago, Illinois.Eucalyptocrinus splendidus Hall and "Vlfcitfield.Eucalyptocriuus splendidus Hall and ^\^litfield, Geol. Surv. Ohio, Pal., 2, 1875,p. 128, pi. 6, fig. 12.?Wachsmuth and Springer, Mem. Mus. Comp. Zool.Harvard, 20, 1897, p. 350.Niagaran (Guelph): Springfield, Ohio.Eucalyptocrinus splendidus Troost. See Eucalyptocrinus lindahli.Eucalyptocrinus springer! Foerste.Eucalyptocrinus springeri Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 99,pi. 4, fig. 73.Niagaran (Waldron): Newsom, Tennessee.EucALTPTOCRiNUS SUBQLOBOSUS Miller. See Eucalyi^tocrinus ebodi.Eucalyptocrinus Tennessee Shumard. See Eucalyptocrinus ovalis.Eucalyptocrinus tuberculatus Miller and Dyer.Eucalyptocriuus tuberculatus Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1,1878, p. 36, pi. 2, figs. 9, 9a.?Miller, N. A. Geol. Pal., 1889, p. 244, fig. 303.?Wachsmuth and Springer, Mem. Mus. Zool. Harvard, 20, 1897, p. 337, pi.83, figs. 8-10.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 560.Niagaran (Waldron): Waldron and Hartsville, Indiana; Newsom, Tennessee.Eucalyptocrinus turbinatus Miller.Eucalyptocrinus turbinatus Miller, Cincinnati Soc. Nat. Hist., 5, 1882, p. 82, pi. 3,figs. 5, 5a.?Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20,1897, p. 351, pi. 82, fig. 13.?Weller, Bull. Chicago Acad. Sci. Nat. Hist.Surv., 4, pt. 1, 1900, p. 107, pi. 6, figs. 1, 2.Niagaran (Racine): Near Chicago, Illinois.Eucalyptocrinus ventricosus Wachsmuth and Springer.Eucalyptocrinus ventricosus Wachsmuth and Springer, Mem. Mus. Comp, Zool.Harvard, 20, 1897, p. 341, pi. 83, figs. 11, 12.?Foerste, Jour. Geol., 11, 1903,p. 712.?Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 54.Eucalyptocrinus caelatus Roemer (not Hall, 1843), Sil. Fauna West. Tennessee,Breslau, 1860, p. 48, pi. 4, figs. 3a-e.Eucalyptocrinites crenatus Troost MS., 1850.Niagaran (Brownsport): Decatur County, Tennessee.Plesiotype.?C&t. No. 39956 U.S.N.M. (Troost's type of E. crenatus).Eucalyptocrinus wortheni Miller and Gurley. See Eucalyptocrinus lindahli.EUCHASMA Billings. Genotype: Conocardium blumenbachi Billings.Euchasma Billings, Geol. Surv. Canada, Pal. Foss., 1, 1865, p. 360.Euchasma blumenbachi (Billings).Conocardium Blumenbachii Billings, Canadian Nat. Geo!., 4, 1859, p. 350; Geol.Canada, Geol. Surv. Canada, 1863, p. 113, fig. 22a, b. 508 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Euchasma blumenbachl?Continued.Euchasma Blumenbachia Billings, Geol. Surv. Canada, Pal. Fosa., 1, 1865, pp.220, 361, fig. 348.Canadian: Mingan Islands, Canada; Port aux Choix, Table Head, and CapeNorman, Newfoundland (Quebec?G. H.).EUCHEIROCRINTJS Meek and Worthen. Genotype: Cheirocrinus chrysalis Hall.Eucheirocrinus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1869,p. 73; Geol. Surv. Illinois, 5, 1873, pp. 443, 502.?Bather, Kongl. Sv. Vet.Akad. Handl., 25, No. 2, 1893, pp. 21, 61, fig. 13b; Treatise on Zool., pt. 3,Ecliinoderma, London, 1900, p. 148, figs. 61, 62.?Wachsmuth, Zittel-East-man Textb. Pal., 1, 1900, p. 154.?Springer, ibid., 2d ed., 1913, p. 213.Cheirocrinus Hall (not Eichwald), 13th Rep. New York State Cal). Nat. Hist.,1860, p. 122.?Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 358.?Meekand Worthen, Geol. Surv. IlUnois, 5, 1873, p. 443.Calceocrinus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 562.?^Miller,N. A. Geol. Pal., 1889, p. 230; 2d App., 1897, p. 740.Proclivocrinus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 396, pi. 11,figs. 2, 4.?Bather, Ann. Mag. Nat. Hist., 6th Ser., 5, 1890, p. 332, pi. 14, fig.10; Treatise on Zool. (Lankester), pt. 3, 1900, p. 148. (Genotype: Calceo-crinus radiculus Ringueberg.)Eucheirocrinus chrysalis (Hall).Cheirocrinus clirysalis Hall, 13th Rep. New York State Cab. Nat. Hist., 1860, p.123, figs. 1-5.Calceocrinus chrysalis Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 358. ? Hall, 28th Rep. New York State Mus. Nat. Hist., Mus. ed., 1879, p. 147, fig. 2;11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 281, fig. 2.Proclivocrinus chrysalis Ringueberg, Annals New York Acad. Sci., 4, 1889, p.399, pi. 10, figs. 7, 13.Cremacrinua chrysalis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, pp. Ill, 113 (gen. ref.).Clinton (Rochester): Lockport, New York.Eucheirocrinus radiculus (Ringueberg).Calceocrinus radiculus Ringueberg, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p.120, pi. 5, figs. 3, 3a.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 503.Cremacrinus radiculus Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Sur\-. Minnesota,1886, pp. Ill, 113 (gen. ref.).Proclivocrinus radiculus Ringueberg, Annals New York Acad. Sci., 4, 1889, p.397, pi. 10, fig. 6.Clinton (Rochester): Lockport, New York.Observation.?Probably the same as E. chrysalis (Hall).EUCONIA Ulrich. Genotypes: Pleurotomaria etna and P. ramsayi Billings.Euconia Ulrich, GeoL Minnesota, 3, pt. 2, 1897, p. 953.?Grabau and Shimer,N. A. Index Fossils, 1, 1909, p. 642.Euconia amphitrite (Billings).Pleurotomaria Amphitrite Billings, Pal. Foss., 1, Geol. Sur\\ Canada, 1865, p. 32.(Adv. sheets, 1862.)Euconia ampliitrite Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 954 (gen. ref.).?Raymond, Ann. Carnegie Mus., 4, 1908, p. 216.Chazyan (Mingan): South Point of Large Island, Mingan Islands, Canada. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 509Eiicoula beekmanensls (A\Tiitfield).Pleurotomaria Beekmanensia Whitfield, BulL Amer. Mus. Nat. Hist., 2, 1889,p. 53, pi. 8, figs. 8-11.?Lesley, Geol. Sun\ Pennsylvania, Rep. P 4, 1889,p. 704, figs.?Koken, Neues Jahrb. Min., Geol. Pal., 6, Beilage-Band, 1889,p. 478.Euconia beekmanensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 954 (gen. ref.).Canadian (Beekmantown) : Beekmantown, New York.Euconia etna (Billings).Pleurotomaria Etna Billings, Pal. Fossils, 1, Geol. Sur\-. Canada, 18G5, p. 226,figs. 210, a, b.?Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 316, pi. 24,figs. 12, 13.?Seely, Vermont State Geol., Rep. 7, 1910, pi. 62, figs. 12, 13.Euconia etna Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 954 (gen. ref.).?Grabauand Shimer, N. A. Index Fossils, 1, 1909, p. 642, fig. 873.Canadian (Quebec?G, H): Cape Norman and Table Head, Newfoundland.Euconia? pervetusta (Conrad).Cyclostoma? pervetusta Conrad, Ann. Rep. New York State Geol. Surv., 1838, p.113; ibid., 1839, p. 65.Pleurotomaria pervetusta Hall, Rep. Geol. 4tli Dist., New York, 1843, p. 48, figs.1, 2.?Owen, Amer. Jour. Sci. Arts, 48, 1*845, p. 300, figs. 1, 2.?Lincldaen,14th Rep. New York State Cab. Nat. Hist., 1861, pi. 5, figs. 1, 2.?Hall, Pal.New York, 2, 1852, p. 12, pi. 4 (bis), figs. 3a-d.?Grabau, Bull New York StateMus., 45, 1901, p. 213, fig. 143; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 213,fig. 143.Euomphalus pervetustus Hall, Geol. New York, 4, 1843, p. 48, figs. 1, 2; tab. ill. 2,figs. 1, 2.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 231.Straparollus pers^etustua D'Orbigny, Prodr. de Pal., 1, 1849, p. 30 (gen. ref.).Cyclonema pen'etusta Wliitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11,pt. 2, 1899, p. 162 (gen. ref.).Euconia(?) pervetusta Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 642,fig. 874.Upper Medinan: Medina and Lockport, New York.Euconia ramsayi (Billings).Pleurotomaria Ramsayi Billings, Canadian Nat. Geol., 4, 1859, p. 351, figs. 3, 4;Geol. Canada, Geol. Surv. Canada, 1863, p. 117, figs. 26a, b.?Miller, N. A.Geol. Pal., 1889, p. 422, fig. 701.?Lesley, Geol. Surv. Pennsylvania, Rep.P4, 1889, p. 714, figs.Euconia ramsajd Ulrich, Geol. Minnesota, 3, pt. ?, 1897, p. 954 (gen. ref.). ? Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 642.Canadian (Romaine): Mingan Islands, Canada.EucRiNus AngeUn. See Dimerocrinus Phillips.EuGASTER Hall. See Eugasterella Schuchert.EUGASTERELLA Schuchert. Genotype: Eugaster logani Hall.Eugaster Hall (not Seville, 1839), 20th Rep. New York State Cab. Hist., 1868,p. 290; rev. ed., 1870, p. 332.?Zittel, Handb. Pal., 1, 1879, p. 444.?Sturtz,Neues Jahrb. Min., Geol. Pal., 2, 1886, p. 151; Paloeontogi'aphica, 32, 1886,pp. 78, 83.?JVIiller, N. A. Geol. Pal., 1889, p. 244.?Sturtz, Verb, naturh.Ver. preuss. Rheinl., etc., 1893, p. 20.?Gregory, Proc. Zool. Soc. London,1897, p. 1035.Eugasterella Schuchert, in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 19; Bull.U. S. Nat. Mus., 88, 1915, p. 237. 510 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.EugastereDa concinna (Ringueberg).Eugaster concinnus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 8, pi. 1,fig. 3.Eugasterella(??) concinna Schuchert, in Freeh, Foss. Cat. 1, Anim., pt. 3, 1914,p. 19; Bull. U. S. Nat. Mus., 88, 1915. p. 239.Clinton (Rochester): Lockport, New York.EUGTRICHNITES Ami. Genotype: E. minutus Anii.Eugyrichnites Ami, Summary Bep. Greol. Surv. Canada, for 1904, 1905, p. 291.Eugyrlchnites minutus Ami.Eugyrichnites minutus Ami, Summary Rep. Geol. Surv. Canada for 1904, 1905,p. 291.Horizon uncertain: Tapley's Mill, near Woodstock, New Brunswick.EuNEMA Salter. See Trochonema subgenus Eunema.EuNEMA HisTORicuM Hudson. See Gyronema historicum.EuNEMA LEPTONOTUM Raymond. See Gyronema leptonotum.Eunema? pagoda Salter. See Ectomaria pagoda.Etjnema prisca Billings. See Ectomaria prisca.EUNICITES Ehlers. Genotype: E. avitus Ehlers.Eunicites Ehlers, Palseontographica, 17, 1868, p. 147.?Zittel, Handb. Pal., 1,1880, p. 565.?Miller, N. A. Geol. Pal., 1889, p. 518.?Grabau and Shimer,N. A. Index Fossils, 1910, 2, p. 241.Eunicites chiromorphus Hinde.Eunicites chiromorphus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 381,pi. 20, fig. 10.Upper Medinan (Cataract): Toronto, Ontario.Eunicites clintonensis Hinde.Eunicites clintonensis Hinde, Quart. Jomx. Geol. Soc. London, 35, 1879, p. 381,pi. 19, fig. 21.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 242, fig.1532a.Upper Medinan (Cataract) : Toronto, Ontario.Eunicites conflnis Foerst^.Eunicites conflnis Foerste, Amer. Geol., 2, 1888, p. 418, fig. 6; Geol. Surv. Ohio,Pal., 7, 1893, p. 517, fig. 6.Richmond (Elkhorn) : Todds Fork, Clinton County, Ohio.Eunicites contortus Hinde.Eunicites contortus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 375, pi.18, fig. 4.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig.1530d.Cincinnatian (Pulaski): Toronto, Ontario.Eunicites coronatus Hinde.Eunicites coronatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 381,pi. 20, fig. 9.Upper Medinan (Cataract): Toronto, Ontario.Eunicites cbistatus Miller. See Arabellites cristatus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 511Eunlcltes? dlgitatus Hinde.Eunicites? digitatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 376, pi.19, fig. 3.Cincinnatian (Pulaski): Toronto, Ontario.Eunicites falcatus Foerste.Eunicites falcatus Foerste, Amer. Geol., 2, 1888, p. 418, fig. 5; Geol. Surv. Ohio,Pal., 7, 1893, p. 517, fig. 5.Richmond (Elkhorn): Todds Fork, Clinton County, Ohio.Eunicites gracilis Hinde.Eunicites graciUa Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 376, pi.19, fig. 3.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 242, fig. 1528c.Cincinnatian (Pulaski): Toronto, Ontario.Eunicites pauluius Foerste.Eunicites pauluius Foerste, Amer. Geol., 2, 1888, p. 418, fig. 7; Geol. Surv.Ohio, Pal., 7, 1893, p. 517, fig. 7.Richmond (Elkhorn): Todds Fork, Clinton Coimty, Ohio.Eunicites major Hinde.Eunicites major Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 374, pi. 18,fig. 1.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 241, fig. 1530a.(Enonites major Miller, N. A. Geol. Pal., 1889, p. 519 (gen. ref.).Cincinnatian (Pulaski): Toronto, Ontario.Eunicites perdentatus Hinde.Eunicites perdentatus Hinde, Quart. Joirr. Geol. Soc. London, 35, 1879, p. 375,pi. 18, fig. 6.Lumbriconereites perdentatus Miller, N. A. Geol. Pal., 1889, p. 519 (gen. ref.).Cincinnatian (Pulaski): Toronto, Ontario.Eunicites simplex Hinde.Eunicites simplex Hinde, Quart. Join". Geol. Soc. London, 35, 1879, p. 376, pi.19, fig. 2.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 242, fig.1528b.Cincinnatian (PiUaski) : Toronto, Ontario.EuNicriES (Nereidavus) varians Hinde. See Nereidavus varians.EUNOA Clarke. Genotype: E. accola Clarke.Eunoa Clarke, Bull. New York State Mus., 52, 1902, p. 606.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 377.Eunoa accola Clarke.Eunoa accola Clarke, Bull. New York State Mus., 52, 1902, p. 607, pis. 5, 6.Canadian (Deepkill): Deepldll, Rensselaer County, New York.EUOMPHALOPTERUS Roemer. Genotype: Euomphalus alatus Hisinger.Euomphalopterus Roemer, Leth. geog. 1, Leth. Pal., 1876, Atlas, Expl., pi. 14,fig. 9a.?Zittel, Handb. Pal., 2, 1882, p. 206.?Koken, Neues Jahrb. f. Min.,Geol., Pal., 6 Beilage-Band, 1889, p. 438; Neues Jalu-b. f. Min., Geol., Pal.,1, 1893, p. 15; Die Leitfossilien, Leipzig, ]896, p. 102, text fig. 80.?Ulrichand Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 932.?Grabau and Shimer,N. A. Index Fossils, 1, 1909, p. 629.?Dall, Zittel-Eastman Textb. Pal.,2ded., 1913, p. 527, 512 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Euomphalopterus alatus americanus Kindle and Breger.Euomphalopterus alatus var. americanvia Kin,dle and Breger, 28tli Ann. Rep.Dept. Geol. Nat. Res. Indiana, 1904, p. 459, pi. 13, fig. 6.Euomphalopterus alatus var. Kindle and Breger, ibid., 1904, p. 461.Niagaran: Little Deer Creek, Carroll County, Indiana.Euomphalopterus alatus limatoideus Kindle and Breger.Euomphalopterus alatus yar. limatoidea Kindle and Breger, 28th Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1904, p. 461, pi. 14, fig. 4.Niagaran: Delphi, Indiana.Euomphalopterus alatus obsoletus Ulrich.Euomphalopterus alatus-obsoletus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 934,figa. 5g-i.Niagaran (Waldron): Waldron, Indiana.Euomphalopterus elora (BiUings).Pleurotomaria Elora Billings, Geol. Canada, Geol. Sivrv. Canada, 1863, p. 343,fig. 348; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 154, fig. 135 (adv. sheets1861).?Lesley, Geol. Siu-v. Pennsylvania, Rep. P 4, 1889, p. 708, fig.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, p. 74, pi. 11, figs. 5, 6.Euomphalopterus Elora "WTiiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906,p. 331.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 630, fig. 853.Niagaran (Guelph): Elora, Ontario.Euomphalopterus halei (Hall).Pleurotomaria halei Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 34.?Win-chell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 109.?Hall, 20thRep. New York State Cab. Nat. Hist., 1868, pp. 344, 364, pi. 15 (6), figs.13, 14 (extras, 1865); rev. ed., 1870, p. 392, pi. 15, figs. 13, 14, p. 432.?White-aves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 73, pi. 10, figs. 2, 2a.Eotomaria halei Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p.69 (gen. ref.).Trochonema halei Miller, N. A. Geol. Pal., 1889, p. 428 (gen. ref.).Euomphalopterus Halei Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4,1906, p. 330 (gen. ref.).Niagaran: Racine, Wisconsin; Bridgeport, Illinois (Racine); Durham, Ontario;and Wisconsin (Guelph).Euomphalopterus tyrrelli Parks.Euomphalopterus tyrrelli Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913,p. 36.Niagaran (Guelph): Severn River, Ontario.Euomphalopterus Valeria (Billings).Pleurotomaria Valeria Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 169. ? Wliiteaves, Pal. Foss., Geol. Siu-v. Canada, 3, pt. 1, 1884, .p. 23, pi. 4, figs.1, la; ibid., pt. 2, 1895, p. 71, pi. 11, figs. 2, 3.?Lesley, Geol. Siurv. Penn-sylvania, Rep. P 4, 1889, p. 721, figs.Euomphalopterus Valeria Wliiteaves, Pal. Foss., Geol. Slu:^^ Canada, 3, pt. 4,1906, p. 330 (gen. ref.).?Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909,p. 191, pi. 28.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 630,figs. 851h, j, 852.Niagaran (Guelph): Gault, etc., Ontaiio; Ohio.Upper Monroan (Lucaa): Salt shaft, Detroit, Michigan. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 513Euomphalopterus vclaris Whiteaves,Pleurotomaria velaris Whiteaves, Pal. Fosa., Geol. Surv. Canada, 3, pt. 2, 1895, p,72, pi. 11, figs. 4, 4a.Euomphalopterus velaria Whiteaveg, Geol. Surv. Canada, Pal. Foss., 3, pt. 4,1906, p. 330 (gen. ref.).Pleiu-otomaria cf . velaria Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 193,pi. 23, figs. 1-2.Niagaran (Guelph) : Elora, Ontario.?Upper Monroan (Anderdon): Near Amherstburg, Ontario.EUOMPHALUS McCoy. Genotype: E. pentagonalia McCoy.Euomphalus McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 34.?Brown,Illust. Foss. Conch. Great Britain and Ireland, 1849, p. 81.?King, Mon.Permian Foss. England, Pal. Soc, 1850, p. 211.?Woodward, Man. Mollusca,pt. 1, 1851, p. 145.?McCoy, British Pal. Rocks Foss., 1854, p. 297.?Pictet,Traite de Pal., 2d ed., 3, 1855, p. 153.?Goldfuss, Petrefacta Germ., 2d ed.[pt. 3, 1863, p. 75.?Meek and Worthen, Geol. Surv. Illinois, 2, p. 158.?Waagen, Mem. Geol. Surv. India, Pal. Indica, ser. 13, 1, p. 86.?Lindstrom,Kongl. Sven. Vet.-Akad. Hand!., 19, No. 6, 1881, p. 136.?Koninck, Ann. d!Mus., Royal d'Hist. Nat. de Belgique, 6, 1881, p. 136.?Zittel, Handb. Pal.,2, 1882, p. 206.?Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky,1889, p. 181.?Koken, Neues Jahrb. f. Min., Geol. Pal., 6 Beilage-Band, 1889,p. 317.?^Whidborne, Mon. Dev. Fauna South England, 1, Pal. Soc, 1891, p.p. 244.?Koken, Die Leitfossilien, Leipzig, 1896, p. 104, fig. 86, p. 106.?Pilsbry, Zittel-Eastman Textb. Pal., 1900, p. 446.?Ball, ibid., 2d ed., 1913,p. 527.Euomphalus (part) of authors. See Eccyliopterus Remele and Oxydiscus Koken,and Poleumita Clarke and Ruedemann.Euomphalus alatus var. limatoidea Kindle and Breger. See Euomphalopterusalatus limatoideus.Euomphalus calciferus Whitfield. See Eccyliomphalus calciferus.Euomphalus circinatus Whiteaves. See Eccyliomphalus circinatus.Euomphalus?? circumliratus Whitfield.Euomphalus circumliratus .Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p.308, pi. 24, fig.:. 18-21.?Seely, Vermont State Geol., Rep., 7, 1910, pi. 62,figs. 18-21.Canadian (Beekmantown): Fort Cassin, Vermont.Euomphalus expansxis Conrad. Not recognized.Euomphalus expansus Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p.273.Niagaran: Near Rome, New York, and Pendleton, Indiana.Euomphalus falrchlldl Clarke and Ruedemann.Euomphalus fairchildi Clarke and Ruedemann, Mem. New York State Mus., 5,1903, p. 75, pi. 8, figs. 3, 4.Euomphalus cf. fairchildi Grabau, Michigan Geol. Sxirv., Geol. Ser., 1, 1909, p.186, pi. 16, fig. 28. \Niagaran (Guelph) : Rochester, New York.?Upper Monroan (Lucas): Detroit, Michigan.84243??Bull. 92?15 33 514 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Euomphalus galtensls Whiteaves.Euomphalus galtensis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884,p. 21, pi. 3, figs. 9, 9a; ibid., pt. 2, 1895, p. 85.Niagaran (Guelph): Gait, Hespeler, and Durham, Ontario.Euomphalus gyroceras Roemer. See Eccyliomphalus gyroceraa.Euomphalus hemisphericus Hall. See Diaphorostoma hemisphericum.Euomphalus inornatus (Whiteaves).Trochonema inornatum \'\Tiiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884,p. 19, pi. 3, fig. 7.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p.1230, fig.Euomphalus inornatus Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p.85, pi. 13, fig. 1.Niagaran (Guelph) : Elora and Durham, Ontario.Euomphalus maclurii Troost. See Maclurites magnus.Euomphalus macrolineatus Whitfield. See Poleumita macrolineata.Euomphalus michleranus Hall. See Eccyliopterus? michleranus.Euomphalus minnesotensis Miller. See Raphistoma minnesotense.Euomphalus? minutissimua Castelnau.Euomphalus? minutissimus Castelnau, Essai Syst. Sil. I'Amerique Septent, 1843,p. 35, pi. 11, fig. 9.Ordovician?: Trenton, New York.Observation.?Not recognized. Probably internal cast of some small shell.Euomphalus (Straparollus?) mopsus Whitfield. See Straparollus mopsus.Euomphalus Pepinensis Meek. See Raphistoma pepinensis.Euomphalus Perkinsi Whitfield. See Eccyliomphalus perkinsi.Euomphalus pervetus (Conrad). Not recognized.Inachus pervetus Conrad, Proc. Acad. Nat. Sci., Philadelphia, 1843, p. 334.Euomphalus pervetus Miller, N. A. Geol. Pal., 1889, p. 404.Lead-bearing limestone: Mineral Point, Wisconsin.Euomphalus pervetustus Hall. See Euconia? pervetusta.Euomphalus polygyratus Roemer. See Polygyrata polygyratus.Euomphalus (Raphistoma) rotuliformis Meek. See Polygyrata rotuliformis.Euomphalus (Cyclonema) rucelineata Hall and Whitfield. See Poleumitarugilineata.Euomphalus sanctisab^ Roemer. See Straparollus sanctisabse.Euomphalus sinuatus Hall. See Straparollus sinuatus.Euomphalus Strongi Whitfield. See Sinuopea strongi.Euomphalus sulcatus Hall. See Poleumita? sulcata.Euomphalus triliratus Conrad. Not recognized.Euomphalus triliratus Conrad, Proc. Acad. Nat. Sci. Philadelphia, 1, 1843, p. 333.Trenton: Mineral Point, Wisconsin. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 515EuoMPHALUs (Raphistoma?) TROCHISCU8 Meek. See Polygyrata trochiscus.EuoMPHALUs UNiANGULATUs Hall. See Helicotoma uniangulata.EuoMPHALUs? VATiciNUs Hall. See Raphistoma minnesotense.Euomphalus verneuili Castelnau.Euomphalus Vemeuili Castelnau, Essai Syst. Sil. I'Amerique Septent., 1843, p.34, pi. 11, figs, la, b.Silurian: Northern shore of Lake Huron.Euomphalus winonensis Sardeson.Euomphalus vdnonensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p.96, pi. 6, fig. 1.Ozarkian (Oneota): Near Dresbach, Winona County, and near Red Wing, Good-hue County, Minnesota; Blanchardville, Wisconsin.EURTCHILINA Ulrich. Genotype: E. reticulata Ulrich.Eurycliiliua Ulrich, Cont. Micro-Pal., Geol. Surv. Canada, pt. 2, 1889, p. 52. ? Vogdes, Annals New York Acad. Sci., 5, 1889, facing p. 36.?Ulrich, Jour.Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, pp. 125, 126.? Jones, Quart. Jour.Geol. Soc. London, 46, 1890, p. 538.?Miller, N. A. Geol. Pal., 1st App., 1892,p. 707.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 658; Zittel-Eastman Textb.Pal., 1, 1900, p. 644.?Cumiugs, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 1040.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348.?Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 738.Eurychilina jequalis Ulrich.Eurychilina sequalis Ulrich. Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 129,pi. 9, figs. 5-8.Eurychilina equalis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 348figs. 1657q-s.Stones River (Ridley?): Bottom of gorge at High Bridge, Kentucky; Lebanon,Tennessee.Cotypes.?Cat. No. 41639, U.S.N.M.Eurychilina billingsi (Jones).Primitia billingsi Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 547, pi. 21,fig. 10.Anticostian (Gun River and Jupiter River) : West of Jupiter River, Anticosti.Eurychilina bulbifera Ruedemann.Eurychilina bulbifera Ruedemann, Bull. New York State Mus., 49, 1901, p. 76,pi. 5, figs. 14-17.Mohawkian (Rysedorph): Rysedorph Hill, Rennselaer County, New York.Eurychilina dianthus Ruedemann.Eurychilina dianthus Ruedemann, Bull. New York State Mus., 49, 1901, p. 78,pi. 5, figs. 1, 2, 8, 9.Mohawkian (Rysedorph): Rysedorph Hill, Rennselaer County, New York.Eurychilina frobisheri (Emerson).Primitia frobisheri Emerson, Narrative Hall's Sec. Arctic Exped., U. S. NavyDep., 1879, p. 581, fig. 8.Richmond: Frobisher Bay, Baffin Land.Plastotype?Cat. No. 60728, U.S.N.M. 516 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Eurychllina granosa Ulrich.Eurychilina granosa Ulrich, Joiir. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p.128, pi. 9, figs. 9-12.Stones River (Ridley?): Bottom of gorge at High Bridge, Kentucky.Cotypes.?Cat. No. 41616, U.S.N.M.Eurychilina jerseyensis Weller.Eurychilina jerseyensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 210, pi.13, fig. 17.Trenton: Near Iliffs Pond, New Jersey.Eurychilina latimarginata (Raymond).Primitia latimarginata Raymond, Amer. Jour. Sci., 20, 1905, p. 380.Eurychilina latimarginata Raymond, Ann. Carnegie Mus., 7, No. 2, 1911, p. 255,fig. 26.Chazyan: Chazy, Valcour Island, Crown Point, etc., New York (Day Point,Valcour); East Tennessee (Lenoir).Eurychilina longula Ulrich.Eurycliilina longula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p.127, pi. 9, figs. 3a, b, 4.Black River (Low\ille): High Bridge, Kentucky.Cotypes.?CsLt. No. 41623, U.S.N.M.Eurychilina manitobensis Ulrich.Eurycliilina manitobensis Ulrich, Geol. Surv. Canada, Cont. Micro-Pal., pt. 2,1889, p. 53, pi. 9, figs. 10, 10a.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3,pt. 2, 1895, p. 127 (loc. occ.)Richmond (Stony Mountain): Stony Mountain, Manitoba; Wyoming.Eurychilina obesa Ulrich.Emycliilina obesa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p. 129,pi. 9, fig. 13.Black River (Lowville) : High Bridge, Kentucky.Holotype.?C&t. No. 41624, U.S.N.M.Eurychilina obliqua Ruedemann.Eurychilina obliqua Ruedemann, Bull. New York State Mus., 49, 1901, p. 79, pi.5, figs. 10-12.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.Eurychilina oculifera Weller,Eurychilina oculifera Weller, Geol. Surv. New Jersey, 3, 1903, p. 210, pi. 13,fig. 16.Trenton: Near Iliffs Pond, New Jersey.Eurychillina reticulata Ulrich.Eurychilina reticulata Ulrich, Cont. Micro-Pal., Geol. Surv. Canada, pt. 2, 1889,p. 52, pi. 9, figs. 9, 9a; Geol. Minnesota, 3, pt. 2, 1894, p. 660, pi. 44, fig. 1.?Ruedemann, Bull. New York State Mus., 49, 1901, p. 76, pi. 5, fig. 3.?Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 298, fig. 46.?Grabauand Shimer, N. A. Index Fossils, 2, 1910, p. 348, fig. 1657p.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425g.Mohawkian: Minneapolis, St. Paul, etc., Minnesota (Black River-Decorah);Rysedorph Hill, New York (Rysedorph).Cotypes and plesiotypes.?Cat. Nos. 44600, 44601, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 517Eurychilina reticulata incurva Ulrich.Eurychilina reticulata incurva Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. C61, pi.44, fig. 2.Black River (Decorah): St. Paul, Minnesota.Holotype.?Cat. No. 41599, U.S.N.M.Eurychilina? solida Ruedemann.Eurychilina? solida Reudemann, Bull. New York State Mus., 49, 1901, p. 77, pi. 5,fig. 18.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.Eurychilina? striatomarglnata (Miller).Beyrichia striato-marginatus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 233,fig. 26; N. A. Geol. Pal., 1889, p. 535, fig. 979.Eiu-ychilina striatomarginata Uhich, Cont. Micro-Pal., Geol. Siu-v. Canada, pt. 2,1889, p. 52; Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1890, p. 130, pi. 9, fig.14; Geol. Minnesota, 3, pt. 2, 1894, p. 659.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 1046, pi. 13, fig. 9.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 348, fig. 1657t.Richmond (T\Tiitewater-Saluda) : Osgood, etc., Indiana.PlesioUjpe.?C-At. No. 41615, U.S.N.M.Eurychilina? subsequata Ulrich.Eurychilina? subsequata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 663, pi. 45,figs. 7-9.Black River (Decorah) : St. Paul, Minnesota.Eolotype.?Cat. No. 41628, U.S.N.M.Eurychilina subradlata Ulrich.Eurychilina subradiata Uhich, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1,1890,p. 126, pi. 9, figs, la-c, 2a-c; Geol. Minnesota, 3, pt. 2, 1894, p. 661, pi. 4, figs.3, 4, 4a.?Uhich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 299, fig. 49.?Ruedemann, Bull. New York State Mus., 162, 1912, pi. 9, fig. 16.Stones River: Lebanon, Tennessee.Black River: Dixon, Illinois, etc. (Platteville); Minneapolis, Minnesota (Decorah).Trenton (Canajoharie) : Canajoharie, New York.Cotypes and plesiotypes.?Cat. Nos. 41611, 41613, 41614, U.S.N.M.Eurychilina subradlata rensselaerlca Ruedemann.Eurychilina subradiata rensselserica Ruedemann, Bull. New York State Mus., 49,1901, p. 77, pi. 5, figs. 4-7, 13.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.Eurychilina symmetrica Ulrich.Eurycliilina symmetrica Uhich, Geol. Minnesota, 3, pt. 2, 1894, p. 663, pi. 44,figs. 5-7; pi. 45, figs. 4-6.Black River (Decorah): St. Paul and near Cannon Falls, Minnesota.Cotypes.?Cat. No. 41386, U.S.N.M.EurychUlna ventrosa Ulrich.Eurychilina ventrosa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 662, pi. 45, figs,i-3.Trenton (Prosser): Near Cannon Falls and Kenyon, Minnesota.Cotype.?Cat. No. 41625, U.S.N.M. 518 BULLETIN" 92^ UNITED STATES NATIONAL MUSEUM.EUEYDICTTA Ulrich. Genotype: E. montifera Ulrich.Eurydicta Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 389, 520.?(Ulrich in press),Miller, N. A. Geol. Pal., 1889, p. 301.?Ulrich, Geol. Minnesota, 3, 1893, p.138.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 17.?Simpson, 14thAnn. Rep. State Geol. New York for 1894, 1897, p. 527.?Nickles and Bassler,Bull. U. S. Geol. Surv., 173, 1900, p. 48.Eurydictya calhoiinensis Ulrich.Etirydictya calhounensis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 520, pi. 30,figs. 4-4c.Black River (Kimmswick): Three miles north of Cap an Gres, Calhoun County,Illinois.Sections of holotype.?Cat. No. 43754, U.S.N.M.Eurydictya montifera Ulrich.Eurydictya montifera Uhich, Geol. Surv. Illinois, 8, 1890, p. 521, pi. 30,figs. 3-3d.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897,figs. 80-82 (p. 528).Richmond (Fernvale): Wilmington, Illinois.Fragment oi holotype.?Cat. No. 43753, U.S.N.M.Eurydictya inultipora (Hall).Phsenopora multipora Hall, Foster and WTiitney's Rep. Geol. Lake Superior LandDistrict, pt. 2, 1851, p. 206, pi. 24, figs, la, b.?Uhich, Jom. Cincinnati Soc.Nat. Hist., 5, 1882, p. 171, pi. 8, figs. 7-7b.Eurydictya multipora Ulrich, Geol. Surv. Illinois, 8, 1890, p. 520; Geol. Minne-sota, 3, 1893, p. 139, pi. 6, 9-11; pi. 14, 9-11 (not pi. 7, 24, 29-31=Rhinidictyafideiis Uhich).?Nickles and Bassler, U. S. Geol. Surv., 173, 1900, p. 241.?Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 38, pi. 1, figs. 11, 12.Ptilodictya antiqua James, Paleontologist, 5, 1881, p. 37.Black River and Trenton: Escanaba River, Michigan; Burgin, Kentucky; Nash-ville, Tennessee; St. Paul, Minnesota.Plesiotypes.?Cat. No. 43604, U.S.N.M.Eurydictya multipora (in part) Ulrich. See Rhinidictya fideiis.Eurydictya sterlingensis Ulrich.Eurydictya sterlingensis Uhich, Geol. Surv. Illinois, 8, 1890, p. 522, pi. 30,figs. 2, 2a.Richmond (Maquoketa): Sterling and South Elgin, Illinois.EURTMTA Ulrich. Genotyjw: Modiolopsis plana Hall.Eurymya Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 512.?Sardeson, Amer. Geol.,30, 1902, p. 39.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 517.Eurymya alata (Ulrich).Modiolopsis alata Ulrich, Amer. Geol., 5, 5, 1890, p. 280, figs. 8a-c.Eurymya alata Uhich, Geol. Minnesota, 3, pt. 2, 1894, p. 512 (gen. ref.).Maysville (Fairmount): Cincinnati, Ohio, and \'icinity.Cotypes.?Cat. No. 46201, U.S.N.M.Eurymya plana (Hall).Modiolopsis plana Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 30; Geol.Wisconsin, 1, 1862, pp. 38 and 438, fig. 6.?Chamberlin, Geol. Wisconsin, 1,1883, p. 156, fig.?Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1892, p. 224, fig.?^\^litfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 56,pi. 7, figs. 12, 13 (?14, 15).?Sardeson, Amer. Geol., 30, 1902, p. 40, figs. 1-9. BIBLIOGRAPHIC LIST OF GENEBA AND SPECIES. 519Eurymya plana?Continued.Eurj^mya plana Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 512, pi. 36, figs. 27,28.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 518, figs. 696a, b.Black River (Platteville): Beloit, Janesville, Mineral Point, etc., Wisconsin;Minneapolis, St. Paul, etc., Minnesota.Plesiotypes.?Gat. No. 46202, U.S.N.M.Eurymya subplaua Ulrich.Eurymya eubplana Ulricli, Geol. Minnesota, 3, pt. 2, 1894, p. 513.Trenton (Hermitage): Central Tennessee and Mercer County, Kentucky.Cotypes.?C&t. No. 46203, U.S.N.M.EuRYMTA? TRUNCATA Ulricb. See Modiolodon tnmeata.EURYMTELLA WilUams. GenotjT)e: E. shaleri Williams.Eurymyella Williams, Proc. U. S. Nat. Hue., 42, 1912, p. 382.Eurymyella angularis Williams.Eurymyella angularis WilUams, Proc. U. S. Nat. Mus., 1912, p. 387, pi. 49, figs,10, 11.Silurian (Eastport): East side Seward Neck, Washington County, Maine.Holotype and paratype.?Cat. No. 58437, U.S.N.M.Eurymyella convexa Williams.Eurymyella convexa Williams, Proc, U. S. Nat. Mus., 42, 1912, p. 389, pi. 50,fig.' 10.Silurian (Eastport) : Salt works, Eastport, Maine.Holotype.?Cat. No. 58448, U.S.N.M.Eurymyella denbowensis Williams.Eiirj^myella denbowensis Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 390, pi. 50,figs. 11-14.Silurian (Pembroke): Denbow Point, Washington County, Maine.Holotype and paratype.?Cat. No. 58449, U.S.N.M.Eurymyella plana Williams.Eurymyella plana Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 388, pi. 49, fig. 14.Silurian (Eastport): East side of Seward Neck, Washington County, Maine.Holotype.?Cat. No. 58439, U.S.N.M.Eurymyella recta Williams.Eurymyella recta Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 389, pi. 49, fig. 15.Silurian (Eastport): East side of Seward Neck, Washington County, Maine.Holotype.?Cat. No. 58440, U.S.N.M.Eurymyella shaleri Williama.Eurymyella shaleri Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 385, pi. 49,figs. 1-4.Silurian (Eastport): Moose Island, etc., Washington County, Maine.Cotypes.?Cat. Nos. 58431-58433, U.S.N.M.Eurymyella shaleri breva Williams.Eurymyella shaleri var. breva Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 386,pi. 49, figs. 5-7.Silurian (Eastport): Moose Island, etc., Washington County, Maine.Cotypes.?Cat. No. 58434, U.S.N.M. 520 BULLETIlSr 92^ UNITED STATES NATIONAL MUSEUM.Eurymyella shaleri longa Williams.Eurymyella shaleri var. longa Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 397, pi.49, fig. 8.Silurian (Eastport): Moose Island, etc., Washington County, Maine.Eolotype.?Cat. No. 58435, U.S.N.M.Eurymyella shaleri minor Williams.Eurymyella shaleri var. minor Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 387,pi. 49, fig. 9; ibid., 45, 1913, p. 346, pi. 31, fig. 5.SUmian (Eastport): Sipps Bay, south of highway bridge, Washington County,Maine.Eolotype and plesiotype.?C&t. Nos. 58436, 58972, U.S.N.M.Eurymyella? simulans Williams.Eurymyella? simulans Williams, Proc. U. S. Nat. Mus., 1912, p. 388, pi. 49, figs.12,' 13.Siliurian (Eastport): East side of Seward Neck, Washington County, Maine.CotT/pes.?Gat. No. 58438, U.S.N.M.EURTPTERUS Dekay. Genotype: E. remipes Dekay,Eurypterus Dekay, Annals Lyceum Pal. New York, 1, 1825, p. 375.?Harlan,Medical, Physical Res., 1835, p. 297.?Hibbert, Trans. Royal Soc. Edin-burgh, 13, 1836, p. 281.?Com-ad, 1st Ann. Rep. New York Geol. Surv.,1837, p. 182.?Fischer de Waldheim, Bull. Soc. geol. France, 11, 1840, p. 368.?Edwards, Hist. Nat. d. Crustaces, 3, 1840, p. 422.?Conrad, 5th Ann. Rep.New York Geol. Surv., 1841, p. 38.?Roemer, Palseontographica, 1, 1848,pp. 192-193.?McCoy, British Pal. Rocks Fossils, 1854, p. 175.?Pictet,Traits de Pal., 2d ed., 2, 1854, p. 529.?Salter, Quart. Jour. Geol. Soc. Lon-don, 12, 1856, p. 27.? Nieszkowski, Archiv. f. Natmk. Liv.-Ehst-u. Kiul.,1858, 2, p. 308.?Hall, Pal. New York, 3, 1859, 1861, pp. 382; 385; 392; 395;397, figs. 1, 2; 398, fig. 3; 400, fig. 5; 403, figs. 6, 7.?Woodward, Mon. BritishFoss. Crust., Pal. Soc, 1872, p. 132.?BaiTande, Syst. Sil. du Centre Boheme,1. Suppl., 1872, p. 563.?Alth, Abhandl. der K.-K. Geol. Reichsanstalt, 7,Heft 1, 1874, p. 54.?Hall and Clarke, Pal. New York, 7, 1888, p. 49.?Schmidt,Mem. I'Acad. Imp. Sci. St. Petersb., 7 ser., 31, 5, 1883, p. 48.?Zittel,Handb. Pal., 2, 1885, p. 647.?Miller, N. A. Geol. Pal., 1889, p. 548.?Vogdes,Annals New York Acad. Sci., 1889, p. 20, pi. 1, fig. 7.?Laurie, Trans.Royal Soc. Edinbiugh, 37, 1893, p. 517; Nat. Sci., 2, 1893, p. 125; ibid., 3,1893, p. 125.?Clarke, Zittel-Eastman Textb. Pal. 1, 1900, p. 674.?Grabau,Bull. New York State Mus., 45, 1901, p. 228.?Clarke, 54th Rep. New YorkState Mus., 1901, p. 83.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p.228.?Clarke, Bull. New York State Mus., 107, 1907, p. 304.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 405.?Clarke and Ruedemann,Mem. New York State Mus., 14, 1912, p. 155.?Clarke, Zittel-Eastman Textb.Pal., 2d ed., 1913, p. 782.Onychopterus (subgenus of Eiuypterus) Clarke and Ruedemann, Mem. NewYork State Mus., 14, 1912, p. 212.?Clarke, Zittel-Eastman Textb. Pal., 1913,p. 782. (Genotype: Eurypterus kokomoensis Miller and Gurley).Tylopterus (subgenus of Eurypterus) Clarke and Ruedemann, Mem. New YorkState Mus., 14, 1912, p. 216.?Clarke, Zittel-Eastman Textb. Pal., 1913,p. 783. (Genotype: Eurypterus boylei Whiteaves).Eurypterus (Tylopterus) boylei (Whiteaves).Eurypterus Boylei WTiiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1 , 1884, p. 42,pi. 7, fig. 3; ibid., pt. 2, 1895, p. 109 (loc. occ.) BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 521Eurypterus (Tylopterus) boylei?Continued.Tylopterus boylei Clarke and Ruedemann, Mem. New York State Mus., 14, 1912,p. 218, fig. 42.Niagaran (Guelph): Elora, Ontario.Eurypterus? cestuotus Clarke. See Stylonuiais (Ctenopterus) cestrotus.Eurypterus chadwicki Clarke and Ruedemann.Eurypterus chadwirld Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 413, fig. 95.Cliazyan (Normanskill): Catskill, New York.Eurypterus cicerops Clarke. See Eusarcus(?) cicerops.Eurypterus? clevei^ndi Walcott. See EcMnognathus clevelandi.Eurypterus dekayi Hall.Eurypterus dekayi Hall, Pal. New York, 3, 1859, p. 411, pi. 82, fig. 1.?Grabau.Bull. New York State Mus., 45, 1901, p. 230; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 230.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 409.?Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 181, pi.19, fig. 2; pi. 20, fig. 1.Cayugan (Bertie): Buffalo, New York.Eurypterus eriensis Whitfield. See Eurypterus microphthalmus.Eurypterus giganteus Pohlman. See Eurypterus pustulosus.Eurypterus (Onycliopterus) kokomoensis (Miller and Gurley).Eurypterus kokomoensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist.,10, 1896, p. 90, pi. 5, fig. 1.Eiu-ypterus (Onycliopterus) kokomoensis Clarke and Ruedemann, Mem. NewYork State Mus., 14, 1912, p. 212, pi. 25, figs. 1, 2; pi. 26, fig. 2.Cayugan (Kokomo): Kokomo, Indiana.Eurypterus lacustris Harlan.Eurypterus lacustris Harlan, Trans. Geol. Soc. Pennsylvania, 1, 1834, p. 98, pi.5, fig. 2; Medical, Physical Res., 1835, p. 298, pi. 5, fig. 2.?Hibbert, Trans.Royal Soc. Edinburgh, 13, 1836, p. 281, pi. 12, fig. G.?Edwards, Hist. Nat.d. Crustaces, 3, 1840, p. 422.?Fischer de Waldheim, Bull. Soc. Geol. France,11, 1840, p. 368.?Hall, Pal. New York, 3, 1859, p. 400, text fig. 5; p. 407,pi. 81, figa. 1-11; pi. 81A, fig. 1; pi. 81B, fige. 1-5; pi. 83B, fig. 3.?Grabau,Bull. New York State Mus., 45, 1901, p. 229; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 229.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 408, fig.1708.?Clarke and Ruedemann, Mem. New York State Mua., 14, 1912, p.173, pis. 9-12; pi. 13, fig. 3; figs. 35, 36.Eurypterus robustus Hall, Pal. New York, 3, 1859, p. 410, pi. 81C, fig. 1; also seecorrigenda, p. 533.?Grabau, Bull. New York State Mus.,' 45, 1901, p. 229;Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 229.?Grabau and Shimer, N. A. In-dex Fossils, 2, 1910, p. 408, fig. 1710.Eurypterus remipes Bronn and Roemer, Leth., 3d ed., 2, 1854, p. 666, pi. 9, fig. 1.Ca^nigan (Bertie): WilUamsville, Buffalo, Black Rock, Erie County, and UnionSprings, Cayuga County, New York; Bertie, Ontario.Eurypterus lacustris pachycheirus (Hall).Eurypterus pachycheirus Hall, Pal. New York, 3, 1859, p. 412, pi. 82, figs. 1-3.?Pohlman, Bull. Buffalo Soc. Nat. Sci., 4, 1881, p. 19, fig. 7.?Grabau, Bull.New York State Mus., 45, 1901, p. 230; Bull. Buffalo Soc. Nat. Sci., 7, 1901,p. 230. 522 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Eurypterus lacustris pachycheirus?Continued.Eurypterus lacustris var. pachychirus Clarke and Ruedemann, Mem. New YorkState Mas., 14, 1912, p. 179, pi. 12, fig. 3; pi. 19, fig. 1.Cayugan (Bertie): Buffalo and Black Rock, New York.Eurypterus maria Clarke.Eurypterus maria Clarke (part) Bull. New York State Mus., 107, 1907, p. 305,pi. 1, figs. 1, 2, 4; pi. 2, figs. 2, 4, 7; pi. 3, figs. 1-5, 7.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 406, figs. 1705a-c, 1713d-e.?Clarke andRuedemann, Mem. New York State Mue., 14, 1912, p. 184, pis. 21, 22, fig. 37.Medinan (Shawangunk): Otisville, New York, and Delaware Water Gap, Penn-sylvania.Eurypterus maria (part) Clarke. See Pterygotus (Erettopterus) globiceps andStylonurus myops.Eurypterus megalops Clarke and Ruedemann.Eurypterus megalops Clarke and Ruedemann, Mem. New York State Mua., 14,1912, p. 191, pi. 83, fig. 7.Trenton (Schenectady): Near Rotterdam Junction, Schenectady County, NewYork.Eurypterus microphthalmus Hall.Eurypterus microphthalmus Hall, Pal. New York, 3, 1859, p. 407, pi. 80A, fig.7.?Clarke and Ruedemann, Mem. New York State Mus., 14, 1912, p. 192,pi. 20, figs. 2-10.Eurypterus Eriensis Whitfield, Annals New York Acad. Sci., 2, 1882, p. 196.?Claypole, Proc. Amer. Phil. Soc, 21, 1883, p. 239.?Wliitfield, Geol. Surv.Ohio, Pal., 7, 1893, p. 416, pi. 1, figs. 31, 32; Ann. New York Acad. Sci., 5,1891, p. 515, pi. 5, figs. 31, 32.?Grabau and Shimer, N. A. Index Fossils, 1,1910, p. 407, fig. 1707.?Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909,p. 208, pi. 30, figs. 31-32.Cayugan: Drift bowlder near Cazenovia; also Onondaga, Litchfield, CherryValley, and Manllus village. New York (top of Manlius); Put-in-Bay,Lake Erie (Put-in-Bay).Eurypterus myops Clarke. See Stylonurus myops.Eurypterus pachycheirus Hall. See Eurypterus lacustris pachycheirus.Eurypterus pittsfordensis Sarle.Eurypterus pittsfordensis Sarle, Bull. New York State Mus., 69, 1902, p. 1098, pi.10, fig. 7; pi. 15, figs. 1-3; pis. 16-23; pi. 24, figs. 2-5; pi. 25, figs. 2, 5, 6.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 407, fig. 1706.?Clarke andRuedemann, Mem. New York State Mus., 14, 1912, p. 196, pi. 13, figs. 4-6;pis. 14-16; pi. 17, figs. 1-6; pi. 18, figs. 3-8.Cayugan (Pittsford): Pittsford, Monroe County, New York.Eurypterus pristinus Clarke and Ruedemann.Eurypterus pristinus Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 207, pi. 83, figs. 5, 0.Trenton (Schenectady): Dettbarn quarry, Schenectady, New York.Eurypterus? (Dollchopterus?) prominens Hall.Eurypterus prominens Hall, Proc. Amer. Assoc. Adv. Sci., 33, 1884, p. 420. ? Hall and Clarke, Pal. New York, 7, 1888, p. 157, pi. 27, figs. 3, 4.Eurypterus(?) (Dolichopterus?) prominens Clarke and Ruedemann, Mem. NewYork State Mus., 14, 1912, p. 200, fig. 38.Clinton sandstone: Northern part of Cayuga County, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 523Eurypterus pustulosus Hall.Eurj^terus pustulosus Hall, Pal. New York, 3, 1859, p. 413, pi. 83B, fig. 1. ? Grabau, Bull. New York State Mus., 45, 1901, p. 229; Bull. Buffalo Soc.Nat. Sci., 7, 1901, p. 229.?Clarke and Ruedemann, Mem. New York StateMus., 14, 1912, p. 201, pis. 23, 24, figs. 39^1.Eurypterus giganteus Pohlman, Bull. Buffalo Soc. Nat. Sci., 4, 1883, p. 41, pi.2, fig. 1.Pterygotus globicaudatus Pohlman, Bull. Buffalo Soc. Nat. Sci., 4, 1883, p. 42,pi. 2, fig. 2.?Laurie, Trans. Royal Soc. Edinburgh, 37, 1893, p. 515.?Grabau,Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 231; Bull. New York State Mus., 45,1901, p. 231.Cayiigan (Bertie): Buffalo, New York.Plesiotype.?Cat. No. 60051, U.S.N.M.Eurypterus ranilarva Clarke and Ruedemann.Eurypterus ranilarva Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 208, pi. 17, fig. 7; pi. 18, figs. 1, 2.Cayugan (Kokomo): Kokomo, Indiana.Eurypterus remipes Dekay.Eurypterus remipes Dekay, Annala Lyceum Nat. Hist. Now York, 1, 1825, p. 375,pi. 29; ibid., 2, 1828, p. 273.?Harlan, Trans. Geol. Soc. Pennsylvania, 1, 1832,p. 9G, pi. 5, fig. 1; Amer. Mo. Mag., 3, 1834, p. 291; Medical, Physical Res.,1835, p. 297, fig. 1.?Bronn, Leth. Geol., 1, 1835-1837, p. 109, fig. 1.?Hibbert, Trans. Roy. Soc. Edinburgh, 13, 1836, pi. 12, fig. 7, p. 281.?Edwards, Hist. Nat. d. Crustaces, 3, 1840, p. 422.?Fischer de Waldheim,Bull. Soc. Geol. France, 11, 1840, p. 368.?Vanuxem, Nat. Hist. New York,Geol., 3, 1842, pp. 99, 100, fig.?Roemer, Palaeontographica, 1, 1848, p. 190,pi. 27.?Pictet, Traite de Pal., 2d ed., 2, 1854, p. 529, pi. 46, fig. 14.?Hall, Pal.New York, 3, 1859, p. 382; p. 403, figs. 6, 7; p. 404, pi. 80, figs. 1-12; pi. 80A, figs.1-6; 11-17; pi. 83B, fig. 2; pi. 84A, figs. 1, 2.?Emmons, Man. Geol., 18G0, p.41,.fig. 34; p. 122, fig. 4.?Chapman, Canadian Jour. , n. s., 8, 1863, p. 440, fig.227; Expos. Min. Geol. Canada, 1864, p. 191, fig. 227.?Billings, Geol. Canada,Geol. Surv. Canada, 1863, pp. 958, 959, figs. 463a, b, 464.?Woodward, Quart.Jour. Geol. Soc. London, 23, 1867, pi. 1, fig. 7.?Meek and Worthen, Amer.Jour. Sci. Arts, 2d ser., 46, 1868, footnote p. 20, p. 546.?Woodward, Mon.British Foss. Cnist., Palaeontographical Soc, 1872, p. 132, fig. 40.?Walcott,Bull. Mus. Comp. Zool., 8, 1881, pi. 5, fig. 7.?Peach, Proc. Royal Soc.Edinburgh, 9, 1888, pi. 20, figs. 2, 2a.?Miller, N. A. Geol. Pal., 1889, p. 548,fig. 1008.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 236, fig.?Clai-ke, Zittel-Eastman Textb. Pal., 1900, 1, pt. 2, p. 676, figs. 1420, 1421.?Grabau, Bull. New York State Mus., 45, 1901, p. 229, pi. 18; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 229, pi. 18.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 408, fig. 1709, Clarke and Ruedemann, Mem. New YorkState Mus., 14, 1912, p. 161, pis. 2-8, figs. 33, 34.Cayugan: Waterville, Litchfield, Seneca Falls, North Buffalo, etc. (Bertie), andSeneca Falls (Rondout), New York.Eurypterus remipes Bronn and Roemer. See Eurj'ptenis lacustris.Eurypterus robustus Grabau. See Eurypterus lacustris.Eurypterus? (Dolichopterus?) stellatus Clarke and Ruedemann.Eurypterus? (Dolichoptenis?) stellatus Clarke and Ruedemann, Mem. New YorkState Mus., 14, 1912, p. 211, pi. 83, figs. 1-4.Trenton (Schenectady): Schenectady, New York. 524 BULLETIlSr 92^ UNITED STATES NATIONAL MUSEUM.EuRYsoMA Claypole. See Eusarcus Grote and Pitt.EURYSTOMITES Schroder. Genotype: Nautilus kelloggi Whitfield.Eurystomites Schroder, Pal. Abhandl. von Dames u. Kayser, Neue Folge, 1, Heft4, Jena, 1891, p. 26.?Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 441.?Miller,N. A. Geol. Pal., 2d App., 1897, p. 773.?Clarke, Geol. Minnesota, 3, pt. 2,1897, p. 811.?Ruedemann, Bull. New York State Mus., 90, Pal., 14, 1906, pp.451, 456.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 68.Eurystomites accelerans Ruedemann.Eurystomites accelerans Ruedemann, Bull. New York State Mus., 90, 1906, p. 460,pi. 18, figs. 2, 3; fig. 23.Canadian (Beekmantown): Valcour, N^w York.Eurystomites amplectens Ruedemann.Eurystomites amplectens Ruedemann, Bull. New York State Mus., 90, 1906, p.461, pi. 18, figs. 4-7; fig. 24.Canadian (Beekmantown): Valcour, New York.Eurystomites apollo (Billings).Lituites Apollo Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 25 (adv.sheets 1862).Eurystomites apollo Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen ref.).Canadian (Romaine): Mingan Islands, Canada.Eurystomites champlainensis Schroder. See Tarphyceraa champlainense.Eurystomites gibbosus Hyatt.Eurystomites gibbosum Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 443.Canadian (Quebec): Port aux Choix, Schooner Island, Newfoundland.Eurystomites imperator (Billings).Lituites imperator Billings, Geol. Vermont, 2, for 1861, 1862, p. 957; Rep. Econ.Geol., etc., Vermont, 1862, p. 229; Pal. Foss., 1, Geol. Surv. Canada, 1865,p. 23 (adv. sheets 1861).Eurystomites imperator Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen. ref.).Canadian (Beekmantown): Phillipsbiug, Quebec.Eurystomites lielloggi (Whitfield).Nautilus kelloggi ^Vhitfield (part). Bull. Amer. Mus. Nat. Hist., 1, 1886, 8, p. 328,pi. 30, fig. 1 (not pi. 31, figs. 4, 5=E. rotundus Hyatt).Eurystomites kelloggi Schroder, Pal. Abh. herausg. von Dames und Kayser, 5,Heft 4, 1891, p. 27.?Hyatt, Amer. Phil. Soc. Proc, 32, 1894, p. 442, pi. 5,figs. 4, 5; figs. 21, 22.?Ruedemann, Bull. New York State Mus., 90, 1906,pp. 451, 456, figs. 21, 22; pi. 17, fig. 1; pi. 18, fig. 1.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 69, fig. 1278.Canadian: Fort Cassin, Vermont; Valcour, New York (Beekmantown); PickettsStation, Wisconsin (Shakopee).Plesiotype.?C&t. No. 25647, U.S.N.M.Eurystomites plicatus Whiteaves.Eurystomites plicatus Whiteaves, Canadian Rec Sci., 6, 1895, p. 396; Pal. Foss.,Geol. Surv. Canada, 3, pt. 3, 1897, p. 225, figs. 15, 16; pi. 22, fig. 2.?Schu-chert, Proc. U. S. Nat. Mus., 22, 1900, p. 173.Black River or Richmond: Little Black Island, Lake Winnipeg, and BaflBix Land,Canada. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 525Eurystomltes robertsonl (Hall).Lituites robertsoni Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 38.?^Whitfield,Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 64, pi. 10, figs. 4-6.Eurystomites robertsoni Miller, N. A. Geol. Pal., 2d App., 1897, p. 773 (gen. ref.).Black River (Platteville): Beloit, Wisconsin; Rockford, Illinois.Eurystomites rotundus Hyatt.Nautilus kelloggi Whitfield (part). Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 328,pi. 31, figs. 4, 5.?Seely, Vermont State Geol. Rep., 7, 1910, pi. 53, figs. 4, 5.Eurystomites rotundus Hyatt, Amer. Phil. Soc. Proc, 32, 1894, p. 443, pi. 5, figa.21-25.?Ruedemann, Bull. New York State Mus., 90 1906, p. 463.Canadian (Beekmantown): Fort Cassin, Vermont.Cotypes.?Cat. No. 25655, U.S.N.M.Eurystomites undatus Hyatt. See Plectoceras? undatum.Eurystomites undatus var. occidentalis Clarke. See Plectoceras undatumoccidentale.Eurystomites virginianus Hyatt.Eurystomites virginiana Hyatt, Amer. Phil. Soc. Proc, 32, 1894, p. 444.?Ruede-mann, Bull. New York State Mus., 90, 1906, p. 463.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 69.Canadian (Beekmantown) : Near Lexington, Virginia; Fort Cassin, Vermont.Eolotype.?Cat. No. 9611, U.S.N.M.EUSARCUS Grote and Pitt. Genotype: E. scorpionis Grote and Pitt.Eusarcus Grote and Pitt, Bull. Buffalo Soc. Nat. Sci., 3, 1875, pp. 1, 2.?Pohlman,Bull. Buffalo Soc. Nat. Sci., 5, 1886, p. 29.?Claypole, Amer. Geol., 13, 1894,p. 78, footnote.?Clarke, Zittel-Eastman Textb. Pal., 1, 1900, p. 676; ibid.,2d ed., 1913, p. 783.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 230;Bull. New York State Mus., 45, p. 230.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 409.?Clarke and Ruedemann, Mem. New York State Mus.14, 1912, p. 226.Eurysoma Claypole, Amer. Geol., 6, p. 258. (Genotype, E. newlini Claypole.)Carcinosoma (Eurysoma preoccupied) Claypole, Amer. Geol., 13, 1894, p. 78. ? Miller, N. A. Geol. Pal., 1st App. 1892, p. 706.Eusarcus(?) cicerops (Clarke).EurypteruB? cicerops Clarke, Bull. New York State Mus., 107, 1907, p. 307, pi.5, fig. 10; pi. 5, fig. 7.Eu8arcu8(?) cicerops Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 253, pi. 80, figs. 2-10.Medinan (Shawangunk): Otisville, New York.Eusarcus grandis Grote and Pitt. See Eusarcus scorpionis.Eusarcus lingulatus Clarke and Ruedemann.Eusarcus lingulatus Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 413, figs. 96, 97.Chazyan (Normanskill) : Catskill, New York.Eusarcus longiceps Clarke and Ruedemann.Eusai'cus longiceps Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 257, pi. 84, figs. 1-6.Trenton (Schenectady): Schenectady, New York. 526 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Eusarcus newlinl (Claypole).Eurysoma newlini Claypole, Amer. Geol., 6, 1890, pp. 258, 260, fig. 3.Carcinosoma newlini Claypole, Amer. Geol., 6, 1890, p. 400; ibid., 13, 1894, p. 78.Eusarcus newlini Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 245, pi. 36, fig. 11; pis. 37-39, figs. 59, 60.Carcinosoma ingens Claypole, Amer. Geol., 13, 1894, p. 77, pi. 4.Cayugan(Kokomo): Kokomo, Indiana.Plesiotype?Cat. No. 42559, U.S.N.M.Eusarcus scorpionis Grote and Pitt.Eusarcus scorpionis Grote and Pitt, Bull. Buffalo Soc. Nat. Sci., 3, 1875, p. 1. ? Pohlman, ibid., 4, 1881, p. 21.?Grabau, Bull. New York State Mus., 45,1901, p. 231; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 231.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 410.?Clarke and Ruedemann, Mem. New YorkState Mus., 14, 1912, p. 233, pis. 27-34; pi. 35, figs. 2-5; pi. 3G, fig. 1; figs. 54-58.Eusarcus grandis Grote and Pitt, Bull. Buffalo Soc. Nat. Sci., 3, 1875, p. 17.Pohlman, ibid., 6, 1886, p. 31.?Grabau, Bull. New York State Mus., 45,1901, p. 230; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 230.~Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 410.Cayugan (Bertie) : Williamsville and Buffalo, New York.Eusarcus scorpionis Pohlman. See Dolichoptenia siluriceps.Eusarcus triangulatus Clarke and Ruedemann.Eusarcus triangulatus Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 258, pi. 84, figs. 7-9.Trenton (Schenectady): Schenectady, Duanesburg, and Rotterdam Junction,New York.Eusarcus vaningeni Clarke and Ruedemann.Eusarcus vaningeni Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 420, figs. 108-115-Cuyagan (Pittsford): Oriskany Creek, near Clinton, New York.EUSPIROCRINUS Angelin. Genotype: E. spiralis Angelin.Euspirocrinus Angelin, Icon. Crin. Suec, 24, 1878.?Wachsmuth and Springer,Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 366 (Rev. Pal., pt. 1, p. 143);ibid., 1886, pp. 112, 143 (Rev. Pal., pt. 3, sec. 2, pp. 188, 219).?Bather,Treatise on Zool. (Lankester), pt. 3, 1900, p. 173.?Wachsmuth, Zittel-East-man Textb. Pal., 1, 1900, p. 157.?Springer, ibid., 2d ed., 1913, p. 218.?Zittel, Grundzuge Pal., 1, 1910, pp. 135, 154.Euspirocrinus obconicus W. R. Billings.Euspirocrinus obconicus W. R. Billings, Trans. Ottawa Field Nat. Club, 2, 1885,p. 248, pi. fig.? Miller, N. A. Geol. Pal., 1889, p. 246, figs. 306, 307.Trenton: Ottawa, Ontario; Hull, Quebec.EuTHTRis Quenstedt. See Athyris McCoy.FABERIA Miller. Genotype: F. anomala Miller.Faberia Miller, N. A. Geol. Pal., 1889, p. 549.Faberia anomala Miller.Faberia anomala Miller, N. A. Geol. Pal., 1889, p. 549, fig. 1009.Maysville or Richmond: Butler County, Ohio.FAVASTRiEA STRIATA D'Orbigny. See Strombodes striatus.Favistella Dana. See Columnaria Goldfuss. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 527Favistella favosidea Hall. See Favosites favosidea.Favistella? frankllui Salter.Favistella Frankliui Salter, Sutherland's Jour. Voyage in Baffins Bay, etc., 2,1852, p. 229, pi. G, figs. 3, 3a.?Haughton, Jour. Geol. Soc. Dublin, 1, 1859, p.247, pi. 11, fig. 1.?Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 586.Silurian: Cape Riley, Dobbin Bay, and Cape Hilgard, Arctic America.Favistella? reticulata Salter.Faidstella reticulata Salter, Sutherland's Jour. Voyage in Baffins Bay, etc., 2,App., 1852, p. 229, pi. 6, figs. 2, 2a.?Etheridge, Quart. Jour. Geol. Soc.London, 34, 1878, p. 586.Silurian: Cape Riley, Franklin Pierce Bay, and Cape Hilgard, Arctic America.FAVOSITELLA Etheridge and Foord. Genotype : Favosites interpuncta Quenstedt.Bythotrypa Uhrich, Geol. Minnesota, 3, 1893, p. 324; Zittel's Textb. Pal. (Engl,ed.), 1896, p. 268.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 24.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 123. (Geno-type: Fistulipora? laxata Ulrich.)Favositella Etheridge and Foord, Ann. Mag. Nat. Hist., 5th ser., 13, 1884, p. 472.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 100-102; Zittel-Eastman Textb.Pal., 1913, p. 328.Favositella epidermata (Ulrich).Crepipora epidermata Ulrich, Geol. Suxv. Illinois, 8, 1890, p. 471, pi. 40, figs. 1-le.Bythotrypa epidermata Nickles and Bassler, Bull. U. S. Geol. Sitrv., 173, 1900,p. 186 (gen. ref.).Richmond (Fernvale): Wilmington and Savannah, Illinois; Tennessee.Cotypes?Cat. No. 43229, U.S.N.M.Favositella laxata (Ulrich).FLstulipora? laxata Ubich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 37, pi. 8,figs. 2, 2a.BythotrjTia laxata Ukich, Geol. Minnesota, 3, 1893, p. 325, pi. 28, figs. 21-25;Zittel's Textb. Pal. (Engl, ed.), 1896, fig. 440 (p. 268).?Whiteaves, Pal.Foss., 3, pt. 3, 1897, p. 163.?Grabau and Shimer, N. A. Index Fossils, 1, 1907,p. 124, fig. 182c.Favositella laxata Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 101 (gen. ref.);Zittel-Eastman Textb. Pal., 1913, p. 329, fig. 467.Black River and Trenton: St. Andrews, Manitoba; Minneapolis, St. Paul,Kenyon, Berne, and Cannon Falls, Minnesota; Rockton, Illinois; Decorah,Iowa.P'ragment of holotype and pksiotypes.?Cat. Nos. 43220, 43241, U.S.N.M.FAVOSITES Lamarck. Genotype: F. alveolatus Lamarck.Favosites Lamarck, Cours. de Zool. duMus. Hist. Nat., Hist. An. Sans Vert., 1812,p. 204.?Eichwald, Zool. Specialis, pt. 1, Vilnae, 1829, p. 193.?Koninck,Desc. Animaux Fossiles, Leige, p. 9.?McCoy, Syn. Char. Carb. Foss. Ireland,1844, p. 191.?Dana, Wilkes U. S. Expl. Exped., 7, Zoophytes, 1838, p. 430.?Edwards and Haime, Compt. Rend, de I'Acad. Sci., 29, 1849, p. 260; Mon.d. Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 6), 1851, pp. 152,230.?Hall, Pal. New York, 2, 1852, p. 124.?McCoy, British Pal. Rocks,Fossils, 1854, p. 19.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 440.?Billings,Canadian Jour., n. s., 4, 1859, p. 99.?Milne-Edwards, Hist. Nat. d. Corall.,3, 1860, p. 246.?Verrill, Amer. Jour. Sci., 3d ser., 3, 1872, p. 191; Ann.r. Nat. Hist., 4th ser., 9, 1872, p. 360.?Duncan, Rep. 41st Meeting 528 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.FAYOSITES?Continued.British Assoc. Adv. Sci., 1872, p. 132.?Koninck, Animaux Fosa. Terr. Carb.Belgique, 1872 (Mem. I'Acad. Royale Sci. Belgique), 39, p. 136.?Nicholson,Canadian Jour., n. s., 14, 1873, p. 38.?Salter, Cat. Camb. Sil. Foss., 1873,p. 104.?Nicholson, Geol. Mag., 10, 1873, p. 567; Rep. Pal. Prov. Ontario,pt. 1, 1874, p. 44.?Moseley, Proc. Royal Soc. London, 25, 1875, p. 66.?Nicholson, Geol. Surv. Ohio, Pal., 2, 1875, p. 183.?Rominger, Geol. Surv.Michigan, 3, pt. 2, 1876, p. 19.?Zittel, Handb. Pal., 1, 1879, p. 236.?Nichol-son, Tab. Corals Pal. Period, 1879, p. 37.?Thomson, Proc. Phil. Soc. Glas-gow, 13, 1881, pp. 201, 202, fig. lA.; Proc. Phil. Soc. Glasgow, 14, 1883, p.349; ibid., 20, 1889, p. 121, fig.?Roemer, Leth. Geog., pt. 1, Leth. Pal.,1883, p. 419.?Freeh, Zeits. d. Deutschen geol. Gesell., 37, 1885, p. 100.?Hall and Simpson, Pal. New York, 6, 1887, p. 13.?Nicholson, Geol. Mag.,dec. 3, 5, 1888, p. 107.?Miller, N. A. Geol. Pal., 1889, p. 188.?Beecher,Trans. Connecticut Acad. Aits Sci., 8, 1891, pp. 209, 210, 215.?Girty, Amer.Geol., 15, 1895, pp. 131-146.?Sardeson, Neues Jahrb. f. Mint., Geol., Pal.,Beilage-Bd., 10, 1896, pp. 251, 284.?Girty, Amer. Geol., 18, 1896, p. 41.?Say (reprint), Bull. Amer. Pal., 1, 1896, p. 278.?Lambe, Cont. Canadian Pal.,Geol. Surv. Canada, 4, pt. 1, 1899, p. 2.?Lindstrom, Kongl. Sven. Vet.Akad. Handl., 32, 1899, p. 49.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899,p. 130; Zittel-Eastman Textb. Pal., 1, 1900, p. 99; Bull. New York StateMus., 9, 1901, p. 140; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 140.?Pocta,Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 213.?Beecher, Amer. Jour.Sci., 16, 1903, p. 9.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 84;Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 113.Calamopora Goldfuss, Petrefacta, 1826, pp. 77, 245; 2d ed., pt. 1, 1862, p. 72.Emmonsia Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851 (Arch,du Mus. d'Hist. Nat., 5), pp. 152-246.?Pictet, Traite de Pal., 2d ed., 4, 1857,p. 441.?Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 257.?Rominger,Jour. Sci. Arts, 2d ser., 34, 1862, p. 391.?Nicholson, Canadian Jour., n. s.,14, 1873, p. 38.?Zittel, Handb. Pal., 1, 1879, p. 237.?Nicholson, Tab. CoralsPal. Period, 1879, p. 41.?Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883,p. 422.?Miller, N. A. Geol. Pal., 1889, p. 187.Asti'ocerium Hall, Amer. Jour. Sci. Arts, 2d ser., 11, 1851, pp. 399-400; Pal. NewYork, 2, 1852, p. 120.?Rominger, Amer. Jour. Sci. Arts, 2d ser., 34, 1862,p. 391.?Nicholson, Canadian Jour., n. s., 14, 1873, p. 39; Tab. Corals Pal.Period, 1879, p. 40.Favosftes alveolaris Lonsdale. See Paleofavosites asper.Favosites aspera D'Orbigny. See Paleofavosites aspera.Favosites basalticus nanus Grabau.Favosites basaltica Goldfuss var. nana Graoau, Michigan Geol. Surv., Geol. Ser., 1,1909, p. 110, pi. 10, figs. 5, 6.Upper Monroan (Anderdon): Salt shaft, Detroit, Michigan.Favosites? capax Billings. See Paleofavosites asper.Favosites concavus Grabau.Favosites concava Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 114, pi. 15,figs. 2, 3.Upper Monroan (Anderdon): Amherstburg, Ontario.Favosites constrlctus (Hall).Astrocerium constrictum Hall, Pal. New York, 2, 1852, p. 123, pi. 34A, figs.2a-c, 3a-e. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 529Favosites constrictus?Continued.Favosites constrictus Grabau, Bidl. Buffalo Soc. Nat. Sci., 7, 1901, p. 142, fig. 37;Bull. New York State Mus., 45, 1901, p. 142, fig. 37.Clinton (Rochester): Lockport, etc.. New York; Ontario.Favosites corrugatus Weller.Favosites corrugatus Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 220, pi. 17,figs. 1, 2.Helderbergian (Decker Ferry): FlatbrookviUe, New Jersey.Favosites cristatus Edwards and Haime.Favosites cristatus Edwards and Haime, Pal. Foss. Terr. Paleozoic, 1851, p. 242. ? Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 9,figs. 1-5.Silurian: Gotland, England, etc.; Indiana, Kentucky, and Tennessee (Osgoodand Louisville-Brownsport).Favosites cristatus major Davis.Favosites cristatus var. major Davis, Kentucky Fossil Corals, Geol. Surv. Ken-tucky, pt. 2, 1885, pi. 24, fig. 3.Niagaran: Louisville, Kentucky (Loiiisville); Perry and Decatur Counties, Ten-nessee (Brownsport).Favosites declinatus Foerste.Favosites declinata Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 300, pi. 2,figs. 4a, b, and pi. 4, fig. 4.Clinton (Waco): Near Irvine, Panola, Waco, etc., Kentucky.Favosites discoideus (Roemer).Calamopora forbesi var. discoidea Roemer, Sil. Fauna West. Tennessee, Breslau,1860, p. 19, pi. 2, fig. 10a, b; Leth. geog., pt. 1, Leth. Pal., 1883, p. 454.Favosites forbesi var. discoidea Miller, N. A. Geol. Pal., 1889, p. 188 (gen. ref.).Favosites discoidea Foerste, Jour. Geol., 11, 1903, p. 713.Niagaran (Brownsport): Perry, W'ayne, and Decatur Counties, Tennessee.Favosites discus Davis.Favosites discus Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2,1885, pi. 9, figs. 8, 9.Niagaran: Louisville, Kentucky (Louisville); West Tennessee (Brownsport).Favosites excretus Hall. See Favosites spinigerus.Favosites favosideus (Hall).Favistella favosidea Hall, Pal. New York, 2, 1852, p. 41, pi. 17, figs. 2a-f.Favosites favosideus Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 833.Clinton: Rochester, Sodus, etc.. New York.Upper Medinan (Brassfield): Dayton, Ohio.Favosites favosus (Goldfuss).Calamopora favosa Goldfuss, Petrefacta, 1826, p. 77, pi. 26, fig. 2a-c; ibid., 2d ed.,pt. 1, 1862, p. 73.?Troost, 5th Geol. Rep. Tennessee, 1840, p. 70.?Roemer,Sil. Fauna West. Tennessee, Breslau, 1860, p. 18, pi. 2, fig. 8.?Rominger,Amer. Jour. Sci. Arts, 2d ser., 34, 1862, p. 392.Favosites favosa Edwards and Haime Mon. d. Polyp. Foss. d. Terr. Pal. 1851(Arch, du Mus. d'Hist. Nat., 5), p. 233.?Hall, Pal. New York, 2, 1852, p. 126,pi. 34a (bis), fig. 5ar-g.?Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 248.?84243??Bull. 92?15 34 530 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.FaFOSites favosus?Continued.Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 32 (loc. ref.). ? Nicholson and Hinde, Canadian Jour., n. s., 14, 1874, p. 147; Geol. Snrv.Ohio, Pal. 2, 1875, p. 229; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 52.?Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 21, pi. 4, figs. 1-4; pi. 5,fig. 2.?White, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 383,pi. 52, figs. 1, 2.?Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883,p. 253, pi. 3, figs. 1-4.?Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky,pt. 2, 1885, pi. 8, figs. 1, 2.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 239, figs.?Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 333.?Keyes, Missouri Geol. Surv., 4, 1894, p. 120, pi. 14, fig. 2.?Hayes and Ulrich,U. S. Geol. Surv., Folio 95, illus. sheet, 1903, fig. 5.?Grabau and Shimer,N. A. Index Fossils, 1, 1906, p. 84, fig. 137.Favosites gothlandicus Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 298, pi.2, figs, la, b.Silurian (Brassfield-Guelph): Drununonds Island, Lake Huron; Anticosti;Ontario; Michigan; Missouri; Iowa; Ohio; Kentucky; etc.Plesiotypes.?Csit. No. 52654, U.S.N.M. (Davis).Favosites favosus integritabulatus Swartz.Favosites favosus var. integritabulatus Swartz, Maryland Geol. Surv., Low. Dev.,1913, p. 214, pi. 24, figs. 1, 2.Helderbergian (Keyser): Warrior Mountain, east of Flintstone, Maryland.Favosites forbesi Edwards and Haime.Favosites forbesi Edwards and Haime, British Foss. Corals, 1854, p. 258.?Lind-strom, Ofvers K. Vet. Akad. Forhandl., 30, 4, 1873, p. 22.?Nicholson, Geol.Mag., 10, 1873, p. 569; Canadian Jour., n. s., 14, 1873, p. 40, 45; Rep. Pal.Prov. Ontario, pt. 1, 1874, p. 48, pi. 7, fig. 8; pi. 8, fig. 4; Trans. Royal Soc.Edinburgh, 27, 1876, p. 247; Tab. Corals Pal. Period, p. 56, pi. 1, fig. 7; pi. 2,figs. 1-3; pi. 3, figs. 1, 2.?Roemer, Leth. Geog., pt. 1, Leth. Pal., 1883, p.421, pi. 9, fig. 5a-c.?Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky,pt. 2, 1885, pi. 8, figs. 5, 6.?Weissermel, Zeits. d. d. geol. Gesell., 46, 1894,p. 648, pi. 52, fig. 1.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2,1895, p. 50.?Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 339, fig.16, pi. 87, 100.?Clarke and Ruedemann, Mem. New York State Mus., 5,1903, p. 31.Silurian: Europe; Rochester, etc.. New York; Ontario; Kentucky; Tennessee(Niagaran); Anticosti.Plesiotype?Cat. No. 52658, U.S.N.M. (Davis).Favosites forbesi var. discoidea Roemer. See Favosites discoideus.Favosites forbesi var. eifelensis Holtedahl. See Favosites pyriformia.Favosites forbesi occidentalis Hall.Favosites Forbesi var. occidentalis Hall, 28th Rep. New York State Mus. Nat.Hist., doc. ed., 1875, pi. 4, figs. 6-15; ibid., mus. ed., 1879, p. 109, pi. 4, figs.6-15; 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 229, pi. 1, figs.11-14; pi. 3, figs. 6-15.?Miller, N. A. Geol. Pal., 1889, p. 188, fig. 175.?Girty, Amer. Geol., 15, 1895, pp. 134-136, pi. 7, figs. 1-26; pi. 8, figs. 20-25,figs. 1-5.?Weissermel, Zeits. Geol. Gesell., 49, 1897, p. 377, fig. 2.Favosites Forbesi var. Waldronensis Nicholson, Tab. Corals Pal. Period, 1879, p.60, pi. 2, figs. 2-2b.Niagaran (Waldron): Waldron, Indiana; Newsom, etc., Tennessee. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 531Favosites Forbesi var . waldronensis Nicholson. See Favoeitea forbesi occidentalis,Favosites gaspensis Lambe.Favosites Gaspensis Lambe, Cont. Canadian Pal., Geol. Surv. Canada, 4, pt. 1,1899, p. 8.Silurian(?): L'Anse au Gascon, Bale des Chaleurs, QuebecFavosites goldfussi (Castelnau). Not recognized.Calamopora goldfussi Castelnau, Syst. Sil., 1843, p. 47.?Favosite3 goldfussi Miller, N. A. Geol. Pal., 1889, p. 188, fig. 176.Silurian: Manitoulin Islands, Lake Huron, and Sturgeon Bay, Wisconsin.Favosites gothlandica Foerste. See Favosites favosus.Favosites gothlaudicus (Fought).Corallium gothlandicum Fought, Amoen. Acad., 1, 1749, p. 106, pi. 4, fig. 27.Calamopora gothlandica Goldfuss, Petrefacta, 1826, p. 78, pi. 26, figs. 3a-e; ibid.,2d ed., 1862, p. 73.?Troost, 5th Geol. Rep. Tennessee, 1840, p. 69.?Castel-nau, Essai Syst. Sil. I'Amerique Septent., 1843, pi. 16, fig. 3.?Roemer, Sil.Fauna West Tennessee, Breslau, 1860, p. 18, pi. 2, figs. 9, 9a, 9b.Favosites gothlandica Lam., Syst., 2, 1816, p. 206.?Edwards and Haime, Mon.d.Polyp. Foss. d. Terr. Pal. (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 232.?Salter, Sutherland's Jour. Voyage in Baffin's Bay, etc., 2, App., 1852, p. 228. ? Edwards and Haime, Mon. British Foss. Corals, Pal. Soc, 1854, p. 256, pi. 60,figs. 1, la.?Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 305, fig. 302Proc. Portland Soc. Nat. Hist., 1, 1863, p. 106.?Winchell and Marcy, MemBoston Soc. Nat. Hist., 1, 1865, p. 83.?Billings, Cat. Sil. Foss. Anticosti, GeolSurv. Canada, 1866, p. 32.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 21895, p. 50.?Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1S99, p. 3pi. 1, fig. 1.?Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, p30.?"WTiiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 244.?LambeCruise of the "Neptune," App. 4, 1906, p. 325.Silurian: Europe and (?)America.Observation.?^Typical F. gothlandicus is probably not represented in Ameri-can strata. The above references to American Silurian forms have not beenaccurately determined. F. favosus and F. niagarensis are the principal Americanspecies usually identified as F. gothlandicus.F'avosites halliana Nicholson. See Cladopora multipora.Favosites helderbergiae praecedens Schuchert.Favosites niagarensis? Hall, Pal. New York, 2, 1852, p. 324, pi. 73, figs, la-le.Favosites helderbergiae praecedens Schuchert, Am. Geol., 31, 1903, p. 164.Grabau, Bull. New York State Mus., 92, 1906, p. 108, fig. 7.?Swartz, Mary-land Geol. Surv., Low. Dev., 1913, p. 209, pi. 22, figs. 2-7.Helderbergian: Schoharie, Litchfield, etc.. New York (Coeymans); Cash Valley,Pinto, etc., Maryland; West Virginia; Pennsylvania (Keyser).Cotypes.?C&t. No. 10533, U.S.N.M.Favosites hisingeri Edwards and Haime.Favosites hisingeri Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal. (Arch,du Mus. d'Hist. Nat., 5), 1851, p. 240, pi. 17, figs. 2-2b; Mon. British Foss.Corals, Pal. Soc, 1854, p. 259, pi. 61, figs, la, lb.?Whiteaves, Pal. Foss., Geol.Surv. Canada, 3, pt. 2, 1895, p. 51.?Lambe, Cont. Canadian Pal., Geol. Surv,Canada, 4, pt. 1, 1899, p. 6.?Clarke and Ruedemann, Mem. New York StateMus., 5, 1903, p. 29. 532 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Favosltes hisingeri?Continued.Astrocerium parasiticum Hall, Pal. New York, 2, 1852, p. 122, pi. 34, fig. 2a-i.Favosites parasiticum Grabau, Bull. New York State Mus., 45, 1901, p. 141, fig. 35;Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 141, fig. 35.Astrocerium venustum Hall, Pal. New York, 2, 1852, p. 120, fig.; p. 121, pi. 34,figs, la-j; Rep. Geol. Surv. Wisconsin, 1862, p. 66, fig. 1.?Whitfield, Geol.Wisconsin, 4, 1882, p. 270, pi. 13, figs. 8-10.?Chamberlin, Geol. Wisconsin, 1,1883, p. 188, fig.Calamopora venusta Rominger, Amer. Jour. Sci. Arts, 2d ser., 34, 1862, p. 394.Favosites venustus Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p.83.?Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 390.?Nichol-son and Hinde, Canadian Jour., n. s., 14, 1874, p. 147.?Nicholson, Geol.Surv. Ohio, Pal., 2, 1875, p. 226; Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 52.?Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 23, pi. 5, fig. 3.?Hall, 12thAnn. Rep. Indiana Dep. Geol. Nat. Hist., 1883, p. 253, pi. 2, figs. 7, 8.?Davis, Kentucky Fossil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 9, figs.7, 10.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 243, figs.?Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, p. 335.?Grabau, Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 140, fig. 34; Bull. New York State Mus., 45, 1901, p.140, fig. 34.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 84, fig.136a, b.Silurian: England, etc. Various localities in the Cataract and Niagaran of theUnited States and Canada.Favosites hisingeri aplata Foerste.Favosites hisingeri-aplata Foerste, Bull. Kentucky Geol. Siu-v., 7, 1906, p. 299,pi. 2, fig. 2; pi. 4, fig. 5.Clinton (Waco): Near Estill Springs, north of Irvine, etc., Kentucky.Favosites hispidus Rominger.Favosites hispidus Rominger, Geol. Surv. Mchigan, 3, pt. 2, 1876, p. 23, pi. 5,fig. 4.Niagaran: Drummond's Island, Lake Huron; PoiUt Detour, Michigan.Observation.?Probably the same as F. hisingeri.Favosites louisvillensis Davis.Favosites louisvillensis Davis, Kentucky Foss. Corals, Geol. Surv. Kentucky, pt.2, 1885, pi. 9, fig. 6.Niagaran (Louisville): Near Louisville, Kentucky.Favosites louisvillensis Greene.Favosites louisvillensis Greene, Cont. Indiana Pal., 1, pt. 19, 1904, p. 186, pi. 56,fig. 2.Niagaran (Louisville) : Near Louisville, Kentucky.Observation.?On account of the synonymy that undoubtedly exists among theLouisville corals, it is useless to propose a new name for this preoccupied term.Moreover it is possible that both names refer to the same species.Favosites lycoperdon Owen. See Chsetetes lycoperdon.Favosites lycopodites Vanuxem. Not recognizable.Favosites lycopodites Vanuxem, Geol. Rep. 3d District New York, 1842, p. 46,fig. 3.?Emmons, Nat. Hist. New York, Geol., 2, 1842, p. 389, fig. 3; p. 395.?Mather, Nat. Hist. New York, Geol., 1, 1843, p. 397, fig. 3.?Lesley, Geol.Surv. Pennsylvania, Rep. P 4, 1889, p. 242, fig.Trenton: New York, etc. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 533Favosites maximus (Troost). Not recognized.Calamopora maximus Troost, 5th Rep. Geol. Tennessee, 1840, p. 73.Favosites maxima Owen, Geol. Expl. Iowa, Wisconsin, Illinois, 2d ed., 1844,p. 76, fig. 7, pi. 13.?Yandell and Shumard, Contr. Geol. Kentucky, 1847, p. 7.Favosites cf. maximus Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 115,pi. 15, figs. 4, 5."Mountain limestone": Near Nashville, Tennessee.Observation.?Troost' s description probably refers to a large-celled variety ofColumnaria alveolata, abundant in the Richmond group north of Nash-\dlle. Owen's figures are of a true Favosites, probably F. favosus. Grabau'sreference is also to a true Favosites.Favosites multlpora Nicholson. See Cladopora multipora.Favosites niagarensis Hall.Favosites niagarensis Hall, Pal. New York, 2, 1852, p. 125, pi. 34a (bis), fig4a-i.?Billings, Canadian Nat. Geol., 1, 1856, p. 60, pi. fig. 1; ibid., 4, 1859, p103.?Nicholson, Canadian Jour., n. s., 14, 1873, p. 40.?Chamberlin, GeolWisconsin, 1, 1883, p. 190, fig.?Davis, Kentucky FossU Corals, Geol. SurvKentucky, pt. 2, 1895, pi. 8, figs. 3, 4.?Foerste, Proc. Boston Soc. NatHist., 24, 1889, p. 334; Geol. Surv. Ohio, Pal., 7, 1893, p. 601.?Lambe, ContPal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 7.?Grabau, Bull. New York StateMus., 45, 1901, pp. 142, 143, fig. 38; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p142, fig. 38.?Clarke and Ruedemann, Mem. New York State Mus., 5, 1903p. 28; Bull. New York State Mus., 65, 1903, p. 48.?Shimer, Bull. New YorkState Mus., 80, 1905, p. 236.?Grabau and Shimer, N. A. Index Fossils, 1, 1906p. 85.Niagaran: Niagara Falls, Lockport, etc., New York (Rochester); Ontario; Michi-gan; Iowa; Kentucky; Tennessee; etc.Favosites niagarensis? Hall (part). See Favosites helderbergia? praecedens.Favosites niagarensis Rominger. See Paleofavosites asper.Favosites niagarensis var. spinigera Hall. See Favosites spinigerus.Favosites obliquus Rominger.Favosites obliquus Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 24, pi. 28, _ fig. 2. _Niagaran: Point Detour, Michigan; Drummonds Island, Lake Huron; Mason-ville, Iowa.Favosites obpyriformis Foerste.Favosites obpyriformis Foerste, Jour. Geol., 11, 1903, p. 713; Bull. Sci. Lab.Denison Univ., 14, 1909, p. 100, pi. 4, fig. 74.Niagaran (Bro^vnsport) : Near Vice, Decatur County, Tennessee.Favosites occidens Whitfield.Favosites occidens Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878,p. 78; Geol. Wisconsin, 4, 1882, p. 313, pi. 23, figs. 6, 7.Niagaran (Guelph): Ozaukee, etc., Wisconsin.Favosites parasiticus Hall. See Favosites hisingeri.Favosites prolipicus Billings. See Paleofavosites asper.Favosites pyriformis (Hall).Asterocerium pyriforme Hall, Pal. New York, 2, 1852, p. 123, pi. 34A, fig. la-e. 534 BULLETIN- 92, UNITED STATES NATION"AL MUSEUM.Favosites pyriformis?Continued.Favosites pyriformis Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 25. ? Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 141, fig. 36; Bull. New YorkState Mus., 45, 1901, p. 141, fig. 36.?Weller, Geol. Surv. New Jersey, 3, 1903,p. 220, pi. 17, figs. 3-5.?Swartz, Maryland Geol. Surv., Low. Dev., 1913, p.211, pi. 23, figs. 1-4.Favosites forbesi eifelensis Holtedahl, 2d Arct. Exp. Fram, 1898-1902, No. 32,1914, p. 11, pi. 4, figs. 5, 6.Clinton (Rochester) and Niagaran (Lockport): Lockport, etc.. New York.Helderbergian: Two miles south of Tristates, New York (Decker Ferry); Cook-erly, etc., Maryland (Keyser); southwestern Ellesmereland, Arctic America.Observation.?The Helderbergian specimens described by Weller, Swartz, andHoltedahl probably belong to a distinct species or variety aS noted by the lastauthor.Favosites pyriformis koliomoensis Foerste.Favosites pjTiforme-kokomoensis Foerste, Cincinnati Soc. Nat. Hist., Jour., 21,1909, p. 9, pi. 1, figs. 17a-d, pi. 2, fig. 15.Cayugan (Kokomo): Kokomo, Indiana.Favosites rectangularis Grabau.Favosites rectangularis Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. Ill,pi. 14, figs. 3, 4.Upper Monroan (Anderdon): Salt shaft, Detroit, Michigan; Amherstburg, On-tario.Favosites seriata Nicholson. See Cladopora seriata.Favosites spinigerus Hall.Favosites Niagarensis? var. spinigera Hall, 28th Rep. New York State Mus. Nat.Hist., doc. ed., 1875, pi. 4, fig. 1-5.Favosites spinigerus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed.,1879, p. 108, pi. 4. figs. 1-5; 11th Rep. Indiana Dep. Geol. Nat. Hist., 1882,p. 228, pi. 3, figs. 1-5; pi. 8, figs. 1, 2.?Girty, Amer. Geol., 15, 1895, p. 136,pi. 8, figs. 6-15.Favosites excretus Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed.,1875, pi. 9, figs. 1, 2.Favosites spongilla Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 25.^Davis,Kentucky Fpssil Corals, Geol. Surv. Kentucky, pt. 2, 1885, pi. 8, figs. 7-9.Niagaran (Waldron-Brownsport): Waldron, St. Paul, etc., Indiana; Newsom,etc., Tennessee; Louisville, Kentucky^Pksiotype.?Q&t. No. 52645, U.S.N.M.Favosites spongilla Rominger. See Favosites spinigera.Favosites striatus Say. Not recognized.Favosites striatus Say, Amer. Joxu-. Sci., 1, 1818, p. 384.Silurian: Falls of the Ohio, etc.Favosites subelongus Savage.Favosites subelongus Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 64, pi. 3,figs. 9, 10.Upper Medinan (Edgewood): Near Edgewood, Louisiana, and south of Clarks-ville. Pike County, Missouri.Favosites troosti Edwards and Haime,Favosites troosti Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851(Arch.du Mus. d'Hist. Nat., 5), p. 238, pi. 18, figs. 1, la.?Billings, Canadian Jour.,n. 8., 4, 1859, p. 103.?Nicholson, Canadian Jour., n. s., 14, 1873, p. 40. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 535Favosites troosti?Continued.Silurian: Iowa.Observation.?Although recorded from the Silurian of Iowa, this species isundoubtedly a Devonian form like F. hemisphericus.Favosites tuberoides Grabau.Favosites tuberoides Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 112,pi. 14, fig. 2.Upper Monroan (Amherstbxirg) : Detroit River, opposite Amherstburg, Ontario.Favosites venustus Hall. See Favosites hisingeri.FENESTELLA Lonsdale. (Not Fenestella Bolten 1798.) Genotype: Gorgoniaantiqua Goldfuss. Accepted genotype : Fenestella plebeia McCoy.Fenestella Lonsdale, Murchison's Sil. Syst., 1839, p. 677.?Phillips, Pal. Foss.,1841, p. 22.?McCoy, Synopsis Carb. Foss. Ireland, 1844, p. 200.?Lonsdale,Russia and the Ural Mountains, 1, Appendix A, 1845, p. 629.?King, Mon.Perm. Foss., 1850, p. 34.?McCoy, British Pal. Foss., 1854, p. 49.?Hall,Amer. Jour. Sci. Arts, 2d ser., 23, 1857, pp. 203-204.?Pictet, Traite dePal., 2d ed., 4, 1857, p. 165.?Eichwald, Leth. Rossica, 1, 1860, p. 356.?Nicholson, Pal. Province Ontario, 1874, p. 104.?Zittel, Handb. Pal., 1,Munich, 1880, p. 600.?Vine, Geol. Mag., dec. 2, 7, 1880,p.511.?Shrubsole,Quart. Jour. Geol. Soc. London, 37, 1881, p. 179.?Ulrich, Jour. CincinnatiSoc. Nat. Hist., 5, 1882, p. 150.?Claypole, Quart. Jour. Geol. Soc. London, 39,1883, p. 31.?Vine, Proc. Yorkshire Geol. Polyt. Soc, n. s., 8, 1884, p. 164;Rep. 53d Meeting British Assoc. Adv. Sci., 1884, p. 190 (restricted).?Hall,Rep. State Geol. New York for 1884, 1885, p. 35.?Waagen and Pichl, Pal.Indica, ser. 13, 1885, pp. 773, 776.?Ubich, Contr. Amer. Pal., 1, 1886, p. 4.?Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 83.?Hall and Simpson, Pal.New York, 6, 1887, p. 22.?Miller, N. A. Geol. Pal., 1889, p. 302.?Girty,Mon. U. S. Geol. Surv., 32, pt. 2, 1889, pp. 5, 18.?Ulrich, Geol. Surv. Illi-nois, 8, 1890, pp. 395, 534.?Pocta, Syst. Sil. Boheme, 8, pt. 1, 1890, p. 40.?Whidborne, Devon. Faiina England (Pal. Soc. Publ.), 2, pt. 4, 1895, p.165.?Simpson, 13th Ann. Rep. State Geol. New York for 1893, 1895, pp. 687,724; 47th Ann. Rep. New York State Mus., pp. 881, 918.?Uhich, Zittel'sTextb. Pal. CEngl. ed.), 1896, p. 281.?Simpson, 14th Ann. Rep. State Geol.New York for 1894, 1897, p. 500.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6,1899, p. 159.?Nicklesand Bassler, Bull. U. S. Geol. Siirv., 173, 1900, pp.37, 244.?Grabau, Bull. New York State Mus., 45, 1901, p. 170; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 170.?Condra, Nebraska Geol. Siurv., 2, pt. 1,1903, p. 49.?Cumings, Amer. Jour. Sci., 17, 1904, pp. 49, 58; ibid., 20, 1905,p. 169, pis. 5-7.?Hennig, Archiv. fur Zool., K. Sven. Vet.-Akad. Stockholm,3, 1906, p. 1.?Cumings, 30th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1906,p. 1276.?Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 50.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 142.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 746.?Bassler, Bull. U. S. Nat. Mus., 77,1911, p. 175; Zittel-Ea.stman Textb. Pal., 1913, p. 341.Fenestrella (in error for Fenestella) D'Orbigny, Prodr. de Pal., 1, 1850, p. 44.Actinostoma Young and Young, Quart. Jour. Geol. Soc. London, 30, 1874, p. 681. ? Vine, Proc. Yorkshire Geol. Polyt. Soc, 9, 1885, p. 84.Flabelliporina Simpson, 13th Ann. Rep. State Geol. New York for 1893, 1895, pp.703, 724; 47th Ann. Rep. New York State Mus., pp. 897, 918; 14th Ann.Rep. State Geol. New York for 1894, 1897, p. 521.Fenestella acmea Hall. See Semicoscinium acmeum. 536 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM.Fenestella acuticosta Roemer.Fenestella acuticosta Roemer, Sil. Fauna West. Tennessee, 1860, p. 30, pi. 2, figs.15, 15a.Niagaran (Bro-wnsport): Perry County, Tennessee.Fenestella (Cycloporlna) altidorsata Ulricli and Bassler.Fenestella (Cycloporina) altidorsata Uli-ich and Bassler, Maryland Geol. Surv.,Low. Dev., 1913, p. 282, pi. 45, fig. 15; pi. 49, figs. 1-3.Helderbergian (Keyser): Devils Backbone, near Cumberland, Maryland.Cofypes.?Cat. No. 60749, U.S.N.M.Fenestella ambigua Hall. See Loculipora ambigua.Fenestella aspera Hall. See Chasmatopora aspera.Fenestella bellistriata Hall.Fenestella bellastriata Hall, Trans. Albany Inst., 10, 1883, p. 63 (abstract, 1879,p. 7); nth Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 252.?Ulrich, Geol.Surv. Illinois, 8, 1890, pi. 54, fig. 2.Niagaran (Waldron): Waldron, Indiana.Plesiotype.?C&t. No. 44081, U.S.N.M.Fenestella bicornis Spencer. Not recognizable.Fenestella bicornis Spencer, Trans. St. Louis Acad. Sci., 4, 1884, p. 604, pi. 7,fig, 2; Bull. Mus. Univ. State Missomi, 1, 1884, p. 55, pi. 7, 2.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, p. 247.Clinton: Hamilton, Ontario.Fenestella conferta Hall. See Polypora conferta.Fenestella cribrosa Hall.Fenestella cribrosa Hall, Pal. New York, 2, 1852, p. 166, pi. 40D, figs. 3a, b.?Bass-ler, Bull. U. S. Geol. Siu-v., 292, 1906, pp. 50, 51, pi. 19, figs. 3-5.Clinton (Rochester): Lockport and Middleport, New York.Plesiotype.?Cat. No. 35553, U.S.N.M.Fenestella cumberlandica Ulrich and Bassler.Fenestella cumberlandica Ulrich and Bassler, Maryland Geol. Surv., Low. Dev.,1913, p. 280, pi. 47, figs. 1, 2.Helderbergian (Keyser): Cash Valley, etc., near Cumberland, Maryland.Cotypes.?Ca.t. No. 60745, U.S.N.M.Fenestella elegans Hall.Fenestella elegans Hall, Pal. New York, 2, 1852, p. 164, pi. 40D, figs, la-g.?Chapman, Canadian Jour., n. s., 7, 1862, p. 109, fig. 87; ibid., 8, 1863, p. 212,fig. 217; Expos. Min., Geol. Canada, 1864, p. 112, fig. 87; p. 184, fig. 217.?Grabau, Bull. New York State Mus., 45, 1901, p. 170, fig. 70; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 170, fig. 70.?Bassler, Bull. U. S. Geol. Surv., 292,1906, p. 51, pi. 19, figs. 1, 2.?Grabau and Shimer, N. A. Index Fossils, 1, 1907,p. ]42, fig. 198.Clinton (Rochester): Lockport, Rochester, etc.. New York; Ontario.Fenestella flabelliformis Eichwald. See Dictyonema flabelliforme.Fenestella gracilis Hall. See Chasmatopora gracilis. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 537Fenestella granulosa Whitfield.Fenestella granulosa Whitfield, Ann. Rep. Geol. Surv. Wisconsin for 1877, 1878,p. 68; Geol. Surv-. Wisconsin, 4, 1882, p. 252, pi. 12, figs. 1, 2.?Buel, Trans.Wisconsin Acad. Sci., 5, 1882, p. 187.?Chamberlin, Geol. Wisconsin, 1, 1883,p. 173, fig.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.835, pi. 29, figs. 7, 7a.Fenestella oxfordensis Ulrich, Jour. Cincinnati Sec. Nat. Hist., 5, 1882, p. 159,pi. 6, fig. 13.Richmond: Delafield, etc., Wisconsin (Maquoketa); Oxford, etc., Ohio (Waynes-ville-\Miitewater ) . Plesiotype.?Q2A. No. 43635, U.S.N.M. (Holotype of F. oxfordensis.)Fenestella incepta Hall. See Chasmatopora incepta.Fenestella nervata Nicholson. See Ptiloporella nervata.Fenestella oxfordensis Ulrich. See Fenestella granulosa.Fenestella parvullpora Hall.Fenestella parvulipora Hall, 28th Ann. Rep. New York State Mus., doc. ed.,1876, pi. 12, figs. 1-9; ibid., Mus. ed., 1879, p. 123, pi. 12, figs. 1-9; 11thAnn. Rep. Indiana Geol. Nat. Hist., 1882, p. 249, pi. 11, figs. 1-9.Niagaran (Waldron): Waldron, Indiana.Fenestella pertenuis Hall.Fenestella pertenuis Hall, Trans. Albany Inst., 10, 1883, p. 62 (abstract, 1879,p. 6); 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 251.Niagaran (Waldron): Waldron, Indiana.Fenestella prisca? Hall. See Semicoscinium tenuiceps.Fenestella prolixa Hall.Fenestella prolixa Hall, Trans. Albany Inst., 10, 1883, p. 64 (abstract, 1879, p. 8);11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 253.Niagaran (Waldron): Waldron, Indiana.Fenestella punctostrla.ta Hall. See Polypora punctostriata. ?Fenestella subarctica Whiteaves.Fenestella subarctica Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App.F, 1904, p. 39; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 249, pi. 23.Niagaran: Ekwan River, Canada.Fenestella tantulus Hall. See Polypora tantula.Fenestella tenuiceps Hall. See Semicoscinium tenuiceps.Fenestella tenuis Hall.Fenestella tenuis Hall, Pal. New York, 2, 1852, p. 51, pi. 19, figs. 5a-c.Clinton: Wolcott Furnace, Whiting's Mill, Wayne County, New York.FISTULIPORA McCoy.Genotype: FistuLipora minor McCoy = Calamopora incrustans Phillips.FistuUpora McCoy, Ann. Mag. Nat. Hist, 2d ser., 3, 1850, p. 131, figs, a, b.?Milne-Edwards and Haime, Pol. Foss. Terr. Pal., 1851, p. 219.?McCoy, British Pal.Foss., 1854, p. 11; Contr. British Pal., 1854, p. 99.?Pictet, Traite de Pal., 2ded., 4, 1857, p. 438.?Billings, Canadian Nat. Geol., 3, 1858, p. 419; Geol.Surv. Canada, Rep. Progr. for 1857, 1858, p. 165; Canadian Jour., n. s., 4, 538 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.FISTULIPORA?Continued.1859, p 97.?Mine-Edwards, Hist. Nat. dea Corall., 3, 1860, p. 238.?Nichol-son, Pal. Prov. Ontario, 1874, p. 63.?Dybowski, Verh. Mineral. Gesell.St. Petersburg (2), 10, 1876, p. 180.?Lindstrom, Ann. Mag. Nat. Hist., ser. 4,18, 1876, p. 6.?Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist.,1878, p. 38.?Nicholson, Pal. Tabulate Corals, 1879, p. 292.?Zittel, Handb.d. Pal., 1, 1880, p. 616; Genus Monticulipora, 1881, p. 91.?Uhich, Jour.Cincinnati Soc. Nat. Hist., 5, 1882, p. 156.?Roemer, Leth. geog., pt. 1, Leth.Pal., 1883, p. 477; Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 43.?Thomp-son, Proc. Phil. Soc. Glasgow, 14, 1883, p. 351.?Nicholson and Foord, Ann.Mag. Nat. Hist., 5th ser., 16, 1885, p. 500.?Waagen and Wentzel, Pal. Indica,13th ser., 1886, pp. 909, 922.?Hall and Simpson, Pal. New York, 6, 1887, p.18.?James and James, Jour. Cincinnati Soc. Nat. Hist., 11, 1888, p. 32. ? MUer, N. A. Geol. Pal., 1889, p. 305.?Uhich, Geol. Surv. Illinois, 8, 1890,pp. 382, 474.?J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 119.?Uhich, Zittel's Textb. Pal. (Engl, ed.), 1896, p. 269; p. 105 (not Uhich).?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 559.?Lind-strom, Kongl. Sven. Vet. Akad. Handl., 32, 1899, pp. 48, 52.?Nickles andBassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 25, 266.?Condra, Nebraska,Geol. Surv., 2, pt. 1, 1903, p. 29.?Cumings, 30th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1906, p. 1292.?Bassler, Bull. U. S. Geol. Surv-., 292, 1906, p.22.?Grabau and Shimer, N. A. Index Fossils, 1, p. 124.?Ilennig, Archiv. fiirZool., 4, pt. 21, 1908, p. 16.?Bassler, Zittel-Eastman Textb. Pal., 1913,p. 329.?Uhich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 262.Didymopora Uhich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 156.Dybowskia Waagen and Pichl, Pal. Indica, ser. 13, p. 717.Dybowskiella Waagen and Wentzel, Pal. Indica, 13th ser., 1886, pp. 910, 916.Stuckenberg, Mem. du Comite Geologique Russia, 10, 3, 1895, p. 22.?Lind-strom, Kongl. Sven. Vet.-Akad. Handl., 32, 1899, pp. 52, 53.Lichenalia (not Hall, 1852) Hall and Simpson, Pal. New York, 6, 1887, p. xvi.?Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 168.?Miller, N. A. Geol.Pal., 1889, p. 311.?Simpson, 14th Ann. Rep. State Geologist New York for1894, 1897, p. 559.?Grabau, Bull. Buffalo Soc Nat. Sci., 6, 1889, p. 171.Flstulipora crustula Bassler.Ceramopora incrustans Hall, Pal. New York, 2, 1852, p. 169, pi. 40E, figs. 2a-d.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 198.?Grabau, Bull.New York State Mus., 45, 1901, p. 163, fig. 59; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 163, fig. 59.Fistulipora crustula Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 24, pi. 7, figs.7-10; pi. 8, figs. 16, 17; pi. 23, fig. 15.Clinton (Rochester): Lockport, Rochester, etc., New York; Grimsby, Ontario.Cotypes.?Cat. No. 35481, U.S.N.M.FisTTJUPORA FLABELLATA Ulrich. See Chiloporella flabellata.Fistulipora halli Rominger.Fistulipora Halli Rominger, Proc. Acad. Nat. Sci. Philadelphia, 1886, p. 119.Lichenalia concentrica var. parvula Hall, 28th Ann. Rep. New York State Mus.,doc. ed., 1876, pi. 7, figs. 1, 2; ibid., mus. ed., 1879, p. 117, pi. 7, figs. 1, 2;11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 241, pi. 6, figs. 1, 2.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 340, figs.Niagaran (Waldron): Waldron, Indiana; Newsom, Tennessee. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 539Fistullpora heinisphcrica (Roemer).Thecostegites hemisphericus Roemer, Sil. Fauna West. Tennessee, 1860, p. 25,pi. 2, figs. 3, 3a.?Miller, N. A. Geol. Pal., 1889, fig. 228 (p. 207).Fistulipora hemispherica Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 270.Fistulipora (Thecostegites) hemispherica Foerste, Jour. Geol., 11, 1903, p. 712(loc. occ).Niagaran (Brownsport): PeiTy and Wayne Counties, Tennessee.Fistulipora laminata (Hall).Callopora laminata Hall, Pal. New York, 2, 1852, p. 146, pi. 40, figs. 3a-e.Leioclema? laminatum Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 416, 425.Lioclema (?Nicholsonella) laminatum Nickles and Bassler, Bull. U. S. Geol.Surv., 173, 1900, p. 304.Fistulipora laminata Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 22, 23, pi. 7,figs. 4-6; pi. 8, figs. 9, 10.Clinton (Rochester): Lockportand Rochester, New York; Grimsby, Ontario.Plesiotype.?Cd.t. No. 35467, U.S.N.M.FiSTUxiPOKA? LAXATA Ulrich. See Favositella laxata.Fistulipora lens Whitfield. See Calloporella? lens.Fistulipora lockportensis Bassler.Fistulipora lockportensis Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 23, pi. 7,figs. 1-3.Clinton (Rochester): Lockportand Rochester, New York.Cotypes.?G&t. No. 35489, U.S.N.M.Fistulipora? multipora James.Fistulipora? multipora James, Paleontologist, 1, 1878, p. 2.?Bassler, Proc. U. S.Nat. Mus., 30, 1906, p. 38.Cincinnatian: Cincinnati, Ohio, and vicinity.Observation.?Not a valid species. Insufiiciently described and tj-pes includea variety of forms.Fistulipora neglecta Rominger.Fistulipora neglectaRominger, Proc. Acad. Nat. Sci. Philadelphia, 1866, p. 119. ? Nickles and Bassler, Bull. U. S. Geol. Surv , 173, 1900, p 272.?Grabau andShimer, N. A. Index Fossils, 1, 1907, p. 125.Lichenalia concentrica Hall, 28th Ann. Rep. New York State Mus., doc. ed., 1876,pi. 5, figs. 9-16; pi. 6, figs. 1, 2, 4, 7-10; pi. 7, figs. 3-11; ibid., mus. ed., 1879,p. 116, pi. 5, figs. 9-16; pi. 6, figs. 1, 2, 4, 7-10; pi. 7, figs. 3-11.?Quenstedt,Roehren- und Stemkorallen, 1881, p. 95, pi. 146, 71, 72.?Hall, 11th Ann.Rep. Indiana Geol. Nat. Hist., 1882, p. 240, pi. 4, figs. 9-16; pi. 5, figs. 1, 2, 4,7-10; pi. 6, figs. 3-11.?Uh-ich, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, pi. 3,fig. 5.?Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 168, pi. 17, 10.Niagaran (Waldron): AValdron, Indiana; Newsom, Tennessee.Fistulipora neglecta maculata (Hall).Lichenalia concentrica var. maculata Hall, 28th Ann. Rep. New York State Mus.,doc. ed., 1876, pi. 6, figs. 3, 5, 6; ibid., mus. ed., 1879, p. 117, pi. 6, figs. 3,5, 6; 11th Ann. Rep. Indiana Geol. Nat. Hist., 1882, p. 241, pi. 5, figs. 3, 5,6.?I-esley, Geol. Siu-v. Pennsylvania, Rep. P 4, 1880, p. 340, fig.Fistulipora neglecta-maculata Nickles and Bassler, Bull. U. S. Geol. Surv., 173,1900, p. 272.Niagaran (Waldron): Waldron, Indiana; Newsom, Tennessee. 540 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.FisTULiPORA owENi .Tames. See Coeloclema oweni.FisTULiPORA RUGOSA TMutfield. See Batostoma? rugosum.Fistulipora eiliiriana James.Fistulipora siliuiana James, Paleontologist, No. 3, 1879, p. 19.?Bassler, Proc.U. S. Nat. Mus., 30, 1906, p. 39.Cincinnatian: Cincinnati, Ohio, and vicinity.Observation.?Not a valid species. The types are not figiu'ed, are insufBcientlydescribed, and proved upon examination to include several distinct species.Fistulipora solidissima WTiitfield. See Lioclemella solidissima.Fistulipora tuberculosa (Hall).Rhinopora tuberculosa Hall, Pal. New York, 2, 1852, p. 170, pi. 40E, figs. 4a-c.?Grabau, Bull. New York State Mus., 45, 1901, p. 175, fig. 77; Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 175, fig. 77.Fistulipora tuberculosa Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 23, pi. 7,figs. 11-15; pi. 8, figs. 7, 8; pi. 23, fig. 14.Clinton (Rochester): Lockport, New York; Grimsby, Ontario.Thin sections of holotype and plesiotype.?Gat. Nos. 35485, 35486, U.S.N.M.FISTULIPORELLA Simpson. Genotype: F. constricta Hall and Simpson.Fistuliporella Simpson, 14th Ann. Rep. State Geol. New York, 1897, p. 560. ? Ulrich and Bassler, Maryland Geol. Siur-., Low. Dev., 1913, p. 262.Fistuliporella cumulata Ulrich and Bassler.Fistuliporella cumulata Ulrich and Bassler, Maryland Geol. Surv., Low. Dev.,1913, p. 263, pi. 41, figs. 1-5.Helderbergian (Keyser): Cash Valley and Pinto, Maryland; Keyser, WestVirginia.Cotypes.?Cat. No. 53661, U.S.N.M.Fistuliporella marylandica Ulrich and Bassler.Fistuliporella marylandica Ulrich and Bassler, Maryland Geol. Surv., Low, Dev.,1913, p. 2G6, pi. 45, figs. 8-11; pi. 48, fig. 4.Helderbergian (Keyser): Cash Valley, Maryland.Cotypes.?C&t. No. 60756, U.S.N.M.'Fistuliporella maynardi Ulrich and Bassler.Fistuliporella maynardi LHrich and Bassler, Maryland Geol. Surv., Low. Dev.,1913, pi. 46, figs. 3-7.Helderbergian (Keyser): Cash Valley, Marjdand.Cotypes.?Cat. No. 60755, U.S.N.M.Fistuliporella minima Ulrich and Bassler*Fistulii^orella minima Ulrich and Bassler, Maryland Geol. S\u-v., Low. Dev.,1913, p. 265, pi. 43, figs. 13-16.Helder])ergian (Keyser): Cash Valley, Maryland; Keyser, West Virginia.Eolotype.?Cat. No. 53659, U.S.N.M.Fistuliporella qulnquedentata Ulrich and Bassler.Fistuliporella qulnquedentata Ulrich and Bassler, Maryland Geol. Surv., Low.Dev., 1913, p. 264, pi. 41, figs. 6-8.Helderbergian (Keyser): Keyser, West Virginia.Eolotype.?Cat. No. 53660, U.S.N.M.Flabelliporella Simpson. See Polypora McCoy. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 541Flabelliporina Simpson. See Feneatella Lonsdale.FLETCHERIA Edwards and Haime. Genotype: F. tubifera Edwards and Haime.Fletcheria Edwards and Haime, Mon. d. Polyp. Foss. d. Terr. Pal., 1S51 (Arch, duMus. d'Hist. Nat., 5), p. 156, 300.?Pictet, Traite do Pal., 2d ed., 4, 1857, p.446.?Milne-Edwards, Hist. Nat. d. Corall, 3, 1860, p. 300.?Duncan, Pep,41st Meeting British Assoc. Adv. Sci., 1872, p. 130.?Lindstrom, Ann. Mag.Nat. Hist., 4th ser., 18, 1876, p. 13.?Zittel, Handb. Pal., 1, 1879, p. 235.?Nicholson, Tab. Corals Pal. Period, 1879, p. 206.?Roemer, Leth. geog., pt. 1,Leth. Pal., 1883, p. 488.?Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4,pt. 1, 1889, p. 47.?Sherzer, Amer. Geol., 7, 1891, pp. 296-301.Fletcheria incerta (Billings).Columuaria incerta Billings, Canadian Nat. Geol., 4, 1859, p. 428, fig. 1, 2;Geol. Canada, Geol. Surv. Canada, 1863, p. 124, fig. 44, a, b.Fletcheria incerta Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p.48, pi. 1, figs. 8, 8a, 9.Chazyan: Jlingan Islands, Island of Montreal, etc., Quebec; Ottawa, Ontario.FRAMMIA Holtedahl. Genotype: F. dissimilis Holtedahl.Frammia Holtedahl, 2d Arct. Exp. Fram, 1898-1902, No. 32, 1914, p. 35.Frammia dissimilis Holtedahl.Frammia dissimilis Holtedahl, 2d Arct. Exp. "Fram," 1898-1902, No. 32, 1914,p. 35, pi. 8, figs. 17, 18, ?19.Helderbergian (Lower beds): Southwestern Ellesmereland, Arctic America.FucoiDES ALLEGHANiENSis Taylor. See Arthrophycua alleghaniensis.Fucoides auriformis Hall.Fucoides auriformis Hall, Nat. Hist. New York, Geol., 4, 1843, p. 47, pi. 1, fig. 2;Pal. New York, 2, 1852, p. 7, pi. 3, fig. 3.Upper Medinan: I^Iedina, etc., New York.Observation.?Probably a biuTow.Fucoides biloba Vanuxem. See Rusophycus biloba.Fucoides Brongniartii Harlan. See Arthrophycua alleghaniensis.Fucoides demissus Vanuxem. See Phytopsis tubulosa.Fucoides dentatus Brongniart. See Diplograptus dentatus and Diplograptuafoliaceus.Fucoides iiarlani Vanuxem. See Arthrophycua alleghaniensis.Fucoides heterophyllus Hall.Fucoides heterophyllus Hall, Nat. Hist. New York, GecL, 4, 1843, p. 47, pi. 1,fig. 3; Pal. New York, 2, 1852, p. 7, pi. 3, fig. 4.Upper Medinan: Medina, etc.. New York.Observation.?Probably a burrow.Fucoides linearis Haldemann. See Scolithus linearis.Fucoides serra Brongniart. See Tetragraptus serra.Fucoides simplex Emmons. See Diplograptus foliaceus.FUNGISPONGIA Ringueberg. Genotype: F. irregularis Ringueberg.Fimgispongia Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884, p. 147. 542 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Fungispongia Irregularis Ringueberg.Fungispongia irregularis Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1884,p. 147, pi. 3, fig. 3.Lower Clinton: Lockport, New York.FUSISPIRA Hall. Genotype: F. ventricosa Hall.Fusispira Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 229 (Extract,1871, p. 5).?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, pp. 315, 316.?Zittel, Handb. Pal., 2, 1882, p. 239.?Miller, N. A. Geol. Pal., 1889, p. 404.?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1075.?Grabau andShimer, N. A. Index Fossils, 1, 1909, p. 697.Fusispira angusta Ulrich and Scofield.Fusispira angusta Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1079,pi. 81, figs. 28-31.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 697,fig. 1002e.Trenton: Near Cannon Falls and near Fountain, Minnesota (Prosser); nearBurgin, Kentucky.Cotypes.?C&t. No. 45811, U.S.N.M.Fusispira angusta subplana Ulrich and Scofield.Fusispira angusta var. subplana, Ulrich and Scofield, Geol. Minnesota, 3, pt. 2,1897, p. 1079, pi. 81, fig. 32.Trenton (Prosser): Near Cannon Falls, Minnesota.Cotypes.?Csit. No. 43812, U.S.N.M.Fusispira calcifera (Billings).Subulites calcifera BiJlings, Canadian Nat. Geol., 4, 1859, p. 360, fig. 10; Geol.Canada, Geol. Siu-v. Canada, 1863, p. 120, fig. 34.?Miller, N. A. Geol. Pal.,1889, p. 428, fig. 717.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p.1142, fig.Fusispira calcifera Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070(gen. ref.).Canadian (Romaine): Mingan Islands, Quebec.Fusispira compacta Hall and Whitfield.Fusispira compacta Hall and Whitfield, IT. S. Geol. Expl. 40th Paral., 4, 1877, p.236, pi. 1, fig. 25.Pogonip: Pogonip Mountain, Wbite Pine District, Nevada.Eolotype.?C&t. No. 17365, U.S.N.M.Fusispira convexa Ulrich and Scofield.P^isispira convexa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1077,pi. 80, figs. 8-10.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 697,fig. 1002d.Trenton: Trenton Falls, New York; near Cannon Falls, Minnesota (Prosser).Cotypes?Cat. Nos. 45813, 45814, U.S.N.M.Fusispira daphne (Billings).Subulites Daphne Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 223, fig.206.Fusispira daphne Ulrich and Scofield, Geol. Minnesota, 1897, p. 1070 (gen. ref.).Chazyan (Quebec?L): Point Rich, Newfoundland. BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 543Fuslspira elongata Hall.Fusispira elongata Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, pi. 8,fig. 5, p. 229 (Extract, 1871, p. 6).?Whitfield, Geol. Wisconsin, 4, 1882, p.245, pi. 9, fig. 3.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 167, fig.?Whit-eaves, Pal. Fossils, Geol. Surv. Canada, 3, pt. 3, 1897, p. 200 (loc. occ).Trenton: Elkader, Iowa (Prosser); Lower Fort Garry, Manitoba.Fusispira inflata (Meek and Worthen).Subulites inflatus Meek and Worthen, Proc. Acad. Nat. Sci., Philadelpliia, 1870,p. 47; Geol. Surv. Illinois, 6, 1875, p. 495, pi. 23, fig. 5.Fusispira inflata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1075, pi.80, figs. 17 and 18.?Whiteaves, Pal. Fossils, 1, Geol. Surv. Canada, 3, pt. 3,1897, p. 199.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 168.?Grabauand Shimer, N. A. Index Fossils, 1, 1909, p. 697, fig. 1002a.Trenton: Carroll County, Illinois (Galena); Hader, Wykoff, etc., Minnesota(Prosser and Stewartville) ; Lake Winnipeg, Canada; Baffin Land.Plesiotypes?Cat. Nos. 45815, 45816, U.S.N.M.Fusispira inflata ventricosa (Hall).Fusispira ventricosa Hall, 24th Rep. New York State Mus. Nat. Hist., 1872, p. 229,pi. 8, fig. 6 (extract, 1871, p. 5).?Whitfield, Geol. Wisconsin, 4, 1882, p. 245,pi. 9, fig. 2.?Miller, N. A. Geol. Pal., 1889, p. 405, fig. 676.?Whiteaves,Canadian Rec. Sci., 5, 1893, p. 328 (loc. occ).Fusispira inflata var. ventricosa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2,1897, p. 1075, pi. 80, figs. 17, 18.Trenton: Depere, West Jefferson, etc., Wisconsin; Stewartville, Wykoff, etc.,Minnesota.Fusispira intermedia Ulrich and Scofield.Fusispira intermedia Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1076,pi. 80, figs. 19-21.Trenton (Prosser and Stewartville): Stewartville and south of Cannon Falls,Minnesota.Cotype.?Cat. No. 45817, U.S.N.M.Fusispira nobilis Ulrich and Scofield.Fusispira nobilis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1078,pi. 80, figs. 2-4.?Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 168.Trenton: Wykoff, Pleasant Grove, and Fountain, Minnesota (Prosser); BaffinLand.Cotypes.?Cat. No. 45818, U.S.N.M.Fusispira obesa (Whitfield).Subulites obesus Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 318, pi. 26,fig. 7.Fusispira obesa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070,(gen. ref.).Canadian (Beekmantown): Fort Caesin, Vermont.Fusispira planulata Ulrich and Scofield.Fusispira planulata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1078,pi. 81, figs. 26, 27.Trenton (Prosser): Wykoff, Minnesota; Eagle Point, Iowa.Holotype.?Cat. No. 45819, U.S.N.M. 544 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Fusispira psyche (Billings).Subulites psyche Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 188, fig.169.Fusispira psyche Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1070(gen. ref.).Canadian (Beekmantown) : Near St. Antoine, above Quebec, Canada.Fusispira schucherti Ulrich and Scofield.Fusispira schucherti Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1076,pi. 80, fig. 1.Black Kiver (Platteville): Beloit, Wisconsin.Fusispira(?) spicula Sardeson.Fu8ispira(?) spicula Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 336,pi. 6, figs. 10, 11.Black River (Decorah) : Minneapolis, Minnesota.Fusispira subbrevls Ulrich and Scofield.Fusispira subbrevis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1076,pi. 80, figs. 11-16.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.697, fig. 1002b.Trenton (Prosser and Stewartville) : South of Cannon Falls and Stewartville,Minnesota; Decorah, Iowa.Cotype.?Csit. No. 45820, U.S.N.M.Fusispira subfusiformis (Hall).Murchisonia subfusiformis Hall, Pal. New York, 1, 1847, p. 180, pi. 39, figs. 2a, b;3d Rep. New York State Cab. Nat. Hist., 1850, p. 179, pi. 4, fig. 2 (doc. ed.,p. 171).?Chapman, Canadian Jour., n. s., 7, 1862, p. 121, fig. 123; ibid.,. 8,1863, p. 199, fig. 190; Expos. Min., Geol. Canada, 1864, p. 124, fig. 123; p.171, fig. 190.?Nicholson, Rep. Pal. Proc. Ontario, pt. 2, 1875, p. 18, fig. 7b.Loxonema subfusiformis D'Orbigny, Prodr. de Pal., 1, 1849, p. 5 (gen. ref.). ? Emmons, Amer. Geology, 1, pt. 2, 1855, p. 163.Subulites subfusiformis BilUngs, Geol. Canada, Geol. Surv. Canada, 1863, p. 946(gen. ref.).Fusispira subfusiformis Hall, 24th Rep. New York State Cab. Nat. Hist., 1871,p. 229 (gen. ref.).?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 316.Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1077, pi. 81, figs. 38,39.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 697, fig. 1002c.Trenton: Jefferson and Lewis Counties, New York; Goodhue and Fillmore Coun-ties, Minnesota; Burgin, Kentucky; Canada.Plesiotype.?Cat. No. 45821, U.S.N.M.Fusispira sulcata Ulrich.Fusispira sulcata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1077, pi. 81, figs. 5-7.Fusispira cf. sulcata Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 137,pi. 3, figs. 4, 5.Trenton (Upper) : Rogers Gap and Covington, Kentucky.Eolotype?Cat. No. 45822, U.S.N.M.Fusispira terobriformis Hall.Fusispira terebriformis Hall, 24th Rep. New York State Cab. Nat. Hist., 1872,p. 230, pi. 8, fig. 4 (Extract, 1871, p. 6).?Miller, Cincinnati Quart. Jour. Sci.,1, 1874, p. 316.Eden (Economy): Cincinnati, Ohio.Fusispira ventrioosa Hall. See Fusispira inflataventricosa. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 545Fuslspira vlttata (TIall).Murcliisonia vittata Hall, Pal. New York, 1, 1847, p. 181, pi. 39, figs. 3a, b.Loxonema vittata D'Orbigny, Prodr. de Pal., 1, 1849, p. 5 (gen. ref.).?Emmons,Amer. Geology, 1, pt. 2, 1855, p. 163.Fusispira vittata Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 229(Extract, 1871, p. 5).Trenton: Adams, Jefferson County, New York.Gaurocrinus Miller. See Reteocrinus Billings.Gaurocrinus angularis IMiller. See Ptychocrinus parvus.Gaurocrinus cognatus Miller. See Reteocrinus nealli.Gaurocrinus splendens Miller. See Ptycliocrinus splendens.GAZACRTNUS Miller. Genotype: G. inornatua Miller.Gazacrinus Miller, IStli Rep. Geol. Siirv. Indiana, 1894, p. 305 (adv. sheets, 1892,p. 49); N. A. Geol. Pal., 1st App., 1892, p. G79;ibid., 2d App., 1897, p. 746.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 78, fig. 38(includes notes on synonymy).?Bather, Treatise on Zool., pt. 3, Echino-derma, London, 1900, p. 188, fig. 119.?Springer, Zittel-Eastman Textb. Pal.,2d ed., 1913, p. 187.Idiocrinus Wachsmuth and Springer, Amer. Geol., 10, 1892, p. 135; Mem. Mus.Comp. Zool. Harvard (N. A. Crin. Camerata), 20, 1897, p. 202.?Bather,Treatise on Zool. (Lankester), pt. 3, 1900, p. 188.?Zittel, Grundzuge Pal., 1,1910, p. 161. (Genotype: I. elongatus Wachsmuth and Springer.)Gazacrinus immatiiriis (Hall).Thysanocrinus immaturus Hall, Pal. New York, 2, 1852, p. 191, pi. 42, figs. 4a-f.Rhodocrinus (Thysanocrinus) immaturus Shumard, Trans. Acad. Sci. St. Louis,2, 1866, p. 398.Dimerocrinus immaturus "Wachsmuth and Springer, Proc. Acad. Nat. Sci. Pliila-delpliia, 1881, p. 373 (Rev. Pal., pt. 2, p. 199).Idiocrinus immaturusWachsmuth and Springer, Meiu. Mus. Comp. Zool. Harvard,20, 1897, p. 206, pi. 18, figs. lOa-c.CUnton (Rochester): Lockport, New York.Gazacrinus inornatus Miller.Gazacrinus inornatus Miller, 18th Rep. Indiana Dept. Geol. Nat. Res., 1894, p. 303,pi. 5, figs. 9, 10, 15-17 (adv. sheets, 1892, p. 49, pi. 5, figs. 9, 10, 15-17); N. A.Geol. Pal., 1st App., 1892, p. 679, figs. 1232-33.?Bather, Treatise on Zool.,pt. 3, Echinoderma, London, 1900, p. 188, fig. 119, 1.Idiocrinus elongatus Wachsmuth and Springer, Amer. Geol., 10, 1892, p. 136;Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 203, pi. 18, figs. 8a-c.?Bather,Geol. Mag., dec. 4, 6, 1899, p. 126.Niagaran (Laurel): St. Paul, Shelby County, Indiana.Gazacrinus mjjjor Wollcr.Gazacrinus major Weller, Bull. Cliicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1,1900, p. 78, pi. 3, figs. 1, 2.Niagaran (Racine): Hawthorne, Illinois.Gazacrinus milliganoo (Miller and Gurley).Thysanocrinus miiliganie Miller and Gurley, Bull. Illinois State Mus. Nat. Hist.,8, 1896, p. 51, pi. 3, figs. 23-25.?Miller, N. A. Geol. Pal., 2d App., 1897, p.754, fig. 1403.Niagaran (Brownsport): Decatur County, Tennessee.84243??Bull. 92?15 35 546 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Gazacriuus minor Weller.Gazacrinus minor Weller, Bull. Chicago Acad. Sci., Nat. Hist. Siirv., 4, pt. 1,1900, p. 80, pi. 3, figs. 3, 4.Niagaran (Racine): Bridgeport, Illinois.Gazacriuus ventrlcosus (Wachemuth and Springer).Idiocrinus ventricosus Wachsmuth and Springer, Amer. Geol., 10, 1892, p. 137;Mem. Mus. Comp. Zool. Harvard, 20, 1897, p. 205, pi. 18, fig. 9a, b.Gazacrinus ventricosus Bather, Treatise on Zool., pt. 3, Echinoderma, London,1900, p. 188, fig.Niagaran (Laurel): St. Paul, Shelby County, Indiana.Geinitzella Waagen and Wentzel. See Batostomella Uhich,GEISONOCERAS Hyatt. Genotype: Orthoceras rivale Barrande.Geisonoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 275; Zittel-EastmanTextb. Pal., 1, 1900, p. 518; ibid., 2d ed., 1913, p. 598.Geisonoceras shumardi (Billings).Orthoceras shumardi Billings, Can. Nat. Geol., 4, 1859, p. 460, fig. 36.Geisonoceras shumardi Ruedemann, Bxill. New York State Mus., 90, 1906, p. 437,pi. 12, fig. 4.Orthoceras (Geisonoceras) shumardi Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 48.Chazyan: Mingan Islands, Canada (Mingan); Chazy, New York (Day Point,Crown Point).Geocrinus D'Orbigny. See Periechocrinus Austin.GERASAPHES Clarke. Genotype: G. ulrichana Clarke.Gerasaphes Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 710.Gerasaphes ulrichana Clarke.Gerasaphes ulrichana Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 710, figs. 14-16. ? Miller, N. A. Geol. Pal., 2d App., 1897, p. 788.?Ruedemann, Bull. NewYork State Mus., 49, 1906, p. 60.Trenton (Upper): Mouth of Licking River, Covington, Kentucky.Eolotype.?Cat. No. 41951, U.S.N.M.GiLBERTSocRiNiTES AMERicANUS Troost. See Diabolocrinus vesperalia.GiLBERTSocRiNiTEs(?) DUBius Troost. See Periechocrinus dubius.Gilbi:rtsocrinites roemeri Troost. Sec Dimerocrinus roemeri.GIRVANELLA Nicholson and Etheridge.Genotype: G. problcmatica Nicholson and Etheridge.Girvanella Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1878, p. 23,pi. 9, fig. 24.?Nicholson, Geol. Mag., dec. 3, 4, 1888, p. 22.-^ames, J. F.,Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 1891, pp. 50, 51.?Dawson, CanadianRec. Sci., 7, 1896, p. 212.Strephochetus Seely, Amer. Jour. Sci. Arts, 3d ser., 30, 1885, p. 357; ibid., 32,1886, p. 31.?Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 91.?Hinde, Geol.Mag., dec. 3, 4. 1887, p. 227.?Miller, N. A. Geoi. Pal., 1889, p. 165.?Seely,Rep. State Geol. Vermont, 3, 1902, p. 156. (Genotype: S. ocellatus Seely.)GIryanella antiqua Dawson.Girvanella antiqua Dawson, Canadian Rec. Sci., 7, 1896, p. 214.Cambrian or I^ower Ordovician bowlder: Little Metis, Quebec. BIBLIOGRAPHIC LIST OF GENERA AND SrECIES. 547Girvanella atrata (Seely).Strephochetus atratua Seely, Amer. Jour. Sci. Arts, 3d ser., 32, 1886, p. 32; Rep.State Geol. Vermont, 3, 1902, p. 157, pi. 57, fig. 1, pi. 58, fig. 9.Cliazyan (Crown Point): McBrides Bay, South Hero, Vermont; Chazy, NewYork.Girvanella bralnerdi (Seely).Strephochetus Brainerdi Seely, Amer. Jour. Sci. Arts, 3d ser., 32, 1886, p. 32; Rep.State Geol. Vermont, 3, 1902, p. 156, pi. 57, figs. 2, 58, figs. 7, 8.Chazyan (Crown Point): Chazy, New York. .Observation.?See G. ocellata (Seely).Girvanella labyrinthica Ulrich. See Streptospongia labyrinthica.Girvanella ocellata (Seely).Strephochetus ocellatus Seely, Amer. Jour. Sci. Arts, 3d ser., 30, 1885, p. 357,figs. 1-3; Amer. Jour. Sci., 3d ser., 32, 1886, p. 31.?Lesley, Geol. Surv.Pennsylvania, Rep. P4, 1890, p. 1083.?Dawson, Canadian Rec. Sci., 7, 1896,p. 213.?Seely, Rep. State Geol. Vermont, 3, 1902, p. 156, pis. 56, 57, figs.3, 4, 59.Chazyan: Addison County, Vermont; Crown Point, New York (Crown Point);East Tennessee (Lenoir).Observation.?Girvanella brainerdi and G. jsrunus Seely are probably synonymsof this species.Girvanella prunus (Seely).Strephochetus prunus Seely, Rep. State Geol. Vermont, 3, 1902, p. 160, pi. 57,fig. 5; pi. 58, fig. 6.Chazyan (Crown Point): South Hero and Isle La Motte, Vermont; Chazy, NewYork.Observation.?See G. ocellata (Seely).Girvanella riclimondensis (Miller).Stromatocerium richmondense Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882,p. 41, pi. 2, figs. 1, la, lb.?James, J. F., ibid., 9, p. 252.Girvanella richmondense James, J. F., ibid., 14, pt. 1, 1891, p. 51.Strephochetus Richmondense Seely, Amer. Jour. Sci. Arts, 3d ser., 32, 1886, p.33.?Miller, N. A. Geol. Pal., 1889, p. 165, fig. 122.?Seely, Rep. State Geol.Vermont, 3, 1902, p. 157.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 706, pi. 2, figs. 3-3b.Richmond (Whitewater): Richmond, Indiana.GISSOCRINUS Angelin. Genotype: Actinocrinus arthriticus Phillips.Gissocrinus Angelin, Icon. Crinoid., 1878, p. 10, Tp]. 3, figs. 1-3, 5b; pi. 29, fig. 75. ? Zittel, Handb. Pal., 1, 1879, p. 353.?Wachsmuth and Springer, Proc. Acad.Nat. Sci. Philadelphia, 1879, p. 312 (Rev. Pal., pt. 1, p. 89); ibid., 1886, pp.115, 151; i])id., 1889, pp. 285, 312.?Bather, Ann. Mag. Nat. Hist., 6th ser., 5,1890, p. 332, pi. 14, fig. 21; Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893,p. 152; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 175, fig. 90;Amer. Geol., 26, 1900, p. 308.?Wachsmuth, Zittel-Eastman Textb. Pal.,1, 1900, p. 156.?Zittel, Grundzuge Pal., 1, 1910, p. 154.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 220.Gissocrinus? problematicus Rowley.Gissocrinus? problematicus Rowley, Amer. Geol., 34, 1904, p. 277, pi. 16, figs.37-41.Upper Medinan (Edgewood): Three miles west of Louisiana, Missouri. 548 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Gladiolites venosus Gurley. See Retiolitesgeinitzianus venosus.GLAPHURUS Raymond. Genotype: Arionellus pustulatus Walcott.Glaphunis Raymond, Annals Carnegie Mus., 3, 1905, p. 357.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 313.?Raymond, Zittel-Eastman Textb. Pal.,1913, p. 723.Glaphurus primus Raymond. See Cybeloides primus.Glaphiirus pustiilatns (Walcott).Aj-ionellus pustulatus Walcott, 31st Ann. Rep. New York State Mus. Nat. Hist.,1879 (1880), (adv. sheets, 1877, p. 15), p. 68.Sao(?) Lamottensis Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1881, p. 334, pi. 33,figs. 9-11.?Brainerd and Seely, Bull. Amer. Mus. Nat. Hist., 3, 1890, p. 22.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 925, figs.Agraulos (Arionellus) pustulatus Vogdes, Bull. U. S. Geol. Surv., No. 63, 1890,p. 90.Glaphurus pustulatus Raymond, Ann. Carnegie Mus., 3, 1905, p. 357, pi. 14, figa.4-6, fig. 3; ibid., 7, 1910, p. 74, pi. 18, figs. 9-11; 7th Rep. Vermont State Geol.,1910, p. 234, pi. 36, figs. 4-6; pi. 38, figs. 9-11.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 313, figs. 1625, 1626.?Perkins, Rep. Vermont StateGeol., 8th ser., 1912, pi. 18, figs. 9-11.Chazyan (Crown Point, Valcour): Valcour Island, Sloop Island, Chazy, andCoopersville, New York; Isle La Motte, Vermont.GLASSIA Davidson. Genotype: Atrypa obovata SowerbyGlassia Davidson, Geol. Mag., n. s., 8, 1881, p. 11; Sup. British Dev. and Sil.Brach., Pal. Soc, 1882, p. 38.?Davidson, Mon. British Foss. Brach., 5, Sil.Suppl., Pal. Soc, 1882, pp. 86, 116.?Miller, N. A. Geol. Pal., 1889, p. 346.?Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 152, figs. 142-145; 13th Ann.Rep. New York State Geol., 1895, p. 811.?Koken, Die Leitfossilien, Leipzig,1896, p. 238.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 409.Glassia headi Miller. See Catazyga headi.Glassia romlngeri Hall and Clarke.Glassia romingeri Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 153, pi. 83,figs. 32-35; 48th Rep. New York State Mus., 2, for 1895, 1897, p. 363, pi. 8,figs. 33-36; 14th Rep. State Geol. New York for 1894, 1877, p. 363, pi. 9, figs.33-36.Trenton: Drift near Ann Arbor, Michigan.Glassia schuchertana Ulrich. See Catazya headi schuchertana.Glassia variabilis Whiteaves.Glassia variabilis Whiteaves, Geol. Sur\^ Canada, Ann. Rep., n. s., 14, App. F.1894, p. 42; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 252, pi. 26, figa,6-6b; p. 273; pi. 26, figs. 3-5; p. 277, pi. 26, figs. 7-9.Niagaran: Winisk, Ekwan, and Fawn rivers, Canada.GLAUCOCRINUS Parka and Alcock. Genotype: G. falconeri Parke and Alcock.Glaucocrinus Parks and Alcock, The Ottawa Nat., 26, 1912, p. 43.Observation.?Probably a synonym for Anomalocrinus.Glaucocrinus falconeri Parks and Alcock.Glaucocrinus falconeri Parks and Alcock, The Ottawa Nat., 26, 1912, p. 43, pi. 4,figs. 1, 4.Trenton (Curdsville): Kirkfield, Ontario, BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 549GLAUCONOME Goldfuss. Genotype: G. disticha Goldfuss.Glauconome Goldfuss, Petrefacta Germanue, 182G, p. 100.?Lonsdale, Murcliison'aSil. Syst., 1839, p. 677.?Phillips, Pal. Foss. Cornwall, Devon, and W. Somer-set, 1841, p. 21.?Etheridge, Ann. Mag. Nat. Hist., 4th ser., 20, 1877, p. 32.?McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 198.?Vine, Rep. 53d MeetingBritish Assoc. Adv. Sci., 1884, p. 204.?Shrubsole and Vine, Quart. Jour.Geol. Soc. London, 1884, 40, p. 329.?Goldfuss, Petrefacta, 2d ed., pt. 1, 1862,p. 94.?Vine, Rep. 50th Meeting British Assoc. Adv. Sci., 1880, p. 82; Geol.Mag., dec. 2, 7, 1880, p. 507; Rep. 51st Meeting British Assoc. Adv. Sci., 1882,p. 170.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 159, 160; Ziltel-EastmanTextb. Pal., 1913, p. 343.Penniretepora D'Orbigny, Prodr. de Pal., 1, 1850, p. 45.?Zittel, Handb. Pal., 1,1880, p. 603.?Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 150.Glauconome strigosa (Billings).Helopora strigosa Billings, Catal. Sil. Foss. Anticosti, 1866, p. 37.Nematopora(?) strigosa Ulrich, Amer. Geol., 1, 1888, p. 232, footnote; Geol. Surv.Illinois, 8, 1890, p. 645.Glauconome strigosa Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 161, 162, fig. 81.Species No. 1.?Wiman, Bull., Geol. Inst. Univ. Upsala, 5, pt. 2, 1902, p. 181, pi. 6,figs. 29-33.Silurian: Island of Anticosti, Canada (Charleton, Ellis Bay); Borkholm, Esthonia,Russia (Borkholm).Glossina Phillips. See Lingula subgenus Palaeoglossa Cockerell.Glossina acuminata Hall and Clarke. See Lingiilella (Lingulepis) acuminatasequens.Glossina cyane Schuchert. See Obolus cyane.GLOSSOCERAS Barrande. Genotype: G. gracile Barrande.Glossoceras Barrande, Syst. Sil. du Centre Boheme, 2, pt. 1, 1867, p. 372; Cephalo-podes: Ext. Syst. Sil. du Centre Boheme, 1877, p. 118.?Hyatt, Proc. Bos-ton Soc. Nat. Hist., 22, 1884, p. 279.?Zittel, Handb. Pal., 2, 1884, p. 373.?Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 253.?Lindstrom, Kongl.Sven. Vet.-Akad. Handl., 23, No. 12, 1890, p. 33.?Koken, Die Leitfossilien,Leipzig, 1896, p. 49, fig. 32, fig. 2.?Hyatt, Zittel-Eastman Textb. Pal., 1,1900, p. 516; ibid., 2d ed., 1913, p. 597.Glossoceras desideratum Billings.Glossoceras desideratum Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, p. 60.Anticostian (Jupiter River): Southwest Point, Anticosti.Glossograpsus Emmons. See Glossograptus Emmons.GLOSSOGRAPTUS Emmons. Genotype: G. ciliatus Emmons.Glossograpsus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 108.Glossograptus Zittel, Handb. Pal., 1, 1879, p. 302.?Miller, N. A. Geol. Pal., 1889,p. 189.?Koken, Die Leitfossilien, Leipzig, 1896, p. 329.?Roemerand Freeh,Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief. 1897. p. 631.?Files and Wood, Mon.British Grapt., Pal. Soc, 1903, p. 38.?Ruedemann, Mem. New York SlateMus., 7, 1904, p. 724; ibid., 11, pt. 2, 1908, pp. 375-379; Zittel-EastmanTextb. Pal., 2d ed., 1913, p. 130. 550 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Glossograptus arthracanthus Gurley.Diplograpsus ciliatiis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 105, pi. 1, fig. 19;Man. GeoL, 1860, p. 87, fig. 65.Glossograpsus arthracanthus Gurley, Jour. Geol., 4, 1896, p. 78.Normanskill or Early Trenton: Augusta County, Virginia.Glossograptus ciliatus Emmons.Glossograptus ciliatus Emmons, Amer. Geology, 1, pt. 2, 1856, p. 108, pi. 1, fig.25.?Lapworth, Quart. Jour. Geol. Soc. London, 31, 1875, p. 659, pi. 34, fig.7; Roy. Soc. Canada Trans., 5, 4th sec, 1887, p. 184; Canadian Geol. Surv.Rep., 2d ser., 3, pt. 1, 1889, p. 95B.?Ami, Geol. Surv. Canada Rep., 2d ser.,3, pt. 2, 1889, p. 117K.?Gurley, Geol. Surv. Ark., Ann. Rep., 3, 1892, p.404f.?Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, pp. 379-383,pi. 26, figs. 1-5; pi. 27, figs. 1-4, figs. 324-335.Diplograptus ciliatus Walcott, Alb. Inst. Trans., 10, 1881 (adv. sheets, 1879, p. 34).Glossograptus setaceus Emmons, Amer. Geology, 1, 1856, p. 236, pi. 1, fig. 20.Graptolithus spinulosus Hall, Pal. New York, 3, 1859, p. 517, fig. ; New York StateCab. Nat. Hist., 13th Ann. Rep., 1860, p. 60, fig.Glossograptus spinulosus Lajiworth, Ann. Mag. Nat. Hist., 5, 1880, p. 283.?Dodge,Amer. Jour. Sci., 3d ser., 40, 1890, p. 153.Diplograptus spinulosus Walcott, Trans. Alb. Inst., 10, 1881, p. 35; Bull. Geol.Soc, 1, 1890, p. 339.Chazyan (Normanskill): Glenmont and other localities in slate belt of New York;Alabama; Long Point, St. Anne River, Quebec; Kicking Horse Pass andDease River, British Columbia; Arkansas; Maine; North Wales.Glossograptus ciliatus debilis Ruedemann.Glossograptus ciliatus var. debilis Ruedemann, Mem. New York State Mus., 11,pt. 2, 1908, p. 384, pi. 26, figs. 6, 7.Chazyan (Normanskill): Mount Moreno, near Hudson, New York.Glossograptus ciliatus horridus Ruedemann.Glossograptus ciliatus Emmons mut. horridus Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, pp. 383, 384, pi. 26, figs. 8, 9; pi. 27, fig. 5.Canadian: Summit, Nevada.Holotype and paratype.?Cat. No. 54254, U.S.N.M.Glossograptus echinatus Ruedemann. See Glossograptus hystrix.Glossograptus? eucharis Ruedemann. See Lasiograptus (Thysanograptus)eucharis.Glossograptus hystrix Ruedemann.Glossograptus sj). Ruedemann, New York State Pal., Ann. Rep., 1902, p. 571.Glossograptus hystrix Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,pp. 724, 725, pi. 16, figs. 27-29, text fig. 101.Glossograptus echinatus Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,pp. 725-726, pi. 16, figs. 30-32, fig. 102.Canadian: Deepkill, Rensselaer Coxmty, and Moimt Moreno, near Hudson, NewYork (Deepkill, Diplograptus dentatus zone) ; Arkansas.Glossograptus (Orthograptus) quadrimucronatus (Hall).Graptolitcs dentatus Vanuxem, Geol. New York, 3d Dist., 1842, p. 57, fig. 2.?Emmons, Geology New York, 2d Diet., 1842, p. 279, fig. 2.?Hall, ibid., 4thDist., 1843, p. 29. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 551Glossograptus (Orthograptus) quadrimucronatus?Continued.Graptolitlius pristis (in part) Ilall, PaL New York, 1, 1847, p. 265, pi. 57, figs, lar-k.Diplograptus pristis Ruedemann, Amer. Jonr. Sci., 3d ser., 49, 1895, p. 453.?Wiman, Bull. Geol. Inst. LTpsala, 5, 1895, p. 69.?Tomquist, Zool. Centralbl.4, 1897, p. 4.Graptolithus quadrimucronatus Hall, Geol. Surv. Canada, Can. Org. Rem.,dec. 2, 1865, p. 144, pi. 13, figs. 1-10; New York State Cab. Nat. Hist., 20thAnn. Rep. 1868, pi. 3, figs. 1-5; rev. ed., 1870, p. 230; p. 224.?V.'hite, U. S.Geog. Surv. "West 100th Merid., "Wheeler's Rep., 4, Pal., 1877, p. 65, pi. 4,figs, la-b.?Walcott, Trans. Alb. Inst., 10 (adv. sheets, 1879, p. 35), 1881,p. 4 (loc. occ).Diplograptus quadrimucronatus Nicholson, Geol. Mag., 4, 1867, p. Ill, pi. 7, figs.1-8.?Lapworth, Geol. Mag., 6, 1877, p. 133, pi. 6, fig. 20; Belfast Nat. FieldClub, Rep. and Proc, 1, 1876, App. 1877, p. 133, pi. 6, fig. 20.?Linnarsson,Sver. Geol. Und., ser. C, No. 41, 1879, p. 18.?Lapworth, Ann. Mag. Nat.Hist., 5th ser., 5, 1880, p. 359.?Tullberg, Sver. Geol. Und., ser. C, No. 41,1880, p. 18; ibid., No. 50, 1882, p. 18.?Ruedemann, Bull. New York StateMus., 42, 1901, p. 528.Diplograptus (Orthograptus) quadrimucronatus T. S. Hall, Geol. Surv. VictoriaRec, 1, pt. 4, 1906, p. 275, pi. 34, figs. 10, 11.Orthograptus quadrimucronatus Ami, Can. Rec. Sci., 1893, 5, pp. 180, 234; Geol.Surv. Canada, Summ. Rep., 1904, 1905, p. 12.?Roemer and Freeh, Leth.geog., 1 Theil, Leth Pal., 1, 3 Lief., 1897, p. 633.Glossograptus (Orthograptus) quadrimiicronatus Ruedemann, Mem. New YorkState Mus., 2, pt. 2, 1908, pp. 385-392, fig. 336 (see pi. 26, figs. 10-15; pi. 27,figs. 6, 7).Orthograptus amii Lapworth, Can. Surv. Ann. Rep., 1887, pp. 15K, 24K.Diplograptus foliaceus (in part) Ruedemann, New York State Geol. Ann. Rep.for 1894, 1895, pi. 1, figs. 1, 5, 8, 9; pi. 2, fig. 6; pi. 3, figs. 1-26; Amer. Nat.,32, 1898, p. 6; Mem. New York State Mus., 7, 1904, p. 528, fig. 9.Diplograptus aff. whitfieldi Roemer and Freeh, Leth. Pal., 1, 1897, pi. A, figs.lb, Ic.Ti'enton: Lake St. John, Quebec, Montreal, north shore Lake Huron and Ottawa(Collingwood ) , and in belt girdling the Adirondacks; Great Britain (Hartfell) ; Scandinaxda; Australia.Plesiotype.?Cat. No. 8557, U.S.N.M.Glossograptus (Orthograptus) quadrimucronatus approximatus Ruedemann.Glossograptus quadrimucronatus var. approximatus Ruedemann, ]\iem. New YorkState Mus., 11, pt. 2, 1908, pp. 392, 393, pi. 26, figs. 10-15; pi. 27, figs. 6, 7,fig. 337.Trenton (Canajoharie): Dolgeville, Mechanicsville, etc.. New York.Glossograptus (Orthograptus) quadrimucronatus cornutus Ruedemann.Glossograptus quadrimucronatus var. cornutus Ruedemann, Mem. New YorkState Mus., 11, pt. 2, 1908, pp. 393, 394, pi. 27, figs. 8-10, figs. 338-342.Trenton (Canajoharie): Rural cemetery, Albany, New York.Glossograptus (Orthograptus) quadrimucronatus postremus Ruedemann.Glos.sograptu8 quadrimucronatus mut. postremus Ruedemann, Mem. New YorkState Mus., 11, pt. 2, 1908, p. 394, pi. 26, fig. 16, fig. 343.Trenton (Canajoharie): "Waterford, Frankfort, etc.. New York.Glossograptus setaceus Emmons. See Glossograptus ciliatus.Glos.sograptus .spinulosus Lapworth. See Glossograptus ciliatus. 552 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Glossograptus whitfieldi (Hall).Graptolithus whitfieldi Hall, Pal. New York, 3, 1859, p. 516, fig. 1; New YorkState Cab. Nat. Hist., 13tli Rep., 1860, p. 60, fig. 1; Geol. Surv. Canada, Can.Org. Rem., dec. 2, 1865, p. 31, fig. 29; p. 36, fig. 31; non pi. B, figs. 6-11;New York State Cab. Nat. Hist., 20th Rep., 1868, p. 199, fig. 31; p. 205, fig.33; pi. 1, figs. 6-11; pp. 230, 236, 224.Diplograpsns whitfieldi Nicholson, Geol. Mag., 4, 1867, 111, pi. 7, figs. 4, 4a.Diplograptiis whitfieldi Nicholson, Mon. British Grapt., 1872, p. 54, fig. 23; p. 69,fig. 30b.?Lapworth, Cat. West. Scott. Foss., 1876, pi. 2, fig. 45; Belfast FieldClub Ann. Rep. Proc, 2d ser., App., 1, pt. 4, p. 134, pi. 6, fig. 21.?Zittel,Handb. Pal., 1, 1879, p. 294, fig. 200.?Lapworth, Ann. Mag. Nat. Hist., 5thser., 6, 1880, p. 21.?Walcott, Trans. Alb. Inst., 1883, 10 (adv. sheet, 1879,p. 35).?Lapworth, Roy. Soc. Can. Proc, Trans., 4, 1886, 184.?Ami, Geol.Sur. Can. Rep., ser. 2, 3, pt. 2, 1889, p. 117K.?Geinitz, Mitth. K. Min. Geol.praeh., Mus. Dresden, 9, 1890, 35, pi. A, fig. 52.?Gurley, Geol. Surv.Arkansas, Rep., 3, 1890, p. 411.?Walcott, Geol. Soc. Am. Bull., 1, 1890,339.?James, Jour. Cincinnati Soc. Nat. Hist., 14, pt. 2, 1892, p. 158.?Freeh, Leth. Geog., 1, Theil. Leth. Pal., 1, 1897, p. 631, not fig. 192.?Ruedemann, Bull. New York State Mus., 42, 1901, pp. 497, 541.?Grabauand Shimer, N. A. Index Fossils, 1, 1906, p. 34.?Hoek, Neues Jalirb. Min.Geol. Pal., 14, 1912, p. 233, pi. 13, figs. 2, 3.Diplograptus (GraptoHthus) whitfieldi Lesley, Geol. Surv. Pennsylvania, Rep.P 4, 1889, p. 208, figs.Glossograptus whitfieldi Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,pp. 394-397, pi. 26, fig. 17, figs. 344, 345.Chazyan: Normanskill, Glenmont, Stockport, etc.. New York; Canada; Arkansas(Normanskill); Great Britain (GlenkilnV. Boli\da.GLTCERITES Hinde. Genotype: G. sulcatus Hinde.Glycerites Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 380.?Miller,N. A. Geol. Pal., 1889, p. 518.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 243.Glycerites calceolus Hinde.Glycerites calceolus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 384, pi.20, fig. 11.Upper Medinan (Cataract): Toronto, Ontario.Glycerites sulcatus Hinde.Glycerites sulcatus Hinde, Quart. Jour. Geol. Soc. London, 35, 1879, p. 380, pi.19, fig. 1.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 243, fig. 1528a.Cincinnatian (Pulaski): Toronto, Ontario.Glyceritus sulcatus excavatus Hinde.Glycerites sulcatus var. excavatus, Hinde, Quart. Jour. Geol. Soc. London, 35,1879, p. 380, pi. 19, fig. 10.Cincinnatian (Pulaski): Toronto, Ontario.Glyptaster Hall. See Dimerocrinus Phillips.Glyptaster (EucRmus) anqularis Wachsmuth and Springer. See Ptychocriuusparvus.Glyptaster armosus Wachsmuth and Springer. See Siphonocrinus armosus.Glyptaster occidentallis var. cuebescens Hall. See Dimerocrinus occidentalis. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 553Glyptoceras Foerete. See Cyrtoceras Goldfusa.Glyptocrinites Carpenter. See Glyptocrinxia Hall.GLYPTOCRINUS Hall. Genotype: G. decadactylus Hall.Glyptocrinus Hall, Pal. New York, 1, 1847, p. 281.?McCoy, British Pal. Rocks,Foss., 1854, p. 56.?Emmous, Amer. Geology, 1, pt. 2, 1855, p. 223.?Billings,Canadian Nat. Geol., 1, 1856, p. 53; Geol. Surv. Canada, Rep. Progr., 1853-1856, 1857, p. 256; Geol. Surv. Canada, dec. 4, 1859, p. 55, fig. 18.?Shumard,Trans. Acad. Sci. St. Louis, 2, 1866, p. 372.?Zittel, Handb. Pal., 1, 1879, p.374.?Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 30?Miller, Jour. CincinnatiSoc. Nat. Hist., 2, 1880, p. 246.?Wachsmuth and Springer, Proc. Acad. Nat.Sci. Pliiladelphia, 1881, p. 356 (Rev. Pal., pt. 2, p. 182); ibid., 1885, p. 324;ibid., 1887, p. 105; ibid., 1890, p. 353.?Hall, 11th Ann. Rep. Indiana Dep.Geol. Nat. Hist., 1882, p. 259.?Miller, Jour. Cincinnati Soc. Nat. Hist.,6, 1883, p. 217-219, 226.?Wachsmuth and Springer, Amer. Jour. Sci., 3d ser.,25, 1883, p. 255.?Carpenter, Phil. Trans. Royal Soc. London, 174, 1884,p. 929.?Miller, N. A. Geol. Pal., 1889, p. 247.?Dyche, Science, 20, 1892,p. 66.?James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897, pp. 110, 111.?Bather,Treatise on Zool., 1897, p. 161.?Wachsmiitli, Zittel-Eastman Textb. Pal., 1,1900, p. 147.?Zittel, Grundzuge Pal., 1, 1910, p. 162.?Cumings, 32d Ann.Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 712.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 552.?Springer, Zittel-Eastman Textb. Pal., 2d ed.,1913, p. 189.Reteocrinus (part) Wachsmuth and Springer, Amer. Jour. Sci., 25, 1883, p. 266.Canistrocrinus Wachsmuth and Springer, Proc. Acad. Nat. Sci. PhiladelpMa, 1885,pp. 310, 316 (Rev. Pal., 3, sec. 1, pp. 88, 94).?James, Jour. Cincinnati Soc.Nat. Hist., 19, 1897, pp. 104, 105.?Zittel, Grundzuge Pal., 1, 1910, p. 161.Glyptocrinites Carpenter, Phil, Trans. Royal Soc. London, 174, 1884, p. 929.Glyptocrinus angularis Miller and Dyer. See Ptychocrinus parvus.Glyptocrinus argutus Walcott. See SteUdiocrinus argutus.Glyptocrinus armosa Hall. See Siphonocrinus armosus.Glyptocrinus (Eucalyptocrinus) armosus McChesney. See Siphonocrinus ar-mosus.Glyptocrinus Baeri Meek. See Xenocrinus baeri.Glyptocrinus billingsi Miller. See Periglyptocrinus billingsi.Glyptocrinus carleyi Hall. See Mariacrinus carleyi.Glyptocrinus circumcarlnatus Parks and Alcock.Gl>T3tocrinus circumcarlnatus Parks and Alcock, The Ottawa Nat., 26, 1912, p. 45,pi. 4, figs. 2, 3.Trenton (Curdsville): Kirkfield, Ontario.Glyptocrinus cognatus Miller. See Reteocrinus nealli.Glyptocrinus decadactylus Ilall.Glyptocrinus decadactylus Hall, Pal. New York, 1, 1847, p. 281, pi. 77, figs, la-f ; pi. 78, figs, la-u.?Christy, Letters on Geol., 1848, pi. 1, fig. 10.?Yandell,Proc. Amer. Assoc. Adv. Sci., 5, 1851, p. 234.?Rogers, Geol. Pennsylvania,2, pt. 2, 1858, p. 821, fig. 622.?Hall, 12th Rep. New York State Cab. Nat.Hist., 1860, p. 69.?Hall. 24th Rep. New York State Cab. Nat. Hist., 1872, p. 554 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Glyptocrinus decadactylus?Continued.207, fig. 2.?Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 30, pi. 2, figs. 5a, b.?Zittel, Handb. Pal., 1, 1879, p. 375, fig. 262.?Hall, 11th Ann. Rep. IndianaDep. Geol. Nat. Hist., 1882, p. 260, fig. 2.?Miller, Jour. Cincinnati Soc. Nat.Hist., 6, 1883, p. 220, pi. 11, figs, la-c.?Roemer, Leth. Geog., 1 Theil, Leth.Pal., Atlas, 1883, pi. 3, fig. 19.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 254, fig.?Miller, N. A. Geol. Pal., 1889, p. 247, figs. 313-315.?Wach-smuth and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 270, pi. 20,figs. 4a-e; pi. 21, figs. 4a-b.?James, Jour. Cincinnati Soc. Nat. Hist., 19, 1897,p. 111.?Bather, Geol. Mag., dec. 4, 6, 1899, p. 32, fig. 1; Treatise on Zool.,pt. 3, Echinoderma, London, 1900, p. 119, fig. 25.?Hayes and Ulrich, U. S.Geol. Surv., folio 95, illus. sheet, 1903, fig. 16.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 720, pi. 4, fig. 9.?Grabau and Shimer.N. A. Index Fossils, 2, 1910, p. 552, figs. 1882, 1883.Heterocrinus decadactylus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 223.Apiocrinite(?) Anthony, Amer. Jour. Sci. Arts, 35, 1839, p. 360, text fig.Maysville (Fairmount): Cincinnati, Oliio, and vicinity; Indiana; Kentucky.Plesiotypes.?Gat. Nos. 35409, 40768, etc., U.S.N.M.Glyptocrinus dyeri Meek.Glyptocrinus dyeri Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, p. 314; Geol.Surv. Ohio, Pal., 1, 1873, p. 32, pi. 2, figs. 2a, b.?Miller, Jour. Cincinnati Soc.Nat. Hist., 6, 1883, p. 222.?Dyche, ibid., 15, 1892, p. 101; Science, 20, 1892,p. 66; Amer. Geol., 10, 1892, p. 130.?James, Jour. Cincinnati Soc. Nat. Hist.,19, 1897, p. 112.?Wachsmuth and Springer, Mem. Mus. Comp. Zool., Har-vard, 20, 1897, p. 271, pi. 20, figs, la-c; pi. 21, figs. 3a-c, fig. 6.?Springer,Mem. Mus. Comp. Zool., Harvard, 25, No. 2, 1905, pi. 1, fig. 13.?Cumings,32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 722, pi. 4, fig. 8.Maysville (Corryville) : Cincinnati, Ohio, and vicinity.Plesiotypes.?Cat. No. 40762, 40767, U.S.N.M.Glyptocrinus dyeri sublsevis Miller.Glyptocrinus dyeri var. subla^vis Miller, Jour. Cincinnati Soc. Nat. Hist., 1. 1878,p. 103, pi. 3, fig. 2; ibid., 1883, 7, p. 217.Maysville (Corryville): Cincinnati, Ohio, and vicinity.Glyptocrinus Dyeri var. subglobosus Meek. See Glyptocrinus subglobosus.Glyptocrinus? flmbriatus Shumard.Glyptocrinus flmbriatus Shumard, lst-2d Ann. Rep. Geol. Surv. Missouri, pt. 2,1855, p. 194, pi. A, fig. 10a, b.?Miller, Jour. Cincinnati Soc. Nat. Hist., 6,1883, p. 227.Upper Medinan (Girardeau): Cape Girardeau County, Missouri.Glyptocrinus? fornshelli Miller.Glj'ptocrinus fornshelli Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 348, fig.41; ibid., 6, 1883, p. 227; N. A. Geol., Pal., 1889, p. 248, fig. 316.?Keyes,Missouri Geol. Surv., 4, 1894, p. 162.?Wachsmuth. and Springer, Mem. Mus.Comp. Zool., Harvard, 20, 1897, p. 276, pi. .20, fig. 3; pi. 21, fig. 5.?James,Jour. Cincinnati Soc. Nat. Hist., 19, 1897, p. 114.Richmond (Waynesville) : Near Morrow, Ohio.PlesioUjpe.?Cat. No. 40771, U.S.N.M.Glyptocrinus harrisi Miller. See Compsocrinus harrisi. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 555Glyptocrinus Insperatiis Rowley.Glyptocrinus insperatus Rowley, Amer. Geol., 34, 1904, p. 275, pi. 16, figs. 34,42, 43.Upper Medinan (Edgewood): Near Edgewood, Pike County, Missouri.Glyptocrinus insperatus carinatus Rowley.Glyptocrinus insperatus? var. carinatus Rowley, Amer. Geol., 34, 1904, p. 278,pi. 16, fig. 56.Upper Medinan (Edgewood) : Near Edgewood, Pike County, Missouri . Glyptocrinus insperatus pentagonus Rowley.Glyptocrinus insperatus var. pentagonus Rowley, Amer. Geol., 34, 1904, p. 276,pi. 16, figs. 35, 36.Upper Medinan (Edgewood): Near Edgewood, Pike County, Missouri.Glyptocrinus lacunosus Billings. See ArchaK)crinu8 lacunosus.Glj'ptocrinus libanus Safford.Glyptocrinus Libanus Safford, Geol. Tennessee, 1869, p. 286 (nom. nud.).Stones River: Lebanon, Tennessee.Glyptocrinus marginatus Billings. See Archseocrinus marginatus.Glyptocrinus mercerensis Miller and Gurley.Glyptocrinus mercerensis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist.,5, 1894, p. 28, pi. 2, fig. 23.Trenton (Curdsville) : Mercer County, Kentucky.Glyptocrinus miamiensis Miller. See Compsocrinus miamiensis.Glyptocrinus nealli Hall. See Reteocrinus nealli.Glyptocrinus nobilis Hall. See Siphonocrinus nobilis.Glyptocrinus ornatus Billings.Glyptocrinus ornatus Billings, Geol. Surv. Canada, Rep. Progress for 1853-56, 1857,p. 260; Geol. Surv. Canada, dec. 4, 1859, p. 60, pi. 9, fig. 2a,b.?Miller,Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 225.?Wachsmuth and Springer,Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 274, pi. 20, fig. 6a, b.?Springer,Geol. Surv. Canada, Mem. 15P, 1911, p. 11 (loc. occ).Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Glyptocrinus parvus Hall. See Ptychocrinus parvus.Glyptocrinus? pattersonl Miller.Glji^tocrinus pattersoni Miller, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 80,pi. 3, fig. 2, 2a; ibid., 6, 1883, p. 226.Reteocrinus Pattersoni Wachsmuth and Springer, Amer. Jour. Sci. Arts, 25, 1883,p. 266.Canistrocrinus Pattersoni Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1885, p. 317 (Rev. Pal., pt. 3, sec. 1, p. 95.).?James, Jour. Cincin-nati Soc. Nat. Hist., 19, 1897, p. 105.Eden (Economy): Ohio River bank opposite Cincinnati, Ohio.Glyptocrinus plumosiis (Hall).Actinocrinus? plumosus Hall, Nat. Hist. New York Geol., 4, ]vS43, p. 72.?Owen,Amer. Jour. Sci. Arts, 48, 1845, p. 303, fig. 5. 556 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Glyptocrinus plumosus?Continued.Glyptocrinus plumosus Hall, Pal. New York, 2, 1852, p. 180, pi. 41A, figs. 3a-g. ? Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 157, fig. 52; Bull. New YorkState Mus., 45, p. 157, fig. 52.Lower Clinton: Near Medina, Reynale's Basin, and Lockport, New York.Glyptocrinus priscus Billings. See Periglyptocrinus priscus.Glyptocrinus quinquepartitus Billings.Glyptocrinus quinquepartitus Billings, Geol. Surv. Canada, dec. 4, 1859, pi. 8,fig. 4a, 4b.?Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 217.Trenton: Ottawa, Ontario.Glyptocrinus ramulosus Billings.Glyptocrinus ramulosus Billings, Canadian Nat. Geol., 1, 1857, p. 49, fig. 1; p. 54,fig. 3; p. 55, fig. 4-8; Canadian Jour., n. s., 1, 1856, p. 165; Geol. Surv.Canada, Rep. Progr. for 1853-1856, p. 258; Geol. Surv. Canada, dec. 4, p. 57,pi. 7, figs. 2a-f; pi. 8, figs. la-e.?-Miller, Jour. Cincinnati Soc. Nat. Hist., 6,1883, p. 224.?Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard,20, 1897, p. 273, pi. 20, fig. 5a-b.?Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 552.?Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 11(loc. occ).Arcbseocrinus? ramulosus Wachsmuth and Springer, Amer. Jour. Sci., 3d ser., 25,1883, p. 265.Trenton (Curdsville) : Ottawa and Kirkfield, Ontario; Mercer County, Kentucky.Glyptocrinus? richardsoni Wetherby.Glyptocrinus richardsoni Wetherby, Jour. Cincinnati Soc. Nat. Hist., 2, 1880,p. 245, pi. 16, fig. 1, la.?Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883,p. 227.Eeteocrinus Richardsoni Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1881, p. 367 (Rev. Pal., pt. 2, p. 193).Canistrocrinus Richardsoni Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1885, p. 317 (Rev. Pal., pt. 3, sec. 1, p. 95).?James, Jour. CincinnatiSoc. Nat. Hist., 19, 1897, p. 106.Richmond: Wilmington, Ohio.Glyptocrinus sculptus James. See Rhaphanocrinus sculptus.Glyptocrinus Shafperi Miller. See Pycnocrinus shafferi.Glyptocrinus shafferi var. germanus Miller. See Pycnocrinus germanus.Glyptocrinus siphonatus Hall. See Siphonocrinus armosus.Glyptocrinus subglobosus (Meek).Glyptocrinus Dyeri var. subglobosus Meek, Proc. Acad. Nat. Sci. Philadelphia,1872, p. 316; Geol. Surv. Ohio, Pal., 1, 1873, p. 34, pi. 2, fig. 2c.Glyptocrinus subglobosus Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 7.?Miller,Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 223.?James, Jour. CincinnatiSoc. Nat. Hist., 19, 1897, p. 114.Reteocrinus subglobosus Wachsmuth and Springer, Amer. Jour. Sci., 3d ser., 25,1883, p. 265.Maysville (Corryville) : Cincinnati, Ohio, and vicinity.Glyptocrinus? subnodosus Walcott. See Rhaphanocrinus subnodosus.Glyptocrinus typus Miller. See Tanaocrinus typus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 557Glyptocystis Angelin. See Cheirocrinus Eichwald.Glyptocystis Bather (part). See Glyptocystites Billings.Glyptocystis logani Springer. See Cheirocrinus logani.Glyptocystis multiporus Bather. See Glyptocystites multiporus.GLYPTOCYSTITES Billings. Genotype: G. multiporus Billings.Glyptocystites (part) Billings, Canadian Jour., 2, 1854, p. 215; Geol. Surv. Canada,Rep. Progr. for 1853-1856, 1857, p. 280.?Chapman, Canadian Jour., n. s., 2,1857, p. 303.?Billings, Geol. Surv. Canada, dec. 3, 1858, p. 53.?Hall, Pal.New York, 3, 1859, p. 151.?Chapman, Expos. Min. Geol. Canada, 1864,p. 109.?Miller, N. A., Geol. Pal., 1889, p. 248.?Jaekel, Stammes. Pelmat.1, Thecoidea u. Cystoidea, Berlin, 1899, p. 275.?Grabau and Shimer (part),N. A. Index Fossils, 2, 1910, p. 463.Glyptocystis Bather (part), Treatise on Zool., pt. 3, Echiuoderma, London, 1900,p. 64, fig. 33; Trans. Roy. Soc. Edinburgh, 49, pt. 2, 1913, p. 430.Glyptocystites Billings (part). See Cheirocrinus Eichwald.Glyptocystites gracilis Shumard. See Cheirocrinus logani gracilis.Glyptocystites multiporus Billings.Glyptocystites multipora Billings, Canadian Jour., 2, 1854, p. 216, figs. 1-8; Geol.Surv. Canada, Rep. Progr. for 1853-1856, 1857, p. 281; ibid., dec. 3, 1858, p.54, pi. 3, fig. la, Ic.?Chapman, Expos. Min. Geol. Canada, 1864, p. 109. ? Miller, N. A. Geol. Pal., 1889, p. 249, fig. 317.?Jaekel, Stammes. d. Pelmat.,1, Thecoidea u. Cystoidea, Berlin, 1899, p. 275, fig. 57, p. 277, pi. 15, fig. 4.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 463, fig. 1770.Callocystis multipora Haeckel, Amphor. u. Cystoideen, 1896, p. 132, pi. 3, figs.18-20.Glyptocystis multiporus Bather, Treatise on Zool., pt. 3, Echiuoderma, 1900, p.64, fig. 33.?Springer, Mem. Geol. Surv. Canada, 15 P, 1911, p. 45 (loc.occ.).?Bather, Trans. Roy. Soc. Edinburgh, 49, pt. 2, 1913, p. 430, fig.Trenton (Curdsville): Ottawa and Kirkfield, Ontario.Glyptodendron Claypole. See Cyrtoceras Goldfuss.Glyptograptus Lapworth. See Diplograptus McCoy.Glyptorthis Foerste. See Hebertella subgenus Glyptorthis.GNORIMOCRINUS Wachsmuth and Springer.Genotype: Taxocrinus expansus Angelin,Gnorimocrinus Wachsmuth and Springer, Proc. Nat. Acad. Philadelphia, Rev.Pal., 1, 1879, p. 50.?Bather, Rep. British Assoc. Adv. Sci., 1899, p. 922;Lankester's Treatise on Zool., 3, 1900, p. 189.?Wachsmuth, Zittel-EastmanTextb. Pal., 1, 1900, p. 163.?Springer, Jour. Geol., 14, 1906, p. 515; Mono.Crin. Flex., Smiths. Inst, (in press); Zittel-Eastman Textb. Pal., 2d cd., 1913,p. 205.Gnorimocrinus cirrlfer Springer.Gnorimocrinus cirrifer Springer, Mono. Crin. Flex., Smiths. Inst, (in press).Niagaran (Brownsport) : Decaturville, Tennessee.Gnorimocrinus varlans Springer.Gnorimocrinus varians Springer, Mono. Crin. Flex., Smiths. Inst, (in press).Niagaran (Brownsport): Decatur County, Tennessee. 558 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.GOLDIUS Dekouinck. Genotype: Brontes flabellifer Goldfuss.Brontes Goldfiisa (not Fabricius), Beit. Petrefact., Nova Acta Physico-Med., 19,1839, p. 360.?Portlock, Rep. Geol.' Londonderry, 1843, p. 268.Goldiua Dekoninck, Mem. Acad. Sci. Bruxelles, 14, 1841, p. 5.?Oehlert, Bull.Soc. d'Etudes Sci. d'Angers, 1885, p. 1.?Baymond, Zittel-Eastman Textb.Pal., 1913, p. 720.Bronteus Goldfuss, Neues Jahrb. f. Min., etc., 1843, pp. 540, 548.?Burmeister,Org. derTril., Berlin, 1843, p. 75.?Emmrich, Neues Jahrb. f. Min., etc., 1845,p. 42.?Beyrich, Ueber einige bohmische Trilobiten, 1845, p. 33.?Hawle andCorda, Abb. d. k. bohmischen Gesell. d. Wiss., 5 (extract), 1847, p. 56, pi. 4,figs. 33, 34.?Barrande, Neues Jahrb. f. Min., etc., 1850, p. 777; Syst. Sil. duCentre Boheme, 1, 1852, p. 829.?McCoy, British Pal. Rocks Fossils, 1854,p. 179.?Pictet, Traite de Pal., 2d ed., 2, 1854, p. 524.?Nieszkowski, Archiv.f. Naturk. Liv-, Ehst-u. KiuL, ], 1857, p. 586.?Angelin, Pal. Scandinavica,3d ed., Holmiae, 1878, p. 56.?Kayser, Zeits. d. d. geol. Gesell., 31, 1879, p.413.?Zittel, Handb. Pal., 2, 1885, p. 613.?Hall and Clarke, Pal. New York,7, 1888, p. 25, text fig. p. 26.?Miller, N. A. Geol. Pal., 1889, p. 535.?WTiid-borne, Mon. Dev. Fauna South England, 1, Pal. Soc, 1889, p. 32.?Clarke,Geol. Minnesota, 3, pt. 2, 1894, p. 726.?Koken, Die LeitfossiUen, Leipzig,1896, p. 28, fig. 18.?Beecher, Amer. Jour. Sci., 4th ser., 3, 1897, p. 104, pi. 3,fig. 21.?Clarke, 15th Ann. Rep. New York State Geol., 1898, p. 736.-Grabau,BiUl. New York State Mus., 45, 1901, p. 226; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 226.?Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, 1901, pp. 26,43.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 306.?Raymond,Zittel-Eastman Textb. Pal., 1913, p. 720.Goldius acamas (Hall).Bronteus acamas Hall, Adv. Sheets, 18th Rep. New York State Cab. Nat. Hist.,1865, p. 28; 20th Rep. New York State Cab. Nat. Hist., 1867, p. 322, pi. 21,figs. 19-20, p. 393; rev. ed., 1870, p. 422, pi. 21, figs. 19-20, pi. 25, fig. 21.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 1907, p. 232,pi. 20, fig. 1.?Grabau and Shimer, N. A. Index Fossils. 2, 1910, p. 306.Niagaran (Racine): Racine, Wisconsin; Bridgeport and Romeo, Illinois.Goldlus aqiiilonaris (Whiteaves).Bronteus aquilonaris Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App.F, 1904, p. 58; Geol. Surv. Canada, Pal. Fose., 3, pt. 4, 1906, p. 267, pi. 42,fig. 2.Niagaran: Ekwan River, Canada.Goldius ekwanensis (^liiteaves).Bronteus Ekwanensis "WTiiteaves, Geol. Siu^. Canada, Ann. Rep., n. s., 14, App.F, 1904, p. 58; Geol. Slu^^ Canada, Pal. Foss., 3, pt. 4, 1906, p. 266, pi. 42,fig.l.Niagaran: EkAvan River, Canada.Goldius flabellifer (Goldfuss).Brontes flabellifer Goldfuss, Nova Acta Acad. Caes. Leop. Nat.-Ciu-., 19, pt. 1,1839, p. 361, pi. 33, fig. 3.Bronteus flabellifer Philips, Pal. Foss. Dev. and Comw., 1841, p. 131, pi. 57, fig.254.?Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 590.Niagaran: Bessels Bay, Arctic America.Goldius insularis (Billings).Bronteus insularis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 66.Anticostian (Chicotte): SoutJiwest Point, Anticosti. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 559Goldlus laphaml (WTiitfield).Brontcus laphami AMiitfield, Ann. Rep. Wisconsin Gool. Surv. for 1877, 1878, p.88; Geol. Surv. Wisconsin, 4, 1882, p. 310, pi. 22, ligs. 1-4.?Chamberlin,Geol. Wisconsin, 1, 1883, p. 195, fig.Niagaran (Racine): Kewaunee, Wisconsin.Goldiiis lunatus (Billings).Bronteus lunatus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 1857,p. 338; Geol. Canada, Geol. Surv. Canada, 1863, p. 188, fig. 187.?Miller,N. A. Geol. Pal., 1889, p. 535, fig. 980.?Clarke, Geol. Minnesota, 3, pt. 2, 1S94,p. 725, fig. 43.?Whiteaves, Pal. Foss., Geol. Sui-v. Canada, 3, pt. 3, 1897,p. 235.?Ruedemann, Bull. New York State Mus., 49, p. 65, pi. 4, figs. 10,11.?Weller, Geol. Siu-v. New Jersey, Pal., 3, 1903, p. 198, pi. 15, figs. 14-16.?Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 306, fig. 1017.Trenton: Ottawa, Canada; Wykoff, Minnesota; Lake Winnipeg; Jacksonburg,New Jersey.Goldlus niagarensis (Hall).Bronteus? niagarensis Hall, Pal. New York, 2, 1852, p. 314, pi. 70, fig. 3.?Grabau,Bull. New York State Mus., 45, 1901, p. 226, fig. 158.Clinton (Irondequoit?Rochester): Niagara Falls, Ontario.Goldlus occasus (Winchell and Marcy).Bronteus occasus Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p.104, pi. 3, fig. 12.Niagaran (Racine): Bridgeport, Illinois.GOMPHOCERAS Sowerby. Genotype: Orthoceras pyriforme Sowerby.Gomphoceras Sowerby in Murchison's Sil. Syst., 1839, p. 621.?Portlock, Rep,Geol. Londonderry, 1843, p. 381.?D'Orbigny, Prodr. de Pal., 1, 1849, pp.3, 27.?Woodward, Man. Mollusca, pt. 1, 1851, p. 89, fig. 51 on p. 90.?Bar-rande, Neues Jahrb. f. Min., etc., 1854, p. 10, pi. 1, fig. 9a.?Pictet, Traite dePal., 2d ed., 2, 1854, p. 644.?Emmons, Amer. Geology, 1, pt. 2, 1855, pp.148, 151.?Barrande, Neues Jahrb. f. Min., etc., 1855, p. 258, pi. 3, fig. 14;Bull. Soc. Geol. France, 2d ser., 12, 1855, p. 158.?Billings, Canadian Nat.Geol., 2, 1857, p. 136, pi. 2, fig. 1.?Barrande, Neues Jahrb. f. Min., etc., 1860,p. 653; Syst. Sil. du Centre Boheme, 2, pt. 1, 1867, p. 243.?Hall, Pal. New-York, 5, pt. 2, 1879, p. 318.?Koninck, Ann. d. Mus. Royal d'Hist. Nat. deBelgique, 5, 1880, p. 40.?Blake, Mon. British Foss. Cephalopoda, 1882, p.58.?Zittel, Ilandb. Pal., 2, 1884, p. 370.?Hyatt, Proc. Boston, Soc. Nat.Hist., 22, 1884, p. 277.?Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p.470.?Miller, N. A. Geol. Pal., 1889, p. 437.?Whidborne, Mon. Dev. FaunaSouth England, 1, Pal. Soc, 1890, p. 117.?Foord, Cat. Foss. Ceph. BritishMus., 1, 1888, p. 211.?Koken, Die Leitfossilien, Leipzig, 1896, p. 47, text fig.31.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 291.?Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 532; ibid., 2d ed., 1913, p. 612.?Grabau,Bull. New York State Mus., 45, 1901, p. 216; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 216.-Jaekel, Zeits. d. d. geol. Gesell., 44, 1902, Protok., pp. 8, 68,80.?Jaekel in Ruedemann, Amer. Geol., 31, 1903, p. 200.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1026.Gomphoceras angustum Newell. See Phragmoceras angustum.GoMPHocEKAs CASsiNENSE WMtfi.eld. See Cyclostomiceras cassinense. 560 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Gomphoceras cincinnatiense Miller.Gomphoceras cincinnatiense Miller, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p.19, pi. 4, figs. 1, la.Maysville (Corryville): Cincinnati, Ohio.Gomphoceras conoideum WTiitfield and Hovey. See Discosorus conoideua.Gomphoceras eos Hall and Whitfield.Gomphoceras eos Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 100, pi. 3,fig. 5.?James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 244.Bichmond: Near Dayton, Ohio.Gomphoceras faberi Miller.Gomphoceras faberi Miller, Jour. Cincinnati Soc. Nat. Hist., 7, 1884, p. 19, pi. 4,figs. 2, 2a.?James, J. F., ibid., 8, 1886, p. 244.Maysville (Conyville): Cincinnati, Ohio.Gomphoceras halli D'Orbigny. See Orthoceras fusiforme.Gomphoceras hertzeri Miller. See Hexameroceraa hertzeri.Gomphoceras Indianense Miller and Faber.Gomphoceras indianense Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17,1894, p. 137, pi. 7, figs. 3-5.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 1030, pi. 49, figs. 4-4b.Richmond: Near Versailles, and Madison, Indiana,Gomphoceras lineare Newell.Gomphoceras linearis Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, pp. 473,474, fig.Niagaran: Bridges quarry, Wabash, Indiana.Gomphoceras MARCViB Winchell and Marcy. See Gomphoceras scrinium.Gomphoceras minimum Whitfield. See Cyclostomiceras minimum.Gomphoceras mirum Barrande. See Pentameroceras mirum.Gomphoceras nestor Foord. See Phragmoceras nestor.Gomphoceras obesum Billings. See Poterioceras obesum.Gomphoceras ortoni Foerste.Gomphoceras Ortoni Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 533, pi. 33, figs.8a, b; pi. 36, figs. 7a-c.Upper Medinan (Brassfield): Browns quaiTy, near Dayton, Ohio.Gomphoceras parvulum ^Miiteaves.Gomphoceras parvulum Whiteaves, Canadian Rec. Sci., 4, 1891, p. 298, pi. 3,figs. 5, 5a, b; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 296, pi. 35,figs. 2, 2a, 2b.Niagaran: Grand Rapids of Saskatchewan, Canada.Gomphoceras powers! J. F. James.Gomphoceras powersi James, J. F., Jour. Cincinnati Soc. Nat. Hist., 8, 1886, p. 255,pi. 4, fig. 2.?Ulrich, Amer. Geol., 1, 1898, p. 325.Black River (Platteville): Beloit, Wisconsin.Gomphoceras projectum Newell.Gomphoceras projectum Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, pp. 476,477, figs.Niagaran: Delphi, Indiana. BIBLIOGRAPHIC LIST OF GENEEA AKD SPECIES. 5G1Gomphoceras scrinium Ilall.Gomphoceras scrinitim Hall, 20t]i Rep. New York State Cab. Nat. Hist, (extras,1865), 18G8, p. 350, pi. 18(9), figs. 1-5; pp. 389, 393; rev. ed., 18G8, 1870, p.410, pi. 18, figs. 1-3.?Foord Cat. Foss. Ceph. British Mus., 1, 1888, p. 224.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 194, fig.Gomphoceras Marcyae Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1,18G5, p. 101, pi. 3, fig. 8; p. 109; p. 112.Niagaran (Racine): Cliicago, Illinois.Gomphoceras septoris Hall. See Septameroceras sejitore.Gomphoceras subgracile BilUngg.Gomphoceras subgracile Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56,1857, p. 311.Silurian: Port Daniel, Gaspe, Canada.Observation.?Possibly a species of Septameroceras.Gomphoceras wabashense Newell.Gomphoceras wabashensia Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p.470-472, figs.?Kindle and Breger, 2Sth Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1904, p. 476, pi. 20, figs. 3, 4.Niagaran: Delphi and Georgetown, Indiana.Plesiotype.?Cat. No. 52947, U.S.N.M.GoMPHocYSTis AngeHn. See Gomphocystites Hall.GOMPIIOCYSTITES Hall. Genotype: G. glans Hall.Gomphocystites Hall, 20th Rep. New York State Cab. Nat. Hist, (extras, 18G4),1868, p. 309; rev. ed., 1870, p. 351.?Zittel, Handb. Pal., 1, 1879, p. 415.?Miller, N. A. Geol. Pal., 1889, p. 249.?Jaekel, Stammes. Pelmat., 1, The-coideaii. Cystoidea, Berlin, 1899, p. 419.?Zittel, Grundzuge Pal., 1910, p.189.?Grabaii and Sliimer, N. A. Index Fossils, 2, 1910, p. 461.?Springer,Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 156.Gomphocystis Angelin, Icon. Crinoid, 1878, p. 31.?Haeckel, Amphorideen' u.Cystoideen, Leipzig, 1896, p. 115.?Bather, Treatise on Zool., pt. 3, Echino-derma, London, 1900, p. 77.Gomphocystites clavus Hall.Gomphocystites claviis Hall, 20tli Rep. New York State Cab. Nat. Hist, (extras,1864), 1868, p. 310, pi. 12a (1), fig. 3; rev. ed., 1870, p. 353, pi. 12a, fig. 3.Niagaran (Racine): Racine, Wisconsin.Gomphocystites glans Hall.Gomphocystites glans Hall, 20th Rep. New York State Cab. Nat. Hist, (extras,Dec. 1864), 1868, p. 310, pi. 12(3), fig. 14; pi. 12a(l), figs. 4, 5; rev. ed. 1870,p. 352, pi. 12, fig. 14; pi. 12a, figs. 4, 5.?Roemer, Leth. goog., 1, Leth. Pal.,Atlas, 187G, pi. 11, fig. 2a.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig.?Jaekel, Stammes. Pelmat., 1, Thecoidea n. Cystoidea, Berlin, 1899, p. 421,pi. 2, figs. 8, 9.?Grabau and Sliimer, N. A. Index Fossils, 2, 1910, p. 462, fig.1768.Niagaran (Racine): Racine, Wisconsiu.Gomphocystites Indianensis Miller.Gomphocystites indianensis Miller, N. A. Geol. Pal., 1889, p. 249, fig. 319. ? Jaekel, Stammes. Pelmat., 1, Thecoideau. Cystoidea, Berlin, 1899, p. 421.Niagaran (Osgood): Jefferson County, Indiana.84243??Bull. 9:i?15 36 562 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Gomphocystites tenax Hall.Gomphocystites tenax Hall, 20th Kep. New York State Cab. Nat. Hist, (extras,1864), 1868, p. 310, pi. 12(3), fig. 15; pi. 12a(l), figs. 1, 2; rev. ed., 1870, p. 352,pi. 12, fig. 15; pi. 12a, figs. 1, 2.?Roemer, Leth. geog., 1, Leth. Pal., Atlas,1876, pi. 11, fig. 3.?Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896,p. 115, pi. 3, fig. 37.?Jaekel, Stammes. Pelmat., 1, Tliecoideau. Cystoidea,Berlin, 1899, p. 421. Bather, Treatise on Zool., pt. 3, EchinodeiTQa, London,1900, p. 77, fig. 48.Niagaran (Lockport): Lockport, New York.GoNAMBONiTES PLANA var. RETROFLEXA Vemeuil. See Clitambonitos planus ret-roflexus.Goniatites canadensis Castelnau. Not recognized.Goniatites canadensis Castelnau, Syst. Sil., 1843, p. 34, pi. 11, fig. 7.Ordovician?: Falls of Montmorency River, near Quebec, Canada.Observation.?Probably the same as Sinuites cancellatus.GONIOCERAS Hall. Genotype: G. anceps Hall.Gonioceras Hall, Pal. New York, 1, 1847, p. 54.?D'Orbigny, Prodr. de Pal., 1,1849, p. 2.?Pictet, Traite de Pal., 2d ed., 2, 1854, p. 638.?Emmons, Amer.Geology, 1, pt. 2, 1855, p. 148.?Barrande, Syst. Sil. du Centre Boheme, 2, pt.3, 1874, p. 678; p. 786.?Hyatt, Science, 3, 1884, p. 124.?Zittel, Ilandb. Pal.,2, 1884, p. 370?Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 288.?Miller, N. A. Geol. Pal., 1889, p. 441.?Clarke, Geol. Minnesota, 3, pt. 2,1897, p. 794.?Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 322.?Ruedc-mann, Bull. New York State Mus., 90, 1906, p. 492.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 117.Gonioceras anceps Hall.Gonioceras anceps Hall, Pal. New York, 1, 1847, p. 54, pi. 14, figs. la-d.?Chap-man, Canadian Jour., n. s., 8, 1863, p. 20, fig. 130.?Roemer, Leth. geog., 1,Leth. pal.. Atlas, 1876, pi. 6, fig. 5a.?Miller, N. A. Geol. Pal., 1889, p. 441,fig. 742.?Keyes, Missouri Geol. Surv., 5, 1894, p. 220.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 117, fig. 1353.?Clarke, Geol. Minnesota, 3,pt. 2, 1897, p. 794, pi. 47, fig. 5.?Foord, Cat. Foss. Ceph. British Mus., 1,1888, p. 324, fig. 49.Orthoceras anceps Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 150, fig.108a, b.?Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 541, figs.Ormoceras anceps Chapman, Canadian Jour., n. s., 8, 1863, p. 198, fig. 172; Expos.Min., Geol. Canada, 1864, p. 128, fig. 130; p. 170, fig. 172.Gonioceras hallii Emmons, Amer. Geology', 1, pt. 2, 1855, p. 152, fig. 31; Man.Geol., 1860, p. 96, fig. 85.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 258, fig.Black River: Watertown, etc., New York (Watertown); Ontario; Wisconsin;Minnesota; Kentucky; Tennessee.Gonioceras chaziense Ruedemann.Gonioceras chaziense Ruedemann, Bull. New York State Mus., 90, 1906, p. 494,pi. 36, figs. 3, 4.Chazyan (Crown Point): Near Chazy, New York.Gonioceras hallii Emmons. See Gonioceraa anceps.Gonioceras lambi Whiteaves. See Tripteroceras Iambi. BIBLIOOriAPHIC LIST OF GENERA AND SPECIES. 563Gonloceras occideiitale Hall.Gonioceras occidentalis Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 47. ? Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 74, pi. 12, figa.1, 2.?Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 795, pi. 47, fig. 6.?Grabauand Shimcr, N. A. Index Fossils, 2, 1910, p. 117, fig. 1354.?Holtedahl,Vidensk. Skrifter, 1, 1912, p. 9, pi. 3, fig. 1.Black River (Platteville): Wisconsin; Dixon, Illinois; Arctic America.Plcsiotype.?Cat. No. 46527, U.S.N.M.GONIOGRAPTUS McCoy.Genotype: Didymograptus (Goniograptus) thureaui McCoy.Goniograptus McCoy, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 128.?Wiman,Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, p. 265.?Ruedemann, Mem. New YorkState Mus., 7, pt. 1, 1904, pp. 620, 621.Goniograptus geometricus Ruedemann.Gonigraptus n. sp. Ruedemann, New York State Pal., Ann. Rep., 1902, p. 566.Goniograptus geometricus Ruedemann, Mem. New York State Mus., 7, pt. 1,1904, pp. 627-630, pi. 7, figs. 5, 10-20, figs. 43-45.Canadian (Deepkill, Didymograptus trifidus zone): Deepkill, Rensselaer County,New York.Observation.?Compare Thamnograptus anna.Goniograptus perilexilis Ruedemann.Goniograptus n. sp. Ruedemann New York State Pal., Ann. Rep., 1902, p. 556.Goniograptus perflexilis Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904,pp. 625-627, pi. 6, figs. 16-18; pi. 7, figs. 1-4, 6-9, figs. 39-42.Canadian: Deepkill and Mount Moreno, New York (Deepkill, Tetragraptus andDidymograptus zones); Point Levis, Quebec (Levis, Didymograptus andDiplograptus dentatus zones).Goniograptus thureaui (McCoy).Didymograptus (Goniograptus) thureaui McCoy, Ann. Mag. Nat. Hist., 4th ser.,18, 1876, pp. 128-130.Graptolites (Didymograptus) thureaui McCoy, Geol. Surv. Victoria, Prodr. Pal.,Victoria, dec. 5, 1877, p. 39.Goniograptus thureaui Ami, Geol. Surv. Canada, Rep., 2d ser., 3, pt. 2, 1889, p.116k.?Ruedemann, Bull. New York State Mus., Pal. Ann. Rep., 1902, pp.556, 565, 576-92, figs. 1-11; ibid., Mem. 7, pt. 1, 1904, pp. 621-624, pi. 6,figs. 1-15, figs. 37, 38.Dichograptus (Clonograptus, Goniograptus) thureaui Freeh, Leth. Pal., 1, Lief.3, 1897, p. 600, fig. 165.Dichograptus (Goniograptus) thureaui Grabau and Sliimer, N. A. Index Fossils1, 1906, p. 29, fig. 41d, 42.Goniograptus thureau var. selwyni Ami, Can. Rec. Set., 3, 1889, p. 422-428, p.502, 503, figs. 1, 2.Goniograptus thureaui var. postremus Ruedemann, Bull. New York State Mus.,52, 1902, p. 587, fig. 14.Lower Ordovician: Sandhurst, Victoria; Point Levis, Quebec (Levis, Clono-graptus zone); Deepkill, Rensselaer County, New York (Deepkill, Tetra-graptus and D. bifidua zones).Goniograptus thureaui var. postremus Ruedemann. See Goniograptus thureaui.Goniograptus thureaui var. selwyni Ami. See Goniograptus thureaui. 564 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.GONIOPHORA PMllips. Genotype: G. cymbiformia Soworby.Goniophora Hall, Pal. New York, 5, pt. 1, Lam., 2, 1885, p. 13.?Nettelroth,Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 213.?Miller, N. A.Geol. Pal., 1889, p. 481.?Whidborne, Mon. Dev. Fauna South England, 2,Pal. Soc, 1892, p. 16,?Koken, Die Leitfossilien, Leipzig, 1896, p. 525.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 251.?Hind, ]\Ion. BritishCarb. Lamell., 1, Pal. Soc, 1899, p. 339.?Grabau and Shimer, N. A. IndexFossils, 1, 1909, p. 518.Goniophora bellula Billings.Goniophora bellula Billings, Pal. Foss. Geol. Surv. Canada, 2, pt. 1, 1874, p. 136,pl. 8, fig. 9.Silurian: Arisaig, Nova Scotia.Goniophora carinata (Hall).Modiolopsis carinatus Hall, Pal. New York, 1, 1847, p. 160, pl. 35, figs, lla-c. ? Billings, Geol. C?,nada, Geol. Surv. Canada, 1863, p. 173, fig. 159.?Lesley,Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 407, fig.Goniophora carinata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 504 (gen. ref.).Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 173, pi. 11, fig. 23.Cypricardia americana D'Orbigny, Prodr. Pal., 1, 1850, p. 121.?Emmons, Amer.Geol., 1, pt. 2, 1855, p. 174, pl. 14, fig. 11.Trenton: Middleville, etc.. New York; New Jersey; etc.Goniophora consimilis Billings.Goniophora consimilis Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p.135, pl. 8, fig. 8.Silurian: Arisaig, Nova Scotia.Goniophora crassa ^Vlliteave^.Goniophora crassa 'Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 9,pl. 2, figs. 3, 3a-c; ibid., pt. 2, 1895, p. 67 (loc. occ).Niagaran (Gueljih): Durham, Ontario.Goniophora dubia (Hall).Modiolopsis? dubius Hall, Pal. New York, 3, 1859, p. 264, pl. 49, figs. 2a-e.Goniophora dubia ^Miitfield, Ann. New York Acad. Sci., 5, 1891, p. 514, pl. 5,figs. 24-26; Geol. Surv. Ohio, Pal., 7, 1893, p. 415, pl. 1, figs. 24-26.?Sherzer,Michigan Geol. Surv., 7, pt. 1, 1900, p. 224, pl. 17, figs. 24-26.?Grabau andShimer, N. A. Index Fossils, 1, 1909, p. 519, fig. 697.?Grabau, MichiganGeol. Surv., Geol. Ser., 1, 1909, p. 108, pl. 30, figs. 24-26.Cayugan (Manlius): Winfield, Herkimer County, New York.Lower Monroan: Monroe County, Michigan; Put-in-Bay, Lake Erie.Goniophora mediocris Billings.Goniophora mediocris Billings, Pal. Fass.,Geol. Surv. Canada, 2, pt. 1, 1874, p.137, pl. 9, fig. 1.Silurian: Arisaig, Nova Scotia.Goniophora speciosa Hall.Goniophora speciosa Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882,p. 317, pl. 27, figs. 26, 27; Trans. Albany Inst., 10, 1883, p. 73.Niagaran (Waldron): Waldron, Indiana.Goniophora transiens Billings.Goniophora transiens Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p.134, pl. 8, fig. 7.Silurian (Stonehouse): Arisaig, Nova Scotia. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 565GONIOPHYLLUM Edwards and Haimo.Genotype: Turbinolia pyramidalis Hisinger.Goniophyllum Edwards and Ilaime, Mon. d. Polyp. Foss. d. Terr. Pal., 1851(Arch. Mus. Hist. Nat., 5 ), pp. 169, 404.?Pictet, Traite de Pal., 2d ed.,4, 1857, p. 456.?Milne-Edwards, Hist. Nat. d. CoralL, 3, 1860, p. 397.?Lindstrom, Geol. Mag., 3, 1866, pp. 357, 411.?Salter, Cat. Camb. Sil. Foss.,1873, p. 114.?Dybowski, Archiv. f. Natur. Liv.-Ehst-und Kurl., 5, 1873,p. 340.?Zittel, Handb. Pal., 1, 1879, p. 235.?Lindstrom, Bihang till K. Sv.Vet.-Akad. Handl., 7, 1882, p. 42.?Roemer, Leth. Geog., pt. 1, Leth.Pal.,1883, p. 406.?Sherzer, Amer. Geol., 7, 1891, pp. 296-301.?Koken, Die Leit-fossilien, Leipzig, 1896, p. 313.?Weller, Jour. Geol., 6, 1898, p. 700; Bull.Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 20; Zittel-EastmauTextb. Pal., 1, 1900, p. 79; ibid., 2d ed., 1913, p. 87.Goniophyllum pyrainldale (Hisinger).Turbinolia tiirbinata var. pyi-amidalis Hisinger, Tableau des petrif. de Suede, 1sted., 1829, p. 22.Turbinolia pyramidalis Hisinger, Tableau des petrif. de Suede, 2d ed., 1831, p. 26;Lethsea, 1838, p. 101, pi. 28, fig. 12.Goniophyllum pyramidale Milne-Edwards and Haime, Polypiers fossiles, 1851,p. 404, pi. 2, figs. 4, 4a.?Lindstrom, Ofvers. Vet.-Akad. Forhandl., 1805, p.271, pi. 30, figs. 1-9; Bihang till K. Sv. Vet.-Akad., Handl., 7, 1882, p. 43,pis. 1, 5, 6, 7, 8, 9 (see for complete bibliography).?Winchell, Amer. Geol., 6,1890, p. 326.?Weller and Davidson, Jour. Geol., 4, 1896, p. 170, pi. 6, figs.6-8.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 19,fig. 5.Cyathophyllum tetragonum Quenstedt, Handb. der Petrefaktenkunde, Ab. 1,6, 1879, p. 407, pi. 156, figs. 82-85.Silurian: Island of Gotland; England; La Motte, Dubuque County, Iowa(Niagaran).GoNiosTROPHA (part) (Ehlert. See Hormotoma Salter.GONIOTRYPA Ulrich. Genotype: G. bilateralis Ulrich.Goniotrypa Uhich, Contr. Micro-Pal. Cambro-SIl., pt. 2, 1889, p. 40.?^Miller,N. A. Geol. Pal., 1889, p. 307.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 389.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 545.?Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 49.Gouiotrypa bilateralis Ulrich.Goniotrypa bilateralis Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 41,figs. 1-3, pi. 9, fig. 1.?Miller, N. A. Geol. Pal., 1889, fig. 481 (p. 307).?WTiiteaves, Pal. Foss., 3, 1895, p. 118.Richmond: Stony Mountain, Manitoba (Stony Mountain); Island of Auticosti(Charleton).Cotypes.??sit. No. 43475, U.S.N.M.GONIURUS Raymond. Genotype: Bathyurus perspicator Billings.Gouiurus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 65.Goniurus caudatus (BilUngs). >Bathyurua caudatus Billings, Pal. Fosa., 1, Geol. Surv. Canada, 1865, p. 261, fig.245.Goniurus caudatus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 66.Canadian: Port aux Choix, Newfoundland (Quebec?G., H.); Fort Cassiu, Ver-mont; and Ticonderoga, New York (Beekmantowu). 566 BULLETIN 92, UNITED STATES NATIOTSTAL MUSEUM.Goniurus clongatus Raymond.Goniurus elongatus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 66, pi.7, figs. 11, 12.Canadian: Beekmantown) : Philipsburg and St. Armond, Missisquoi County,Quebec.Goniurus perspicator (Billings).Bathyurus perspicator Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 205,fig. 191.Goniurus perspicator Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 65, pi.7, fig. 10.Canadian (Beekmantown): St. Antoine, above Quebec, Canada.GoRGONiA Hall. See Cbasmatopora Eichwald.Gorgonia anticorum Castelnau. Not recognized.Gorgonia anticorum Castelnau, Syst. Sil., 1843, p. 50, pi. 24, fig. 1.Silurian: Lake Huron.Gorgonia aspera Hall. See Cbasmatopora aspera.Gorgonia flabelliformis Eicbwald. See Dictyouema flabelliforme.Gorgonia infundibuliformis Eaton. Not recognized.Gorgonia infundibuliformis Eaton, Geol. Textbook, ed. 2, 1832, p. 43, pi. 4, fig. 46.Gorgonia perantiqua Hall. See Protocrisina perantiqua.Gorgonia proavus Eichwald. See Graptodictya proava.Gorgonia? reteformis Hall. See Dictyonema retiforme.Gorgonia siluriana Castelnau. Not recognized.Gorgonia siluriana Castelnau, Syst. Sil., 1843. p. 50.Silurian: Lake Huron.GoTLANDiA Dall. See Trimerella Billings.GRAMMTSIA Vemeuil. Genotype: G. hamiltonensis Vemeuil.Grammysia Verneuil, Bull. Geol. Soc. France (2) 4, 1847, p. 696.?Pictet, Traite dePal. , 2d ed., 3, 1855, p. 530.?Barrande, Syst. Sil. du Centre Boheme, 6, 1881, p.85; Acephales: Ext. Syst. Sil. du Centre Boheme, 1881, p. 135.?Zittel, Handb.Pal., 2, 1881, p. 128.?Hall, Pal. New York, 5, pt. 1, Lam. 2, 1885, p. 30.?Miller, N. A. Geol. Pal., 1889, p. 482.?Nettelroth, Kentucky Foss. Shells,Geol. Surv. Kentucky, 1889, p. 207.?Koken, Die Leitfossilien, Leipzig,1896, p. 525.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 260.?Dall,Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 439.Grammysia acadica Billings.Grammysia Acadica Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 140,pi. 9, fig. 4, 4a.Silurian (Moydart, Stonehouse): Arisaig, Nova Scotia.Grammysia? arctica Bassler (new name).Grammysia? triangulata Holtedahl (not Williams, 1913), 2d Arct. Exp. Fram,1898-1902, No. 32, 1914, p. 28, pi. 8, fig. 8.Helderbergian (Lower beds): Southwestern EUesmereland, Arctic America.Grammysia Caswelli Foerste. See Cuneamya? caswelli.Grammysia cingulata TRtA.NGULATA McCoy. See Grammysia triangulata. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 567Grammysia neglecta Hall and Whitfield. See Cuneamya negleota.Grammysia pembrokensis Williama.Grammysia pembrokensis Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 344, pi. 31,fig. 2.Silurian (Pembroke): Pembroke, Washington County, Maine.Holotype.?Q&i. No. 58968, U.S.N.M.Grammysia remota Billings.Grammysia remota Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 50, 1874, p. 139,pi. 9, fig. 2.Silurian: Arisaig, Nova Scotia.Grammysia rustica Billings.Grammysia rustica Billings, Pal. Foss., Geol. Surv. Canada, 2, pt. 1, 1874, p. 139,pi. 9, fig. 3.Silurian (Stonehouse) : Arisaig, Nova Scotia.Grammysia triangulata (Salter).Orthonota triangulata Salter, Mem. Geol. Surv. Great Britain, 1848, 2, pt. 1,Pal. app., p. 361, pi. 18, fig. 7.Grammysia cingulata var. triangulata McCoy, British Pal. Foss., 1855, p. 280, pi.Ik, fig. 28.Grammysia triangulata Williams, Proc. U. S. Nat. Mus., 45, 1913, p. 345, pi. 31,fig. 17.Silurian: Great Britain; Long Cove, Washington County, Maine (Pembroke).Plesiotype.?CaX. No. 58970, U.S.N.M.Grammysia? triangulata Holtedahl. See Grammysia arctica.GRAPTODICTYA Ulrich. Genotype: Ptilodictya perelegans Ulrich.Graptodictya Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 151, 165. ? MHler, N. A. Geol. Pal., 1889, p. 307.?Ulrich, Geol. Surv. Illinois, 8, 1890,p. 393.?Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 14.?Simpson, 14thAnn. Rep. New York State Geol. for 1894, 1897, p. 541.?Nickles and Bassler,Bull. U. S. Geol. Surv., 173, 1900, p. 46.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 747.?Bassler, Bull. U. S. Nat. Mus., 77, 1911,p. 121.Graptodictya nitida Ulrich. See Graptodictya perelegans.Graptodictya perelegans (Ulrich).Ptilodictya perelegans Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 94,pi. 4, figs. 16, 16a.Graptodictya perelegans Ulrich, ibid., 5, 1882, p. 165, pi. 8, fig. 5.?Bassler,Bull. U. S. Nat. Mus., 77, 1911, p. 122, fig., p. 121.?Nickles and Bassler, Bull.U. S. Geol. Surv., 173, 1900, p. 280.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 836, pi. 29, fig. 8.Graptodictya nitida Ulrich, Jour. Cincinnati Soc. Nat. Hist, 5, p. 166, pi. 7, figs.8, 8a.Richmond (Waynosvillo, Liberty): Clarkesville, etc., Ohio; Indiana.Eolotypes.?Cat. Nos. 43274, 43661, U.S.N.M.Graptodictya proaya (Eichwald).Gorgonia proavus Eichwald, Urwelt Russlands, 2, 1840, p. 44, pi. 1, fig. 5.Coscinium proavus Eichwald, Leth. Rossica, 1, I860, p. 398.Coscinium proavium Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 158,fig. 122. 568 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. -Graptodictya proava?Continued.Graptodictya proava Bassler, BulL U. S. Nat. Mus., 77, 1911, pp. 123-126, figs.49, 50; pi. 8, fig. 2; pi. 9, figs. 1-6.Clathropora flabellata Hall, Foster and Whitney's Rep. Geol. Lake SuperiorLand Dist., pt. 2, 1851, p. 207, pi. 24, figs. 2a, b.Stictoporella flabellata Nickles and Bassler, Bull. U. S. Geol. Sur\-., 173, 1900, p.416.Stictoporella cribrosa Sardeson (not Ulricli), Jour. Geol., 9, 1901, p. 157, pi. B,figs. 7-9.Middle Ordovician: Uxnorra, Estliouia, Russia (Wassalem); Kenyon, Minnesota,and Escanaba River, Michigan (Trenton).Pledotype.?Cat. No. 57216, U.S.N.M.Graptolites (Didymograpsus) bryonoides McCoy. Sec Tetragxaptus serra.Graftolites (Didymograpsus) caduceus McCoy. See Didymograptus (Isograptus)caduceus.Graptolites dentatus Vanuxem. See Glossograptus (Orthograptus) c|uadrimu-cronatus.Graptolites (Didymograptus) extensus McCoy. See Didymogi-aptus extensus.Graptolites (Didymograptus) fruticosus McCoy. See Tetragraptus fruticosus.Graptolites (Didymograptus) logani McCoy. See Loganograptus logani.Graptolites nilssoni Harkness. See Monograptus gregarius.Graptolites (Didymograptus) octobrachiatus McCoy. See Dichograptus octo-brachiatus.Graptolites priodon of authors. See Monograptus priodon.Graptolites pristis (part) of authors. See Diplograptus foliaceus.Graptolites (Didymograpsus) quadribrachiatus McCoy. See Tetragraptusquadribrachiatus.Graptolites (Didymograptus) thureaui McCoy. See Goniograptus thureaui.Graptolites venosus Hall. See RetioUtes geinitzianus venosus.Graptolithus abnormis Hall. See Clonograptus abnormis.Graptolithus acutus Hopkinson. See Monograptus iutermedius.Graptolithus alatus Hall. See Tetragraptus alatus.Graptolithus amplexicaule Hall. See Diplograptus (Glyptograptus) amplexi-caule.Graptolithus angustifolius Hall. See Diplograptus (Glyptograptus) anguslifolius.Graptolithus annectans Walcott. See Leptograptus annectans.Graptolithus arcuatus Hall. See Didymograptus arcuatus.Graptolithus arundinaceus Hall. See Mastigograptus arundinaceus.Graptolithus bicornis Hall. See Climacograptus bicornis. .Graptolithus bii'Idus Hall. See Didymograptus bifidus. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 5G9Graptolithus bigsbyi Hall. See Tetragraptus similis.Graptolitiius bryonoides Hall. See Tetragraptus amii and T. serra.Graptolitiius caduceus Chapman. See Didymograptus (Isograptus) caduceus.Graptolithus clintonensis Hall. See Monograptus clintonensis.Graptolithus constrictus Hall (part). See Didymograptus extensus and D. hirundo.Graptolithus convolutus Carruthers. See Monograptus convolutiis.Graptolithtts cruciper Hall. See Tetragraptus crucifer.Graptolithus dentatus D'Orbigny. See Diplograptus foliaceus.Graptolithus denticulatus Hall. See Tetragraptus denticulatua.Gr.u>tolithus divaricatus Hall. See Dicellograptus divaricatus.Graptolithus divergens Hall. See Amphigraptus divergens.Graptolithus ensiformis Hall. See Trigonograptus ensiformis.Graptolithus extensus Hall. See Didymograptus extensus.Graptolithus extenuatus Hall. See Didymograptus extenuatua.Graptolithus flaccidus Hall. See Leptograptus fiaccidus.Graptolithus flemingii Salter. See Monograptus flemingii.Graptolithus (Dichograptus) flexilis Hall. See Clonogi-aptus flexilis.Graptolithus foliaceus Murchison. See Diplograptus foliaceus.Graptolithus folium Salter. See Diplograptus foliaceus.Graptolithus fruticosus Hall. See Tetragraptus fruticosus.Graptolithus furcatus Hall. See Dicranograptus furcatus.Graptolithus gracilis Hall. See Nemagraptus gi-acilis and N. gracilis surcularis.Graptolitiius Headi Hall. See Tetragraptus headi.Graptolithus (Diplograptus) hypniformis White. See Diplograptus foliaceus.Graptolitiius indentus Hall. See Didymograptus indentus.Graptolithus intermedius Carruthers. See Monograptus intermedius.Graptolithus laevis Hall. See Phycograptus laevis.Graptolithus logani Hall. See Loganograptus logani.Graptolithus marcidus Hall. See Cryptograptus tricornis.Graptolithus milesi Hall. See Clonograptua luilesi.Graptolithus mucronatus Hall. See Lasiograptua mucronatus.Grai-tolithus multifasciatus Hall. See Amphigraptus multifasciatus.Graptolithus multipasciculatus Lesley. See Ampliigi-ai>tus multifasciatus.Gr.'U'tolituus nitidus Hall. See Didymograptus nitidus. 570 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM.Graptolithus octobrachiatus Hall. See Dichograptus octobrachiatua.Graptolithus octonarius Hall. See Dichograptus octonarius.Graptolithus patulus Hall. See Didymograptus patulus.Graptolithus pennatulus Hall. See Didymograptus pennatulus.Graptolithus (Diplograptus) peosta Hall. See Diplograptus peosta.Graptolithus priodon Barrande. See Monograptus priodon.Graptolithus priodon Chapman. See Monograptus clintonensis.Graptolithus pristinipormis Hall. See Diplograptus dentatus.Graptolithus pristis Hall (part). See Diplograptus foliaceus, D. foliaceus acutus,D. foliaceus incisus, Glossograptus (Orthograptus) quadrimucronatus, and Diplo-graptus peosta.Graptolithus putillus Hall. See Climacograptus (Mesograptua) putillus.Graptolithus quadribrachiatus Hall. See Tetragraptus quadribrachiatus.Graptolithus quadrimucronatus Hall. See Glossograptus (Orthograptus) quadri-mucronatus.Graptolithus ramosus Salter. See Dicranograptus rectus.Graptolithus (Diplograpsus) R.'uaosus Chapman. See Dicranograptus ramosus.Graptolithus ramulus Hall. See Temnograptus? ramulus.Graptolithus (Climacograptus) ramulus White. See Dicranograptus nicholsoni .whitianus.Graptolithus richardsoni Hall. See Holograptus? richardsoni.Graptolithus rigidus Hall. See Clonograptus rigidus.Graptolithus Sagittarius Hisinger. See Didymograptus sagitticaulis.Graptolithus (Prionodus) sedgwickh distans. See Monograptus distans.Graptolithus (Monoprion) serratulus Hall. See Didymograptus serratulus.Graptolithus sextans Hall. See Dicellograptus sextans and D. sextans exilia.Graptolithus similis Hall. See Didymograptus similis.Graptolithus spinulosus Lapworth. See Glossograptus ciliatuq.Graptolithus subtenuis Hall. See Didymograptus subtenuis.Graptolithus tentaculatus Hall. See Retiograptus tentaculatus.Graptouthus tenuis Portlock (part). See Leptograptua annectans and Didymo-graptus subtenuis.Graptolithus whitpieldi Hall. See GlosaograptuB whitfieldi and Lasiograptuabimucronatus.Graptolithus whitianus Miller. See Dicranograptus nicholsoni whitianus.Graptopora socialis Salter. See Dictyonema flabelliforme. BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 571GRAPTOSPONGIA Ruedemann. Genotype: G. pusilla Ruedomann.Graptospongia Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 485.Graptospougia pusUla Ruedemann.Graptospongia pusilla Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,p. 485, figs. 467, 468.Chazyan (Normanskill) : Schuylerville, Saratoga County, New York.Greenfieldia Grabau. See Hindella subgenus Greenfieldia.Gypidia unguiformis Ulrich. See Conchidium unguiforme.Gypidula Dalman. See Conchidium Linnaeus.GYPIDULA Hall. Genotype: Pentamerus occidentalis Hall.GjT)idula Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 163; Pal.New York, 4, 1867, pp. 373, 380.?Zittel, Handb. Pal., 1, 1880, p. 694.?Wal-cott, Mon. U. S. Geol. Surv., 8, 1884, p. 161.?Miller, N. A. Geol. Pal., 1889,p. 346.?Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 322.Sieberella (Ehlert, Fischer's Man. Conch., 1887, p. 1311.Gypidula and Sieberella Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 245;13th Ann. Rep. New York State Geol., 1895, pp. 845, 846.Gypidula (Sieberella) coeymanensis corriganensis Maynard.Gypidula (Sieberella) coeymanensis var. corriganensis Maynard, Maryland Geol.Surv., Low. Dev., 1913, p. 345, pi. 62, figs. 12-18.Helderbergian (Keyser): Devils Backbone, near Cumberland, Maryland; Key-ser. West Virginia.Gypidula (Sieberella) coeymanensis prognostica Maynard.Gyi^idula (Sieberella) coeymanensis var. prognostica Maynard, Maryland Geol.Surv., Low. Dev., 1913, p. 344, pi. 62, figs. 9-11.?Holtedahl, Second Arct.Exped. "Fram," 1898-1902, No. 32, 1914, p. 21, pi. 7, fig. 5.Helderbergian (Keyser): Pinto, Cumberland, Hancock, etc., Maryland; Keyser,West Virginia; Hyndman, Pennsylvania; Southwestern Ellesmereland,Arctic America.Gypidula coppingeri (Etheridge).Pentamerus coppingeri Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p.594, pi. 25, figs. 2, 3.Gv-pidula coppingeri Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226.Niagaran: Offley Island, Arctic America.Gypidula (Sieberella) galeata (Dalman).Atrypa galeata Dalman, Kongl. Svenska, Vet.-Akad. Handl., for 1827, 1828, p. 46,pi. 5, fig. 4.?Troost, 6th Geol. Rep. Tennessee, 1841, p. 15.?Vanuxem, Geol.New York, Rep. 3d Dist., 1842, p. 117, fig. 1.?Castelnau, Essai Syst. Sil.I'Am^riquo Septentrionale, 1843, p. 39, pi. 14, fig. 4.Pentamcms galeatua Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, p.105, figs. 1-3.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 825, fig. 646.?Hall, Pal. New York, 3, 1859, p. 257, pi. 46, fig. 1; pi. 47, fig. 1.?Billings,Geol. Canada, 1863, p. 957, fig. 454.?Lesley, Geol. Surv. Pennsylvania, Rep.P 4, 1889, p. 616, fig.?Sherzer, Michigan Geol. Sur\'., 7, 1900, pt. 1, p. 224.Pentamenis galeatua var. Whiteaves, Cont. to Canadian Pal., 1, 1891, p. 234.Sieberella galeatua Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 24G, fig.175; pi. 72, figs. 7-13. 572 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Gypidula (Sieberella) galeata?Continued.Gjqiidiila (Sieberella) galeatus Kindle and Breger, 28tli Ann. Rep. Dep., Geol.Nat. Res. Indiana, 1904, p. 437, pi. 2, figs. 20, 21, 23-29.?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 278, fig. 388.Devonian: Etirope; New York; Maryland; Pennsylvania; New Brunswick; etc.Identified in Niagaran at Delphi, Indiana, and in the Monroan of Michigan,both probably erroneously.Gypidula globulosa (Nettelroth).Pentamerus globiilosus Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol.Surv., 1889, p. 54.Gypidula globulosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226.Niagaran (Louisville) : Louis\alle, Kentucky.Cotyj^es.?Cat. No. 51339, U.S.N.M.Gypidula knotti (Nettelroth).Pentamerus knotti Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol.Surv., 1889, p. 56, pi. 32, figs. 9-12.Gypidula knotti Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226.Niagaran (Louisville): Louisville, Kentucky.Eolotype.?C&t. No. 51354, U.S.N.M.Gypidula (Sieberella) nucleus (Hall and ^Tiitfield).Pentamerus galeatus Hall and Whitfield, 24th Rep. New York State Cab. Nat.Hist., 1872, pp. 197, 200a.PentamerUB nucleus Hall and Whitfield, 27th Rep. New York State Cab. Nat.Hist., 1875, pi. 9, figs. 30-32.?Nettelroth, Kentucky Fossil Shells, Mem.Kentucky Geol. Surv., 1889, p. 59, pi. 27, figs. 25-27; pi. 33, figs. 27-33.Sieberella nucleus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 247, pi. 72,figs. 1-3.Gypidula nucleus Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226.Gypidula (Sieberella) nucleus. Kindle and Breger, 28th Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1904, p. 438, pi. 2, figs. 18, 19.Niagaran: Louisville, Kentucky (Louisville); Georgetown, Indiana.Plesiotypes.?Cat. No. 51328, U.S.N.M.Gypidula (Sieberella) roemeri (Hall and Clarke).Pentamerus galeatus Roemer (not Dalman), Sil. Fauna West. Tennessee, 1860, p.73, pi. 5, fig. 14.Sieberella -roemeri Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 247, pi. 72,fig. 6; 48th Rep. New York State Mus., 2, 1897, p. 370, pi. 13, fig. 4; 14thRep. State Geol. New York for 1894, 1897, p. 370, pi. 13, fig. 4.Gypidula roemeri Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 227.?Foerste,Jour. Geol., 11, 1903, p. 711 (loc. occ); Bxill. Sci. Lab. Denison Univ., 14,1909, p. 70, pi. 3, fig. 51C.Niagaran: Decatur County, Tennessee (Brownsport); ?Newsom, Tennessee(Waldron).Gypidula simplex Foerste.Gypidula simplex Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 70, pi. 3,figs. 51A, B.Niagaran (Waldron): Newsom, Tennessee.Gypidula subglobosa MajTiard.Gypidula sxibglobosa Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 346,pi. 62, figs. 20-22.Helderbergian (Keyser): Cash Valley, near Cumberland, Maryland. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 573Gyples.?Cat. Nos. 46558-46560, U.S.N.M.Heterospongia subramosa knotti Foerste. See Heterospongia knotti.HETEROTRYPA Nicholson. Genotype: Monticulipora frondo.sa D'Orbigny.Heterotrypa (in part) Nicholson, Pal. Tabulate Corals, 1879, p. 291; Genus Mon-ticulipora, 1881, pp. 101, 103.?Zittel, Handb. Pal., 1, p. 615.?Ulrich, Jour.Cincinnati Soc. Nat. Hist., 5, 1882, p. 155; ibid., 6, 1883, p. 83.?Foord,Contr. Micro-Pal. Cambro-Sil., 1883, p. 20.?Ulrich, Jour. Cincinnati Soc.Nat. Hist., 6, 1883, pp. 83-85.?Roemer, Leth. geng., pt. 1, Leth. Pal., 1883,p. 471.?Rominger, Amer. Geol., 6, 1890, pp. 114, 119.?Ulrich, Geol. Sur.Illinois, 8, 1890, pp. 371, 413; Geol. Minnesota, 3, 1893, p. 267.?Zittel's 614 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.HETEROTRYPA?Continued.Textb. Pal. (Engl, ed.), 1896, p. 104.?Ulrich, Zittel's Textb. Pal. (Engl,ed.), 1896, p. 273.?Simpson, 14tli Ann. Rep. State Geol. New York for 1894,1897, p. 578.?Nickles and Baesler, Bull. U. S. Geol. Sui\\, 173, 1900, p.31.?Cumings, Amer. Geol., 29, 1902, p. 199.?Ulrich and Baseler, Smith.Misc. Coll., Quart., 47, 1904, pp. 24, 25.?Bassler, Zittcl-Eaetman Textb.Pal., 1913, p. 333.Heterotrypa afflnis (Ulrich).Araplexopora afTinis Ulrich, Geol. Sur. Illinois, 8, 1890, p. 450, pi. 36, figs. 2, 2a.Monticuliporaaffinis James, Jour. Cincinnati Soc. Nat. Hist., IG, pt. 5, 1894, p. 193.Heterotrypa afEnis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 289.Richmond (Fernvale): Wilmington, Illinois.Sections oi holotype.?Cat. No. 43769, U.S.N.M.Heterotrypa andrewsi Nicholson. See Hallopora andrewsi.Heterotrypa foerstel Nickles.Heterotrypa foerstei Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 48, pi. 2,fig. 5.?Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 126.Trenton (Upper) : Near Rogers Gap, Scott County, Kentucky.Heterotrypa frondo.sa (D'Orbigny).MonticuliporairondosaD'Orbigny, Prodr. dc Pal., 1, 1850, p. 25.?Milne-Edwardsand Haime, British Foss. Corals, 1854, p. 265.?Milne-Edwards, Hist. Nat.des. Corall., 3, 1860, p. 276.?^^^lite, 11th Ann. Rep. Indiana Geol. Nat. Hist.,1882, p. 380, pi. 48, figs. 2, 3.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4,1889, p. 420, figs.?Boule and Thevenin, Ann. de Pal., 1, 1906, p. 6. pi. 2,figs. 9, 10; pi. 3, figs. 1, 2.Chsetetes frondosus Milne-Edwards and Haimo, Pol. Foss. Terr. Pal., 1851, p. 267,pi. 19, figs. 5, 5a.?Quenstedt, Rochren- iind Stcrnkorallen, 1881, p. 73, pi.146, fig. 8 (not 3-5).Chaetetes frondosus limatus Quenstedt, Roehren- und Stcrnkorallen, 74, 1881, pi.146, fig. 9.Heterotrj-pa frondosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 23;ibid., G, 1883, p. 83.?Nickles and Bixssler, Bull. U. S. Geol. Surv., 173, 1900,p. 289.?Ulrich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904, p. 25, pi.11, figs. 1-3.Chretetes mammulatus (not D'Orbigny) Nicholson, Quart. Jour. Geol. Soc.London, 30, 1874, p. 508, pi. 30, figs. 2, 2b; Pal. Ohio, 2. 1875. p. 207.Monticulipora (Heterotr>'pa) mammulata (not D'Orbigny), Nicholson, Pal.Tabulate Corals, 1879, p. 294. ]>!. 13, figs. 1, lb; Genus Monticulipora, 1881,p. 104, pi. 6, figs. 1, Ig.Monticulipora mammulata (not D'Orbigny) James and James, Jour. CincinnatiSoc. Nat. Hist.. 11, 1888. p 16.?James, ibid., 18, 1895, p. 69.Dekayia frondosa Cumings, 32d Ann. Rep. Dep. Geol. Nat. Ros. Indiana, 1908,p. 812, pi. 15, figs. 1-le; pi. 28, fig. 9; pi. 29. fig. 1.Dckayolla rystata Cumings, Amcr. Geol., 28. 1901. p. 375, pi. 35, figs. l-6a.Dekayia frondosa var. cystata Cumings, 32d Ann. Rep. Dep. Geol. Nat. Ros.Indiana, 1908, p. 813, pi. 14, figs. 1, la; pi. 28, fig. 3.Dekayia perfrondosa Cumings. Amer. Geol., 29. 1902, p. 207, 210, 212. pi. 9, figs.9', 11-13, 15, 16; pi. 10, figs. 1, 6; pi. 11. fig. 6; pi. 12, fig. 2.Maysville (McMillan): Cincinnati, Ohio, and vicinity.Fragment of Edwards and Ilainic's plcsiofype.?Cat No 35113, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 615Heterotrypa iuflecta Ulricli.neteroti ypa iuflecta Ulrich, Geol. Surv. Illinois, 8, 1890, p. 414, pi. 37, figs. 2-2d.Monticulipora inflecta J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895,p. 77.Heterotrypa ulrichi-inflecta Cumings, Amer. Geol., 29, 1902, p. 212, pi. 9, fig. 3.Dekayia inflecta Cumings, 32(1 Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.814, pi. 15, figs. 2, 2a.Maysville (Corryville) : Cincinnati, Ohio, and vicinity.Cottjpes?Cat. No. 43367, U.S.N.M.Heterotrypa lobata (Cumings).Dekayia ulrichi-lobata Cumings, Amer. Geol., 29, 1902, p. 203, pi. 9, fig. 2; pi. 10,fig. 5; pi. 11, figs. 3, 4; 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 815, pi. 27, fig. 21.Dekayia ulrichi-expansa Cumings, Amer. Geol., 29, 1902, p. 212, pi. 9, figs. 5, 6;pi. 11, fig. 7.Maysville (Fairmount): Manchester Station, etc., Indiana; Cincinnati, Ohio,and vicinity.Heterotrypa microstigma Cumings and Galloway.Heterotrypa microstigma Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1913, p. 76, pi. 8, figs. 1-lc.Richmond (Waynesville) : Big Four Railroad, near Weisburg, Indiana.Heterotrypa parviillpora Ulrich and Bassler.Heterotrypa parvulipora Hayes and Ulrich, U. S. Geol. Surv., Folio 95, ill. sheet,1903, fig. 26.?Uhich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904, p.26, pi. 11, figs. 4-6.?Nickles, Bull. Kentucky Geol. Surv. 5, 1905, p. 45,pi. 1, fig. 12.Trenton (Catheys): Maury County, etc., Tennessee; Kentucky.Cotypes?Cat. No. 43186, U.S.N.M.Heterotrypa paupera (Ulrich).Dekayia paupera Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 153, pi. 6,figs. 10, 10a.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 817, pi. 15, fig. 3, 3a; pi. 28, fig. 6.Heterotrypa paupera Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 290.Maysville (Corryville): Cincinnati, Ohio, and vicinity.nolotype.?Cat. No. 43656, U.S.N.M.Heterotrypa prolifica Ulrich. See Heterotrypa subramosa-prolifica.Heterotrypa ramosa Nicholson. See Hallopora ramosa.Heterotrypa singularis Ulrich. See Dekayella singularia.Heterotrypa solitaria Ulrich.Heterotrypa solitaria Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 88,pi. 1, figs. 3-3b.Maysville (Fairmount): Covington, Kentucky; Maury County, Tennessee.Tlolotype.?Cat. No. 43664, U.S.N.M.Heterotrypa subfrondosa (Cumings).Dekayia subfrondosa Cumings, Amer. Geol., 29, 1902, p. 204, pi. 9, figs. 7, 8 (asD.Bubramosa); pi. 10, figs. 3, 7, 8; pi. 11, fig. 1; pi. 12, fig. 4; 32d Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1908, p. 821, pi. 14, figs. 6, 6c; pi. 28, fig. 10.Maysville (Fairmount): Manchester Station, Indiana; Cincinnati, Ohio, andvicinity. 616 BULLETIN 92, UNITED STATJ^S NATIONAL MUSEUM.Heterotrypa subpulchella (Nicholson).Chsetctes subpulchellus Nicholson, Pal. Ohio, 2, 1875, p. 19G, ])1. 21, figs. C, Ca.Monticulipora (Ileterotrj'pa) subpulchella Nicholson, Genus Monticulipora, 1881,p. 134, fig. 23, pi. 5,' figs. 2, 2a.Monticulipora subpulchella James and James, Jour. Cincinnati Soc. Nat. Hist.,10, 1888, p. 181.?J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894,p. 204.Heterotrypa subpulchella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883,p. 83.?Nickles, Bull. Kentucky Gool. Surv., no. 5, 1905, p. 51, pi. 2, fig. 12.Dekayia perfrondosa-subpulchella Cumings, Amer. Geol., 29, 1902, p. 211, 212,pi. 9, fig. 14; pi. 10, fig. 4.Dekayia subpulchella Cumings, 32d Ann. Rep. Dep. Geol. Nat. Ros. Indiana,1908, p. 822, pi. 16, figs. 1, la; pi. 28, fig. 11.Mays\'ille (Fairmount): Cincinnati, Ohio, and \acinity.Heterotrypa subramosa (Ulrich).Atactopora subramosa Ulrich, Jour. Cincinnati Soc. Nat. HLst., 2, 1879, p. 124,pi. 12, figs. 6-6c.Heterotrypa subramosa Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900,p. 290.Dekayia subramosa Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 823, pi. 15, figs. 5, 5b; pi. 29, fig. 2.Richmond (Waynesville): Jacksonburg, Hanover, etc., Ohio; Indiana.Ilolotype.?Cat. No. 43663, U.S.N.M.Heterotrypa subramosa proliflca Ulrich.Heterotrypa prolifica Ulrich, Geol. Surv. Illinois, 8, 1890, p. 413, pi. 37, figs. 1-ld;Geol. Minnesota, 3, 1893, p. 268.?Simpson, 14th Ann. Rep. State Geol. NewYork for 1894, 1897, figs. 145, 146 (p. 579).Monticulipora prolifica J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18,1895, p. 75.Heterotrypa subramosa-prolifica Nickles and Bas-sler, Bull. U. S. Geol. Surv., 173,1900, p. 290.Dekayella perfrondosa-prolifica Cumings, Amer. Geol., 29, 1902, p. 212 (gen. ref.).Dekayia prolifica Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 820, pi. 15, figs. 4-4b; pi. 29, fig. 3.Richmond: Blanchester, Waynesville, etc., Ohio; Richmond, etc., Indiana;Illinois; Wisconsin; etc.Cotypes.?Cat. No. 43368, U.S.N.M.Heterotrypa ulrichi-inflecta Cumings. See Heterotrypa inflecta.Heterotryp.\. vaupeli Ulrich. See Nicholsonella vaupeli.Hexameres Barrande. See Hexameroceras Hyatt.HEXAMEROCERAS Hyatt. Genotype: Phragmoccraa pand- ri Barrande,Hcxaraoriou (Hexameres) Barrande, Syst. Sil. Boheme 2, pt. 1, 1867, j^p. 203,265.Hexameroceras Hyatt. Troc. Boston Soc. Nat. Hist., 22, 1834, p. 278.?Foord, Cat.Foss. Ceph. Briti.^h Mus., 1, 1888, p. 242.?Newell, Proc. Boston Soc. Nat.Hist., 23, 1888, p. 478.?Jaekel, Zeita. d. d. geol. Gesell., 54, Protok., 1902,pp. 8, 68, 80.?Jaekel in Rucdemann, Amer. Geol., 31, 1903, p. 200.Hexamoceraa Miller, N. A. Geol. Pal., Ist App., 1892, p. 696. BTBLTOGRAPHIC LIST OF GB:NERA AND SPECIES. 617Hexameroceras cacabiforme Newell.Ilexameroceras cacabiformis Newell, Prop. Boston Soc. Nat. Hist., 23, 1888,p. 481, figs.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 131, fig.Hexamoceras cacabiforme Miller, N. A. Geol. Pal., 1st App., 1892, p. 696 (gen.ref.).Niagaran: Delphi. Indiana.Hexameroceras delphicolum Newell.Hexameroceras delphicolum Newell, Proc. Boston Soo. Nat. Hist., 23, 1888, p.479, figs.?Kindle and Breger, 28th Ann. Rep. Dept. Geol. Nat. Eos. Indiana,1904, p. 475.Hexamoceras delphicolum Miller, N. A. Geol. Pal., Ist App., 1892, p. 696 ,Niagaran: Delphi and Huntington, Indiana.Hexameroceras hertzeri (Hall and WTiitfield).Crytoceras Hertzeri Hall and Whitfield, Geol. Siu-v. Ohio Pal., 2, 1875, p. 150,pi. 8, figs. 7, 8.Hexameroceras herzeri Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 130,fig. 1378.Gomphoceras hertzeri Miller, N. A. Geol. Pal., 1889, p. 437 (gen. ref.).Hexamoceras hertzeri Miller, N. A. Geol. Pal., 1892, p. 696 (gen. ref.).Niagaran (Guelph) : Cedarville, Ohio.Hexamoceras Miller. See Hexameroceras Hyatt.Hexamoriox Barrande. See Hexameroceras Hyatt.HEXAPORrTES Pander. See Dianulites Eichwald.Hexaporites fungiformis Leuchtenberg. See Dianulites petropolitana.HINDELLA Davidson. Genotype: Athyris umbonata Billings.Hindella Davidson, Suppl. British Sil. Brach., Pal. Soc, 1882, p. 130.?Miller,N. A. Geol. Pal., 1889, p. 346.?Hall and Clarke, Pal. New York, 8, pt. 2,1893, p. 63, figs. 46-51; 13th Ann. Rep. New York State Geol., 1895, p. 769.?Grabau, Michigan Geol. Sur., Geol. Ser., 1, 1909, p. 148.?Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 415.Greenfieldia Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 148. (Geno-tj-pe: Hindella whitfieldi Grabau.)Hindella? ambigua Savage. ^Hindella? ambigua Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 89, pi. 4, figs.17 and 18.Upper Medinan (Edgewood): Near Edgewood, Pike County, Missouri; Alex-ander County, Illinois.Hindella phoca Ami. See Lissatrypa phoca.Hindella prinstana (BilUngs).Athyris Prinstana Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 145, fig.122 (advance sheets, 1862).Meristella prinstana Miller, N. A. Geol. Pal., 1889, p. 354.Hindella prinstana Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 64, pi. 41,fig. 28; pi. 49, fig. 1.Athyris turgida Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 69.Gamachian (Ellis Bay) and Anticostian (Becsie River): Prinsta Bay, Ellis Bay,etc., Anticosti. 618 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.HindoUa? (Greenfleldia) rostralis Grabau.Hindella? (Greenfieldia) rostralis Grabau, Michigan Geol. Surv., Geol. Ser., 1,1909, p. 150, pi. 21, figs. 1, 2, 7.Lower Monroan (Greenfield): Greenfield, Ohio.HIndclIa umbonata (Billings).Athyris umbonata Dillings, Pal. Fossils, 1, Geol. Sur\'. Canada, 1865, p. 144, fig.121 (adv. sheets, 1862); Geol. Canada, 1863, p. 317, fig. 331.Hindella umbonatii Davidson, Suppl. British Sil. Brach., Pal. Soc, 1882, p. 130,fig.?Uall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 64, figs. 46-51; pi. 41,figs. 26, 27, 29, 30.Meristella iimbonata Foerste, Biill. Sci. Lab. Denison Univ., 1, 1885, p. 88, pi.13, fig. 2; Gool. Ohio, 7, 1895, p. 590, pi. 25, fig. 2.Alexandrian (Ellis Bay) and Anticostian (Becsie River-Gun lliverj: Island ofAnticosti.L'pper Medinan (Brassfield): Dayton, Ohio.Hindella? (Greenfleldia) whltfleldl Grabau.Hindella? (Greenfieldia) whitfieldi Grabau, Michigan Geol. Surv., Geol. Ser., 1,1909, p. 149, pi. 19, fig. 4; pi. 21, figs. 11, 17-19; pi. 30, figs. 8-10.Meristella bella Whitfield (not Hall), Ann. New York Acad. Sci., 5, 1891, p. 510,pi. 5, figs. 8-10; Pal. Ohio, 7, 1893, p. 412, pi. 1, figs. 8-10.?Sherzer, Geol.Surv. Michigan, 7, pt. 1, 1900, p. 223, pi. 17, figs. 8-10.Lower Monroan (Greenfield): Greenfield, Ohio.HINDIA Duncan. Gcnotj-pe: IT. ppha?roidalis Duncan.llindia Duncan, Ann. Mag. Nat. Hist. (5), 4, 1879, p. 84.?Ilindo, CatalogueFossil Sponges, British Mus., 1883, p. 57.?Zittel, Neues Jahrb. Min., Geol.Pal., 2, 1884, p. 79.?Rauff, Ann. Mag. Nat. Hist., 5th ser., 18, 1886, p. 169.?Hinde, Ann. Mag. Nat. Hist., 5th ser., 19, 1887, p. 67.?Mon. British Foss.Sponges, Palseontographical Soc, 1888, p. 115.?Miller, N. A. Geol. Pal., 1889,p. 160.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 226.?James, Jour. CincinnatiSoc. Nat. Hist., 14, 1891, p. 5C.?Rauff. Palaeontographica, 40, 1894. p. 327.?Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 79.?Koken, DieLeitfossilien, Leipzig, 1896, p. 337; Zittel-Eastman Textb. Pal., 1, 1900, p.51.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p. 14.?Zittel-East-man Textb. Pal., 2d ed., 1913, p. 56.Microspongia, Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 37. ? Ulrich, Amer. Geol., 1, 1888, p. 325.?Miller, N. A. Geol. Pal., 1889, p. 161.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 228.?James, J. F., Jour. CincinnatiSoc. Nat. Hist., 14, pt. 1, 1891, p. 54. (Genotype: M. gregaria Miller andDyer.)Observation.?Although Microspongia has priority it was so poorly defined thatits identity with Hindia would not be suspected without study of the tj-j^es.HiNDiA FIBROSA of authors. See Hindia sphseroidalis.Ilindla gregaria (Miliar and Dyer).Mi. New York State Cab. Nat. Hist, (extras, 1864),1868, p. 313, pi. 12 (3), fig. 3; rev. ed., 1870, p. 357, pi. 12, fig. 2.?Chamberliii,Geol. Wisconsin, 1883, 1, p. 191, fig.Niagaran (Racine): Waukesha, Wisconsin.Holocystites papulosus Miller.Holocystites papulosus Miller, 17lh Ann. Repu Indiana Dep. Geol. Nat. Res.,1892, p. 628, pi. 5, figs. 7, 8 (adv. sheets 1891, p. 18.?Rowley in Greene'sCont. Indiana Pal., 16, 1903, p. 166, pi. 48, figs. 16-18.Clinton (Osgood): Jefferson County, Indiana.Holocystites parvulus Miller.Holocystites parvulus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892,p. 628, pi. 5, fig. 6 (adv. sheets 1891, p. 18).Clinton (Osgood): Jefferson County, Indiana.Holocystites parvus Miller.Holocystites parvus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892,p. 626, pi. 4, figs. 4, 5 (adv. sheets 1891, p. 16).Clinton (Osgood): Jefferson County, Indiana.Holocystites perlongus Miller.Holocystites perlongus Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 132, pi.5, figs. 4, 4a.Clinton (Osgood): Ripley County, Indiana.Holocystites plenus Miller.Holocystites plenus Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 135, pi. 6,figs. 2, 2a.Clinton (Osgood): Jefferson County, Indiana.Holocystites pustulosus Miller.Holocystites pustulosus Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 134,pi. 6, figs. 1, la.Niagaran (Laurel): NearWaldron, Indiana.Holocystites rotundus Miller.Holocystites rotundus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 107, pi.9, figs. 3, 3a, 3b.Clinton (Osgood): Ripley County, Indiana.Holocystites scitulus Miller.Holocystites scitulus Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892,p. 624, pi. 2, figs. 5, 6 (adv. sheets 1891, p. 14); N. A. Geol. Pal., 2d. App.,1897, p. 747, fig. 1359.Clinton (Osgood): Jefferson County, Indiana.Holocystites scutellatus Hall.Holocystites scutellatus Hall, 20th Rep. New York State Cab. Nat. Hist., 1868(extras Dec. 1864), p. 314, pi. 12 (3), fig. 1; rev. ed. 1870, p. 357, pi. 12, fig. 1.Niagaran (Racine): Waukesha, Wisconsin.Holocystites spangleri Miller.Holocystites spangleri Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892,p. 626, pi. 4, fig. 6 (adv. sheets 1891, p. 16).Clinton (Osgood): Jefferson County, Indiana. 624 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Holocystltes sphacrlcus Winchell and Marcy.Ilolocystitessphsericus Winchell and Many, Mem. Bostx)n Soc. Nat. Hist., 1, 1865,p." in.Niagaran (Racine): Chicago, Illinois.Holocystltes sphiproldalls Miller and Gurlcy.Ilolocystites sphtiToidulis Miller and Gurley, Bull. Illinois State Mus. Nat. Hist.,7, 1895, p. 85, pi. 5, figs. 3, 4.Clinton (Osgood): Near Madison, Indiana.Holocystltes splendens Miller and Gurley.Ilolocystites splendens Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5,1894, p. 7, pi. 1, figs. 7, 9.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 747,fig. 13G0.Clinton (Osgood): Near Madison, Indiana.HoLocYSTiTES 8UBGLOBOSUS Miller. See Trematocystis subglobosus.Holocystltes subovatus Miller.Ilolocystites subovatus Miller, 17th Ann. Kep. Indiana Dep. Geol. Nat. Res., 1892,p. C27, pi. 5, figs. 4, 5 (adv. sheets 1891, p. 17); N. A. Geol. Pal., Ist App.,1892, p. G80, fig. 1237.CUnton (Osgood): Jefferson County, Indiana.Holocystltes subrotundus Miller.Ilolocystites subrotundus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 107,pi. 9, figs. 2, 2a.Clinton (Osgood): Ripley, Indiana.Holocystltes tumldus Miller.Holocyetites tumidus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 104,pi. 9, figs. 1, la.CUnton (Osgood): Ripley, Indiana.Holocystltes turblnatus Miller.Ilolocystites turbinatus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1880, p. 259,pi. 15, figs. 7, 7a; N. A. Geol. Pal., 1889, p. 255, fig. 339.Clinton (Osgood): Ripley County, Indiana.Holocystltes ventrlcosus Miller.Holocystites ventricoeus Miller, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 108,pi. 10, fig. 4.Clinton (Osgood): Ripley County, Indiana.Holocystltes wetherbyl Miller.Holocystites wetherbyi Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 131,pi. 5, figs. 2, 2a, 2b.Clinton (Osgood"): Ripley County, Indiana.Holocystltes wlncliclll Hall.Holocystites winchelli Hall, 20th Rep. Now York State Cab. Nat. Hist., 1868(extras, 1804), p. 313, pi. 12 (3), fig. 3; rev. ed., 1870, p. 356, pi. 12, fig. 3.Niagaran (Racine): Waukesha, Wisconsin.Holocystltes wykofll Miller.Holocystites w-jkufli Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res., 1892,p. 625, pi. 4, figs. 1. 2 (Adv. sheets, 1891, p. 15).riinton (Osgood): Jefferson County. Indiana. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 625HOLOGRAPTUS Holm. Genotype: H. expansum Holm.Holograptus Holm. Ofver. K. Vet. Akad. Forhandl. 38, No. 9, 1881, p. 45.?Her-mann, Geol. Mag., dec. 3, 3, 1886, p. 20.?Wiman, Bull. Geol. Inst. Univ.Upsala, 2, pt. 2, No. 4, 1896, p. 265.?Elles and Wood, Mon. British Grapt.,Pal. Soc, 1902, p. 74.Eouvilligraptus Barrois, Ann. Soc. Geol. du Nord, 21, Lille, 1893, p. 109.Holograptus richardsoni (Hall).Graptolithus Richardsoni Hall, Geol. Surv. Canada, dec. 2, 1865, p. 107, pi. 12,figs. 1-8.Graptolithus (Monoprion) richardsoni Hall, 20th Rep. New York State Cab. Nat.Hist., 18G8, p. 226, pi. 3, fig. 30; rev. ed. (1870), p. 261, pi. 3, fig. 30; p. 223.Holograptus? richardstnii Gurley, Jour. Geol., 4, 1896, p. 99 (gen. ref.).Rouvilligraptus Richardsoni Barrois, Ann. Soc. Geol. du Nord., 21, Lille, 1893,p. 109, pis. 3, 4.Clonograptus Richardsoni Elles and Wood, Mon. British Grapt., Pal. Soc, 1903,p. 51 (gen. ref.).Canadian (Levis, Clonograptus zone): Three miles above River Ste. Anne,Quebec.HOLOMETOPUS Angelin. Genotype: H. limbatus Angelin.Holometopus Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p. 58.?Zittel,Handb. Pal., 2, 1885, p. 602.?Miller, N. A. Geol. Pal., 1889, p. 550.?Pom-peckj, Beit. Phys.-Oekon. Gesell., Konigsberg, 1890, p. 86.?Beecher, Amer.Jour. Sci., 4th ser., 3, 1897, p. 182.Holometopus angelini Billings.Holometopus Angelini Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 95,fig. 85a, b; p. 281.?Miller, N. A. Geol. Pal., 1889, p. 550, fig. 1013.Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); TableHead, Pistclet Bay, four miles north Portland Creek and Cow Head, New-foundland (Quebec, N. P.).HOLOPEA Hall. Genotype: H. symmetrica HallHolopea Hall, Pal. New York, 1, 1847, p. 169.?Salter, Mem. Geol. Surv. GreatBritain, 3, 1866, p. 346; ibid., 2d ed., 1881, p. 553; Cat. Camb. and Sil. Foss.,1873, p. 69.?Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, p. 119.?Lind-strom, Kongl. Sven. Vet.-Akad. Handl., 19, No. 6, 1881, p. 187.?Zittel,Handb. Pal., 2, 1882, p. 188.?Miller, N. A. Geol. Pal., 1889, p. 405.?Koken,Neues Jahrb. f. Min., Geol. Pal., 6, Beilage-Band, 1889, p. 423; Die Leit-foosilien, Leipzig, 1896, p. 400; Bull, de I'Acad. Imp. Sci. St. Petersburg, 7,1897, p. 193.?Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1064.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 949.?Grabauand Shimer, N. A. Index Fossils, 1, 1909, p. 676.Holopea ^\'hitfield (part). See Plethospira Ulrich.Holopea ampla Ulrich and Scofield.Holopea ampla Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1065, pi.79, figs. 22-25.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 676, fig.941.Black River (Platteville): Cannon Falls, ^linnesota; Mineral Point and Beloit,Wisconsin.Cotype.?C&t. No. 45837, U.S.N.M.84243??Bull. 92?15 40 626 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Holoppa antiqua (Vanuxem).Littorina antiqua Vanuxcin, Xat. Hist. New York, Geol., 3, 1842, p. 112, fig. 4. ? Hall, ibid., 4, 1843, p. 142, fig. 4; tab. ill. 26, fig. 4.?Mather, ibid., 1, 1843,p. 349, fig. 4.?Owen. Amer. Jour. Sci. Arts, 2d ser., 1, 184G, p. 47, fig. 4.?Emmons, Man. Geol., ISGO, p. 133, fig. 102.?Lincklaen, 14th Rep. New YorkState Cab. Nat. Hist., 1861, p. 58, pi. 9, fig. 4.Holopea antiqua Hall. Pal. New York, 3, 1859, p. 294, pi. 54, figs. 2a-b, 3a-b.?Lesley, Geol. Surv-. Penns>-lvania, Rep. P4, 1889, p. 283, fig.?Weller, Geol.Surv." New Jersey, Pal., 3, 1903, p. 264, pi. 24, figs. 15, 16.?Grabau andShimer, N. A. Index Fossils, 1, 1909, p. 677, fig. 944.Manlius or Keyser: Schoharie, Litchfield, etc., New York; New Jersey.Holopoa antiqua pervetusta Hall.Holopea antiqua var. pervetusta Hall, Pal. New York, 3, 1859, p. 295, pi. 54, figs.4, 5.?Grabau, Michigan, Geol. Surv., Geol. Ser., 1, 1909, p. 178, pi. 28, figs.4-5.Holopea pervetusta Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 677, fig.945.Helderbergian (Manlius or Keyser): New York.Upper Monroan (Amherstburg) : Detroit River region, Michigan.Holopea appressa Ulrich and Scofield.Holopea appressa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2. 1897, ]). 1065,pi. 79. figs. 7-10.Trenton: Goodhue County, Minnesota (Prosser); Burgin, Kentucky.Cotypes.?Cat. No. 45838, U.S.N.M.Holopea arctlca Schuchcrt.Holopea arctica Schuchert, Proc. U. S. Nat. Mus.,22. 1900. p. 168, pi. 12, figs.14-16.Mohawkian: Head of Frobisher Bay, Baffin Land.Cotypes?C&t. No. 28190, U.S.N.M.HoLOPE.\ ARENARiA Whitfield. See Plethospira arenaria.Holopea cassima V.'hitfield. See Plethospira ca?sina.Holopea chlcagoensls Winchell and Marcy.Holopea chicagoensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865.p. 99, pi. 2, fig. 18.Niagaran (Racine): Chicago, Illinois.Holopea conclnnula Ulrich and Scofield.Holopea concinnula Ulrich and Scofield, Geol. Minnetsota, 3, pt. 2, 1897, p. 1066,pi. 79, fig. 6.Black River (Platteville): Beloit, Wisconsin.Plastofijpe.?Cat. No. 46531, U.S.N.M.Holopea oonoidea (Hall).Murchi.?onia? conoidea Hall, Pal. Ni'W York, 2, 1852, p. 13, pi. 4, fig. 7.Holopea conoidea ^^'hitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, j)t. 2,1899, p. 164 (r^cn ref.).Upper Medinan; Lockport. Nt-w York.Holopea diliicula (Hull).Turbo dilucula Hall, Pal. New York. 1. 1S17. p. 12, pi. 3, fig. 7.?Cleland, Bull.Amer. Pal., 4, 1903, p. 14.Holopoa dilucula Miller, N. A. Geol. Pal., 1889, p. 405, fig. 678.Ozarkian (Little Falln): Little Falls, etc., New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 627Holopea? elongata Hall.Holopea? elongata Hall, Pal. New York, 3, 1859, p. 295, pi. 54, figs. 6, 7.Cayugan (Manlius): Schoharie, Manlius, etc., New York.Holopea excelsa Ulrich and Scofield.Holopea excelsa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1067, pi. 79,figs. 11 and 12.Trenton (Prosser): Wykoff, Sumner, and Hader, Minnesota.Cotypes.?Q&t. No. 45839, U.S.N.M.Holopea gracia Billings.Holopea Gracia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 159 (adv.sheets, 1862).?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 72, pi. 3,fig. 17; Quart. Jour. Geol. Soc. London, 31, 1875, p. 549, pi. 26, fig. 17.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 18, pi. 3, fig. 4;ibid., 3, pt. 2, 1895, p. 95, pi. 14, fig. 3.Niagaran (Guelph) : Gait, Ontario.Holopea grandis Calvin.Holopea grandis Calvin, Bull. Lab. Nat. Hist. State Univ. Iowa, 1, 1890, p. 177,pi. 3, figs. la-b.Niagaran: Monmouth, Iowa. \Holopea guelphensis Billings.Holopea Guelphensis Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 343,fig. 351; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 159 (adv. sheets, 1862), fig.143.?Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 343, pi. 15 (6),fig. 18 (extras, 1865); rev. ed., 1870, p. 391, pi. 15, fig. 18.?Nicholson, Quart.Jour. Geol. Soc. London, 31, 1875, p. 549, pi. 26, fig. 18; Rep. Pal. Prov.Ontario, pt. 2, 1875, p. 72, pi. 3, fig. 18.?Chamberlin, Geol. Wisconsin, 1,1883, p. 193, fig.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895,p. 95.Niagaran (Guelph): Gait, etc., Ontario; Wisconsin.Holopea liarmonia Billings.Holopea harmonia Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 168, fig. 142(adv. sheets, 1862).?Hall, 20th Rep. New York State Cab. Nat. Hist., 1868,p. 342, rev. ed., 1868 (1870), p. 391.?Koken, Neues Jahrb. Min., Geol. Pal., 6,Beilage-Band, 1889, p. 423.?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3,pt. 2, 1895, p. 94.Niagaran (Guelph): Gait, etc., Ontario; Wisconsin.Holopea harpa (Hudson).Straparollina harpa Hudson, Bull. New York State Mus., 80, 1905, p. 292, pi. 5,figs. 4, 5.Holopea harim Raymond, Ann. Carnegie Mus., 4, 1908, \). 212, pi. 53, fig. 13;pi. 55, figa. 16, 17.Chazyan (Valcour): Valcour Island, New York.Holopea hubbardl Miller.Holopea hubbardi Miller, N. A. Geol. Pal., Ist App., 1892, p. 694, fig. 1255; 18thAnn. Rep. Indiana Dep. Geol. Nat. Res., p. 318, pi. 9, figs. 39, 40 (adv.sheets 1892).?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res., Indiana, 1908,p. 904, pi. 40, figs. 11, 11a.Richmond (Whitewater-Saluda): Madison, Indiana.Holopea hud.soni Raymond. See Trochonema hudsoni. 628 BULLETIN r>2, UNITED STATES NATIONAL MUSEUM.Holopea Incerta Foerete.Holopea incerta Foerete, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, ]>. 1.19, pi. 1,fig. 4.Trenton (Upper): Near Rogers Gap, Kentucky.Holopea Insignis Ulrirh and Scofield.Holopea insignis Ulrich and Scofield, Geol. Minnesot^i, :',, ])t. 2, 1897, ]>. lOG."), pi. 79,figs. 1-5.Black River: Minneapolis, Cannon Falls, and Faribault, Minnesota ( Platteville);Lincoln County, Missouri (Auburn).Cotypes.?Cat. Nos. 45840, 45841, U.S.N.M.Holopea lavinla Billings.Holopea Lavinia Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 28(adv. sheets 1862).Trenton: Township of Admaston, Canada.Holopea leio.soma Billings.Holopea leiosoma Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 187, fig. 168.Ozarkian ? (Le\-is?erratic): Point Levis, Quebec.Holopea magnlventra \Miitfield.Holopea magnivent.'-a \\Tiitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878,p. 83; Geol. Wisconsin, 4, 1882, p. 316, pi. 24, figs. 2, 3.Niagaran (Guelph): Carlton, Wisconflin.Holopea niedlocrl.s (Billings).Cyclonema mediocris Billings, Cat. Sil. Fobs. Anticoeti, Geol. Surv. Canada, 1866,p. 56.Anticostian (Jupiter River): Four miles west of Southwest Point, Anticosti.Holopea microclathuata Hudson. See Gyronema microclathratura.Holopea minuta Savage.Holopea minuta Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 102, pi. 5, fig. 30.Upper Medirian (Edgewoodj: Near Edgewood, Missouri.Holopea nana Meek. See Cyclora minuta.Holopea nashvillensls Ulrich.Holopea nashvillensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, ]). 1068.Trenton (Catheys): Nashville, Tennessee.Uolotype.?Cait. No. 45842, U.S.N.M.Holopea nereis Billings.Holopea Nereis Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1S65, p. 27 (adv.sheets 1862).Black River (Leray): Pauquettes Rapids, Ottawa Kivor, nt-ar L'Original, Ottawa,and Island of Montreal, Canada.Holopea niagarensls Wincheil and Many.Holopea niagarensis Wincholl and Marcy, Mem. Boston, Soc. Nat. Hist., 1, 1865,p. 99, pi. 2, fig. 17.Niagaran (Racine): Chicago, Illinois.Holopea obesa Wliitfield. See Sinuopea obeaa.Holopea ol)li(|ua Hall.Holopea obliqua Hall, Pal. New York, 1, 1847, p. 170, pi. 37, figs. 2a-Tnond, Zittel-Eastman Textb. Pal., 1913, p. 724.Trimerus Green, Tril. Xorth America, 1832, p. 81.?Salter, Mou. British Tril., Pal.Soc, 1865, p. 104.?Zittel, Handb. Pal., 2, 1885, p. 605.?Koken, Die Leit-lossilien, Leipzig, 1896, p. 23.?Clarke, Arch. Mus. Xac. Rio de Janeiro, 9,1890, p. 10, footnote.?Raymond, Zittel-Eastman Textb. Pal., 1913, p. 724.Dipleura Green, Mon. Tril. Xorth America, 1832, p. 78.?Salter, Mon. BritLshTril.,Pal. Soc, 1865, p. 105.?Zittel, Handb. Pal., 2, 1885, p. 605.?Koken, DieLeitfossilien, Leipzig, 1896, p. 23.?Beechcr, Amer. Jour. Sci., 4th ser., 3,1897, p. 105, pi. 3, fig. 27.?Clarke, Arch. Mus. Xac. Rio de Janeiro, 9, 1890,p. 10, footnote.?Raymond, Zittel-Eastman, Textb. Pal., 1913, p. 724.Brongniartia Eaton, Geol. Textb., 1832, p. 32, pi. 2, fig. 20; Amer. Jour. Sci., 22,1832, p. 165.?Edwards, Hist. Nat. d. Crust., 3, 1840, p. 346.?Salter, Mon.British Tril., Pal. Soc, 18G5, p. 104.?Zittel, Handb. Pal., 3, 1885, p. 605.?Koken, Die Leit fossil ien, Leipzig, 1896, p. 23.Brongniatia Green, Mon. Tril. North America, 1832, p. 90.Ho.MALONOTUs ATL.vs Casteluau. See Homalonotus delphinocephalus.Homalonotu.s? bistrami Hoek.Homalonotus bistrami Hoek, Neues Jahrb. Min., Geol. Pal., 34, 1912, p. 249, pi.8, figs. 19, 20.Ordovician: Cochabamba, Bolivia.Homalonotus dawsonl Hall.Homalonotus dawsoni Hall, Canadian Nat. Geol., 5, 1860, p. 155, fig. 17.?Dawson,Acad. Geol., 2d ed., 1808, p. G06, fig. 214; Canadian Xat. Geol., 5, 1860, p.298, fig. 1; Acadian Geol., Suppl. Chap., 1860, p. 57, footnote; p. 68, fig. (J3;ibid., 2d ed., 1878, p. 77, fig. 14; Geol. Mag., dec. 2, 4, 1877, p. 57, fig. 2.Silurian (Moydart, Stonehouse): Arisaig, Xova Scotia.Homalonotus delphinocephalus (Green).Trimerus delphinocephalus Green, Mon. Tril. Xorth America, 1832, p. 82, pi. 32,fig. 1.?Harlan, Trans. Geol. Soc. Pennsjlvania, 1, pt. 1, 1834, p. 105. ? Raymond. Zittcl-EiU'tman Textb. Pal.. 1913, p. 724, fig. 1402.Brongniartia platycephala Harlan, Trans. Geol. Soc Pennsylvania. 1, j)t. 1, 18.34.p. 105.Homalonotus atlas Castelnau, Ess. Syst. Sil. I'Amer. Sept., 1843, p. 20, pi. 4, fig. 4.Homalonotus giganteus Castelnau, ibid., p. 20, pi. 3, fig. 1.Homalonotus herculaneus Castelnau, ibid., p. 20, pi. 4, fig. 5.Ogygiea latLssimus Eaton, Amer. Jour. Sci. and Arts, 21, 1832, p. 136.Homalonotus delphinocephalus Murchison, Sil. Syst., 1839, p. 651.?Hall, Geol.New York, pt. 4, 1843, p. 103, fig. 34, tab. org. rem., 11, fig. 1.?Owen, Amer.Jour. Sci. Arts, 48, 1845, p. 307, pi. .34. p. 311.?Hall, Pal. Xew York, 2, 18.52,p. 104, pi. 31, figs. 5a-b; p. 300, pi. 68, figs. 1-14.?Billings, Canadian i\.it.,Geol., 1, 1856, p. 320, fig. 10.?Linrklaon, 14th Rep. Xew York SUite Cab.Nat. Hist., 1861, pi. 8, fig. 4.?Hall, Trans. Albany Inst., 4, 18?).3, p. 227.?BillinjTs, Geol. Canada, Geol. Surv. Canada, 1863, p. 319, fig. 339.?Chapman,Canadian Jour., n. s., 8, 1863, p. 32, fig. 148; p. 212, fig. 222; Expos. Min. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 633Homalonotus delphinocephalus?Continued.Geol. Canada, 1864, p. 140, fig. 148; p. 184, fig. 222.?Hall, 28th Rep. NewYork State Mus. Nat. Hist., 1877, doc. ed., pi. 32, figs. 17, 18; mus. ed., 1879,p. 187, pi. 32, figs. 17, 18; 11th Rep. Dep. Geol. Nat. Hist. Indiana, 1882, p.332, pi. 34, figs. 17, 18.?Miller, N. A. Geol. Pal., 1889, p. 550, fig. 1014.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 288, fig.?Grabau, Bull.Buffalo Soc. Nat. Hist., 7, 1901, p. 221, fig. 153; Bull. New York State Mus.Nat. Hist., 45, 1901, p. 221, fig. 153.?Foerste, Cincinnati Soc. Nat. Hist.,Jour. 21, 1909, p. 34, pi. 2, figs. 19a-c.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 317, fig. 1630.Upper Clinton: Niagara County, etc., New York; Pennsylvania; Maryland;Ontario (Rochester); Lewis County, Kentucky (West ITnion); ?Waldron,Indiana (Waldron).Plastotype.?Cat. No. 4910, U.S.N.M.Homalonotus giganteus Castelnau. See Homalonotus delphinocephalus.Homalonotus herculaneus Castelnau. See Homalonotus delphinocephalus.Homalonotus linares Salter.Homalonotus Linares Salter, Quart. Jour. Geol. Soc. London, 17, 1861, i). 66, pi. 5,figs. 1, 2.Silurian: Mount Illampu, Bolivia.Homalonotus trentonensis Simpson.Homalonotus trentonensis Simpson, Trans. Amer. Pliil. Soc, n. s., 16, 1890,p. 460, fig. 31.Brongniartia trentonensis Collie, Bull. Geol. Soc. Amer., 14, 1903, p. 418, pi. 59,figs. 1, 2.Trenton: Reedsville, Bellefonte, etc., Pennsylvania.HOMOCRINUS Hall. Genotype: H. parvus Hall.Homocrinus Hall, Pal. New York, 2, 1852, p. 185; ibid., 3, for 1859, 1861, p. 102.?Meek and Worthen, Geol. Sm-v. Illinois, 2, 1866, p. 182.?Zittel, Handb. Pal.,1, 1879, p. 361.?Wachsmuthand Springer, Proc. Acad. Nat. Sci. Philadelphia,1879, pp. 285, 300 (Rev. Pal., pt. 1, pp. 62, 77); ibid., 1886, p. 115; ibid., 1890,p. 380; Amer. Jour. Sci., 3d ser., 26, 1883, p. 376, fig. 6.?Miller, N. A. Geol.Pal., 1889, p. 255.?Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 324,pi. 14, fig. 16; Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893, p. 101; Geol.Mag., dec. 4, 6, 1899, p. 33, fig. 7; Treatise on ZooL, pt. 3, Echinoderma,London, 1900, p. 179, fig.?Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900,p. 155.?Zittel, Grundzuge Pal., 1, 1910, p. 152.?Slocom, Field ColumbianMus., 2, Geol. Ser., 1908, p. 289, fig. 7.?Kirk, Proc. U. S. Nat. Mus., 46, 1914,p. 473.?Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913. p. 217.Homocrinus? ^emulus Wachsmuth and Springer. See Cyathocrinus? semulus.Homocrinus alternatus Hall. See Dendrocrinus alternatus.Homocrinus ancilla (Hall).Dendrocrinus ancilla Hall, Trans. Albany Inst., 10, 1883, p. 65 (adv. slieets,1879, p. 9); nth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 271, pi. 15,fig. 19.Homocrinus ancilla Wachsmuthand Springer, Proc. Acad. Nat. Sci. Philadelpliia,1886, p. 144 (Rev. Pal., pt. 3, see. 2, p. 220).?Slocom, Field Columbian Mus.,2, 1908, p. 289, pi. 85, figs. 9-11.Niagaran: Waldron, Indiana (Waldron); near Lemont, Illinois (Racine). 634 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.H0MOCRINU8 ANQUSTATU8 Meek and Worthen. See Dendrocrinus angustatus.HoMocRiNua coNSTRiCTUS Hall. See Ohiocrinus constrictus.Homocrlnus cyllmlrlous Ilall.Homocrinus cylindrioi;s Ilall, Pal. New York, 2, 1852, p. 180, pi. 41, figs. 2a-c,3a-c.?Slocom, Field Columbian Mus., 2, Geol. Ser., 1908, p. 291, pi. 84,figs. 14, 15.Niagaran: Lockport, New York (Rochester); near Lemont, Illinois (Racine).Homocrinus gracilis Hall. See Dendrocrinus gracilis.Homocrinus laxus Hall. See Ohiocrinus laxus.Homocrinus nucleus Wachsmuth and Springer. See Botryocrinus nucleus.Homocrinus parvu.s Hall.Homocrinns parvTjs Hall, Pal. New York, 2, 1852, p. 185, pi. 41, figs. la-f.?Kirk,Proc. U. S. Nat. Mus., 46, 1914, p. 474, pi. 42, fig8.1-8.Clinton (Rochester): Lockport, New York.Homocrinus polydactylus Shumard. See Cupulocrinus polydactylus.Homocrinus polyxo Wachsmuth and Springer. See Botryocrinus polyxo.Homocrinus scoparius Hall. See Lasiocrinus scoparius.HoMocYSTis Carpenter. See Cheirocrinus Eichwald.HoMocYSTiTES Barrande. See Cheirocrinus Eichwald.HOMOCOSFIRA Hall and Clarke. Genotype: Rhynchospira evax Hall.Homceospira Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 112; 13th Ann.Rep. New York State Geol., 1895, p. 792.?Schu chert, Zittel-Eastman Te.xtb.Pal., 1, 1900, p. 337; 2d ed., 1913, p. 414.?Grabau, Bull. Buffalo Sor. Nat.Sci., 7, 1901, p. 200; Bi 11. New York State Mus., 45, 1901, p. 200.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 344.Homceospira aprlniforml.s Hall.AtrA'pa aprinis Ilall (not Vemeuil), Pal. New York, 2, 1852, p. 280, pi. 57,fig. 7.Rhynchospira? aprinis Hall, 12th Rep. New York State Cab. Nat. Hist., 1859,p. 77.Rhynchospira a|)riniformis Uall, Pal. New York, 3, 1859, p. 485.RhjTichonella aprinis Miller, N. A. Geol. Pal., 1889, p. 367.Homopospira apriniformis Ilall and Clarke, Pal. New York, 8, pt. 2, 1893, p. Ill,pi. 83, figs. 24, 25.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 200,fig. 121; Bull. New York State Mus., 45, 1901, p. 200, fig. 121.Clinton (Rochester): Lockport, New York.Homceospira beecherl Foorste.Homceospira beecheri Foerste, Jour. Geol., 11, 1903, p. 709; Bull. S< i. Lab.Denison Univ., 14, 1909, p. 90, pi. 1, figs. 8A, B.Niagaran (Brown.iport): Brownsport Furnace, Decatur County, Tennessee.Honi-pa callosa Ulrich, Geol. Minnesota, 3, 1893, p. 243, pi. 20, figs. 15-21.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, figs. 139, 140(p. 576).Trenton: Burgin and Frankfort, Kentucky (Wilmore); Cannon Falls, Minnesota(Prosser).Cotypes.-^at. Nos. 43578, 43579, U.S.N.M.Homotrypa clnclnnatiensls Bassler.Homotrypa cincinnatiensis Bassler, Proc. U. S. Nat. Mus., 26, 1903. p. 576. pi. 21,figs. 4-10.Maysville (Fairmount): Cincinnati, Ohio, and vicinity; Mays^-ille and McKin-ney, Kentucky.Cotypes.?C&t. No. 41744, U.S.N.M.Homotrypa commiinl.s Bassler.Ilomotrj-pa communis Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 581, pi. 23,figs. 1-4.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,p. 839, pi. 17, figs. 1-ld; pi. 29, fig. 12.Richmond (^Vaynes^-ille): Oregonia, Waynesville, etc., Ohio; Indiana; Kentucky.Colijpcs.?Cixi. No. 41755, U.S.N.M.Homotrypa? oonfluens (Foerste).Monotrj-pella confluons Foerste, Bull. Sci. Lab. Denison Univ., 2. 1887, p. 172;ibid.. 3, 1888, pi. 16, fig. 4.Homotrypa confluens Foerste, Geol. Sur\'. Ohio, 7, 1895, p. 600.Upper Medinan (Brassfield): Dayton, Ohio.Homotrypa constell.'vriformis Cumings. See HomotrjT^a ramulosa.Homotrypa ciirvata Ulrich.IIomotr\-pa curvata Ulrich, Jour Cincinnati Soc. Nat. lli.?t., ?'>, 1882. p. 242, pi.10. figs. 7-7d.?SimpsoTi, 14th Ann. Rep. State Geol. New York for 1894, 1897,figs. 137. 1.38 (p. .576^?Bassler. Proc. U. S. Nat. Mus.. 26. 1903. p. 575.? BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 637Homotrypa curvata?Continued.Grabau and Sliimer. N. A. Index Fossils, 1, 1907, p. 129.?Cumings, 32d Ann.Rep. Dept. Geol. Nat. Res. Indiana, 1908, p. 840, pL 17, figa. 3-3b,- pi. 29,fig. 13.Monticulipora curvata J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, p. 71.Maysville (Fairmount) : Cincinnati, Ohio, and vicinity.CotT/pes.?Cat. No. 41729, U.S.N.M.Homotrypa curvata praeclpta Bassler.HomotrjT^a curvata var. praecipta Bassler, Proc. V. S. Nat. Mus., 26, 1903, p.575, pi. 23, fig. 15.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,p. 841, pi. 18, fig. 4; pi. 30, fig. 7, 7a.Eden (Southgate) : West Covington, Kentucky.Holotype.?C&t. No. 41735, U.S.N.M.Homotrypa cyllndrica Bassler.Homotrj-pa cylindrica Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 585, pi. 22,figs. 8-13.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.842. pi. 17, figs. 4, 4a; pi. 29, fig. 14.Richmond (WTiitewater): Richmond and Versailles, Indiana; Oxford, Ohio.Cotypes.?G&t. No. 41758, U.S.N.M.Homotrypa dawsoni (Nicholson).Monticulipora (Heterotrypa) Dawsoni Nicholson, Genus Monticulipora, 1881,p. 141, pi. 5, figs. 3-3f.Monticulipora dawsoni Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 241. ? James and James, ibid., 11, 1888, p. 15.?J. F. James, ibid., 18, 1895, p. 68.Homotrypa dawsoni Nicklea and Bassler, Bull. U. S. Geol. Surv., 173,1900, p.291.?Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 581, pi. 25, figs. 9,10.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 842, pi.17, figs. 5, 5a; pi. 30, fig. 1.Richmond (Waynesville): Waynesville, Clarkeville, etc., Ohio; Versailles, In-diana.Plesiotypes.?G&t. No. 41749, U.S.N.M.Homotrypa diimosa Bassler.Homotr>T)a dumosa Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 576, pi. 20, fig. 1;pi. 21, figs. 1-3.Maysville (Fairmount): Covington, Kentucky, and vicinity.Cotypes.?Gat. No. 41741, U.S.N.M.Homotrypa exilis Ulrich.Homotrj-pa exiUs Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1886,p. 80; Geol. Minnesota, 3, 1893, p. 236, pi. 19, figs. 10-16.Black River (Decorah): Minneapolis, Minnescta.CoLypes.?Gat. No. 43574, U.S.N.M.Homotrypa flabellarls Ulrich.Homotrypa flabellaris Ulrich, Geol. Surv. Illinois, 8, 1890, p. 411, pi. 32, figs.3-3c.?Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 580.?Grabau and Shimer,N. A. Index Fossils, 1, 1907, p. 129.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 845, pi. 18, figs. 1-lb; pi. 30, fig. 2.Monticulipora flabellaris J. F. James, Jour. Cincinnati Soc. Nat. His':., 18, 1895,p. 75.Maysville (Richmond): Wilmington, Illinois (Femvale); Ohio; Indiana; Ken-tucky; Tennessee.Figxured sections of cotypes.?Cat. No. 43767, U.S.N.M. 638 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Homotrypa flabellarls frondosa Bassler.Homotrypa fi'ondoea Cuminga (not Chsetetes frondosus Edward and Haime, norMonticulipora frondoaa D'Orbigny), Amer. Geol., 29, 1902, p. 208, pi. 10, figs.11, 12; pi. 11, figs. 2, 5; pi. 12, fig. 1.?Bassler, Proc. U. S. Nat. Mus., 26,1903, p. 579.Homotrypa flabcllaris var. frondosa Cumings, 32d Ann. Kep. Dep. Geol. Nat.Res. Indiana, 1908, p. 84G, pi. 18, figs. 3, 3b; pi. 30, fig. 3.Riclimond (Aruhoim): Ilarmans Station, Indiana; Ohio.Homotrypa flabellarls splnlfera Bassler.Homotrj-pa flabcllaris var. spinifera Bassler, Proc. U. S. Nat. Mus., 26, 1903, p.580, pi. 21, figs. 11-15.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indi-ana, 1908, p. 847, pi. 18, fig. 2.Maysville and Richmond: Cincinnati, Ohio, and vicinity (Fairmount); Rich-mond, Indiana; Oxford, etc., Ohio (Richmond).Hololype.?C&t. No. 41778, U.S.N.M.Homotrypa frondosa Cuminga. See Homotrj'pa flabellarls frondosr,.Homotrypa gelasinosa Ulrich.Homotrj'pa gelasinosa Ulrich, Geol. Surv. Illinois, 8, 1890, p. 410, pi. 32, figs.2-2d.?Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 587.Monticulipora gela-sinosa J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894,p. 202.Richmond (Femvale): Wilmington. Illinois.Figured sectionfl of holotype.?C&i. No. 43768, U.S.N.M.Homotrypa glabra Cumings and Galloway.Ilomotrypa glabra Cumings and Galloway. 37th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1913, p. 78, pi. 11, figs. 1-ld.'Eden (McMicken): Big Four Railroad, near Guilford, Indiana.Homotrypa grandls Bassler.Homotrj-pa grandis Bassler, Proc. U. S. Nat. Mus.. 26, 1903, p. 578, pi. 20, figs. 7-10.Maysville (Leipers): Near Goodlettsville, Davidson County, Tennessee.Coiypcs.?Cat. N6. 41764, U.S.N.M.Homotrypa insionis Ulrich. See Homotrypa subramosa-insignis.Homotrypa? Intcrcalarls Ulrich.Ilomotrypa? intorcalaris Uhich, Geol. Minnesota, 3, 1893, p. 238, fig. 13.Black River (Decorah): St. Paul and Minneapolis, Minnesota.Cotypes.?Cvii. No. 43577, U.S.N.M.Homotrypa llbana Bassler.Homotrypa libana Baasler, Proc. U. S. Nat. Mus., 26, 1903, p. 578, pi. 22, figs. 1-3.Richmond (Amheim): Lebanon, Ohio.Bolotype.?QaX. No. 34329, U.S.N.M.nomotryi)a mInn??sotensIs Ulrich.Homotrypa minuesotensis Ulrich, 14tli Ann. Rep. Geol. Nat. IILit. Surv. Minne-sota, 1886, p. 79; Geol. Minnesota, 3, 1893, p. 235, pi. 19, figs. 1-9.?Grabauand Shimer, N. A. Index Fossils, 1, 1907, p. 129.?Sardeson, Jour. Geol., 9,1901, p. 12.Black River (Decorahj: MiimeapolLs, St. Paul, Fountain, etc., ilinneeota;Decorah, Iowa; Kentucky; Tennessee.Colypet.?Q&t. Nos. 43571, 43572, U.S.N.M. BIBLIOGRAPHIC LIST OF GENFRA AND SPECIES. 639Homotrypa minnesotensis montifera Ulrich.Homotrypa minnesotensis var. montifera Ulrich, Geol. Minnesota, 3, 1893, p. 236,pi. 19, fig. 3a.Black River (Decorah): St. Paul, Minnesota.Holotype?Csit. No. 43573, U.S.N.M.Homotrypa nicklesi Bassler.Homotrypa nicklesi Bassler, Proc. U. S. Nat. Mus., 2G, 1903, p. 5SG, pi. 22, figs.4-7.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 847,pi. IS, figs. 6, 6a; pi. 30, fig. 4.Richmond: Raywick, Kentucky.Cotypes.?Cat. No. 34328, U.S.N.M.Homotrypa nitida Bassler. See Homotrypa ramulosa.Homotrypa nodulosa Bassler.Homotrypa nodulosa Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 582, pi. 23, figs.5-11; pi. 25, fig. 15.Richmond: Hanover, Ohio (Waynesville) ; Richmond, Indiana (Whitewater).Cotypcs.?Cat. No. 41753, U.S.N.M.Homotrypa obliqua ULrich.Homotrypa obliqua Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 243,pi. 10, figs. 6, 6b.?Miller, N. A. Geol. Pal., 1889, fig. 489 (p. 310).?J. F.James, Jour. Cincinnati Soc. Nat. Hist., 18, 1896, p. 124.?Bassler, Proc. U. S.Nat. Mus., 26, 1903, p. 575, pi. 23, figs. 12-14.?Grabau and Shimer, N. A.Index Fossils, 1, 1907, p. 129.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 848, pi. 19, figs. 1-lb; pi. 30, fig. 6.Maysville (Fairmoimt-Corryville) : Cincinnati, Ohio, and vicinity.Eolotype and plesiotypes.?Cat. Nos. 43671, 41736, U.S.N.M.Homotrypa pulchra Bassler.Homotrypa pulchra Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 577, pi. 20, figs.11-14.Maysville (Mount Auburn) : Cincinnati, Lebanon, etc., Ohio.Cotypes.?Cat. No. 41747, U.S.N.M.Homotrypa ramulosa Bassler.Homotrypa ramulosa Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 585, pi. 25, figs.1-4.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 849,pi. 19, figs. 2-2b; pi. 30, fig. 8.Homotrypa constellariformis Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 839, pi. 17, figs. 2-2b.Homotrypa nitida Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 586, pi. 20, fig. 15;pi. 25, figs. 5-8.?Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana,1908, p. 848, pi. 18, figs. 5, 5a; pi. 30, figs. 5, 5a.Richmond CWTiitewater) : Versailles, Weisburg Station, Osgood, etc., Indiana.Cotypes.?Cat. Nos. 41771, 41760, U.S.N.M.Observation.?H. nitida, H. ramulosa, and H. constellariformis have beenfound to represent the same species, the first being based on the immaturebranches, the second on the main portions of the zoaria, and the third on the bestdeveloped parts.Homotrypa rlchmondensls Bassler.Homotrypa richmondeusis Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 582, pi. 24,figs. 1-4. 640 BULLETIN 'J2, UNITED STATES NATIONAL MUSEUM.Homotrypa richinondensis?Continued.Richmond ("Whitewater): Richmond and Versailles, Indiana; Hanover, Oxford,etc., Ohio.Cotypes?Cat. No. 41784, U.S.N.M.Homotrypa separata Ulrich.Homotrj'pa separata Ulrich, Geol. Minnesota, 3, 1893, p. 237, pi. 19, figs. 17-20. ? Bassler, Zittel-Eastman Texb. Pal., 1913, p. 332, fig. 477d.Black River (Decorah): Minneapolis, Chatfield, etc., Minnesota.Jlololype.?Cat. No. 43576, U.S.N.M.Homotrypa? slmilis Foord.Homotrypa similis Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 10, pi. 2,figs. 2-2d.?Ulrich, Geol. Minnesota, 3, 1893, p. 242, pi. 20, figs. 28-33.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 185-187.Trenton: Ottawa, Ontario; St. Paul, Cannon Falls, etc., Minnesota.Middle Ordovician (Wassalem): Uxnorm, near Reval, Esthonia, Russia.Plesiotypes.?Cat. Nos. 43575, 57273, U.S.N.M.Homotrypa solida Nickles and Bassler. See Eridotrypa soUda.Homotrypa spinea Cumings and Galloway.Homotrypa spinea Cumin^rs and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1913, p. 79, pi. 11, figs. 1-lc; pi. 12, figs. 1-ld.Maysville (Mount IIope-Fairmount) : Big Four Railroad, near Guilford, Indiana.Homotrypa splendens Bassler.Homotrypa splendens Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 587, pi. 25, figs.11-14.Richmond (Fernvale): Wilmington, Illinois.Cotypcs.?C&t. No. 41761, U.S.N.M.Homotrypa subramosa Ulrich.Homotrj-pa subramosa Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, p. 81; Geol. Minnesota, 3, 1893, p. 239, pi. 19, figs. 21-28.?Ulrich,Zittel'a Textb. Pal. (Engl, ed.), fig. 45L\-C (not D=Homotrypa separataUlrich) (p. 273).?GraV)au and Shimer, N. A. Index Fossils, 1, 1907, p. 128,fig. 186c.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 332, fig. 477a-c;Bull. U. S. Nat. Mus., 77, 1911, pp. 187-189, figs. 99, 100.Black River (Decorali) and Trenton (Prosser): St. Paul, Minneapolis, etc.,Minnesota; Decorah, Iowa.Middle Ordovician (Kuckers): Reval, Esthonia, Russia.Cotypes and plesiotypes.?Cat. Nos., 43570, 57274, U.S.N.M.Homotrypa .subramosa Inslgnis (Ulrich).Homotryi)a iiisigni.s Ulrich, llth Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1886, p. 82.Homotrj-pa subramosa var. insignis Ulrich, Geol. Minnesota, 3, 1893, p. 239.Trenton (Prosser): St. Paul and Goodhue and Fillmore Counties, Iklinnesota.Decorali, Iowa.Colypes.?Cat. No. 43998, U.S.N.M,Homotrypa tiiberculata Ulrich.Homotrypa tuberiulata Ulrich, Geol. Minnesota, 3, 1893, p. 240, fig. 14.Black River (Decorah): Cannon Falls, Minnesota.Cotypes.?Cat. No. 43580, U.S.N.M. I BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 641Homotrypa worthenl (James).Monticulipora (Monotrypa) wortheni James, Paleontologist, no. 6, 1882, p. 50;no. 7 (1883), pi. 1, fig. 2.Monticulipora wortheni J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, p.207.?James and James, ibid., 10, 1888, p. 184, pi. 11, figs. 3a, b.Homotn-pa wortheni Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 582, pi. 24, figs.10-14.?Cumings, 32d Ann. Kept. Dep. Geol. Nat. Res. Indiana, 1908, p.849, pi. 19, figs. 3, 3c; pi. 30, fig. 9.Richmond (Wliitewater) : Lynchburg, etc.. Ohio; Richmond, etc., Indiana.Plesiotypes.?Cat. No. 41766, U.S.N.M.Homotrypa wortheni intercellata Bassler.Homotrj^pa wortheni var. intercellata Bassler, Proc. U. S. Nat. Mus., 26, 1903, p,584, pi. 24, fig. 17.Richmond (Wliitewater?) : Near Osgood and Versailles, Indiana.Cotypes.?Cat. No. 41768, U.S.N.M.Homotrypa wortheni prominens Bassler.Homotrypa wortheni var. prominens Bassler, Proc. U. S. Nat. Mus., 26, 1903, p.584, pi. 24, fig. 15, 16.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 851, pi. 30, fig. 10.Richmond (Elkhorn): Near Richmond, Indiana.Cotype?.?Cat. No. 41767. U.S.N.M.HOMOTRYPELLA UMch. Genotype: Homotrypella instabilis Ulrich.Homotrypella Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 1888, p.83.?Miller, N. A. Geol. Pal., 1889, p. 310.?Uhich, Geol. Surv. Illinois, 8,1890, pp. 370, 412; Geol. Minnesota, 3, 1893, p. 228.?Simpson, 14th Ann.Rep. State Geol. New York for 1894, 1897, p. 586.?Nickles and Bassler, Bull.U. S. Geol. Surv., 173, 1900, p. 29.?Ulrich and Bassler, Smiths. Misc. Coll.Quart., 47, 1904, p. 21.?Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 189;Zittel-Eastman Textb. Pal., 1913, p. 332.Peronoporella Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1913, p. 81. (Genotype: P. dubia Cumings and Galloway.)Homotrypella contexta Ulrich.Homotrypella contexta Ulrich, Geol. Surv. Illinois, 8, 1890, p. 412, pi. 32, figs. 5-5b.Monticulipora contexta J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18,1895, p. 74.Richmond (Fernvale): Wilmington, Illinois.Fragment of holotype.?Cat. No. 43763, U.S.N.M.Homotrypella dubia (Cumings and Galloway).Peronoporella dubia Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1913, p. 82, pis. 15, 16, 17.Maysville (Bellovue) and Richmond (Amheim): Big Four Railroad, near Har-mon Station, Indiana.Homotrypella gracilis Ulrich. See Bythopora gracilis.Homotrypella granulifera (Ulrich).Chaetetes granuUferus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 128,pi. 12, figs. 9-9b.Batostomella granuKfera Ulrich, ibid., 5, 1882, p. 141.Homotr\'pella granulifera Miller, N. A. Geol. Pal., 1889, p. 310.84243??Bull. 92?15 41 642 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Homotrypella grariulifera?Continued.Monticulipora (Fistulipora) granulifera J. F. James, Jour. Cincinnati Soc. Nat.Hist., IS, ]89G, p. 120.Trenton (Wilmore): Burgin and Frankfort, Kentucky.Cotypea.?Cat. Xo. 43G69, U.S.X.M.Homotrypella hospltalis (Nicholson).Monticulipora (Prasopora) Selw>'nii var. hospitalis Nicholson, Genus Monticuli-pora, 1881, p. 209, fig. 45.Monticulipora hospitalis James and James, Jour. Cincinnati Soc. Nat. Hist., 11,1888, p. 26.Prasopora Selwynii var. hospitalis Nicholson in Steinmann, Neues Jahrb. f. Min.,Geol. Pal, 1, 1882. pi. 4. fig. 11.Prasopora hospitalis Ulrich. Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 237. ? Nicklcs and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 371.?NicklcP.Bull. Kentucky Geol. Surv., 5, 1905, p. 57. pi. 3, fig. 10.?Bassler, Proc. U. S.Nat. Mus., 30, p. 49, 1906, pi. 7, figs. 1-3.?Cumings, 32d Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1908, p. 871, pi. 23, figs. 1, lb; pi. 31, fig. 6.Homotr>'pella hospitalis Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 194 (gen. ref.).Monticulipora (Heterotrypa) -winchelli James, Paleontologist, No. 6, 1882, p. 48.Monticulipora winchelli James, Paleontologist, No. 7, 1883, pi. 1, fig. 5; Jour.Cincinnati Soc. Nat. Hist., 18, 1895, p. 87.Richmond: A common species in Ohio, Indiana, Illinois, Kentuck>', Ten-nessee, etc.Homotrypella hospitalis crassa (Ulrich).Atactoporella crassa Ulrich, Geol. Minnesota, 3, p. 225, pi. 10, figs. 18-21.Homotrj'pella hospitalis crassa Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 193-195, figs. 104, 105.Trenton: St. Paul and Cannon Falls, Minnesota (Prosser); West Covington,Kentucky.Middle Ordovician (Wassalem): Uxnorm, near Reval, Esthonia, Russia.Holotype and plesiotype.?Cat. Nos. 43501, 57279, U.S.N.M.Homotrypella Instabills Ulrich.IIomotr\'pella instabilis Ulrich. 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota.1886. p. 83; Geol. Minnesota, 3, 1893. p. 229, pi. 18, figs. 9-20.?Simpson, 14fhAnn. Rep. Stale Geol. New York for 1894, 1897. figs. 168, 169 (p. 586).-Ba.'^slor, Bull. U. S. Nat. Mus., 77, 1911, pp. 189-192, figs. 101, 102.Black River (Docorah): Minneapolis, St. Paul, Cannon Falls, etc., Minnesota.Middle Ordovician: Near Reval, Esthonia, Russia.Cotypes and pksiolypes.?Cat. Nos. 43561, 57275, U.S.N.M.HoMOTnYPELLA MEEKi Ulrich. See Bj-thopora meeki.Homotrypella multiporata Ulrich.ITomotr>pplla multiporata Ulrich. Geol. Minnesota. 3. 1893, p. 230, pi. 18, figs.21.22.Black River (Decorah): St. Paul and Minncapoli.-*, Minnesota.Figured sections of holotype.?C&t. No. 43559, U.S.N.M.Homotrypella miindiila Ulrich.Homotrypella mundula T'lrich. Geol. Minnesota, 3, 1893, p. 232, fig. 12a-c.Trenton (Prosser): Decorah. Iowa; Cannon Falls, Minnesota.Holotype.?C&t. No. 43560, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 643Homotrypella nodosa Ulrich and Bassler.Homotr^'pella nodosa Hayes and Ulrich, U. S. Geol. Surv. Folio 95, 1903, ill.sheet, fig. 14, 15.?Ulrich and Bassler, Smiths. Misc. Coll., Quart., 47, 1904,p. 21, pi. 7, figs. 1-3.Maysville (Leipers): Columbia, Nashville, etc., Tennessee.Cotypes.?Cat. No. 43178, U.S.N.M.Homotrypella norwoodi Nickles.Homotrj-pella norwoodi Nickles, Bull. Kentucky Geol. Surv., No. 5, 1905, p. 45,pi. 1, fig. 9-11.Trenton (Cynthiana?): Near Pleasant Valley, Nicholas County, Kentucky.Homotrypella? ovata Ulrich.Homotrj-pella? ovata Ulrich, Geol. Minnesota, 3, 1893, p. 231, pi. 18, figs. 23-30.Trenton (Prosser) : Cannon Falls and Miimeapolis, Minnesota.Cotypes.?Cat. No. 43562, U.S.N.M.Homotrypella rustica Ulrich.Homotrypella rustica Uhich, Geol. Minnesota, 3, 1893, p. 234, pi. 18, figs. 31-33.Monticulipora (Fistulipora) rustica J. F. James, Jour. Cincinnati Soc. Nat. Hist.,18, 1896, p. 120.Homotrypella cf. rustica Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 851, pi. 19, figs. 5, 5a; pi. 21, fig. 4; pi. 30, fig. 11.Richmond (Maquoketa): Spring Valley, Minnesota.Figured sections of holotype.?Cat. No. 43557, U.S.N.M.Homotrypella? subgracilis Uhich. See Bythopora subgracilis.HoRisTOMA Fischer. See Poleumita Clarke and Ruedemann.HoRMOCERAS GRAciLE Clarke and Ruedemann. See Actinoceras gracile.HoRMOCERAS REMOTisEPTUM Clarke and Ruedemann. See Actinoceras remoti-septum.HoRMOCERAS TENUiFiLUM Clarke and Ruedemann. See Actinoceras tenuifilum.HORMOTOMA Salter.Genotype: H. salteii Ulrich (=Murchisonia gracilis Salter not Hall).Murchisonia (part) of authors.Hormotoma (subgenus of Murchisonia) Salter, Geol. Surv. Canada, Can. Org. Re-mains, dec. 1, 1859, pp. 18, 22.?(Ehlert (subgenus Murchisonia), Extr. Bull.Soc. d'Etud. Sci. d'Angers, 1877, p. 18.?Koken, Neues Jahrb. f. Min., Geol.Pal., 6, Beilage-Bd., 1889, p. 368.?Donald, Quart. Jour. Geol. Soc. London, 51,1895, p. 211; ibid.. 55, 1889, p. 257.?Ulrich and Scofield, Geol. Minnesota,3, pt. 2, 1897, pp. 959, 1012.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res.Indiana, 1908, p. 950.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.648.?Dall, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 525.Hormotoma? aculeata (Billings).Ivoxonema aculeata Billings, Cat. Sil. Foss, Anticosti, Geol. Surv. Canada, 1866,p. 55.Anticostian (Gun River, Jupiter River): Near Chaloupe River, Anticosti.Hormotoma? agills (Billings).Murchisonia agilis Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 235.Hormotoma? agilis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.).Canadian (Quebec?G, H): Cape Norman and Table Head, Newfoundland. 644 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Hormotoma auna (Billings).Murchisonia Anna Billings, Canadian Nat. Geol., 4, 1859, p. 358, figs. 8a-e; GeoLCanada, Geol. Surv. Canada, 1863, p. 119, fig. 32a-f.?Lesley, Geol. Surv.Pennsylvania, Rep. P 4, 1889, p. 424, figs.Hormotoma anna Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref,).Canadian: Mingan Islands, Canada.Hormotoma argylensls (Sardeson).Murchi.sonia argylensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p. 97,pi. 5, figs. 11, 12.Canadian (Shakopee): Near Argyle, Wisconsin; Shakopee and Cannon Falls,Minnesota.Hormotoma? artemesla (Billings).Murchisonia Artemesia Billings, Pal. Foss., 1, 1865, Geol. Surw Canada, p. 345,textiig. 332a, b.Hormotoma? artemesia Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1013 (gen. ref.). ? Bassler, Bull. Virginia Geol. Surv., 29, 1909, pi. 20, figs. 1, 2.Canadian (Beekmantown): Counties of Leeds and GrenviUe, Canada; Virginia,etc.Hormotoma belllcincta (Hall).Murchisonia bellicincta Hall, Geol. Fal. New York, 1, 1847, p. 179, pi. 39, figs,la, b.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 162, pi. 5, figs, la, b, 12.Salter, Quart. Jour. Geol. Soc. London, 15, 1859, p. 380, pi. 13, fig. 11.?Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 183, fig. 177.?Miller,Cincinnati Quart. Jour. Sci., 1, 1874, p. 314.?Nicholson, Rep. Pal. Prov.Ontario, pt. 2, 1875, p. 18, fig. 7a.?Roemer, Leth. geog., 1, Leth. Pal., Atlas,1876, pi. 5, fig. 7.?Walcott, Amer. Jour. Sci. Arts, 3d ser., 35, 1888, p. 237,fig. 2.?Koken, Neues Jahrb. f. Min., Geol. Pal., 6, Beilage Bd., 1889, p. 371.?Lesley, Geol. Surv. Pennsylvania, P 4, 1889, p. 426, figs.?Whiteaves, Pal.Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 123 (loc. occ).Hormotoma l)eUicincta Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, ]>,1017, pi. 70, figs. 15-17.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p.650, fig. 887a.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908,pi. 40, figs. 12, 12a.Trenton: Watertown, Middleville, Trenton Falls, etc.. New York; GoodhueCounty, Minnesota (Prosser).Plesiotypes.^Cat. No. 45850, U.S.N.M. (Ulrich and Scofield).Hormotoma Boylei Donald. See Turritoma boylei.Hormotoma? casslna (^V^litficld).Murchisonia cassina \\'hitfield. Bull. Amer. Mue. Nat. Hist., 9, 1897, p. 179, pi. 1,fig. 7.?Seely, Vermont State Geol. Rep., 7, 1910, pi. 59, fig. 7.Canadian (Beekmantown): Fort Casein, Vermont.Hormotoma confusa (Whitfield).Murchisonia? confusa Whitfield, Bull. Amer. Mas. Nat. Hist., 2, 1889, p. 54, pi. 8,figs. 16-18.?Seely, Vermont State Geol. Rep., 7, 1910, pi. 60, figs. 6, 8.Canadian (Beekmantown): Shoreham, Vermont.Hormotoma fasclata Branson.Hormotoma fasciata Branson, Trans. Acad. Sci. St. Loms, 18, 1900, p. 45, pi. 7,fig. 16.Black River (Auburn?Decorah): Lincoln County, Missouri. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 645Hormotoma funata (Billinga).Murchisonia funata Billings, Cat. Sil. Fosa. Anticosti, Geol. Sm*v. Canada, 1866,p. 55.Anticostian (Gun River, Jupiter River): The Jumpers, Anticosti.Hormotoma gigantea (Billings).Murchisonia gigantea Billings, Geol. Surv. Canada, Rep. Progress for 1853-1856,1857, p. 298; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 18G6, p. 55 (loc. ref.).Hormotoma gigantea Schuchert and Twenhofel, Bull. Geol. Soc. Amer., 21, 1910,p. 702.Gamachian (Ellis Bay): Prinsta Bay, Anticosti.Hormotoma gracilens (Whitfield).Miu-chisoniagracilensAMiitfield, Bull. Amer. Mus. Nat. Hist., 2, 1889, p. 53, pi. 8,figs. 14, 15.Hormotoma gracilens Ukich, Geol, Minnesota, 3, pt. 2, 1897, p. 1014, (gen. ref.).Canadian (Beekmantown): Beekmantown, New York.Hormotoma gracilis (Hall).Murchisonia gracilis Hall, Pal. New York, 1, 1847, p. 181, pi. 39, figs. 4a-c; p. 303,pi. 83, figs, la, b.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 162, pi. 17,figs. 9-16; Man. Geol., 1860, p. 102, fig.?Lincklaen, 14th Rep. New YorkState Cab. Nat. Hist., 1861, pi. 3, fig. 1.?Billings, Cat. Sil. Foss. Anticosti,Geol. Surv. Canada, 1866, pp. 18, 55.?Miller, Cincinnati Quart. Jotu-. Sci.,1, 1874, p. 315.?Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 18, fig.7c.?WTiitfield, Geol. Wisconsin, 4, 1882, p. 217, pi. 5, fig. 19.?Chamberlin,Geol. Wisconsin, 1, 1883, p. 157, fig.?Walcott, Amer. Join-. Sci. Arts, 3d ser.,35, 1888, p. 239, fig. 7.?Miller, N. A. Geol. Pal., 1889, p. 411, fig. 687.?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 428, figs.?Whiteavea,Canadian Rec. Sci., 5, 1893, p. 320.?Keyes, Missouri Geol. Surv., 5, 1894,p. 146.?Whiteaves, Pal. Foss., Geol. Sm-v. Canada, 3, pt. 2, 1895, p. 123.Minchisonia cf. gi-acilis Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, p.75, pi. 3, fig. 4.Hormotoma gracilis Whiteaves, Pal. Foss., Geol. Surv, Canada, 3, pt. 3, 1897,p. 192.?Ubich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1015, pi. 70,figs. 18-21, ?22.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, pi. 40, figs. 13a-b.?Grabau and Shimer, N. A. Index Fossils, 1, 1909,p. 649, figs. 885a-d, 886a-d.?Foerste, Jour. Cincinnati Soc. Nat. Hist,, 21,1914, p. 139, pi. 1, fig. 3.Trenton-Richmond: Watertown, Middleville, etc.. New York (Trenton). Widelydistributed in the United States and Canada.Plesiotypes.?Cat. No. 45851, U.S.N.M. (Ulrich and Scofield).Hormotoma gracilis angustata (Hall).Mm-chisonia? angustata Hall, Pal. New York, 1, 1847, p. 41, pi. 10, figs. 2a, b.Hormotoma gracilis var. angustata Ulrich and Scofield, Geol. Minnesota, 3, pt.2, 1897, p. 1015, pi. 70, figs. 30-36.-Bassler, Bull. Virginia Geol. 8uiv., 2A,1909, pi. 23, fig. 4.Black River: Watertown, etc.. New York; Canada; Virginia; Kentucky; Ten-nessee; Minnesota; Wisconsin; etc.Plesiotypes.?Cat. Nos. 45852-45856, U.S.N.M.Hormotoma gracilis goodhuonsis Ulrich and Scofield.Hormotoma gracilis var. goodhuensis Ulrich and Scofield, Geol. Minnesota, 3,pt. 2, 1897, p. 1015, pi. 70, figs. 42-43.Black River (Decorah): Goodhue County, Minnesota.Cotypes.?G&t. No. 45857, U.S.N.M. 646 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Hormotoma gracilis multlvolvls Ulrich and Scofield.Hormotoma gracilis var. multivolvis Ulrich and Scofield, Geol. Minnesota, 3, pt.2, 1897, p. 1015, pi. 70, figs. 26-29.Richmond (Maquoketa): Spring Valley, Minnesota.Cotypes.?Gat. No. 45858, U.S.N.M.Hormotoma gracilis sublaxa Ulrich and Scofield.Hormotoma gracilis Aur. sublaxa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2,1897, p. 1015, pi. 70, figs. 23-25.Black River (Auburn-Decorah): Auburn, Lincoln County, Missouri.Cotypes.?Gat. No. 45859, U.S.N.M.Hormotoma iiifrequens (Billings).Murchisonia infrequens Billings, Canadian Nat. Geol., 4, 1859, p. 457.Hormotoma inirequens Raymond, Ann. Carnegie Miis., 4, 1908, p. 191, pi. 55, fig. 4.Chazyan (Aylmer): Grand Isle, near Cornwall, Canada.Hormotoma latlangularKs Branson.Uormotoma latiaugularis Branson, Trans. Acad. Sci. St. Louis, 18, 1909, p. 44,pi. 7, figs. 11, 12.Black River (Auburn-Decorah): Auburn, Lincoln County, Missouri.Hormotoma(?) major (Hall).Murchisonia major Hall, Geol. Lake Superior Land Dist., 2, 1851, p. 209, pi. 26,fig8. la-c.?Chambcrlin, Geol. Wisconsin, 1, 1883, p. 167.?Keyes, MissouriGeol. Surv., 5, 1894, p. 145, pi. 49, figs. 5a-b.Hormotoma? major Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1018,pi. 71, figs. 5-7.?Grabau and Shimer, N. A. Index Fossils 1, 1909, p. 650,fig. 889.Murchisonia bellicincta Owen, Rep. Geol. Surv. Wisconsin, Iowa, and Minnesota,1852, pi. 2, fig. 8.Trenton (Pros.'jer and Stcwartville): Western shore of Green Bay, etc., Wisconsin;Stewartvillo, Hadcr, etc., ^linnesota; Iowa; Pike County, Missouri.Plesiotype and plastot>jpe.?CAt. Nos. 17903, 458G0, U.S.N.M.Hormotoma melaniaformis (Shumard).Murchisonia melaniaformis Shumard, 1st and 2d Ann. Rep. Geol. Surv., Missouri,pt. 2, 1855, p. 208, pi. C, fig. 13.?Keyes, Missouri Geol. Svnv., 5, 1894, p. 145,pi. 49, fig. 3.Hormotoma? melaniaformis Donald, Quart. Joiu-. Geol. Soc. London, 55, 1899,p. 262 (gen. ref.).Canadian: Franklin County, Missouri.Hormotoma multlvolvls (Billings),Murchisonia nuiltivi?Ivis Billings, Geol. Surv. Canada, Rep. Progr. for 1853-6,1857, p. 299; Cat. Sil. Foss, Anticosti, Geol. Surv. Canada, 1866, p. 18 (loc.ref.).Richmond (English Head): Macaaty Bay, Anticosti.Hormotoma obollsca (Whitfield).Murchisonia (Fusispira?) obelisca WTiitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886,p. 317, pi. 26, figs. 5, 6.Murchisonia obelisca Seely, Vermont State Geol., Rep. 7, 1910. pi. 60, fig. 5.Canadian (Beekmantown): Fort Cassin, Vermont. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 647Hormotoma patrlclaense Parka.Hormotoma patriciaense Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913,p. 36.Niagaran (Guelph) : Severn River, Ontario.Hormotoma procris (Billings).Murchisonia Procris Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 34 (adv.sheets, 1862).Hormotoma procris Ulricli, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.).Black River (Leray): Pauquette Rapids, Ottawa River, Canada.Hormotoma rugosa Schuchert and Twenhofel. See Loxonema rugosa.Hormotoma salteri Ulrich.Hormotoma salteri Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1016, pi. 70, figs.44-51.?Donald, Quart. Jour. Geol. Soc. London, 55, 1899, p. 262, pi. 21, figs.7-11.?Waller, Geol. Sur\'. New Jersey Pal., 3, 1903, p. 183, pi. 12, fig. 29.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 649, figs. 887c-d.Trenton: Between Burgin and Dan\alle, Kenti'cky (Flanagan); New Jersey.Cotypes.?Cat. No. 45861, U.S.N.M.Hormotoma salteri canadensis Ulrich.Murchisonia (Hormotoma) gracilis Salter, Geol. Surv. Canada, Can. Org. Rem.,Dec. 1, 1859, p. 22.?Billings, Geol. Surv. Canada, Geol. Canada, 1863, p.183, fig. 178.Hormotoma salteri var. canadensis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p.1016, pi. 70, fig. 44.Black River (Leray): Pauquettes Rapids, Ottawa River, Canada; near Lebanon,Tennessee.Hormotoma salteri nitida Ulrich.Hormotoma salteri var. nitida Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1016.Trenton (Flanagan): Between Burgin and Danville, Kentucky.Eolotypes.?Cat. No. 45862, U.S.N.M.Hormotoma salteri tennesseensis Ulrich.Hormotoma salteri var. tennesseensis Uhich, Geol. Minnesota, 3, pt. 2, 1897, p.1016, pi. 70, iig. 49.Black River: Between Nashville and Lebanon, Tennessee.Cotypes.?Cat. No. 45863, U.S.N.M.Hormotoma simulatrix (Billings).Murchisonia simulatrix Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 232,text fig. 218.Hormotoma simulatrix Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.).Chazyan (Quebec,?H?M): Table Head and Point Rich, Newfoundland.Hormotoma subangulata Ulrich and Scofield.Hormotoma subangulata LHrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.1016, pi. 70, figs. 37-41.Black River (Decorah): Chatfield and near Cannon Falls, Minnesota.Cotypes.?Cat. Noj. 45864-45866, U.S.N.M.Hormotoma subcarinata Grabau.Hormotoma subcarinata Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 173,pi. 24, figs. 1-5.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 650.Upper Monroan: Wayne County, Michigan (Lucas); Amherstburg, Ontario(Amherstburg). 648 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Hormotoma subulata (Conrad").Loxonema subulata Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 273, pi.16, fig. 14.?Winchell and Marcy, Mem. Boston Soc. Nat. Hiet., 1, 18C5, p. 100.Murchisonia subulata Hall, Tal. New York, 2, 1852, p. 91, pi. 28, figs. 7a, b, c, d.Holopella? cf. Loxonema subulata Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889,p. 291, pi. 5, fig. 21.Loxonema? (cf. Holopella) subulata Foerste, Geol. Surv^ Ohio, Pal., 7, 1S93, p.55G, pi. 30, fig. 21.Early Silurian: Medina, Reynales Baain, and Wolcott, New York (Clinton);Todds Fork and Dayton, Ohio (Brassfield).Hormotoma tenera Savage.Hormotoma tenera Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 9G, pi. G, fig. 9.Upper Medinan (Edgewood): Near Edgewood and Louisiana, Missouri.Hormotoma terebriformis Foorste.Hormotoma terebriformis Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p.137, pi. 3, figs. 8a, b.Trenton (Upper): Near Rogers Gap, Kentucky.Hormotoma teretlformls (Billings).Murchisonia teretiformis Billings, Geol. Surv. Canada Rep. Progr. for 1853-1856,1857, p. 298; Cat. Sil. Fobs. Anticosti, Geol. Surv. Canada, 1866, pp. 18, 55.Murchisonia bellicincta var. teretiformis Whiteavea, Canadian Rec. Sci., 5, 1893,p. 320.Hormotoma teretiformis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.).Richmond (Charleton): Charleton Point, Anticosti.Hormotoma trentonensls L'lrich and Scofield.Murchisonia bellicincta Hall (part), Pal. New York, 1, 1847, pi. 39, fig. le (notla-Id).?Owen, Geol. Rep. Wisconsin, Iowa, Minnesota, 1852, pi. 2, fig. 8.Murchisonia major WTiitfield (not Hall), Geol. Wisconsin, 4, 1882, p. 244, pi. 9,fig. 4.Hormotoma trentonensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p.1017, pi. 70, figs. 13, 14.?Grabau and Shimer, N. A. Index Fossils, 1, 1909,p. 650, fig. 887b, 888.Trenton: New York, Canada, Minnesota, Illinois, Kentucky, Tennessee.Eolotijpe.?Csit. No. 45867, U.S.N.M.Hormotoma tricarlnata Grabau.Hormotoma tricarinata Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. 175,pi. 25, figs. 3-4.Upper Monroan ;;Luca.s): Gibraltar quarry, Wayne County, Michigan.Hormotoma vesta (Billings).Murchisonia Vesta Billings, Geol. Canada, Geol. Sur\'. Canada, 1863, p. 276, fig.280; Pal. Fosa., 1, Geol. Surv. Canada, 1865, p. 32, fig. 33 (adv. sheets, 1862).?Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 431, fig.?Koken,Neues Jahrb. Min., Geol. Pal., 6, 18S9, Beilage-Band, p. 375.Hormotoma vesta Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.).Canadian (Beekmantown): Phillipsburg, Quebec.Hormotoma whlteave.sl Clarke and Rucdomann.Hormotoma whiteavcsi Clarke and Rucdemann, Mem. New York State Mus.,5, 1903, p. 72, pi. 8, figs. 5, 9.?Whiteaves, Geol. Surv. Canada, Pal. Foas., 3,pt. 4, 1906, p. 332. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 640Hormotoma whltcavesl?Continued.Loxonema magnum Whiteaves (not Whitfield), Geol. Surv. Canada, Pal. Foss., 3,pt. 1, 1SS4, p. 17 (loc. occ); Geol. Surv. Canada, Pal. Foss., 3, pt. 2, p. 87,pi. 13, fig. 2.Niagaran (Guelph): Gait, Heepeler, and Elora, Ontario; Shelby and RochesterNew York.Hormotoma winnipegensis Whiteaves.Hormotoma Winnipegensis "^Tiiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3,1897, p. 192, pi. 21, fig. 1.Murchisonia winnipegensis Miller, N. A. Geol. Pal., 2d App., 1897, p. 768 (gen.ref.).Black River or Richmond: Lake Winnipeg, Canada.HoRNERA? DiCHOTOMA Hall. See Thamniscus dichotomus.HoRTHOLUs Americanus D'Orbigny. See Barrandeoceras americanum.HouoHTONiA Rominger. See Calapcecia Billings.HUDSONASTER Stiirtz. Genotype:' Palseasterina rugosa Billings.Palaeaster (part) of authors.Hudsonaster Stiirtz, Verb, naturh. Ver. preuss. Rheinl.,etc., 1899, p. 224.?Schu-chert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p. 21; Bull. U. S. Nat. Mus.,88, 1915, p. 53.Protopalseaster Hudson, Ottawa Nat., 26, 1912, p. 5; ibid., 27, 1913, pp. 77-84.?Raymond, ibid., 1912, p. 105. (Genotype: P. narrawayi Hudson.)Hudsonaster incomptus (Meek).Palseaster incomptus Meek, Amer. Jour. Sci., 3d ser., 4, 1872, p. 275; Geol. Surv.Ohio, Pal., 1, 1873, p. 64, pi. 4, figs. 5a, b.?Lesley, Geol. Surv. Pennsylvania,Rep. P4, 1889, p. 577, figs.?James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895,p. 133.Palseaster simplex Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p.29, pi. 1, fig. 6.?Miller, N. A. Geol. Pal., 1889, p. 266, fig. 380.?James, Jour.Cincinnati Soc. Nat. Hist., 18, 1895, p. 132.Palaeaster clarkei Miller, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 102, pi. 3,fig. 5.Palseaster clarkana Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 236.?James,ibid., 18, 1895, p. 133.Hudsonaster incomptus Schuchert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914,p. 21; Bull. U. S. Nat. Mus., 88, 1915, p. 61, pi. 6, figs. 1, 2.MaysWIle and Richmond: Cincinnati, Ohio, and vicinity; Waynesville, Rays-ville, etc., Ohio.Hudsonaster matutinus (Hall).Asterias matutina Hall, Pal. New York, 1, 1847, pp. 91, 318, pi. 29, figs. 5a, b.Coelaster matutina D'Orbigny, Prodr. de Pal., 1, 1849, p. 22 (gen. ref.).Palseaster matutina Hall, 20th Rep. New York State Cab. Hist., p. 283, rev. ed.,1868 (1870), p. 325, pi. 9, fig. 2.Hudsonaster matutinus Schuchert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914,p. 21; Bull. U. S. Nat. Mus., 88, 1915, p. 57, pi. 2, fig. 2; pi. 3, fig. 2; pi. 5,figs. 1, 2.Petraster rigidus (part) Billings, Geol. Surv. Canada, Can. Org. Rem., dec. 3,1858, pi. 10, fig. 3b (not fig. 3a).?Hall, 20th Rep. New York State Cab. Nat.Hist., 1868, p. 294; rev. ed., 1870, p. 337.Trenton: Trenton Falls, etc.. New York; Lachine, Quebec; Government HouseBay, Ontario. 650 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Hudsonaster millerl Schuchert.Hudsonastor milleri Schuchert in Freeh, Fosa. Cat., 1, Anim., pt. 3, 1914, p. 22;Bull. U. S. Nat. Mu8., 88, 1915, p. 60, pi. 4, fig. 2.Trenton (Wilraore): Fayette County, Kentucky.Hudsonaster narrawayl (Hudson).Protopala'astcr narrawayi Hudson, Ottawa Nat., 26, 1912, p. 25, pi. 1-3; Bull.New York State Mus., 164, 1913, p. 130, pi. 5.?Raymond, Ottawa Nat., 26,1912, p. 105, figs. 2-1.?Hudson, Ottawa Nat., 27, l'913, pp. 77-84, 2 pis.Hudsonaster naiTawayi Schuchert in Freeh, Foss. Cat., 1, Anim., pt. 3, 1914, p.22; Bull. U. S. Nat. Mus., 88, 1915, p. 59, pi. 1, fig. 1; pi. 2, fig. 1; pi. 4,fig. 1.Black River: City View Postofiice, Ottawa, Ontario; St. Paul, MinnesotaStones River (Lebanon): Shelby\'ille, Tennessee.Hudsonastor rugosus (Billings).Pala?asterina rugosa Billings, Geol. Surv. Canada, Rep. Progress for 1853-56, 1857,p. 291; Geol. Surv. Canada, Can. Org. Rem., 3, 1858, p. 77, p. 19.?Chap-man, Canadian Jour., n. s., 6, 1861, p. 517.?Wright, Mon. British Foss.Echin., Oolitic, 2, pt. 1, 1862 (Pal. See. for 1861), p. 27.?Billings, Cat. Sil.Foss. Anticosti, Geol. Surv. Canada, 1866, p. 9.Hudsonaster rugosa Stuitz, Verh. naturh. Ver. preuss. Rheinl., 56, etc., 1899,p. 225.?Schuchert, Bull. U. S. Nat. Mus., 88, 1915, p. 64, pi. 3, fig. 1.Richmond (Charleton): Charleton Point, Anticosti.HUGHMILLERIA Sarle. Genotj-pe: H. socialis Sarle.HughmilleriaSarle, Bull. New York State Mus., Pal., 69, 9, 1903, p. 1087.?Clarke,Bull. New York State Mus., 107, 1907, p. 307.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 412.?Clarke and Ruedemann, Mem. New YorkState Mus., 14, 1912, p. 329.?Clarke, Zittel-Eaatman Textb. Pal., 2d ed.,1913, p. 785.Hughmilleria magna Clarke and Ruedemann.Hughmilleria magna Clarke and Ruedemann, Mem. New York State Mus., 14,1912, p. 341, pi. 85, figs. 11-19.Trenton (Schenectady): Schenectady, Duanesbiirg, and Rotterdam Junction,Schoharie County, New York.Hughmilleria shawangunli Clarke.Hughmilleria shawangunk Clarke, Bull. New York State Mus., 107, 1907, p. 308,pi. 4, figs. 1^; pi. 5, figs. 1-6, 8, 9.?Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 413, fig. 1714.?Clarke and Ruedemann, Mem. Now York StateMus., 14, 1912, p. 342, pis. 64-66; pi. 69, fig. 1.^fcdinan (Shawangunk): Otiavillo, New York; Delaware Water Gap, Pennsyl-vania.Hughmilleria socialis Sarle.Hughmilleria socialis Sarle, Bull. New York State Mus., 69, 1903, p. 1091, pis.6-9, 10, figs. 1-6, 8, 9; 11-14; 15, figs. 4-6; 24, fig. 1; 25, figs. 1, ?, 4; 26, figs. 3,5.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 413, fig. 1714.?Clarke and Ruedoman, Mem. Now York State Mus., 14, 1912, p. 335, pis.59-63 (p. 428, fig. 118, Hughmilleria pittsfordensia in error).Cayugan (Pitt?ford): Pittsford, New York.UuglimiUeria socialis robusta Sarle.Hughmilleria socialis var. robusta Sarle, Bull. New York State Mus., 60, 1903,p. 1097, pi. 21, figs. 1, 2.?Clarke and Ruedemann, Mom. New York StateMus., 14, 1912, p. 340, pi. 63, fig. 16.Caj-ugan (Pittsfordj: Pittaford, Now York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 651HUNGAIA Walcott. Genotype: Dikelocephalus magnificua Billings.Hungaia Walcott, Smitlis. Misc. Coll., 57, 1914, p. 351.Hungaia magniflca (Billings).Dikelocephalus magnificua Billings, Canadian Nat. Geol., 5, 1860, p. 307, fig. 5;Geol. Canada, Geol. Surv. Canada, 1863, p. 235, figs. 255a, b; Pal. Foss., 1,Geol. Surv. Canada, 1865, p. 299, fig. 376.Remopleurides magnificus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p.294 (gen. ref.).Dicellocephalus magnificus Matthew, Trans. Roy. Soc. Canada, 10, sec. 4, 1893,p. 11, footnote.?Freeh, Leth. Geog., Leth. Pal., 2, 1897, Bd., pi. lb, figs.18a, b.Apatokephalus magnificus Brogger, NytMag. f. Naturvid., 36, 1897, p. 175, fig. 10,p. 184.Ozarkian? (Levis?erratic): Point Levis, Quebec.HURONIA Stokes. Genotype: H. bigsbyi Stokes.Huronia Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, Expl. pi. 28; Proc.Geol. Soc. London, 2, 1838, p. 689; Trans. Geol. Soc. London, 2d ser., 5, 1840,p. 710.?Woodward, Man. Mollusca, pt. 2, 1851, p. 88, fig. 49.?Saemann'Palseontographica, 3, 1852, pp. 156, 161.?Barrande, Neues Jahrb. f. Min.,etc., 1855, p. 407.?Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56,1857, p. 326.?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 784;Cephalopodes, Ext. Syst. Sil. du Centre Boheme, 1877, p. 104.?Zittel,Handb. Pal., 2, 1884, p. 369.-Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884^p. 273.?Miller, N. A. Geol. Pal., 1889, p. 442.?Foord, Cat. Foss. British Mus.,1, 1888, p. 199.HuRONi.-v ANNULATA Hall. See Huronia bigsbyi.Huronia bigsbyi Stokes.Huronia Bigsbyi Stokes, Trans. Geol. Soc. London, 2d. ser., 1, 1824, Expl. pi. 28,fig. 1.?Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3, 1874, p. 743, pi. 436,figs. 1-3; Supp., 1877, pi. 474, figs. 2-4.Huronia annulata Hall, Geol. Lake Sup. Land District, Foster and WTiitney'aRep., 1851, p. 221, pi. 34, fig. 4.Niagaran: Drummond Island, Lake Huron.Huronia distincta Barrande.Huronia sp. Stokes, Trans. Geol. Soc. London, 2d ser., 5, 1840, p. 710, pi. 40, fig. 2,Huronia distincta Barrande, Syst. Sil. du Centre Boheme, 11, pt. 3, 1874, p. 745,pi. 231, fig. 2.?Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 207.Niagaran: Drummond Island, Lake Huron.Huronia minuens Barrande.Huronia minuens Barrande, Syst. Sil. du Centre Boheme, 11, pt. 3, 1874, p. 744,pi. 435, fig. 4.?Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 204.Niagaran: Drummond Island, Lake Huron.Huronia obliqua Stokes.Huronia sp. Stokes, Trans. Geol. Soc. London, 2d ser., 5, pt. 3, 1840, p. 710, pi. 40,fig. 3.Huronia obliqua Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, pi. 28, fig. 4. ? Castelnau, Essai Syst. Sil. I'Amcrique Septent., 1843, p. 32, pi. 9, fig. 1.Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 205.Orthoceras (Hiu'onia) sp. Barrande, Syst. Sil. Boheme, 2, 3, 1874, p. 743, pi. 231,fig. 3.Niagaran: Dnumnond Island, Lake Huron. 652 BULLETIN f)2, UNITED STATES NATIONAL MUSEUM.Huronla perslphonata (Dillings).Orthoceraa persiphonatum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56,1857, p. 329; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 18G6, p. 57 (loc.ref.).Huronia perslphonata Foord, Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 204.Anticostian (Gun River, Jupiter River): Cormorant Point, Anticosti.Huronla portlockl Stokes.Iluronia Portlockii StokeH, Proc. Geol. Soc. London, 2, 1838, p. 689; Trans. Geol.Soc. London, 2d ser., 5, 1840, p. 710, pi. 40, fig. 5.?Foord, Cat. Foss. Ceph.British Mus., 2, 1891, p. 383.?Ami, Canadian Roc. Set., 4, 1891, p. 399.Orthoceras (Iliu-onia) Portlockl Barrande, Syst. Sil. du Centre Boheme, 2, pt. 3,1874, p. 741, pi. 232, fig. 4.Niagaran: Drummond Island, Lake Huron.Huronia romingeri Barrande. See Huronia turbinata.Huronia sPHiEROiDALis Stokes. See Actinoceras sphseroidale.Huronia turbinata Stokes.Huronia turbinata Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, Expl. pi.28, fig. 3.?Foord, Cat. Foss. Ceph. British Mus., 1, 1888, p. 206.Huronia romingeri Barrande, Syst. Sil. Boheme, 2, 3, 1874, p. 758; Suppl. 1877, pi.474, figs. 5, 6.Niagaran: Drummond Island, Lake Huron; Point Detour, Michigan.Huronia vertobralls Stokes.Hurouia vortebralis Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, Expl. pi.28, figs. 2, 6.?Woodward, Man. Mollusca, pt. 1, 1851, p. 89, fig. 49, footnote;3d ed., 1875, p. 192, fig. 56.?Hall, Geol. Lake Sup. Land Dist., Foster and\Miitney's Rep., 1851, p. 221, pi. 24, fig. 1.?Barrande, Syst. Sil. du CentreBoheme, 2, 1874, pt. 3, p. 746, pi. 231, figs. 6, 7, pi. 436, figs. 5-7.?Roemer,Leth. geog., 1, Leth. Pal., Atlas, 1876, pi. 16, fig. 3.?Zittel, Uandb. Pal., 2,1884, p. 369, fig. 508.?Foord, Cat. Foss. Ceph. Brit. Mus., 1, 1888, p. 202.?Miller, N. A. Geol. Pal., 1889, p. 442, text fig. 744.Orthoceras canadense Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,pp. 321-328; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 57.Niagaran: Drummond Island, Lake Huron.Anticostian (Chicotte): Southwest Point, Anticosti.HYALOSTELIA Zittel. Genotype: Uyalonoma sniillii Young.Hyalostolia Zittel, Handb. Pal., 1, 1879, p. 185.?Hinde, Mon. British Foss.Sponges, Pal. Soc, 1888, p. 109.?Koken, Die Leitfoasilien, Leipzig, 1896, p.342.?Zittel-Eastman Textb. Pal., 1, 1900, p. 55; ibid., 2d ed., 1913, p. 62.Hyalostplia? motissica Dawson.Hyalostelia Metissica Dawson, Canadian Rec. Sci., 3, 1888, p. 54.?Hinde, Cana-dian Rec. Sci., 3, 1888, p. 68.?Dawson and Hinde, Trans. Roy. Soc. Canada,7, sec. 4, 1890, p. 49, fig. 20.?Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 108,fig. 17, pi. 3, fig. 10.Pyritoncma metistdcum Rauff, Palaeontograpliica, 40, 1894, p. 261.Canadian? (Levis?): Little Metis, Quebec.Hyalo-stelia 80UVAGA Ulrich. See Hindia sphseroidalis.Htattella Hall and Clarke. See Hyattidina Schuchert.Hyattella junia Hail and Clarke. See Hyattidina congeata junia. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 653HTATTIDINA Schuchert. Genotype: Atrypa congesta Conrad.Hyattella Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 61, fig. 45; 13th Ann.Rep. New York State Geol., 1895, p. 767.?Schuchert, Zittel-Eastman Textb.Pal., 1, 1900, p. 338.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p.348.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 204; Bull. New YorkState Mus., 45, 1901, p. 204.Hyattidina (Hyattella preoccupied) Schuchert, Zittel-Eastman Textb. Pal., 1913,p. 415.Hyattidina charletona Twenhofel.Hyattidina charletona Twenhofel, Bull. Victoria Mem. Mus., 3, 1914, p. 34, pi. 1,figs. 6, 7.Richmond (Charleton): Charleton Point, Anticosti.Hyattidina congesta (Conrad).Atrj'pa congesta Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 265, pi.16, fig. 18.?Hall, Geol. New York, Rep. 4th Dist., 1843, p. 71, fig. 2; Pal.New York, 2, 1852, p. 67, pi. 23, fig. 1.?Billings, Canadian Nat. Geol., 1,1856, p. 136, pi. 2, fig. 4.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 823,fig. 632.Atrypa quadricostata Hall, Pal. New York, 2, 1852, p. 68, pi. 23, fig. 2.Triplesia? congesta Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 77.Triplesia? quadricostata Hall, ibid., 1859, p. 78.Rhynchonella quadricostata Miller, N. A. Geol. Pal., 1889, p. 369.Camerella congesta Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol.Surv., 1889, p. 48.?Lesley, Geol. Sm-v. Pennsylvania, Rep. P4, 1889, p. 112,figs.Hyattella congesta Hall and Claike, Pal. New York, 8, pt. 2, 1893, p. 61, fig. 45;pi. 40, figs. 23-28; pi. 81, figs. 26-28.?Grabau, Bull. New York State Mus.,45, 1901, pp. 204, 205, figs. 131, 131a; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p.204, figs. 131, 131a.?Grabau and Shimer, N. A. Index Fossils, 1, 1907, p.348, figs. 451^52.Clinton (Lower): Rochester, Reynales Basin, etc.. New York; Ontario.Anticostian (Gun River): Island of Anticosti.Plesiotypes.?C&t. No. 51340, U.S.N.M. (Nettehoth).Hyattidina congesta junia (Billings).Athyris junia Billings, Catalogue Sil. Foss. Anticosti, 1866, p. 46.Hyattella junia Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 62, pi. 40,figs. 29-31.Anticostian (Gun River): Six miles east of Otter River, Jupiter River, and theJumpers, Anticosti.Hyattidina? lamellosa (Weller).Hyattella? lamellosa Weller, Geol. Surv. New Jersey, Rep. Pal., 3, 1903, p. 258,pi. 23, figs. 15-18.Helderbergian (Rondout): Two miles south of Tristates, New York.HYBOCEINUS Billings. Genotype: H. conicus Billings.Hybocrinus Billings, Geol. Surv. Canada, Rep. Progi-., 1853-56, 1857, p. 274;Geol. Surv. Canada, dec. 4, 1859, p. 23.?Schmidt, Mem. I'Acad. Imp. Sci.St. Petersburg, 8th ser., 21, 1874, p. 5.?Zittel, Handb. Pal., 1, 1879, p. 350.?Wachsmuth and Springer, Proe. Acad. Nat. Sci. Philadelphia, 1879, pp. 285,297, 373 (Rev. Pal., 1, p. 74, 150); ibid., 1886, pp. 110, 119, 122; ibid., 1890,pp. 355, 390, 393, pi. 10, fig. 7.?Wetherby, Jour. Cincinnati Soc. Nat. Hist.,3, 1880, p. 152.?Carpenter, Quart. Jour. Geol. Soc. London, 38, 1882, pp. 298, 654 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.HYBOCRINUS?Continued.305.?Wachsrauth and Springer, Amer. Jour. Sci., 3d ser., 26, 1883, p. 365.?Miller, N. A. Geol. Pal., 1889, p. 255.?Bather, Ann. Mag. Nat. Hist., 6th ser.,5, 1890, p. 324, pi. 14, fig. 3; Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893,p. 21; Geol. Mag., dec. 4, 6, 1889, p. 33, fig. 6; Treatise on Zool., pt. 3, Echino-derma, London, 1900, p. 145, fig. 57, 3.?Wachsmuth, Zittel-Eastman Textb.Pal., 1, 1900, p. 151.?Zittel, Grundzuge Pal., 1910, p. 151.?Grabau andShinier, N. A. Index Fossils, 2. 1910, p. 500.?Springer, Mem. Geol. Surv.Canada. 15P, 1911, pp. 13-23; Zittel-Eastman Textb. Pal., 2d ed., 1913,p. 211.Hybocrincs (Anomalocrinus) Meek and Worthen. See Anomalocrinus Meek.Hybocrlnus conlcus Billings.Hybocrinus conicus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,p. 274; Geol. Surv. Canada, dec. 4, 1859, p. 29, pi. 2, figs. 2a, b.?Wetherby,Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 153.?Miller, N. A. Geol. Pal.,1889, p. 255, fig. 341.?Springer, Mem. Geol. Surv. Canada, 15P, 1911, pi. 4,fig. 6.Trenton (Curdsville) : Ottawa, Ontario; Mercer County, Kentucky.Hybocrinus? (Anomalocrinus) incurvus Meek and Worthen. See AnomalocrinusincurvTJS.Hybocrlnu.s pristinus Billings.Hybocrinus pristinus Billings, Geol. Siu-v. Canada, dec. 3, 1858, p. 25, figs, 4, 5;dec. 4, 1859, p. 23, pi. 1, fig. 2a.?Grabau and Shimer, N. A. Index Fossils,2, 1910, p. 501.Chazyan (Aylmer): Caughnawaga, and Islands of Montreal, Jesus, and Bizard,Canada.Hybocrinus tumidus Billings.Hybocrinus tumidus Billings, Geol. Surv. Canada, Rep. Progr. 1853-56, 1857,p. 275; Geol. Surv. Canada, dec. 4, 1859, p. 28, pi. 2, figs, la-le.?Wetherby,Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 153, pi. 5, figs. 2a-c.?Carpenter,Quart. Jour. Geol. Soc. London, 38, 1882, p. 298, fig. A; pi. 11, figs. 3-5.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 501, fig. 1812.?Springer,Mem. Geol. Surv. Canada, 15P, 1911, p. 18, pi. 5, figs. 1-5.Trenton (Curdsville): Ottawa, Ontario; Woodford and Mercer Counties, Kentucky.Hybocysti.s Bather. See Hybocystites Wetherby.HTBOCYSTITES Wetherby. Genotype: H. probleraaticus Wethorby.Hybocystites Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 150.?Car-penter, Quart. Jour. Geol. Soc. London, 38, 1882, p. 308.?Wachsmuth andSpringer. Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 360, 373 (Rev. Pal., pp.186, 199.)?Miller, N. A. Geol. Pal., 1889, p. 256.?Zittel, Grundzuge Pal.,1910, p. 151.Hybocystis Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 145. ? Wachsmuth, Zittel-Ea-^traan Textb. Pal., 1, 1900, p. 152.?Springer, Mem.Geol. Surv. Canada, 15P, 1911, pp. 13-25; Zittel-Eastman Textb. Pal., 1,1913, p. 211.Hybocystites eldonensis (Parks).Hybocystis rldonensis Parks, Ottawa Nat., 21, 1908, p. 234. pi. 2, fig. 4.?Springer,Mem. G(f.l. Surv. Canada, 15P, 1011, p. 13, pi. 2, figs. 1-10.Trenton (CurdsNnlle): Eldon township, Victoria County (near Kirkfield), Ontario.Observation.?Probably the same as H. probleraaticus. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 655Hybocystites problematlcus Wetherby.Hybocystites problematlcus Wetherby, Jour. Cincinnati Soc. Xat. Hist., 3, 1880,p. 150, pi. 5, ^gs. la-c.?Carpenter, Quart. Jour. Geol. Soc. London, 38, 1882,p. 307, pi. 11, figs. 6-24.?Miller, N. A. Geol. Pal., 1889, p. 256, fig. 342.Hybocystis problematlcus Bather, Treatise on Zool., pt. 3, Echinoderma, London,1900, p. 95, fig. 1.?Parks, The Ottawa Nat., 21, 1908, p. 232, pi. 2, figs.1-3, 5.?Springer, Mem. Geol. Surv. Canada, 15P, 1911, p. 21 (under H.eldonensis); pi. 2, figs. 11, 12.Trenton (Curdsville): Mercer and Woodford Counties, Kentucky; Kirkfield,Ontario.Hyt)rol;enus conifrons Salter. See Illsenus conifrons.HTOLITHELLUS Billings. Genotype: Hyolithes micans Billings.Hyolithellus Billings, Canadian Nat. Geol., n. e., 6, 1871, p. 240; Amer. Jour.Sci., 3d ser., 3, 1872, p. 360.?Walcott, Bull. U. S. Geol. Surv., 30, 1886, p.141.?Miller, N. A. Geol. Pal., 1889, p. 391.?Matthew, Trans. Roy. Soc.Canada, 2d ser., 5, sec. 4, 1899, p. 107.Hyolithellus papillatus Walcott.Hyolithellus papillatus Walcott, Smiths. Misc. Coll., 57, 1912, p. 267, pi. 43, figs.3, 4.Upper Cambrian or Ozarkian (Potsdam) : Marble River, near Chateaugay, Frank-lin County, New York.Holofype.?Cat. No. 58553, U.S.N.M.HYOLITHES Eichwald. Genotype: H. acutus Eichwald.Hyolithes Eichwald, Sil. Sch. Syst., Ehstland, 1840, p. 97.?Barrande, Syst. Sil.du Centre Boheme, 3, 1867, p. 55.?Billings, Canadian Nat., n. s., 6, 1871,p. 213.?Ford, Amer. Jour. Sci., 3d ser., 1, 1871, p. 472; 3, 1872, p. 352.?Kayser, Beitr. Geol. Pal. Argent. Repub., Pal. Suppl., 3, 1876, p. 8.?Hall,Pal. New York, 5, pt. 2, 1879, p. 191.?Waagen, Mem. Geol. Surv. India, Pal.Indica, 13th ser., 1, 1880, p. 175.?Zittel, Handb. Pal., 2, 1882, p. 316.?Koninck, Ann. d. Mus. Roy. d'Hist. Nat. de Belgique, 8, 1883, p. 223.?Matthew, Trans. Roy. Soc. Canada, 3, sec. 4, 1886, p. 45.?Walcott, Bull.U. S. Geol. Surv., 30, 1886, p. 131.?Remele, Zeits. d. d. geol. Gesell., 41,1889, p. 762.?Miller, N. A. Geol. Pal., 1889, p. 391.?Matthew, CanadianRec. Sci., 5, 1893, pp. 435^36, 437.?Holm, Sveriges Geol. Unders., ser. C,No. 112, 1893, p. 6, 9, 13, 45, 151.?Matthew, Canadian Rec. Sci., 5, 1893, p.433.?Koken, Die Leitfossilien, Leipzig, 1896, p. 98, fig. 77; p. 400.?Mat-thew, Trans. Roy. Soc. Canada, 2d ser., 7, sec. 4, 1901, p. 93.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 950.Hyolithes baconi Whitfield.Hyolithes Baconi \Vhitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878, p.77; Geol. Wisconsin, 4, 1882, p, 225, pi. 6, figs. 9-11.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 158, fig.Black River (Platteville): Beloit, etc., Wisconsin; Minnesota.Hyolithes cliftonensis Foerste.Hyolithes cliftonensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 62, pi.3, figs. 38a, b.Clinton (Osgood): Clifton, Tennessee.Hyolithes(?) dubius Miller and Faber.Hyolithes(?) dubius Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, 1894,p. 155, pi. 8, fig. 23.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 964, pi. 42, fig. 3.Richmond: Versailles, Indiana. 656 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.HyoUthes gibbosus Hall and Whitfield.Hyolithesgibboeus Hall and WTiitfield, 23d Ann. Rep. New York State Cab. Nat.Hist., 1S73, p. 242, pi. 11, figs. 1-3.?Walcott, Smiths. Misc. Coll., 57, 1912,p. 2G5, pi. 43, figs. 5, 6.Upper Cambrian or Ozarkian (Potadam sandstone) : Ausable Chasm, Essex County,New York.HyoUthes iiewsomensis Foerste.HyoUthes newsomensisFoerste, Jour. Geol., 11, 1903, p. 707; Bull. Sci. Lab. Deni-eon Univ., 14, 1909, p. G3, pi. 1, figs. 3A, B.Niagaran (Waldron): Newsom, Swallow Bluff, and Iron City, Tennessee.HyoUthes parvlusculus (Hall).Theca parviuscula Hall, Geol. Wisconsin, 1862, p. 55, fig. 10.HyoUthes parviusculus James, Amer. Geol., 5, 1890, p. 355.Richmond (Maquoketa): Wisconsin, Illinois, Iowa, and Missouri.HyoUthes plnnlformls Ruedemann.HyoUthes pinniformis Ruedemann, Bull. New York State Mus., 162, 1912, p. Ill,pi. 7, figs. 12, 13.Trenton (Canajoharie): Canajoharie, New York.HyoUthes rhino Ruedemann.HyoUthes rhine Ruedemann, Bull. New York State Mus., 49, 1901, p. 36, pi. 2,figs. 12-15.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York.HyoUthes subimbrlcatus Ringueberg.HyoUthes subimbrlcatus Ringueberg, Proc. Acad. Nat. Sci. Philadelphia, 1888,p. 135, pi. 7, fig. 7.Clinton (Rochester): Lockport, New York.HyoUthes vanuxemi Walcott.HyoUthes Vanuxemi Walcott, Mon. U. S. Geol. Sur\'., 8, 1884, p. 85, pi. 11, figs.16, IGa, b.Lower Pogonip: Northeast of Adams Hill, Eureka District, Nevada.Cotypes.?Cat. No. 17375, U.S.N.M.HyoUthes versaUlesensIs Miller and Faber.HyoUthes vcrsaillesensis Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17,1894, p. 155, pi. 8, figs. 20-22.?Miner, N. A. Geol. Pal., 2d App., 1897, p. 765,fig. 1409.?Cumings, 32d Ann. Rep. Dep. Gtol. Nat. Res. Indiana, 1908, p.965, pi. 42, figs. 4, 4a.Richmond: Versailles, Indiana.Hypanthocrinites PhilUps. See EucalyptocrinuB Goldfuss.HypANTHOCRiNrrEa decorus Hall. See Eucalyptocrinus cselatus Isevis.Hypanthocrinus Hall. See Eucalyptocrinus Goldfuss.HYrANTHOCRi.vus DECORUS Hall. See Eucalyptocrinus ccelatus levis.HTPSELOCONUS Berkey. Genotype: Metoptoma recurva Whitfield.Hypeeloconus Berkley, Amer. Geol., 21, 1898, p. 282.?Grabau and Shimer, N. A.Index Fossils, 1, 1909, p. 604.Hypseloconus recurvus (Whitfield).Metoptoma recurva Whitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878,p. 61; Geol. Wisconsin, 4, 1882, p. 196, pi. 3, figs. 14, 15.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 142, fig. BIBLIOGKAPHIC LIST OF GENEEA AND SPECIES. 657Hypseloconus recurvus?Continued.Hypseloconus recurvus Berkey, Amer. Geol., 21, 1898, p. 284, pi. 19, figs. 3-8,13-16, 27-31; pi. 21, figs. 8, 12, 13, 14, 16, 20.? Sardeson, Jour. Geol., 11, 1903,p. 479, fig. 6.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 604, fig.804a, b.Ozarkian (Mendota) : East of Baraboo, Wisconsin.Hyptiocrinus Wachsmuth and Springer. See Cyphocrinus Miller.Hyptiocrinus typus Wachsmuth and Springer. See Cyphocrinus gorbyi.HYSTRICURUS Raymond. Genotype: Bathyurus conicus Billings.Hystricurus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 60; Zittel-Eastman Textb. Pal., 1913, p. 716.Hystricurus conicus (Billings).Bathyurus conicus Billings, Canadian Nat. Geol., 4, 1859, p. 266, fig. 12d; Geol.Canada, Geol. Surv. Canada, 1863, p. 122, fig. 42; Pal. Fosb., 1, Geol. Surv.Canada, 1865, p. 353, fig. 341.?Whitfield, Bull. Amer. Mus. Nat. Hist., 2,1889, p. 61, pi. 13, figs. 15-21.?Grabau and Shimer, N. A. Index Fossils, 2,1910, p. 288.?Seely, Vermont State Geol. Rep., 7, 1910, pi. 57, figs. 4, 5.Hystricurus conicus Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 60, pi.7, fig. 9.Canadian (Beekmantown): St. Timothy, on Beauharnois Canal, Canada; Corn-stock Landing, New York; Fort Cassin, Vermont; Cow Head, Newfoimd-land (Quebec-P).Hystricurus cordai (BilHngs).Bathym-us Cordai Billings, Canadian Nat. Geol., 5, 1860, p. 321, fig. 26; ibid., 6,1861, p. 314; Geol. Canada, Geol. Surv. Canada, 1863, p. 238, fig. 269; Pal.Foss., 1, Geol. Surv. Canada, 1865, p. 259, fig. 242; p. 412, fig. 395.Bathyurus seelyi Whitfield, Bull. Amer. Mus. Nat. Hist., 11, 1889, p. 62, pi. 13,figs. 8-14.?Seely, Vermont State Geol., Rep. 7, 1910, pi. 57, figs. 6, 7.Hystricurus cordai Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 61.Canadian: Point Levis, Quebec (Levis conglomerates); Phillipsburg, Quebec(Beekmantown); Cow Head and Bay St. John, Newfoundland.Hystricurus crotalifroas (Dwight).Bathyurusf?) crotalifrons Dwight, Amer. Jour. Sci., 3d ser., 27, 1884, p. 253, pL7, figs. 4, 4a, 5, 6.Hystricurus crotalifrons Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 61.Canadian (Beekmantown): Rochdale, Dutchess County, New York.Hystricurus? tuberculatus (Walcott).Bathyurus? tuberculatus Walcott, Mon. U, S, Geol. Surv., 8, 1884, p. 91, pi. 12,fig. 9.Upper Pogonip: Ridge southwest of Wood Cove, Eureka District, Nevada.Cotype.?C&t. No. 24654, U.S.N.M.ICHNOPHTCUS Hall. Genotype: I. tridactylus Hall.Ichnophycus Hall, Pal. New York, 2, 1852, p. 26.?Miller, N. A. Geol. Pal.,1889, p. 120.Ichnophycus tridactylus Hall.Ichnophycus tridactylus Hall, Pal. New York, 2, 1852, p. 26, pi. 10, fig. 7a, b.?Miller, N. A. Geol. Pal., 1889, p. 120, fig. 41.Clinton: New Hartford, New York.84243??Bull. 92?15 42 658 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.ICHTHYOCRINUS Conrad. Genotype: I. lae via Conrad.Ichthyocrinus Cunrad, Jour. Acad. Nat. Sci. Philadelphia, 1842, 8, p. 279.?D'Orbigny, Prodr. de Pal., 1, 1849, p. 46.?Hall, Pal. New York, 2, 1852,pp. 195-355.?McCoy, British Pal. Rocks Fosb., 1854, p. 54.?Pictet, Traitede Pal., 2d ed., 4, 1857, p. 319.?Hall, Rep. Geol. Snrv. Iowa, 1, 1858, pt. 2,p. 557.?Beyrich, Ann. Mag. Nat. Hiet., 4th ser., 7, 1871, p. 403.?Salter,Cat. Camb. and Sil. Foss., 1873, p. 12G.?Angelin, Iron. Crinoid., 1878, p. 13.?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1878, p. 252;ibid., 1886. p. 67; ibid., 1888, p. 353; ibid., 1890, p. 387.?Zittel, Ilandb.Pal., 1, 1879, p. 355.?Miller, N. A. Geol. Pal., 1889, p. 256.?Bather, Nat.Sci., 12, 1898, p. 341.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv.,4, pt. 1, 1900, p. 145, fig. 53.?Bather, Treatise on Zool., pt. 3, Echinoderma,London, 1900, p. 188, fig. 108.?Wachsmuth, Zittel-Eastman Textb. Pal., 1,1900, p. 163.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 159; Bull.New York State Mus., 45, 1901, p. 159.?Springer, Jour. Geol., 14, 1906, p.516.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 563.?Springer,Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 204.Ichthyocrinus? cllntonensis Hall,Ichthyocrinus? clintonensisHall, Pal. New York, 2, 1852, p. 181, pi. A40, fig. 5.Lower Clinton: Reynales Basin, Niagara County, New York.Ichthyocrinus conoldeus Ringueberg.Ichthyocrinus conoideus Ringueberg, Ann. New York Acad. Sci., 5, 1890, p. 305,pi. 3, fig. 5.?Springer, Mon. Criu. Flex., Smith. Inst, (in press).Niagaran (Lockport-Gasport member): Lockport, New York.Ichthyocrinus corbis Winchell and Alarcy.Ichthyocrinus corbis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865,p. 89, fig.?Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 175, pi. 4, fig.5; N. A. Geol. Pal., 1889, p. 256, fig. 343.Niagaran (Racine): Chicago and Cicero, Illinois.Ichthyocrinus loevls Conrad.Ichthyocrinus Isevis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 279,pi. 15, fig. 16.?Hall, Pal. New York, 2, 1852, p. 195, pi. 43, figs. 2a-p.?Billings, Canadian Nat. Geol., 1, 1856, p. 59, pi. fig. 4.?Pictet, Traite de Pal.,2d ed., 4, 1857, p. 319, pi. 100, fig. 17.?Emmons, Man. Geol., 1860, p. 110,fig. 100.?Liucklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 7,fig. 3.?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879,p. 258.?Miller, N. A. Geol. Pal., 1889, p. 256, fig. 344.?Grabau, Bull. BuffaloSoc. Nat. Sci., 7, 1901, p. 159, fig. 54; Bull. New York State Mus., 45, 1901. p.159, fig. 54.?Grabau and Shimer, N. A. Index Fossils. 2, 1910, p. 564, fig. 1900.Cyathocrinitps pyriformis Hall, Nat. Ilist. New York Geol., 4, 1843, p. 11, fig. 3;p. 112, tab. ill. 17, fig. 3.?Owen, Amcr. Jour. Sci. Arts, 48, 1845, p. 314, fig. 3.Cyathocrinus pyriforniis Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 167,figs.Lecanocrinus simplex Hall, Pal. New York, 2, 1852, p. 202, pi. 46, figs. 2a-e.Ichthyocrinus simplex Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-dcli)lua, 1879 (Rev. Pal., 1, 1879, p. 35).Clinton (Rochester): Lockport, Rochester, etc.. New York; Ontario.Ichthyocrinus simplex Wachsmuth and Springer. See Ichthyocrinus UeviB.Ichthyocrinus suban^ularls Hall.Ichthyocrinus Kubangularis Hall, Trau.-^. Albany Inst., 4, 1863, p. 201 (abstract,p. 7); 20th Rep. New York State Cab. Nat. Hist, (extras, 1865), p. 325, pi. BIBLIOGEAPHIC LIST OF GENEEA AND SPECIES. 659Ichthyocrlnus subangularis?Continued.11 (2), figs. 15, 16; p. 385, fig. 11; p. 391; rev. ed., 1870, p. 367, pi. 11, figs. 15,16; p. 429, text fig; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875,1877, pi. 16, figs. 11-13; mus. ed., 1879, p. 137, pi. 16, figs. 11-13; 11th Ann.Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 268, pi. 15, figs. 12, 13; pi. 16,figs. 11-13.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, p. 146,pi. 15, figs. 3-5.?Springer, Jour. Geol., 14, 1906, p. 477, pi. 6, fig. 2; Mon.Crin. Flex., Smith. Inst, (in press).Niagaran: Waldron, Indiana (Waldron); Bridgeport and Romeo, Illinois (Racine).Idioceinus Wachsmuth and Springer. See Gazacrinus Miller.Idiocrinus elongatus Wachsmuth and Springer. See Gazacrinus inornatus.Idiocrinus tennesseensis Wachsmuth and Springer. See Ormocrinus tennesseensia.IDIOSTROMA Winchell. Genotype: I. csespitosum Winchell.Idiostroma Winchell, Proc. Amer. Assoc. Adv. Sci., 15, 1867, p. 99. ? Nicholson, Mon. British Strom., Pal. Soc, 1886, pp. 10, 11, 99.Idiostroma nattressi Grabau.Idiostroma nattressi Grabau, Michigan Geol. Surv., Geol., 1st ser., 1909, p. 94,pi. 9, figs. 5-7; pi. 8, figs. 2, 3.Upper Monroan (Anderdon and Amherstburg) : Near Amherstburg, Ontario.IDIOTRYPA Ulrich. Genotype: Idiotrypa parasitica Ulrich.Idiotrypa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 272.?Miller, N. A.Geol. Pal., 1889, p. 310.?Ulrich, Geol. Surv. Illinois, 8, 1890, p. 375.?Simpson, 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 591.?Nickles and Bassler, Bull. U. S. Geol. Siu-v., 173, 1900, p. 34.?Bassler, ibid.,292, 1906, p. 39.Idiotrypa parasitica Ulrich. See Idiotrypa punctata.Idiotrypa punctata (Hall).Trematopora?? punctata Hall, Pal. New York, 2, 1852, p. 151, pi. 40A, figs. 4a-c.Idiotrypa punctata Bassler, Bull. U. S. Geol. Sm-v., 292, 1906, p. 40, pi. 17, figs.4-10; pi. 24, figs. 17-19.Idiotrypa parasitica Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 273,pi. 13, figs, l-lc?Simpson, 14th Ann. Rep. State Geol. New York for 1894,1897, figs. 187-189 (p. 591).Clinton: Rochester, Lockport, etc.. New York (Rochester); Osgood, Indiana(Osgood).Plesiotypes.?Cat. Nos. 35496, 43674, U.S.N.M. (Holotype of I. parasitica).ILIONIA Billings. Genotype: I. canadensis Billings.Ilionia Billings, Canadian Nat., n. s., 7, 1874, p. 301.?Wliiteaves, Pal. Foss., Geol.Surv. Canada, 3, pt. 1, 1884, p. 13.?Miller, N. A. Geol. Pal., 1889, p. 483.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 379.Ilionia canadensis Billings.Ilionia Canadensis Billings, Canadian Nat., n. s., 7, 1874, p. 301, fig. 1, 2.Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 13, fig. 3; p. 14,fig. 4; ibid., pt. 2, 1905, p. 67.Silurian: Port Daniel, Bay of Chaleurs, Quebec; Elora and Hespeler, Ontario(Guelph). 660 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ilionia? costulata Wliiteaves.Ilionia(?) costulata WTiiteavcs, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 15,pi. 2, fig. 5; ibid., pt. 2, 1895, p. 68 (loc. occ).Niagaran (Guelph): Elora and Durham, Ontario.Ilionia galtensi.s Whiteaves. See Prolucina galtensis.Ilioula? parvula Whiteavee.Ilionia(?) parvula Wliiteaves, Geol. Surv. Canada, Pal. Foes., 3, pt. 4, 1906, p. 288,pi. 28, figs. 6-8.Niagaran: Ami Island near northeast shore of Lake Winnipegosis, Manitoba.Ilionia sinuata (Hall).Anatina? sinuata Hall, Pal. New York, 3, 1859, p. 265, pi. 49, figs. 3a-3d.Ilionia sinuata "Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 15. ? Schuchert, Amer. Geol., 31, 1903, p. 168.?Grabau and Shimer, N. A. IndexFossils, 1, 1909, p. 379.Cayiigan (Cobleskill and Manlius): Litchfield and V.'inticld, Herkimer County,New York.ILL.ENOIDES Weller. Genotype: I. triloba Weller.Illtenoides Weller, Bull. Chicago Acad. Sci., Nat. Hist. Sur^^, 4, pt. 2, 1907, p.226.nijenoides triloba Weller.lUaenoides triloba Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2,1907, p. 226, pi. 17, figs. 6-9; pi. 19, figs. 12-14.Niagaran (Racine): Bridgeport, Joliet, and near Lemont, Illinois.ILL.ENURUS Hall. Genotype: I. quadratus Hall.Illajnurus Hall, 16th Ann. Hep. New York State Cab. Nat. Hist., 1863, p. 176;Trans. Albany Inst., 5, 1867, p. 167.?Zittel, Handb. Pal., 2, 1885, p. 612.?Miller, N. A. Geol. Pal., 1889, p. 550.Ill^nurus COLUMBIANA Weller. See Smyphysurus convexus.Ulsenurus convexus \\Tiitfield.lUfenurus convexus V.hitfield, Ann. Rep. for 1877, Wisconsin Geol. Surv., 1878,p. 66; Geol. Wisconsin, 4, 1882. p. 203, pi. 4, figs. 3-5.?Chamberiin, ibid.,1, 1883, p. 141, fig.Ozarkian (Mendota): East of Baraboo, Wisconsin.iLLiENURUs EuREKENsis Walcott. See Symphysurufl eurekensis.ILLiENUS Dalman. Genotj'pe: Entomostracites crassicauda WahlenbcrgIllffinus Dalman, Svenska Vet.-Akad. Handl., 1826, 1827, p. 248.?Dalman-Engclhart. Die Palaeaden, Numberg, 1828, p. 50.?Green, Mon. Tril. N. A., 1832p. 18.?Portlock, Rep. Geol, Londonderry, 18-13, p. 299.?Biu-meister, OrgderTril., Beriin, 1843, p. 118.?Goldfuss, Neuee Jahrb. f. Min., etc., 1843. pp541, 553.?Emmrich, Neues Jalirb. f. Min., etc., 1815, p. 41.?Rouault, BullSoc. Geol. France, 2d ser., 4, 1847, p. 318.?Hawle and Corda, Abh. d. kbohmischen Gesell. d. Wise., 5, 1847 (extract), p. 54, pi. 3, fig. 29.?McCoy,Ann. Mag. Nat. Hist. (2), 4, 1849, p. 399.?Salter, Mem. Geol. Surv. UnitedKingdom, dec. 2, 1849, pis. 3, 4.?Barrande, Neues Jahrb. f. Min., etc.,1850, p. 779; Syst. Sil. du Centre Boheme, 1, 1852, p. 669.?McCoy, BritishPal. Rocks Fossils, 1854, p. 171.?Augelin, Pal. Scandinavica, 3d ed., Hol-mia?, 1854. p. 41.?Pictet, Trait6 do Pal., 2d ed., 2, 1854, p. 514.?Nieszkowski,Archiv. f. Xaturk. Liv-, Ehet- u. Kurl. (1), I, 1857, p. 579.?Hitchcock,G?ol. Vermont, 1, 1862, p. 280.?Volborth, Mem. I'Acad. Imp. Sci. St. Peters- BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 661ILLiENUS?Continued.bxirg, 7th ser., 6, 1863, p. 2.?Chapman, Canadian Jour. n. b., 8, 1863, p. 30. ? Expos. Min., Geol., Canada, 1864, p. 138.?Salter, Mon. British Tril., Pal.Sec, 1867, pp. 180, 182.?Malaise, Desc. Terr. Sil. du Centre de la Belgique,1873, p. 85.?Steinhardt, Beit. z. Naturk. Preus. Phys.-Oekon. Gesell.,Konigsberg, 1874, p. 40.?Holm, Bihang K. Svenska Vet.-Hand., 7, 1882, pp.12, 15.?Zittel, Handbuchd. Pal., 2, 1885, pp. 610, 611.?Holm, Mem. I'Acad.Imp. Sci. St. Petersburg, 7th per., 33, 1886, pp. 18, 20, 42.?Clarke, Jour.Morph., 2, 1888, pp. 254, 264.?Miller, N. A. Geol. Pal., 1889, p. 550.Koken, Die Leitfossilien, Leipzig, 1896, p. 28, fig. 17, figs. 1-3.?Beecher, Amer.Jour. Sci., 4th ser., 3, 1897, p. 104, pi. 3, fig. 19.?Reed, Geol. Mag., dec. 4,1, 1898, p. 499.?Beecher, Zittel-Eastman Textb. Pal., 1, 1900, p. 630.?Grabau, Bull. New York State Mus. 45, 1901, p. 222.?Jaekel, Zeits. d. d.geol. Gesell., 53, 1901, p. 149.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901,p. 222.?Lindetrom, Kongl. Sven. Yet.-Akad. Handl., 34, 1901, pp. 25, 26,57.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 292.?Raymond,Zittel-Eastman Textb. Pal., 1913, p. 719.Illaenus aboynensis Whiteaves.Illsenus abojmensia Whiteaves, Geol. Surv. Can., Pal. Foss., 3, pt. 2, 1895, p. 108,pi. 15, figs. 7-8.Niagaran (Guelph): Aboyne, Ontario.Illaenus amblguus Foerste.Illsenus ambiguus Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 106, pi. 14,figs. 9a, 9b, lOa-lOc, 11; 15th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1887, p. 480, fig. 3, p. 478; Bull. Sci. Lab. Denison Univ., 2, 1887, p. 94;Proc. Boston Soc. Nat. Hist., 24, 1889, p. 267; Geol. Surv. Ohio, 7, 1893, p.525, pi. 26, 9a-9b, lOa-lOc, 11.L^pper Medinan (Brassfield): Dayton, Ohio; Hanover, Indiana.Illaenus americanus (Billings).Illanus crassicauda Hall (not Wahlenberg), Pal. New York, 1, 1847, p. 24, pi, 4(bis), fig. 13.?Marcou, Geol. Map U. S., Boston, 1853, p. 22, pi. 1, fig. 2.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 215, pi. 18, fig. 5; pi, 15, fig, 15;pi. 3, fig. 13; Manual Geol., 1860, p. 100, fig, 89,?Lincklaen, 14th Rep, NewYork State Cab. Nat. Hist., 1861, pi. 3, fig. 9,?Hitchcock, Geol. Vermont, 1,1862, p. 280.?Chapman, Canadian Jour., n. s., 8, 1863, p. 30, fig. 143; p.201, fig. 196a; Expos. Min., Geol. Canada, 1864, p. 138, fig. 143; p. 173, fig.196a.?Meek and Worthen, Geol. Surv, Illinois, 3, 1868, p. 322, pi. 3, fig.la, b.?Chamljerlin, Geol. Wisconsin, 1, 1883, p, 160, fig.?Brainerd andSeely, Bull. Amer, Mus, Nat. Hist.', 3, 1890, p. 22.?Clarke and Ruedemann,Bull. New York State Mus., 65, 1903, p. 716.lUfenus americanus Billings, Canadian Nat. Geol., 4, 1859, p. 371; Pal. Foss., 1,Geol. Surv. Canada, 1865, p. 329, fig. 316a-d, 318.?Clarke, Geol. Minnesota,3, pt. 2, 1894, p. 714, figs. 20-23.?WTiiteaves, Pal. Foss., Geol. Surv, Canada,3, pt. 3, 1897, p. 234.?Ruedemann, Bull. New York State Mus., 49, 1901, p.61.?Raymond and Narraway, Ann. Carnegie Mus., 4, nos. 3, 4, 1908, pi. 60,figs. 1-3.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 295, fig. 1604.lUasnus taurus Hall, Rep. Geol. Sm-v. Wisconsin, 1861, p. 49.?Meek and Worthen;Geol. Surv. IIHnois, 3, 1868, p. 320, pi. 3, fig. 2.?Miller, N. A. Geol. Pal.,1889, p. 551, fig, 1017.?Whitfield, Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895,p. 73, pi, 12, figs. 4-9.?Rowley, Missouri Bur. Geol. and Mines, 2d ser., 8;1908, p, 57, pi, 15, fig. 1.Trenton: Ottawa, L'Original, etc., Canada; New York; Illinois; Wisconsin,Minnesota; etc. 662 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. nisenus angustlcollls Billings.Illaenua angusticollis Billings, Canadian Nat. Geo!., 4, 1859, p. 376, fig. 10; Gcol.Canada, Geol. Sun-. Canada, 18G3, p. irjl, fig. I13a-<1.?Raymond and Nar-raway, Ann. Carnegie Mus., 4, 1C08, p. 245, pi. 61, figs. 1-5.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 204.Black River: Island of St. Joseph, Grants Island, Lake Huron; La Petite Chau-diere, Hull, Canada.iLLasNus ARCTURUs Hall. See Thaleops arcturus.nisenus arcuatu.s Billings.Illwnus arcuatus Billings, PaL Foss., 1, Geol. Surv. Canada, 1865, p. 279, fig. 265.Chazyan (Quebec-P): Cow Head, Newfoundland.IIlaBnus argentlnus Kayser.Ilhi^nus argentinus Kayser, Zeits. d. d. geol. Gesell., 49, 1897, p. 283, pi. 7, figs.8, 9.Ordovician: East of Jachal, San Juan, Argentina.Ill^nus armatus Hall. See Bumastus armatus.IlljENUs (Bumastus) barriensis Hall. See Bumastus ioxus.Illaenus bayfleldl Billings.Illsenus Bayfieldi Billings, Canadian Nat. Geol., 4, 1859, p. 369, figs. 4-6; Geol.Canada, Geol. Surv. Canada, 1863, p. 133, fig. 65a-c.?Raymond, Ann.Carnegie Mus., 3, 1905, p. 348, pi. 13, figs. 11, 12; 7th Rep. Vermont StateGeol., 1910, pi. 35, figs. 11, 12.Chazyan (Mingan): Mingan Islands, Canada.Ill^nus chicagoensis Weller. See Bumastus chicagoensis.IlIvEnus clavifrons Billings. See Thaleopa clavifrons.Illoiuus conlfrons Billings.Illaenus conifrons Billings, Canadian Nat. Geol., 4, 1859, p. 378, fig. 11; Geol.Canada, Geol. Surv. Canada, 1863, p. 151, figs. Ilia, b.Uydrolaenus coiijfrous Salter, Mon. British Tril., Pal. Soc, 18G7, p. 1S2 (gen. rcf.).Chazyan (Mingan) : Mingan Islands, Canada.Illtrniis conradi Billings.lUajnus Conradi Billings, Canadian Nat. Geol., 4, 1859, p. 372, figs. 7-9; Geol.Canada, Geol. Surv. Canada, 1863, p. 151, figs. llOa-c.?Vogdes, Occ. PapersCaliiornia Acad. Sci., No. 4, 1893, p. 330.?Raymond ami Narraway, Ann.Carnegie Mus., 4, 1908, p. 245, pi. 60, figs. 9, 10.Black River (Leray): Falls of La Petite Chaudiere, vicinity of Ottawa, Canada.Illucnus oon.slmlli.s Billings.lllanu:^ con.'^imiiis Billings, Pal. Foss., 1, Geol. Siu'\'. Canada, 1865, pp. 277, 331,figs. 2G3a-c, 317, 31Sa.?Grabau and Shimer, N. A. Index Fossils, 2, 1910,p. 294, fig. 1604a.Chazyan (Quebec?L, M, N); Point Rich and Table Head, Newfoundland.Illicnus con.subrlnu.s Billings.lUajnus consobrinus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 280, figs.266a, b; p. 332, footnote, figs. 320a-c.Chazyan (Quebec?P): Cow Head, Newfoundland. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 663lUaenus cornigerus Hall and T\Tiitfield.lUaenus cornigerus Hall and "WToitfield, 24tli Rep. New York State Mus. Nat.Hist., 1872, p. 186; 27tli Rep. New York State Cab. Nat. Hist., 1875, pi. 13,figs. 20, 21.Niagaran (Louisville?): Falls of the Ohio.Ill^xus crassicauda? Hall (1847). See Bumastus erastusi.Ill^nus crassicauda of American authors. See lUsenus americanus.Illenus crassicauda AMERICANA Billings. See Illsenus americanus.Ill^nus cuniculus Hall. See Bumastus cuniculus.lUaenus danieisi Miller and Gurley.lUaenus danieisi Miller and Gurley, Bull. Illinois Sta,te Mus. Nat. Hist., 3, 1893,p. 76, pi. 7, figs. 3-5.Niagaran: Bonfield, near Kankakee, IlUnois.Illsenus daytonensis Hall and Whitfield.Illsenus daytonensis Hall and ^^'Tiitfield, Pal. Ohio, 2, 1875, p. 119, pi. 5, figs14-16.?Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 104, pi. 14figs. 4a-4b, 6, 7a-7c; Bull. Sci. Lab. Denison Univ., 2, 1887, p. 93, pi. 8figs. 6-7; Geol. Surv. Oliio, 7, 1895, p. 525, pi. 26, figs. 4a-4b, 6, 7a-c; pi27, figs. 6, 10a; Proc Boston Soc. Nat. Hist., 24, 1889, p. 268; Jour. Geol., 111903, p. 706.Upper Medinan (Brassfield): Dayton, Fair Haven, etc., Ohio.Ill^enus depressus Foerste.lUaenus depressus Foerste, Cincinnati Soc. Nat. Hist. Jom-., 21, 1909, p. 33.Clinton (West Union): Spring, Big Salt Lick Creek, and near Martins, LewisCounty, Kentucky.Illsnus erastusi Raymond. See Bumastus erastusi.Illaenus fraternus Billings.Illacnus fraternus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 276, figs.202a, b.Chazyan (Quebec?L, N, P): Point Rich, Table Head, and near Portland Creek,Newfoundland.Ill^nus globosus Billings. See Bumastus globosus.Ill?;nu8 graftonensis Waller. See Bumastus graftonensis.Illaenus grandls Billings.Illaenus grandis Billings, Canadian Nat. Geol., 4, 1859, p. 380; Cat. Sil. Foss.Anticosti, Geol. Surv. Canada, 1866, pp. 27, 60 (loc. ref.).Anticostian (Becsie River?Chicotte): Charleton Point, Gamache Bay, and South-west Point, Anticosti.Ill^nus HARRIS! Waller. Sea Bumastus harrisi.Ill^nus herricki Foerste. See Thaleops ovata.Ill^nus imperator Hall. See Bumastus imperator. .Illaenus Incertus Billings.Illaenus incertus Billings, Pal. Fobs., 1, Geol. Surv. Canada, 186C, p. 332, fig319a, b.Canadian (Beekmantown): Stanbridge, Quebec. 664 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ill^nus indeterminatus Raymond. See Bumastua limbatufl.IhLMNVB INDETEEMINATU8 Walcott. See Bumasttis indeterminatufl.Illsnus INSIONI8 Hall. See Bumastua insignin.luuENUs (BuMASTUs) IN8IONIS Meek. See lUsenua springfieldensis.It.t.^nus I0XU8 Chamberlin. See Bumastua ioxus.Illsenus latlaxlatus Raymond and Narraway.lUcenus latiaxiatus Raymond and Narraway, Ann. Carnegie Mus., 4, 1908, p. 243,pi. GO, figs. 4-8.?Grabau and Sliimer, N. A. Index Fossils, 2, 1910, p. 295.Black River: Tetreauville and Mechanicsville, near Ottawa, Canada; Patterson-ville and Newport, New York.Illsenus latidorsatus Hall.Illcenua latidorsata Hall, Tal. New York, 1, 1847, p. 230, pi. 60, figs. Ca, b.Trenton: Near Watertown, New York.lLKaENU8 MADI80NIANU8 Whitfield. See Bimiastus niagarensis.IhLMVivs MADI80NIANUS var. DEPRES8A Foerste. See Bumastua niagarensis.Ill^nu8 madisonianus var. elongatu8 Foerste. See Bumastus niagarensis.IlljENU8 milleri Billings. See Bumastus milleri.iLLiENus (NiLEus) MiNNESoTENsis Foerste. See Nileus vigilans.Ilu?nu8 niagarensis 'NMiitfield. See Bumastus niagarensis.iLLiENus ORBicAUDA Billiugs. Sce Bumastus orbicaudatus.iLLiasNus ORBICAUDATUS Billings. See Bumastus orbicaudatus.Iluenus OVATU8 Hall. See Thaleops ovata.Ill^nus pterocephaxus Whitfield. See Thaleops? pterocephalus.Illaenus punctatu.s Raymond.Illanus punctatus Raymond, Annals Carnegie Mus., 3, 1905, p. 347, pi. 13, fig. 10;7th Rep. Vermont State Geol., 1910, p. 226, pi. 35, fig. 10.Chazyan (Crown Point, Valcour): Crown Point and Valcoiu- Island, New York.Illoenus simulator Billings.lUsenus simulator Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 327, fig.315a, b.Canadian (Beekmantown): Stanbridge, Quebec.Illa>nu8 sprlngflcldcnsls Meek.Illa;nus (Bumastus) insignis? Meek, Pal. Ohio, 1, 1873, p. 189, figs. A, B, pi. 15,figs. 5a, c.Illsenus springfieldensis Meek, Pal. Ohio, 1, 1873, p. 129,Niagarau (Guelph): Springfield, Ohio.Ill?nu8 TAURU8 Hall. See Illsenus americanus.IlliPnus transTorsalls Wellcr.lUttjnus transversalis Wcller, Bull. Cliicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2,1907, p. 224, pi. 16, figg. 7-9.Niagaran (Racine): Bridgeport, Illinois. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 665iLLiENUs TRENTONENSis Emmons. Soo Bumastua milleri.Illaenus tumidlfrons Billings.IlLfnus tumidifrons Billings, Pal. Fosa., 1, Geo!. Surv. Canada, 1865, p. 278,fig. 264a, b.Chazyan (Quebec P.): Cow Head, Newfoundland.ILL.ENUS viNDEX BUlings. See Thaleopa vindex.Ill^nus (Bumastus) worthenanus Meek and Worthen. See Bumaatua armatua.Inachus pervetus Conrad. See Euomphalua pervetua.Inachus undatus Emmons (part). See Plectoceras? iindatus.IxACHUs UNDATUS Courad (part). See Plectoceras halli.INDIANOCRINUS Miller and Gurley. Genotype: I. punctatus Miller and Gurley.Indianocrinus Miller and Gurley, Bull. Illinois State Mua. Nat. Hist., 7, 1895,p. 83.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 748.?Bather, Treatise onZool. (Lankester), pt. 3, 1900, p. 145.Indianocrinus punctatus Miller and Gurley.Indianocrinus punctatus Miller and Gurley, Bull. Illinois State Mua. Nat. Hiat., 7,1895, p. 83, pi. 5, figs. 8-13.?Miller, N. A. Geol. Pal., 2d App., 1897, p. 748,fig. 1362.Niagaran (Laurel): St. Paul, Indiana.INOCAULIS Hall. Genotype: I. plumulosa HallInocaulis Hall, Amer. Joiu". Sci. Arts, 2d ser., 11, 1851, p. 401; Pal. New York2, 1852, p. 176; 20th Rep. New York State Cab. Hist., 1868, p. 218, rev. ed.1870, p. 252.?Nicholson, Mon. British Grapt., 1872, p. 131.?Spencer, BullMus. IJniv. State Missouri, 1, 1884, p. 33; Trans. Acad. Sci. St. Louis, 4, 1S84p. 562, 583.?Miller, N. A. Geol. Pal., 1889, p. 193.?James, Jour. CincinnatiSoc. Nat. Hist., 14, pt. 2, 1892, p. 161.?Pocta, Syst. Sil. Centre Boheme, 8pt. 1, 1894, p. 197.?Elles and Wood, Mon. British Grapt., Pal. Soc, 1903, p34.?Ruedemann, Mem. New York State Mus., 2, 1908, p. 185.Inocaulis anastomotica Ringueberg. See Palceodictyota anastomotica.Inocaulis arbuscula Ulrich. See Dictyonema arbusculum.Inocaulis bella Hall and Whitfield. See Palseodictyota bella.Inocaulis Canadensis Whiteavea. See Dictyonema canadense.Inocaulis cervicornis Spencer.Inocaulis cervicornis Spencer, Canadian Nat., 10, 1882, p. 165, nom. nud.; Bull.Mus. Univ. State Missouri, 1, 1884, p. 37, pi. 5, fig. 5; Trans. Acad. Sci. St.Louia, 4, p. 587, pi. 5, fig. 5.?Gurley, Jom-. Geol., 4, 1896, pp. 99, 308.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 51, fig. 65.Niagaran dolomite: Hamilton, Ontario.Inocaulis congregatus Gurley.Inocaulis congregatua (Gurley MS.) Baasler, Bull. U. S. Nat. Mua., 65, 1909,p. 54, fig. 70.Niagaran dolomite: Hamilton, Ontario. 666 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Inocaulls dlffusus Spencer.Inocaulis diffusa Spencer, Canadian Nat., 10, 1882, p. 165, nom. nud.; Bull. Mu3.Univ. State Missouri, 1, pp. 15, 36, 37, pi. 5, fig. 4; Trans. Acad. Sci. St. Louis,4, pp. 565, 586, 587, pi. 5, fig. 4.?Gurley, Jour. Geol., 4, 1896, pp. 99, 308.?Baasler, Bull. U. S. Nat. Mus., 65, 1909, pp. 52, 53, figs. 67, 68.Niagaran dolomite: Hamilton, Ontario.Inocaulis diffusus cra.sslramus Gurley.Inocaulis diffusus crassiramus (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65,1909, pp. 53, 54, fig. 69.Niagaran dolomite: Hamilton, Ontario.Inocaulis dlraricatus Hall.Inocaulis divaricata Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882,p. 225, pi. 1, fig. 3; Trans. Albany Inst., 10, 1883, p. 58.?Spencer, Bull. Mus.Univ. State Missouri, 1, 1884, p. 35; Trans. Acad. Sci. St. Louis, 4, 1884, p.585.?Gurley, Jour. Geol., 4, 1896, pp. 99, 309.?Ruedemann, Mem. NewYork State Mus., 11, pt. 2, 1908, p. 191.Niagaran (Waldron): Waldron, Indiana.Inocaulis flabellum James. See Licrophycua flabellum.Inoeaulis granti (Dawson).Buthotrepliis Grantii Dawson, Quart. Jour. Geol. Soc. Ix)ndon, 4G, 1890, p. 613.fig. 16; p. 614, fig. 17.Inocaulis vegetabiUs (Gurley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 55pi. 5, fig. 1.Niagaran dolomite: Hamilton, Ontario.Inocaulls phycoldes Spencer.Inocaulis phycoides Spencer, Canadian Nat., 10, 1882, p. 1G5, nom. nud.; Bull.Mus. Univ. State Missouri, 1, 1884, p. 38, pi. 5, figs. 6, 7, 7a; Trans. Acad. Sci.St. Louis, 4, 1884, p. 588, pi. 5, figs. 6, 7.?Gurley, Jour. Geol., 4, 1896, pp.99, 309.?Bassler, Bull. U. S. Nat. Mus., 05, 1909, pp. 51, 52, fig. 66.Niagaran dolomite: Hamilton, Ontario.Inocaulls plumulosus Hall.Hall, Rep. Sur\-. 4th Dist. New York, 1843, p. 116, fig. 1.Inocaulis plumulosa Hall, Pal. New York, 2, 1852, p. 176, pi. 40G, figs. 2a, b; Geol.Surv. Canada, dec. 2, 1865, p. 18, fig. 26; 20th Rep. New York State Cab.Hist., 18G8, p. 185, fig. 28; rev. ed., 1870, p. 215, fig. 28.?Nicholson, Mon.British Grapt., 1872, p. 132, fig. 73.?Spencer, Canadian Nat., 8, 1878, p. 458;ibid., 10, 1882, p. 166.?Spencer, Bull. Mus. Univ. State Missouri, 1, 1884,pp. 14, 34, 35, pi. 5, fig. 1; Trans. Acad. Sci. St. Louis, 4, 1884, pp. 564, 584,585, pi. 5, fig. 1.?Pocta, Sil. Syst. Boheme, 8, pt. 1, 1894, p. 197.?Gurley,Jour. Geol., 4, 1896, pp. 99, 309.?Miller, N. A. Geol. Pal., 1889, p. 193, fig.183.?Ruedemann, Mem. New York State Mus., 11, 1908, p. 188, pi. 2, fig. 4;pi. 7, figs. 1, 2, fig. 93.?Bassler, Bull. U. S. Nat. Mus., 05, 1909, pp. 46-49, figs.59-02.Clinton (Rochester): I^ockport, Rochester, etc.. New York.Niagaran dolomite: Hamilton, Ontario.Plesiotype8.?Cat. No. 54281, U.S.N.M.Inocauus? problematica Spencer. See Dendrograptue? problomaticua. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 667InocauIIs ramulosus Spencer.Inocaulis ramulosa Spencer, Canadian Nat., 10, 1882, p. 165, nom. nud.; Bull.Mus. Univ. State Missouri, 1, p. 38, 1884, pi. 6, fig. 1; Trans. Acad. Sci. St.Louis, 4, 1884, p. 588, pi. 6, fig. 1.?Gurley, Jour. Geol., 4, 189G, pp. 99, 309.?Bassler, Bull. U. S. Nat. Mus., 65, 1909, pp. 49, 50, figs. 63, 64.Niagaran dolomite: Hamilton, Ontario.InocauIIs? strlctus Gurley.Inocaulis? strictus (Gurley MS.) Baasler, Bull. U. S. Nat. Mus., 65, 1909, p. 54,pi. 2, fig. 6; fig. 71.Niagaran dolomite: Hamilton, Ontario.Inocaulis? thallosus Gurley.Inocaulis? thallosus (Gm-ley MS.) Bassler, Bull. U. S. Nat. Mus., 65, 1909, p. 55,pi. 2, fig. 5.Niagaran dolomite: Hamilton, Ontario.Inocaxjlis vegetabilis (Giurley) Bassler. See Inocaulis granti.Inocaulis walkeri Spencer. See Acanthograptus walkeri.Intricarlv Hall. See Chasmatopora Eichwald.lOCRINUS Hall. Genotype: Actinocrinus subcrassua Meek and Worthen.locrinus Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 210 (extract1866, p. 5).?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelpliia,1879, pp. 285, 293 (Rev. Pal., pt. 1, pp. 62, 70); ibid., 1886, p. 127; ibid., 1890,p. 380; Amer. Jour. Sci., 3d ser., 26, 1883, pp. 370, 376, fig. 4.?Walcott, 35thRep. New York State Mus. Nat. Hist., 1884, p. 210.?Miller, N. A. Geol.Pal., 1889, p. 256, fig. 345.?Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 1890,p. 324, pi. 14, fig. 5; pi. 15, fig. 2; Kongl. Sv. Vet. Akad. Handl., 25, 1893,p. 21; Geol. Mag., dec. 4, 3, 1896, p. 73; ibid., dec. 4, 6, 1899, p. 42, footnote,fig. 18; Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 145, fig. 26,1; 28; 58, 1.?Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 153.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 713.?Zittel,Handb. Pal., 1, 1910, p. 151.?Springer, Zittel-Eastman Textb. Pal., 2d ed.,1913, p. 212.locrinus crassus (Meek and Worthen).Heterocrinus crassus Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia,1865, p. 147; Geol. Surv. Illinois, 3, 1868, p. 324, pi. 4, figs, la-c; Geol. Surv.IllinoiB, 6, 1875, p. 493, pi. 23, fig. 1.locrinus crassus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Pliiladelphia,1879, p. 295 (Rev. Pal., pt. 1, p. 72) (gen. ref.).Richmond (Maquoketa): Kendall County, Illinois.locrinus subcrassus Meek and Worthen).Actinocrinus subcrassus Meek and Worthen, ProCc Acad. Nat. Sci. Philadelplua,(1), 17, 1865, p. 148.Heterocrinus subcrassus Meek and Worthen, Geol. Surv. IlUnois, 3, 1868, p. 325,pi. 4, figs. 5a-d.?Dyche, Science, 20, 1892, p. 66; Amer. Geol., 10, 1892, p.30; Jour. Cincinnati Soc. Nat. Hist., 15, 1892, p. 101.Heterocrinus (locrinus) subcrassus Meek and Worthen, Proc. Acad. Nat. Sci.Philadelphia, (1), 1871, 23 (3), 1, p. 310; Geol. Surv. Oluo, 1, pt. 2, p. 15,pi. 1, figs. 9a, b. 668 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.locrluus subcrassus?Continued.locrinuB subcrassus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia,1879, p. 295 (Rev. Pal., pt. 1, p. 72); ibid., 1890, p. 381, pi. 10, fig. 5.?Bather,Geol. Mag., dec. 4, 6, 1899, p. 35, fig. 11.?Miller, N. A. Geol. Pal., 1889,p. 257, fig. 346; Treatise on Zool., pt. 3, Ecliinoderma, London, p. 120, fig.26, 1.?Cumings, 32d Ann. Ilep. Dep. Geol. Nat. Res. Indiana, 1908, p. 726,pi. 4, figs. 7, 7a.Heterocrinus? (locrinue) Polyxo Hall, 24th Rep. New York State Cab. Nat. Hist.,1872, p. 212, pi. 5, figs. 1-4 (extract, 1871).Trenton-Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky.locrlnus trentononsis Walcott.locrinus trentonensis Walcott, 35th Rep. New York State Mub. Nat. Hist., 1884,p. 210, pi. 17, figs. 7, 8.Trenton: Trenton Falls, New York.ISCHADITES ^Imx'hison. Genotype: Tetragonis murchisoni Eichwald.Ischadites Murchison, Siluria, 1837, p. 697.?Winchell and Marcy, Mem. BostonSoc. Nat. Hist., 1, 1865, p. 86.?Gumbel, Abh. d. Math.-Phys. Clasee d. k.Bay. Akad. d. Wise., 12, 1 Abth., 1875, p. 172.?Nicholson and Etheridge,Mon. Sil. Foss. Girvan Dist., 1878, p. 19.?Zittel., Handb. Pal., 1, 1880, p.728.?Roemer, Leth. Geog., 1, Theil, Leth. Pal., Erete Lief, 1880, p. 291.?Hinde, Qtiart. Jour. Geol. Soc. London, 11, 1884, p. 810.?James, J. F., Jour.Cincinnati Soc. Nat. Hist., 9, 1886, pp. 246, 249.?SclJuter, Zeits. d. d. geol.Geeell., 39, 1887, p. 7.?Geinitz, ibid., 40, 1888, p. 19.?Rauff, ibid., 40, 1888,p. 606.?Hinde, Mon. British Foes. Sponges, Palaeontographical Soc., 1888,p. 119.?Rauff, Abh. d. math.-phys. Classe d. k. bayer. Akad. Wisa., 18, 3,Abth., 1892, p. 692.?Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895,p. 61, pi. F, figs. 5-10; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 72.Palseospongia D'Orbigny, Prodr. de Pal., 1, 1849, p. 26.?Pictet, Traite de Pal.,2d ed., 4, 1857, p. 540.?Bornemann, Nova Acta der Ksl. Leop. -Carol.Deutechen Akad. der Natur., 51, 1886, p. 21.?Hinde, Geol. Mag., dec. 3, 4,1887, p. 228.?Miller, N. A. Geol. Pal., 1889, p. 162.?Rauff, Neues Jahrb. f.Min., Geol. Pal., 2, 1891, p. 92. (Genotype, cyatluformis Hall.)Tetragonis Eichwald, Unvelt. Russlands, heft 2, 1842, p. 81.?Chapman, CanadianJour., n. B., 2, 1857, p. 304.?Billings, Pal. Foss., 1, Geol. Surv. Canada,1865, p. 386.?Roemer, Leth. Geog., 1 Theil, Leth. Pal., Erste Lief, 1880, p.303.?Zittel, Handb. Pal., 1, 1880, p. 728.?Roemer, Zeits. d. d. Gesell., 35,1883, pp. 705, 707.Selenoides Owen, Geol. Surv. Wisconsin, Iowa, and Minnesota, 1852, p. 586.Dictyocrinus Hall, Pal. New York, 3, 1859, p. 135.Receptaculitea (part) Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 378.Ischadites canadensis Billings.Ischadites canadensis Billings, Geol. Canada, 1863, p. 309, fig. 313; p. 327. ? Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, Pal., 1895 (ext., 1893),p. 66.ReceptacuUtes canadensis Billings, Pal. Foss., 1, 1865, p. 384, fig. 363; CanadianNat. Geol., 2d ser., 2, 1865, p. 191, fig. 10.?Roemer, Leth. Pal., 1880, p. 289.?Hinde, Quart. Jour. Geol. Soc. Londou, 40, 1884, p. 844.Niagaran (Lockport?): Township of Esquesing, Ontario.Ischadites clrcularls (Emmons).ReceptacuUtes circularia Emmons, Amer. Geology, 1, pt. 2, 1855, p. 230, fig. 82;Man. Geol., 1860, p. 103, fig. 93.?Lesley, Geol. Surv. Pennsylvania, Rep. P4,1889, p. 852, fig.?James, Jour. Cincinnati Soc. Nat. Hist., 14, p. 63, pt. 1. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 669Ischadites circularls?Continued.Ischadites circularis Winchell and Schuchert, Geol, Minnesota, 3, pt. 1, 1895, p.65.Lorraine shales: New York.Ischadites cyathiformis (Hall).cyathiformis Hall, Pal. New York, 1, 1847, p. 72, pi. 25, figs. 6ar-6c.Ischadites cyatliiformis Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895,p. 65 (extr., 1893).Palseospongia cyathiformis d'Orbigny, Prodr. d. Pal., 1, 1849, p. 2G (gen. ref.).Palaeochonia cyathiformis Fromental, Introduction Etude Eponges Foss., Caen.,1859, p. 45.Mohawkian (Chambersbiirg): Carlisle, Pennsylvania.Ischadites dickhauti James. See LepidoUtes dickhauti.Ischadites elongatus James. See Lepidolites dickhauti.Ischadites hemisphekicus Winchell and Marcy. See ReceptacuUtea hemispher-icus.Ischadites Insularis (Billings).Receptaculites? insularis BilUngs, Cat. Siliu-ian Foss. Anticosti, Geol. Surv.Canada, 1866, p. 29.?Hinde, Quart. Jour. Geol. Soc. London, 40, 1884, p.846.?Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895, p. 61 (extr.,1893).Gamachian (Ellis Bay): Gamache Bay, Anticosti.Ischadites lowensis (Owen).Selenoides iowensis Owen, Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, p. 587,pi. 2B, fig. 13.Receptaculites (Selenoides) iowensis Hall, Rep. Geol. Surv. Wisconsin, 1861, p.14.?Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 385, fig. 364.?Hall,16th Ann. Rep. New York State Cab. Nat. Hist., 1863, pp. 68, 69.?BillingsCanadian Nat. and Geol., 2d ser., 2, 1865, p. 191, fig. 11.?Lesley, Geol. Sm-v.Pennsylvania, Rep. P 4, 1889, p. 852, fig.?Winchell and Schuchert, Geol.Minnesota, 3, pt. 2, 1893, p. 64, pi. F, figs. 5-6.?Whiteaves, Pal. Foss., Geol.Surv. Canada, 3, pt. 3, 1897, p. 143.?Schuchert, Proc. U. S. Nat. Mus., 22,1900, p. 153.Receptaculites (Ischadites) iowensis Grabau and Shimer, N. A. Index Fossils, 1,190G, p. 19, fig. 30.Orbitulites reticulata Owen, Geol. Rep. Iowa,Wisconsin, Illinois, 1844, pi. 18, fig. 7.Heceptaculites reticulata Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 11(gen. ref.).Receptaculites fungosum Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 15.?Whit-field, Mem. Amer. :Mus. Nat. Hist., 1, pt. 2, 1895, p. 45, pi. 5, figs. 5, 6.Receptaculites globulare Hall, Rep. Geol. Surv. Wisconsin, 1861, p. 16.?Meekand Worthen, Geol. Surv. Illinois, 3, 1868, p. 301, pi. 2, figs. 2a-b.?Whitfield,Mem. Amer. Mus. Nat. Hist., 1, pt. 2, 1895, p. 44, pi. 5, fig. 7.Receptaculites sp. Meek and Worthen, Geol. Surv. Illinois, 3, 1868, pt. 3, p. 301,pi. 2, figs, la, b.Ischadites koenigii (part) Hinde, Quart. Jour. Geol. Soc. London, 40, 1884, p. 836.Trenton (Prosser-Galena): Iowa; Illinois; Wisconsin; Minnesota and Manitoba.Ischadites kcbnigh Hinde (part). See Ischadites iowensis and I. subturbinatus. 670 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Ischadltes subturblnatus Hall.Receptaculites eubturbinatus Hall, Trans. Albany Inst., 4, 1863, p. 224; 28tliRep. New York State Mus. Nat. Hist., 1879, p. 103, pi. 3, figs. 1-3 (doc. ed.,1875 (1877), pi. 3, figs. 1-3); 11th Rep. State Geol. Indiana, 1882, p. 221, pi. 2,figs. 1-3.?Lesley, Geol. Sun\ Pennsylvania, Rep. P4, 1889, p. 855, text figs.Ischadites subturbinatus Winchell and Schuchert, Geol. Minnesota, 3, pt. 1, 1895(ext., 1893), p. 66.Ischadites koenigii (part) Hinde, Quart. Jour. Geol. Soc. London, 40, 1884, p. 836.Niagaran (Waldron): Waldron, Indiana.Ischadites tesselatus Winchell and Marcy. See Receptaculites tesselatus.ISCHTRINIA Billings. Genotype: I. winchelli Billings.Ischyrinia Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 186G, p. 16. ? Miller, N. A. Geol. Pal., 1889, p. 483.Ischyrina Clarke, Mem. New York State Mus., 6, 1904, p. 406, expl. pi. 9.Observation.?Probably the same as Technophorus.Ischyrinia plicata Billings. See Technophorus plicata.Ischyrinia winchelli Billings.Ischyrinia Winchelli Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1886,p. 16, figs. 4a-4c.?Miller, N. A. Geol. Pal., 1889, p. 483, fig. 834.Richmond (English Head and Charleton): Macasty Bay, Anticosti.Plastotype.?Cat. No. 46204, U.S.N.M.ISCHTRODONTA Uhich. Genotype: I. truncata Uhich.Anodontopsis (part) Meek, Amer. Jour. Sci. Arts, 3d ser., 2, 1871, p. 209; also1873, Ohio Pal., 1, p. 141.Ischyrodonta Ulrich, Amer. Geol., 6, 1890, p. 173; Geol. Surv. Ohio., 7, 1893,p. 671.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.981.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 416.?Miller,N. A. Geol. Pal., 1st App., 1892, p. 700.Ischyrodonta curta Foerste. See Ischyrodonta unionoidee.Ischyrodonta declplens Ulrich.Ischyrodonta decipiens Ulrich, Geol. Surv. Ohio, 7, 1893, p. 673, pi. 54, figs.16-19.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 999,pi. 45, figs. 3-3c.Richmond (Elkhorn): Near Richmond, Inoiana.Cotypes.?Cat. Nos. 46205, 46206, U.S.N.M.Ischyrodouta olougata Ulrich.Ischyrodonta elongate Ulrich, Amer. Geol., 6, 1890, p. 175, figs. 12a-c; Geol. Surv.Ohio, 7, 1893, p. 675, pi. 54, figs. 20, 21.?Cumings, 32d Ann. Rep. Dep. Geol.Nat. Res. Indiana, 1908, p. 1000, pi. 45, figs. 4, 4a.Richmond (AMiitewater): Oxford, Oliio; Richmond, Indiana.JJolotypc and pksiotypc.?Cat. Nos. 46207, 46208, U.S.N.M.Ischyrodonta mlseneri Ulrich.Ischyrodonta miseneri Ulrich, Rep. Geol. Surv. Ohio, 7, 1893, p. 675, pi. 54, figs.10, 11.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.1001, pi. 45, figs. 5, 5a.Cypricardites miseneri Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gon. ref.).Richmond (Whitewater): Richmond, Indiana.Eolotyp?.?C&t. No. 46209, U.S.N.M. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 671Ischyrodonta modlollformis Ulrich.Ischyrodonta modioliformia Ulrich, Geol. Surv. Ohio, 7, 1893, p. 676, pi. 54, figs.4-9.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1001,pi. 45, figs. 6, 6e.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 416,fig. 539.Richmond (Whitewater): Richmond, Indiana.Cotypes?Cat. No. 46210, U.S.N.M.Ischyrodonta ovalls Ulrich.Ischyrodonta ovalis Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota,1892, p. 242, fig. 27; Geol. Surv. Ohio, 7, 1893, p. 674, pi. 54, figs. 12-15;Geol. Minnesota, 3, pt. 2, 1894, p. 477, fig. 35.?Cumings, 32d Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1908, p. 1002, pi. 45, figs. 7-7b.Cypricardites ovalis Miller, N. A. Geol. Pal., 2d App., 1897, p. 781 (gen. ref.).Richmond (Whitewater) : Near Richmond, Indiana.Holoty2)6.?C&t. No. 46211, U.S.N.M.Ischyrodonta truncata Ulrich.Ischyrodonta truncata Ulrich, Amer. Geol., 6, 1890, p. 174, fig. 11.?Miller, N. A. ' Geol. Pal., 1st App., 1892, p. 700, fig. 1258.?Ukich, Geol. Surv. Ohio, 7,1893, p. 672, fig. 1.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 1003, pi. 45, figs. 8-8c.?Grabau and Shimer, N..A. Index Fossils, 1,1909, p. 416, fig. 540.Richmond (Whitewater): Oxford, Ohio, and Richmond, Indiana.Cotypes.?Cat. No. 46212, U.S.N.M.Ischyrodonta unionoides (Meek).Anodontopsis? unionoides Meek, Amer. Jour. Sci. Arts, 2, 1871, p. 299.Anodontopsis (Modiolopsis?) unionoides Meek, Pal. Ohio, 1, 1873, p. 141, pi. 12,figs. 2a, b.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 227.Modiolopsis unionoides Miller, N. Amer. Geol. Pal., 1890, p. 491 (gen. ref.).Ischyrodonta unionoides Ulrich, Geol. Surv. Ohio, 7, 1893, p. 677, pi. 54, figs.1-3.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1004,pi. 46, figs. 1, la.?Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 416,fig. 538.Ischyi-odonta curta Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 298, pi. 3,fig. 14.Maysville (Bellevue): Cincinnati, Ohio, and vicinity. Pulaski shales of NewYork and Canada.Plesiotypes.?Cat. No. 46213, U.S.N.M.IsoARCA LOGANi Woodward. See Ctenodonta nasuta.ISOCHILINA Jones. Genotype: Leperditia Ottawa Jones.Isochilina Jones, Geol. Surv. Canada, dec. 3, 1858, p. 97; Ann. Mag. Nat. Hist.,3d ser., 1, 1858, p. 248; Monthly Microsc. Jour., 4, 1870, p. 191.?Barrande,Syst. Sil. du Centre Boheme, 1, Suppl., 1872, p. 533.?Schmidt, Mem. I'Acad.Imp. Sci. St. Petersburg, 7th ser., 21, No. 2, 1873, p. 8.?Zittel, Handb.Pal., 2, 1885, p. 552.?Vogdes, Annals New York Acad. Sci., 5, 1889, p. 22,pi. 2, fig. 18.?Miller, N. A. Geol. Pal., 1889, p. 551.?Koken, DieLeitfossilien,Leipzig, 1896, p- 40.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 307.?Ukich, Zittol-Eastman Textb. Pal., 1, 1900, p. 643.?Grabau, Bull. NewYork State Mus., 45, 1901, p. 218; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p.218.?Jaekel, Zeits. geol. Gesell., 53, 1901, p. 149.?Grabau and Shimer, N.A. Index Fossils, 2, 1910, p. 341.?Bassler, Zittel-Eastman Textb. Pal., 2ded., 1913, p. 737. 672 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.IsocHiLiNA AMiANA Ulrich. See Isochilia gregaria.IsocHiLiNA AMIANA var. IN8IQNI8 Uliich. See iBochilina cristata.Isochlllna aniii Jones.Isochilina Amii Jones, Cent. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 68,pi. 10, figs. 14a, -b.Trenton: Jyorette, Quebec.Isochilina ainpla Ub-ich.Isochilina ampla Ulricb, Jour. Cincinnati Soc. Nat. Hist., 13, pt. 1, 1891, p. 179,pi. 11, figs. 8a-d.Trenton (Catbeys): Nashville, Tenncdsee.Cotypes.?C&t. No. 41291, U.S.N.M.Isuchillna armata (Walcott).Leperditia (Isochilina) armata Walcott, 35th Rep. New York State Mus. Nat.Hist., 1884, p. 213, pi. 17, fig. 10 (extract, 1883, p. 7).Isochilina kentuckiensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p.179, pi. 11, figs, lla-lld.Black River (Lowville): Russia, Herkimer County, New York; High Bridge andFrankfort, Kentucky.Plesiotype.?Cat. No. 43155, U.S.N.M. (Holotype of I. kentuckiensis.)Isochilina armata pygmsea Ruedemann.Isochilina armata pygmaea Ruedemann, Bull. New York State Mufl.,49, 1901, p.72, pi. 7, figs. 19-25.Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer Comity, New York.Isochilina? cla^lgera (Jones).Beyrichia clavigera Jones, Geol. Surv. Canada, Cent. Micro-Pal., pt. 3, 1891, p.65, pi. 11, fig. 7.Isochilina? cla\dgera Ulrich and Batsler, Proc. U. S. Nat. Mus., 35, 1908, p. 282,fig. 3.Stones River (Pamelia): Aylmcr, Quebec.Plesiotype.?-mond.li^oteloides Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, pp. 36, 67; 7th Rep.Vermont State Geol., 1910, p. 223; Trans, and Proc. Roy. Soc. Canada, 5,3d eer.. sec. 4. 1912, p. 115.Isoteloides angusticaudus (Raymond).Isotelus angusficaudum RajTuond. Ann. Carnegie Mus., 3, 1905, p. 345, pi. 13,figs. 3, 4.Isoteloideti aagusticaudus Raymond, 7th Rep. Vermont State Geo!., 1910. p. 223,pi. 35, figs. 3, 4; pi. 37, fig. 7; pi. 38, fig. 1; pi. 39, fig. 8; Ann. CarnegieMus., 7, 1910, p. 68, pi. 17, fig. 7; pi. IS, fig. 1; pi. 19, fig. 8.?Perkins, Rep.Vermont State Geol., 8th eer.. 1912, pi. 18, fig. 1.Chaz>-an (Cmwn Point. V.nlcour): Valcour Island and Chazy, New York; IsleLa Motte, Vermont. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 675Isoteloides homalouotoldes (Walcott).Asaphus homalonotoides Walcott, Slst Rep. New York State Mus. Nat. Hist.,1879, 1880, adv. sheets Sept. 20, 1877, p. 70.?"^Tiitfield, Geol. WieconBin, 4,1882, p. 237, pi. 5, fig. 4.Aeaphus triangulatxis WTiitfield, Ann. Rep. for 1879, Wisconsin Geol. Surv., 1880,p. 59.Isoteloides homalonotoides Raymond, Ann. Carnegie Mue., 7, 1910, p. 52, pi. 16,figs. 9-11.Black River: Dunleith, Illinois; Grant County, Wisconsin; Pattersonville, NewYork; Ottawa, Canada.Trenton: Smiths Basin, New York.Isoteloides whitfleld! Raymond.Asaphus canalis Whitfield (not Hall), Bull. Amer. Mus. Nat. Hist., 1, 1886, p.336, pi. 34, figs. 1-8; ibid., 2, 1889, p. 64, pis. 11, 12.?Seely, Vermont StateGeol., Rep. 7, 1910, pi. 58.Isotelus canalis Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 291, fig.1600.Isoteloides whitfieldi Raymond, Ann. Carnegie Mus., 7, 1910, p. 36, pi. 16, figs.1-4, fig. 4.Canadian (Beekmantown): Crown Point, New York; FortCassin, Vermont.ISOTELUS DeKay. Genotype: I. gigas DeKay.Isotelus DeKay, Ann. Lyceum Nat. Hist. New York, 1, p. 174.?Green, Mon.Tril. N. A., 1832, pp. 17, 64.?Edwards, Hist. Nat. d. Crast., 3, 1840, p. 297.?Portlock, Rep. Geol. Londonderry, 1843, p. 293.?Goldfuss, Neuea Jahrb. f.Min., etc., 1843, pp. 541, 554.?McCoy, Ann. Mag. Nat. Hist., (2), 4, 1849,p. 399; British Pal. Rocks, Fossils, 1854, p. 169.?Emmons, Amer. Geology,1, pt. 2, 1855, p. 215.?Salter, Mem. Geol. Surv. United Kingdom, dec. 11,1864, pi. 3; Mon. British Tril., Pal. Soc, 1866, p. 147.?Miller, CincinnatiQuart. Jour. Sci., 1, 1874, p. 137.?Zittel, Handb. Pal., 2, 1885, p. 608.?Br6gger, Afh. Sveriges Geol. Unders., ser. C, No. 82, 1886, p. 31; Bihang tillK. Sven. Vet.-Akad. Handl., 11, No. 3, 1886, p. 31.?Clarke, Geol. Minne-sota, 3, pt. 2, 1894, p. 700.?Kokeu, Die Leitfossilien, Leipzig, 1896, p. 28.?Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 8th ser., 6, 1898, pp. 11,12, 33.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p.1052.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 291.?Slocom,Field Mus. Nat. Hist., Geol. Ser., 4, 1913, p. 47.?Raymond, Trans, and Proc.Roy. Soc. Canada, 5, 3rd ser., sec. 4, 1912, p. 115; Zittel-Eastman Textb.Pal., 1913, p. 719.I.SOTELU8 ALACER Billiugs. See Brachyaspifl alacer.Isotelus angusticaudus Raymond. See Isoteloides angusticaudus.Isotelus arenlcola Raymond.Isotelus arenicola Raymond, Ottawa Nat., 24, 1910, j). 130, figs. 1, 2 (?pL 2, fig. 5).Chazyan (Aylmer): Deschenea and Britannia, near Ottawa, and West Hawkes-bury, Canada.Isotelus? bearsi Raymond. See Vogdesia bearsi.Isotelus benjamin! Ulrich.Isotelus benjamini Ulrich in Foerate, Jour. Cincinnati Soc. Nat. Hist., 21, 1914,p. 144, fig. 4.Trenton (Upper): Covington and Rogers Gap, Kentucky. 676 BULLETIN i>2, UNITED STATES NATIONAL MUSEUM.Isotelus beta Raymond.AeaphuB ep. beta Raymond, Ann. Carnegie Mus., 3, 1905, p. 342, pi. 12, fig. 9.Isotelus beta Raymond, 7th Rep. Vermont State Geol., 1910, pi. 36, fig. 9, pi. 39,figs. 4-7; Ann. Carnegie Mua., 7, 1910, p. 67, pi. 19, figs. 4-7.Chazyan (Crown Point, Valcour): Crown Point, Valcour Island, Plattebuigh, andChazy, New York.Isotelus canalis Hall.Isotelus canalis (Conrad MS.) Hall, Pal. New York, 1, 1847, p. 25, pi. 4 (bis),figs. 17-19.?Emmons, Amer. Geologj-, 1, pt. 2, 1855, p. 2,36, pi. 3, figs. 17-10.Asaphus canalis Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 70(gen. ref.).?Billings, Pal. Foes., 1, Geol. Surv. Canada, 1865, p. 270, figs. 255a,b; p. 352, fig. 340.Chazyan: Chazy, New York; Newfoundland.Observation.?Neither defined nor figured so aa to be recognized.Isotelus canalis Clarke. See Isotelus gigas.Isotelus canalis Grabau and Shimer. See laoteloides whitfleldi.Isotelus canalis Weller. See Asaphellus gyracanihus.Isotelus coTlngtonensis Ulrich.Isotelus covingtonensis Ulrich in Foerste, Jour. Cincinnati Soc. Nat. Hist., 21,1914, p. 145, figs. 1, 2.Trenton (Upper): Covington, Rogers Gap, etc., Kentucky.Isotelus Cyclops Green.Isotelus Cyclops Green, Monthly Amer. Jour. Geol., 2, 1832, p. 560, pi., fig. 7;Mon. Tril. N. A., 1832, p. 69, fig. 7, cast 24.Middle Ordovician: Western New York.Plastotypc?Gsit. No. 25703, U.S.N.M.Isotelus emoryx Walcott. See Onchometopus emoryi.Isotelus Florencevillensis Calvin. See Onchometopus siisae.Isotelus gigas of authors. See Isotelus jacobus, I. latus, and I. iowensifl.Isotelus gigas deKay.Isotelus gigas DeKay, Annals Lyceum Nat. Hist. New York, 1, 1824, p. 176, pi.12, fig. ] ; pi. 13, fig. 1.?Green, Monthly Amer. Jour. Geol., 1832, p. 560; Mon.Tril. N. A., 1832, p. 71, cast 21, 22.?Milne-Edwards, Crust., 3, 1840, p. 298.?Troost, 5th Geol. Rep. Tennessee, 1840, p. 57.?Vanuxem, Nat. Hist. NewYork, Geol., 3, 1842, p. 47, fig. 1.?Emmons, ibid., 2, 1842, p. 389, fig. 1.?Mather, ibid., 1, 1843, p. 397, fig. 1.?Goldfiiss, Neues Jalirb. f. Min., etc.,1843, p. 554.?Owen, Amer. Jour. Sci., 47, 1844, p. 363, fig. 1.?Hall, Pal.New York, 1, 1847, p. 25, pi. 4 (bis), fig. 16; p. 231, pi. 60, figs. 7a-i; pi. 61,figs. 3a-f, 3i-m, 4a-c; pi.' 62, figs, la-c, 2; pi. 63; also p. 254, pi. 66, fig. 5.?Emmons, Amer. Geology, 1, pt. 2, 1855, p. 215, pi. 16, figs. 9-12.?Billings,Canadian Nat. Geol., 1, 1856, pp. 45, 46, figs. 9, 11.?Rogers, Geol. Pennsyl-vania, 2, pt. 2, 1858, p. 819, fig. 610.?Emmoivi, Man. Geol., 1860, p. 100,fig. 89.?Lincklaon, 14th Rop. New York State Cab. Nat. Hist., 1861, pi. 3,fig. 11.?Hitchcock, Geol. Vermont, 2, 1862, pi. 12, fig. 5.?Chapman, Expos.Min., Geol. Canada, 1864, p. 136, fig. 140.?Tx'sley, Geol. Surv. Penns>'lvania,Rep. P 4, 18S9, p. 302, figs.?Clarke, Geol. Minnesota, 3, pt 2, 1894, p. 701,figs, ft-8; p. 706.?Schuchert, Proc. U. S. Nat. Mue., 22, 1900, p. 174.?Weller,Geol. Surv. New Jersey, Pal., 3, 1903, p. 192, pi. 14, figs. 6, 7.?Grabau andShimer, N. A. Index Foeeils, 2, 1910, p. 292, fig. 1601.?Raymond, Ann. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 677Isotelus gigas?Continued.Carnegie Mus., 7, 1910, p. 53, pi. 15, figs. 1, 2.?Ruedemann, Bull. New YorkState Mu8., 162, 1912, p. 116, pi. 10, fig. 1.?Slocom, Field Mus. Nat. Hist.,Geol. Ser., 4, 1913, p. 47.?Raymond, Roy. Soc. Canada, Trans, and Proc,3d ser., 5, sec. 4, 1912, p. 119, pi. 2, figs. 7, 9; p. 120, pi. 3, fig. 6; Bull. Mus.Comp. Zool., 58, 1914, p. 248, pi. 1, figs. 1, 2; pi. 2, figs. 2-5; pi. 3, fig. 3.Asaphus gigas Dalman, K. K. Akad. Handl. for 1826, 1827, p. 276.?Packard,Amer. Nat., 14, 1880, pp. 505-508, figs. 2-4.?Nicholson and Etheridge, Mon.Sil. Foss. Girvan Dist., 1880, p. 153, pi. 10, figs. 18, 19.?Chamberlin, Geol.Wisconsin, 1, 1883, p. 160, fig.?Miller, N. A. Geol. Pal., 1889, p. 531, fig. 967.?Rowley, Missouri Bur. Geol., Mines, 2d ser., 8, 1908, p. 57, pi. 15, fig. 2.Asaphus (Isotelus) gigas Hall, Rep. Geol. Surv. Wisconsin, 1862, p. 41, fig. 5.?Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 138.?Whiteaves, Pal. Foss.,Geol. Surv. Canada, 3, pt. 3, 1897, p. 232.Asaphus platycephalus Stokes, Trans. Geol. Soc. London, 2d ser., 1, 1824, p. 208. ? Bronn, Leth. Geog., 1, 1835, p. 115, pi. 9, fig. 8.?Green, Amer. Jour. Sci., 37,1839, p. 37.?Buckland, Bridgw. Treatise, 2, 1840, p. 76, pi. 63, fig. 12.?Burmeister, Org. Tril., 1846, p. 110, pi. 2, fig. 12 (Roy. Soc. ed., 1846).?Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 219, fig. 229.?Chapman,Canadian Jour., n. s., 4, 1859, p. 142; 8, 1863, p. 29, fig. 140; p. 200, fig. 196;Expos. Min. and Geol., 1864, p. 172, fig. 196.?Billings, Canadian Nat.,1864(2), 1, 1864, p. 370.?Woodward, Quart. Jour. Geol. Soc. London, 26, 1870,p. 487, fig. 1.?Dana, Amer. Jour. Sci., 3d ser., 1, 1871, pp. 320, 386; Ann.Mag. Nat. Hi?t., 4th ser., 7, 1871, p. 366.?Woodward, Geol. Mag., 8, 1871, pi.8, fig. 1.?Dana, Canadian Nat., n. 9., 6, 1872, p. 348.?Eichwald, NeuesJahrb. f. Min. Geol. Pal., 1873, p. 1, pi. 1.?Walcott, 28th Rep. New YorkState Mus. Nat. Hist., doc. ed., 1875 (1877), footnote, p. 95; ibid., mus. ed.,1879; 31st Rep. New York State Mus. Nat. Hist., 1879, pp. 62, 64; Bull. Mus.Comp. Zool., 8, 1881, pp. 191-216, pi. 2, fig. 9; Science, 3, 1884, p. 281.?Woodward, Geol. Mag., dec. 3, 1, 1884, p. 78, text fig.Asaphus (Isotelus) platj'cephalus Burmeister, Org. der Tril., Berlin, 1843, p. 127,pi. 2, fig. 12. 'Isotelus platycephalus Bronn and Roemer, Leth. Geog., 1, 1851-56, p. 632, pi. 9,fig. 8; pi. 9', fig. 5.Isotelus planus DeKay, Ann. Lyceum Nat. Hist. New York, 1, 1824, p. 178, pi.13, fig. 2.?Green, Monthly Amer. Jour. Geol., 1832, p. 560; Mon. Tril. N. A.,1832, p. 68, cast 23.?Goldfuss, Neues Jahrb. f. Mem., etc., 1843, pi. 554.Asaphus planus Dalman, K. K. Akad. Handl., 1827, p. 276.Isotelus stegops Green, Mon. Tril. N. A., 1832, p. 71, cast 26, 27.Brongruatia isotelea Eaton, Geol. Textb., 2d ed., 1832, p. 33, pi. 2, fig. 22.Asaphus Murclusoni Castelnau, Essai Syst. Sil. I'Amer. Sept., 1843, p. 19, pi. 4,fig. 3.?l80telus canalis Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 707, fig. 9.Mohawkian and Cincinnatian: United States and Canada.Observation.?Several distinct species are undoubtedly recorded in the abovecitations. (See Raymond, 1914.)Isotelus harrlsl Raymond.Isotelus harrisi Raymond, Annals Carnegie Mus., 3, 1905, p. 343, pi. 12, figs. 3, 5,7.?Schmidt, Mem. Imp. Acad. Sci., St. Petersburg, 20, 1907, p. 75.?Ray-mond, 7th Rep. Vermont State Geol., 1010, p. 221, pi. 34, figs. 3, 5-7; pi. 37,fig. 1; Ann. Carnegie Mus., 7, 1910, p. 65, pi. 17, fig. 1, fig. 2.Chazyan: Crown Point, Valcour Island, Chazy, and Coopersville, New York;Isle La Motte. Vermont (Crown Point, Valcour); Mingan Islands, Canada(Mingan). 678 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.IsoTELUS HARRI8I Raymond (part). See leotelus platymarginatuB.Isotelus loweusis (Owen).Asaphus (Isotelus) iowenais Owen, Rep. Geol. Surv. Wisconsin, Iowa, Minnesota,1852, p. 577, tab. 2A, figs. 1-7.?Lesley, Geol. Siuv. Pennsylvania Rep.,P 4, 1889, p. 41, figs.Isotelus iowensia Clarke, Geol. Minnesota, 3 pt., 2, 1894, p. 704.?Slocom, FieldMus. Nat. Hist., Geol. Ser., 4, 1913, p. 48, pi. 13, figs. 1, 2.?Raymond, Bull.Mus. Comp. Zool., 58, 1914, p. 255, pi. 2, fig. G; pi. 3, figs. 1, 2.Isotelus gigas ( larke (pail), Geol. Minnesota, 3, pt. 2, 1894, p. 703, fig. 5.?^^VeIIer,Geol. Surv. New Jersey, Pal., 3, 1902, pi. 14, fig. 5.Richmond (Macjuoketa): Turkey River, dermont, and Elgin, Iowa.Cotypes.?C&i. No. 17906, U.S.N.M.I.sotelus Jacobus Clarke.Isotelus gigas Hall (part), Pal. New York, 1, 1847, pi. Gl, figs. 3g, 3b.Isotelus jacobus Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 706, footnote.Trenton: Middleville, New York.Isotelus latus Raymond.Isotelus latus RajTUond, Bull. Victoria Memorial Mus., 1, 1913, p. 45, pi. 5.Asaphus platycephalus Billings, Geol. Canada, Geol. Surv. Canada, 18G3, p. 184,text fig. 183; Cat. Sil. Foss. Anticosti, 1866, p. 24, fig. 7; Quart. Jour. Geol.Soc. London, 20, 1870, p. 486, pis. 31, 32.Isotelus gigas Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 293, fig. 1602.Trenton: Ottawa, Ontario.Isotelus longJBVus Savage.Isotelu.s long8e^'^l^ Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 103, pi. 6 fig., 15.Upper Medinan (Edgewood): Near Edgewood, Illinois.Isotelus maximus Locke.Isotelus maximus Locke, 2d Ann. Rep. Geol. Surv. Ohio, 1838, p. 246, figs. 8, 9;Amer. Jour. Sci., 41, 1841, p. 161; Trans. Assoc. Amci. Geol. and Nat., 1843, p.14.?Clarke, 10th Rep. State Geol. New York for 1890, 1891, ]>. 87; 44th Rep.New York State Mus., 1892, p. Ill; Geol. Minnesota, 3, jit. 2, 1894, p. 701,figs. 5-7; p. 706.?Ruedemann, Bull. New York State Mus., 49, 1901, p. 59,pi. 4, fig. 1.?RajTnond and Narraway, Ann. Carnegie Mus., 7, 1910, p. 55,fig. 3?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 292, fig. 1603.?Ctunings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1060, pi. 55,fig. 1.?Slocom, Field Mus. Nat. Ilist., Geol. Ser., 4, 1913, p. 47.?Raj-mond,Bull. Victoria Memorial Mus., 1, 1913, p. 46, pi, 4, fig. 8; Bull. Mus. Comp.Zool., 58, 1914, p. 257.Asaphus maximus Clarke, 46th Rep. New York Stat? Mus., 1893, p. 195; 12thRep. State Geol. New York for 1892, 1894, p. 49.Asaphus (Isotelus) maximus Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3,1897, p. 233.Isotelus mc^ifltoH Locke, .Vmei. Jour. Sci., 42, 18'12, ]>. 366, pi. 3, fig.; Trans.Assoc. Amer. Geol., Nat., 1843, p. 221, pi. 6, fig. 1.?Anon., Amer. Jour. Sci.,2d ser., 6, 1848, p. 431.?Taylor, ibid., 10, 1850, p. 113.Asaphus megist OS Chapman, Canadian Jour., n. s., 4, 1859, pp. 140, 142.?Billings,Geol. Canada, Geol. Surv. Canada, 1SG3, p. 184, fig. 182; Cat. Sil. Foss. An-ticosti, Geol. Surv. Canada, 18G6, pp. 26, 60.?\Valcott, 28th Rep. New YorkState Mus. Nat. Hi.st., doc. ed., 1877, p. 89; mus ed., 1879, p. 89.?Mickel-borough, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, pp. 200-206, figs. 1, 3 (2).? BIBLIOGKAPHIC LIST OF GENEBA AND SPECIES. 679Isotelus maximus? Continued.Walcott, Science, 3, 1884, p. 280, fig. 1.?Woodward, Geol. Mag., 3, 1, 1884, p.162, figs. 1-3.?Ford and Dwight, Araer. Jour. Sci., 3d ser., 31, 1886, p. 254,pi. 7, fig. 16.?Miller, N. A. Geol. Pal., 1889, p. 531, fig. 968.?Beecher, Amer.Jour. Sci., 4tli ser., 13, 1902, p. 169, pi. 5, figs. 5, 6; Geol. Mag., dec. 4,, 9,1902, p. 158, figs. 5, 6.?Rowley, Missouri Bur. Geol. and Mines, 2d ser., 8, 1908,p. 58, pi. 15, fig. 3.Asaphus (Isotelus) megistos Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 159, pi. 14,fig. 13.?Miller, Cincinnati Quart., Jour. Sci., 1, 1874, p. 137.Trenton-Richmond : Cincinnati, Ohio. Many localities in the United States andCanada.Plesiotype.?Cat. No. 33458, U.S.N.M. (Mickelborough) . Observation.?The above citations, like those of I. gigas, 7)ro])ably refer toseveral species.Isotelus megalops Green.Isotelus raegalo])a Green, Mon. Tril. N. iVmer., 1832, ]>. 70, cast No. 25.Trenton: Near Trenton Falls, New York.Plastotype.?C&t. No. 25694, U.S.N.Ikl.Isotelus megistos Locke. See Isotelus maximus.Isotelus obtusa Rajonond. See Onchometopua obtusus.Isotelus planus DeKay . See Isotelus gigas.Isotelus platycephalus Bronn. See Isotelus gigas.Isotelus platymarginatus Raymond.Isotelus liarrisi (part) Raymond, Ann. Carnegie Mus., 3, 1905, pi. 12, fig. 4.Isotelus platymaiginatus Raymond, Ann. Carnegie Mus., 7, 1910, p. 66, pi. 17,figs. 2-5; pi. 19, fig. 3; 7th Rep. Vermont State Geol., 1910, p. 225, pi. 34,fig. 4; pi. 37, figs. 2-5; pi. 39, fig. 3.Chazyan (Crown Point, Valcour): Valcour Island, New York; Isle La Motte,Vermont.Isotelus stegops Green. See Isotelus gigas.Isotelus sus.b Clarke. See Onchometopus susse.IsoTRYPA ambioua UMch. See Loculipora ambigua.JAEKELOCTSTIS Schuchert. Genotype: J. hartley! Schuchert.Jaekelocystis Schuchert, Amer. Geol., 32, 1903, p. 230; Smiths. Misc. Coll., 47,1904, p. 222.Jaekelocystis avellana Schuchert.Jaekelocystis avellana Schuchert, Smiths. Misc. Coll., 47, 1904, p. 226, pi. 37,figs. 11, 12, fig. 28; :Maryland Geol. Surv., Low. Dev., p. 235, pi. 38, figs. 3, 4.Helderbergian (Keyser): Keyser, West Virginia.Eolotype.?Cat. No. 35056, U. S.N.M.Jaekelocystis hartley! Schuchert.Jaekelocystis hartleyi Schuchert, Amer, Geol., 32, 1903, p. 231; Smiths. Misc.Coll., 47, pt. 2, 1904, p. 224, fig. 27, pi. 37, figs. 4-8.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 468, fig. 1776.?Schuchert, Maryland Geol.Surv., Low. Dev., 1913, p. 233, pi. 37, figs. 12-16.Helderbergian (Keyser): Keyser, West Virginia.Cotypes.?Cat. No. 35055, IT.S.N.M. 680 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Jaekelocystis papUlatus Schuchert.Jaekelocystis papillatus Schuchert, Smith.''. Misc. Coll., 47, 1904, p. 225, pi. 37,figs. 9, 10; Maryland Geol. Surv., Low. Dev., 1913, p. 234, pi. 38, figs. 1, 2.Helderbergian (Keyser): Keyser, West Virginia.Uolotype and paratype.?Cat. No. 35057, U.S.N.M.JONESELLA Ulrich. Genotype: J. crepidiformis Ulrich.Jonesella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 121.?Miller, N. A.Geol. Pal., 1st App., 1892, p. 708.?UMch, Geol. Minnesota, 3, pt. 2, 1894,p. 667.?Grabau and Shimer, N. A. Index Fossils, 2, 1910. p. 349.?Baasler,Zittel-Eastmau Textb. Pal., 2d ed.. 1913, p. 738.Jonesella crassa Ulrich. See Ctenobolbina crassa.Jonesella crepidiformis (Ulrich).Leperditia crepiformis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 10. pi.7, figs. 3, 3a.Jonesella crepidiformb Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 122,pi. 7, figs. 8a-c; Geol. Minnesota, 3, pt. 3, 1894, p. 667, figs. 47a-c.?Grabau andShimer, N. A. Index Fossils, 2, 1010, p. 349, figs. 1658a-c.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425f.Eden (Economy): Covington, Kentucky, and vicinity.Cotypes?Cat. No. 41359, U.S.N.M.Joucsella digltata Ulrich.Jonesella digitata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 122, pi. 7,figs. lOa-c.Richmond (Amheim) : Marion County, Kentucky.Holotype.?Cat. No. 41358, U.S.N.:M.Jonesella obscura Ulrich.Jonesella obscura Ulrich, Geol. ilinnesota, 3, pt. 2, 1894, p. 668, pi. 44, figs. 17-19.Trenton (Prosser) : Cannon Falls, Minnesota.Cotypes.? Cat. No. 41529, U.S.N.M.Jonesella pedlgera Ulrich.Jonesella pedigera Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890. p. li^2, pi. 7,figs. 9a, 9b; Geol. Minnesota, 3, pt. 2, 1894, p. 667, figs. 47d, e.?Grabau andShimer, N. A. Index Fossils, 2, 1910, p. 349, figs. 1658d, e.Eden (Economy): Covington, KentuclcA'. and vicinity.Holotype.?Cat. No. 41360, U.S.N.M.JOVELLANIA Bayle. Genotype: Orthoceraa buchi Vemeuil.Jovellania Bayle, Bull. Soc. Geol. France, 3d ser., 7, 1879, p. 91.?Foord, Cat. Foss.Ceph. British Mus., 1, 1888, p. 326; ibid.. 2, 1891, p. 397.JcAFLLANiA cAPiTOLiNUM Foord. See Actinoccrafl? ciivicri.Jovellania inurrayl (Billings).Orthoceras murrajT Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,p. 332.Jovellania murrayi Foord. Cat. Foss. Ceph. British Mas., 1, 1888, p. 328, fig. 50.Black River: St. Joseph's Island, Lake Huron.Jovellania semlplanata (Wliiteavcs).Orthoceraa semiplanatuni Whiteaves, Trans. Roy. Sew. Canada. 9, sec. 4. 1892,p. 81, pi. 8, fig.i. 3, 3a. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 681Jovellanla semlplanata?Continued.Tripteroceras eemiplanatum Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3,1897, p. 214.Jovellania semiplanata Whiteaves, Geol. Surv. Canada, Pal. Foes., 3, pt. 4, 1906,p. 345 (gen. ref.).Black Eiver or Richmond : Lower Fort Garry, Manitoba.KioNELASMA Simpsou. See Lindstromia Nicholson and Thompson.KIONOCERAS Hyatt. Genotype: Orthoceras doricum Barrande.Kionoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 275.?Newell, Proc.Boston Soc. Nat. Hist., 23, 1888, p. 469.?Hyatt, Zittel-EastmanTextb. Pal.,1, 1900, p. 519; 2d ed., 1913, p. 600.?Clarke and Ruedemann, Mem. New YorkState Mus., 5, p. 82.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 61.Kionoceras angul.\tum Newell. See Kionoceras cancellatum.Eionoceras bellatulum (Billings).Orthoceras bellatulum Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada,1866, p. 58.Anticostian (Gun River and Jupiter River) : Three miles east Challoupe River,Anticosti.Eionoceras cancellatum (Hall).Orthoceras cancellatum Hall (not Eichwald), Pal. New York, 2, 1852, p. 292,pi. 63, figs. 1, 4a, b; pi. 65, figs. 4a, b.Orthoceras subcancellatum Hall in Miller, Amer. Pal. Foss., Ist. ed., 1877, p. 245;nth Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 323, pi. 33, fig. 5.?Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1889, p. 559, fig.Kionoceras cancellatum Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14,App. F, 1904, p. 55; Geol. Surv. Canada, Pal. Fossils, 3, pt. 4, 1906, p. 264(discusses synonymy).Orthoceras columnare Hall (not Marklin, 1857), Rep. Progr. Geol. Surv. Wiscon-sin, 1867, p. 4; 20th Rep. New York State Cab. Hist., 1868, p. 351, pi. 19,(10), figs. 4-8 (extras Jan., 1865); rev. ed. 1868 (1870), p. 411, pi. 19, figs.4^6, 8.Kionoceras columnare Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 469.Orthoceras orus Hall in Miller, Amer. Pal. Foss., 1st ed., 1877, p. 245.Orthoceras (Kionoceras) orus Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat.Res. Indiana, 1904, p. 469, pi. 21, fig. 1; pi. 25, fig. 2.Kionoceras orus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 62, fig. 1266.Orthoceras Hoyi McChesney, Desc. New Fossils, 1861, p. 92.Orthoceras lineolatum McChesney, Desc. New Fossils, ]861, p. 93.Orthceras inegulare McChesney, Desc. New Fossils, 1861, p. 94.Orthoceras woodwortlii McChesney, Plates Illust. New sp. Fossils, 1865, pi. 7,fig. 7; Trans. Chicago Acad. Sci., 1, 1868, p. 53, pi. 7, fig. 7.Orthoceras cadmus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866,p. 83.?^\Tiiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 38.Orthoceras virgalum? Hall (not Sowerby), Pal. New York, 2, 1852, p. 298, pi. 63,figs. 2a, b, 3.Orthoceras scammoni McChesney, Desc. New Fossils, 1861, p. 92.?^Winchell andMarcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 101.?Hall, 20th Rep. NewYork State Cab. Hist., 1868, p. 381; rev. ed. 1868 (1870), p. 412, footnote.?WTiiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 99.?Clarke andRuedemann, Mem. New York State Mus., 5, 1903, p. 77. 682 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Klonoccras caucellatum?Continued.Orthoccras angulatum Hall (not Walilenberg, 1821), 20th Rep. New York StateCab. Hist., 1868, p. 353, pi. 19 (10), figs. 10, 11; rev. ed. 1868 (1870), p. 413,pi. 19, figs. 9-11; pi. 24, fig. 1.?Meek and Worthen, Geol. Siirv. Illinoie, 6,1875, p. 504, pi. 24, figs. 8, 8a.Orthoceras (Kionoceras) angulatum Kindle and Breger, 28th Ann. Rep. Dep.Geol. Nat. Res. Indiana, ]f?04, p. 472, pi. 21, fig. 3.Kionoceras angulatum Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 470. ? Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 01, fig. 1265.CUnton-Guelph: Rochester and Lorkpoit, New York; Ontario; Ohio; Indiana;Illinois; "Wisconsin; etc.Observation.?The name cancellatum and the above synonymy is held untila careful study of these cephalopods is made.Plesiotype.?C&t. No. 52951, U.S.N.M. (Kindle and Breger).Kionoceras columnare Newell. See Kionoceias cancellatum.Kionoceras crawfordi (Foerste).Orthoceras (Kionoceras) crawfordi Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889,p. 284, pi. 5, fig. 26; Geol. Surv. Ohio, Pal., 7, 1893, p. 546, pi. 30, fig. 26.Upper iledinan (Brassfield): Soldiers' Home, near Dayton, Ohio.Kionoceras darwini (Billings).Orthoceras dar^-ini Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 161 (adv.slieets, 1801).?Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884,p. 38, pi. 6, figs. 2, 2a; ibid., pt. 2, 1895, p. 100.?Foord, Cat. Foss. Ceph.B-itish Mus., 1, 1888, p. 76, fig. 8.Orthoceras (Kionoceras) darwini Clarke and Ruedemann, Bull. New York StateMus., 65, 1903, p. 811 (gen. ref.).Kionoceras darwini Clarke and Ruedemann, Mem. New York State Mus., 5, 1903,p. 84, pi. 10, fig. 22; pi. 11, fig. 0; pi. ]2; figs. 1-8.?Grabau and Shimer, N. A.Index Fossils, 2, 1910, p. 62, fig. 1267.Cyrtoceras myrice Hall and "Whitfield, Geol. Surv. Oliio, Pal., 2, 1875, p. 149,pi. 8, fig. 9.?Whiteave.s, Pal. Fosa.. Geol. Surv. Canada, 3. pt. 1, 1884. p. 39,pi. 0, figs. 3, 3a.Niagaran (Guelph): New Hope, Durham, etc., Ontario; Shelby and Rochester,New York; Yellow Springs, Ohio; Offley Island, Kennedy Cliannel, AicticAmerica.Kionoceras delphlense (Kindle and Breger).Orthoceras (Kionoceras) deli)hien8is Kindle and Breger, 28tli Ann. Rep. Dep.Geol. Nat. Res. Indiana, 1904, p. 470, pi. 20, figs. 1, 2.Niagaran: Delphi, Indiana.Kionoceras kentlandense (Kindle and Breger).Orthoceras (Kionoceras) kentlandensia Kindle and Breger, 28th Ann. Re]>. Dep.Geol. Nat. Res. Indiana, 190-1. p. 470, pi. 21, fig. 2.Niagaran: Kentland, Indiana.Kionoceras la((ueatuni (Hall).Orthoceras la2, UNITED STATES NATIONAL MUSEUM.KloedenoIIa symmetrica (Hall).Beyrichia symmetrica Hall, Pal. New York, 2, 1852, p. 317, pi. 67, fig. 16.BoUia symmetrica Jones, Amer. Geol., 4, 1889, p. 339 (gen. ref.); Quart. Jour.Geol. Soc. London, 4G, 1890, p. 12.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894,p. 657.?Grabau, Bull. New York State Mus., 45, 1901, p. 219, fig. 151; Bull.Buffalo Soc. Nat. Sci., 7, 1901, p. 219, fig. 151.?Ulrich and Ba.ssler, Proc.U. S. Nat. Mus., 35, 1908, p. 319, fig. 61.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 352, fig. 1661.Bollia lata Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 12.Clinton (Rochester): Lockport, Rochester, etc., New York; Ontario; Pennsyl-vania; Maryland.KlcBdenella trlsulcata (Hall).Beyrichia trisulcata Hall, Pal. New York, 3, 1859, p. 381.?^Jones, Quart. Jour.Geol. Soc. London, 46, 1890, p. 14, pi. 1, fig. 2.Klocdenella trisulcata Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 318.Helderbergian (Manlius transition): Herkimer County, New York.Eloedenella turgida Ulrich and Bassler.Klcedenia pennsylvanica Jones (part), Amer. Geol., 4, 1889, p. 341, figs. 8, 9 (notfigs. 5-7).Klcedenella turgida Ubich and Baasler, Proc. U. S. Nat. Mus., 35, 1908, p. 318,pi. 43, figs. 6, 7; Marj'land Geol. Surv., Low. Dev., 1913, p. 535, pi. 98, figs.4-6.?Bassler, Zittel-JEastman Textb. Pal., 1913, p. 738, fig. 14251.Helderbergian (Keyser): Perry County, Pennsylvania; Cumberland, Maryland;Keyser, West Virginia.Cotypes.?C&t. No. 53278, U.S.N.M.Eloedenella turgida ventrosa Ulrich and Bassler.Klcedenia pennsylvanica Jones (part), Amer. Geol., 4, 1889, p. 341, figs. 7a, 7b(not figs. 5, 6, 8, 9).Klcedenella turgida ventrosa Ulrich and Bassler, Prpc. U. S. Nat. Mus., 35, 1908,pi. 43, fig. 8; Maryland Geol. Surv., Low. Dev., 1913, p. 535, pi. 98, fig. 7.Helderbergian (Keyser): Perry County, Perm^sylvania; Cumberland, Maryland.Holotypes.?Cat. No. 53279, U.S.N.M.KL(EDENIA Jones and HoU. Genotype: BejTichia wilckensiana Jonea.Klcedenia Jones and Holl, Ann. Mag. Nat. Hist., 5th ser., 17, 1886, p. 362.?Krause, Zeits. d. d. geol. Gesell, 41, 1889, p. 21.?Koken, Die Leitfossilien,Leipzig, 1896, p. 39, fig. 26A.?Miller, N. A. Geol. Pal., 1st App., 1892, p.708.?Ulrich, Zittel-Eastman Textb. Pal., 1, 1900, p. 644.?Ulrich and Bass-ler, Proc. U. S. Nat. Mus., 1908, p. 300.?Grabau and Sliimer, N. A. IndexFossils, 2, 1910, p. 355.Klcedenia barrettl (Weller).Beyrichia barretti Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 254, pi. 23,fig. 9.Klcedenia barretli I'lrich and Bassler, Proc. U. S. Nut. Mus., 35, 1908, p. 301(gen. ref.); Maryland Geol. Surv., Low. Dev., 1913, p. 532, pi. 97, fig. 17.Helderbergian: Two miles south of Tristates, New York (Decker Ferry); Tonolo-way, Mar>'land (Keyser).Klcedenia centrlcornis Ulrich and Bassler.Klcedenia centriconiis Ulrich and Bassler, Proc. U. S. Nat. Mus., 1908, 35, pi. 38,fig. 23; Maryland Geol. Surv., Low. Dev., 1913, p. 529, pi. 97, fige. 1^.?Bassler, Zittel-Eastman Textb. Pal., 1913, p. 738, fig. 1425i.Helderbergian (Keyser): Cumberland, Maryland.Holotypc.?C&t. No. 53305, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 685ElcBdeuia flmbrfata Ulrich and Bassler.Kloedenia fimbriata Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 38,fig. 22; Maryland Geol Surv., Low. Dev., 1913, p. 529, pi. 97, figs. 5-7.Helderbergian: Herkimer County, New York; Cumberland, Maryland (Keyser).Eolotype.?Cat. No. 53306, U.S.N.M.Kloedenia Inltlalis (Ulrich).Beyricliia initialis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 658, pi. 43, figs. 82, 83.Kloedenia initialis llrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301, pi.38, figs. 12, 13.?Grabau and Slumer, N. A. Index Fossils, 2, 1910, p, 355, fig.1663, e, f.Black River (Decorah): Minneapolis, Minnesota.Eolotijpe.?Gat. No. 41666, U.S.N.M.Kloedenia jerseyensis (Weller).Beyrichia jerseyensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 255, pi. 23,fig. 5.Kloedenia jerseyensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301.Helderbergian (Decker Ferry) : Two miles south of Tristates, New York.Kloedenia kokomoensis Foerste.Kloedenia kokomoensis Foerste, Cincinnati Soc. Nat. Hist., Jour., 21, 1909, p. 32,pi. 1, figs. 3a-b.Cayugan (Kokomo): Kokomo, Indiana.Kloedenia kUmmeli (Weller).Bevi-ichia kiimmeli Weller, Geol. Surv. New Jersey, Pal. 3, 1903, p. 266, pi. 24. ' fig. 21.Kloedenia kgmmeli Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301(gen. ref.); Maryland Geol. Surv., Low. Dev., 1913, p. 531, pi. 97, fig. 16.Helderbergian: Two miles south of Tristates, New York ("Manlius"); Tonolo-way, Maryland (Keyser).Kloedenia manllensis (Weller).Beyrichia manliensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 268, pi. 23,fig. 10.Kloedenia manliensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301,pi. 38, fig. 21.Kloedenia manliusensis Clarke, Mem. New York State Mus., No. 9, pt. 2, 1909,p. 20.Helderbergian: Two miles South of Tristates, New York (Keyser-"Manlius");Dalhousie, New Brunswick (Dalhousie).Pleiotypes.?Gat. No. 53941, U.S.N.M.Kloedenia manliensis deckerensis (Weller).Beyrichia deckerensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 256, pi. 23,fig. 11.Kloedenia manliensis deckerensis Ulrich and Bassler, Proc. U. S. Nat. Mus.. 35,1908, p. 301.Helderbergian (Decker Ferry): Two miles south of Tristates, New York.Kloedenia manliusensis Clarke. See Kloedenia manliensis.Kloedenia monroensis Grabau.Kloedenia monroensis Grabau, Michigan Geol. Surv., Geol.. Istser., 1909, p. 206,pi. 15, fig. 11.Lower Monroan (Raisin River): Newport, Michigan. 686 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Kloedenla montaguensis (Weller).Beyrichia montagiiensie Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 267, pi.24, fig. 23.Kloedenia montagiiensls Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301.Helderbergian ("Manliue"): Two miles south of Triatates, New York.Kloedenla nearpassi (Weller).Be>Ticliia nearpassi Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 255, pi. 23,figs. 7, 8.KlcedenJa nearpassi Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 301,p. 304, fig. 55, 56 (gen. ref.); Maryland Geol. Surv., Low. Dev., 1913, p. 530,pi. 97, figs. 12, 13.Helderbergian: Two miles south of Tristates, New York (Decker Ferry); Tonolo-way, Maryland (Keyser).EJoedenIa notata (Hall).Beyricliia notata Hall, Pal. New York, 3, 1859, p. 379.Kloedenia notata Jones, Qi.art. Jour. Geol. Soc. London, 46, 1890, p. 13, pi. 4,figs. 22, 23.Helderbergian (ManUus transition) : Herkimer County and near Utica, New York.Klcedenia pennsylvanica Jones. See Kloedenella pennsjdvanica, K. turgida, andK. turgida ventrosa.Kloedenla praenuntla Ulrich and Bassler.Kloedenia prsenuntia Ulrich and Bassler, Proc. U. S. Nat. Mua., 35, 1908, p. 301,pi. 38, fig. 15.Trenton (Hermitage): Four miles south of Carthage, Tennessee.Holotype.?C&t. No. 41643, U.S.N.M.Klcedenia smockl (Weller).Beyrichia smocki Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 268, pi. 24, fig.24.Klopdenuv smocki Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 302.Helderbergian ("Manlius"): Two miles south of Tristates, New York.Kloedenla susscxensls (Weller).Beyrichia sussexensis Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 253, pi. 23,figs. 3-1.Kloedenia sussexensis Ulrich and Ba.-^sler, Proc. U. S. Nat. Mus., 35, 1908, p. 302,pi. 38, figs. 19, 20; Marj^land Geol. Surv., Low. Dev., 1913, p. 532, pi. 97, figs.14, 15.Beyrichia perinflata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 254, pi. 23,fig. 6.Helderbergian: Two miles south of Tristates, New York (Decker Ferry);Tonoloway, Maryland (Keyser); Dalhousie, New Brunswick (Dalhotisie).PUsiotypes.?C&t. No. 53940, U.S.N.M.Kloedenla wallpackensl.s (Weller).Br'yri( hia wallpackensis Weller, (ieol. Surv. New Jersey, Pal., 3, 1903, p. 266,pi. 24, fig. 22.Kla^denia wallpackensis Ulrich and Bassler, Proc. U. S. Nat. Mus., 35, 1908, p. 302.Helderbergian ("Manlius"): Two miles south of Tristates, New York.KoKENiA Ulrich and Scofield. See Kokenospira Bassler. BIBLIOGEAPHIC LIST OF GENERA AND SPECIES. 687KOKENOSPIRA Bassler (new name). Genotype: Bucanella esthona Koken.Bucanella Kokeu (part), Neues Jahrb. Min., Geol., Beilageband, 6, 1889, p. 389(not Meek, 1870).Kokenia Ulrich and Scofield (not Holzapfel, 1895), Geol. Minnesota, 3, pt. 2,1897, pp. 849-882.Eokenospira costalis (Ulrich and Scofield).Kokenia costalis Ulricli and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 882, pi.64, figs. 46-49.?Schuchert, Proc. U. S. Nat. Mus., 1900, p. 164.Trenton: Near Cannon Falls, Minnesota (Prosser); Frobisher Bay, Baffin Land.Holotype.?C&t. No. 45868, U.S.N.M.KRAUSELLA Ubich. Genotype: K. insequalis UWch.Krausella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 691.?Miller, N. A. Geol. Pal.,2d App., 1897, p. 788.?Grabau and Sliimer, N. A. Index Fossils, 2, 1910, p.362.Erausella antlcostlensis (Jones).Bairdia anticostiensis Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 548,pi. 21, figs. 3a, b.Krausella anticostiensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 691.Richmond (English Head, Charleton): English Head, etc., Anticosti.Erausella arcuata Ulrich.Krausella arcuata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 692, pi. 44, figs.47-53.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p.362,figs.l667a-c.Black River: Minneapolis, Minnesota; Mineral Point, Wisconsin; Dixon, Illinois(Platteville); High Bridge, Kentucky (Lowville).Cotypes?Cat. Nos. 41717-41719, U.S.N.M.Erausella Insequalis Uhich.Krausella inaequalis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 692, pi. 44, figs.44, 46.Black River (Platteville): Dixon, IlUnois.Holotype.?C&t. No. 41727, U.S.N.M.KuTORGiNA Hall and Clarke. See BilUngsella Hall and Clarke.LABECHIA Edwards and Haime. Genotype: Monticularia conferta Lonsdale.Labechia Edwards and Ilaime, Mon. Polyp. Foss. Terr. Pal., 1851 (Arch. Mus.Hist. Nat., 5), pp. 155, 279.?Pictet, Traite de Pal., 2d ed., 4, 1857, p. 444.?Milne-Edwards, Hist. Nat. Corall., 3, 1860, p. 284.?Salter, Cat. Camb. Sil.Foss., 1873, p. 109.?Lindstrom, Ann. Mag. Nat. Hist., 4th ser., 18, 1876,p. 4.?Steinmann, Palajontographica, 25, 1878, p. 112.?Nicholson andMurie, Jour. Linnean Soc. London, Zool., 14, 1878, p. 234.?Nicholson, Tab.Corals Pal. Period, 1879, p. 350.?Zittcl, Handb. Pal., 1, 1879, p. 287.?Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 541.?Nicholson, Mon. BritishStrom., Pal. Soc, 1886, pp. 13, 19, 60.?Waagen, Neues Jahrb. f. Min., Geol.Pal., 1, 1889, p. 259.?Grabau and Shimer, N. A. Index Fossils, 1, 1906, p.46.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 699.?Parks, Univ. Toronto Studies, Geol. Ser., 5,1908, p. 31;ibid., No. 7,1910, p.25.Labechia canadense Nicholson. See Stromatocerium canadense.Labechia corrugata Foerste. See Dermatostroma corrugatum.Labechia corrugata-glypta Foerste. See Dermatostroma glyptum. 688 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.LabecAla delicatula Parks.Labechia delicatula Parks, Univ. Toronto Studies, Geol. Ser., No. 5, 1908, p.32, pi. 9, figs. 4-6Clinton (Osgood): Osgood, Indiana.Cotypes.?C&t. No. 41218, U.S.N.M.Labeehla durhamensls Parks.Labechia durhamensis Parks, Univ. Toronto Studies, Geol. Ser., No. 4, 1907,p. 20, pi. 2, figs. 4-6; pi. 3, fig. 1; pi. 6, figs. 1, 2.Niagaran (Guelph): Durham, Guelph, etc., Ontario.Labechia huronensis WTiiteaves. See Stromatocerium huronense.Labechia macrostyla Parks.Labechia macrostyla Parks, Univ. Toronto Studies, Geol. Ser., No. 7, 1910, p.25, pi. 22, fig. 12; pi. 23, figs. 1, 2, 11."Lower Trenton drift": Ann Arbor, Michigan.Eolotype.?Csit. No. 36929, U.S.N.M.Labechia minora Parks.Labechia minora Parks, Univ. Toronto Studies, Geol. Ser., No. 4, 1907, p. 22,pi. 3, figs. 2, 5, 6.Niagaran (Guelph): Elora, Durham, etc., Ontario.Labechia montifera Ulrich. See Stromatocerium montiferum.Labechia ohioensis Nicholson. See Stromatocerium huronense.Labechia papillata of authors. See Dermatostroma papillatum.Labechia soabra Harper and Bassler. See Dermatostroma scabrum.Labechia subcyllndrica (James).Stromatopora subcylindrica James, Jour. Cincinnati Soc. Nat. Hiat., 7, 1884,p. 20, fig. l.-J. F. James, ibid., 9, 1887, pp. 39, 103, 251; ibid., 15, 1892, p.90.?Miller, N. A. Geol. Pal., 1889, p. 166.Labechia subcylindrica Parks, Univ. Toronto Studies, Geol. Series, No. 7, 1910,p. 27, pi. 23, figs. 3, 4, 6, 7.Richmond ("WajTieeville): Near Morrow, Ohio.LABTRINTHITES Lambe. Genotype: L. chidlensis Lambe.Labyrinthites Lambe, Cruise of the "Neptune," App. 4, 1906, p. 327.Labyriathltes chidlensis Lambe.Labyrinthites chidlensis Lambe, Cruiseof the "Neptune," App. 4, 1906, p. 328.Ordovician?: Cape Chidley, Hudson Strait, Arctic America.LACCOPHYLU'M Simpson. Genotype: L. acuminatum Simpeon.Laccophyllum Simpson, Bull. New York State Mufl., 39, 1900, p. 201.Laccophyllum acuminatum Simpson.Laccophylhuu acuminatum Simpsou, Bull. New York State Mus., 39, 1900, p.202, figs. 7-9.Niagaran (Brownsport): Perry County, Tennessee.Laoenooraptus Hall. See Monograptus Geinitz.Lameixopora Owen. See Strombodes Schweigger. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 689LAMPTEROCRINUS Roemer. Genotype: L. tennesseensis Roemer.Balanocrinitcs Troost (not Agassiz, 1845), Proc. Amer. Assoc. Adv. Sci., 2, 1850,p. 50 (not defined); Amer. Jour. Sci. and Arts, (2) 8, 1847, p. 419.? Roemer,Sil. Fauna West Tennessee, Breslau, 1860, p. 31.Balanocrinus Hall, 28th Rep. New York State Mus. Nat. Hiet., mus. ed., 1879,p. 131.Lampterocrinus Roemer, Sil. Fauna West Tennessee, Breslau, 1860, p. 40.?Hall,Trans. Albany lust., 4, 1863, p. 202.?Hall, 20th Rep. New York State Cab.Nat. Hist, (extras 1865), 1868, p. 328; ibid., rev. ed., 1870, footnote, p. 372.?Zittel, Handb. d. Pal., 1, 1879, p. 375.?Wachsmuth and Springer, Proc.Acad. Nat. Sci. Philadelphia, 1881, op. 358, 373 (Rev. Pal., pt. 2, pp. 184,199); ibid., 1885, p. 323.?Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat.Hist., 1882, p. 260.?De Loriol, Pal. Francaise, 11, 1882, p. 59.?Wachsmuthand Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 207.?Bather,Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 199, fig. 124.?Wachs-muth, Zittel-Eastman Textb. Pal., ], 1900, p. 145.?Weller, Bull. ChicagoAcad. Sci., 4, pt. 1, 1900, p. 80, fig. 39.?Wood, Bull. U. S. Nat. Mus., 64,1909, p. 102.?Zittel, Grundzuge Pal., 2, 1910, p. 161.?Gral)au and Shimer,N. A. Index Fossils, 2, 1910, p. 548.?Springer, Zittel-Eastman Textb. Pal.,2d ed., 1913, p. 187.Lampterocrinus? coinptus Rowley.Lampterocrinus? comptus Rowley, Amer. Geol., 34, 1904, p. 279, pi. 16, figa. 57, 58.Upper Medinan (Edgewood): Three miles west of Louisiana, Missoiui.Lampterocrinus? dubius Weller.Lampterocrinus? dubius Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4,pt. 1, 1900, p. 84, pi. 2, figs. 6, 7.Niagaran (Racine): Lemont and Joliet, Illinois.Lampterocrinus inflatus (Hall).Balanocrinus inflatus Hall, Rep. Sup. Geol. Surv. Wisconsin, 1861, p. 22.Lampterocrinus inflatus Hall, Prelim! Notice, 18th Rep. New York State Cab.Nat. Hist., 1865, p. 24, pi. 1, fig. 6; 20th Rep. New York State Cab. Nat.Hist., 1868 (extras 1865), p. 328, pi. 10 (1), fig. 6; rev. ed., p. 374, pi. 10,fig. 6.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p.81, figs. 2-3.Niagaran (Racine): Racine, Wisconsin; Bridgejjort and Romeo, Illinois.Lampterocrinus parvus Hall.Lampterocrinus parvus Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882,p. 272, pi. 15, fig. 6; Trans. Albany Inst., 10, 1883, p. 65.Niagaran (Waldron): Waldron, Indiana.Lampterocrinus robustus Weller.Lampterocrinus robustus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Hurw, 4,pt. 1, 1900, p. 83, pi. 2, figa. 4, 5.Niagaran (Racine): Romeo, Lemont, and Joliet, Illinois.Lampterocrinus? subglobosus Weller.Lampterocrinus? subglobosus Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv.,4, pt. 1, 1900, p. 83, pi. 3, fig. 5.Niagaran (Racine): Bridgeport and Hawthorne, IlLinoiH.84243??Bull. 92?15 44 690 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Lauipterocrlnus tennesseensis Roemer.Lampterocrinus tennesseensis Roemer, Sil. Fauna West. Tennessee, Breslau,1860, p. 37, pi. 4, figs, la, lb; Letli. geog., 1, Leth. Pal., Atlaa, 1876, pi. 11,fig. 13.?Miller, N. A. Geol. Tal., 1889, ]). 257, fig. 347.?Wachsmuth andSpringer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 208, pi. 13, figs.lOa-d.?Bather, Treatise on Zoology, pt. 3, Ecliiuoderma, 1900, p. 199, fig.124.?Foerste, Jour. Geol., 11, 1903, p. 712 (loc. occ.).?Wood, BuU. U. S.Nat. Mus., 64, 1909, p. 103, pi. 7, figs. 8-10.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 548, fig. 1877.Balanocrinites sculptus Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1850, p. 419;Proc. Amer. Assoc. Adv. Sci., 2, 1850, p. 60 (nom. nud.).Niagaran (Brownsport): Decatur and Wayne Counties, Tennessee.Pksiotypes.?C&t. No. 39920, U.S.N.M. (Troost's type of B. sculptus).Lapworthura cylindrica Parks. See Taeniaster cyUndricus.LASIOCRINUS Kirk. Genotype: Homocrinus scoparius Hall.Homocrinus Hall (part). Pal. New York, 2, 1852, p. 185; ibid., 3, 1859, p. 102.?Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, Rev. Pal., pt.1, 1879; ibid., 1886, p. 77; pt. 3, p. 220.?Batlier, Crin. Gotland, 1893. p. 101.Lasiocrinus Kirk, Proc. U. S. Nat. Mus., 46, 1914, p. 482.Laslocrlnus scoparius (Hall).Homocrinus scoparius Hall, Pal. New York, 3, 1859, p. 102, pi. 1, figs. 1-9. ? Bather, Kongl. Svenska Vet. Akad. Handl., 25, 1893, p. 105.?Talbot, Amer.Jour. Sci., 20, 1905, p. 19, pi. 3, fig. 3.Dendrocrinus (Homocrinus) scoparius Wachsmuth and Springer, Proc. Acad. Nat.Sci. Philadelphia, 1881, p. 302 (Rev. Pal., 1, p. 79).Lasiocrinus scoparius Kirk, Proc. U. S. Nat. Mus., 46, 1914, p. 482.Helderbergian (I^Ianlius transition beds or Coeymans): Schoharie and WheelocksHill, Litchfield, Herkimer County, New York.LASIOOBAPTUS Lapworth. Genotype: L. costatus Lapworth.Lasiograptus Lapworth, Geol. Mag., 10, 1873, p. 559.?Zittel, Handb. Pal., 1, 1879,p. 302.?Koken, Die Leitfossilien, Leipzig, 1896, p. 329.?Roemer and Freeh,Leth. geog., 1, Theil, Leth. Pal., 1, 3, Lief, 1897, p. 671.?Ruedemann, Mem.New York State Mus., 11, pt. 2, 1908, pp. 472^79.Lasiograptus blmucronatus (Nicholson).Graptolithus sp. Hall, Pal. New York, 3, 1859, p. 507, figs. 1-3.Diplograptus bimucronatus Nicholson, Ann. Mag. Nat. Hist., 4, 1869, p. 236, pi.11, fig. 12.?Clarke, Geol. Mag., 4th ser., 9, 1902, p. 499.Hiillograptus bimucronatus Lapworth, Cat. West. Scott. Foss., 1876, p. 7, pi. 2,fig. 58.Ilallograptus (Lasiograptus) bimucronatus Roemer and Freeh, Leth. Pal., 1, 1897,p. 672, fig. 224.Diplograptus (Hallograptus) bimucronatus Lapworth, Belfast Field Club, Ann.Rep. and Proc, 2d ser., app., pt. 4, 1877, p. 134, pi. 6, fig. 23.Lasiograptus bimucronatus Tullberg, Sver. Geol. Und. Ser. C, No. 50, 1582, p. 20.Lasiograptus mucronatus Lapworth, Proc. and Trans. Roy. Soc. Canada, 4, 1887,p. 178.?Gurlcy, Jour. Geol., 4, 1896, p. 299.?Roemer and Freeh, Leth. Pal.,1, 1897, p. 072, fig. 224.?Ruedemann, Mem. New York State Mus., 11, pt. 2,1908, pp. 481-483, pi. 29, figs. 12-18; pi. 30, figs. 6-8; pi. 31, figs." 4-5; textfigs. 458-4G3. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 691Laslograptus blmucronatus?Continued.Graptolithus whitfieldi (part) Hall, Geol. Surv. Canada, Canadian Org. Rem., dec.2, 1865, pi. B, figs. 6-11.Ordovician: Scotland (Glenkiln); Wales; Ireland; Scania; Kenwood, Stockport,etc., New York (Xormanskill); Arkansas.Laslo^raptiis blmucronatus timidus Ruedemann.Lasiograptiis bimucronatus mut. timidus Ruedemann, Mem. New York StateMus., 11, pt. 2, 1908, pp. 483-484, pi. 29, figs. 19, 20; text figs. 464, 465.Utica: Flat Creek, near Mohawk, and Holland Patent, New York; Cincinnati,Ohio.Laslograptus (Thysanograptus) eucharis (Hall).Retiograptus euchaiis Hall, Geol. Surv. Canada, Can. Org. Rem., dec. 2, 1865, p.146, pi. 14, fig. 9; New York State Cab. Nat. Hist., 20th Ann. Rep., 1868,pp. 206, 224, pi. 4, fig. 9.?Walcott, Trans. Alb. Inst., 10, 1881 (adv. sheets,1879, p. 35).?Ami, Can. Geol. Surv. Ann. Rep., pt. 11, 1889, pp. 23K, 117K;Can. Rec. Sci., 5, 1893, pp. 180, 236.?Roemer and Freeh, Leth.geog., ITheil.,Leth. Pennsylvania, 1, 3 Lief., 1897, p. 608, fig. 173.Retiograpsus eucharis Nicholson, Mon. British Grapt., 1872, p. 124, fig. 63.Glossograptus? eucharis Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908,pp. 397-400, pi. 26, figs. 18, 19; pi. 27, figs. 11-13, text figs. 346-352.Diplograptus pristiniformis Ruedemann, Amer. Jowr. Sci., 3d ser., 18, 1895, pp.453, 455, figs. 2, 3.?Wiman, Bull. Geol. Inst. Upsala, 2, pt. 2, 1895, pp. 69,71, figs. 2, 3.Diplograptus ruedemanni Gurley, Jour. Geol., 4, 1896, pp. 298, 307.?Ruedemann,14th Rep. State Geol. New York for 1894, 1897, p. 219, pi. 1, figs. 2-4, 6-7, 10;pi. 2, figs. 1-4; pi. 5, fig. 1.?Tornquist, Zoolog.Centralbl., 4, 1897, p. 5.?Ruedemann, Bull. New York State Mus., 42, 1901, p. 523 ff.Diplograptus cf. aculeatus Freeh, Roemer and Freeh, Leth. Pal., 1, 1897, p. 632,pi. A, fig. 2.Laslograptus (Thysauograptus) eucharis Ruedemann, Bull. New York State Mus.,162, 1912, p. 84, figs. 24-28.Trenton: Lake St. John, etc., Quebec (Collingwood); Vermont; Mohawk andHudson Valleys, New York (Snake Hill, Canajoharie, and Schenectady).Laslograptus mucronatus (Hall).Graptolithus mucronatus Hall, Pal. New York, 1, 1847, p. 268, pi. 73, figa. la-d.Diplograptus mucronatus Geinitz, Die Graptolithen, 1852, p. 23.?Carruthers,Mem. Geol. Surv., 3, 1866, 330, pi. IIA, fig. 6; pi. 12, fig. 1; ibid. 5, 1868, p.131, pi. 5, fig. 2.?Nicholson, Geol. Mag., 4, 113, pi, 7, figs. 5, 5a; Quart. Jour.Geol. Soc. London, 24, 1868, p. 139.?McCoy, Pal. Victoria, Prodr., doc. 1,1874, p. 10, pi. 1, fig. 5.?Walcott, Trans. Alb. Inst., 10, 1883 (adv. sheets,1879, p. 34).?Ami, Can. Geol. Surv. Rep., 2d eer., 3, pt. 2, 1889, p. 117K.?Walcott, Bull. Geol. Soc. Am., 1, 1890, p. 339.?Clark, Geol. Mag., 4th ser.,9, 1902, p. 498.Diplograptus (Laslograptus) mucronatus Lapworth, Belfast Nat. Field Club Ann.Rep., 1, 1877, p. 134, pi. 6.Laslograptus mucronatus Lapworth, Proc. and Trans. Roy. Soc. Canada, 4, 1887,178f.?Gurley, Geol. Surv. Arkansas, Ann. Rep., 3, 1892, p. 413.?RuedemannBull. New York State Mus., 42, 1901, p. 644.?Wcller, Geol. Surv. NewJersey, Pal., 3, 1902, p. 212, pi. 16, figs. 16, 17.?Dale, Bull. U. S. Geol. Surv.,242, 1904, p. 33.?Ruedemann, Mom. New York State Mus., 11, pt. 2, 1908,pp. 479-481, pi. 29, figs. 9-11; pi. 30, figs. 1-5; pi. 31, figs. 1-3; figs. 456, 457.Chazyan (Normanskill): Mt. Moreno, Kenwood, Glenmont, etc., New York;Arkansas; Quebec. Glenkiln shale of Great Britain. 692 BULLETIN 02, UNITED STATES NATIONAL MUSEUM.Lasiooraptus muceonatus Lapworth. See Lasiograptus bimucronatUB.LASIOTHRIX Dawson and Hinde. Genotype: L. curvicoetata Dawson and Hinde.Lasiothrix Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 50.?Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 114.?Miller, N. A. Geol. Pal., letApp., 1892, p. 667.Lasiothrix ourvlcostata Dawson and Uinde.Lasiotlirix curvicostata Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4,1890, p. 51, fig. 21.?Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 144, fig. 24.Canadian? (Levis?): Metis, Quebec.Lasiothrix llabellata Dawson and Hinde.Lasiothrix flabellata Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4,1890, p. 51, fig. 22.?Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 115, fig. 25.Canadian? (Levis?): Metis, Quebec.LECANOCRINUS HaU. Genotype: L. macropetalus Hall.Lecanocrinus Hall, Pal. New York, 2, 1852, p. 199.?Pictet, Traite de Pal., 2d od.,4, 1857, p. 319.?Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857,p. 278.?Schultze, Denk. d. Kais. Akad. "Wiss., Math.-Xatunv., CI. 26, Abth. 2,1867, p. 152, fig. 7.?"Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1879, p. 262 (Rev. Pal., pt. 1, p. 39); ibid., 1890, p. 388.?Beyrich,Ann. Mag. Nat. Hist., 4th ser., 7, 1871, p. 404.?Angelin, Icon. Crinoid., 1878,p. 11.?Zittel, Handb. Pal., 1, 1879, p. 355.?Miller, N. A. Geol. Pal, 1889,p. 257.?Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p.147, fig. 54.?Bather. Treatise on Zool , pt. 3, Echinoderma, London, 1900,p. 188.?Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 163.?Grabau.Bull. New York State Mus., 45, 1901, p. 160; Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 160.?Springer, Amer. Geol., 30, 1902, p. 94; Jour. Geol., 14, 1906,p. 517.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 564.?Springer,Zittell-Eastman Textb. Pal., 2d ed., 1913, p. 203.Cyrtidocrinus Angelin Icon. Crin. Suec, 1878, p. 20.Lecanocrinus caliculus Hall. See Pycnosaccus calyculus.Lecanocrinus elegans Billings. See Protaxocrinus cleans.Lecanocrinus excavatus Ringueberg. See Asaphocrinua ornatus.Lecanocrinus greenei Miller and Gurley. See Aniaocrinus greenei.Lecanocrinus homlspherlcus Rowley.Lecanocrinus hcinisphericus Rowley, Amer. Geol., 34, 1904, p. 271, pi. 14, tig.17-19.Niagaran (Bainbridge): Near St. Mary's, Ste. Genevieve County, Missouri.Observation.?Probably the same aa L. piaiformiB (Roemer).Lecanocrinus incisus Ringuebei^g. See Asaphocrinua incisus.Lecanocrinus lmvib Billings. See Protaxocrinus Isevis.Lecanocrinus macropetalus Hall.Lecanocrinus macropetalus Hall, Pal. New York, 2, 1852, p. 199, pi. 45, figs,la-h.?Emmons, Man. Geology, 1860, p. 63, fig. 42.?Miller, N. A. Geol. Pal..1889, p. 257, fig. 348.?Grabau, Bull. New York State Mus.. 45, 1901, p. 160,fig. 55; Bull. Buffalo Soc. Nat. Sci., 7, p. IGO, fig. 55.?Grabau and Shimer,N. A. Index Foeaila, 2, 1910. p. 564, fig. 1901, 1902. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 693Lecanocrlnus macropetaius?Continued.Cyathocrinus? Hall, Geol. 4th Dist. New York, Tab. Org. Rem., No. 21, 1843,figs. 5a-b.CUnton (Rochester) : Lockport, New York.Lecanocrlnus meniscus Springer.Lecanocrinus meniscus Springer, Mono. Crin. Flex., Smith. Inst, (in press).Niagaran (BroAvnsport): Decatur County, Tennessee.Lecanocrinus nitidus Ringueberg. See Asaphocrinus omatus.Lecanocrinus ornatus Hall. See Asaphocrinus ornatus.Lecanocrinus oswegoensis Miller and Gurley. See Anisocrinus oswegoensis.Lecanocrinus pisiformis (Roemer).Poteriocrinua pisiformis Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 54,pi. 4, figs. 7a-d.?Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 392.Arachnocrinus pisiformis Meek and Worthen, Geol. Surv. Illinois, 2, 1866, p. 177(gen. ref.).?^^Vachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia,Rev. Pal., pt. 1, 1879, p. 94.?Miller, N. A. Geol. Pal., 1889, p. 224, fig. 248.Cyathocrinus pisiformis WTiitfield, Geol. "Wisconsin, 4, 1882, p. 353 (gen. ref.).Lecanocrinus pisiformis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila-delphia, 1886, p. 268 (Rev. Pal., pt. 2, 227).Niagaran: Decatur County, Tennessee (Brownsport); ?Wieconsin (Racine).Observ^ation.?See also L. hemisphericus Rowley.Lecanocrinus pusillus (Hall).Cyathocrinus pusillus Hall, Trans. Albany Inst., 4, 1863, p. 200; Prelim. Notice,18th Rep. New York State Cab. Nat. Hist., 1865, p. 20; 20th Rep. New YorkState Cab. Nat. Hist., 1868, p. 324, rev. ed., 1870, p. 366; 28th Rep. NewYork State Mus. Nat. Hist., doc. ed., 1875, 1877, pi. 15, figs. 1-6.Lecanocrinus pusillus Hall, 28th Rep. New York State Mus. Nat Hist., mus. ed.,1879, p. 136, pi. 15, figs. 1-6; 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist.,1882, p. 267, pi. 14, figs. 1-6; pi. 15, fig. 7.?Springer, Mono. Crin. Flex.,Smith. Inst, (in press).Lecanocrinus tennesseensis Miller, 17th Ann. Rep. Indiana Dep. Geol. Nat. Res.,1892, p. 651, pi. 7, figs. 7, 8 (adv. sheets, 1891, p. 41).Niagaran (Waldron): Waldron, Indiana; Newsom, Tennessee.Lecanocrinu.s pusillus Winchell and Marcy. See Lecanocrinus waukoma.Lecanocrlnus puteolus Ringueberg.Lecanocrinus puteolus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 11,pi. 1, fig. 8.Clinton (Rochester): Lockport, New York.Lecanocrinus simplex Hall. See Ichthyocrinua isevis.Lecanocrlnus solldus Ringueberg.Lecanocrinus solidus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, 1886, p. 8, pi.I, fig- 4.Clinton (Rochester): Lockport, New York.Lecanocrinus tennesseensis Miller. See Lecanocrinus pusillus.Lecanocrinus waukoma (Hall).Cyathocrinus waukoma Hall, Adv. Pub. 18th Rep. New York State Cab. Nat.Hist., 1865, p. 20, pi (2), figs. 11, 12; 20th Rep. New York State Cab. Nat.Hist., 1868, p. 324, pi. 11 (2), figs. 11, 12; rev. ed., 1870, p. 367, pi. 11, figs.II, 12.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 191, fig. 694 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Lccanocrlnus waukoma?ContiBued.Lecanocrinus waukoma Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt.1, 1900, p. 148, pi. 15, figa. 6-11.LecanocrinuB pusillus Winchell and Marcy (not Hall), Mem. Boston Soc. Nat.Hiet.. 1, 1865, p. 90.Niagaran (Racine): Racine and Waukeslia, Wiaconain; Bridgeport, Romeo,Lemont, etc., IlUnois.Leda levata Emmons. See Ctenodonta levata.Leda plana Emmons. See Lyrodesma planum.Leda pulchella Emmonfl. See Ctenodonta pulchella.Leioclema Rominger. See Lioclema TJlrich.Leioclema FLORIDA UMch. See Nicholsonella florida.Leioclema? laminatum TJlrich. See FistuUpora laminata.Leioclema singulare Ulrich. See Trematopora? singularis.Leioditia Ulrich. See Elpe Barrande.LEIOPTERIA Hall. Genotype: L. dekaj-i Hall.Leiopteria Hall, Pal. New York, 5, pt. 1, Lam. 1883, p. 4; ibid., 1884, p. 13; 35thRep. New York State Mus. Nat. Hist., 1884, p. 406; Rep. State Geol. NewYork, 1884, p. 14.?Wludborne, Mon. Dev. Fauna South England, 2, Pal. Soc,1892, p. 78.?Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 246.?Hind,Mon. British Carb. Lam., 2, Pal. Soc, 1901, p. 9.Liopteria Miller, N. A. Geol. Pal., 1889, p. 484.?Clarke, Archivos Mus. Nat. RioJaneiro, 10, Eng. ed., 1900, p. 48.?Grabau, Bull. Buffalo Soc. Nat. Sci., 7,1901, p. 208; Bull. New York State Mus. 45, 1901, p. 208.?Grabau andSliimer, N. A. Index Fossils, 1, 1909, p. 424.Leiopteria rubra Williams.Leiopteria rubra Williams, Proc U. S. Nat. Mus., 45, 1913, p. 345, pi. 31, fig. 4.Silurian (Pembroke): Giffs Bay, Washington County, Maine.Holotype.?C&t. No. 58971, U.S.N.M.Leiopteria subplana (Hall).Avicula subplana Hall, Pal. New York, 2, 1852, p. 283, pi. 59, figs. 3a-c.?RogersGeol. Pennsylvania, 2, pt. 2, 1858, p. 823, fig. 628.?Lesley, Geol. SurvPennsylvania, Rep. P 4, 1889, p. 70, fig.Pterinea subplana Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p52 (gen. ref.).Pteronites? subplana Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 243, pi. 22fig. 1.Liopteria(?) subplana Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 208, fig136; Bull. New York State Mus., 45, 1901, p. 208, fig. 13C.Leiopteria? subplana Grabau and Slumer, N. A. Index Fossils, 1, 1909, p. 424fig. 554.Silurian: Lockport, etc (Rochester-Guelph) and Schoharie Valley, New York(Cobloekill).?Helderbergian (Keyeer): Two milee south Tristatee, New York.LEIOSTEGIUM RajTnond. Genotype: Bathyurus quadratus Billings.Leioetegium Rajinond, Bull. Victoria Memorial Mus., 1, 1013, p. 68. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 695Lelostegium breviceps (Billings).Bathyurus breviceps Billings, Pal. Foes., 1, Geol. Sur\^ Canada, 1865, p. 262,fig. 246.Leiostegium bre\'iceps Ra>Tnond, Bull. Victoria Memorial Mus., 1, 1913, p. 69.Chazyan (Quebec?N): Table Head, Newfoundland.Lelostegium quadratum (Billings).Bathyurus quadratus Billings, Canadian Nat. Geol., 5, 1860, p. 321, fig. 27; Geol.Canada, Geol. Surv. Canada, 1863, p. 238, fig. 272; Pal. Fosa., 1, Geol. Surv,Canada, 1S65, p. 412, fig. 396.Leiostegium quadratum Raymond, Bull. Victoria Memorial Mua., 1, 1913, p. 68,pi. 7, fig. 17.Canadian (Levis-Limestone): Point Levis,' Quebec.LEJOPTGE Hawle and Corda. Genotype: Battus Isevigatus Hisinger.Lejopyge Hawle and Corda Abh. bShm. Gesell. Wiss., 5, 1847, p. 51, pi. 3, fig. 25.I^Jopyge cyclopyge? (TuUberg).Agnostus cyclopyge Tullberg, Sveriges Geol. XJndersok., eer. C, No. 42, 1880, p.26, pi. 2, fig. 15.Agnostus cf. cyclopyge Matthew, Geol. Surv. Canada, Rep. Camb. Rocks C.Breton, 1903, p. 222.Canadian (Bretonian?Div. C3b): East Bay, east of Bras d 'Or Lake, Cape Breton,Nova Scotia. Lower Ordovician of Europe.Lepadocrinus Cumings. See Lepadocystis Carpenter.Lepadocrinus Hall (part). See Lepocrinites Conrad and Apiocystites Forbes.Lepadocrinus moorei Cumings. See Lepadocystis moorei.LEPADOCYSTIS Carpenter. Genotype: Lepocrinites moorei Meek.Lepadocystis Carpenter, Linn. Soc. Jour. Zool., 24, 1891, p. 10.?Bather, TreatiseonZoology, pt. 3, Echinoderma, 1900, p. 61.?Foerste, Bull. Sci. Lab. DenisonUniv., 17, 1914, p. 458.Lepadocrinus Zittel (part), Handb. Pal., 1, 1879, p. 421.?^Miller (part), N. A.Geol. Pal., 1889, p. 257.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Rea.Indiana, 1908, p. 714.Meekocystis Jaekel, Stammesges. Pelmat., 1, Thecoidea u. Cystoidea, Berlin,1899, p. 277. (Genotype: Lepocrinites moorei Meek.)Lepadocystis clintonensis Parks. See Brockocystis clintonensifl.Lepadocystis moorei (Meek).Lepocrinites moorei Meek, Amer. Jour. Sci., 3d ser., 2, 1871, p. 296; Geol. Surv.Ohio, Pal., 1, 1873, p. 39, pi. 3, figs. 4a-c.Lepadocystis moorei Carpenter, Linn. Soc. Jour. Zool., 24, 1891, 10.?Bather,Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 61, fig. 28.?Foerste,Bull. Sci. Lab. Denison Univ., 17, 1914, p. 459, pi. 5, fig. 1.Meekocystis moorei Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin,1899, p. 278, fig. 58, p. 279.Lepadocrinus moorei Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana,1908, p. 727, pi. 4, figs. 6-6b.Richmond (Whitewater): Richmond, Indiana. 696 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.lEPERDITELLA Ulrich. Genotype: Leperditia inflata Ulrich.Leperditia (part) Ulrich, Amer. Geol., 10, 1892, p. 263.Leperditella Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636; Zittel-Eastman Textb.Pal., 1, 1900, p. 643.?BaH.?lcr, ibid., 2d ed., 1913, p. 737.?Grabau and Shimer.N. A. Index Fossils, 2, 1910, p. 339.Leperditella a^quilatera (Ulrich).Leperditia sequilatera Ulrich, Amer. Geol., 10, 1892, p. 265, pi. 9, figs. 9-11.Leperditella eequilatera Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636, fig. 46c.Stones River (Ridley): Bottom of gorge at High Bridge, Kentucky.Holotype: Cat. No. 41312, U.S.N.M.Leperditella eanalls Ulrich.Leperditella canalis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 637, pi. 43, figs. 1-3.Leperditia canalis Miller, N. A. Geol. Pal., 2d App., 1897, p. 788.Black River (Platteville): Minneapolis and near Cannon Falls, Minnesota.Holotype.?<'3it. No. 41304, U.S.N.M.Leperdftella? dorsicornis Ulrich. See Primitia dorsicomis.Leperditella germana (Ulrich).Leperditia germana L'lrich, Amer. Geol., 10, 1892, p. 266, pi. 9, figs. 16-18.Leperditella germana Ulrich, Geol. Minnesota, 3, pt. 2, 1894, pp. 636, 638, pi. 45,figs. 24-26.Black River (Platteville): Mineral Point, Wisconsin.Holotype.?Csit. No. 41307, U.S.N.M.Leperditella? glabra (Ulrich).Primitia glabra Uh-ich, Jour. Cincinnati Soc. Nat. Hist.. 13, 1890, p. 134, pi. 10,figs. 9a-9c.Leperditella? glabra Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 639.Richmond (^\'hitewater): Oxford and Blanchester, Ohio; Richmond, Indiana.Holotype.?Csit. No. 41827, U.S.N.M.Leperditella Inflata (Ulrich).Leperditia iuilata Ulrich, Araer. Geol., 10, 1892, p. 205, pi. 9, figs. 12-15.Leperditella inflata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 036, figs. 46a-46d.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 339, fig. 1656a-c.Stones River (Ridley): Bottom of gorge at High Bridge, Kentucky.Cotypes.?CAt. No. 41311, U.S.N.M.Leperditella? labellosa (Jones).Isochilina labellosa Jones, Cent. Canadian Micro-Pal., Geol. Surv. Canada, pt. 3,1891, p. 09, pi. 10, figs. 16a-c, 17, 19.Leperditella? labellosa l'lrich, Geol. Minnesota, 3, pt. 2, 1894, p. 637.Stones River (Pamelia): Aylmer, Quebec; Gloucester, Carleton County, Ontario.Leperditella macra Ulrich.Leperditella macra Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 638, pi. 43, figs. 7-9.Leperditia macra Miller, N. A. Geol. Pal., 2d App., 1897, p. 788 (gen. ref.l.Black River (Decorah): Minneapolis, Minnesota.nolotype.?Cat. No. 41306, U.S.N.M.Ijeperdltella mundula (Ulrich).Lei)erditia mundula Ulrich, Amer. Geo!., 10, 1892, p. 265, pi. 9, figs. 4-8.Leperditella mundula Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636, fig. 46e-16h.Stones River (Ridley): Bottom of gorge at High Bridge, Kentucky.Co/j/pea.?Cat. No. 41309, U.S.N.M. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 697Leperdltella? obscura (Jones).Leperditia? obscura Jones, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p.71, pL 10, figs. 15a-c.Leperdltella? obscura Ulrich, GeoL Minnesota, 3, pt. 2, 1894, p. 637.Trenton: Falls of Lorette, Quebec.Leperdltella ornata Weller.Leperdltella ornata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 209, pi. 13,figs. 13-15.Trenton: Near Iliff's Pond, two mUes southeast of Newton, New Jersey.Leperdltella persimills Ulrich.Leperdltella persimills Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 637, pi. 43,figs. 4-6.Leperditia persimilis Miller, N. A. Geol. Pal., 2d App., 1897, p. 788 (gen. ref.).Black River (Decorah): Minneapolis, Minnesota.Holotype.?Cat. No. 41308, U.S.N.M.Leperdltella sulcata (Ulrich).Leperditia sulcata Ulrich, Amer. Geol., 10, 1892, p. 266, pi. 9, figs. 19-21.Leperdltella sulcata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636, fig. 46j. ? Bassler, Bull. Virginia Geol. Surv., 2a, 1909, pi. 23, fig. 14.Black River (Lowville) : High Bridge, Kentucky; Tennessee; Virginia.Holotype?Cat. No. 41313, U.S.N.M.Leperdltella sulcata ventrlcornis Ulrich.Leperdltella sulcata var. ventrlcornis Ulrich, Amer. Geol., 10, 1892, p. 266, pi. 9,figs. 22, 23; Geol. Minnesota, 3, pt. 2, 1894, p. 636, fig. 46k.Black River (Lowville): High Bridge, Kentucky.Holotype.?Cat. No. 41314, U.S.N.M.Leperdltella tumlda (Ulrich).Leperditia tumlda Ulrich, Amer. Geol., 10, 1892, p. 264, pi. 9, figs. 1-3.Leperdltella tumlda Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 636.?Bassler,Bull. Virginia Geol. Surv., 2a, 1909, pi. 23, fig. 13.Black River (Lowville) : High Bridge, Kentucky; Tennessee; Virginia.Holotype.?Cat. No. 41310, U.S.N.M.LEPERDITIA Rouault. Genotype: L. brittanlca Rouault.Leperditia Rouault, Bull. Soc. Geol. France, 2d ser., 8, 1851, p. 377.?Jones, Ann.Mag. Nat. Hist., 2d ser., 1856, p. 84; Monthly Microsc. Jour., 4, 1870, pp.188-190.?Barrande, Syst. Sll. du Centre Boheme, 1 Suppl., 1872, p. 523.?Schmidt, Mem. I'Acad. Imp. Sci. St. Petersburg, 21, 1873.?Miller, Cincin-nati Quart. Jour. Sci., 1, 1874, p. 121.?Alth, Anhandl. geol. Relchsanstalt, 7,Heft 1, 1874, p. 66.?Nicholson and Lydecker, Man. Pal., 1, 1879, p. 506.?Jones, Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 334.?Schmidt, Mem. I'Acad.Imp. Sci. St. Petersburg, 31, 1883.?Vine, Proc. Yorkshire Geol. Polyt. Soc,n. s., 8, 1884, p. 234.?Zlttel, Handb. Pal., 2, 1885, p. 551.?Jones and Klrkby,Proc. Geol. Assoc, 9, 1887, p. 503.?Nicholson and Lydecker, Man. Pal., 1,1879, p. 506.?Miller, N. A. Geol. Pal., 1889, p. 552.?Vogdes, Ann. NewYork Acad. Sci., 5, 1889, p. 23, pi. 2, fig. 17.?Miller, N. A. Geol. Pal., IstApp., 1892, p. 708.?Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 633.?Koken,Die Leitfossilien, 1896, p. 40.?Grabau, Bull. Buffalo Soc Nat. Sci., 6, p. 307;ibid., 7, 1901, p. 218.-Ulrich, Zittel's Textb. Pal. (Amer. ed.), 1900, p.643.?Grabau, Bull. New York State Mus., 45, 1901, p. 218.?Cumings, 32dAnn. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1041.?Gral)au and Shimer,N. A. Index Fossils, 2, 1910, p. 339.?Baesler, Zittel-Eastman Textb. Pal.,2ded.. 191b, p. 737. 698 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Lepeeditla. iEQuiLATERA Uliich. See Leperditella sequilatera.Leperdltla alta (Conrad).Cytherina alta Conrad in Vanuxem, Nat. Hist. New York, Geol., 3, 1842, p112, fig. 6.?Mather, Geol., New York, 1, 1843, p. 349, fig. 6.?Hall, ibid., 41843, p. 142, fig. 6; tab. ill. 26, fig. 6.?Owen, Amer. Jour. Sci. Arts, 2d ser.1, 1846, p. 47, fig. 6.?Emmons, Man. Geol., 1860, p. 113, fig. 102.?Lincklaen14th Rep. New York State Cab. Nat. Hist., 1861, p. 58, pi. 9, fig. 6.Leperditia alta Jones, Ann. Mag. Nat. Hist., 2d ser., 17, 1856, p. 88, pi. 7, figs. 6, 7ibid., 3d ser., 1, 1858, p. 250, pi. 10, figs. 8, 9; Geol. Surv. Canada, dec. 3,p. 95.?Hall, Pal. New York, 3, 1859, p. 373, pi. 79a, figs. 6a-e.?Emerson(?)Narrative Hall's Sec. Arctic Exped., U. S. Navy Dep., 1879, p. 579, fig. 5.?Jones, Ann. Mag. Nat. Hist., 5th ser., 8, 1881, p. 345.?^^^utfield, Geol. Wis-consin, 4, 1882, p. 323, pi. 25, figs. 8, 9.? Chamberlin, Geol. Wisconsin, 1,1883, p. 198, fig.?Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 342;Quart. Jour. Geol. Soc. London, 44, 1890, p. 25, pi. 1, figs. 6a, b; Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 84, pi. 13, figs. 10, 11.?Weller, Geol.Surv. New Jersey, Pal., 3, 1903, pp. 259, 265, pi. 24, figs. 25-28.?Grabau,Bull. New York State Mus., 92, 1906, p. 115, fig. 24a.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 341.Cayugan and Helderbergian: Manlius, etc.. New York; New Jersey; etc.Leperditia alta Whitfield (1891). See Leperditia ohioenais.Leperdltla altoldes Weller.Leperditia altoides Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 252, pi. 23,figs. 1, 2.?Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p.513, pi. 97, figs. 8, 9.Helderbergian: Flatbrookville, New Jersey (Rondout); Devil's Backbone, nearCumberland and Tonoloway, Maryland (Keyser).Leperditia altoides Grabau. See Leperditia ohioensis.Leperditia amygdallna Jones.Leperditia amygdalina Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 341; Geol.Surv. Canada, dec. 3, 1858, p. 97, pi. 11, figs. 18, 19; Ann. Mag. Nat. Hist.,5th ser., 8, 1881, p. 344, pi. 19, fig. 9; ibid., 14, p. 342; Cont. Micro-Pal., Geol.Surv. Canada, pt. 3, 1891, pp. 98, 99.Stones River (Pamelia): Near L' Original, Canada.Leperdltla angullfera WTiitfield.Leperditia angulifera AMiitfield, Ann. New York Acad. Sci., 2, 1882, p. 197;ibid., 5, 518, pi. 5, figs. 28-30; Geol. Sur^-. Ohio, Pal., 7. 1893, p. 418, pi. 1,figs. 28-30.?Sherzer, Geol. Surv. Michigan, 7, pt. 1, 1900, pi. 17, figs. 28-30.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 310, fig. 1654.?Grabau,Mirhigan Geol. Surv., Geol., Ist ser., 1909, p. 203. pi. 30, figs. 28-30.Lower Monroan (Greenfield): Greenfield, Ohio.Leperditia auna Jones.Leperditia anna Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 247, pi. 9, fig. 18;Geol. Surv. Canada, dec. 3, 1858, p. 96, pi. 11, fig. 13; Cont. Micro-Pal.,Geol. Surv-. Canada, pt. 3, 1891, pp. 98, 99.Canadian (Beekmantown): St. Anne, Canada.Leperditia anticostiana (Jones).I' Dep., 1879, p. 580, fig. 6.?Jones, Ann.Mag. Nat. Hist., 5th ser, 14, 1881, p. 340.?Dwight, Trans. Yasser Bros. Inst.5, 1890, p. 76.?Jones, Geol. Siu^. Canada, Cont. Micro-Pal., pt. 3, 1891, pp.97, 99.Canadian (Beekraantown): Grenville, etc., Quebec.Leperditia Canaden.sis var. anticostiana Jones. See Leperditia anticostiana.Leperditia Canadensis var. Josephiana Jones. See Leperditia fabulites.Leperditia canadensis labrosa Jones.Leperditia Canadensis var. labrosa Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858,p. 245, pi. 9, fig. 13; Geol. Surv. Canada, 3, 1858, p. 93, pi. 11, fig. 8; Ann.Mag. Nat. Hist., 5th ser., 8, 1881. p. 343: Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, pp. 97, 99.Chazyan (Aylmer): Hawkesbury. Ontario.Leperditia canaden.sis louckiana Jones.Leperditia Canadensis var. Louckiana Jones, Geol. Sur\'. Canada, dec. 3, 1858,p. 93, pi. 11, fig. 11; Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891. pp.97, 99.Leperditia canadensis? Jones, Ann. Mag. Nat. Hist., 3d ser.. 1, 1858, p. 245. pi. 9,figs. 16, 17.T^eperdilia fabulites var. louckiana Jones, Ann. Mag. Nat. Hist., 5th ser., 8, 1881,p. 343.Leperditia louckiana Jones, Ann. Mag. Nat. Hist.. 5th ser.. 14, 1884. p. 340. ? Dwight. Vasaar Bros. Inst.. 5, 1890, p. 76 (loc. occ).Trenton: Loucks Mill. Castor River, Canada. BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 701Leperditia Canadensis var. nana Jones. See Leperdkia nana.Leperditia cauadensls pauquettiana Jones.Leperditia Canadensis var. Pauquettiana Jones, Geol. Surv. Canada, dec. 3, 1858,p. 94, pi. 11, fig. 12; Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, pp.97, 99.Leperditia fabulites var. pauquettiana Jones, Ann. Mag. Nat. Hist., 5th ser., 8,1881, p. 343.Black River (Leray): Pauquette's Rapids, AUumette Island, Ottawa River,Canada.Leperditia canalis Miller. See Leperditella canalis.Leperditia capax Safford.Leperditia capax Safford, Geol. Tennessee, 1869, p. 290 (nom. nud.).Trenton: Nashville, Tennessee.Leperditia claypolei Jones. See Priniitiella claypolei.Leperditia concinnula Billings.Leperditia concinnula Billings, Geol. Surv. Canada, Pal. Foss., 1, 1865, p. 299.Chazyan (Quebec-L, M): Point Rich and Table Head, Newfoundland.Leperditia crepiformis Ulrich. See Jonesella crepidiformis.Leperditia cylindrica (Hall).Cytherina cylindrica Hall, Pal. New York, 2, 1852, p. 14, pi. 4, figs. 8a, b.Leperditia (Isochilina) cylindrica Jones, Ann. Mag. Nat. Hist, 3d ser., 1, 1858,p. 253.Leperditia cylindrica Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 80(gen. ref.).?Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 344.Isochilina cylindrica Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 218; Bull.New York State Mus., 45, 1901, p. 218.?Grabau and Shimer, N. A. IndexFossils, 2, 1910, p. 342.Upper Medinan: Medina, Lockport, etc.. New York.Leperditia (Isochilina) cylindrica Hall. See Bythocjpris cylindrica.Leperditia (?Primitia) dorsicornis Ulrich. See Primitia dorsicomis.Leperditia elongata Weller.Leperditia elongata, Weller, Geol. Surv. New Jersey, Rep. Pal., 3, 1903, p. 259,pi. 23, fig. 13.?Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913,p. 514, pi. 97, fig. 11.Helderbergian: Two miles south of Tristates, New York (Rondout); Tonoloway,Maryland (Keyser).Leperditia faba Hall.Leperditia faba Hall, 28th Rep. New York State Mus., doc. ed., 1875, pi. 32, figs.1-3; mus. ed., p. 186, pi. 32, figs. 1-3; 11th Ann. Rep. Indiana Dep. GeoLNat. Hist., 1882, p. 331, pi. 34, figs. 1-3.Niagaran (Waldron): Waldron, Indiana.Leperditia fabulites (Conrad).Cytherina sp. Hall, Pal. New York, 1, 1847, p. 44, pi. 10, fig. 12.Cytherina fabulites Conrad, Proc. Acad. Nat. Sci. Philadelphia, 1, 1843, p. 332.Leperditia fabulites Jones, Ann. Mag. Nat. Hist., 2d ser., 17, 1856, p. 89; ibid.,3d ser., 1, 1858, p. 341 ; ibid., 5th ser., 8, 1881, p. 342, pi. 20, fig. 4; ibid., 5thser., 14, 1884, p. 342.?Chamberlin, Geol. Wisconsin, 1, 1883, p. 160, fig.? 702 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Leperditia fabulltes?Contiuued.Dwight, Trans. Vasaar Bros. Inst., 5, 1890, p. 76.?Ulrich, Jour. CincinnatiSoc. Nat. Hist., 13, 1891, p. 173, pi. 11, figs, la, d, 2.?Jones, Geol. Surv.Canada, Cont. Micro-Pal., pt. 3, 1891, p. 98, 99.?Ulrich, Geol. Minnesota, 3,pt. 2, 1894, p. 634, pi. 43, figs. 10-14.?Ruedemann, Bull. New York StateMus., 49, 1902, p. 70, pi. 5, figs. 19, 20.?Weller, Geol. Surv. New Jersey, Pal.3, 1903, p. 208, pi. 13, figs. 11, 12.?Ulrich and Bassler, Proc. U. S. Nat. Mus.,35, 1908, p. 282, fig. 1.?Bassler, Bull. Virginia Geol. Surv-., 2a, 1909, pi. 3,figs. 3-7.?Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 340, fig. 1653.Leperditia canadensis var. josephiana Jones, Ann. Mag. Nat. Hist., 3d ser.,1, 1858, p. 341; Geol. Surv. Canada, dec. 3, 1858, p. 94, pi. 11, fig. 16.Leperditia fabulites josephiana Jones, Ann. Mag. Nat. Hist., 5th ser., 1881, p. 344,pi. 19, fig. 7; pi. 20, figs. 7, 8.Leperditia josephiana Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884, p. 341; Cont.Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 97 (loc. occ.).?Dwight, Trans.Vassar Bros. Inst., 5, 1890, p, 76 (loc. occ).Black River: Mineral Point, etc., Wisconsin; Minnesota; New York; Canada; etc.Stones River: Tennessee, etc.Plesiolypes.?C&t. Nos. 41263, 41267, U.S.N.M. (Ubich).Leperditia fabulites var. anticostiana Jones. See Leperditia anticostiana.Leperditxa fabulites var. josephiana Jones. See Leperditia fabulitea.LEPEKDrriA fabulites var. louckiana Jones. See Leperditia canadensis var.louckiana.Leperditia fabulites var. pauquettiana Jones. See Leperditia canadensis var.pauquettiana.Leperditia fimbbiata Ulrich. See Aparchites fimbriatue.Leperditia fontlcola Hall.Leperditia fonticola Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 335,pi. 21 (12), figs. 1-3; rev. ed., 1870, p. 428, pi. 21, figs. 1-3.Niagaran (Byron): Fond du Lac, Wisconsin.Leperditia frontalis Jones.Leperditia frontalis Jonee, Quart. Jour. Geol. Soc. London, 46, 1890, p. 547, pi.21, figs. 8a, 8b.Anticostian (Jupiter River): Near The Jumpers, Anticoati.Leperditia germana Ulrich. See Leperditella germana.Leperditia glbbera Jones.Leperditia gibbera Jones, Ann. Mag. Nat. Hist., 2d ser., 17, 1856, p. 90, pi. 7,figs. 8-10.Niagaran: Beechy Island, Lancaster Sound, Arctic America.Leperditia gibbera var. scalaris Jones. See Leperditia scalarls.Leperditia g^igantea Weller.Leperditia gigantea Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 260, pi. 23,fig. 14.?Ulrich and Bassler, Marj'land Geol. Surv., Low. Dev., 1913, p. 514,pi. 97, fig. 10.Helderbei^n: Two miles south of Tristates, New York (Rondout); Tonoloway,Maryland (Keyser).LEPERDrriA (Isochilina) gracilis Jones. See Isochilina gracilis. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 703Leperditia granilabiata Ulrich. See Aparchites graailabiatua.Leperditia hislngerl Schmidt.Cytherina balthica (part) Hislnger, Leth. Suecica, 1837, p. 10, pi. 30, fig. 1.Cythere baltica Roemer, Bronu's Leth. Geogu., 2, 1854, p. 528 (part), pi. 9,fig. 8a-c.Leperditia balthica (part) Jones, Ann. Mag. Nat. Hist., 2d eer., 17,1856, p. 85,pi. 6, figs. 3a-e; ibid., 5th ser., 8, 1881, p. 333, pi. 19, figs. 10, 11.Leperditia balthica var. b. Kolmodin, Bidrag till Kannedomen om SverigesSilurika Ostracoder, 1869, p. 14, figs. 4, 5.Leperditia hisingeri Schmidt, Mem. Acad. Imp. Sci. St. Petersburg, 7th eer., 21,1873, p. 16, fig. 23; ibid., 31, 1883, p. 14, pi. 5, figs. 5-7.?Jones, Geol. Surv.Canada, Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 82, pi. 13, figs.1, 9.?Krause, Zeits. d. d. geol. Gesell., 43, 1891, p. 489, pi. 29, fig. 4.Leperditia schmidti Kolmodin, Ofvers. Vet.-Akad. Forh., 36, 1880, p. 133.Silurian: Europe; Long Point, Lake Winnepegosis, Grand Rapids, SaskatchewanRiver, and Beechy Island, Lancaster Sound, Canada.Leperditia hisingeri egena Jones.Leperditia Hisingeri var. egena Jones, Geol. Surv. Canada, Contr. Micro.-Pal, pt.3, 1891, p. 82, pi. 12, fig. 8.Niagaran: Grand Rapids, Saskatchewan River, Canada.Leperditia hisingeri fabulina Jones.Leperditia Hisingeri var. fabuUna Jones, Geol. Surv. Canada, Cont. Micro-Pal.,pt. 3, 1891, p. 82, pi. 10, figs. 5, 7; pi. 12, fig. 15; pi. 13, figs. 2, 3, 5, 6.Niagaran: Long Point, Lake Winnipegosis, and foot of Grand Rapids, Saskatche-wan River, Canada.Leperditia hisingeri gibbera Jones.Leperditia Hisingeri var. gibbera Jones, Geol. Surv. Canada, Cont. Micro-Pal.,pt. 3, 1891, p. 82, pi. 13, fig. 4.Niagaran: Long Point, Lake Winnipegosis, Canada.Leperditia illinoisensis Savage.Leperditia illinoisensis Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 123, pi. 7,fig. 27.Upper Medinan (Channahon): Will County, Illinois.Leperditia inplata Ulrich. See Leperditella inflata.Leperditia Jonesi Hall.Leperditia jonesi Hall, Pal. New York, 3, 1859, p. 372; 12th Rep. New York StateCab. Nat. Hist., 1859, p. 80.?Jones, Ann. Mag. Nat. Hist., 5th ser., 14, 1884,p. 342.?Schuchert, Amer. Geol., 31, 1903, p. 169.Cytherina alta? Conrad, Hall, Pal. New York, 2, 1852, p. 338, pi. 78, figs. 2a-d.Cayugan (Cobleskill): Schoharie, New York.Leperdftia Josephiana Jones. See Leperditia fabulites.Leperditia limatula Raymond.Leperditia Limatula Raymond, Amer. Jour. Sci., 4th ser., 20, 1905, p. 380; Ann.Carnegie Mus., 7, 1911, p. 253, fig. 25.Chazyan: "\'alcour Island, Valcour and Chazy, New York (Crown Point); EastTennessee (Lenoir). 704 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Leperditia llnncyl Ulrich.Leperditia linneyi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 174, pi. 11,figs. 3a-3e.Trenton (Perryville): Harrodsburg, Frankfort, etc., Kentucky.Cotypes.?Ca.t. No. 41272, U.S.N.M.Leperditia i.ouckiana Jones. See Leperditia canadensia louckiana.Leperditia .macra Miller. See Leperditella macra.Leperditia marglnata Schmidt.Leperditia marginata Schmidt, Mem. Imp. Acad. Sci. St. Petersburg, 7th ser.,21, 1873, p. 19, pi., fig. 29; ibid., 31, 1883, p. 18, pi. 1, figs. 13-19.?Jones,Cont. Micro-Pal., Geol. Surv. Canada, pt. 3, 1891, p. 86, pi. 10, figs. 6a-c.Silurian: Russia; east side of Lake Winnepegosis, Canada.Leperditia marginata Jones. See leochilina grandis and I. grandi.n latimarginata.Leperditia millepunctata Ulrich. See Aparachites millepuuctata.Leperditia (Isochilina) minutissima Hall. See Aparchites minutissimus.Leperditia morgani Safford.Leperditia Morgani Safford, Geol. Tennessee, 18G9, p. 290 (nom. nud.)Trenton: Nashville, Tennessee.Leperditia mundula Ulrich. See Leperditella mundula.Leperditia nana (Jones).Leperditia canadensis Jones (part), Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 244;Contr. to Canadian Micro-Pal., 1891, p. 97.Leperditia canadensis var. nana Jones, Geol. Sur\\ Canada, dec. 3, 1858, p. 92,pi. 2, figs. 6, 7, 9, 10; Ann. Mag. Nat. Hist., 5th ser., 8, p. 343.Leperditia nana Raymond, Ann. Carnegie Mus., 7, 1911, p. 251.Canadian (Beekmantown): Grenville, Quebec.?Chazyan: Valcour Island, Crown Point, etc.. New York.Leperditia? obscura Jones. Sec Leperditella obsciu-a.Leperditia oliioensis Dossier (new name).Leperditia alta Whitfield (not Conrad), Ann. New York Acad. Sci., 5, 1891, p.517, pi. 5, fig. 27; Geol. Sun'. Ohio, Pal., 7, 1893, pp. 417^18, pi. 1, fig. 27.?Meek, Geol. Sun'. Ohio, Pal., 1, 1873, p. 187, pi. 17, figs. 2a, b.Leperditia altoides Grabau (not Wcller), Michigan Geol. Sun'., Geol. Ser., 1, 1909,p. 205, pi. 30, fig. 27.Lower Monroan (Greenfield): Greenfield and Ballville, Ohio.LEPERDrriA (Isochilina) Ottawa Jones. See Isocliilina Ottawa.Leperditia ovata Junes.Leperditia ovata Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 252, pi. 10, tig.14; Geol. Pennsylvania, 2, pt. 2, 1858, p. 834, fig. 697.Trenton: Potter's Fort, Penns \'alley, Pennsylvania.Leperditia pan'ula Hall. Not recognized.Leperditia p.'tnula Hall, Pal. New York, 3, 1859, p. 376.Tentaculite limestone: Herkimer County, New York. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 705Leperditia pennsylvanica Jones.Leperditia Pennsylvanica Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858, p. 251,pi. 10, figs. 12, 13.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 834, fig. 699.Clinton: Near Bane Forge, Pennsylvania-.Leperditia persimilis Miller. See Leperditella persimilis.Leperditia phaseolus (Hisinger).Cytherina phaseolus Hisinger, Leth. Sues., 1837, p. 9, pi. 1, fig. 1.Leperditia phaseolus Jones, Contr. Canadian Micro-Pal., 3, 1891, p. 85, pi. 13,figs, 7, 8.Silurian: Evirope; Saskatchewan River, at Roche Rouge, Canada.Leperditia phaseolus guclphica Jones.Leperditia phaseolus var. guelpliica Jones, Cont. Micro-Pal., Geol. Surv. Canada,pt. 3, 1891, p. 86, fig. 5.?AMiiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 2,1895, p. 106 (loc. occ).Niagaran (Guelph): Durham, Ontario.Leperditia radiata Ulrich. See Elpe radiata.Leperditia resplendens Ruedemann.Leperditia resplendens Ruedemann, Bull. New York State iMus., 49, 1901, p. 71,pi. 5, figs. 21-27.Mohawkian (Rysedorph): Rysedorph Hill, Ilensselaer County, New York.Leperditia scalaris (Jones).Leperditia gibbera var. scalaris Jones, Ann. Mag. Nat. Hist., 3d ser., 1, 1858,p. 250, pi. 10, figs. 10, 11.?Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 834,fig. 698.Leperditia scalaris Grabau, Bull. Geol. Soc. Amer., 11, 1900, p. 371, pi. 22, figs.6a-d; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 219, fig. 150; Bull. New YorkState Mus., 45, 1901, p. 219, fig. 150; ibid.. Bull. 92, 1906, p. Ill; MichiganGeol. Sur^^, Geol., 1st ser., 1909, p. 202, pi. 32, fig. 6a-d.?Grabau and Shimer,N. A. Index Fossils, 2, 1910, p. 340, fig. 1655.Cayugan: Williams\alle, Buffalo, Akron, etc., New York; Ontario (Akron); Scho-harie and High Fails, New York (Cobleskill).Leperditia Schmidti Kolmodin. See Leperditia hisingeri.Leperditia selwyni Jones.Leperditia selwynii Jones, Geol. Surv. Canada, Cont. ^licro-Pal., pt. 3, 1891, p.89, pi. 12, figs. 1-5.Anticostian (Jupiter Riven ; Jupiter River, Anticosti.Leperditia sinuata Hall.Leperditia sinuata Hall, Canadian Nat. Geol., 5, 1860, p. 158.?Dawson, AcadianGeol., 2d ed., 1868, p. 609.?Jones, Quart. Jour. Geol. Soc. London, 46, 1890,p. 24, pi. 1, figs. 12a-c.Silurian: Arisaig, "Nova Scotia.Leperditia subcylindrica Ulrich.Leperditia subcylindrica Ulrich, Cont. Micro-Pal., Geol. Surv. Canada, pt. 2,1889, p. 49, pi. 9, figs. 4-4b.?^Vlliteave8, Geol. Sur\'. Canada, Pal. Foss., 3,pt. 2, 1895, p. 125.Richmond (Stony Mountain): Stony Mountain, Manitoba.8424.3??Bull. 92?15 io 706 BULLETIX 02. UXITKD STATES NATIONAL MUSEUM.Lepcrdltia siibluivls (Shumard).Cythere subltevis Shumard, 1st and 2d Ann. ]{f>p. Gool. Surv. Missouri, 2, 1855,p. 195, pi. 8. fig. 15.Leperdltia sublan-is Keyes, Missouri'Geol. Surv., 4, 1894, p. 239.St. Peter (.ToailiinO: St. Louis, Ste. Genevieve, and Ralls Counties, Missouri.Leperditia sulcata Fb-ich. See Leperditella sulcata.Leperdltia symmetrica Holtedahl.Loponiitia .'^\^nmetri(?a Holtedahl, 2d Arct. Exp., 1898-1902, No. 32, 1011. p. 37,pi. 8, fig. 15.Helderbergian (Lower beds): Southwestern pjUesmereland, Arctic America.Leperditia tumida Llrii-h. See Leperditella suh^ata.Leperdita tumidula Ulrich.Leperditia tumidula ITrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 175,pi. 11, figs. 4a-c.Trenton (Perrj'Adlle): Danville, Kentucky.Ilolotype.?Coi. No. 41284, U.S.N.M.Leperditia turgid a Billings.Leperditia turgida Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 299.Canadian (Quebec?F, 11): Port aux Choix and Cape Norman, Newfoundland.Leperditia unicornis Lirich. See Primitiella iinicorni.s.Leperditia ventrali-s Billings.Leperditia Aontralis Billings, Geol. Surv. Canada, Pal. Foss., 1, 18(55, p. 300.Cliazyan fQuebcc?N): Bonne Bay, Newfoundland.Leperditia whiteavesi Jones.Leperditia \\lutoave3i Jones, Geol. Surv. Canada, Cont. Miiro-Pal., pt. 3, 1891,p. 87, fig. G; pi. 12, figs. 11-14.Niagaran: Chemahawin and Old Fort Island, Cedar Lake, Saskatchewan Biver,Canada.LEPIDOCOLEUS Fabor. Genotype: Plumulites jamesi Hall and ^\^litfield.Lepidocoleus Faber, Jour. Cincinnati Soc. Nat. Hist., 9, 1886, p. 15.?Miller, N. A.Geol. Pal., 1889, p. 553; ibid., 1st App., 1892, p. 709.?Clarke, Amer. Geol.,17, 189G, pp. 137, 139; Zittel-Eastman Textb. Pal., 1900, p. G49; ibid., 2d ed.,1913, p. 743.Lepldocoleu.s jnniesi (Hall and Whitfield).Plumulitcs Jainc.Hi Hall and \\1iitficld. Gool. SurA-. Ohio, Pal., 2, 1875, p. 106,pi. 4, figs. 1-3.?Miller, Cincinnati Quart. Jour. Sarilis.Leptoccelia intermedia Hall. See Atrj-jiina intermedia.LEPTODESMA Hall. Genot>-pe: L. potens Hall.Leplodesma Hall, Pal., New York, 5. pt. 1. Lam. (adv. copy), 1883, p. 4; ibid., 1,1884, pp. 13, 175; 35th Rep. New York State Mus. Nat. Hist., 1884, pp. 347,40Cc.?Miller, N. A. Geol. Pal., 1889, p. 484.?Jackson, Amer. Nat., 24, 1890,p. 1141; Mem. Boston Soc. Nat. Hist., 4. 1890, p. 381.-Clarke. Amer. Geol., 13,1894, pp. 286-289, figs.-Hind, Mon. Britii^h Carb. Lam., 2, Pal. Soc, 1901,p. 10.Leptodesnia rhoinboidea (Hall).Avicnla rhomboidoa Hall. Pal. New York, 2, 1852. p. 84, pi. 27, fig^?. 2a. b, c, d.Leptodesnia rhomboideum Wlutfield and Hovey, Bull. Amer. Mus. Nat. Hist.,11, 1899. pi. 2, p. 158 (gen. ref.).Clinton: New Hartford and Sodus, New York; .Vrisaig, Nova Scotia. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 715LEPTODOMUS McCoy. Genotype: L. fragilis McCoy.Leptodomiis McCoy, Sjai. Char. Carb. Foss. Ireland, 1844, p. 66; BritLsh Pal.Rocks imd Foss., 1854, p. 277.?Pictet, Traite de Pal., 2d ed., 3, 1855, p. SSL-Billings, Proc. Portland Soc. Nat. Hist., 1, 1863, p. 117.?"Winchell andMarcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 108.?Zittel, Handb. Pal.,2, Munich, 1881, p. 129.?Miller, N. A. Geol. Pal., 1889, p. 485.?Koken, DieLeitfossilien, Leipzig, 1896, p. 526.Leptodomiis (Sangulnolites) aratus Hall.Leptodomiis (Sanguinolites) aratus Hall, Canadian Nat. Geol., 5, 1860, p. 152. ? Dawson, Acadian Geol., 2d ed., 1868, p. 603.SUurian: Arisaig, Nova Scotia.Leptodomus (Amphiccelia) leidyi AMiitfield. See Ampliico'lia leidyi.Leptodomus xeglectus ^^^litfield. See Amphicoelia neglecta.Leptodcmus undulatus "WTiitfield. See Ambonyclila iindulata.LEPTOGRAPTUS Lapworth. Genotype: Graptolithus flaccidus Hall.Leptograptus Lapworth, Geol. Mag., 10, 1873, p. 558.?Zittel, Handb. Pal., 1,Munich, 1879, p. 298.?Tullberg, Sveriges Geol. Unders., Ser. C, No. 55,1883, pp. 12.* 14.?Koken, Die Leitfossilien, Leipzig, 1896, p. 328.?^^Viman,Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, 1896, p. 266.?Walther, Zeits. geol.Gesell., 49, 1897, p. 251.?Roemer and Freeh, Leth. geog., 1, Theil, Leth.Pal., 1, 3 Lief., 1897, p. 591; Zittel-Eastman Textb. Pal., 1, 1900, p. 118.?Elles and Wood, Mon. British Grapt., Pal. Soc, 1903, p. 104.?Ruedemann,Mem. New York State Mus., 11, pt. 2, 1908, p. 260; Zittel-Eastman Textb.Pal., 2d ed., 1913, p. 130.Leptograptu.s annectans (Walcott).Graptolithus annectans Walcott, Trans. Albany Inst., 10, 1883 (adv. sheets 1879),pp. 20, 35, pi. 1, figs. 2, 2a.Leptograptus annectans Lapworth, Trans. Roy. Soc. Canada, 4, 1886, 183.?Ami,Can. Rec. Sci., 9, 1893, 180.?Ruedemann, Mem. New York State Mus., 11,pt. 2, 1908, pp. 264-266, pi. 14, fig. 5; figs. 180-183.Graptolithus tenuis? Ulrich, Cat. Foss. Cincinnati group, 1880.Utica: Holland Patent, New York; Cincinnati, Oliio, and vicinity.Plesiotype.?C&t. No. 54274, U.S.N.M.Leptograptus flaccidus (Hall).Graptolithus flaccidus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 143, pi. 2, figs.17-19.Graptolithus (Monoprion) flaccidus Hall, 20th Rep. New York State Cab. Hiat.,1868, pi. 3, figs. 10, 11; rev. ed., 1870, pi. 3, figs. 10, 11; p. 223.Leptograptus flaccidus Gurley, Jour. Geol., 4, 1896, p. 99 (gen. ref.).?Elles andWood, Mon. British Grapt., Pal. Soc, 1903, p. 106, figs. 62a-g; pi. 14, figs. la-g.Trenton (Collingwood): Lake St. John, east from Blue Point, Quebec.Leptograptus flaccidus spinifer Elles and Wood. ?Leptograptus flaccidus var. spinifer Elles and Wood, Mon. British Grapt., pt. 3,1903, Pal. Soc, 1903, p. 108, pi. 14, figs. 2a-c.Leptograptus flaccidiLs var. spinifer mut. trentonensis Ruedemann, Mem. NewYork State Mus., 11, pt. 2, 1908, pp. 262, 263, pi. 14, figs. 8, 9; text figs.176-178.Ordovician: England (Hartfell); Glenmont and Mount Moreno, New York (Nor-manskill). 716 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Leptograptus flaccidus si'inifer mut. trentonensis Ruedemann. See Lepto-graptu3 flaccidua spinifor.Leptofjrapliis flaocldns Ircnfonensls Ruoilomann.L<'ptograptu3 flaccitiu.s mut. treiitoueiinis Rucilemanu, Mem. New York StateMus., 11, pt. 2, ]908, p. 261, pi. 14, fig. 7; figs. 172-175.rhazyan (Normanskill): Glenmoiit and Mount Moreno, New York.Leptograptus macrotheca Gurley.Leptograptus? macrothec-a Gurley, Jour. Geol., 4, 1896, p. G9.Canadian (Levis): Point Levis, Quebec.Leptooraptus subtenuis Walcott. See Didyniograptus subtenuis.Leptograptus tenuis Lapworth. See DidjTnograptus subtenuis.LEPTOPLASTUS Angelin. Genotj-pe: L. etenotus Angelin.Loptoplastus Angelin, Pal. Scandinavica, 3d ed., Holmiae, 1878, p.4G.?Brogger,Die sil. Etagen 2-3, Kristiania, 1882, p. 113.?Matthew, Trans. Roy. Soc.Canada, 9, sec. 4, 1892, p. 53.?Koken, Die Leitfossilien, Leipzig, 1896, p. 20,fig. 11, fig. 2.- Lindstrom, Kongl. Sveii. Vet.-Akad. Uandl., 34, No. 8, 1901,p. 22.Leptoplastus (Sph.erophthalmus).alatu8 Brogger. See Sphaerophthalmus alatua.Leptoplastus (Ctenopyoe) flagellifer Linnarsson. See Ctenopyge flagellifer.Leptoplastus latus Matthew.Leptoplastus latus Matthew, Canadian Rec. Sci., 4, 1891, p. 462, figs. 1-3; Trans.Roy. Soc. Canada, 9, sec. 4, 1892, p. 54, pi. 13, figs. lOa-c.Canadian (Bretonian?Div. C3b): St. John, New Brunswick.Leptoplastus (Ctenopyge?) lobata BrSgger. Se? Ctenopyge? lobata.Leptoplastus (Ctenopyge) spectabilis Brogger. See Ctenopyge spectabilis.Leptoplastus spinoer Matthew. See Acantholenus spiniger.Lejitoplastus spinosus ^^atthc'w.Leptoplastus spinosus Matthew, Trans. Roy. Soc. Canada, 9, sec. 4, 1894, p. 106,pi. 17, figs. 4a-e.Canadian (Bretonian?Div. C3b): St. John, New Brunswick.LEPTOPOTERION Ulrich. Genotype: L. mammiferum l^lrich.Leptopotorion Ulrich, Amer. Geol., 3, 1SS9, pp. 235, 239.? Miller, N. A. Geol.Pal., 1889, p. 161.? James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1,1891, p. 54.? Rauff, Abh. d'math.-phys. Classe bayer Akad. Wiss., 17, 1892,p. 691.Leptopotorion inaininiferum Ulrich . Leptoi)otcrion maniiniUMum L'lrich, Amer. Geol. 3, 1889, p. 239.? J. F. James,Jour. Cincinnati Soc. Nat. Hist.. 14. 1891, p. 54.Chirospongia faberi Miller, N. A. Geol. Pal.. 1SS9, p. 156, fii:. 9i).-J. F. James,Jour. Cincinnati Soc. Nat. Hist., 14, ]>t. 1, 1891, p. 65.Maysville (Corry^^lle): Cincinnati, Ohio.Leptostropuia Hall arid Clarke. See Stropheodonta subgenus Lejitostrophia. BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 717LEPTOTRTPA Ulrich. Genotype: L. minima Ulrich.Leptotryim UWch, Jour. Cincinuati Soc. Nat. Hist., 6, 1883, p. 158.? Miller, X. A.Geol. Pal., 1889, p. 311.?Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 377, 455;Geol. Minnesota, 3, 1893, p. 316.?Simpson, 14th Ann. Rep. State Geol. NewYork for 1894, 1897, p. 580.?Nickles and Bassler, Bull. U. S. Geol. Surv.,173, 1900, p. 31.?Ulrich and Bassler, Smiths. Misc. Coll., 47, 1904, pp. 24,28.?Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 749. ? Bassler, Bull . U. S. Nat. Mus., 77, 1911, p. 207.Leptoteypa acervulosa Ulrich. See Cyphotrypa acervulosa.Leptotrypa calceola (Miller and Dyer).Monticiilipora calceola Miller and Dyer, Jour. Cincinnati Soc. Nat. Hist., 1, 1878,p. 26, pi. 1, figs. 11, 11a.?James and James, ibid., 11, 1888, p. 27.?J. F. James.ibid., 18, 1895, p. 87.Monticulipora (Monptrypa) calceola Nicholson, Genus MonticuHpora, 1881, p.185, pi. 1, figs. 3-3e.Leptotrj'pa calceola Ulrich, Jour. Cincinnati Soc. Nat. Hist., G, 1883, p. 159.Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 853, pi. 20,figs. 1-lc.Maysville (Corryville) : Cincinnati, Ohio, and Adcinity.Leptotrypa clavacoidea (James).Chaetetes clavacoideus James, Cat. Low. Sil. Foss., 1871, p. 1. (nom. nud.); Cat.Foss. Cincinnati Group, 1875, p. 1.Monticulipora clavacoidea James, Jom-. Cincinnati Soc. Nat. Hist., 6, 1883, p.236.?James and James, ibid., 1888, 11, p. 25.?J. F. James, ibid., 18, 1895,p. 84.Monticulipora (Monotrypa) clavacoidea Nicholson, Genus Monticulipora, 1881,p. 182, fig. 37.Leptotr^-pa clavacoidea Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 159.Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 42.?Cumings, 32d Ann. Rep.Dep. Geol. Nat. Res. Indiana, 1908, p. 854, pi. 20, figs. 3, 3c.Maysville (Corryville): Cincinnati, Ohio, and vicinity.Leptotrypa claviformis Ulrich. See Stigmatella claviformis.Leptotrypa clavls Ulrich. See Stigmatella clavis.Leptotrypa? cortex Ulrich.Leptotr>T>a cortex Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 162.Eden (Economy): Covington, Kentucky.Holotype.?Cat. No. 43677, U. S.N.M.Leptotrypa discoidea Ulrich. See Amplexopora? discoidea.Leptotrypa? dychei Nickles land Bassler. See Stigmatella dychei.Leptotrypa filiosa Ulrich. See Amplexopora filiasa.Leptotrypa hexagonalls Ulrich.Leptotr}T)a hexagonalis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 455, i)l. 36, figs.6,6a; Geol. Minnesota, 3, 1893, p. 317.?Bassler, Bull. U. S. Nat. Mus., 77,1911, pp. 208-210, figs. 112-114.Black River (Platteville): ilineral Point, Janesvillc, and Beloit, Wisconsin;Calhoun County, Illinois; Minneapolis, Minnesota.Middle Ordov-ician (Kuckers): Near Jewe, Esthonia, Russia.Eolotype and plesiotypcs.?Cat. Nos. 44057, 57293, U. S.N.M. 718 BULLETIN 92, UNITED STATES NATIONAL MUSEUM.Leptotrypa informis UIrich. See Cyphotrypa informis.Leptotrypa? irregularis Nickles and Baesler. See Stigmatella irregularia.Leptotrypa maculata Ulrich. See Spatiopora maculata.Leptotrypa minima Ulrich.Leptotrji)a minima Ulrich, Jour. Cincinnati Soc. Nat. Hist., 0, 1883, p. 159, pi.6, figs. 2-21).Maysville (Bellevue): Ilamilton, Ohio.Cotypis.?Cixt. No. 43G7G, U.S.X.M.Leptotrypa offula Ulrich. See Paleschara? offula.Leptotrypa ornata Ulrich.Leptotrypa ornata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. IGO, pi.6, figs. 4, 4a.Maysville (Corry-vdlle) : Cincinnati, Ohio, and viciidty.Cohjpes.?Cat. No. 43G78, U.S.N.M.Leptotrypa semipilaris LHrich. See Cyphotrypa semipilaris.Leptotrypa? sphivrion (Hall).Paleschara? epha^rion Hall, 28th Ann. Rep. New York State Mua., doc. ed., 1876,pi. 8, figs. 14, 15.Paleschara? (Chaetetes?) sphterion Hall, ibid., mus. ed., 1879, p. 121, pi. 8,figs. 14, 15; 11th Ann. Hep. Indiana Geol. Nat. Hist., 1882, p. 247, pi. 7, figs.14, 15.?Lesley, Geol. Surv. Pennsylvama, Rep. P4, 1889, p. 592, fig.Leptotrji^a sphterion Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p.299'Niagaran (Waldron): Waldron, Indiana.Leptotrypa stidhami Ulrich. See Cyphotrypa stidhami.Lesueurilla Koken. See Maclurites Lesueur.LEVISIA Walcott. Genotype: Agrauloa agenor Walcott.Levisia Walcott, Smiths. Misc. Coll., 57, no. 4, 1911, p. 8G; Cambrian P'aunas ofChina, Carnegie Institution, 3, 1913, p. 177.Levisia nasuta Walcott.Levisia nasuta Walcott, Smiths. Misc. Coll., 57, 1911, p. 87, pi. 17, fig. 5, and figs.7, 7a; Cambrian Faunas of China, Carnegie Institution, 1913, p. 178.Ozarkian? (Levis-erratic): Point Levis, Quebec.Levisia rieiiardsoni Walcott.Levi-sia richardsoni Walcott, Smiths. Misc. Coll., 57, 1911, p. 8G, pi. 17, figs. 4, 4a;Cambrian Faunas of China, Carnegie Institutioij, 1913, p. 178.Ozarkian ? (Levis-erratic): Point Levis, Quebec.o SMITHSONIAN INSTITUTION LIBRARIES 3 9088 01421 1460 j::t^