^epctvivnevxi of fhc inferior U. S. NATIONAL MUSEUM. BULLETIN OF THE UNITED STATES NATIONAL MUSEUM. PUBLISHED UNDER THE DIRECTION OF THE SMITHSONIAN INSTITUTION, WASHINGTON: GOVERNMENT PRINTING OFFICE. 1875. CHECK-LIST OF North American Batrachia and Reptilia; SYSTEMATIC LIST OF THE HIGHER GROUPS, ESSAY ON GEOGRAPHICAL DISTRIBUTION. BASED ON THE SPECIMENS CONTAINED m THE U. S. NATIONAL MUSEUM. By EDWARD D. COPE. WASHIKGTO:sr: GOVERNMENT PRINTING OFFICE. 1875, ADVEETISEMENT. This work is the first of a series of papers intended to illustrate the collections of Natural History and Ethnology belonging to the United States and constituting the lliJational Museum, of which the Smithsonian Institution was placed in charge by the act of Congress of August 10, 1846. It has been prepared at the request of the Institution, and printed by authority of the honorable Secretary of the Interior. JOSEPH HENET, Secretary Smithsonian Institution, Smithsonian Institution, Washington, November^ 1875. TABLE OF CONTENTS. Page. Introductory remarks 3 Part I. Arrangement of the families and higher divisions of Batrachia and Reptilia. [Adopted provisionally by the Smithsonian Institution.].. 7 Class Batrachia 7 Order Anura 7 Stegocephali 10 Gymnophidia 11 Urodela 11 Proteida 12 Trachystomata 12 Class Eeptilia 12 Order Ornithosauria - 12 Dinosauria 13 Crocodilia 14 Sauropterygia 14 Anomodontia l'^> Ichthyopterygia 15 Ehynchocephalia 15 Testudinata 16 Lacertilia 17 Pythonomorpha 20 Ophidia 21 Part II. Check-list of the species of Batrachia and Eeptilia of the Nearctic or North American realm 24 Class Batrachia 24 Order Trachystomata 24 Proteida 24 Caducibranchiata 25 Annra 29 Bnfoniform ia 29 Firmisternia 30 Arcifera 30 Eaniformia 32 Class Eeptila 33 Order Ophidia 33 Solenoglypha 33 Proteroglypha 34 Asinea 34 Scolecophidia 44 II TABLE OF CONTENTS. Pa^e. Part II. Check-list of the species of Batrachia and Eeptilia, &c.—Continued : Class Eeptila—Continued : Order Lacertilia 44 Oplieosauri 44 Pleurodonta 44 Typhlophthalmi 44 Leptoglossa 44 Diploglossa 46 Iguania 47 Nyctisaura 50 Testudinata 50 Atliecse 50 Cryptodira , 51 Crocodilia 54 Part III. On geographical distribution of the Vertehrata of the Eegnum Nearc- ticum, with especial reference to the Batrachia andEeptilia 55 I.—The faunal regions of the earth 55 II.—Number of species 58 III.—Eelations to other realms 61 IV.—The regions 67 Austroriparian 68 Eastern 70 Central 71 Pacific 72 Sonoran 73 Lower Californian 74 V.—-The Austroriparian region 76 VI.—The Eastern region 82 VIL—The Central region 88 VIIL—The Pacific region 89 IX.—The Sonoran region 90 X.—The Lower Californian region 92 XI.—Eelation of distribution to physical causes 93 Pari iV. Bibliography 97 A.—Works on the classification of Batrachia and Eeptilia 97 B.—Works treating of the geographical distribution of North American Batrachia and Eeptilia 100 Alphabetical index 101 INTRODUCTORY REMARKS. The present contribution to Nortli American Herpetology is a prodro- nms of a general work on that subject, undertaken some years ago at the request of the Secretary of the Smithsonian Institution. The mate- rial which has been accumulating in the museum of that Institution has offered great advantages for the investigation of the questions of anatomical structure, variations of specific characters, and geographical distribution. It is believed that these subjects are much elucidated by the study of the Batrachia and Beptilia, since these animals are especially susceptible to physical influences j since, also, they are unable, like birds, and generally not disposed, as are mammals, to make extended migra- tions, their habitats express nearly the simplest relations of life to its surroundings. In prosecuting these investigations, it has become necessary to adapt the nomenclature to the results obtained by study of many specimens as to the variation of species. It is a common observation that the better a species of animal is represented in our collections, the wider do we discover its range of variation to be, and the greater the number of supposed distinct species does it become necessary to reduce to the rank of varieties. The definition of a species being simply a number of indi- viduals, certain of whose physical peculiarities belong to them alone, and are at the same time exhibited by all of them, it is evident that, since it is impossible, in the present state of our knowledge, to predicate what those "certain peculiarities" shall be, the only test .of specific d'eli- Bition is the constancy of those characters. Hence it is that the most diverse forms of one species may differ more from each other than two recognized species. In the investigation of ISTorth American cold-blooded Vertebrata, I have observed that many species are represented by well- marked geographical varieties, which, following the example of some ornithologists, I have called subsveeies. Many of these have been here- tofore regarded as species. In illustration of these remarks, certain species of the genus Ophiholns may be selected. The most northern and the most southern forms of the genus, the 0. triangulum and 0. coccineuSj have always been regarded as distinct species; and so numerous are their differential characters, in col- oration, size, and squamation, that this view would seem to rest on a sat- isfactory foundation. I find, however, that individuals exist which rep- resent every stage of development of each character which distinguishes them, although certain typesaypearto be more abundant than the interme- diate ones. 0. triangulum is a species of larger size, with two temporal plates, a row of large dorsal spots, and other smaller ones on the sides, on a grayish ground ; with a chevron, and often other marks on the top of the head, and a band posterior to the eye. 0. coccineusis a small snake with a small loreal plate and one temporal shield ; color red, with pairs of black rings extending round the body, and no markings on the head excepting that the anterior ring of the anterior pair crosses the posterior edge of the occipital shields, forming a half collar. The transition is accom- plished thus : The lateral borders of the dorsal spots of 0. triangulum break up, and the lateral spots become attached to their anterior and posterior dark borders. The chevron of the top of the head first breaks into spots, and then its posterior portions unite with each other. The borders of the old dorsal spots continue to the abdomen, where the remaining lateral portions finally meet on the middle line, forming a black line. This breaks up and disapi)ears, leaving the annuli open; and these are then completed in many specimens. The general colors become more brilliant and the size smaller. The head is more depressed ; in immediate relation to this form, the loreal plate is reduced in size, and the two temporal shields of 0. triangulum are reduced to one. Every form of combination of these characters can be found, which represent six' species of the books (in North Auierica), viz: 0. triangulum, 0. doli- atus, 0. annulatus, 0. gentilis, O. amaurus, and 0. coccineus. The oldest name is the 0. doliatus, Linn. Another series of specimens resemble very closely those of the subspecies coccineus ; in fact, are identical with them in color. The loreal shield is, however, extinguished, and the rows of scales are i educed by one on each side. These specimens simply carry one degree further the modifications already described. Yet, on account of the constancy of these characters, I am compelled to regard these individuals not only as a distinct species, but, on account of the absence of the loreal plate, as belonging to another genus. This is the Calama- ria elapsoidea of Holbrook ; the Osceola elapsoidea of Baird and Girard. It affords an illustration of the principle, which I have elsewhere insisted on, " that adjacent species of allied genera may be more alike than remote species of identical generic characters," whicb indicates that generic char- acters originate independently of the specific* The classification of the present list is illustrated by the above remarks. I now briefly allude to the rules I have followed in adopting a nomen- clature. These rules are those in general use in the United States, as based on the revision of the rules of the British Association for the Advancement of Science by a committee of the American Association, and elaborated in more detail by W. H. Edwards,t after Thorell aud Wallace ; in other words, the law of priority is followed under the fol- lowing definitions : (1) A specific name given by an author must relate to a description or plate of the object intended. (2) A generic name of a species must be accompanied by a separate definition of the genus intended, by reference to some of its distinctive features. Note.—These two rules are properly regarded as the safeguards of nomenclature, since they ofter the only means by which the writings of authors in the sciences concerned can be intelligible. The necessity of these rules will become increasingly apparent, since, as the systematic sciences become more popular, sciolists may publish pages of names in any of their departments, with the efi'ect, should such names be author- itative, of indefinitely postponing the cultivation of the subject. A generic diagnosis is not necessarily perfect in the early stages of the classification of a science, and may be found later to embrace more than one generic type J hence, the following additional rule has been found necessary : (3) In the subdivision of a genus, names of the new genera are to be adopted in the order of priority of the definition of the divisions to which they refer; the remaining natural generic group retaining the original name, unless the latter has been already given to one of the divisions, as prescribed. (4) Prloritj^ reposes on date of publication, and not on date of read- ing of papers. Of course, consistently with the above rules, as divisions of high rank must be defined in order to be understood, names of these unaccompa- nied by definitions are not binding on the uomenclator. In regard to orthography, the same code of rules has been followed, viz, in the Latinization of all words of Greek derivation. This has been * Origin of Genera, Pliiladelphia, 1868. t The Canadian Entomologist, 1873, p. 32. 6applied especially to the conipounding of family-Dames. Thus, if the generic name is spelled according to Latin rule, the family-name derived from it must be so also; hence, I write ScapMopidae, not Scaphiopodidae; Bhinoceridae, not Ehinocerotidae. lu the check-list, the correct name of each species and subspecies is given with reference to a good description. To each is added its geo- graphical range. PA.RT I. ARRANGEMENT OF THE FAMILIES AND HIGHER DIVISIONS OF BATRACHIA AND REPTILIA. [ADOPTED PROVISIONALLY BY THE SMITHSONIAN INSTITUTION.] Class BATRACHIA. Order ANUEA. (Anura, Dumeril ; Salientia, Merrem, Gray.) Eanifoemia. (Eaniformia, Cope, Nat. Hist. Eev., y, 114, 1865.*) Eanidae =Eanidae, Cope, 1^. H. Eev., v, 114- 119, 1865.' Colostethidae = Colostethidae, Cope, P. A. 'N. S. Phila., 1866, 130.' 1 Raniformia, partim, Dam. et Bib., Erp. G6n. 2 Ranidae, Cope, Jour. Acad. Nat. Sci. Phila., n. s., vi, 189, 1867 ; Banidae, Polypedati- dae, and Cystignathidae, pars, Gthr., Cat. Bat. Salien., IS58, 4-26. 3 Colostethidae, Cope, Jour. Acad. Nat. Sci. Phila., n. s., vi, 197, 1867 ; " Calostethidae," Mivart, Proc. Zool. Soc. Loudon, 1869. Firmisteenia/ (Bufonoid Eaniformia, Cope, Jour. Acad. Nat. Sc. Phila., n. s., vi, 190, 1867.) Dendrobatidae — Dendrobatidae, Cope, 1^. H. Eev., v, 103-104, 1865.' =: Phryniscidae, Cope, J. A. IS". S. Phila., n. s., vi, 190, 1867.' := Engystomidae, Cope, J. A. N. S. Phila., n. s., vi, 190, 1867.' = Brevicipitidae, Cope, J. A. '^. S» Phila., n. s., vi, 190, 1867.' Phryniscidae Engystomidae Brevicipitidae Gasteeohmia. (Gastrechmia, Cope, J. A. N. S. Phila., n. s., vi, 198, 1867.) Hemisidae = Hemisidae, Cope, J. A. K S. Phila., n. s., vi, 198-199, 1867.' * Firmisternia. Believing the arciferous or raniform sterual structure to have about equal systematic value with the presence or absence of teeth, I have separated the toothless families with raniform sternum under the name of Firmisternia. It is not impossible that this group may turn out to be inseparable from the Gastrechmia. The toothed Aglossa must be distinguished on the same j)rinciple from Pipa, and the sub- order is accordingly named Odontaglossa. 6 Hylaplesiidae, Gthr., Cat. Bat. Salien., 1858, 124-126. ^ Brachycephalina, pars, Gthr., Cat. Bat. Salien., 1858, 42. '> Engystomidae, Cope, N. H. Eev., v, 100-101, 1865 ; Michrylidae, Brachymeridae, Eugystomatidae, Hylaedactylidao, Gthr., Cat. Bat. Salien., 1858. * Brachymeridae, Cope, pars, N. H. Eev., v, 101-102, 1865. 9 Hemisidae ; Ehinophrynidae, Cope, pars, N. H. Eev., v, 100, 1865 ; Ehinophiynidae et Phryniscidae, pars, Mivart, Proc. Zool. Soc. London, 1869, 281-288. 9BUFONIFOEMIA. (Bufoniformia, Dumeril et Bibron, partim ; Cope, partim.) Ehinoplirynidae = Kliinoplirymclae, Gthr., Cat. Bat. Sal. B. M., 127, 1858.^'^ Bufonidae r= Bufonidae, Cope, N. H. Bev., v, 102- 103, 1865." Batracliophrynidse = Batrachophrynus, Peters, Monatsb. Pr. Akad. Wiss., 1873, 411. Aglossa. Pipidae :=Pipidae, Gthr., Cat. Bat. Sal. B. M., 2-3, 1858.'^ Odoi^taglossa. Dactylethridae =: Dactylethridae, Gthr., Cat. Bat. Sal. B. M., 1-2, 1858." Aeoifeea. (Arcifera, Cope, N. H. Eev., v, 104, 1865.") Cystignathidae = Cystignathidae, Cope, 'N. H. Eev., v, 105, 1865.^' '" Ehinoplirynidae, Cope, N. H. Rev., v, 100, 1865, pars, nee Mivart ; Cope, Jour. Acad. Nat. Sci. Phila., vi, 189, 1867. " (Bafonidae) Chelydobatraohus, Gthr., Cat. Bat. Salien., part., 1858, 51, 53-54. "Pipidae, Cope, N. H. Eev., v, 98-99, 1865; Pipidae, Mivart, Proc. Zool. Soc. Lon- don, 1869, 287, 295. 13 Dactylethridae, Cope, N. H. Eev., v, 99, 1865; Dactylethridae, Mivart, Proc. Zool. Soc. London, 1869, 295. "Arcifera, Cope, Jour. Nat. Sci. Phila., vi, 67-68, 1866. 1* Cystignathidae, Eanidae partim, Cystignathidae, Uperoliidae, Bombinatoridae partim, Alytidae partim, Hylodidae, Gthr.; Eanidae partim, Polypcdatidae partim, Discoglossidae partim, Mivart, Proc. Zool. Soc. London, 1869. 10 Hemiphractidae — Hemiphractidae, Cope, J. A. N. S. Phila., n. s., vi, 69, 1866. Hylidae > Hylidae, Gthr., Oat. Bat. Salien., 96, 1858.'' Scaphiopidae = Scaphiopodidae, Cope, J. A. JST. S. Phila., n. s., vi, 69, 1866.''. Pelodytidae = Pelodytidae, Cope, J. A. IST. S. Phila., vi, 69, 1866.'^ Asterophrydidae = Asterophrydidae, Cope, J. A. N. S. Phila., n. s., vi, 79-80.'''* Discoglossidae = Discoglossidae, Cope, N^. H. Eev., v, 105-107, 1865.'^ Order STEGOCEPHALL (Stegocephah, Cope, P. A. 1^. S. Phila., 1868, 209.'°) Labyrinthodontia. Baplieiidae ^Baphetidae, Cope, MSS. Anthracosauridae = Anthracosauridae, Cope, MSS. Golosteidae Ganocephala. = Colosteidae, Cope, MSS.^ 16 Hylidae, Cope, T. A. N. S. Phila., vi, 83-85, 1866. " Scaphiopodidae partim, N. H. Eev., v, 107-108, 1865. 18 Pelodytidae. Scaphiopodidae pars. Cope, olim, Jour. Acad. Nat. Sci. Phila., vi, 69, 1866. 19 Discoglossidae, Cope, Jour. Acad. Nat. Sci. Phila., vi, 69, 1866; Discoglossidae partim, 34, Boaibinatoridae partim et Alytidae partim Gthr., Cat. Bat. Salien., 40, 57, 1858; Mivart, Proc. Zool. Soc. London, 1869, 294-295 20 Stegocephali, Cope, Trans. Am. Phil. Soc. 1870, 6-7. 21 Colosteus, Cope. Phlegethontiidae Molgopliidae Ptyoniidae Tuditanidae Peliontidae 11 MiCEOSAUEIA. = Phlegethontiidae, Cope, MSS. = Molgophidae, Cope, MSS. = Ptyoniidae, Cope, MSS.^^ r= Tuditanidae, Cope, MSS. = Peliontidae, Cope, MSS. 21a 22 24 Order GYMNOPHIDIA. (Gymnophiona, Miiller.) Caeciliidae — Caeciliidae, Gray, Cat. Bat. Grad. B. M., 57, 1850. Order UEODELA. C Seiranotidae, ^ Gray, P. Z. S. ~ ( Pleurodelidae, ) London, xxvi, 137-143,1858. = Salamandridae, Gray, P. Z. S, Lon- don, xxvi, 142-143, 1858, = Hynobiidae, Cope, J. A. N. S. Phila., n. s., vi, 107, 1866. Desmognathidae = Desmognathidae, Cope, J. A. N. S. Phila., n. s., vi, 107, 1866. Tlioriidae — Thoriidae, Cope, P. A. N. S. Phila., 1869, 111-112. 21*^ Phlegethontia, Cope. 22 Molgophis, Cope. ^^Lepterpetou, Huxl. ; Oestocepbalus, Cope; Urocordylus, HuxL ^* Pelion, Wyman. 2^ Salamandridae, Cope, Jour. Acad. Nat. Sci. Phila., vi, 107-108, 1866. 26 Hynobiidae, Cope; Molgidae, Gray, 1850. Pleurodelidae Salamandridae^^ Hynobiidae.26 12 Plethodonfcidae ^ Amblystomidae Menopomidae Amphiumidae Cocytinidae Proteidae 28 = Plethodontidae, Cope, J. A. N. S. Phila., n. s., vi, 106-107, 1866. = Amblystomidae, Cope, J. A. K S. Phila., n. s., vi, 105-106, 1866. — Protonopsidae, Gray, Cat. Bat. Grad. . B. M., 52-54, 1850. =: Amphiumidae, Cope, J. A. JS^. S. Phila., n. s., vi, 104-105, 1866. := Cocytinidae, Cope, MSS.^ Order PEOTEIDA. — Proteidae, Gray, Cat. Bat. Grad. B. M., 64-67, 1850. Order TEACHYSTOMATA. Sirenidae = Sirenidae, Gray, Cat. Bat. Grad. B. M., 67-69, 1850. Class REPTILIA. Order OBNITHOSAUEIA. (Ornithosauria, Bonaparte, Pitzinger, Seeley.''°) Dimorphodontidae — Dimorphodontidae, Cope, P. A. A. A. S. 1870, 234, 1871.'^ 27 Plethodoutidae, Cope, Jour. Acad. Nat. Sci. Phila., vi, 106, 1866, partim Gray, 1850. 28 Aaiblystomidae. Plethodontidae partim. Gray, 1850. 29 Cocytiuus, Cope, Trans. Am. Philos. Soc. Phila., 1874. 20 Ornithosauria= Pterosauria, Owen. 31 Dimorphodontae, Seeley. 13 Pterodadylidae — Pterodactylidae, Cope, P. A. A. A. S., xix, 234, 1871.'^ Order DINOSAUEIA. ' (Dinosauria, Owen, Cope, Seeley ; Pachypodes, Meyer ; Ornithoscelida, Huxley.) Symphypoba. (Symphypoda, Cope; Compsognatha, Huxley.) Compsognathidae = Compsognatliidae, Cope, P. A. A. A. 8., xix, 234, 1871'' (name only). Ornithotarsidae = Ornithotarsidae, Cope, P. A. A. A. S., 234, 1871 '^ (name only). GONIOPODA. (Goniopoda, Cope ; Harpagmosauria, Haeckel.) Megcdosauridae = Megalosauridae, Cope, P. A. A. A. S., xix, 234, 1871 (name only).'' Teratosauridae = Teratosauridae, Cope, P. A. A, A. S., xix, 234, 1871 (name only).'*' Oethopoda. (Ortliopoda, Cope ; Therosauria, Haeckel.) Scelidosauridae = Scelidosauridae, Cope, T. A. P. S., n. s., xiv, 91, 1869.'' 2^ Rhamphorhynchae et Pterodactylae, Seeley, loc. cit. 3^ Compsognathidae= Compsognathus, Wag. '* Ornithotarsidae= Ornithotarsus, Cope. ^^ Megalosauridae, Huxley. ^^ Teratosaurus, Plateosaurus, Meyer, etc. =" Scelidosauridae, Huxley, Journ. Geol. Soc. Loudon, 1870. 14 Iguanodontidae = Iguanodontidae, Cope, T. A. P. S., n. s., xiv, 91, 1869.'' Hadrosauridae r= Hadrosauridae, Cope, T. A. P. S., n. s., xiv, 91-98, 1869.'' Order CEOCODILIA. (Crocodilia et Thecodontia, partim, Owen, 1841.) Paeastjchia. Belodontidae =. Belodontidae, Cope, P. A. A. A. S., xix, 234, 1871 (name only).'" Amphicoelia. Teleosauridae = Teleosauridae, Cope, P. A. A. A. S., xix, 234, 1871 (name only). Goniopliolididae = GoniophoUs, Owen, etc. Peocoelia. Thoracosauridae = Thoracosauridae, Cope, P. A. A. A. S., xix, 235, 1871 (name only).'' Crocodilidae = Crocodilidae, Cope, P. A. A. A. S., xix, 235, 1871 (name only).'"' Order SAUEOPTEEYGIA. (Sauropterygia, Owen.) ^. Placodontidae — Placodontidae, Cope, P. A. A. A. S., xix, 235, 1871 (name only).'' 38 IguanodoDtidae, Huxley, Jonrn. Geol. Soc. London, 1870. ^^ Hadrosauridae, Huxley, Journ. Geol. Soc. London, 1870. 40 Thecodontia, Owen, pt. ; Cope, Tp. A. P. S., 1869, 32. 41 Thoracosaurus, Leidy, Cope. 42 Crocodilidae + AUigatoridae, Gray, + Gavialidae, Gray, + Holops and Thecach- ampsa, Cope, etc., Pr. A. A. A. S., xix, 235, 1871. 43piacodu8, Agass. 15 Plesiosauridae ^ Plesiosauridae, Cope, P. A. A. A. S., xix, 235, 1871 (name only)."' Elasmosauridae — Elasmosawidae, Cope, Tr. A. P. S., n. s., xiv, 1869, p. 47.'^' Order AI^OMODONTIA. (Anomodontia, Owen.) Dicynodontidae = Dicynodontidae, Cope, P. A. A. A. S., xix, 235, 1871 (name only)."'' Oudenodontidae :=. Oudenodontidae, Cope, P. A. A. A. S., xix, 235, 1871 (name only)."' Order ICHTHYOPTEEYGIA. Ichthyosauridae z=z Ichthyosauridde, Cope, P. A. A. A. S., xix, 235, 1871. Order HHYNCHOCEPHALIA. Protorosauridae = Protorosauridae, Cope, P. A. A. A. S., xix, 235, 1871 (name only)."' Sphenodontidae = Sphenodontidae, Cope, P. A. A. A. S., xix, 235, 1871."' Phynchosauridae — Bhynchosauridae, Cope, P. A. A. A. S., xix, 235, 1870 (name only).'' ^4 Nothosaurus, Pistosaurus, Plesiosaurus, Pliosaiirus, etc. <5 Elasmosaurus, Cimoliasaurus, etc. ^^ Dicynodontidae, Owen, Paleontology. ^'' Cyptodontia, Owen, Paleontology. ^'^ Protorosaurus, Meyer (elongate sacrum). ^9 Hatteriidae, Cope, Proc. Acad. Nat. Sc. Phila., 1864, 225-7. ^0 Ehyucbosaurus, Owen. 16 Order TESTUDINATA. Athecae. (Atbecae, Cope, P. A. A. A. S., xix, p. 235, 1870.) Sphargididae = Sphargididae, Gray, Ann. Philos., 1825.'^ r= Protostega, Cope, Proc. A. P. S., 1872, 413. Protostegidae Cheloniidae Propleuridae TrionycMdae Emydidae Chelydridae Cinosternidae Testudinidae Cryptodiea. r= Cheloniidae, Gray, Annals Philoso- phy, 1825.'' :=: Propleuridae, Cope, Am. Jour. Sc. and Arts, 1, 137, 1870. r= TrionycMdae, Gray, Annals of Phi- losophy, 1825.'^ — Emydidae, Agassiz, Cont. Nat. Hist. TJ. S., i, p. 351.-^^ =r Chelydridae, Agassiz, Contrib. 1^. H. U. S.,.i, 341.'^^ r= Cinosternidae, Agassiz, Cont. Nat. Hist.U. S., i, 347. =r Testudinidae, Cope, P. A. N. S. Phil, 1868, p. 282.^' ^1 Spliargicliflae, Bell, Fitzinger, Agassiz. 62 Cheloniidae, Gray, Aun. Phil., 1825 ; Agass., Cope, P. A. A. A. S., xix, 235, 1871. 6' Trionychidae, Bell, Wiegmann, Dum. et Bibr., Agass. ^* Emydidae—Chelydridae, Cope, P. A. A. A. S., xix, 235, 1871 (name only). e^^Chelydra, Cope, P. A. N. S. Phila., 1872. 6° Testudinidae, Gray, Agass. 17 Pleurosternidae =z Pleurosternidae, Cope, P. A. N. S. Phila., 1868, 282 (name only). Adocidae =Adocidae, Cope, P. A. P. S., 1870, 547. Pleurodiea. (Pleurodira, Dum. et Bibron ; Chelyoidae, Agass.) Podocnemididae = Podocnemididae, Cope, P. A. ]^. S. Phila., 1868, 282. Chelydidae = Chelydidae, Gray, P. Z. S. London, 1869, pp. 208-209. Hydraspididae = Hydraspididae, Cope, P. A. N. S. Phila., 1868, 282. Pelomedusidae = Pelomedusidae, Cope, P. A. 'N. S. Phila., 1865, 185; 1868, p. 119. ~ Sternothaeridae = Sternothaeridae. Cope, P. A. N. S. Phila., 1868, 119. Order LACEETILIA. (Lacertilia, Owen ; Cope, P. A. A. A. S., xix, 236, 1870.) Ehiptoglossa. (A crodonta Ehiptoglossa, Wiegmann, Fitzinger, Cope ; Chamaeleonida, Miiller.) Chamaeleontidae = Chamaeleontidae, Gray, Cat. Lizards B. M., 1845, 264 (name only).'' *fi Wiegmann, Gray, etc. 2h 18 Pachyglossa. (Pachyglossa, Cope ; Acrodonta Pachyglossa, Wagler, Eitzinger, Cope, P. A. K S. Phila., 1864, 226-227.) Agamidae =Agamidae, Gray, Cat. B. M., 1845, 230. Nyctisaura. (IS'yctisaura, Gray, Cat. Lizards B. M. ; Cope, P. A. N. S. Phila., 1864, 225.) Gecconidae =Gecconidae, Gray, Cat. Lizards B. M., 1845, 142.^' ' Pleueodonta. (Pleurodonta, Cope, P. A. IN". S. Phila., 1864, 226.) a. Iguania. — Anohdae, Cope, P. A. ^. S. Phi|a., 1864, 227, 228. — Iguanidae, Cope, P. A. K S. Phila., 1864, 227, 228.'' b. Diploglossa, = Anguidae, Cope, P. A. N. S. Phila., 1864, 228. = Gerrhonotidae, Cope, P. A. N. S. Phila., 1864, 228.^' Anolidae Iguanidae Anguidae Gerrhonotidae " Cope, Pr. A. A. A. S., xis, 236, 1871. ^^ Iguanidae pars auctorum. ^^ Zonuridae, pt., Gray. 19 XeDOsauricke r= Xenosauridae, Cope, P. A. N. S. Phila., 1866, 322. Helodermidae := Helodermidae, Gray, Cat. Lizards B. M., 1845.*^° c. Thecaglossa. (Thecaglossa, Wagler, Eitzinger, Cope.) Varanidae — Yaranidae, Cope, P. A. A A. S., xix, 237, 1870. d. Lejjtoglossa. (Leptoglossa, Wiegmann, Pitzinger, Cope.) Teidae = Teidae, Cope, P. A. A. A. S., xix, 237, 1871.*^' Lacertidae r= Lacertinidae, Gray, Cat. Lizards B. M., 26-44, 1845.^' Zonmidae = Zonuridae, Cope, P. A. A. A. S., xix, 237-241, 1871.'' Clialcidae — Chalcidae, Gray, Cat. Lizards B. M., 57-58, 1845.*^' Scincidae = Scincidae, Gray, Cat. Lizards B. M., 70-120, 1845.'' Sepsidae = Sepsidae, Gray, Cat. Lizards B. M., 121-126, 1845.'' 6" Helodermidae, Cope, Proc. Acad. Nat. Sc. Phila., 1864, 228 ; 1868, 322. " Teidae and Ecpleopodidae, Peters, Cope (Proc. Acad. Nat. Sci. Phila., 1864, 229) ; Teidae, Anadiidae, Cercosauridae, Eiamidae, Gray. «2 Lacertidae, Cope, Proc. Acad. Nat. Sci. Phila., 1864, 228; Lacertidae et Cricosauri- dae, Peters ; Xantusiidae, Baird. ^ Zonuridae, pt., Gray ; Lacertidae pt., Cope. 6^ Chalcididae, Cope, Proc. Acad. Nat. Sci. Phila., 1864, 228. S5 Scincidae, Cope, Proc. Acad. Nat. Sci. Phila., 1864, 228. 66 Sepsidae, Cope, Proc. Acad. Nat. Sci. Phila., 1864, 228. 20 e. Typhlophthalmi. (Typhlophthalmi, Cope, P. A. N. S. Phila., 1864, 228.^^) Feyliniidae =: Anelytropidae, Cope, P. A. N. S. Phila., 1864, 230.'^' Acontiidae = Acontiadae, Gray, Cat. Lizards B. M., 126-127, 1845.'' Aniellidae — Aniellidae, Cope, P. A. N. S. Phila., 1864, 230. Opheosauei. (Oplieosauri, Cope, P. A. K S. Phila., 1864, 226.'") Amphisbaenidae = Amphisbaenidae, Gray, Cat. Tort. Croc, etc. B. M., 69, 1844.'^ Trogonophidae — Trigonophidae, Gray, Catal. Tort. Croc, etc B. M., 68, 1844.'' Order PYTHONOMOBPHA. (Pythonomorpha, Cope, T. A. P. S., n. s., xiv, 175-182, 1870.'-^) 3Iosasauridae '> Mosasauridae, Cope, T. A. P. S., n. s., xiv, 182-211, 1870. fi' Typhlophthalmi, pars., Dum. et Bib., Erp. Geu. 68 Typhliaidae, Gray. 69 Acontiidae, Cope, Proc. Acad. Kat. Sci. Phila., 1864, 230. '0 Ophisauri, Merrem ; Aunulati, Wiegmanu ; Ptychopleures Glyptodermes, Dum. et Bib. ; Amphisbaenoidea, Miiller. " Amphisbaenidae, Wiegmanu. 72 Trogonophes, Wiegmann, Fitziuger. "Pythonomorpha, Cope, Proc. Bost. Nat. Hist. Soc, 1869, 251; Lacertilia Natautia, Owen, Paleontographical Soc. Cretaceous Reptiles. 21 TypMopiclae Stenostomidae Tortricidae Uropeltidae Order OPHIDIA. SCOLBCOPHIDIA. (Scolecopliidia, Dum. et Bib."^^) = Typlilopidae, Cope, P. A. A. A. S., xix, 237, 1871 (name only).'' = Stenostomidae, Cope, P. A. A. A. S., xix, 237, 1871 (name only).'' TORTEICIFA. (Tortricina, Miiller.'') — Tortricidae, Cope, P. A. K S. Phila., 1864, 230, , =z Uropeltidae, Cope, P. A. N. S. Phila., 1864, 230.'' ASINEA. (Asinea, Mliller, Cope.) a. Peropoda. (Peropoda, Miiller.) = Xenopeltidae, Cope, P. A. IST. S. Phila., 1864, 230.'' =: Pythonidae, Cope, P. A. K S. Phila., . 1864, 230.^'^ "Scolecopliidia et Catodonta, Cope, Proc. Acad. Nat. Sci. Phila., 1864, 230. ''^ Epanodontiens, Dum. et Bib. '6 Catodontieus, Dum. et Bib.; Catodonta, Cope, olim. "Tortricina, Cope, Proc. Acad. Nat. Sci. Phila., 1864, 230. ''^ Uropeltacea, Peters ; Rhinophidae, Gray. ''^ Xenopeltidae, Gthr., Reptiles British India. ^ Holodontiens, Dum. et Bib. Xenopeltidae Pythonidae 22 Boidae Lichanuridae Achrochordidae Homalopsidae Colubridae Ehabdosomidae Elapidae ^ajidae r= Boidae, Cope, P. A. 'N. S. Phila., 1864, 230.'^ =r Liclianuridae, Cope, P. A. 'N. S- Phila., 1868, 2. b. Coluhroidea. — Achrochordidae, Cope, P. A. N. S. Phila., 1864, 231.^' = Homalopsinae, Cope, P. A. N. S. Phila., 1864, 167.^' zzCohibridae, Cope, P. A. A. A. S., xix, 238, 1870.'' z= Ehabdosomidae, Cope, P. A. A. A. S., xix, 238, 1870.'' Peoteeoglypha. a. Co7iocerca. = Elapidae, Cope, P. A. ^. S. Phila., 1864, 231.'' nl^ajidae. Cope, P. A. JST. S, Phila., 1864, 231.'' *' Aproterodootiens, Duni. et Bib. ^2 Achrochordiens, Dam. et Bib. 83 Natricidae, pars, Gthr., Cat. Col. Snakes B. M., 1858, 50-84, Potamophilidae, Jan. s-iAsinea, Group i3-hb, Cope, Proc. Acad. Nat. Sci. Phila., 1864, 231; Calamaridae, Olgodontidae, Corouellidae, Colubridae, Dryadidae, Dendropbididae, Dryiopbididae, Psammophididae, Lycodontidae, Scytalidae, Dipsadidae, etc., Gthr., Cat. Col. Snakes B. M., 1858, et op. alt. 85 Calamaridae partim, Gtbr., Cat. Col. Snakea B. M., 1858, 2-22. 86 Elapidae (pars), Gthr., Cat. Col. Snakes B. M., 1858, 209-237. s'' Elapidae (pars altera), Gthr., Cat. Col. Snakes B. M., 1858, 209-237. 23 b. Platycerca. Hydrophidae — Hydridae, Gray, Cat. Snakes B. M., 2, 35, 40, 1849.^' SOLEISrOGLYPHA.^^ (Solenoglyplia, Dum. et Bib.) Atractaspididae = Atractaspididae, Gthr., Cat. Snakes B. M., 239, 1858.'° Causidae = Causidae, Cope, P. A. IST. S., Phila., 1859, 334. Yiperidae =Vipendae, Gray, Cat. Brit. Miis., p. 18.'' Crotalidae = Crotalidae, Gray, Cat. Brit. Mus.'^ 88 Hydridae, Gray ; Hydrophidae, Schmidt, Fischer ; Cope, Proc. Acad. Phila., 1859 333. 89 Viperidae, Cope, Proc. Acad. Nat. Sci. Phila., 1859, 333. 90 Atractaspidinae, Cope, Proc. Acad. Nat. Sci. Phila., 1859, 334. 91 Viperinae, Cope, Proc. Acad. Nat. Sci. Phila., 1859 ; Giiother. 9' Crotalinae, Cope, Proc. Acad. Nat. Sci. Phila., 1859 ; Giiuther, Cat. Col. Snakes B. M. et auctorum. i>jv:rt II. CHECK -LIST OF THE SPECIES OF BATRACHIA AND REPTILIA OF THE NEARCTIC OR NORTH AMERICAN REALM. BATRACHIA. TRACHYSTOMATA. SIEENIDAE. Siren, Linn. Siren lacertina, Linn. ; Holbrook, N. Am. Herpetology, vol. v, p. 101. The Austroriparian region ; extreme points North Carolina, Florida, Matamoras, Mexico, and Alton, Illinois. PSEUDOBRANCHUS, Gray. PseudohrancJiiis striatus, LeConte; Holbrook, American Herpetology, vol. V, p. 109. Georgia. PEOTEIDA. PEOTEIDAE. Necturus, Eaf. Necturus lateralis, Say; Holbrook, Am. Herp., vol. v, pp. Ill, 115. Eastern region except New England and eastern Middle States: from a few points in the Austroriparian. Necturus punctatus, Gibbes. Eastern South Carolina. 25 CADUCIBEANCHIATA. AMPHIDMIDAE. Amphiuma, Linn. AmpJduma means, Linn.; Holbrook, Am. Herp., v, p. 89. Austrori- parian region, from Nortli Carolina to Mississippi. MuRAENOPSis, Fitzinger. 31uraenopsis tridactylus, Cuvier; Holbrook, Am. Herp., v, p. 93. Mis- sissippi and Louisiana. MENOPOMIDAE. Menopoma, Harl. Menopoma alleglieniense, Harl. ; Holbrook, Am. Herp., v, p. 95. All tributaries of the Mississippi, and streams of the Louisianian dis- trict to North Carolina. Menopoma fuscum, Holbrook, Am. Herp., v, p. 99. Headwaters of the Tennessee River. AMBLYSTOMIDAE. Ambltstoma, Tschudi. Amhlystoma talpoideum, Holbrook ; Cope, Proceedings Academy Phila- delphia, 1867, p. 172. Austroriparian region ; mountains of South Carolina. Amhlystoma opacum, Gravenhorst ; Cope, Proceed. Acad. Phila., 1867, p. 173. From Pennsylvania to Florida, to Wisconsin, and to Texas. Amhlystoma punctatum, Linn. ; Cope, loc. cit., 1867, p. 175. United States, east of the plains ; Nova Scotia. Amhlystoma conspersum, Cope, loc. cit., 1867, 177. Pennsylvania to Georgia. Amhlystoma bicolor, Hallowell ; Cope, loc. cit., 178. New Jersey. Amhlystoma tigrinum, Green ; Cope, loc. cit., 179. United States, east of the plains. Amhlystoma mavortium, Baird ; Cope, loc. cit., 184. United States, in the Central, Sonoran, and Pacific regions. Amhlystoma mavortium, Baird; subspecies californiense, Gray; Cope, loc. cit., p. 187. Pacific region. 26 Amhlystoma ohscurum, Baird ; Cope, loc. cit., p. 192. Iowa. Amhlystoma xipMas, Cope, loc. cit., p. 192. Ohio. Amhlystoma trisruptum, Cope, loc. cit., p. 194. New Mexico. Amhlystoma jefferso7iianum, Green, subspecies jeffersonianum, Green; Cope, loc. cit., p. 195. Pennsylvania and Ohio, and northward. Amhlystoma jeffersonianum^ Green, subspecies laterale, Hallowell ; Cope, loc. cit., p. 197. Canada and Wisconsin, and northward. Amhlystoma jeffersonianum, Green, subspecies fuscum, Hallowell ; Cope, loc. cit., 197. Indiana and Virginia. Amhlystoma jeffersonianum, Gieen, subspecies jplatineum ', Cope, loc. cit., p. 198. Ohio. Amhlystoma macrodactyhtm, Baird ; Cope, loc. cit., p. 198. Pacific region. Amhlystomaparoticum, Baird ; Cope, loc. cit., j). 200. Vancouver's Island and Washington Territory. Amhlystoma aterrimum, Cope, loc. cit., p. 201. Northern Eocky Mount- ains. Amhlystoma tenehrosum, Baird and Girard ; Cope, loc. cit., p. 202. Pacific region of Oregon and California. Amhlystoma texanum, ^Matihes', CQ])e,\oc. cit, -p. 204:. Texas. Amhlystoma cingulatum, Cope, loc. cit., p. 205. South Carolina. Amhlystoma microstomiim, Cope, loc. cit., p. 206. Austroriparian and Eastern regions, west of the Alleghany Mountains. DiCAMPTODON, Strauch. Dicamptodon ensatus, Eschscholz, Zoological Atlas, part v, p. 6, pi. xxii. Pacific region. PLETHODONTIDAE. BATEACHOSBi>s, Bonap. Batraclioseps attenvatus, Eschscholz, Hallowell, Jour. Acad. Phila., 1858, p. 348. Pacific region. Batraclioseps nigriventris, Cope, Proceed. Acad. Phila., 1869, p. 98. Fort Tejon, California. Batraclioseps pacijicus, Cope, Proceed. Acad. 1865, p. 195. Santa Bar- bara, Cal. Hemidaotylium, Tschudi. Eemidactylium scutatum, Schlegel ; Dumeril et Bibron, Erp. Gen^rale, ix, p. 118-9. lihode Island to Illinois, and to the Gulf of Mexico. 27 Plethodon, Tschudi. Pletliodon cinereus, Green, subspecies cinereus, Green ; Cope, Proceed. Acad. Pbila., 1869. p. 99. Eastern region. Pletliodon cinereus^ Green, subspecies erythronoius, Green ; Holbrook, N. Am. Herp., v, p. 43. Eastern region. Pletliodon cinereus^ Green, subspecies dorsalis, Baird, MSS. Louisville, Ky. ; Salem, Mass. Plethodon intermedins^ Baird, Proceed. Acad. Phila., 1857, p. 209. Vancouver's Island. Pletliodon glutifiosus, Green ; Cope, loc, cit., 1869, p. 99, Eastern and Austroriparian regions. Plethodon oregonensis, Girard ; Cope, loc. cit., p. 99. Pacific region. Plethodon flavipunctatus, Straucli., Mem. Acad. Sci. St. Petersburg, 1871, xvi, 71. ? Nevv Albion, Cal. Pletliodon croceater, Cope, loc. cit., 1857, p. 210. Lower California. Stereochilus, Cope. Stereocliilus marginatum. Hallo well ; Coi3e, loc. cit., 1869, 101. Georgia. Manculus, Cope. Manculus remifer. Cope, Eeport of Peabody Academy, Salem, Mass., 1869, p. 84. Florida. Manculus quadridigitatus, Holbrook, N. Am. Herp., v, p. 65. Xorth Carolina to Florida. Spelerpes, Eaf. Spelerpes multiplicattis, Cope, Proceed. Acad. Pbila., 1869, p. 106. Arkansas. Spelerpes Mlineatus, Green ; Cope, loc. cit., p. 105. Eastern and Austrori- parian regions, excepting Texas. Spelerpes longicaudus, Green 5 Cope, loc. cit., j). 105. Eastern and Austroriparian regions, except Texas. Spelerpes guttolineatus, Holbrook ; Cope, loc. cit., p. 105. North and South Carolina, Georgia, and Alabama. Spelerpes ruber, Daudin, subspecies ruber, Daudin; Cope, loc. cit., 1869, 105. Eastern and Austroriparian regions. 28 Spelerpes ruber, subspecies sticiiceps, Baird, MSS. Soutli Carolina. Spelerpes ruber, Daudin/ subspecies montanus, Baird ; Jour. Acad. Pbila., vol. i, p. 293. Alleghany Mountains, from Pennsylvania to South Carolina. Gyrinophtlus, Cope. Gyrinopliilus porpliyriticu8, Green ; Cope, Proceed. Acad. Pbila., 1869, p. 108. Alleghany Mountains, from New York to Alabama. Anaidbs, Baird. Anaides lugubris, Hallowell ; Cope, loc. cit., 1869, p. 109. Entire Pacific region. Anaidesferreus, Cope, loc. cit., 1869, p. 109. Oregon. DESMOGNATHIDAE. Desmognathus, Baird. Besmognatlius ocliropliaea, Cope, Proceed. Acad. Pbila., 1869, p. 113. Alleghany Mountains, from New York to Georgia. Desmognathus fusca, Rafinesqne; Cope, loc. cit., 115 ; subspecies /i^sca, Raf. ; Cope, loc. cit., 116. Essex County, Massachusetts, to Biloxi, Mississippi. Desmognathus fusca, Raf., subspecies auriculata, Holbrook ; Cope, loc. cit., ]3. 116. South Carolina to Louisiana. Desmognathus nigra, Green ; Cope, loc. cit., p. 117. Alleghany Mount- ains, from Pennsylvania southward. PLEURODELIDAE. DiEMYCTTLUS, Rafiucsque. Diemyctylus torosus, Eschscbolz j Girard, U. S. Expl. Exped., 1858, p. 5. Pacific region. Diemyctylus miniatus, Raf., subspecies miniatus, Raf.; Hallowell, loc. cit.; Holbrook, N. Am. Herp., v, p. 57. Eastern and Austrori- parian regions. Diemyctylus miniatus, Raf,, subspecies viridescens, Raf.; Holbrook, N. Am. Herp., v, p. 77. Eastern and Austroriparian regions. 29 AIURA. BUFOOTFORMIA. BUFONIDAE. BuFO, Laurenti. Bufo pimctatus, Baird; Girard, U. S. Mex. Bound. Surv., ii, p. 25. Sonoran and Lower Galifornian regions. Bufo dehilis, Girard; Baird, U. S. Mex. Bound. Surv., ii, p. 26 {B. insidior). Sonoran region. Bufo JialopMlus, Baird; Girard, U. S. Mex. Bound. Surv., ii, p. 26. Pacific region. Bifo columMensis, Baird ; Girard, Herpetology U. S. Expl. Exped., 77. Pacific region and Montana. Bufo alvarkis, Girard, U. S. Mex. Bound. Surv., ii, j). 26. Sonoran region. Bufo microscaphus, Cope, Proc. Acad. Nat. Sci. Pliila., 1866, p. 301. Sonoran region. Bufo speeiosus, Girard, U. S. Mex. Bound. Surv., ii, p. 26. Lower Rio Grande (Sonoran). Bufo lentiginosuSy Shaw, subspecies frontosus, Cope, Proc. Acad. Phila., 1866, p. 301. Sonoran region. Bufo lentiginosus, subspecies cognatus, Say ; Holbrook, N. Am. Herp., v, p. 21. Texan district. Bufo lentiginosus, subspecies americanus, LeConte; Holbrook, Girard, XJ. S. Mex. Bound. Surv., ii, p. 25. Eastern and Austroriparian regions to the plains. Bufo lentiginosus, subspecies lentiginosus, Latr. ; Holbrook, N. Am. Herr)., V, p. 7. Austroriparian region. Bufo lentiginosus, subspecies fowlerii, Putnam, MSS. Massachusetts to Lake Winnipeg. Bifo quercicus, Holbrook, N. Am. Herp., v, p. 13 ; Cope, Proc. Acad. Phila., 1862, p. 341. Floridan and Eastern Lousianian districts to North Carolina. Bufo valUceps, Wiegmann; Girard, U. S. Mex. Bound. Surv., ii, p. 25, pi. xl, figs. 1-4 {B. nebulifer, Girard). Texan district (also Mexico). 30 FIEMISTEENIA. EIsTGYSTOMIDAE. Engystoma, Fitzinger. Engysfoma caroUnense, Holbrook, N. Am. Herp., v, p. 23. Austroripa- riau region. ARCIFERA. HYLIDAE. AORis, Dum., Bibr. Acris gryllus, LeCoute, subspecies gryllus, Holbroolf, K. Am. Herp., iv, p. 131. Austroriparian region. Acris gryllus, LeConte, subspecies crepitans, Baird, U. S. Mex. Bound. Surv., ii, p. 28. Eastern and Central regions. Chorophilus, Baird. Chorophilus triseriatus, Wied, subspecies clarkii, Baird, U. S. Mex. Bound. Surv., p. 28. Texan district. , OhoropMlus triseriatus, subspecies triseriatus, Wied. Central and East- ern regions. Cliorophilus triseriatus, subspecies corporalis. Cope, MSS. New Jersey. CJiorophilus nigritus, LeConte ; Holbrook, N. Am. Herp., iv, p. 107. South Carolina and Georgia. Choropliilus angulatus, Cope {Gystignathus ocularis), HolbrQok, N. Am. Herp., iv, p. 137. South Carolina. t Choropliilus ocularis, Daudin {CystignatJms ornatus), Giinther, Cat. Bat. Salien. Brit- Mus., p. 29. South Carolina and Georgia. Cliorophilus ornatus, Holbrook, K. Am. Herp., iv, p. 25. South Carolina; Georgia. Hyla, Laurenti. Syla curta. Cope, Proc. Acad. Phila., 1866, p. 313. Lower Californian region. Hyla regilla, Baird ; Girard, U. S. Expl. Exped., p. 60. Pacific region. Hyla eximia, Baird, TJ. S. Mex. Bound. Surv., p. 29. Sonoran region. Hyla andersonii, Baird ; Cope, Proc. Phila. Acad., 1862, 154. New Jer- sey to South Carolina. 31 Hyla squirella, Daudiu; Holbrook, N. Am. Herp., iv, pi. 30. Austrori- l^arian region. Hyla caroUnensis, Pennant; Holbrook, K. Am. Herp., iv, p. 29. Austro- riparian region. ffyla carolmensis, Penn., subspecies semifasciata, Hallowell, Proc. Acad. Phila., 1856, 306. Texan district. Hyla picJceringii, Holbrook, N. Am. Herp., iv, pi. 34. Eastern region. Hyla femoralis, Daudin ; Holbrook, N. Am. Herp., iv, p. 31. Eastern part of Austroriparian region. Eyla versicolor, LeConte; Holbrook, N. Am. Herp., iv, p. 28. Eastern and Austroriparian regions. Hyla arenicolor, Cope'; Baird, U. S. Bound. Surv., 29* Sonorau region. Eyla cadaverina, Cope ; Hallowell, U. S. P. E. E. Surv., x, Williamson's Eeport, 21. Pacific region. Hyla gratiosa, LeConte, Proc. Acad. Phila., 1856, 146. Florida; Lower Georgia. Smilisca, Cope. Smilisca haudinii, Dum., Bibr. ; Baird, TJ. S. Bound. Sarv., p. 29, pi. xxxviii, figs. 1-3. Lower Eio Grande, Mexico. CYSTIGNATHIDAE. LiTHODYTES, CopC. LWiodytes ricordii, Dum., Bibr. ; Cope, Proc. Acad. Plaila., 1862, 153. Southern Florida (Bahamas ; Cuba). Epirhexis, Cope. Upirliexis longipes, Baird, U. S. Mex. Bound. Surv., pi. xxxvii, figs 1-3. Lower Eio Grande. SCAPHIOPIDAE. Spea, Cope. Spea homhifrons, Cope, Proc. Acad. Phila., 1863, p. 53. Central region. 8pea hammondii, Baird; Cope, Proc. Acad. Phila., 1863, p. 53. Pacific region to San Diego. Spea multipUcata^ Cope, loc. cit., p. 52. linear city of Mexico.- SOAPHiopus, Holbrook. Scaphiopus varius, Cope, subspecies ^Y^r^Ms, Cope, loc. cit., p. 52. Lower California. 32 Scapliiopm variuSj Cope, subspecies rectifrenis, Cope, loc. cit., p. 53. Sonorau region. Scaphiopus coucJiii, Baird ; Cope, loc. cit., p. 52, Sonoran region. ScapMopus holbrooMi, Harlau; Cope, loc. cit., p. 54, Eastern and Aus- troripariau regions. EANIFOEMIA. RANIDAE. Eana, Linn. Eana areolata^ Baird and Girard, subspecies capiio, LeConte, Proc. Acad. Phila., 1855, p. 425. Floridau district. Eana areolata, Baird and Girard, subspecies areolata, Bd. Gir., U. S. Mex, Bound. Surv., 28, pi. xxxvi, figs. 11-12. Texan district. Bana moyitezumae, Baird, U. S. Mex. Bound. Surv., p. 27. Mexican plateau. Eana halecina, Kalm ; Holbrook, N. Am. Herp., iv, p. 91 ; subspecies halecina, Hallowell, Proc. Acad. Phila., 1856, pp. 141, 250. Eastern coast-countries of Eastern and Austroriparian regions. Eana lialeeina, Kalm, subspecies herlaiidieri, Baird, U. S. Mex. Bound. Surv., p. 27. Entire Interior of Korth America ; Mexico. Eaiia palustriSj LeConte 5 Holbrook, K Am. Herp., iv, p. 95. Eastern region. Eana septentrionalis^ Baird, Proc. Acad. Phila., 1854, p. 61 [E. sinuata^ Bd.). Canada to Montana. Eana clamitans, Merrem.; Holbrook, IST. Am. Herp., iv, pp. 85-87. East- ern region, Louisianian district. Eana catesMa7ia, Shaw; Holbrook, K Am. Herp., iv, p. 77. Eastern and Austroriparian regions. Eana temporaria, Linn., subspecies atirora, Bd.; Gird., U. S. Expl. Exped. Herp., p. 18. Eana temporaria, Linn., subspecies silvatica, LeConte; Holbrook, N. Am. Herp., iv, p. 24. Eastern region. Eana temporaria, Linn., subspecies cantahrigensis, Baird, Proc. Acad. Phila., 1854, p. 61. Canadian district of Eastern region to Kocky Mountains. Eana pretiosa, Baird; Girard, U. S. Expl. Exped. Herp., p. 20. Pacific subregiou. 33 OPHIDIA. SOLENOGLYPHA. • OKOTALIDAE. Aploaspis, Cope. Aploaspis lepida, Kennicott, Proc. Acad. Phila., 1861, p. 206. Western Texas. Grotalus, Linn. Crotalus pyrrJms, Cope, Proc. Phila., 1866, p. 308. Central Arizona. Crotalus mitcJiellii, Cope, loc. cit., 1861, p. 293. Lower California. Crotalus cerastes, Hallowell; Baird, U. S. Mex. Bound. Surv., vol. ii, p. 14. Arizona. Crotalus iigris, Kennicott, U. S. Mex. Bound. Surv., vol. ii, p. 14. Ari- zona. Crotalus enyo, Cope, Proc. Acad. Phila., 1861, p. 293. Lower California. Crotalus Jiorridus, Linn. ; Holbrook, N. Am. Herp., iii, p. 9. Eastern and Austroriparian regions. Crotalus adamanteus, Beauvois, subspecies adamanteus, Beauvois; Baird and Girard, IST. Am. Serpents, p. 3. North Carolina to Florida. Crotalus adamanteus, Beauvois, subspecies atrox, Baird and Girard, Cat, p. 5. Indian Territory and Texas to Souora and Southern and Lower California. Crotalus adamanteus, Beauvois, subspecies scutulatiis, Kennicott, Proc. Acad. Phila., 1861, p. 207. Arizona. Crotalus lucifer, Baird and Girard, Cat., p. 6. Pacific subregion ; mount- ains of Arizona. Crotalus yolystictus; Cope, Proc. Acad. Phila., 1865, p. 191. Table land of Mexico. Crotalus confluentus. Say ; Baird and Girard, loc. cit., p. 8. Central and Sonoran regions, entering Texan district of the Austroriparian. Crotalus molossus, Baird and Girard, Cat., p. 10. Sonoran region, enter- ing the Texan district. Caudisona, Laurenti. Caudisona rava, Cope, Proc. Acad. Phila., 1865, p. 191. Table land of Mexico. 3h 34 Caudisona miliaria, Liuu. ; Baird and Girard, Cat., p. 11. Austioriparian region and Sonora. Caudisona edicardsii, Baird and Girard, Cat., p. 15. Sonoran region. Caudisona tergemina, Say; Baird and Girard, Oat., p. 14. Eastern region west of the Allegheny Mountains ; Georgia.. Ancistrodon, Beauvois. Ancistrodon piscivorus, Lacepede, subspecies piscivorus, Lac^p^de; Baird and Girard, Cat., 19. Austroriparian region, except Texas. Ancistrodon piscivorus, Lac6pede, subspecies pugnax, Baird and Girard, Cat., p. 20. Texan district. Ancistrodon contortrix, Linn. ; Baird and Girard, Cat., p. 17. Entire East- ern and Austrorijiarian regions. Ancistrodon atrofuscus, Troost.; Holbrook, N. Am. Herp., lit, p. 43. Mountains of Tennessee and North Carolina. PEOTEEOGLYPHA ELAPIDAE. Elaps, Schneider. Maps fulvius, Linn., Baird and Girard, Cat., p. 21 ; subspecies fulvius. Austroriparian region. Elaps fulvius, Linn., subspecies tener, Baird and Girard, Cat., p. 22. Texas. Elaps euryxanthus, Kennicott, Proc. Acad. Phila., 1860, p. 337. Sono- ran region. Elaps distans, Kennicott, loc. cit., p. 338. Chihuahua ; Florida. ASINEA. COLUBRIDAE. Caephophiops, Gervais. CarpliopMops lielenae, Kennicott, Proc. Acad. Phila., 1859, p. 100. South- ern Illinois ; Mississippi. Carphophiops amoenus, Say ; Baird and Girard, Cat., p. 129. Massachu- setts to Louisiana and Illinois. OarpJiopMops vermis, Kennicott, Proc. Acad. Phila., 1859, p. 99. Mis- souri; Kansas. 35 YrRaiNiA, Baird and Girard. Virginia harperti, Dum., Bibr., Erpetologie G6n6rale, vol. vi, p. 135. Texas; ? Georgia. Virginia valeriae, Baird and Girard, Cat., p. 127. Maryland to Illinois and IsTorth Carolina. Virginia elegans, Kennicott, Proc. Acad. Phila., 1859, p. 99. Southern Illinois; Arkansas, Haldba, Baird and Girard. Haldea striatula, Linn. ; Baird and Girard, Cat., p. 122. Virginia to Texas. Tantilla, Baird and Girard. Tantilla planiceps^ Blainville ; Baird and Girard, Cat,, p. 154. Lower California. Tantilla gracilis^ Baird and Girard, Cat., p. 132. Texas. Tantilla halloicellii, Cope, Proc. Acad. Phila., 1861, p. 7. Texas. Tantilla nigriceps, Kennicott, Proc. Acad. Phila., 1860, 328. Texas; New Mexico ; Arizona. Tantilla coronata, Baird and Girard, Cat., p. 131. Georgia ; Mississippi. Abastor, Gray. Abastor erythrogrammus, Dandin ; Baird and Girard, Cat., 125. Ti^orth Carolina to Alabama. Paranoia, Gray. Faraneia ahacura, Holbrook ; Baird and Girard, Cat., p. 123. Austro- riparian region. Chilomeniscus, Cope. CMlomeniscus stramineus, Cope, Proc. Acad. Phila., 1860, p. 339. Lower California. CMlomeniscus epMppicus, Cope, Proc. Acad. Phila., 1867, p. 85. Owen Valley, California (Sonoran subregion). CMlomeniscus cinctus, Cope, Proc. Acad. Phila., 1861, p. 303. Sonora. Chionactis, Cope. CMonactis occipitalis^ Hallowell, U. S. Pacific E. E. Survey, vol. x, Will- iamson's Eeport, p. 15. Fort Mojave, Arizona. 3G Chionactis occipitalis, Hallowell, subspecies annidata, Kennicott, U. S. Mex. Bound. Surv., vol. ii, p. 22. Colorado Desert, Arizona. CoNTiA, Baird and Girard. Contia mitis, Baird and Girard, Cat., p. 110. Pacific region. Contia isozona, Cope, Proc. Acad. Phila., 1866, p. 304. Utah ; Arizona, Contia episcopa, Kennicott, U. S. Mex. Bound. Surv., ii, p. 22. Texas. Contia pygaea, Cope, Proc. Acad. Phila., 1871, p. 222. Florida. SONOEA, Baird and Girard. Sonera semiannulata, Baird and Girard, Cat., p. 117. Sonora. LoDiA, Baird and Girard. Lodia tenuis, Baird and Girard, Cat., p. 116. Washington Tet-ritory. Gyalopium, Cope. Gyalopium canum. Cope, Proc. Acad. Phila., 1860, 243. Arizona. Cemophora, Cope. Cemopliora coccinea, Blumenbach, Baird and Girard, Cat., p. 118. Aus- troriparian region. Ehinochilus, Baird and Girard. Bhinochilus lecontei, Baird and Girard, Cat., p. 120. Sonoran and South- ern Pacific regions. Osceola, Baird and Girard. * Osceola elapsoidea, Holbrook; Baird and Girard, Cat., p. 133. Virginia to Florida. Ophibolus, Baird and Girard. Ophibolusdoliatus,Ijmn., subspecies coGcineus, Schlegel; Baird and Girard, Cat., p. 89. Florida to New Mexico ; Kansas. Ophibolus doliatus, Linn., subspecies amaurus, Cope, Proc. Acad. Phila^» 1860, p. 258. Ophibolus doliatus, Linn., subspecies gentilis, Baird and Girard, Cat., p. 90. Arkansas. Ophibolus doliatus, Linn., subspecies annulatus, Kennicott, Proc. Acad» Phila., 1860, p. 329. Kansas; Arkansas and Texas. 37 , OpJiibolus doUatus, Liun., subspecies doliatus, Linn.; Oope, Proc. Acad., 1860, p. 256. Maryland and Virginia to Kansas; Arkansas, Louisi- ana, and Texas. OpMbolus doliatus, Linn., var. triangulus, Boie; Baird and Girard, Cat., p. 87. From Virginia northward to Canada, Iowa, and Wisconsin. O^Mbolus multistratusy Kennicott, Proc. Acad. Phila., 1860, p. 328. Ne- braska. Ophibolus pyrrhomelas, Cope, Proc. Acad. Phila., 1866, p. 305. Arizona and California. Ophibolus getulus, Linn., subspecies boylii, Baird and Girard, Cat., p. 82. Pacific and Sonoran regions. Ophibolus getulus, Linn., subspecies conjunctus, Cope, Proc. Acad. Phila., 1861, 301. Lower California. Ophibolus getulus, Linn., subspecies splendidus, Baird and Girard, Cat., p. 83. Sonoran region. Ophibolus, getulus, var. sayi, Holbrook ; Baird and Girard, Cat., p. 84. United States, between the Allegheny and Eocky Mountains, from the Gulf of Mexico to Illinois. Ophibolus getulus, Linn.; subspecies getulus, Linn.; Baird and Girard, Cat., p. 85. From Maryland to Florida and Louisiana, east of the Alleghenies. Ophibolus californiae, Blainv. ; Baird and Girard, Cat., p. 153. Lower California. Ophibolus rhonibomaculatus, Holbrook; Baird and Girard, Cat., p. 86. North Carolina to Georgia. Ophibolus calligaster, Say ; Cope, Proc. Acad. Phila., 1860, p. 255. Illi- nois to Kansas and Arkansas. DiADOPHis, Baird and Girard. Diadophis punctatus, Linn., subspecies punctatus, Linn. ; Baird and Girard, Cat., p. 112. United States'and Canada, east of the plains and Texas. Diadophis punctatus, Linn,, subspecies stictogenys, Cope, Proc. Acad. Phila., 1860, p. 250. Texas. Diadophis punctatus, Linn., subspecies amabilis, Baird and Girard, Cat., p. 113. Pacific and Sonoran regions ; occasional in Texan district and Central and Eastern regions as far as Ohio. 38 DiadopMs dysopes, Cope, Proc. Acad., 1860, p. 251. Habitat unknown. DiadopMs arnyi, Kennicott, Proc. Acad., 1859, p. 99. Illinois and Kan sas. DiadopMs regalis, Baird and Girard, Cat., p. 115. Arizona 5 Sonora. CoNioPHANES, Hallowell. Coniophanes imperialism Girard, U. S. Mex. Bound. Surv., vol. ii, p. 23. Chihuahua. Hypsiglena, Cope. Sypsiglena oclirorJiyncM, Cope, Proc. Acad., 1860, 246. Lower Califor- nia north to San Diego. Sypsiglena ochrorhyncha, Cope, subspecies chloropliaea, Cope, loc. cit.^ 1860, p. 247. Arizona. SiBON, Fitzinger. Sibon annulattim, Linn., subspecies septentrionale, Kennicott, U. S. Mex. Bound. Surv., vol. ii, p. 16. Southwestern Texas. Trimorphodon, Cope. TrimorpJiodon lyrophanes, Cope, Proc. Acad. Phila., 1860, p. 343. Lower California and Arizona. Phimothyra, Cope. Vhimothyra grahamiae, Baird and Girard, Cat., p. 104. Lower California and Sonoran regions to Utah and Texas. Phimothyra grahamiae, Baird and Girard, subspecies hexalepis, Cope, Proc. Acad. Phila., 1866, p. 304. Phimothyra decurtata, Cope, Proc. Acad., 1868, p. 310. Lower California. Dromicus, Bibron. Dromicus flavilatus, Cope, Proc. Acad. Phila., 1871, p. 223. Coast of North Carolina. Cyclophis, GUnther. Cyclophis vernalis, DeKay; Baird and Girard, Cat., p. 108. Eastern and Austroriparian regions ; rare in the latter. Cyclophis aestivus, Linn. ; Baird and Girard, Cat., p. 106. Austroriparian region, and the Eastern as far as New Jersey, Maryland, and South- ern Illinois. CoLUBEE, Linn. Coluber emoryi, Baird and Girard, Cat., p. 157. Texas and the Missis- sippi Valley to Kansas and Illinois ((7. calligaster, Kenn. ; C. rhino- megas, Cope). Coluber lindheimerii, Baird and Girard, Cat., p. 74. Texas and Arkansas, Coluber vulpinus, Baird and Girard, Cat., p. 75. Massachusetts to Mich- igan, Kansas and northward (C. spiloides, D. & B.). Coluber quadrivittatus, Holbrook ; Baird and Girard, Cat., p. 80. Xorth Carolina to Florida. Coluber obsoletus, Say, Kennicott, Proc. Acad. Phila., 1860, p. 330 ; sub- species obsoletuSj Say; Baird and Girard, Cat., p. 73. Entire Eastern United States, from Middle Texas to Massachusetts. Coluber obsoletus, Say, subspecies conjinis, Baird and Girard, Cat., p. 76 {C. rubricepSjD. SoB.). Austroriparian region ; Western MissousL Coluber guttatus, Linn. ; Baird and Girard, Cat., p. 78. Austroriparian: region to Central Virginia. Spilotes, Wagler. Spilotes couperii, Holbrook ; Baird and Girard, Cat., p. 92. Georgia. Spilotes ereberinus, Cope; Baird and Girard, Cat., p. 158. Texas to Ala- bama {Georgia obsoleta^ B. & G.). PiTYOPHis, Holbrook. PityopMs melanoleucus, Daudin; Baird and Girard, Cat., p. 65. New Jersey to Soath Carolina and Ohio. PityopMs sayi, Schlegel, subspecies sayi, Schlegel ; Baird and Girard, Cat., p. 151. Illinois to Kansas and northward. PityopMs sayi, Schlegel, var. mexicanus, Dum^ril et Bibron, Erp. G6n., vol. vii, p. 236. Sonoran and Central regions, entering the Texaa district. PityopMs sayi, Schlegel, var. bellona, Baird and Girard, Cat., p. 66. Sonoran and Pacific regions, with Nevada and Utah. PityopMs catenifer, Blainville; Baird and Girard, Cat., p. 69. Pacific, region. PityopMs vertebralis, Blainville ; Cope, Proc. Acad. Phila., 1860, p. 342 (P. haematois, Cope). Lower California. PityopMs elegans, Kennicott, U. S. Mex. Bound. Surv., p. 18. Sonoran region. 40 Bascanium, Baird and Girard. Bascanium constrictor, Linn.; Baird and Girard, Cat., p. 93. Central, Austroriparian, and Eastern regions. Bascanium constrictor, Linn., subspecies vetustum, Baird and Girard, Cat., p. 97. Pacific region. Bascanium antliicum. Cope, Proc. Acad. Phila., 1862, p. 238. Loui- siana (?). Bascanium Jiagelliforme, Catesb., subspecies flagelliforme, Baird and Girard, Cat., p. 98. South Carolina to Florida. Bascanium flagelliforme, Catesb., subspecies piceum, Cope, MS. Camp Grant, Arizona. Bascanium flagelliforme, Catesb., subspecies testaceum, Say; Baird and Girard, Cat., pp. 99 and 150. Lower Californian and Sonoran re- gions, with Nevada, Utah, and Texas. Bascanium taeniatum, Hallowell, subspecies laterale, Hallowell, Proc. Acad. Phila., 1853. Sonoran and Pacific regions. Bascanium taeniatum, Hallowell, subspecies taeniatum, Hallowell; Baird and Girard, Cat., pp. 103 and 160. Pacific and Sonoran regions; Utah and Nevada. Bascajiium taeniatum, Hallowell, subspecies ornatum, Baird and Girard, Cat., p. 102. Western Texas. Bascanium aurigulum, Cope, Proc. Acad. Phila., 1861, p. 301. Lower California. Chilopoma, Cope. Chilopotna rufopunctatum. Cope, Report on Eeptiles of Wheeler's Survey west of one hundredth meridian, 1875 (MS.). Sonoran district. EuTAENiA, Baird and Girard. Eutaenia saurita, Linn.; Baird and Girard, Cat., p. 24. Austroriparian and Eastern regions. Eutaenia saclcenii, Kennicott, Proc. Acad. Phila., 1859, p. 99. Floridan district. Eutaenia faireyi, Baird and Girard, Cat., p. 25. Mississippi Valley, from Louisiana to Wisconsin. Eutaenia proxima. Say ; Baird and Girard, Cat., p. 25. Valley of the Mississippi, from Wisconsin to Louisiana ; Texas ; Northeastern Mexico. Eutaenia radix, Baird and Girard, Cat., p. 34. Central region to Lake Michigan ; Oregon. 41 Untaeiiia viacostemma, Kennicott, subspecies megalops, Kennicott, Proc. Acad. Phi la., 1860, p. 330. Sonorau region. Euiaeida hammondii, Kennicott, Proc. Acad. Phila., 1860, p. 332. Pacific region. Eiitaenia marciana, Baird and Girard, Cat., p. 36. Arkansas, Texas, and entire Eio Grande Yalley. Uutaenia vagrans, Baird and Girard, subspecies vagrans, Baird and Girard, Oat., p. 35. Central, Pacific, and northern parts of Sonoran regions. Eutaenia vagrans, Baird and Girard, subspecies angustirostris, Kennicott, Proc. Acad. Phila., 1860, p. 332. Southern Sonoran region. Eutaenia elegans, Baird and Girard, Cat., p. 34. California. Eutaenia cip^topsis, Kennicott, Proc. Acad. Phila., 1860, p. 333. Lower Californian and Sonoran regions. Eutaenia ornata, Baird, U. S. Mex. Bound. Surv., p. 16. Valley of the Eio Grande del Norte. Eutaenia sirtalis, Linn., subspecies dorsalis, Baird and Girard, Oat., p. 31. Entire North America. Eutaenia sirtalis, Linn., subspecies ordinata, Linn. ; Baird and Girard, Cat., p. 32. Northern part of Eastern region ; Nova Scotia ; North Alabama. Eutaenia sirtalis, Linn,, subspecies sirtalis, Linn. ; Baird and Girard, Cat., p. 30. North America, excepting the Sonoran, Lower Cali- fornian, and southern half of Pacific regions. Eutaenia sirtalis, Linn., suhs])Gcies parietalis. Say, Long's Exped. Eocky Mts., 1, p. 186. Central and Pacific regions ; Illinois. Eutaenia sirtalis, Linn., subspecies obscura, Cope, MS. Eastern subre- gion north of Washington; northern part of Pacific region. Eutaenia sirtalis, Linn., subspecies dorsalis, Baird and Girard, Cat., p. 31. North America, except the Sonoran and Lower Californian regions. Eutaenia sirtalis, Baird and Girard, subspecies picTceringii, Baird and Girard, Cat., p. 29. Pacific region ; Minnesota ; Texas. Eutaenia sirtalis, Linn., subspecies tetrataenia, Cope, MS. Pitt Eiver, California. Eutaenia atrata, Kennicott, Cooper and Suckley's Zool. Wash. Terr., p. 296. California. Eutaenia cooperii, Kennicott, in Cooper and Suckley's Nat. Hist. Wash. Terr., p. 296. Washington and Oregon. 42 Stoeerta, Baird and Girard. ^toreria occipitomaculata^ Storer ; Baird and Girard, Oat., p. 137. Eastr em region 5 South Carolina ; Georgia. Storeria dekayi, Holbrook; Baird and Girard, Cat., p. 135. Central, Aus- troriparian, and Eastern regions. Teopidoclonium, Cope. Tropidoclonium storerio'ides, Cope, Proc. Acad. Phila., 1865, p. 190. Plateau of Mexico. Tropidoclonium lineatum, Hallowell, Proc. Acad. Phila., 1850. Kansas to Texas. Tropidoclonium Mrtlmidii, Kennicott, Proc. Acad. Phila., 1856, p. 95. Illinois; Ohio. Tropidonotus, Kuhl. Tropidonotus clarMi, Baird and Girard, Cat., p. 48. Texas. Tropidonotus graJiamii, Baird and Girard, Cat., p. 47. The Mississippi Valley, from Louisiana to Wisconsin ; Michigan. Tropidonotus leheris, Linn.; Baird and Girard, Cat., p. 45. Austroriparian and Eastern regions, including Texas. Tropidonotus rigidus, Say ; Baird and Girard, Cat., p. 46. Pennsylvania to Georgia, east of the Allegheny Mountains. Tropidonotus validus, Kennicott, subspecies validus, Kennicott, Proc. Acad. Phila., 1860, p. 334. Lower Californian and Sonoran regions; Utah. Tropidonotus validus, Kennicott, subspecies celaeno, Cope, Proc. Acad. Phila., p. 341. Lower California. Tropidonotus compsolaemus, Cope, Proc. Acad. Phila., 1860, p. 368. Florida. Tropidonotus compressicaudus, Kennicott, Proc. Acad. Phila.^ 1860, p. 335. Florida. Tropidonotus ustus, Cope, Proc. Acad. Phila, 1860, p. 340. Florida. Tropidonotus fasciatus, Linn. ; Baird and Girard, Cat., p. 39. Austro- riparian region. Tropidonotus sipedon, Linn., subspecies sipedon, Linn. ; Baird and Girard, Cat., p. 38. Eastern and Austroriparian regions, excepting Texas. Tropidonotus sipedon, Linn., subspecies woodhousei, Baird and Girard, Cat., p. 42. Texas to Missouri. Tropidonotus sipedon, Linn., subspecies coucliii, Kennicott, Proc. Acad., 1860, p. 335. Sonoran region. 43 Tropidonotus sipedon, Linn., subspecies erytJirogaster, Shaw ; Baird and Girard, Cat., p. 40. Austroriparian region, except Texas ; Michigan and Kansas. Tropidonotus taxispilotus, Holhroobj Baird 'and Girard, Cat., p. 43, North Carolina to Georgia. Tropidonotus rhomMfer, Hallowell ; Baird and Girard, Cat., p. 43. Loui- siana to Illinois and Michigan. Tropidonotus eyclopium, Dum. et Bibron ; Cope, Proc. Acad., 1861, p. 299, Florida. Helicops, Wagler. Helicops allenii, Garman," Proc. Bost. Soc. Nat. Hist., 1874, p. 92, rioridan district. Heterodon, Beauv. Meterodon platyrhinus, JjntreiWe ', Baird and Girard, Cat., p. 51. Entire Austroriparian and Eastern regions. Meterodonplatyrhinus, Latr., subspecies atmodes, Baird and Girard, Cat., p. 57. North Carolina to Georgia. Seterodon simus, Linn., subspecies simus, Baird and Girard, Cat., p. 59. Austroriparian region, excepting Texas. Seterodon simus, Linn., subspecies nasicus, Baird and Girard, Cat., p. 61. Sonoran and Central regions and Texas. BOIDAE. Charina, Gray. Charina bottae, Blainv., Nouvelles Annales Mus. Hist. Nat., iii, 1834, 57. Lower Californian region. Charina plumhea, Baird and Girard, Cat., p. 139. Pacific region ; ? Nevada. LICHANURIDAE. LiCHANURA, Cope. Lichanura trivirgata, Cope, Proc. Acad. Phila., 1861, p. 304. Lower California. Lichanura myriolepis, Cope, Proc. Acad. Phila., 1868, p. 2. Lower Cali- fornia. Lichanura roseifusca, Cope, Proc. Acad. Phila., 1868, p. 2. Lower Cali- fornia. 44 SCOLECOPHIDIA. STENOSTOMIDAE. Stenostoma, Wagl. Stenostoma duloe, Baird and Girard, Cat., p. 142. Sonoran region j Texas. Stenostoma humile, Baird and Girard, Cat., p. 143. Pacific region. LACERTILIA. OPHEOSAURI. AMPHISBAET^IDAE. EHlNEtJRA, Cope. EMneiira floridana, Baird; Cope, Proc. Acad. Phila,, 1861, p. 75. Floridan district. PLEURODONTA. TYPHLOPHTHALMI. AmELLIDAE. Aniella, Gray. Aniella pulcJira, Gray. Pacific region, from San Francisco southward. LEPTOGLOSSA. SCINCIDAE. Oligosoma, Girard. Oligosoma laterale, Say ; Holbrook, N. Am. Herp., ii, p. 133. Austro- ripariau region; Northwest South Carolina. EuMECES, Wiegmann. Eimieces sejJtentrionalis, Baird, Proc. Acad. Phila., 1858, p. 256. Minne- sota and Nebraska. 45 Eumeces egregius, Baird, Proc. Acad. Phila., p. 256. Florida. Eumeces oiiocre^is, Cope, Report of Peabody Academy, Salem., 1869, p. 82» Florida. Eumeces tetragrammus, Baird, Proc. Acad. Phila., 1858, 256. Lower Rio Grande. Eumeces anthracinus, Baird, Jour. Acad. Pbila., i, p. 293. PeiiDsylvania to Texas, iu mountains. Eumeces inornatus, Baird, Proc. Acad. Phila., 1856, p. 256. Nebraska. Eumeces onultivirgatus, Hallowell, Proc. Acad. Phila., 1857, p. 215. Central region. Eumeces le^togrammus, Baird, Proc. Acad. Phila., 1858, p. 256. Central region. Eumeces obsoJetus, Baird and Girard, Proc. Acad. Phila., 1852, p. 129. Sonoran region, and borders of Central and Austroriparian. Eumeces guttulatus, Hallowell ; Sitgreaves's Report on Zuni, p. 113. Sono- ran region and Western Texas. Eumeces sMltonianus, Baird and Girard; Baird in Stansbury's Report Salt Lake, p. 349. Pacific region. Eumeces fasciatus, Linn.; Holbrook, N. Am. Herp., ii, p. 117, and pp. 121, 127. Central, Austroriparian, and Eastern regions. Eumeces longirostris, Cope, Proc. Acad. Phila., 1861, p. 313. Bermuda Islands. LACERTIDAE. Xantusia, Baird. Xantusia vigilis, Baird, Proc. Acad. Phila., 1856, p. 255. Pacific sub- region. TEIDAE. Cnemidophorus, Wiegmann. CnemidopJiorus maximus^ Cope, Proc. Acad. Phila., 1863, p. 104. Lower California. Cnemidophorus graliamii, Baird and Girard, Proc. Acad. Phila., 1852, p. 128. Eastern Sonoran region. Cnemidophorus sexlineatus, Linn. ; Holbrook, l!f. Am. Herp., ii, p. 109. Sonoran and Austroriparian regions, to Southeast Virginia. Cnemidophorus inornatus, Baird, Proc. Acad. Phila., 1858, p. 255. South- ern Sonoran region. Cnemidophorus octolineatus, Baird, Proc. Acad. Phila., 1858, p. 255, Southern Sonoran region. 46 Cnemidopliorus perplexus, Baird and Girard, Proc. Acad. Phila., 1852, p. 128. Rio Grande Yalley. €nemidojphorus tessellatus, Say, subspecies tessellatus, Say j Baird, U. S. P. E. E. Surv., X, Beckwith's Eej)ort, p. 18. Southern Colorado. {JnemidopJiorus tessellatus, Say, subspecies tigris, Baird and Girard; Stansbury's Eeport Salt Lake, p. 338. Pacific and Sonoran regions to Utah. Cnemidophorus tessellatus, Say, subspecies melanostethus, Cope, Proc. Acad. Phila., 1863, p. 104. Southeast Arizona. €nemidophorus tessellatus, Say, subspecies gracilis, Baird and Girard, Proc. Acad. Nat. Sci. Phila., 1852, 128. Southeast Arizona. Yekticaria, Cope. Verticaria hyperythra, Cope, Proc. Acad. Phila., 1863, p. 103. Lower California to San Diego. DIPLOGLOSSA. ANGUIDAE. Opheosaurus, Daudin. Opheosaurus centralis, Daudin ; Holbrook, N. Am. Herp., ii, p. 139. Austroriparian region ; Tennessee ; Kansas. GEEEHONOTIDAE. Barissia, Gray. Barissia olivacea, Baird, Proc. Acad. Phila., 1858, p. 255. Southern California. Gerrhonotus, Wiegmann. Qerrlionotus nohilis, Baird and Girard, Proc. Acad. Phila., 1852, p. 129. Sonora. Gerrhonotus principis, Baird and Girard, Proc. Acad. Phila., 1852, p. 175. Northern Pacific region. Gerrhonotus multicarinatus, Blainville {G. formosus), Baird and Girard, Proc. Acad. Phila., 1852, p. 175. Pacific and Lower Californian regions. Gerrhonotus grandis, Baird and Girard, Proc. Acad. Phila., 1852, p. 176. Pacific region. 47 Gerrhonotus scincicaudus, Skilton, Am. Jour. Sci. Arts, 1849, p. 202. Pacific and Lower Californiau regions. Gerrhonotus infernalis, Baird and Girardj Cope, Proc. Acad. Phila., 1866, 322. Western Texas. HELODEEMIDAE. Heloderma, Wiegmaun. Heloderma suspectum, Copej Baird, U. S. Bound. Surv., plate xxvi. Sonoran region. IGUANIA. IGUANIDAE. HoLBROOKiA, Girard. MolbrooMa maculata, Girard, subspecies maculata, Girard j Stansbury's Eeport, 1852, p. 342. Central and Sonoran subregions. Holbroohia maculata, Girard, subspecies propinqua, Baird and Girard, Proc. Acad. Phila. 1852, p. 126. Texas. HolhrooMa texana, Troschel ; Baird and Girard, Proc. Acad. Phila., 1852, p. 125. Sonoran region ; Western Texas. Callisaurus, Blaiuville. CalUsaurus dracontoides, Blainv., subspecies ventralis, Hallowell; Sit- greave's Eeport Zuni, p. 117. Sonoran region. Gallisaurus dracontoides, Blainv., subspecies gabMi, Cope, MS. North- ern Lower California. Callisaurus dracontoides, Blainv., subspecies dracontoides, Blainv., Nouv. Ann. de Mus., p. 426. Southern Lower California. Uma, Baird. Uma notata, Baird, Proc. Acad. Phila., 1858, p. 253. Sonora region. Sauromalus, Dumeril. Sauromalus ater, Dumeril ; Baird, U. S. and Mex. Bound. Surv., p. 6. Sonoran region. Crotaphytus, Holbrook. Crotaphytus colloHs, Say ; Holbrook, N. Am. Herp., ii, p. 79. Sonoran region ; Central region to latitude 40°. 48 Crotaphytus wisUzenii, Baird and Girard, Stansbury's Eeport Salt Lake, p. 340. Pacific and Sonoran regions ; Nevada, Utah. Crotapkytus reticulatus, Baird, Proc. Acad. Phila., 1858, p. 253. Western Texas. DiPSOSAUKUs, Hallowell. Dipsosaurus dorsalis, Baird and Girard, Proc. Acad. Phila., 1852, p. 126, Lower Californian, Southern Pacific, and Sonoran regions. Uta, Baird and Girard. Uia thalassina, Gope, Proc. Acad. Phila., 1863, p. 104. Lower California. Uta graciosa, Hallowell, Proc. Acad. Phila., 1854, p. 92. Pacific region. Uta nifjricauda, Cope, Proc. Acad. Phila., 1864, p. 176. Lower Cali- fornia. Uta sclwttii, Baird, Proc. Acad. Phila., 1858, p. 253. Southern California. Uta ornata, Baird and Girard, Proc. Acad. Phila., 1852, p. 126. Sonoran region. Uta stansMiriana, Baird and Girard, Stansbury's Eeport Salt Lq.ke, p. 345. Pacific, Lower Californian, and Sonoran regions ; Nevada, Utah. SoELOPORUS, Wiegmann. Sceloporus ornatus, Baird, U. S. Mex. Bound. Surv., p. 5. Southeastern Sonoran region. Sceloporus jarrovii, Cope, MS., Zool. Wheeler's Expl. west of the 100th merid., 1875. Sonoran region (Southern Arizona). Sceloporus poinsettii, Baird and Girard, Proc. Acad. Phila., 1852, p. 126. Sonoran region. Sceloporus torquatus, Peale and Green, Proc. Acad. Phila., ii, p. 131. Southern Sonoran region. Sceloporus coucMi, Baird, Proc. Acad. Phila., 1858, p. 254. Southern Sonoran region. Sceloporus marmoratus, Hallowell, Proc. Acad. Phila., 1852, p. 178. Sonoran region j Utah. Sceloporus Mseriatus, Hallowell, U. S. P. E. E. Surv., x, Williamson's Eeport, p. 6. ? Habitat. Sceloporus undulatus, Harlan, subspecies imdulatus, Harlan ; Holbrook, Am. Herp., ii, p. 73. North America, except Sonoran and Lower Californian regions. 49 Sceloporus undulatus, Harhm, subspecies thaycrii, Baird and Girard,Proc. Acad. Phila., 1852, p. 127. California, Utah, New Mexico, and Eio Grande Valley. Sceloporus co7isobrinus, Baird and Girard ; Marcy's Eeport lied Eiver, 1853, p. 237. Sonoran and Central regions ; Oregon and Texas. Sceloporus scalaris, Wiegmann, Herpetologia Mexicana, 1834, p. 52. So- nora. Sceloporus Jloridanus, Baird, Proc. Acad. Phila., 1858, p. 254. Florida. Sceloporus spinosus, Wiegmann, Herpetologia Mexicana, p. 50. Texas. Sceloporus clarJcii, Baird and Girard, subspecies clarMi, Baird and Girard, Proc. Acad. Phila., 1852, p. 127. Sonoran and Southern Pacific regions. Sceloporus clarMi, Baird and Girard, subspecies zosteromus, Cope, Proc. Acad. Phila., 1863, p. 105. Lower California. Phrynosoma, Wiegmann. Phrynosoma modestum, Girard, Stansbury's Eept. Salt Lake, p. 365. So- noran region. Phrynosoma platyrMnum, Girard, Stansbury's Kept Salt Lake, p. 361. Utah and Nevada. Phrynosoma maccallii, Hallowell ; Baird, U. S. Mex. Bound. Surv., p. 9. Desert of Gila and Colorado. Phrynosoma regale, Girard, U. S. Mex. Bound. Surv., p. 9. Desert of Gila and Colorado. Phrynosoma planiceps, Hallowell, Proc. Acad. Phila., 1852, p. 178. South- ern Sonoran region. Phrynosoma cornutum, Harlan ; Girard, Stansbury's Kept. Salt Lake, p. 360. Texas. Phrynosoma hernandezii, Girard, Herp. U. S. Expl. Exped., p. 395. New Mexico ; Eio Grande Valley. Phrynosoma douglassii. Bell, subspecies ornatissimum, Girard, Herp. U. S. Expl. Exped., 1858, p. 396. Sonoran region. Phrynosoma douglassii, Bell, subspecies douglassii. Bell ; Girard, Herp. U. S. Expl. Exped., p. 398. Entire Central region; Oregon and Washington. Phrynosoma blainvillei, Gray ; Girard, U. S. Expl. Exped. Herp., p. 400. Pacific region. 4 H • 50 Phry7iosoma coronatum, Blainville, Nouv. M6m. Museum, iv, p. 28. Lower California. Cyclura, Harlan. Cyclura hemilopha, Cope, Proc. Acad. Phila., 1863, p. 105. Lower Cali- fornia. ANOLIDAE. Anolis, Merrem. Anolis principalis, Linn. ; Holbrook, N. Am. Herp., ii, 67. Austroripa- rian region. Anolis cooper ii, Baird, Proc. Acad. Phila., 1868, p. 254. ? California, NYCTISAURA. GECCONIDAE. CoLEONYX, Gray. Coleonyx variegatus, Baird, U. S. Mex. Bound. Surv., p. 12. Souoran region. Sphaerodactylus, Cuv. Sphaerodactylus notatus, Baird, U. S. Mex. Bound. Surv., p. 12. Key West, Fla. (Cuba). Phyllodactylus, Gray. » Phyllodactylus tuherculosus, Wiegmann, Nova Acta. K. L. C. Acad., xvii, p. 241. Sonoran region. Phyllodactylus xanti, Cope, Proc. Acad. Phila., p. 102. Lower California. DiPLODACTYLUS, Gray. Diplodactylus unctus, Cope, Proc. Acad. Phila., 1863, p. 102. Lower Cal- ifornia. TESTUDIMTA. ATHECAE. SPHARGIDIDAE. Sphargis, Merrem. Sphargis coriacea, Eondelet ; Holbrook, X. Am. Herp., ii, p. 45. Atlan- * tic coast to Massachusetts. 51 ORYPTODIRA. CHELONIIDAE. Thalassochelys, Fitz. Thalassochelys caouana^ Linn. ; Holbrook, N. Am. Herp., ii, p. 33. En- tire Atlantic coast. Eretmochelys, Fitz. Eretmoclielys imbricata, Linn. ; Holbrook, N. Am. Herp., ii, p. 39. South- ern Atlantic coast. Eretmochelys squamata, Linn. ; Agassiz, Cout. Nat. Hist. U. S., i, p. 382. Pacific coast. Chelonia, Brong. Chelonia mydas, Schw. ; Holbrook, N. Am. Herp., ii, p. 25. Atlantic coast south of Long Island. Chelonia virgata, Schw. ; Agassiz, Oont., i, p. 379. Pacific coast. TEIONYCHIDAE. Amyda, Agassiz. Amyda mutica, Lesueur, Mem. du Mus. d'Hist. Nat., xv, p. 263. Middle and northern tributaries of the Mississippi, and the Saint Lawrence. ASPIDONECTES, Wagl. Aspidonectes ferox, Schweigger; Holbrook, N. Am. Herp., ii, p. 11 Georgia to Western Louisiana. Aspidonectes spinifer, Lesueur, Mem. de Mus. d'Hist. Nat., xv, p. 258. Middle and northern tributaries of the Mississippi, and Saint Law- rence. Aspidonectes aspet\ Agassiz, Cont. Nat. Hist. U. S., i, p. 405. Lower Mississippi tributaries. Aspidonectes nuchalis, Agassiz, Oont. Nat. Hist. TJ. S., i, p. 406. Cumber- land and Upper Tennessee Kivers, Tennessee. Aspidonectes enioryi, Agassiz, Cont. Nat. Hist. TJ. S., i, p. 407. Texas. CHELYDEIDAE. Chelydra, Schw\ Chelydra serpetitina, Linn. ; Holbrook, N. Am. Herp., i, p. 139. From Canada to Ecuador. Wanting in the Pacific subregion. 52 Macrochelys, Gray. Macrochelys lacertina, Schweigger; Ho] brook, N.Am. Herp., i, p. 147. Tributaries of the Gulf of Mexico, from Florida to Western Texas, extending to Missouri in the Mississippi. CINOSTERNIDAE. Aromochelys, Gray. Aromoclielys odoratus, Latreille ; Holbrook, N. Am. Herp., i, p. 133. Aus- troriparian and Eastern subregious. Aromochelys carinatus, Gray ; Agassiz, Cont., i, p. 423. Louisianian dis- trict. OiNOSTERNUM, Wagl. Cinosternum pennsylvanicum, Bosc, subspecies pennsylvanicum, Bosc; Holbrook, N.Am. Herp., i, p. 127. Austroriparian (? Texas) and Eastern subregions. Cinosternum pennsylvanicum, Bosc, subspecies douhledayi, Gray, Cat. Tort., Crocod., and Amphisb. B. M., p. 33. Southwestern United States. Cinosternum sonoriense, LeConte, Proc. Acad. Phila., 1854, p. 183. Ari- zona. Cinosternum Jlavescens, Agassiz, Contrib. Nat. Hist. U. S., i, p. 430. Arizona. Cinosternum Jienrici, LeConte, Proc. Acad. Phila., 1854, p. 182. Souoran subregion. EMYDIDAE. PsEUDEMYS, Gray. Pseudemys rugosa, Shaw ; Holbrook, N. Am. Herp., i, p. 55. New Jersey to Virginia. Pseudemys concinna, LeConte ; Holbrook, N. Am. Herp., i, pp. 119, 65. Austroriparian region C? Texas). Pseudemys moMliensis, Holbrook, N. Am. Herp., i, p. 71. Florida to the Eio Grande of Texas. Pseudemys hieroglypMca, Holbrook, N. Am. Herp., i, p. 111. Middle, Western, and Gulf States. Pseudemys scabra, Linn. ; Holbrook, N. Am. Herp., i, p. 49. North Carolina to Georgia. 58 Pseudemys troostii, Holbrook, N. Am. Herp., i, p. 123. Valley of the Mississippi to Illinois. Pseudemys elegans, Wied. ; Holbrook, N. Am. Herp., i, p. 115. Central region and Texan district. Malacoclemmys, Gray. Malacoclemmys geograpMcus^ Lesueur ; Holbrook, N. Am. Herp., i, p. 99. Mississippi Valley to Pennsylvania and New York. Malacoclemmys pseudogeograpMcus, Holbrook, N. Am. Herp., i, p. 103. Mississippi Valley to Wisconsin and Northern Ohio. Malacoclemmys palustris, Gmelin; Holbrook, N. Am. Herp., i, p. 87. Coast from New York to Texas. Chrysemys, Gray. Chrysemys picta, Herm. ; Holbrook, N. Am. Herp., i, p. 75. Eastern region ; Louisiana, Mississippi. Chrysemys oregonensis, Harlan; Holbrook, N. Am. Herp., i, p. 107. Central region. Chrysemys reticulata, Bosc; Holbrook, N. Am. Herp,, i, p. 59. Gulf States. ''" Chelopus, Eafinesque. Ghelopus guttatus, Schneider; Holbrook, N. Am. Herp., i, p. 81. East- ern region east of Ohio. Chelopus muhlenbergii, Schweigger ; Holbrook, N. Am. Herp,, vol. i, p. 45. New Jersey and Eastern Pennsylvania. Chelopus insculptus, LeConte ; Holbrook, N. Am. Herp., i, p. 93. East- ern region east of Ohio. Chelopus marmoratus, Baird and Girard ; Hallowell, U. S. P. E. E. Surv., X, Williamson's Eeport, p. 3. Pacific region. Emys, Brong. Umys meleagris, Shaw ; Holbrook, N. Am. Herp., i, p. 39. Alleghenian district of Eastern region to Wisconsin. CiSTUDO, Flem. Oistudo clausa, Gm., subspecies clausa, Gm. ; Holbrook, N. Am. Herp., i, p. 31. Eastern region and Louisianian and Floridan districts. Cistudo clausa, subspecies triunguis, Agass., Contrib., i, p. 445. Austro- riparian region to Georgia ; Eastern Pennsylvania. Cistudo ornata, Agass., Contrib., i, p. 445. Central region. 54 TESTUDINIDAE. Testudo, Liim. Testudo Carolina^ Linn. ; Holbrook, N. Ain. Herp., i, p. 25. Austroriparian region, not north of South Carolina. Testudo agasslzii, Cooper, Proc. Calif. Acad. Sci.* Southern Pacific and Western Sonoran regions. CROOODILIA. CROOODILIDAE. Alligatok, Cuv. Alligator mississippiensis, Daudin ; Holbrook, N. Am. Herp., vol. ii, p. 53. Austroriparian region. Crocodilus, Cuv. Crocoduus americanus, Seba. ; Dum. et Bib., Erp. Gen., iii, p. 119. Flori- dan district. Enumeration of genera and species. Genera. Species. BATEACHIA. Trachystomata 2 2 Proteida 1 2 Urodela 15 49 Anura 11 48 29 101 EEPTILIA. Ophidia. Solenoglypha 4 18 Proteroglypha 1 3 Asinea 36 109 Scolecophidia 1 2 42 132 Lacertilta. Opheosauri 1 1 Pleurodonta 22 76 Nyctisaura . 3 5 26 82 Testudinata. Athecae 1 1 Oryptodira 16 40 17 41 Ckocodilia 2 2 257 Total species 358 * Referred to, vol. for 1870, p. 67. PA.RT III. ON GEOGRAPHICAL DISTRIBUTION OF THE VERTEBRATA OF THE REGNUM NEARCTICUM, WITH ESPECIAL EEFERENCE fO THE BATRACHIA AND REPTILIA. I.—THE FAUNAE REGIONS OF THE EARTH. As is well known, the life of the different regions of the earth presents marked peculiarities. The differences are, in some measure, connected with the geographical and topographical relations of the continents. To each of them, peculiar divisions of animals are found to be confined; and the sum of these, or the " fauna," is found in each case to present marked characters. The districts thus marked out are the Australian (which includes Australia, Van Diemen's Land, New Guinea, etc.); the Neotropical, including South America, the West Indies, and Mexico; the Nearctic, or North America ; the Mhiopian, or Africa south of the Desert of Sahara; the Palaeotropical, which embraces India and the adjacent islands; and, lastly, the Palaearctic, or Asia north of the Himalaya, Europe, and Africa north of the Great Desert. These six districts are variously related by common forms, as well as distinguished by different ones. The name of "realms" has been given to them. The Australian realm is peculiar in the absence of nearly all types of mammalia, except the Omithodelphia and the Marsupials ; in the pres- ence of various Struthious birds ; in great development of the Elapid serpents, and absence of the higher division of both snakes and frogs {i. e.j Solenoglypha and Raniformia) ; in the existence of Dipnoi [Cera- todus) and certain Characinid fishes. On the other hand, many of the lizards and birds are ot the higher types that prevail in India and Africa, viz, the Acrodonta and the Oscines. The polar hemispheres each possess certain common forms which are not found in the other. Thus, in the southern, which is here uuderatood as embracing the three realms called Australian, Neotroi)ical, and 55 56 Ethiopian,* the Sirenian mammalia ; Struthious birds ; Elapid and Pero- podous snakes ; JDipnoan, Chromid, and Characin fishes ; and Pleurodire tortoises, are universal, and not, or very sparsely, found in the northern. Of other groups peculiar to the Southern or Equatorial regions, the Edentate mammalia belong to the Neotropical and Ethiopian ; the Osteo- glossid fishes to the Neotropical, Palaeotropical, and Australian ; while monkeys occur in the southern faunae, except the Australian, and in the Palaeotropical. The Ethiopian shares many peculiarities with the Northern. Thus, Insectivorous mammals, Yiperine snakes, and Eani- form frogs, are only found here in the southern hemisphere. The Neotropical realm only possesses exclusively the Platyrhine mon- keys and the great majority of the humming-birds. It shares with other Southern regions the Edentate and Tapiroid mammals ; Struthi- ous, Pullastrine, and Olamatorial birds ; Elapid snakes 5 Arciferous frogs; and Characin, Chromid, Osteoglossid, and Dipnoan fishes. It has but few types of the Northern regions ; these are numerous pleuro- dont Lacertilia, the Acrodonts being entirely absent ; and a few bears, deer, and Oscine birds. The Ethiopian realm is that one which combines the prevalent features of the Palaearctic region with the southern-hemisphere types already mentioned, together with some found elsewhere only in the Palaeotrop- ical, and a very few peculiar. The two latter classes not being men- tioned elsewhere, they may be here enumerated. This region shares, with the Indian alone, the Catarrhine monkeys, the Elepliantidae Ehi- nocerotidae, and Chamaeleous. Its peculiar types are the Lemuridae, Hippopotamidae, and Gameleopardalidae, among mammals, and Polypter- idae and Monnyridae among fishes. The Northern realms of the earth agree in possessing all the earless seals ; but most of its common characters are shared by India and Africa. With these regions they possess most all of the Euminant and Insectivorous mammals, and all the Raniform frogs. The Palaearctic and Palaeotropical are very much alike, and ought probably to be united. The latter differs in possessing monkeys, elephant, rhinoceros, and tapir, Elapid serpents (cobras), and Osteoglossid fishes. In other respects, as in mammalia generally, Oscine birds and fresh-water fishes, and reptiles generally, it agrees with Northern Asia and Europe. The Nearctic or North American realm is that with which we have here to do. It extends from the Arctic regions to a line drawn across Northern Mexico, and includes the peninsula of Lower California. It * "Eogaea" of Gill, characterized in his article "On the geographical distribution of Fishes", in the "Annals and Magazine of Natural History" (4), sv, 255. 57 agrees in mauy points with the northern fauna of the Old World, and has been united with it by some authors ; but its peculiar types, and those which it shares with South America, are too numerous for such an arrangement. Its relations are exhibited in the following table : Differs from Palaearctic in — Agrees with Palaearctic in — Peculiar forms. Neotropical forme. Mammalia in general Bassarididae. Procyonidae. Antilocapra . Megadermatidae. Dicotyles. Didelphys. Mephitis Birds except Cathartidae. Tanagridae. Icteridae. Clamatores in general. Trochilidae. Meleagridae . Odontophoriuae. Alligators. Amivid and Gerrhonotid lizards. Iguanid lizards. Emyd tortoises Chelydra Cinosternidae. Solenoglyph and Elapid venomous snakes. Raniform frogs Scaphiopodidae .... Arcifera. Plethodontidae. Amblystomidae. Diemyctylus. Megalobatrachus Trachystomata. Necturns. Amphiumidae. Percid fishes Aphredoderidae Siluridae. Cottidae. Haplomi Hypsaeidae. Accipenseridae. Spatulariidae. Cyprinidae Plagopterinae. Catostomidae.Gasterosteidae. Amiidae. Lepidosteidae. Petromyzon. The special peculiarities of the Nearctic region are then chiefly seen in the Fishes and Batrachia. In Birds and Mammals, its prominent divergences from the northern regions of the Old World are seen in the numerous representatives of forms which are characteristically South 58 Americau. Of these, the birds offer many genera peculiar to North America, while the few Mammalia are of Neotropical genera. The greatest resemblance between the North American and Palaearctic region is seen in the Mammalia. Around the Arctic regions as well as further south, several species, both of Mammalia and Birds, are identical. Among MoUusks there is also much resemblance. Anodonta^ JJnio, and Succinea are common to both the northern faunae, but have no common species; all three greatly predominate in numbers in North America. The snails of the west coast are very European in character, but there are but few Pupae in the Eegio Nearctica, and no Clausiliae, and Bulinms is represented by few species. II.—NUMBER OF SPECIES. The numbers of the Vertebrata found in the Nearctic realm are nearly as follows : Mammalia : Monotremata Marsupialia 1 JEdentatd 1 Rodentia 139 Insectivora 28 Chiroptera 23 Getacea . . 42 Sirenia 1 Hyracoidea Prohoscidea Perissodactyla i Onmivora 1 Artiodaetyla ^ / Buminantia 14 Pinnipedia . 13 r Fissipedia 46 \ Primates 1 310 AVES: ( Oscines 306 Passeres ^ „, , oo y Clamatores o6 Zygodactyli . - . 36 Syndactyli 20 Garnivora 59 AVES—Continued. Psittaci 1 Accipitres ^ . 61 Pullastrae v- 12 Gallinae 22 Brevipennes Grallae 81 Lamellirostres - 49 Steganopodes 13 Longipennes 71 Pygopodes 51 Eeptilia : CroGodilia 2 Testudinata 41 Lacertilia 82 Ophidia 132 BATEACHIA : Anura 48 Urodela 49 Gymnophidia Proteida 2 Trachystomata 2 Pisces : > Pharyngognathi 12 Labyrinthici Distegi 178 Bhegnopteri 2 PercomorpMi Epilasmia 18 ScypJiobrancMi 77 Haplodoci 3 .Anacanthini 36 ^ Heterosomata 22 Plectognathi 30 Pediculati 8 Hemibranchii - - - • 20 Lophohranclm - 7 Synentognathi 10 Percesoces 13 756 257 101 60 Pisces—Continued. Haplomi 34 Isospondyli 70 Plectospondyli -. 150 Scyphophori NematognatM 27 Notacanthi Glanencheli Ichthyocephali Holostomi Mnchelycephali 2 Golocepliali 3 Halecomorphi 2 Ginglymodi 15 Glaniostomi 30 iSelachostomi 1 Holocephali 2 Plagiostomi 46 Dipnoi 816 Dermopteri 8 Leptocardii. * 1 Total species of Vertebrata - 1 - . 2, 249 This number is considerably below the truth, as many ot the fishes, both of the ocean and of the fresh waters, remain undescribed. It is more difficult to state the number of species of the inferior divis- ions of the animal kingdom. It is asserted that 8,000 species of Cole- opterous insects have been discovered in the iTearctic region, and that this is probably about two-thirds of the whole. This would give 12,000 species of this the most numerous order, and the Lepidoptera, Hymenop- tera, and Biptera will follow at no great distance. Probably 50,000 is below the mark as an estimate of the number of species of insects of this region. One thousand species are to be added for the remaining Arthro- poda—say, 200 Myriopoda, 400 AracJmida, and 400 Crustacea. Of worms of land and water there are numerous species, the greater proportion of which are not yet known to science. The number of the Mollusca and Molluscoida from the coasts and inte- rior of the North American region is about 1,824, of which only 400 are marine. Of the remainder, 1,034 live in the numerous rivers and lakes, 61 Prosobranchiata and 400 are terrestrial and air-breathers. They are distributed among the classes as follows: Cephalopoda 25 pulmonata 400 ! Fresh-water 438 Marine 297 Heteropoda 28 Opisthobranchiata 53 Pteropoda , 25 scaphopoda 4 Fresh-water 596 Marine 377 MOLLXJSCOIDA. Lamellibranchiata Braohtopoda 10 ASCIDIA , 30 Bryozoa 39 The remaining divisions of the animal kingdom may be estimated to number nearly as follows : ECHINODERMATA (123). HOLOTHURroA. ECHINOIDEA . . - Crinoidea ASTEROIDEA . . East coast. 32 50 2 17 Inte- rior. Weat coast. 4 18 Medusae : Discophora . . . SipJionophora Ctenophora Polypi Hydroidea COELENTERATA (144). 80 .. 22 3 .. .. 2 12 .. 2 13 ..,., 7 The divisions of Protozoa are well represented in our waters, but the numbers of our Spongiida, Infusoria and Ehizopoda, have not yet been ascertained. III. — relations to other realms. It has been already remarked that several species of Vertebrata are common to our northern regions and Europe, Asia, etc. Thus, the 62 wolf extends throughout the northern hemisphere; the same maybe said of the fox, the ermine, and, perhaps, of the beaver. It is not improbable that our buffalo {Bos americanus) is a variety only of the B. bison of the Old World, and that the grizzly bear ( JJrsus horribilis) bears the same relation to the European brown bear (U. arctos). There are also certain corresponding or representative species ; thus, our red fox (Vulpesfulvus) is nearly related to the European fox {V. vulgaris), and the red squirrel {sciurus Jmdsonicus) to the 8. vulgaris of Euroi)e. The elk and moose {Cervus canadensis and Alces americanus) respectively answer to the C. elapJms and Alces europaeus. The majority of American deer belong to a peculiar group {Cariacus) mainly characteristic of the Nearctic realm; while the species of the orders Bodentia and Insectivora are mostly of characteristically distinct species or higher groups. Among birds, similar relations prevail. The singing-birds are the most characteristic of any continent, and here we find in North America the greatest number of species, genera, and families of birds which differ from those of the Old World. Of the latter, true thrushes, swal- lows, shrikes, and crows occur, but in limited numbers ; while the genera of finches are mostly distinct, and the vireos, tanagers, wood-warblers, Icteridae, and mock-thrushes, which form the bulk of our avifauna, do not exist in the Old World. On the other hand, starlings, flycatchers, and warblers are absent from North America. As we direct our observation to birds of extended flight, as the Accipitres and water-birds, cases of identity of species of opposite con- tinents become more frequent. This is mostly confined here, also, to the northern regions. The marsh-hawk {Circus cyaneus), peregrine falcon, fish-hawk, and golden eagle are examples among Falconidae. Among owls, the cases are still more numerous ; such are Nyctea nivea, Surnia ulula, Otus brachyotus, Stria; Jlammea. Some of these present geographical varieties. Corresponding species are common here, e. g.^ the American — Haliaetus leucocephalus to M. albicilla of Europe ; Buteo swainsonii to B. vulgaris ; Falco sparverius to F. tinnunculus ; Falco columbarius to F. aesalon; Bubo virginianus to B. maximus ; Otus vilsonianus to 0. vulgaris ; etc., etc. 63 The Nearctic realm possesses a peculiar family, the Cathartidae (turkey-buzzards), which the Old World lacks, but has no vultures properly so-called. There are several wading-birds common to the two contineuts ; and cases of identity among the ducks, gulls, and divers are relatively still more numerous. The Gallinae are, on the other hand, entirely distinct, though not without a few corresponding species. Among lower Vertebrata, specific identity is unknown, except in one frog {Bana temporaria) and a few marine fishes, with one of fresh-water, the northern pike {Esoa; Indus). The numerous tortoises of Korth America remind one especially of Eastern Asia and India, but the western regions of our continent are as deficient in this form of animal life as the corresponding part of the Palaearctic region. Ghelydra is peculiarly North American, and the Cinosternidae are Mexican in character. The principal Crocodilian is our alligator, which presents only minor differences from the South American caimans. The lizards are all of Neotropical families, except the seines {Eumeces), which are found elsewhere chiefly in Africa and Australia. The genera are nearly all peculiar, or extend a short distance into the northern parts of the Neo- tropical, Mexico, and the West Indies. Some families have, however, a correspondence with those of the Old World, as follows : The Nearctic — Teiidae to Lacertidae ; Gerrhonotidae to Zonuridae; Iguanidae to Agamidae. The Batracfiia present relations to the Europeo-Asiatic fauna in the species of one genus {Rana) of frogs, and one genus (Roto'plithalmus) of salamanders. In other respects, the Nearctic batrachiau fauna is highly peculiar. The cosmopolitan genus Hyla (tree-frogs) exists in numerous species, several of which are terrestrial. The burrowing-frogs {ScapMopidae) are nearly all peculiar to this fauna. The toads are of a peculiar division of the all but cosmopolitan genus Bufo. The salamanders present the greatest i)eculiarities. The large family of Plethodontidae is represented by various forms, mostly terrestrial ; while the genei-a Desmognathus and Amhlystoma, each alone in its family, present curious structural modifications. To the latter belong the Sire- dons, or larval Aniblystomae, which reproduce without regard to their metamorphosis, sometimes completing it and sometimes remaining unchanged. 64 As permanent gill-bearing Batrachia, Necturus represents the Palae- arctic Proteus, and Siren is quite peculiar to North America. The Amphiuma, or suakelike Batrachia, calls to mind the similar extinct forms of the Coal-Measures 5 while Protonopsis is represented by living species in Eastern Asia, and by a fossil genus in the Miocene of Ger- many. The marine fishes embrace some species which range both coasts of the North Atlantic. Such are the salmon, the haddock, the mackerel, etc., which furnish food and occupation for a numerous population on the northeastern coast. Farther south, the mullet [Mugil albula) is a valued food-fish, and is caught and packed in great numbers. The fishes of the Pacific coast are mostly distinct from those of the Atlantic, except a few circumi^olar forms, as Gasterosteus aculeatus ; but several (as Gadus vachna, Pall.) are found also on the Asiatic coast. On the warmer coasts, a few species are common to both oceans, while others exist which have a great range over several seas, noticeable among which are certain species of Plectognathi, particularly of Diodon, Ba- Ustes, etc. The fresh-water fishes embrace many families characteristic of the northern hemisphere, as the cods {Gadidae), Percidae or perch, the scul- pins (Cottidae), pike {Esocidae), chubs {Cyprinidae), the salmon, and herring, eel, sturgeon, and lamprey families. In the catfishes, the region reminds us of the tropical and southern regions ; though it is a singular fact that one of our genera (Amiurus) is represented by single species in China. The suckers [Gatostomidae) are very abundant and characteristic in all fresh waters; but here, again, a single species {Garpiodes sinensis) has been detected in China. This is paralleled by the genus Polyodon (pad- dle-fish), of which one species is found in the Mississippi Valley, and one in the Yang-tse-kiang. The most striking peculiarity of the Nearc- tic waters is the presence of the family of Lepidosteidae, or bony gars, which is represented by two genera and numerous species. No form at all resembling these exists in any other country, excepting again one species in China, and one other which is found in the adjoining Neotrop- ical region. Not less peculiar are the species of dog-fish {Amia), type of the order HalecomorpM, which have some remote affinities with South American forms. The relations to the Neotropical realm are in part indicated in the table on page 57, But few species are common to the Nearctic and 65 Southern Neotropical realms. But one mammal (the cougar, Felis con- color)^ and no reptiles, batrachians, nor fresh-water fishes, estend into Brazil ; but a number of birds are permanent residents throughout both realms. These are mostly waders, as follows : Rallus crepitans. Limosa fedoa. Tryngites rufescens. Actiturus hartramius. Heteroscelus hrevipes. Symphemia semipalmata. Ereunetes petrijicatus. Aegialitis vilsonius. Xyctlierodiiis violaceus. To these must be added the turkey-vulture, Cathartes aura. Then certain marine birds and a few fishes extend along the coasts of both regions, but their number is comparatively small. The number of species of the Nearctic realm which occur in the Mex- ican region is rather greater. The red lynx and raccoon are examples of mammals, and several species of wood-warblers, vireos, and hawks represent the birds as far south as the Isthmus of Darien. The only reptiles are the snapping-tortoise and the ringed snake OpMbolus dolia- tKS ; the only batrachian is the Bana Jialecina herlandieri. A few other species, as Eutaenia sirtalis, extend for a shorter distance into the same region. In the higher groups of the ^enus and family, we have greater com- munity with the Neotropical realm. But few genera of Batrachia and Beptilia &s.t&xiA to its Brazilian region, but there are a few common genera of Mammalia {Mephitis, Procyon, Ursus, Sciurus, Sesperomys, and Didelphys), and a number of birds, especially among the lower orders, and the scansores, syndactyli, and clamatores, particularly the Tyrannidae. The number of genera which enter Mexico and Central America is much greater, and I select the following from the mammals, reptiles, and batrachianS; as these are incapable of the migrations performed by birds. Cosmopolitan genera and those common to both the American realms are omitted. 5 H 66 Mammalia. Lynx. Urocyon. Putorius. Bassaris, Geomys. Thomomys. Ochetodon. Arvicola. Neotoma. Bigmodon. Cariacus. Antilocapra. Eeptilia. Crotalus. Candisona, Ancistrodon. Tropidoclo7iium. Tropidonotus. Eutaenia. Trimorphodon. Hypsiglena. OpMbolus. PMmotJiyra. PityopMs. Coluber. Tantilla. Chilomeniscus. Cinosternum. Chelydra. Pseudemys. Chelopus. Sceloporus. PJirynosoma. Heloderma. Barissia. Gerrhonotus. Oligosoma. Eumeces. Cnetnidophorus. 67 Batrachia. Amhlystoma. Spelerpes. Spea. Rana. Of fishes, the common genera of the fresh waters are few. They are Giyardinus, Gamhusia, HaplocMlus, and Fundulus of Cyprinodontidae, and Atractosteus of the bony gars. The southward distribution of the above genera terminates at various points ; but those which belong to the Austroriparian region, as distinguished from the Sonoran, are mainly confined to the Mexican plateau. The presence of these, together with a number of peculiar forms, indicates another region of the Nearctic, which is in many respects allied to the Austroriparian. This subject will be considered in a subsequent paper. In comparing the Nearctic realm with the West Indian region of the Neotropical, much less resemblance can be detected, especially in the Eeptiles and Batrachia. The only identical species is the AnoUs prin- cipalis, which is common to the Austroriparian region and Cuba, and there are three others of West Indian origin found in the southern part of riorida. The Anolis is the only reptilian genus of wide distribution in the Nearctic realm which occurs in the West Indian region. The West Indian genus Dromicus is represented by one species, a rare snake from the coast of North Carolina. In Batrachia, there is no community of species and none of genera, excepting in the case of the cosmopolitan genera Bufo and Hyla. « IV.—THE REaiONS. We may now consider the variations exhibited bj'^ the component parts of the Nearctic fauna. The distribution of types indicates six principal subdivisions, which have been called the Austroriparian^ Eastern, Central, Pacific, Sonoran, and Lower Californian. The Austro- riparian region extends northward from the Gulf of Mexico to the isothermal of 77° F. It commences near Norfolk, Ya., and occupies a belt along the coast, extending inland in North Carolina. It passes south of the Georgia Mountains, and to the northwestward up the Mis- sissippi Valley to the southern part of Illinois. West of the Missis- sippi, the boundary extends south along the southern boundary of the high lands of Texas, reaching the Gulf at the mouth of the Eio Grande. 68 The Eastern is the most extended, reaching from the isothermal line of 770 Y. north and from the Atlantic Ocean to the elevated plains west of the Mississippi Eiver. Manj^ of its forms extend up the bottoms of the rivers which flow to the eastward through " The Plains." The Cen- tral region extends from the limit of the Eastern as far west as the Sierra l^evada, and south on the mountains of Nevada, and along the mountains of New Mexico. The Sonoran includes parts of Nevada, New Mexico, Arizona, and Sonora in M-exico, It does not cross the Sierra Nevada, nor the Mojave desert, nor extend into the peninsula of Lower California. It sends a belt northward on the east side of the Sierra Nevada as far as, including Owen's Valley in Eastern California, latitude 37°, and enters other valleys in Nevada in the same way. It occupies the lower valley of the Eio Grande, and extends into Texas as far as the desert east of the Rio Pecos. It extends southward in Western Mexico as far as Mazatlan. The Lower Califoruian region occupies the peninsula of that name as far north as near San Diego. The peculiarities of these regions are well marked. The two regions included in Eastern North America differ from all the others in the abundance of their turtles and the small number of their lizards. Prolific of life, this area is not subdivided by any marked natural bar- riers. Hence, though its species present great varieties in extent of range, it is not divided into districts which are very sharply defined. The warmer regions are much richer in birds, reptiles, and insects than the cooler; and as we advance northward many species disappear, while a few others are added. The natural division of the eastern part of the continent is then in a measure dependent on the isothermal lines which traverse it. In accordance with this view, the following districts have been proposed, viz: The Carolinian; the Alleghanian ; the Canadian ; and the Hudsonian. The Austroriparian region includes the Floridan, Louisianian, and Texan districts. It possesses many peculiar genera of reptiles not found elsewhere, while the region north of it possesses none, its genera being distributed over some or all of the remaining regions. The num- ber of peculiar species in all departments of animal life is large. It presents the greatest development of the eastern reptile life. Six- teen genera of Reptiles and eight of Batrachia do not range to the northward, while ninety-nine species are restricted in the same manner. The peculiar genera which occur over most of its area are — 6y LlZAUDS. Aoiolis. Oligosoma. Snakes. Haldea. Cemopliora. Tantilla. ISpilotes. Ahastor. Farancia. Tortoises. » Macroclielys. . Crocodiles. Alligator. Batrachia. Ungystoma. Manculus. StereocMlus. Muraenopsis. Siren, I have omitted from this list ten genera which are restricted to one or the other of its subdivisions. The Siren, the Cemophora, the Anolis (chameleon), and the Alligator, are the most striking of the above char- acteristic genera. No genns of lizards is peculiar excepting Anolis and Oligosoma, which have their greatest development in other than the Nearctic continent. Among serpents, a few genera of Neotropical char- acter extend eastward along the region of the Mexican Gulf, as far as the Atlantic coast, which are not found in any of the Northern re- gions J such are Spilotes, Tantilla (occurs in Lower California), and Maps (also in the Sonoran). On the other hand, Celuta, Virginia, Saldea, and Storeria, embrace small serpents which it shares with the Eastern region. This region is the headquarters of the Batrachia, especially of the tailed forms. The majority of species of the tailless genera are found here, especially of Syla (tree-toads), Rana, and ClioropMlus. 70 There are no less than nine genera cf birds which do not, or only accidentally, range northward of this district. They are — Plotus. Tantalus. Platalea. Elanus. Ictinia. Conurus. Chamaepelia. CampepMlus. Helmitherus. All these genera, excepting the last, range into South America or farther. Among mammals, but few species and one genus {Sigmodon) are confined to it. Lepus aquaticus and L. palustris, the cotton-rat, the Florida Neotoma, etc., and a few others, are restricted by it. The fish- fauna is very similar to that of the Eastern region, under which it will be considered. The Eastern region differs from the Austroriparian almost entirely in what it lacks, and agrees with it in all those peculiarities by which it is so widely separated from the Central region, No genus of mam- mals is found in it which does not range into the Central or other region, excepting Condylura (star-nosed mole) ; but numerous species are confined to it, not extending into the Austroriparian. These number from twenty to twenty- five. Among birds, the following genera are shared with the more southern region only : Quiscalics, JSeiurus, Oporornis, Helmitlierus, Frotonotaria, Panda, Mniotilta, Ortyx. No genus of Eep- tiles, and but one of Batrachians {GyrinopMlus), is confined to this region ; but it shares all it possesses with the Austroriparian. It has but three genera of lizards, viz, CnemidopJiorus, Eumeces, and iScelO' porus, which are universally Nearctic. The Batrachian genera not found in the Central are — ScapMopus. GyrinopMlus. Spelerpes. Pleihodon. Hemidactylium. Desmatognathus. Menoponia. Nccturus. 71 The cliaracteristics of the fish-fauna of Eastern Xearctica are much more marked; two entire orders, represented by the gar {Ginglymodi) and dog-fish {Salecomorphi), are confined to it, and a series of genera of Percidae, embracing many species, known as Utheostominae, have the same range. The Siluridae all belong here, as well as a great majority of the genera of Cyprinidae and Catostomidae. In all of these divisions, the region is very rich in species, owing to the abundance of everflow- ing rivers and streains which drain it. The Polyodontidae (spoon-bill or paddle-fish) are not found in any of the other regions.* The Central region is characterized by the general absence of forests, as compared with the Eastern. It presents two distinct divisions, each peculiar in its vegetation : the division of the plains, which extends from the eastern border to the Eocky Mountains; and the Eocky Mountain region itself, w^hich extends to the Sierra Nevada. The former is covered with grass, and is almost totally treeless; the latter is covered with "sage- brush" [Artemisia), a short stout bush, which forms extensive areasof tree- less brush. The grass-covered plains are the range of the bison, though it formerly sought also the tracts of grass occasionally found among the Artemisia. The region, as a whole, is distinguished from the Eastern by the possession of several genera of ruminating Artiodactyles, i. e., An- tilocapra,Haplocerus, and Ovis, as well as certain species of the same group, i. e., Caria'cus macrotis (black-tailed deer) and C. leucurus. Other genera of mammals which distinguish it from the Eastern are Taxidea, Gynomys, SpermopMltis, Blpodomys, Perognathus, and Lagomys. A few species of Spermopliilus extend into the northwestern portion of the Eastern ; while the extensive genus Geomys (the subterranean gophers) range over the Central subregion, and into the Western and Gulf States the Austroriparian as far as the Savannah Eiver. A great many species of birds are peculiar to the Central region, and the following genera : Oroscoptes. Hydrobata. Myiadestes. Neocorys. Salpinctes. Picicorvus. Chondestes. Valamospiza. Emhernagra. Centrocercus. Pedioecetes. 'Excepting the coui«e of the Mississippi, and perhaps the Rio Grande. 72 The game-birds of the Central region are larger tban those of the Eastern. Such are the sage-cock, Centrocercus urophasianus ; the Fed i- oecetes j)1iasi(m€lh(s, or cock, of the plains; the Tetrao ohscurus ; several ptarmigan [Lagoj^vs)', and Bonasa ; the last three Palaearctic genera also. The reptiles are not numerous, and tortoises are especially rare. Besides the genera of lizards characteristic of the Eastern district, it adds Fhrynosoma, Crotaphytus, and JETolhrooMa. Among snakes, no genus is peculiar, and the moccasins and Maps are wanting. There is but one, possibly two, species of rattlesnake. Batrachians are few; most of the genera of A7iura are found, except Eyla. Among sala- manders, the only genus is Amblystoma; but this is abundant, its large larvae developing in the temporary pools of many arid regions. The burrowing- frog, Spea honiM/rons, ranges the same region, and breeds in much the same way. ;N"o genus of Batrachians or Eeptiles is peculiar to the Central region. Fishes are few in families and species, largely in consequence of the poverty of the region in rivers and streams. In the Western Colorado and the Humboldt, perch, pike, Siluridae, herring, cod, eels, gar, dog- fish, and sturgeon are entirely wanting. Cyprinidae, Catostomidae, 8al- monidar, and Cottidae are the only families abundant in individuals and species. The same remarks apply in great part to the Columbia Eiver, where, however, the Salmonidae have a great development. These sal- mon are principally marine species, which ascend the river to deposit their spawn. They belong to many species, all peculiar to the region, and embrace incredible numbers of individuals. The Facific region is nearly related to the Central, and, as it con- sists of only the narrow district west of the Sierra Xevada, might be regarded as a subdivision of it. It, however, lacks the mammalian genera Bos and Antilocapra, and possesses certain peculiar genera of birds, as Geococcyx (ground-cuckoo or chaparral-cock), Chamaea, and Oreortyx (mountain-ijartridge). Of marine mammalia, there are several peculiar types, as the eared seals (Otariidae) and sea-otcer {Enliydra). There are some genera of reptiles, e. g., Charina, related to the Boas, Lodia, Amelia, Gerrlionotus, and Xantusia, which do not occur in the Central subregion. There are three characteristic genera of Batrachia, all salamanders, viz, Anaides, Batraclwseps, and BiGamptodon; while the Eastern genera Flethodon and Biemyctylus re-appear after skipping the entire Central district. The other types of Eastern Amira are found here, there being two species of Hyla. 73 r A single species of tortoise {Chelojjus marmoratus) exists in tlie Pacific region. The fresh- water fish-fauna is much like that of the Central district in being poor in types. It adds the viviparous Pharyngognathi of the fam- ily of Einbiotocidae, which is represented by a number of species. The marine fauna differs from that of the east coast in the great number of species of Salmo and Sehastes and the variety of types of Cotfidae. In its northern regions, the genus Chiriis and allies have their peculiar hab- itat. The singular genus Blepsias (related to Cottus) exists on the same coast, and several valuable species of cods {Gadus auratus, G. periscopus, and Brachygadus minutus), with the peculiar form Bathymaster, belong especially to the northern coasts. The Sonoran region is strongly marked among the faunae already de- scribed. It is deficient in the species of ruminating Mammalia found in the Central, and possesses a smaller number of species of mammals than any of the others. Of birds, a few genera and several species are different from those of the Central ; such are CalUpepla (partridge), Cich- lopsis, 3IitrepJioms {Tyrannidae), Campylorhynchus, and Geococcyx. Most of these genera occur in Mexico, and the last-named in California also. It is in Eeptiles that the great peculiarity of this region appears. The following genera are not found in any of the other regions described : LiZAEDS. Heloder7na. Sauromalus. , Uma. Coleonyx. Serpents. Gyalopium. Chionactis. ^ Sonora. EhinocJdlus. Chilopoma. Eight other genera of Eeptilia are peculiar to this fauna and that of the Lower Californian region, under which they are enumerated. Heloder- ma, Coleonyx, and allies of Gyalopiiwi of the above list are more largely developed in species and individuals in the Mexican region of the Keo- tropical realm. Every one of the five genera of serpents of the Sonoran 74 region is characterized by a peculiar structure of the rostral plate, which is produced either anteriorly or laterally to an unusual degree ; two of the genera {PMmothyra and Chilomeniscus), common to the Lower Cali- fornian region, present the same peculiarity. This region is the headquarters of the rattlesnakes, there being no less than nine species found in it, of which six are peculiar. It also possesses a majority of the species of horned toads (Fhrynosoma) ; only four of the North American species being unknown there. The Testu- dinate fauna is very poor, possessing a few species of Nearctic charac- ter, and three Cinosterna, two of them of Mexican type. The Batrachian fauna exhibits but one genus of Urodela, but several of the Anura. Appropriately to its arid character, there is but one Eana, but six species of toad {Bufo), this being the headquarters of that genus in the Eegnum Nearcticum. The eastern genus Scaphiopus appears here, instead of the Spea of the other western regions. There is one species of tree-frog. Two species of turtles of the Cinosternidae have been found. The fresh-water fish-fauna is very poor, and but little known. In the Colo- rado Eiver proper, the Salmonidae and Cottidae appear to be wanting, leaving only Cyprinidae and Catostomidae. A strongly-marked division of the former, the Plagopterinae, which embraces three genera, is mainly restricted to the Colorado Eiver drainage, and is the most strikingfeature of the fish-fauna of the Sonoran region. , The Lower Californian region much more nearly resembles the Sonoran than the Pacific region. It possesses, however, many peculiar species of birds and reptiles. Seines appear to be wanting, but other lizards abound. The following genera of reptiles have been found here, which do not occur in any other region of Nearctica : Lizards. Verticaria. Diplodactylus. •^ Cyclura. Snakes. Lichanura. These, except the last, have been found in Mexico or South America. It shares with the Sonoran only, the following: 75 LiZAEDS. Dipsosaurus. CalUsaurus. Uta. , Phyllodactylus. Snakes. Trimorphodon. Sypsiglena. FMmotJiyra. Chilomeniscus. These genera coustitute the most characteristic feature of the two faunae, not occurring in any other part of North America. Trimorpho- don, Sypsiglena, and Phyllodactylus are well represented in Mexico. Of Batrachians we have, like the Sonoran, Eyla, ScapMopus, and Bufo, but, on the other hand, Plethodon, as in the Pacific and Eastern. Of the fresh-water fish-fauna, nothing is known; the streams are few and small. This region extends northward to the southern boundary of California. Among the Invertebrata, the Mollusca present facts of distribution similar in significance to those derived from the study of the Vertebrata. Thus the Eastern, the Middle, and the Pacific districts are plainly marked out in the fresh-water and land Mollusca. To the former are entirely confined the Streptopomatidae and the great majority of the Unionidae, which together constitute more than two-thirds the species of the Nearctic realm. Of land-shells, the great series of toothed snails [Mesodontinae), which embraces many genera and species, is almost con- fined to the Eastern subregion. The same is true of the snails of the group of Gastrodontinae and of the genera Hyalina?iii6. Hygromia. The Central subregion is characterized by its poverty in all that respects Mollusca, while several genera of land-snails are peculiar to the Pacific region, and are largely represented by species there. One hundred of the four hundred land- shells described from the Eegnum Nearcticum be- long to the western coast. Among snails, the genera Aglaja, Arionta, and Polymita are represented by handsome species. Macrocyclis and Bin. neya belong especially to this region. As is to be supposed, the Insects indicate a greater number of subdi- visions than the other animals. The fresh-water Crustacea have been but sparingly studied. They seem, however, to have a wide distribution j thus Cojnbarus (craw-fish) and Artemia are found everywhere where physical conditions are suitable. 76 v.—THE AUSTEORIPAEIAN REGION. V"*. Eeptiles whose distribution corresponds with the area of the Austroriparian region—24 : . Tradhystomata. Siren lacertina. Anura. Engystoma carolinense. Acris gryllus gryllus. Hyla squirella. Hyla carolinensis. OpMdia. Caudisona miliaria. Ancistrodon piscivorus. Elaps fulvius. Haldea striatula. Farancia abacura. Cemophora coccinea. Ophibolus doliatus coccineas. Coluber obsoletus confinis. Coluber guttatus. Trojiidonotus fasciatus. Lacer'tilia. Oligosoma laterale. Cnemidophorus sexlineatus seslineatus. Opheosaurus ventralis. Anolis principalis. Testudinata. Macroclielys lacertina (except Atlantic slope). Pseudemys mobiliensis (except Atlantic slope). Pseudemys concinna. Testudo Carolina. CrocodiUa. Alligator mississippiensis. As aleady remarked, this fauna is composed of the Floridan, Louis- ianian, and Texan districts. 77 The Floridan district contains either peculiar species of animals, or those of West Indian or South American character. The characteristic birds are chiefly of the latter character, hut among reptiles the follow- ing are cpnfined to it : Y^ Species confined to the Floridan district of the above—18 : ^ UrodeJa. Manculus remifer. Anura. Hyla gratiosa. Lithodytes ricordii (Cuba ; Bahamas). Eana areolata capito. Ophidia. Elaps distans (Sonoran also). Contia pygaea. Eutaenia sackenii. Tropidonotus compsolaemus. Tropidonotus compressicaudus. Tropidonotus ustus. Tropidonotus cyclopium. Helicops allenii. Lacertilia. Khineura floridana. Eumeces egregius. Eumeces onocrepis. Sceloporus floridanus. Sphaerodactylus notatus (Cuba). Crocodilia. Crocodilus americanus (Cuba). Of the above, the species of Crocodilus^ Sphaerodactylus, and Litlio dytes only, have been found in the Antilles. The genera of the above list which are peculiar to the Floridan district of the Nearctic fauna are — Lithodytes. Helicops. Ehineilra, Sphaerodactylus. 78 A venomous snake, the Ela;ps disians, is common to tbis district and the Sonoran fauna. Some small mammals are confined to this region also. The genera of birds that do not range north of it are — Certhiola. Zenaeda ^ Oreopelia > Pigeons. Starnaenas j Bostrhamus ) r^ j_ ^ , T > -Kaptores. Folyoorus ) Aramus ) .^ ^ . , ^ . > Waders. Auduoonia ) Phoenicopterus. Haliplana )„ Anous ) The Louisianian district possesses the peculiarities of the austroripa- rian fauna already pointed out, minus those of Florida and Texas. Of Mammalia, the genera Alces, Mustcla, Jaculus, Arctomys, Fiber, and Condy- lura are wanting, as well as the red-squirrel, Canada lynx, gray-rabbit, etc. Its most remarkable birds are the nonpareil finch, ivory-billed wood- pecker, parrakeet, etc., while its Mapsfulvius, or coral-snake, is one of the most beautiful of the order. A large and dangerous rattlesnake is also confined to it, viz, Gaudisona adamantea, and the well-known moccasin Ancistrodon piscivorus does not range outside of its boundaries. A species of the West Indian Dromiciis (serpents) has been found on the Atlantic coast. V«. Species confined to the Louisianian district—36 : (E confined to the Eastern portion j W to the Western, as far as known). Tracliystomata. Pseudobranchus striatus. E. Proteida. Necturus punctatus. E. TJrodela. Amphiuma means. Muraenopsis tridactyla. W. Amblystoma talpoideum. E. Amblystomn cingulatum. E. 79 Stereochilus marginatum. E. Manculus quadridigitatus. E.. Spelerpes guttolineatus. E. Anura. Bufo lentiginosus lentiginosus. Bufo quercicus. Chorophilus nigritus. Chorophilus augalatus. Chorophilus oculatus. I Chorophilus ornatus. 0][)liidia. Crotalus adamanteus adamanteus. Virginia harperti. Virginia elegans. W. Tantilla coronata. Abastor erythrogrammus. Osceola elapsoidea. E. Ophibolus rhombomaculatus. Coluber quadrivittatus. E. Spilotes couperii. E. Bascanium flagelliforme flagelliforme. E. Bascanium anthicum. W. Tropidonotus taxispilotus. Heterodon simus simus. Testudinata. Aspidonectes asper. W. Aspidonectes ferox. Aromochelys carinatus. Pseudemys hieroglyphica. (?) Pseudemys scabra. Chrysemys reticulata. Cistudo clausa triunguis. (Penna.) A number of the genera of the above catalogue are not yet known to extend their range into the Floridan or Texan districts, as follows : PseudobrancJms. Muraeno'psis. Virginia. Abastor. Osceola. 80 The genus Virginia occurs within the State of Texas, but whether within the Texan district is not certain, as the line separating the latter from the Louisiauian district is not well known. The Spelerpes multi- plicatus, a rare salamander from Western Arkansas, is in the same way, of uncertain reference. The species of the following list have a peculiar range, some of them (marked E) extending beyond the borders of the Austroriparian region V^. Species which range along the Mississippi Valley and not east- ward of it—13 : Urodela. Amblystoma microstomum (E.). OpMdia. Carphophiops helenae. Virginia elegans. Ophibolus calligaster (E.). Coluber emoryi (E,). Butaenia faireyi (E.). Eutaenia proxima. Tropidonotus grahamii (E.). Tropidonotus rhombifer. Testudinata. Macrochelys lacertina. Pseudemys troostii. Malacoclemmys geographica (E.). Malacoclemmys pseudogeographica (E.). The Texan district of the Aiistroriparian region is not the range of any genus not found elsewhere, but possesses the peculiar genera of the Louisiauian district, many of which are represented by correspond- ing and peculiar species. Seventeen such species of reptiles may be enumerated, besides a salamander and a toad. Several species of mam- mals are also peculiar to it, i. e., five rodents and two skunks. Of birds, three appear to be, so far as known, peculiar, Ortyx texanus, Vireo atricapillus, and Milvulus forjicatus. Many Mexican birds are found on the Eio Grande, while a few enter Texas to a greater distance, as Icterus parisorum. The high northwestern regions of the State should be assigned to the Sonoran fauna, as the range of the two partridges {Callipepla squamata and Cyrtonyx massena) and the linch [Peucaea cassinii). 81 Several genera of mammals, birds, aud reptiles exist iu the Texan region, which constitute its chief claim for distinction from the Louis- ianian ; these are — Mammals. Dicotyles (Jst.). Bassaris (P. Nt.). Birds. Geococcyx (P. S.). • Eeptiles. EolbrooJcia (C. S.). Phrynosoma (C. S. P.). Stenostoma (Nt. P.). None of these are peculiar: those marked (P.) being also found in the Pacific; (C.) the Central; (S.) the Sonoran; and (Nt.) the Neotropical region. Two striking species of mammals range through the Texan district, viz, the jaguar aud the peccary. V". Species confined to the Texan district—21 : Cadiieibranchiata. Amblystoma texanum. Anura. Bufo valliceps (also Mexico). Chorophilus triseriatus clarkii. Hyla carolinensis semifasciata. Eana areolata areolata. Ophidia. Crotalus adamanteus atrox. Ancistrodon piscivorus pugnax. Elaps fulvius teuer. Tantilla gracilis. Tantilla hallowellii. Tantilla nigriceps. Contia episcopa. Ophibolus doliatns anuulatus. Diadoi)his punctatus stictogenys. Coluber iindheimerii. 6 H 82 Eutaeuia marciana (extends W.). Tropidonotus clarkii. Tropidonotus sipedon woodhousei. Lacertilia. Holbrookia texana. Phrynosoma cornutum. Testudinata. Aspidonectes emoryi. VI.—THE EASTERN REGION. This fauna presents four districts, viz, the Carolinian ; the Alleghe nian ; the Canadian ; and the Hudsonian. These are distinguished by the ranges of mammals and reptiles, and the breeding-places of birds. The Carolinian fauna extends in a belt north of the Louisianian, and south of the isothermal of 71°. Its northern boundary is said to extend from Long Island, south of the hill-region of New Jersey, to the south- eastern corner of Pennsylvania, and thence inland. It embraces a wide belt in Maryland and Virginia, and all of central North Carolina, and then narrows very much in passing round south of the Alleghenies of Georgia. It extends north again, occupying East Tennessee, West Vir- ginia, Kentucky, Indiana, the greater parts of Illinois and Ohio, and the southern border of Michigan. It includes also Southern Wisconsin and Minnesota, all of Iowa, and the greater part of Missouri. The AUeghanian embraces the States north of the line just described, excepting the regions pertaining to the Canadian fauna, which I now describe. This includes Northern Maine, New Hampshire, and Vermont, with the Green Mountains ; the Adirondacks and summits of the Alleg- hany Mountains as far as Georgia. It includes Canada East and north of the lakes. The Hudsonian fauna is entirely north of the isothermal of 50°. It has great extent west of Hudson's Bay, and is narrowed southeastward to Newfoundland. VI^. Species peculiar to the Eastern region—34 : Proteida. Necturus lateralis. Caducibranchiata. Menopoma fuscum. Amblystoma bicolor. 83 Amblystoma xiphias. Amblystoma jeifersonianum. Spelerpes ruber montanus. Gyrinophilus porphyriticus. Desmognathus ochrophaea. Desmoguathus fusca fusca. Desmognathus nigra. Anura. Bufo americanus fowlerii. Chorophilus triseriatus corporalis. Hyla pickeringii. Eana palustris. Rana temporaria silvatica. Rana temporaria cantabrigensis Eana septentrionalis (nearly). Ophidia. Caudisona tergemina. Virginia valeriae. Ophibolus doliatus triangalum. Cyclophis vernalis (rare south). Coluber vulpinus. Pityophis sayi sayi. Storeria occipitomaculata. Eutaenia sirtalis ordinata. Tropidoclonium kirtlandii. Lacertilia. Eumeces anthracinus. Testudinata. Aspidonectes spinifer. Amyda mutica. Pseudemys rugosa. Chelopus guttatus. Cbelopus mublenbergii. Chelopus insculptus. Emys meleagris. 84 The Carolinian fauua is not so marked among reptiles as among birds. One genus of the former, CnemidopJiorus (swift lizard), does not range north of it, with the genera Virginia, Cyclophis, Haldea, and Pityophis among serpents. Species contined in their northern range by the same limit are — OpMbolus doUatus doliatus. Ophibolus getulus. Tropidonotus sipedon erythrogast&r, Pseudemys rugosa. Malacoclemmys palustris. Hyla andersonii. Genera of birds restricted in the same way are^ Guiraca. Helmitherus. Mimus. Polioptila. Gallinula. Herodias. Florida. Simantopus. Eeeurvirostra. The Alleghanian district includes nearly all of the remaining species of Eeptiles and several Batrachians. The genera of these which do not extend north of it are the following : Lizards. Sceloporus. Eumeces. Snakes. Carphophiops. Coluber. Cyclophis. Tropidonotus, Ophibolus. Heterodon. Gaudisona. Crotalus. Ancistrodon. 85 Batbachia. Gliorophilus. Hyla. Hemidactylium. Dismognathus. Menopoma. Necturus. The species thus restricted number twenty-six. The genera of birds which do not range north of this fauna are numerous. They are — Sialia. Vireo. Pyrmiga. Harporliynchus. Troglodytes. Cyanospiza. Pipilo. Ammodromus. Sturnella. Icterus. Zenaedura. ' Cupidonia. Ortyx. Meleagris. Ardetta. Ballus. The catamouut, red-squirrel, juinpiug-raouse, gray-rabbit, star-nosed mole, and elk, do not range south of this fauna. The Canadian fauna is distinguished for its few reptiles (there being only seven species) and Batrachia, as follows : Tortoises. Chelydra serpentina. Chelopus insculptus. Chrysemys picta. Snakes. Bascanium constrictor. Eutaenia sirtalis. DiadopMs punctatus. Storeria occipitomaculata. 86 Frogs. Bana temporaria cantahrigensis. Bana septenirionalis. Salamandees. Desmognathus ochrophaea. Desmognathus nigra. Spelerpes ruber. Spelerpes bilineatus. Spelerpes lovgicauda. This fauna extends south along the crests of the Alleghenies, where we find the catamount, snow-bird, red-squirrel, and brook-trout {Salmo fontinalis), and Desmognathus ocJirophaea, as far as Georgia. Several mammals are restricted in northward range by the boundary of this fauna; such are the buffalo, raccoon, skunk, wild-cat, panther, star-nosed mole, etc. ; and the moose, caribou, wolverine, and fisher do not range, according to J. A. Allen, south of it. VP. Species confined to the Canadian district, or nearly so : Urodela. Amblystoma jeffersonianum laterale. Anura. Bufo lentiginosus fowlerii. Rana septentrionalis. Eana temporaria cantahrigensis. In the Hudsonian district tiaere are no reptiles, and the fresh waters begin to present various new species of Salmo and Coregonus (trout and white-fish). The catamount, fisher, ermine, black-bear, red-squirrel, ground-hog, etc., do not range north of it. The following singing-birds breed there: Anthus ludovicianus. Saxicola oenanthe. Ampelis garrula. Aegiothus linaria. Flectrophanes lapponica. Plectrophanes nivalis. Flectrophanes picta. Leucostiete tephrocotis. The first and last two are the only species not also found in Europe. Numerous waders and swimming-birds breed in this region, the whole 87 number being thirty-six ; while ninety-six species of birds do not wander north of it. To this category many of the common species of the Mid- dle States belong. !N^orth of this the species of vertebrates are circumpolar or arctic. . The ichthyological fauna of the two Eastern sabregious remains to be considered. For the present, they will be united, though the distri- bution of fresh-water fishes is governed by laws similar to those con- trolling terrestrial vertebrates and other animals, in spite of the seemingly confined nature of their habitat. With this general principle in view, we may revert briefly to this distribution over this district of the IsTearctic region. This large area is characterized by the distribution of several species in all its waters, or nearly so, so far as yet exam- ined—those of Semotilus, CeraticMhys, Hypsilepis, Catostomus, etc., or by the universal recurrence of the same in suitable situations ; and by the representation of these and other genera by nearly allied species in its different portions. The fauna of the tributaries of the Mississippi constitutes, it might be said, that of our district; while the slight vari- ations presented by the Atlantic-coast streams might be regarded as exceptional. The fauna of the great lakes combines the peculiarities of both, possessing as a special peculiarity, (1), which belongs to the Lake region, which, in the district, commences at latitude 42° and extends to the Arctic regions, the range of the genus Coregonus. The peculiarity of the Atlantic subdistrict (II) may be said to be the abundance of Esox^ Salmo, and Anguilla, and the absence of Haploidonotus. The first two are abundant in the Lake region, while Anguilla and Haploidonotus have but a partial distribution there. In (HI), the Mississippi basin, Esox is represented by but few species, and remarkably few individuals. Salmo occurs abundantly in the upper parts of the Missouri tributaries, exists in the western mountain-streams of the Alleghanies, becoming rare in those of the Kanawha, and only occurring near the highest summits in those of the Tennessee, south to the line of South Carolina. It is especially characterized by the paddle-fish [Spatularia or Polyodon), the shovel-sturgeon {Scaphirhynchops), and the alligator-gar (Atractosteus) ; also by the buffalo {Bubalichthys)^ the Oycleptus, etc., among suckers, and the fork-tailed catfish (IcJitJiaelurus). Among Percomorphs, the Hap- loidonotus is the characteristic genus ; and among those allied to the herring, the genus Hyodon. Numerous species are confined to its afflu- ents. The gradation from the Mississippi grouping of species to the Atlantic is very gradual, and takes place in successional order from 88 those emptying into the Gulf of Mexico toward the east and northeast, until we reach the rivers of Massachusetts and Maine, where the great- est modification of the fauna exists. The latter fact has been pointed out by Agassiz, who calls this region a "zoological island," and enu- merates the characteristic Nearctic genera which are wanting there, i give now a list showing the points at which Mississippi genera cease, as we follow the rivers of the Gulf and Atlantic coasts, so far as our present knowledge extends. Gulf rivers : Haploidonotus has not yet been indicated from eastward of these, except in the Lake area. Boanoke : Carnpostoma ceases here. James : Micropterus and Amhloplites cease. Potomac : Pomoxys, according to Professor Baird (verb, commn.), ceases here. Susquehanna : Ceraiiehthys, Uxoglossum, Chrosomus, Carpiodes, cease. Delaware : Clinostomus, Hypsilepis analostanus, Enneacantlmis, and Lepi- dosteus cease. Hudson : ^Semo^i^ws corporai^s, according toF. W.Putnam (verb, commn.), ceases. The types remaining in the Atlantic waters of the New England dis- trict (IV) are first, then, Salmo, Esox, Anguilla, Perca ; and, secondly, the general types Boleosoma. Semotihis, Sypsilepis, Stilbe, Hybopsis {hifre- natus), Fundulus, and Amiurus ; and the Lake types Lota and Coregomis VII.—THE CENTRAL REGION. YIP. Species peculiar to the Central region—12 : Anura. Spea bombifrons. Ophidia. Ophibolus multiatratus. Eutaenia radix. Eutaenia vagrans vagrans. Eutaenia sirtalis parietalis. Lacertilia. Eumeces septentrionalis. Eumeces inoruatus. Eumeces multivirgatus. Holbrookia maculata maculata. Phrynosoma douglassii douglassii. 89 Testudinafa. Pseudeinys elegans. Chrysemys oregonensis. Cistudo oruata. VIII.—THE PACIP'IC REGrlON. VIII". Species confined to the Pacific region—44 : Urodela. Atnblystoma macrodaotylum. Aml)l> stoma paroticum. Amblystoma tenebrosum. Amblystoma ateirimnm. Dicamptodon ensatus. Batrachoseps attenuatus. Batrachoseps nigriventris. Batrachoseps paciflcus. Plethodon intermedins. Plethodon oregonensis. Anaides lugubris. Anaides ferreus. Diemyctylus torosus. Anura. Bufo halophilus. Hyla regilla. Hyla cadaverina. Spea hammondii. Rana temporaria aurora. Eana pretiosa. Ophidia. Crotalus lucifer. Contia mitis. Lodia tenuis. Pityophis catenifer. Bascanium constrictor vetustum. Eutaenia hammondii. Eutaenia elegans. Eutaenia sirtalis pickeringii. 90 Eutaenia siitalis coucinna. Eutaenia sirtalis tetrataenia. Eutaenia cooperii. Eutaenia atrata. Charina plumbea. Stenostoma humile. Lacertilia. Aniella pulchra. Eumeces skiltonianus. Xantusia vigilis. Barissia olivacea. Gerrhonotus principis. Gerrhonotus grandis. Gerrhonotus scincicaudus. Uta graciosa. Uta schottii. Phrynosoraa blainvillei. Testudinata. Chelopus marmoratus. Gerrhonotus multicarmatus is common to the Pacific and Lower Cali- fornia regions. IX.—THE SONORAN REGION. IX^. Species confined to the Sonoran region—68 : A7iura. Bufo alvarius. Bufo debilis. Bufo microscaphus. Bufo speciosus. Bufo lentiginosus frontosus. Hyla eximia. (Mexico also.) Hyla arenicolor. Scaphiopus varius rectifrenis. Scaphiopus couchii. OpMdia. Orotalus pyrrhus. Crotalus cerastes. Orotalus tigris. 91 Crotalus aclamanteus scutulatus. Orotalus molossus. Caudisoua edwardsii. Elaps euryxauthus. Chilomeniscus ephippicus. Chilomeniscus cinctus. Chiouactis occipitalis. Contia isozona. Sonora semiannulata. Gyalopium canuru. Ehinochilus lecontei. Ophibolus pyrrhomelus. Ophibolus getulus splendidus. Diadophis regalis. Hypsiglena ochrorhyncha chlorophaea. Phimothyia graham iae. Bascaniiim flagelliforme piceum. Ohilopoma rutipunctatum. Eutaenia macrostemma. Eataenia vagraus angustirostris. Tropidonotus validus validus. Tropidonotus sipedon couchii. Stenostoma dulce. LacertiUa. Eunieces obsoletus. Euraeces guttulatus. Cuemidophorus grahamii. Ciiemidophorus inornatus. Ouemidophorus octolineatus. Onemidophorus tessellatus gracilis. Cnemidophoriis tessellatus raelanostethus. Gerrlionotus nobilis. Gerrhonotus iufernalis. Heloderma suspectum. Callisaurus dracontoides ventralis. Uma notata. Sauromains ater. Crotaphytus reticulatus. TJta oruata. 92 Sceloporus oriiatns. Sceloporus jariovii. Sceloporus i)oiusettii. Sceloporus torquatus. Sceloporus couchii. Sceloporus marmoratus. Sceloporus clarkii. Phrynosoma modestum. Phrynosoma maccallii. Phrynosoma regale. Phrynosoma planiceps. Phrynosoma hernandezii. Coleonyx variegatus. Phyllodactylus tAiberculatus. Testudinata. Cinosternum sonoriense. Cinosternum henrici. Ciuosternum flavesceus. Testudo agassizii. Phrynosoma platyrhinium has as yet been observed in Nevada only. X.—THE LOWER CALIFORNIAN REGION. X*. Species peculiar to the Lower Californian region—27 : Urodela. Plethodon croceater. Anura. Hyla curta. Ophidia. Crotalus enyo. Orotalus mitchellii. Tantilla planiceps. Chilomeniscus stramineus. Ophibolus californiae. Ophibolus getulus conjunctus. Hypsiglena ochrorhyncha ochrorhyncha. Phimothyra decurtata. Pityophis vertebralis. Bascanium aurigulum. 93 Tropidonotus validus cclaeno. Oharina bottae. Lichanura trivirgata. Lichanura myriolepis. Licbanura roseofusca. Lacertilia. Pbyllodactylus unctus. Pbyllodactylus xauti. Cnemidopborus maximus. Verticaria hyperythra. Calbsaurus dracontoides. CTta tbalassina. Uta nigricauda. Sceloporus clarkii zosteroinus. Phrynosoma coronatum. Cj'clura beniilopba. XI.—RELATION OF DISTRIBUTION TO PHYSICAL CAUSES. The first observation with regard to the Batrachian and Reptilian fauna of North America is the usual one, viz, that the number of spe- cific and generic types exhibits a rapid increase as we approach ^^he tropics. Of the area inhabited by these forms of animals, less than one- fourth is included in the three Southern regions—the Austroriparian, the Sonoran, and the Lower Californian ; yet these contain more than half of the entire number of species, and all but eight of the genera are found in them. Of this number, forty-two genera, or one-third of the total, is confined to within their boundaries. It is a truism directly resulting from the very small production of animal heat by these ani- mals, that temperature, and therefore latitude, lias the greatest influ- ence on their life and distribution. This is exhibited in other ways than in multiplication of forms. It is well known, that although plainly-col- ored reptiles are not wanting in the tropics, brilliantly-colored species are much more abundant there than in temperate regions. Although the Eegnum Nearcticum does not extend into the tropics, its south- ern districts are the habitat of most of the species characterized by bright colors. This is most instructively seen in species having a wide range. Such is the case with the southern subspecies of Besmatog- nathus among salamanders, and Ryla among frogs. So with snakes of the genera Crotalus, Caudisona, Ophibolus, Bascanium, and Eutaeniu. It is 94 also true of the lizards of tbe genera Plirynosoma^ HolbrooJcia, aud See- loporus. Uutaenia and Sceloporus become metallic in tbe Mexican sub- region, as is also the case with the Anoles. The North American species of AnoUs does not display metallic luster, while a large part of those of Mexico and a smaller proportion of those of the West Indies exhibit it. Another important influence in the modification of the life in ques- tion is the amount of terrestrial and atmospheric moisture. In the case of the Batrachia, this agent is as important as that of heat, since a greater or less part of their life is, in most species, necessarily spent in the water. The reptiles are less dependent on it, but, as their food consists largely of insects, and as these in turn depend on vegetation for sustenance, the modifying influence of moisture on their habits must be very great. The Central region combines the disadvantages of low tempera- ture, due to its elevation above the level of the sea, and of arid atmos- phere ; hence its poverty in Batrachia and EeptiUa. There are but nine species of both classes peculiar to it, while a few others enter from sur- rounding areas. The distribution in the other regions is evidently dependent on the same conditions. Thus the well-watered, forest-covered Eastern and Austroriparian regions are the home of the salamanders, the frogs, the tree-toads, and the turtles. The dry and often barren Sonoran and Central regions abound in the lizards and the toads. The Pacific re- gion, which is intermediate in climatic character, exhibits a combination of the two types of life: it unites an abundant lizard-fauna with numerous frogs and salamanders, while there is but one tortoise. Another character of the reptilian life of arid regions is to be seen in a peculiarity of coloration. This, which has been already observed by the ornithologists, consists of a pallor, or arenaceous hue of the body, nearly corresponding with the tints of dry or sandy earth. This prevails throughout the Batrachia and Keptilia of the Sonoran re- gion, although it is often relieved by markings of brilliant color, of which red is much the most usual. This peculiaiity doubtless results immediately from the power of metachrosis, or color-change, possessed by all cold-blooded Vertebrata, by means of which they readily assume the color of the body on which they rest. That a prevalent color of such bodies should lead to a habit of preference for that color is neces- sary, and as such habits become automatic, the permanence of the color is naturally established. 95 Another peculiarity of the Sonoran regiou, and which it shares with a part of Mexico, is the predominance of snakes which possess an extraordinary development of the rostral shield either forward or out. ward. This has also been observed by Professor Jan, who referred such genera to a group he termed the ProhUtorMmdae, but which has not sufficient definition to be retained in the system. Of ten genera of suakes in the Nearctic region which possess the character, nine are found in the Sonoran subregion, five are peculiar to it, and it shares two with the Lower Californian subregion only. One of the latter (Phimothyra) is closely imitated by a genus [Lytorhynchus) which occurs on the borders of the African Sahara. The Heterodon of the Eastern States, though not confined to the sandy coast-regions, greatly abounds there ; and the South American species skip the forest-covered Amazon Valley and reappear on the plains of the Paraguay and Parana. As the Sonoran region embraces a number of desert areas, it is alto- gether probable that the peculiar forms in question have a direct rela- tion to the removing of dry earth and sand, in the search for concealment and food. A modification of foot-structure, supposed to have relation to the same end, is seen in the movable spines on the outer side of the foot in the genus TTma, a character exhibited in higher perfection in the South African genus Ptenopus. * The abundance of Bufones is doubtless due in j)art to their adapta- tion to life in dry regions. They are mostly furnished with tarsal bones especially developed for excavating purposes. * Proc. Acad. Phila., 1868, p. 321. BIBLIOGRAPHY Tbe present list only iuclucles tbe titles of works and memoirs which embrace discussions of systematic or distributional relations of tbe re])tiles of the Eegio jSTearctica. Those embracing descriptions of spe- cies only will be added at a future time. The subject of general geographical distribution has been especially investigated by Sclater, Huxley, and the writer; while Baird, Agassiz, LeConte, Verrill, Allen, and the writer have devoted themselves espe- cially to the distribution of the animals of the fauna Kearctica. In 1856, Dr. Hallowell remarked the rarity of salamanders and. turtles in the Sonoran region,* and Professor Baird has especially demonstrated the complementary relation exhibited in the distribution of lizards and turtles in North America. Professor Verrill and J. A. Allen have defined the faunal subdivisions of Eastern North America with great success, basing their conclusions on the distribution of birds and Mammalia. The writer subsequently defined the Sonoran and Lower Californian regions, and elevated the Austroripariau area to the same value, adopting, also, the districts of Verrill and Allen. In the present essay I am greatly indebted to the learned work of J. A. Allen for information on the distribution of birds, as well as to the previous essay of Professor Baird on the birds and mammals. A.— WorJcs on the classification of Batrachia and Beptilia. 1817. Cuvier. Eegne Animal. First edition. Paris. 1820. Merrem. Systema Amphibiorum. 1824. Wagler, in Spix Serpentes Brazilium. 1825. Latreille. Families Naturelles du Eegne Animal. Paris. 1825. Gray. Genera of Eeptiles in Anuals of Philosophy. London. 1826 (June). Fitzinger. Neue Classification der Eeptilien. *Proc. Acad. Phila., 1856, p. 309. 7 H 97 98 1826 (October). Boie, H. Erpetologie vou Java in Ferrusac's Balletin des Sciences Naturelles et Geologiques. 1827. Boie, F., in Isis vou Qkeu, p. 508. ]S30. Wagler. Natiirliches System der Amphibien. 1831. Miilier. Beitrage zur Anatomie der Amphibien, Tiedemann u Treviranus' Zeitschrift fiir Physiologic, iv, p. 199. 1832. Wiegmanu and Rathe. Handbuch der Zoologie. Berlin. 1832. Bonaparte. Saggio di una Distribuzione Metodica degli Animali Vertebrati. Eome. 1834. Dumeril et Bibron. Brp6tologie G^uerale, vol. i. General Clas- sification and Anatomy. The Testudinata. Paris. 1834. Wiegmann. Herpetologia Mexicana. Berlin. 1835. Dumeril et Bibron. Erpetologie Generale, vol. ii. Testudinata; Lacertilia, in general. 1836. Dum6ril et Bibron. Erpetologie Generale, vol. iii. Crocodilia, Chamaeleontidae, Geeconidae, Varanidae. 1837. Dum6ril et Bibron. Erpetologie Generale, vol. iv. Sauriens [Iguanidae and Agamidae). Paris. ]837. Schlegel. Essai sur le P|aysionomie des Serpens. Hague. 1839. Dum6ril et Bibron. Erpetologie Generale, vol. v. Lacertidae, Chalcididae, and Scincidae. 1841. Dumeril et Bibron. Erpetologie Generale, vol. viii. Batrachia Gymnophiona, and Anura. 1843. Fitzinger. Systema Reptilium. Vienna. 1844. Dum6ril et Bibron. Erpetologie Generale, vol. vi. Ophidia in general; Scoleoophidia and Asinea, parts. 1844. Gray. Catalogue of Tortoises, Crocodiles, and Amphisbaeuians in the British Museum. London. 1845. Gray. Catalogue of the Lizards in the British Museum. London. 1849. Gray. Catalogue of Specimens of Snakes in the British Museum. London. 1849. Baird. Revision of the i!^orth American Tailed Batrachia, etc. Journal of Academy, Philadelphia, vol. i, p. 281. 1850. Gray. Catalogue of the Specimens of Amphibia in the British Museum. London. 1853. (January). Baird and Girard. Catalogue of the Serpents ofNorth America. Washington. 1853. Dumeril. Prodrome de la Classification des Reptiles Ophidiens Institut de France 99 1854. Dumeril et Bibron. Erp6tologie G6nerale. Tome vii, part 1, OpMdta Asinea; part 2, Veuomous Serpents. Tome ix, Batra- chia Urodela. Tome x, plates. 1854. LeConte, J. Catalogueof the North American Tesi7/(?inaia. Por- ceedings of Philadelphia Academy, vol. vii. 1855. Gray. Catalogue of the Shield Eeptiles in the British Museum. London. 1857. Agassiz. Contributions to the Natural History of the United States, part ii. North American Testudinata, p. 233. 1858. Gray. On the Classification of the Old World Salamanders. Proceedings of the Zoological Society, London, p. 235. 1858. Giinther. Catalogue of the Colubrine Serpents in the British Museum. London. 1858. Giinther. Catalogue of the Batrachia Salientia in the British Museum. London. 1859. Cope. Catalogue of the Venomous Serpents. Proceedings of the Academy, Philadelphia, 1859, p; 330. 1860. Owen. Paleontology. London. (Arrangement of Extinct Eep- tiles.) 1863. Jan. Elenco Sistematico degli Ofidi Descritti e Disegnati per I'Iconografia Generale. Milan. 1864. Cope. Characters of the Higher Groups of Eeptilia Squamata. ' Proceedings of the Academy, Philadelphia, p. 224. 1864. Giinther. Eeptiles of British India. Eay Society. 1865. Cope. Sketch of the Primary Groups of Batrachia Salientia Natural History Eeview. London. 1866. Cope. On the Arciferous Anura and the Urodela. Journal of the Academy of Natural Sciences, Philadelphia. 1867. Cope. On the Families of the Eaniform Anura. Journal of the Academy, Philadelphia, p. 189. 1867. Giinther. Contribution to the Anatomy of ^<»*^ena. Philosophi- cal Transactions. 1869. Cope. Synopsis of the Extinct Batrachia, Eeptilia, and Aves of North America. Transactions of the American Philosophical Society, vol. xiv. 1869. Cope. A Eeview of the Species of Pletliodontidae and Desmogna- tliidae. Proceedings of the Academy, Philadelphia, p. 93. 1870. Cope. On the Homologies of some of the Cranial Bones of the Eeptilia, and on the Systematic Arraugemeut of the Class. Proceedings of the American Association for the Advance- ment of Science, p. 194. Cambridge. 100 1870, Gray. Supplement to the Catalogue of Shield Eeptiles in the British Museum. London. 1872. Huxley. Anatomy of the Vertebrata. London. B — Works treating of the geographical distribution of North American Batrachia and Reptilia. 1857. Agassiz. Contributions to the Natural History of the United States, vol. i, part i, p. 449. On the Geographical Distribution of North American Testudinata. 1806. Baird. The Distribution and Migration of North American Birds. American Journal of the Sciences and Arts, p. 78, 184-347 (Jan- uary). 1866. Verrill. Report of some Investigations upon the Geographical Distribution of North American Birds. Proceedings of the Bos- ton Society of Natural History, vol. x, p. 2^ (May). 1866. Cope. On the Reptilia and Batrachia of the Souoran Province of the Nearctic Region. Proceedings of the Philadelphia Acad- emy, p. 300 (October). 1869. Cope. On the Origin of Genera. Philadelphia. 1871. Allen, J. A. Bulletin of the Museum of Comparative Zoology, vol. ii. No. 3, p. 404. 1873. Cope. Gray's Atlas of the United States, p. 32. Geographical Distribution of North American Vertebrata (with map). INDEX. Page. Abastor 35 Achrochordidae , 22 Acontiidae 20 Aeris 30 Adocidae 17 Agamidae 18 Aglossa 9 AUeghauian district 84 Alligator 54 Amblystoma 25 Amblystoniidae 12, 25 Amphicoelia 14 AmphisbaeDidae 20,44 Ampbiuma 25 Ampbiumidae 12,25 Amyda 51 Auaides 28 Ancistrodon 34 Auguidae 18, 46 Aniella 44 Aniellidae .... 20,24 Auolidae 18,50 Anolis 50 Anomodontia 15 Antbracosauridae 10 Anura 7, 29 Aploaspis 33 Arcifera 9,30 Aromochelys 52 Arrangement of tbe families and bigber divisions of Batracbia and Reptilia 7 Aspidonectes 51 Asinea 21,34 Asteropbrydidae 10 Atbecae 16,50 Atractaspididae 23 Austroripariau region 68, 76 Bapbetiaae 10 Barissia 46 Bascauium 40 Batracbia 7,24 Batracbopbrynidae 9 Balracboseps 26 Belodontidae 14 Bibliograpby 97 Boidae 22,43 Brevicipitidae 8 Page. Bufo 29 Bufonidae 9, 29 Bufouiformia 9, 29 Caducibrancbiata 25 Caeciliidae 11 Callisaurus 47 Canadian fauna 85 Carolinian fauna 84 Carpbopbiops 34 Caudisona 33 Causidae 23 Cemopbora 36 Central region 71 , 88 Cbalcidae 19 Cbamaeleontidae 17 Cbarina 43 Cbeck-list oftbe species of Batracbia and Eeptilia of tbe Nearctic or Nortb American realm 24 Cbeloniidae 16,51 Cbelonia 51 Cbelopus -.. - 53 Cbelydidae 17 Cbelydra 51 Cbelydridae 16,51 Cbilomeniscus 1 35 Cbionactis 35 Cbilopoma 40 Cborophilus 30 Cbrysemys 53 Cinosteruidae 16, 52 Cinosternum 52 Cistudo 53 Cnemidopborus 45 Cocytinida,e 12 Coleonyx 50 Colosteidae 10 Colostetbidae 7 Coluber 39 Colubridae 22,34 Compsognatbidae 13 Coniopbanes 38 Contia 36 Crocodilia 14, 54 Crocodilidae 14 Crocodilus „ 54 Crotalidae.... 23,33 Crotalus 33 101 102 Page. Crotaphytus 47 Cryptodira 16, 51 Cyclophis 38 Cyclura ^ 50 Cystignathidae 9, 31 Dactylethridae 9 Dendrobatidae 8 Desmognathidae 11, 28 Diadophis 37 Dicamptodon 26 Dicynodontidae 15 Diemyctylus 28 Dimorphodontidae 12 Dinosauria 13 Diplodactylus 50 Diploglossa 46 Dipsosaurus 48 Discloglossidae 10 Dromicus 38 Ea^stern region 68, 82 Elapidae 22,34 Elaps 34 Elasmosauridae 15 Emydidae 16, 52 Emys 53 Engystoma 30 Engystomidae 8, 30 Epirhexis 31 Eumeces 44 Eutsenia 40 Eretmochelys 51 Farancia 35 Faunal regions of the earth 55 Feyliniidae 20 Firmisternia 8, 30 Floridan district 77 Ganocephala 10 Gastrechmia 8 Gecconidae 18, 50 Geographical distribution in the Kegnum Nearcticum, with special reference to the Batrachia and Eeptilia 55 Gerrhonotidae 18, 46 Gerrhonotus 46 Goniopholididae 14 Goniopoda 13 Gyalopium 36 Gymnophidia 11 Gyriuophilus 28 Eadrosauridae 14 Haldea 35 Helicops 43 Heloderma 47 Page. Helodermidae 19, 47 Hemidactylium 26 Hemiphractidae 10 Hemisidae , 8 Heterodon 43 Holbrookia 47 Homalopsidae 22 Hudsonian district 86 Hydraspididae 17 Hydrophidae 23 Hyla 30 Hylidae 10,30 Hynobiidae 11 Hypsiglena 38 Ichthyopterygia 15 Ichthyosauridae 15 Iguania 47 Iguanidae 18 Iguanodontidae 14 Introductory remarks 3 Labyriuthodontia 10 Lacertidae 19, 45 Lacertilia 17,44 Leptoglossa 44 Lichanura 43 Lichanuridae 22, 43 Lithodytes - 31 Lodia 36 Louisianian district 78 Lower Californian region... 1 74,92 Macrochelys 52 Macrollemmys 53 Manculus 27 Megalosauridae 13 Menopoma 25 Menopomidae 12, 25 Microsauria 11 Molgophidae 11 Mosasauridae ; 20 Murseuopsis 25 Najidffi " 22 Necturus . 24 Number of species 58 Nyctisaura 18, 50 Odontaglossa 9 Oligosoma 44 Ophibolus 36 Ophidia 33 Opheosauria 44 Opheosaurus 46 Ornithosauria 12 Ornithotarsidae 13 Orthopoda 13 Osceola 36 103 Page. Oudenodontidae 15 Pachyglossa 18 Pacific region ,. 72, 89 Parasuchia 14 Peliontidae 11 Pelodytidae 10 Pelomedusidae 17 Phimothyra 38 Phlegethoutiidae 11 Phryniscidoe 8 Phiynosoma 49 Pliyllodactylus 50 Pipidse 9 PityopMs 39 Placodontidae 14 Piesiosauridae 15 Plethodon 27 Pletliodontidae 12,26 Pleurodelidae 11,28 Pleurodira 17 Pleurodonta 44 Pleurosternidae 17 Podocnemididae 17 Procoelia 14 Propleuridae 16 Proteida 12,24 Proteidae 24 Proteroglypha 22, 34 Protorosauridae 15 Protostegidae 16 Pseudemys 52 Pseudobranchus 24 Pterodactylidae 13 Ptyoniidae 11 Pythonidae 21 PythoQomorpha, 20 Rana 32 Ranidae 7, 32 Raniformia 7, 32 Relation of distribution to physical causes 93 Relations to other realms 58 Reptilia 12 Rhabdosomidae 22 Rhineura 44 Rhinochilus 36 Rhinophrynidae 9 Rhiptoglossa 17 Rhynchocephalia 15 Rhynchosauridae 15 Salamandridae 11 Sauromalus..- 47 Sauropterygia 14 Page. Scaphiopidae 10, 31 Scaphiopus 31 Scelidosauridae 13 Sceloporus 48 Scincidae 19, 44 Scolecophidia 21, 44 Sepsidae 19 Sibon 38 Siren 24 Sirenidae 12, 24 Smilisca 31 Solenoglypha 23, 33 Sonora 36 Sonoran region 73, 90 Spea 31 Spelerpes 27 Sphaerodactylus 50 Sphargididae 16, 50 Sphargis 50 Spheuodontidae 15 Spilotes 39 Stegocej)hali 10 Stenostoma 44 Stenostomidae 21,44 Stereochilus 27 Sternothaeridae 17 Storeria 42 Symphypoda 13 Tantilla 35 Teidae 19,45 Teleosauridae 14 Teratosauridae 13 Testudiuata 16, 50 Testudinidae --- 16,54 Testudo 54 Texan district 80 Thalassochelys 51 The regions of the Regnum nearc- ticum 67 Thoracosauridae - 14 Thoriidae 11 Tortricidae 21 Tortricina 21 Trachystomata 12, 24 Trionychidae 16 Trimorphodon 38 Trogonophidae 20 Tropidoclonium 42 Tropidonotus 42 Tuditauidae 11 Typhlophthalmi 44 Typhlopidae 21 Uma 47 104 Page. Qrodela H Uropeltidae 21 Uta 48 Varanidae - 1^ Vertioaria 46 Viperidae 23 Virginia 35 Works on the classification of Ba- trachia and Eeptilia 97 Page. Works treating of the geographical distribution of North American Batr9,chia and Keptilia 100 Xo.ntusia 45 Xenopeltidae 21 Xenosauridae 19 Zonuridae 19 ^cparfmcnt of fhc inferior U. S. NATIONAL MUSEUM. BULLETIN UNITED STATES NATIONAL MUSEUM. ISTo. 4. PUBLISHED UNDER THE DIRECTION OF THE SMITHSONIAN INSTITUTION. WASHINGTON: GOVERNMENT PRINTING OFFICE. 1876. ADVEETISEMENT. This work is the fourth of a series of papers intended to illustrate the collections of Natural Historj' and Ethnology belonging to the United States, and constituting the National Museum, of which the Smithsonian Institution was placed in charge by the act of Congress of August 10, 1846. It has been prepared at the request of the Institution, and printed by authority of the honora.ble Secretary of the Interior. JOSEPH HENEY, Secretary Smithsonian Institution. Smithsonian Institution, Washington, February, 1876. \ BIRDS OF SOUTHWESTERN MEXICO, coll:^cted by FRANCIS E. SUMICHRAST FOR THE UNITED STATES NATIONAL MUSEUM. PREPARED liY GEORGE K LAWEENCE. WASHINGTON: GOVERNMENT PRINTING OFFICE. 1875. CATALOGUE OF BIRDS COLLECTED BY PROF. FRANCIS SUMI- CHRAST, IN SOUTHWESTERN MEXICO, AND NOW IN THE NA- TIONAL MUSEUM AT WASHINGTON, D. C. By George N. Lawrence. A few years since, an arrangement was made by Prof. Joseph Henry, Secretary of the Smithsonian Institution, with Prof. Francis Sumichrast, for an extended exploration of the Pacific side of the Isthmus of Tehuan- tepec, Southwestern Mexico, for the purpose of procuring specimens of its natural history At the request of Professor Henry, I undertook the examination of the birds contained in these collections ; and they have been forwarded to me from the Smithsonian Institution, from time to time, when received, Daring the past four years, four instalments have been sent me, con- taining 321 species, represented by more that 1,700 specimens. Circumstances occurred which prevented quite so full an exploration of the isthmus as was at first intended ; however, the specimens sent (which are of a remarkably fine character) bear testimony to Professor Sumichrast's efficiency as an industrious and energetic collector, and the many valuable notes manifest his accuracy and intelligence as an observer. In answer to a remark in one of my earlier letters to him, expressing my surprise that so few new species had been obtained, he says : " I am not astonished at the small number of new species that my first two collections contain. The region of the Pacific is comparatively much poorer than that of the Atlantic. This must be attributed to the extreme dryness of the soil 5 to the scarcity of vegetation and of insect life ; and to the duration of the winds from the northeast and southwest, which there prevail with great violence." Professor Sumichrast sent me some valuable notes on geographical distribution, which are given below. He has sent also biographies of many species, which are in their proper places in the catalogue. Finding that these biographies did not b BIKDS OF SOUTHWESTERN MEXICO. extend through all the families, I wrote him for an explanation, and got the following reply: "I regret to be unable to tell you certainly which are the biographies and notes that I forwarded to the Institution. Al- most all my books and papers were carried off in 1871 during the pillage of my house in Juchitan, and I cannot verify the dates of my invoices to the Institution." In December, 1871, Professor Sumichrast was obliged to leave Juchi- tan on account of the revolutionary state of the country, and made his residence at Santa Efigenia, which he writes me is " a hacienda thirty leagues or so south of Tehuantepec, at the foot of the Oerro de la Gineta, and on the border of the State of Chiapas." Tapana, a locality often given, he says is " a village in the neighborhood of Santa Efigenia." All communications from him are designated by quotation-marks. "NOTES ON THE GEOGRAPHICAL DIVISION OF THE BIRDS IN THE ISTH- MUS OF TEHUANTEPEC. "The contraction of the American continent between the ninety- fourth and ninety-fifth degrees of longitude west from Greenwich forms what is called, quite improperly perhaps, the Isthmus of Tehuantepec, whose width between the mouth of the Kio Coatzacoalcos and the Bay of Ventosa is about one hundred and eighty miles. " In a physical point of view, the isthmus may be considered as divided into thyee parts, first, an eastern, extending from the Gulf of Mexico to the Puerta ; secondly, a central, from the Puerta to the Chivela; and, thirdly, a western, from the Chivela to the Pacific. The eastern part, formed principally of alluvial land and watered by the Coatzacoalcos and its affluents, has its largest portion covered with thick and damp forests, whose vegetation rivals the greatest beauties of tropical nature. The central region presents an undulating surface, embossed with innu- merable lomas, or hills, which, rising gradually, unite on the western side with the mountains of the Sierra de los Mijes, and, toward the east, with those of the Sierra de Chimalapa. Although watered by numer- ous streams, it presents, nevertheless, but a scanty vegetation, essen- tially characterized by oaks on the side of Sarabbia, and palm-trees on the plateau of Chinela. The western division, or plains of the Pacific, is very dry, and its vegetable physiognomy presents a striking contrast to the rich plains on the Atlantic slope. Of the few rivers which flow through it, the most important are the Tehuantepec, Juchitan, Chicapa, and the Ostula. These are so low during part of the dry season that the inhabitants of the villages and ranchos situated on their banks have BIRDS OF SOUTHWESTERN MEXICO. 7 no driuking-water but that which they draw out of holes dug in the sand. "From that it can be easily explained how the number of animal forms, as well as the vegetable, decreases perceptibly in proportion as you advance from the Atlantic to the Pacific. " lu a zoological point of view, the preceding division into three regions is modified in this sense, that the central part or mean does not present any distinguishing forms which can characterize it. "A line drawn on the map through the villages of Santa Maria, Chima- lapa, and San Juan Guichicovi would indicate quite correctly enough the boundary-lines between the two zoological provinces or regions which divide the isthmus, and almost that of a division of the waters which flow to the Atlantic and the Pacific. Several places situated on the crest of this line present, as might be expected, a mixture of forms belonging to each littoral; thus, in the neighborhood of Barrio, Conurus aztec and petzi, Chrysotis autumnalis and alhifrons, PsilorMnus morio, and Calocittaformosa, &c., are found together. " It is to be noticed that, while the species belonging to the western province seldom or never leave it to spread in the opposite direction, several of those in the eastern province advance, on the contrary, to w^ithin a short distance of the shores of the Pacific. To quote as ex- amples : Turdus grayi, Attila citreopygia, Muscivora mexicana, Bhyncho- cyclus cinereiceps, Oncostoina cinereigulare^ GhiroxipMa linearis, Chrysotis levaillanti, Fteroglossus torquatus, Penelope purpurascens, Grax glohicera, Tinamus sallcei, &c.; all of them species whose place of development is without contradiction iu the limits of the Atlantic region, but which are found in the immediate neighborhood of the Pacific, (Santa Efigenia). " The difference in the level of the ground, which exerts elsewhere in Mexico such a great influence over the geographical distribution of ani- mal species, only exists in a slight degree in the Isthmus of Tehuantepec ; one of the culminating points of this territory, the Cerro de Mazahua, is not elevated probably more than from 500 to 2,800 feet above the level of the sea. We must not, therefore, expect to find in the isthmus prop- erly so called any of the indigenous species which elsewhere charac- terize alpine regions. The few species of that region which are found in my collections have been gathered out of the isthmus ; some in the Sierra of Oaxaca, others in the mountains of Gineta and of Zapotitlan. " If, in order to establish a sort of parallel between the two ornitho- 8 BIRDS OF SOUTHWESTERN MEXICO. logical liorizom of tbe isthmus, we seek what especially distinguishes the western province from that of the Gulf, we will find — "I. That it is less remarkable for the number of forms that belong to it than for the absence of others which predominate in the eastern part, to which they give tbeir own physiognomy, and, if I may so express it, one more essentially neotropical. " II. That it presents, in relation to the preceding, a marked numerical inferiority in the following families : Turdidce, Tanagridce, Fringillidce, Ilomotidce, Trogonidce, Eamphastidce, Picidw, Columhidce^ Perdicido!, and Tinamidw. "III. That it is remarkable for the almost entire absence of the families Dendrocolaptidce, FormicaridcB, and Pipridce. " Up to this time, I have only found two native species of Thrushes in the plains of the Pacific. The first, Turdus flavirostris, does not go southeast of the city of Tehuantepec, where it appears at distant intervals, at a period when certain fruits are ripe {Achras, Spondias, &c.) It is probable, as Professor Baird indicates (Review of North American Birds, p. 31), that its center of propagation is in the neighbor- hood of Colima. The second, Ilinius gracilis^ is very abundant on the dry plains which extend from Tehuantepec to Tonala. We can give an account, it appears to me, of the numerical inferiority of the Turdidce in the west of the isthmus by considering that Thrushes in general are more especially attached to cold and mountainous countries, and, as it has been seen, the same characteristics do not exist in the isthmus prop- erly so called. Besides, the plains of the Pacific have but a scanty vegetation, formed for the greatest part of leguminous plants, which birds whose natural diet is berries (as for example Planesticus) seek for but little. This latter circumstance explains also the absence of several genera of Tanagridw, such as Ehamphocelus, Plianicotliraupis^ Lanio, &c. " Trogon citreolus is the most common Trogon in the west of the isthmus. It is less sylvicoline than its congeners ; and the yellow color of its iris is not found, to my knowledge, in any other Trogon of Mexico. " Rampliastos carinatus belongs to the eastern part of the isthmus, in the terres chaudes. Aulacorhamphus prasinus is not found, from what I am called upon to believe, in the isthmus proper, but only in the mountainous and temperate parts, which border it on the northwest and southeast. As to Pteroglossus torquatus,! have not found it else- where than at Santa Efigeuia. " Moniotus mexkanus is the only species of the family that is resident BIRDS OF SOUTHWESTERN MEXICO. 9 in the province of the Pacific. M. lessoni and Eumomota superciliaris occasionally appear; but they are considered to be wanderers from the province of me Gulf, where Mylomanes momotula also occurs. " The resident species of Picidce, on the plains of the Pacific, are Cainpephilus guatemalensis, Dryotomus scapularis^ and Centurus aurifroyis. " The genera Geotrygon, Lepidcenas, and Talpacotia, of the eastern coast, are not found on the western shore of the isthmus. "A species of Ortyx {0. coyolcos) represents the family of the Per- dicidcB on the plains of the Pacific, which, in the eastern province, on the contrary numbers several representatives. " The specimen of Tinamus sallcei in my collection comes from Santa Efigenia, a spot which may be considered as extra-isthmique. " Notwithstanding my assiduous researches, I have been unable to meet with but a single representative of Bendrocolaptidce, Bendrornis ehurneirostris. " GhiroxipMa linearis in my collection comes from Santa Efigenia. " In exchange for the numerical inferiority in regard to the above- mentioned families, we observe a greater development in those of the Sylviidw, and perhaps also of the Tyrannidce, particularly the genera FoUoptila and Myiarclms. The eastern coast of Mexico has furnished, up to this time, but a single species of Polioptila (P. cwrulea), and, moreover, it probably only resides there in winter; on that of the Pacific we find, besides the preceding, two species with a black head, P. nigri- ceps and P. alhiloris, both indigenous. Myiarclms lawrencii is the only species of the genus which can be called common on the coast of the Gulf of Mexico. On the opposite shore, the Myiarchi are abundant, and are dispersed almost everywhere in the forests and on the plains. "The following table, although very incomplete, will give a sort of parallelism of the most characteristic species of each of the two orni- thological regions of the isthmus. "C6te orientalb. -' Turdus grayi. " Campylorliynchus zonatus. " Thryothorus macuUpectus. " Granatellus sallcei. " Hcemophila rufescens. " Cyanospiza parellina. " Cassiculus prevosti. "C6te occidentale. " Turdus flavirostris. " Campylorhynchus humilis. " Thryothorus pleurostictus. " Granatellus venustus. " Hcemophila ruficauda. " Cyanospiza leclancheri. " Cassiculus melanicterus. 10 BIRDS OF SOUTHWESTERN MEXICO. " Icterus mesomelas. " Psilorhinus morio. " Momotus lessoni. " Trogon caligatus. " Piaya cayana. " Conurus aztec. " Chrysotis autumnalis. " Ortalida vetula. " Ortyx pectoralis. " Icterus pectoralis. " Calocitta formosa. " Mofnotus mexicanus. " Trogon citreolus. " Piaya mexicana. " Conurus petzi. " Chrysotis finscM. " Ortalida poliocepliala. " Ortyx coyolcos. " The preceding remarks apply exclusively to indigenous species. It would be interesting if 1 could record here some facts relative to the distribution of the species which reside in the isthmus in the winter- season, or only during their flight; but this study would require several years of continued observations which were made simultaneously on both coasts. This part of Mexico is, moreover, less favorable than any other for observations of this kind. The shrinking of the continent, the absence of natural barriers, there make the dispersion of traveling-birds, from east to west and vice versa, very easy. Another cause, which must bring several migratory species on the shores of the Gulf of Tehuantepec in winter, is the prevalence of northeast winds in the isthmus. These winds, which blow there with extreme violence from the month of Octo- ber, undoubtedly force a large number of birds that are traveling along the Atlantic shore toward Central America to swerve from this line, and push them toward the opposite coast. An analogous cause, the prevalence of southeast winds from the month of March, that is to say, that the time that the emigrant species return to the north, operates with an inverse action, by bringing the species coming from the south along the eastern shore toward the coasts of the Gulf of Mexico. 1 will limit myself to state here the presence in winter of Dendrceca gracice in the mountains of Tehuantepec, and the extraordinary abundance at the same time of Chondestes grammaca and Euspiza americana on the plains of the Pacific. " The shores of the Gulf of Tehuantepec, or, to speak more properly, those of the salt-lakes communicating with the ocean, which extend from Ventosa nearly to Tonala, are inhabited by a great number of aquatic birds. Although belonging, for the most part, to northern spe- cies, it is probable that a large number of them make their nests there. I have found there in August, a time when the migratory birds have not BIEDS OF SOUTHWESTERN MEXICO. 11 yet made their appearance in Mexico, examples of Nutnennis, Limosa. Calidris, Ureunetes, &c. " An interesting fact to be observed is that the greater part of the Laridce which I have gathered on the shores of the Gulf of Tehuantepec are identical with those of the Atlantic. I will give as examples Chroico- cepJialus atricilla, Sterna anglica, Sterna antillarum, Hydrochelidon fissipes, and Bhynchops nigra. '' Professor Baird (Review of North American Birds, p. 267, and Dis- tribution and Migration of North American Birds) has already men- tioned, as a fact worthy of notice, the presence of the first three of these species at Mazatlan. He speaks of the S. antillarum as a winter resident at Mazatlan, Colima, and Manzauillo. It is curious that on the shores of the Gulf of Tehuantepec the opposite appears to take place. At San Mateo del Mar, a village eight leagues from Tehuantepec, I have not seen, in the months of February and December, ISro, and February, 1870, a single bird of this species {S. antillarwn) ] while in August, 1869, they appeared there in considerable numbers. The natives have assured me that in the mouth of June this Sterna makes its nest on the sand- banks which intersect the lakes in the neighborhood." • Fam. TrMDIB^. 1. €atliai*u§ occMeifitafli^, Scl. " Sierra Madre, pres Zapotitlan ; January, 1870." 2. TiirdMS iiiiastellmBS, Gm. " Tehuantepec City.'^ 3. Tufl*du§ §Tvaisi§oiBi, Cab. " Tehuantepec (Tapana) ; April 14, 1869. "Iris brown I bill black; base of lower mandible whitish ; feet pale brownish." 4. Twrdit§ ^rayi, Bp. " Tehuantepec (Santa Efigenia) ; December, 1868. " Iris brown ; bill greenish-olive ; feet livid fleshy. " I have only observed this species at Santa Efigenia, where it is not very abundant, and where its presence is explained probably by the neighborhood of the Sierra de Chimalapa." 5. Turdus llavirostris, Sw. "Tehuantepec City; November, 1869. " Iris ciunamou; bill yellowish, tip dusky; feet dull flesh-color." 12 BIRDS OF SOUTHWESTERN MEXICO. This is an abundant species in Western Mexico, to which section it seems to be restricted ; common at Mazatlan, and also obtained on the Tres Marias Islands by Colonel Grayson. 6. MelaBBotis cserHlescens (Sw.). " Sierra Madre, prds Zapotitlan ; January, 1870." 7. IffsirpoB'Iayiacliws CMrvirostris (Sw.). " Tehuacan (Puebla) ; August, 1868. " Iris orange; bill black; feet livid blue; vulgar nameCuitlacochi.'^ 8. MiMiMS poly^lottms var. caudatu§, Baird. " Tehuantepec City ; October, 1869. " Iris orange-yellow ; bill and feet black." 9. MIiMiLis gracilis, Cab. " Tehuantepec City ; October, 1869. " Iris orange-yellow ; bill and feet black." There are six specimens which I consider to be this species. They fiiffer from examples from Yucatan in being rather smaller and more slender; in having the wings and tail brownish black, and the color of the upper plumage of a brownish ash. In Y ucatan specimens, the wings and tail are deep black, and the upper parts bluish ash. These last agree closely with Cabanis's description of M. gracilis. The specimens under examination were collected in October. The differences iu color may be seasonal. Fam. SlTIiVIIB.^. 1®. folioptala caerulea, Linn. "Tehuantepec (Santa Efigenia), Juchitan; August and December, 1868. .' "Iris brown; upper mandible brownish, lower whitish; feet black. " This species, which is not uncommon in the neighborhood of Santa Efigenia, only resides there perhaps in winter, or 'during the flight. I have not seen it there since the month of March." 1 fl . Folloptila a3Ml®ri§5 Scl. *' Tehuantepec (Santa Efigenia), Tehuantepec City ; May and De- cember. " Iris dark brown ; bill black, except two-thirds of basal portion of lower mandible, which is light plumbeous ; feet plumbeous." IS. Folloptila laigriceps, Baird. " Tehuantepec (Tapana, Santa Efigenia) ; Quiotepec (Oaxaca) ; April. BIRDS OF SOUTHWESTERN MEXICO. 13 ''Iris brown; basal half of lower maudible plumbeous, upj^er mandible and tip black ; feet plumbeous. "Common almost everywhere in the west of the isthmus and in the dry and warm districts of the State of Oaxaca ; frequents the ravines and the thin woods ; goes almost always in pairs." Fam. TROGLOBYTI©^. 13. €anipyloB'liiyitchu§ zoBiatui^, Less. " Tehuantepec (Guichicovi) ; September. " Iris cinnamon-red ; upper mandible black ; lower horny ; feet yel- lowish olive." 14. CaBnpylorhyiachus joco!iu§, Scl. " Dondominguello (Oaxaca) ; August, 1868. " Iris red brown ; bill blackish ; feet dusky ash." 15. Campylorhynclius huiiillis, Scl. "Tehuantepec (Santa Efigenia); Tehuantepec City. " Iris bright brick-red ; bill blackish ; basal half of lower mandible and feet light plumbeous. " This is the most common species of the genus that I have met with on the shores of the Gulf of Tehuantepec. It advances toward the northeast to San Carlos, on the route from Tehuantepec to Oaxaca. It is a very lively bird, whose song at the time of mating is agreeable and varied ; except at this time, when it lives in pairs, it is almost always seen in small flocks." 16. Salpincfes ol>§oletus (Say). " Tehuantepec (Cacoprieto) ; June, 1872." 1 7. Cyplaofimas leiicosticf«as, Cab. " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill black ; feet dark plumbeous." 18. ThFyotliorii§ macislipectus, Lafr. " Tehuantepec (Guichicovi) ; September, 1869. "Iris brown; upper mandible black, lower horn-color; feet dark ashy-blue." 19. TIiryothorii§ pIeiaro§tictMS, Scl. "Tehuantepec (Santa Efigenia), Guichicovi, Tapana; March to October. 14 BIRDS OF SOUTHWESTERN MEXICO. " Iris brown ; upper mandible brownisb-black, lower light bluish- fleshy ; feet light-brown." "One of the indigenous birds, the most dispersed in the woody locali- ties on the west of the isthmus, and the only sylvicoline wren that I have there met with up to this time. Endowed with extreme vivacity, it is continually in motion, running along the ground and climbing the shrubs and creepers, in search of insects; and this occupation is always enlivened by the cries of pleasure or the animated trills of the male bird, which reveal his distant position in the interior of the wood. Besides, it is quite tame, and may be easily approached ; the report of a gun, even, does not appear to frighten it much. In very woody spots, several couples of them are often seen devoting themselves with ardor to the chase, or busy carrying materials destined for the construction of their nests. This nest, made with skill, is woven with dry grasses, whose stems are fine and elastic. It has the form of a retort, and is fixed horizontally around the stem of a bush, often at the fork of two branches. From the beginning of May to the middle of July, I have found these nests, containing from 3 to 5 eggs of a beautiful greenish- blue color, clear, and of a diameter of about 22 millimeters. The bottom of the nest, where the eggs rest, is lined with hairs, mingled with the fine down of certain seeds of Bomhaceesy 20. Thryotho]i[*ii§ toe^rickii var. leuco§^aster, Baird. "Puente Colorado; August, 1868. " Iris brown ; bill and feet dusky." Fam. MOTACIIililD^. 21. Antlm^ ludovicianus (Gm.). " Tehuantepec City ; November, 1869. " Bill blackish; base of lower mandible dull yellowish; feet brownish.'^ Fam. II]lI©Tir.Tfl>iE. 22. 8eiiiru^ auricapOtus (Linn.). "Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; upper mandible blackish-brown, lower and feet light- fleshy." 23. I§eiurus noTeboraceiisis (Gm.). " Tehuantepec (Tapana) ; April, 1869. "Iris brown; bill black; base of lower mandible paler; feet light- brown." BIRDS OF SOUTHWESTERN MEXICO. 15 24. Seiiirus ludoviciamis (Aud.). " Tebuantepec (Barrio, Santa Efigenia); September and January. " Iris brown ; bill blackish ; lower mandible paler ; feet pale-fleshy." 95. Maaiotilta Taria (Linn.). " Tehuantepec (Gnichicovi) ; September, 1869. "Iris brown; upper mandible black, lower fleshy; tarsi dark oli- vaceous ; toes olivaceous yellow." 26. Parula americana (Linn.). "Tehuantepec (Santa Efigenia), Tehuantepec City; October and January. " Iris brown; upper mandible brown, lower whitish-brown at tip ; feet brownish." 27. Helmiiathophasa riificapilla (Wils.). " Tehuantepec (Santa Efigenia) ; Decetnber and January. "Iris brown ; bill bluish-ash, culmen dusky; feet olive-brown." 28. Helsniiitiaophaga pere§-rina (Wils.). "Tehuantepec (Santa Efigenia); December and January. " Iris brown ; bill ashy, culmen and tip dusky ; feet dull olive." 29. ©eflidreffisca sestiva (Gm.). " Tehuantepec (Barrio, Chihuitan, Guichicovi, Santa Efigenia), Don- domiuguillo (Oaxaca); August to December, January and February. " Iris brown ; upper mandible black, lower light plumbeous ; feet light brownish-yellow." Se]iclr(Eca graciae, Coues. " Sierra Madre, prds Zapotitlan ; January, 1870." 37. Oporornis foriiiosus (Wils.). " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; upper mandible brownish-black, lower brownish-black, except at base, which, with the feet, are light fleshy." 38. Myiodioctes caerulescens (Gm.). " Tehuantepec (Barrio, Guichicovi) ; September, 1869. "Iris brown; upper mandible brownish, lower paler; feet light brownish-yellow." 39. Myiodioctes pusillus^ var. pileolatus (Pallas.). See Eidg- way, Am. Nat., 1873, p. 808. " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill brownish, lower mandible yellowish ; feet light- brown." 40. JBa§iBeutei*us rufifronis (Sw.). " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill black ; feet fleshy." 41. $etophag:a ruticilia (Linn.). " Tehuantepec (Santa Efigenia) ; April, 1871." 43. ISetophagra picta, Sw. " Chiapas (Gineta Mountains) ; January, 1869." 43. S^etophag^a miniata, Sw. " Sierra Madre, jpres Zapotitlan ; January, 1870." 44. Granatellus vemiistus, Bubus. "Tehuantepec (Santa Efigeuia); January, 1869. "Iris brown; upper mandible brownish black, lower plumbeous ashj feet dull ashy-brown." BIRDS OF SOUTHWESTERN MEXICO. 17 45. Creothlypi»$ Philadelphia var. inacg^illivrayi (A.ud.). " Tehuantepec (Cbitiuitau) ; Tehuantepec City ; November, 1868. "Iris browu J bill blackish, most of lower mandible pale; feet light flesh." 46. Icteria vireiis (Liun.). " Tehuantepec (Chihuitan, Santa Eflgenia) ; November and January. " Iris brown : upper mandible blackish, lower whitish ; feet dull ashy." Fam. HIRUHDIIVID^. 47. Prog^ne leucog^aster, Baird. " Tehuantepec (Barrio) ; October, 1868. " Iris dark-brown ; bill black ; feet brownish." 48. Hiriindo horreornm, Barton. " Tehuantepec City ; October. Tehuacan (Puebla) ; August. " Iris brown ; bill brownish-black ; feet brown." 40. Petrochelidon isivain^oni, Scl. " Tehuantepec City ; October, 1869. " Iris and bill dark-brown ; feet grayish-brown." 50. Cotyle riparia (Linn.). " Tehuantepec City ; October, 1869." Fanic VIREOIVID.*:. «51. Vireosylvia flavoviridis, Cass. "Tehuantepec (Tapana, Santa Efigenia) ; April and May. " Iris red ; bill dusky above, light ash beneath ; feet light brownish- ash." 59. Vireosylvia g'ilva var. swainsoni, Baird. > " Tehuantepec (Santa Efigenia) ; January, 1869, April, 1871." 5S. Vireo noreboracemsis (Gm.). " Tehuantepec (Santa Efigenia) ; December, 1868." 54. Vireo flavifroiis, Vieill. "Tehuantepec (Santa Efigenia); Chiapas (Gineta Mountains); De- cember and January. "Iris brown; bill bluish-ash, culraen and tip of both mandibles dusky ; feet bluish-ash." 2 18 BIRDS OF SOUTHWESTERN MEXICO. 55. f^anivireo solitarius (WHs.). "Tehuantepec (Santa Efigenia) 5 Tehuantepec City 5 Chiapas (Gineta Mountains) ; October and January. "Iris brown; bill plumbeous, culmen and tip dusky ; feet plumbeous.'^ 56. Vireo belli, And. " Tehuantepec (Santa Efigenia) ; Tehuantepec City ; October and December. " Iris brown ; upper mandible brownish, lower and feet light plum- beous." 57. Vireo liypocliryseus, Scl. " Quiotepec (Oaxaca) ; August, 1868." 58. IlylopliiIii§ deciartatus (Bonap.). " Tehuantepec (Chimaki'ia) ; March, 1869. " Iris brown ; feet light-brown." 59. €yelorlii§ flaviventriis, Lafr. "Tehuantepec (Guichicovi, Petapa) ; September, 1869. " Iris cinnamon; upper mandible light-brownish fleshy, lower bluish j feet fleshy." Fam. IjANIWJE. 60. Collurio ludoTiciauus var. excubitoroides (Sw.). " Tehuantepec City ; October, 1869. "Iris brown; bill black; base of lower mandible paler; feet dull grayish-ash." Fam. AMrFlIjTBJE. 61. Ampelis cedroruin (Yieill.). " Tehuantepec." . Fam. TAI¥AORIDiE. 63. Euphonia affinis (Less.). "Tehuantepec (Barrio); Tehuantepec City ; October, 1868. " Iris brown ; bill black, bases of both mandibles light-bluish ; feet dark lead-color." 63. Euphonia hirundinacca, Bp. "Tehuantepec (Guichicovi) ; September, 1869. "Iris brown; upper mandible and tip of lower black, rest of lower bluish ; feet ashy-plumbeous." 64. Chlorophonia occipitalis (Du Bus.). " Chiaj^as (Gineta Mountains) ; January, 1869." • BIRDS OF SOUTHWESTERN MEXICO. 19 G5. Tana§^ra abbas, Licht. " Tehuantepec (Guichicovi) ; September, 1869. "Iris brown; bill black; feet dark-plumbeous." 66. Pyrang^a aestiva (Gm.). " Tehuantepec (Ohihuitan, Santa Efigenia) ; November and January. " Iris brown ; bill light tleshy-brown ; culmen dusky ; feet brownish." There are four specimens (two of each sex), which do not differ from specimens of P. cestiva from the Atlantic States. The variety named P. cooperi by Mr. Eidgway thus appears to range farther to the north. 67. Pyrang^a hepatica, Sw. " Tehuantepec (Guichicovi) ; Chiapas (Gineta Mountains) ; September and January. " Iris brown ; bill bluish, culmen and tip of lower mandible dusky ; feet light brownish-ash." 68. Pyranga liidoTiciana (Wils.). " Tehuantepec (Ishuatlan, Santa Efigenia) ; December and January. " Iris brown ; bill yellowish, culmen dusky; feet dark ashy." 69. Phaenicothraupis rubicoides (Lafr.). " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill and feet hazel-brown." 70. Pli£enicothraupi§ Aiscicauda, Cab. " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill black, tip yellow ; feet light-brown." 71. tianio auraiitiu$$, Lafr. " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill black ; feet grayish." 73. Saltator grandiis (Licht.). " Tehuantepec (Santa Efigenia) ; January, 1869." 73. Saltator atrjcep§, Less. ' " Tehuantepec (Guichicovi, Santa Efigenia) ; September, December, and February. '• Iris brown ; bill black ; feet brownish." Fam. Flill^GILLIB^. 74. Hedymeles ludovieiaiius (Linn.). " Tehuantepec (Santa Efigenia) ; January, 1869." 20 BIBDS OF SOUTHWESTERN MEXICO 75. Cardinally TirginiaMn^ var. cariieii«, Le^s., " Huamelula." 76. Cruiraca caerulea (Linn.). " Tehuantepec (Chihuitau) ; Huitzo, near Oaxaca ; August and No- vember. " Iris brown ; bill and feet dusky." 77. Ouiraca parellina (Licht.). " Tehuantepec City, Huallago ; October and December. " Iris brown ; bill and feet grayish-brown." 78. Yolatinia jacarina (Linn.). " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown; bill black, most of lower mandible bluish; feet blackish." 79. Phonipara pusilla (Sw.). " Dondominguillo (Oaxaca) ; August, 1868. " Iris brown ; bill black ; feet light-brown." 80. €yano§piza cyanea (Linn.). " Tehuantepec (Santa Eflgenia) ; December, 1868. " Iris brown ; bill dull fleshy ; feet brownish." 81. Cyanospiza ciris (Linn.). " Tehuantepec (Santa Eflgenia) : Tehuantepec City ; November and December. " Iris brown ; bill and feet brownish." 83. Cyanospiza leclaiichcri (Lafr). " Tehuantepec (Tapana) ; Tehuantepec City ; April and October. " Iris brown ; upper mandible brown, lower fleshy ; feet brownish." S3. Cyanospiza rositae, Lawr. Ann. Lye. N. Y., vol. x, p. 397. " Tehuantepec (Cacoprieto) ; January, 1872. " Iris brown ; upper mandible blackish ; lower pale-bluish ; feet livid- plumbeous. Total length, 14 centiimefcers ; wing, 72 millimeters ; tail, 55 millimeters." Since my description of the male of this species, the missing speci- mens, fortunately, have been received. An examination of the male shows no point of difference from my description worthy of comment. There is but a single specimen of the female (the only one as yet obtained), of which a description is now given. Plumage above of a dull ochreous-brown, tinged with blue on tbo BIRDS OF SOUTHWESTERN MEXICO. 21 bead and lower back; rmiip and upper tail coverts dull light blue ; mifldle tail-feathers dull blue, the outer webs of the other tail-feathers siinilar in color, the inner webs blackish-brown 5 quill-feathers dark- brown ; the smaller wing-coverts and the outer edges of the larger quills pale-blue ; the other wing-coverts and the tertiaries have margins the color of the back ; chin grayish ; under plumage of a dull brownish rose-color, paler and clearer on the abdomen and under tail-coverts j bill and feet similar in color to those of the male. Types in National Museum, Washington, D. C. 84. Eiispiza americana (Gm.). " Tehuantepec (Juchitan, Guichicovi) ; Tehuantepec City ; Septem- ber and October. " Iris brown ; bill brownish, tinged with yellow ; feet hazel-brown." 85. Pa$$«ei*culu^ savanna var. alaudinus, Bp. '' Tehuantepec City ; November, 1869. " Iris brown ; upper mandible brownish, lower mandible and feet fleshy." 86. Zonotrichia mystacalis, Hartl. " Tehuacan (Puebla) ; August, 1868. "Iris reddish-brown; upper mandible black, lower light-blue; feet fleshy." 87. Spizella socialis (Wils.). " Chiapas (Gineta Mountains) ; January, 1869. 88. 8pizella socialis var. arizonae, Coues. " Tehuantepec (Guichicovi) ; September, 1869. "Iris brown; upper mandible brown, lower mandible lighter; feet brownish flesh." 89. 8pizella atrig^ularis, Cab. " Chapulco (Puebla) ; January, 1868. " Iris brown ; bill brownish-orange ; feet brownish." 90. Peiicasa ruficeps var. boucardi, Scl. " Puente Colorado (Puebla) ; August, 1868. " Iris brown ; upper mandible horny-brown, lower bluish ; feet fleshy." 91. €oturnicului§ pasiserinu§ (Wils.). "Tehuantepec City; November, 1869. " Iris brown ; upper mandible dusky, lower light-bluish ; feet fleshy." 22 BIRDS OF SOUTHWESTERN MEXICO. " Huiiiiielula." 9«S. Hi^iiiOB'hila rufesceiii^, Sw. " Teliuautepec (Guichicovi) ; September, 1869. " Iris browu ; upper mandible black, lower bluish ; feet dark flesh- color." 94. Hsemophila ruficauda (Bonap.). " Tehuantepec (Juchitan, Santa Efigenia) ; Tehuantepec City. " Iris light reddish-brown ; upper mandible black, lower bluish-fleshy; feet fleshy- brown." 95. HaBmophiia sumichrasti, Lawr., Ann. N. Y. Lye, vol. X, p. 6. " Tehuantepec (Juchitan) ; September, 1868. "Iris brownish-red; upper mandible blackish, lower mandible and feet fleshy." 96. Pipilo maculatus, Sw. " Cieneguilla (Oaxaca, alpine region)." 97. Pipilo albicollis^ Scl. " Huitzo, near Oaxaca ; August, 1868. " Iris brown ; upper mandible brownish, lower bluish-ash ; feet gray- ish-brown." 98. Chondestes grrammaca (Say). "Tehuantepec (Ghihuitan, Santa Efigenia); November, December, and January. " Iris brown ; bill bluish ; culmen and tip dusky ; feet fleshy." 99. Ciirjr^omitris notata (Du Bus.). " Chiapas (Gineta Mountains) ; January, 1869. "Iris brown; upper mandible blackish-brown, lower dull-ashy; feet brownish." Fam. ALArDID^. 100. Ereiuophila alpestris var. chrysolaema (Wagl.). " Tehuantepec (San Mateo) ; August, 1869. " Probably resident on the Pacific plains, where it seems to be abund- ant in July and August. BIEDS OF SOUTHWESTERN MEXICO. 23 » Fam. I€TERII>^. 101. Cas§icuUis nielauiicterus (Bp.). "Tehuantepec (Barrio.^ Chihuitan) ; Tehuantepec City; October, November, and December. " Iris brown ; bill greenish-white : feet blackish-brown. " This bird (called by the Creoles Tordo dejierro (Iron Thrush), and by the Zapoteques bigoseguiba, which has the same meaning), although proper to Western Mexico, often wanders from the coast. A few years ago I found it near Tehuacan (State of Puebla). In the isthmus it is especially abundant near Chihuitan and Huallaga. Like Cassicus pre- vosti, it has a disagreeabl-e smell, and is generally infested with vermin." lOS. Cassicus prevosti (Less.). " Tehuantepec (Guichicovi, Santa Efigenia) ; May and September. " Iris light-yellow ; bill yellowish-white; feet bluish-ash." 103. Icterus prosthemelas (Strickland). " Tehuantepec (Chihuitan) ; December, 1868." 104. Icterus melanocephalus (Wagl.). " Tehuantepec (Cuichicovi) ; September, 1869. " Iris brown ; bill black ; base of lower mandible and feet bluish-ash." 105. Icterus mesonielas (Wagl.). " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill black ; base of lower mandible and feet bluish-ash." 106. Icterus ^ularis (Wagl.). " Tehuantepec (Barrio, Chihuitan, Juchitan, Santa Efigenia). " Iris brown ; bill black, with the base of the lower mandible and feet bluish-ash." 107. Icterus pectoralis (Wagl.). " Tehuantepec (Juchitan, Santa Efigenia) ; June and September. " Iris dark-brown ; bill black ; base of lower mandible bluish ; feet bluish-ash." 108. Icterus I'ormosus, Lawr., Ann. N. Y. Lye, vol. x, p. 184. " Tehuantepec (Santa Efigenia, Juchitan) ; June, September, and December. "Iris brown; bill black; base of lower mandible and feet light- plumbeous." 24 BIRDS OF SOUTHWESTERN MEXICO. 109. Icterus spurius var. affinis, Lawr. " Tehuaiitepec (Cbihuitan, Santa Efigenia) ; Tehuantepec City. "Iris brown; upper mandible black, lower ashy-blue; feet dark ashy-blue." 110. molothrus aeneus (Wagl.). " Tehuantepec (Tapana) ; April, 1869. " Iris red ; bill and feet black." 111. ]?Iolothrus pecoris var. otiscurus (Gm.). " Tehuantepec City ; October, 1869. " Iris brown ; feet black." 113. ISturnella mag^iia var. mcxicana, Scl. " Tehuantepec (Barrio, Santa Efigenia) ; September and February* " Iris hazel-brown ; feet light fleshy-brown." 113. Quiscaluf^ maerurus, Sw. " Tehuantepec (Barrio, Juchitan) ; September and October. " Iris pale-yellow ; bill and feet black." 114. Quiscalus mexicanus, Cass. " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill and feet black ; inside of bill yellow." Fam. CORVID.1:. 11^. Cyaiiocitta coronata (Sw.). " Cieneguilla (Oaxaca, alpine region) ; August, 1868. " Iris brown ; bill and feet black." 116. Cyanocitta califoriiica var. sumichrasti, Eidg. " Nacaltepec (Oaxaca) ; August, 1868. " Iris brown ; bill and feet black." 117. Calocitta formosa (Sw.). " Tehuantepec (Juchitan) ; Tehuantepec City ; August, September,, and November. " Iris brown ; bill and feet black. " This is the most widely scattered and the greatest busybody of all the birds of the isthmus. You cannot take a step out of inhabited localities without being assailed by the vexatious scoldings of these Ghavis (that is the name which is given to them). Not content with BIRDS OF SOUTHWESTERN MEXICO. 25 hooting at you as you pass, tbey tormeut you, follow you, cross the road in front of you, and accompany these gymnastic performances by clapping their bills, by whistling, by scolding in every tone and on every key. Excessively bold, it does not fear to approach farms and feed upon the meat which is put out to dry in the sun {tasajo), in com- pany with species of Cathartes and Quiscalus. If an animal, a horse or an ox, for example, should fall exhausted from the effects of a wound, the Chavis make no scruple of attacking the wounded spot, either to carry off the pieces of flesh which are loose, or perhaps to obtain the larvae of carnivorous flies which are developed there." 118. Xanthura g^uatetnatenuis (Bp.). " Tehuantepec (Santa Efigenia) 5 December and January. " Iris yellow ; bill black ; feet ashy-blue." 119. Psjlorhinusi morio (Licht.). " Tehuantepec (Guichicovi) ; September, 1869. " Iris brown ; bill yellow ; feet black, mixed with yellow." 120. Corvus corax var. eamiTorus, Bartram. "Tehuantepec (Barrio, Tapana); April, 1869. " Iris brown ; bill and feet black." Fam. DE.lfDRO€OIiAPTID.i:. 121. Dendrornis eburneiro§tris (Sw.). " Tehuantepec (Guichicovi, Jshuatlau, Tapana, Santa Efigenia). " Iris brown ; bill whitish horn-color ; sides of upper mandible brown ish ; feet dull-olive." Fam. TYRAI%I¥IDJE. 133. Attila citi*eopy§^ius (Bp.). " Tehuantepec (Santa Efigenia) ; May, 1871. " Iris cinnamon ; bill horny ; feet plumbeous." 133. iSayomis sayus (Bp.). " Chapulco (Puebla) 5 August, 1868. " Iris brown ; bill and feet black." 134. iSayornis nig^ricaiis (Sw.). "Tanatepec." 26 I3IRDS OF SOUTHWESTERN MEXICO. 125. TodiFO!^triaiBft §chistaceiceps, Scl. "TehuRDtepec (Guichicovi) ; September, 1869. " Iris browu ; bill black, extreme tip whitish j feet light-bluish." iS6. Oncostoiiia cinerei^iilare, Scl. " Tehuantepec (Guichicovi, Cacoprieto, Tapana, Sauta Efigeuia) j April to September. '^ Iris grayish-white; bill black ; medial face of lower mandible whitish; feet fleshy." 1S7. Ornithioii incanescen!^ (Max.); (Caiiiptostoma im- bertoe, Scl., see P. Z. S., 1873, p. 577). " Tehuantepec (Santa Efigenia) ; December and January. " Iris brown ; bill black ; base of lower mandible yellowish ; feet blackish-ash ; commissure and mouth orange." 128. JHyiozetetes texens^is (Giraud). " Tehuantepec (Juchitan, Barrio, Chihuitan, Santa Efigenia). " Iris brown ; bill and feet black." 139. Rhynchocyclus cinereiceps (Scl.), " Tehuantepec (Tapana, Santa Efigenia) ; January to May. " Iris pearl-gray ; upper mandible blackish ; lower mandible and feet dull flesh-color ; interior of mouth black." 130. Pitan^us derbianus (Kaup). " Tehuantepec (Ohihuitau, Tapana, Santa Efigenia). " Iris brown ; bill and feet black." 131. jflyiodynastes luteiveiitris, Bp. " Tehuantepec (Tapana) ; April, 1869. " Iris brown ; bill black ; extreme base of lower mandible dull-fleshy; feet dark brownish-ash." 133. ITIegarhyiichus niexicanus (Lafr.). " Tehuantepec (Guichicovi, Chihuitan, Santa Efigenia). " Iris brown ; bill and feet black." 133. IIu§ciYora mexicana, Scl. " Tehuantepec (Tapana, Santa Efigenia) ; June and December. " Iris brown ; bill black ; central part of lower mandible yellowish ; feet fleshy-yellow." BIRDS OF SOUTHWESTERN MEXICO. 27 134. Pyrocephaltis riibineus var. inexicanus, Scl. " TehaaDtepec (Santa Eflgenia) ; Tchuantepec City. " Iris brown ; bill and feet black." tS5. Enipidonax iniiiimiii^ (Baird). " Tehuantepec (Ohihuitan, Santa Eflgenia, Tapana, Guichicovi) 5 Te- huautepec City ; Chiapas (Gineta Mountains). " Iris brown ; upper mandible brownish-black, lower dull-fleshy 5 feet black." 136. Empidonax flaTiventris (Baird). " Tehuantepec (Guichicovi, Santa Eflgenia) ; December and January. " Iris brown ; uijper mandible brownish-black, lower yellowish ; feet blackish." 137. £iiipidonax traillii var. piisillus (Sw. et Rich.). "Tehuantepec City; October, 1869. "Iris brown ; upper mandible black, lower light-brownish ; feet black." 138. Empidonax liainmondi (De Yesey). " Chiapas (Gineta Mountains) ; January, 1869. " Iris brown 5 upper mandible blackish, lower light-brownish ; feet black." 139. Coiitopus borealis (Sw.). " Tehuantepec (Icacoprieto) ; September, 1872." 140. €oiitopu^ pertinax, Cab. et Heine. " Chiapas (Gineta Mountains) ; January, 1869." 141. Coiitopus Tireiis (Linn.). " Tehuantepec (Tapana) ; April and May. " Iris brown 5 upper mandible black, lower dull-yellow j feet black." 14S. Coiitopii§ virens var. richardsonii (Sw.). " Tehuantepec (Tapana) ; Tehuantepec City ; April, May, and October. " Iris brown ; upper mandible black, basal half of lower brownish- yellow ; feet black." 143. ]?Iyiarchiis crinitus (Linn.). " Tehuantepec City 5 October, 1869. " Iris brown ; bill black, lighter at the base of lower mandible j feet blackish." 28 BIRDS OF SOUTHWESTERN MKXICO. 144. Hyiarcliws crmititis var. cooperi (Kaup). " Tehuantepec (Tapana, Sauta Etigeuia) 5 April and December. " Iris brown ; bill black ; feet dark ashy-brown." 145. JHyiarchus cinerascens (Lawr.). " Tehuantepec (Tapana, Santa Efigenia) ; Tehuantepec City ; Chiapas (Gineta Mountains) ; April, October, November, and January, " Iris brown ; bill black; extreme base of lower mandible dull-fleshy; feet blackish." 146. Myiarchws lai^rencea (Giraud). " Tehuantepec (Santa Efigenia) ; Dondominguillo (Oaxaca)." 147. IVIyiarchus flaiiiiiiiilatus, Lawr., Ann. Lye. N. Y., vol. xi, p. 7L " Tehuantepec (Cacoprieto) ; June, 1872." 148. Tyrannus melancliolicuis var. satrapa (Licht.). " Tehuantepec (Chihuitan, Tapana, Barrio); Dondominguillo (Oaxaca). " Iris dark-brown ; bill black ; feet brownish." 149. Tyraiinus cra§§Jrostris, Sw. "Tehuantepec (Chihuitan) ; Los Cues (Oaxaca). " Iris dark-brown ; bill and feet blackish." 150. Tyrannus carolinen^is (Gm.). " Tehuantepec (Tapana) ; May, 1869. " Iris brown ; bill black ; feet dark-plumbeous." 151. IVIilviilu!^ forficatus (Gm.). "Tehuantepec (Chihuitan) ; Tehuantepec City. " Iris brown ; upper mandible blackish, lower paler ; feet brown.'' Fain. COTIIVCJID^. 152. Tityra per§onata, Jard. and Selb. " Tehuantepec (Tapana, Santa Etigenia) ; March, April, and January. " Iris dull cinnamon-red ; bill black at end for half its length ; basal half of bill, lores, and orbits pale-carmine ; feet ashy-brown." 153. HadrostoiiiiD^ ag^laise (Lafr.). " Dondominguillo (Oaxaca) ; August, 1868. " Iris brown ; upper mandible blackish, lower bluish horn-color; feet ashy-blue." BIRDS OF SOUTHWESTERN MEXICO. 29 Fam. PIPRID^. 1^4. Chiroxiphia linearis (Bonap.'- " Tehuantepec (Tapana) ; June, 1869. " Iris dark-brown ; bill black ; feet orange. " This Manakin, the only one that I have found in the western part of the isthmus, dwells only in certain localities, thickly wooded, at the foot of the Cordilleras, on the banks of streams, and still it is only in the solitary ravines and the most shady nooks that they need be looked for. Very difficult to discover at any other time in the midst of the thick forests that they choose for their dwelling, their retreat is easily dis- covered in the breeding-season by the loud and continuous cries made by the males during the greater part of the day. Two males are almost always found together, perched side by side on the same branch ; a curious fact which I have a long time wondered at, but the following observation enlightened me. A female, pluming herself, is perched a^ few steps away from these two gallants, who, anxious to please her, begin a loving joust the most diverting, ascending and descending with their wings half-closed, their feathers disheveled, and their throats inflated with pleasure and the effort of singing. This continues some- times for more than a quarter of an hour, and recommences after a few minutes' rest, during which the female shows her pleasure by the trembling of her body and the fluttering of her wings. IS'othing can be more graceful than this picture when a ray of sunlight, piercing the dark vault of the forest, enlivens the scene and brings out the bright tints of black velvet, of azure and purple that adorn the coats of these little feathered actors. With an excessive natural confidence, the 'Chiroxiphia allow themselves to be approached very near without showing any fear, and the sound of a gun hardly frightens them." Fam. iTIO]?IOTlI>iE. \55. Moniotus lessoiii, Less. " Tehuantepec (Guichicovi, Chimalapa) ; March and September. " Iris red ; bill black ; feet blackish." 156. jflonnotus mexicanus (Sw.). " Tehuantepec (Chihuitan, Barrio, Santa Efigenia) ; Los Cues (Oaxaca) ; August to December. " Iris red ; bill black ; base of lower mandible whitish horn-color feet dull- cinereous. 30 BIRDS OF SOUTHWESTERN MEXICO. ''This is very common in all the western regions of the isthmus from Barrio to the Pacific, It comes from there through the State of Oaxaca to Tehuacan (Puebla), where it is not rare. It is almost univ^ersally called guarda-harranca or garde ravin, because it generally lives in ravines, and digs its nest along the sides." 1^7. Sumoniota supercili»ris (Sandb.)- " Tehuantepee (Tapana, Cacoprieto) ; April and May. " Iris dark-brown ; bill black ; feet grayish-black." Fam. AL.CEDI1\II>.E. 158. Ceryle torquata (Linn.). " Tehuantepec (Ghihuitan, Santa Efigenia) ; November and December. "Iris dark-brown; bill black; base of both mandibles grayish ; feet light olive-green." 159. Ceryle alcyoii (Linn.). " Tehuantepec (Santa Efigenia) ; December, 1868. " Iris dark-brown ; bill black, basal half of lower mandible whitish horn-color ; feet dusky." 160. Ceryle amazona (Lath.). "Tehuantepec (Ghihuitan, Santa Efigenia); November, December, and January. " Iris dark-brown ; bill and feet black." 161. Ceryle americana var. cabanisi, Tsch. Tehuantepec (Ghihuitan, Santa Efigenia) ; November, Decemb^, and January." 162. Ceryle supercilioisa (Linn.). " Tehuantepec (Santa Efigenia) ; April, 1871, "Iris brownish-black; bill black; base of lower mandible fleshy; feet dark-brown." Fam. BIJCCOT¥ID^. 163. Bucco dysoni, Gray. " Tehuantepec (Santa Efigenia) ; May, 1871. " Iris dark purplish-red ; feet dull-plumbeous ; bill black." BIEDS OF SOUTHWESTEEN MEXICO. 31 Fam. TM®CJ©1VII>JE. 164. Trogon puella, Gould. •' TehuaDtepec (Guichicovi, Ghiraalapa) ; March and September. " Iris brown ; bill yellow ; feet yellowish." 165. Tro^on braccatus, Cab. et Heine. " Tehuantepec (Guichicovi) ; September, 1869. " Iris dark-brown ; bill ashy-blue ; orbits yellow ; feet plumbeous." 166- Trogon citreoliis, Gould. " Tehuantepec (Chihuitan, Ventosa, Tapana, Santa Efigenia). " Iris yellow ; eyelids violet-blue ; bill bluish-ash ; feet cinereous." Fam. CAFRimULGIDJB. 167. Chordeiles texen^is, Lawr. " Tehuantepec (San Mateo, Santa Efigenia) ; August and January, . 1869. ^' Iris dark-brown ; bill brownish; feet dull-brown. "At Santa Efigenia, where I killed most of the specimens of this Kight-hawk, they live during the day hidden at the foot of mountain in woods and thickets. They come out a short time after sunset, and then appear in great numbers above inundated places and savannas. Their flight is easy and graceful ; but it is quite difficult to shoot them, because they easily escape from sight on account of their dark color and the feeble light of the twilight." 168. Antrostomus vociferus (Wils.). " Tehuantepec City ; November, 1869." 169. IVyctidromus albicoUiis (Gm.). " Tehuantepec (Chihuitan, Santa Efigenia) ; November, December, and January. " Iris dark-brown ; bill pale-brown, tip dusky ; feet dull-fleshy. " This species is very common in all the warm and temperate lands of Southern Mexico, where it is known under the name of Tapas camina {conore cliemin) or Ataja camina [qui embarrasse le cliemin), derived from the custom it has of lying flat on the roads. Its cry, which is of two kinds, may be expressed by the syllable piou -piou - piou - piou— pu - e - i - ou. The latter part, uttered with force, is probably a cry of appeal (or challenge). The second, which it repeats from time to time, is shorter, ou - i - iouJ^ 32 BIRDS OF SOUTHWESTERN MEXICO. 170. nrycfifoiMs jaiiiaicefii$$is (Gm.). " Tehnantepec (Santa Efigenia)." Fam. CYPSEI^ID^. 171. Chsetiira vauxii (Towns.). " Tehnantepec (Guichicovi) ; September, 1869, " Iris dark brown ; bill black 5 feet blackish." Fam. TUOCniliJlBM. 179. Campyloptcrus hemileucuruis (Licht.). " Chiapas (Gineta Mountains) 5 January, 1869." 173. liampornis prevosfi (Less.). " Tehuantepec (Santa Efigenia) ; December, January, and February. " Iris dark brown ; bill and feet black." 174. Trocliilu8 colubris, Linn. " Tehuantepec (Santa Efigenia) ; Tehuantepec City ; October, Novem- l)er, and December. " Iris brown ; bill and feet black." 17^. Helioneiaster pallidicep^ii, Gould. " Tehuantepec (Santa Efigenia) ; December and January." 176. Helioiuaster leocadia (Bourc). " Tehuantepec City ; October and November, 1869. " Iris, bill, and feet black." 177. Heliomaster con^tanti (Delatt.). ^^ " Chiapas (Gineta Mountains) ; January, 1869." 1 78. Cyanomia cyanocephala (Less.). " Tehuantepe«« (Guichicovi) j September and January. "Iris black; upper mandible black, lower bright carmine, with the tip black ; feet black." 179. Cyanomia violiceps (Gould). "Tehuantepec (Tapana, Santa Efigenia); May, December, and Jan uary. " Iris brown ; bill rosy-red, tip black ; feet plumbeous." 180. Pyrrhoph^Bna cinnamomea (Less.). " Tehuantepec (Santa Efigenia) ; December and January. " Iris black; bill bright carmine red, tip black." BIRDS OF SOUTHWESTERN MEXICO. 33 181, PyFrlaopEi^Bia devBlflei (Bourc.)- " Chiapas (Gineta Mountains) ; January, 1869." 183. PyrnrhophaEiaa rieMferi (Bourc). "Tebuantepec (Guichicovi) 5 September, 1869." 185. TlfiatimatBas caDididM§ (Bourc. et Muls.). " Teliuantepec (Guichicovi) 5 September, 1869. " Iris black 5 upper mandible black, lower light carmine, with the tip black ; feet black." 184. Circe douMedayi (Bourc). "Tehuantepec (Chihuitan); November, 1868." A single specimen of this rare species is iu the collection, and the only one I have ever seen. Mr. Gould, in his monograph of TrocMUdce, says but two specimens were known. Since that time, however, others may have been obtained. I wrote two years since to Professor Sumi- chrast to endeavor to procure more examples, but he has not as yet been able to do so. Its locality is now determined, wl ich, at the time it was described by Mr. Bourcier, was thought to be the "Eio Negro," though Mr. Gould states that his specimen was marked as from "Chi- mantla, Mexico," which he thought was correct, as its allies, "with obscure tippings to their tails, such as latirostris, caniveti, auricens, &c, were denizens of that country." 18^. ChloFolampi^ caiiaveti (Less.). " Tehuantepec (Guichicovi) ; September, 1869. " Iris and feet black ; basal two-thirds of bill carmine-red, terminal third black." FaiM. CUCUIilDJE. 186. Cr®t®phaga §Hlcir®strls, Sw. "Tehuantepec (Juchitan); September, 1868. " Iris dark brown ; bill and feet black." 187. DIplopteFUs mjKviM§ (Linn.). " Tehuantepec (Santa Efigenia)." 188. Fiaya cayana (Linn.). "Tehuantepec (Chihuitan, Barrio) ; September and November. "Iris red; bill, lores, and orbits light olive-green ; feet bluish-ash." 189. Piaya iridibBiB^d«i§ (Gm.). " Tehuantepec City." 3 34 BIRDS OF SOUTHWESTERN MEXICO. 19®. M®r«coccyx crythropy§ia (Less.). " Tehuantepec (Chihuitan), Tehuantepec City ; October and Decem- ber. "Iris brown 5 bill orange-brown; culmen blackisli; orbital skin green- ish-yellow before the eye and azure-blue behind the eye ; feet dull fleshy. " Similar to Geococcyx mexicanus in its terrestrial habits. Indeed, it never alights except on the lowest bushes ; woody places, les hejucales (places full of entangled creepers), and hedges are its favorite spots. It runs very quickly, and easily escapes from sight. Its flesh, like that of the Geococcyx, has an unsavory and disagreeable odor." 191. CJeococcyx iBaexicaeiMs (Gm.). " Tehuantepec (Juchitau) ; August and September. " Iris brown, separated from the pupil by a narrow golden ring ; orbital skin blue and red ; bill bluish-gray, culmen dusky ; feet livid- bluish. " This bird, quite common in the west of the isthmus, there bears the name of Corre-camino (Spanish) or Cere-quidja (Zapotique)." Fam. RAMPMASTlBiE. 19S. Ftero§^lo§sMs torquatos (Gm.). " Tehuantepec (Santa Efigenia) ; January and March. " Iris yellow ; orbital skin red ; feet greenish-olive. " Common in the woods at the foot of the Cordilleras at Santa Efige- nia, at Tapana, at Tanatepec, &c. I have been told that Baniphastos carinatus is found at times in the same localities. I have not there met with it." V 193. CampeplailMS giiateiiialeii§is (Hartl.). "Tehuantepec (Chihuitan), Tehuantepec City; November and De- cember. " Iris light yellow ; bill horny-white ; feet ashy." 194. S>ry©c©pws scapMBari§ (Vig.) " Tehuantepec (Chihuitan, Santa Efiigenia) ; November and December. " Iris white ; bill white ; feet dark ashy-blue." 19tl. PiCMs scalaris, Wagl. " Puente, Colorado (Puebla) ; August, 1868. " Iris brown ; bill blackish ; feet greenish." BIRDS OF SOUTHWESTERN MEXICO. 35' I ©6. §p!iyB'apihave been una- ble as yet to procure specimens of it. I have only seen it in captivity." 2© 7. CIftBcysoti§ awr®palliata (Less.). " Tehuantepec (Santa Efigenia) ; May, 1871. " Iris orange-red ; bill blackish ; cere black; feet grayish." SOS. Chrysotis levaillanatii. Gray. " Tehuantepec (Barrio, Petapa) ; October, 1868. " Iris orange; bill and feet dirty white." S09. Clarysotis autuiainalis (Linn.). " Tehuantepec (Barrio) ; September, 1868. "Iris orange-yellow; bill dull yellowish, blackish along the cutting- edges ; feet light greenish-ash." BIRDS OF SOUTHWESTERN MEXICO. 37 @fl®. Cliry§®ti§ altoii*r®ii§, Sparrm. "Tebuantepec (Chihuitan, Juchitan); Tehuantepec City; October and November. " Iris yellowish-white; bill light yellow; cere and feet dull white." ^11. Chryi^otis fiiischi, Scl. "Tehuantepec City; October, 1869. " Iris orange ; bill dirty-white ; feet light gray." '212, ^laaacidiuifii lei'Fu^Ifiiiuiii (Max.). "Tehuantepec (Santa Efigenia); Tehuantepec City; Chiapas (Gineta Mountains); October, January, and March. "Iris yellow; bill, cere, and feet greenish yellow." Si«l. ^SaascidiMBM g^iaoma (Wagl.). "Tehuantepec (Tapana); Tehuantepec City; May and October. " Iris yellow ; bill, cere, and feet greenish-yellow." S14. Speotyt© cisBiicMfiaria var. hypogeea (Bp.). " Tehuantepec (Juchitan) ; January, 1870." 215. Miiho vIs'g'fleiaBMis (Gm.). " Tehuantepec City ; October, 1869. "Iris yellow ; bill blackish ; feet dull grayish; nails blackish." 91®. Ciccaba EaigroSiBaeata, Scl. " Tehuantepec City." 917. Clccal^a §qiBaBBmlata (Licht.). " Tehuantepec City ; November, 1869." Upper plumage dark brown, mottled with pale rufous; head, neck, and upper part of back rather sparsely marked with small fulvous- white spots ; tail blackish-brown, crossed with six white bars, which are more or less clouded with light brown, ends of tail-feathers white ; quills blackish-brown, with faint lighter bars on the inner webs and pale ful- vous bars on the outer ; inner webs of secondaries clear, very pale ful- vous; under lining of wings dark reddish-fulvous; larger wing-coverts ending with reddish-fulvous; under surface white, tinged with fulvous, the feathers marked with conspicuous shaft-stripes of clear dark brown ; sides and thighs of a light clear fulvous; bill dusky horn color, the end light yellow ; toes brownish-yellow. Length (skin), 14^ inches; wing, 9^; tail, 6i; tarsi, 2i. 38 BIRDS OF SOUTHWESTERN MEXICO. I feel confident of being correct in referring the bird before me to Syrnium squamulatum, and thereby establishing its validity. By late writers, it has been considered identical with /S*. virgatum, Cass. This spec- imen is clearly distinct from Mr. Cassin's species, in which the coloring is much darker throughout, having the throat and breast of a dark brown, which in ;S^. squamulatum are white ; the light markings ou the upper plumage of 8. virgatum are rufous and in wavy lines, not, as in the other, in distinct whitish spots ; the sides are dull fulvous ; the thighs dark reddish-fulvous, with irregular narrow brownish bars ; in S. squor mulatum the thighs are of a very pale clear fulvous and immaculate. There are but five bars on the tail of 8. virgatum, the other having six. The two species do not differ materially in measurements, except that the tarsi of S. squamulatum are much longer. The only description I have found of this species is by Bonaparte (Cons. Av. i, p. 53), with which the specimen under examination agrees closely. Bonaparte was not acquainted with S. virgatum, but probably noticed in Mr. Cassin's description some similarity to that of S. squamu- latum, as he has, I. c, " Quid Syrnitim virgatum, Cass." 218. Fwlsatrix t®r