SMITHSONIAN INSTITUTIONUNITED STATES NATIONAL MUSEUMBulletin 100VOLUME 14, PART 4CONTRIBUTIONS TO THE BIOLOGY OF THEPHILIPPINE ARCHIPELAGO ANDADJACENT REGIONS
COPEPODS GATHERED BY THE UNITED STATESFISHERIES STEAMER "ALBATROSS" FROM 1887TO 1909, CHIEFLY IN THE PACIFIC OCEAN
BYCHARLES BRANCH WILSON
UNITED STATESGOVERNMENT PRINTING OFFICEWASHINGTON : 1950
For sale bv the Superintendent cf Documents, U. S. Government. Printing Office Washington 25, D. C.Price $1.00

CONTENTS
PageForeword viiIntroduction 141Completion of specific characters 142Other comparable collections 143Systematic references 145The number of species 146Nets and methods of collection 146General conclusions 147The species collected 151Genus Acartia Dana 151Genus Acrocalanus Giesbrecht 157Genus Aegisthus Giesbrecht 158Genus Aetideus Brady 159Genus Amallophora T. Scott 159Genus Amallothrix Sars 159Genus Amenophia Boeck 163Genus Anomalocera Templeton 163Genus Arietellus Giesbrecht 165Genus Augaptilus Giesbrecht 170Genus Bathycalanus Sars 171Genus Bathypontia Sars 171Genus Bradyidius Giesbrecht 172Genus Calanoides Brady 174Genus Calanopia Dana 174Genus Calanus Leach 177Genus Caligus Miiller 178Genus Calocalanus Giesbrecht 179Genus Candacia Dana 180Genus Canthocalanus A. Scott 184Genus Centraugaptilus Sars 185Genus Centropages Kr0yer 185Genus Cephalophanes Sars 188Genus Chiridiella Sars 188Genus Chiridius Giesbrecht 189Genus Chirundina Giesbrecht 189Genus Clausocalanus Giesbrecht 190Genus Clytemnestra Dana 190Genus Conaea Giesbrecht 191Genus Copilia Dana 191Genus Cornucalanus Wolfenden 192Genus Corycaeus Dana 192Genus Cryptopontius Giesbrecht 197Genus Cymbasoma I. C. Thompson 197Genus Dactylopusia Norman 198Genus Disseta Giesbrecht 198Genus Drepanopus Brady 200Genus Dysgamus Steenstrup and Liitken 201ni
IV BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMThe species collected?Continued PageGenus Ectinosoma Boeck 202Genus Euaetideus Sars 202Genus Euaugaptilus Sars 204Genus Eucalanus Dana 207Genus Euchaeta Philippi 211Genus Euchirella Giesbrecht 218Genus Farrania Sars 226Genus Farranula Wilson 227Genus Gaetanus Giesbrecht 229Genus Gaidius Giesbrecht 233Genus Gaussia Wolfenden 235Genus Haloptilus Giesbrecht 235Genus Harpacticus Milne Edwards 237Genus Hemirhabdus Wolfenden 238Genus Heteramalla Sars 238Genus Heteroptilus Sars 238Genus Heterorhabdus Giesbrecht 239Genus Heterostylites Sars 241Genus Isochaeta Giesbrecht 241Genus Labidocera Lubbock 241Genus Lepeophtheirus Nordmann 250Genus Lophothrix Giesbrecht 250Genus Lubbockia Claus 254Genus Lucicutia Giesbrecht 254Genus Macandrewella A. Scott 257Genus Macrosetella A. Scott 262Genus Mecynocera I. C. Thompson 262Genus Megacalanus Wolfenden 262Genus Mesorhabdus Sars 263Genus Metridia Boeck 263Genus Microsetclla Brady and Robertson 266Genus Miracia Dana 266Genus Monacilla Sars 266Genus Monstrilla Dana 267Genus Mormonilla Giesbrecht 268Genus Nannocalanus Sars 268Genus Neocalamis Sars 269Genus Oculosetella Dahl 269Genus Oiihoaa Baird 270Genus OitJtonina Sars 271Genus Oncaea Philippi 271Genus Onchocalanus Sars 273Genus Pachos Stebbing 274Genus Pachyptilus Sars 274Genus Paracalavus Boeck 275Genus Paraugaptilus Wolfenden 275Genus Parcuchacta A. Scott 276Genus Paroithona Farran 285Genus Pennella Oken 285Genus Phaenna Claus 285Genus PhyUopus Brady 286Genus Pleuromamma Giesbrecht 2S9
CONTENTS VThe species collected?Continued PageGenus Pontella Dana 290Genus Pontellina Dana 303Genus Pordellopsis Brady _ _ ? 303Genus Pontophlus Sars 314Genus Pseudanthessius Claus 315Genus Pseudeuchaeta Sars 316Genus Pseudocalanus Boeck 316Genus Pseudochirella Sars 317Genus Pseudophaenna Claus 318Genus Ratania Giesbrecht 318Genus Rhincalanus Dana 318Genus Robertsonia Brady 319Genus Sapphirina J. V. Thompson 319Genus Scaphoralanvs Sars 324Genus Scolecithricella Sars 331Genus Scolecithrix Brady 335Genus Scolecocalanus Farran 336Genus Scottocalanus Sars 337Genus Spinocalanus Giesbrecht 341Genus Stephos T. Scott 341Genus Temora Baird 342Genus Temorites Sars 343Genus Tigriopus Norman 344Genus Tortanus Giesbrecht 345Genus Undeuchaeta Giesbrecht 347Genus Undinula A. Scott 348Genus Valdiviella Steuer 350Genus Veltoria Wilson 351Genus Xanlhocalanus Giesbrecht 351List of new species described in this paper 351Lists of copepods collected, arranged by stations 352A. Surface tow-net stations, 1887-1888 352B. Tanner intermediate tow-net stations, 1893 [1894] 358C. Townsend intermediate and surface tow-net stations, 1895 360D. Dredging and trawling stations, 1884-1909 364E. Hydrographic stations, 1889 and 1891 423F. Unnumbered localities 429Literature cited 433

FOREWORDDr. Charles Branch Wilson, author of this work, died on August18, 1941. A brief obituary was published in Science, volume 94, pages358-359, October 17, 1941. More intimate biographical notes formed amemorial supplement to the Westfield, Mass., High School Herald,volume 54, No. 1, October 17, 1941; the subject of an obituary note inThe Colby Alumnus, volume 31, No. 2, pages 21-22, November 15, 1941
;
and a biographical note in the National Cyclopedia of AmericanBiography, by Dr. Wilson's son, Carroll A. Wilson.Inasmuch as the manuscript of this paper was not given editorialattention while Dr. Wilson was still living, special pains have beentaken to check references, occurrences, station records, and lists ofspecies collected. In this task I was assisted by Miss Lucile McCain, ofthe office of the head curator of zoology, United States National Mu-seum, who also prepared the list of literature cited ; by Mrs. Mildred S.Wilson, 1 formerly assistant curator of the Museum's division of marineinvertebrates, who checked parts of the collection and verified certainidentifications ; and by Miss Gladys O. Visel, of the editorial divisionof the Smithsonian Institution. Such notes, emendations, and correc-tions as I have made, other than this foreword, are generally followedby the initials W. L. S. and are usually enclosed in brackets. Notessupplied by Mrs. Wilson have been similarly dealt with and are ini-tialed M. S. W. Mrs. Wilson also contributed the references made totwo important works by R. B. Seymour Sewell (1913 ; 1929, 1932) deal-ing with the copepod fauna of the Indian seas that apparently escapedDr. Wilson's attention. Sewell anticipated several of Dr. Wilson'sfirst Pacific records for certain Atlantic species.The manuscript as received from Dr. Wilson contained no referencesto original descriptions of species or a list of literature cited. Theseomissions were supplied here at the National Museum. Besides pre-paring the "Literature Cited," Miss McCain checked the citationsagainst the original publications in every instance where these wereobtainable in this country.Because of their pertinency, Dr. Wilson included his identificationsof the copepods from several Pacific stations occupied by AlexanderAgassiz in November and December 1897, while cruising through theFiji Islands aboard the Yaralla (cf. List of Copepods Collected,p. 429) . Also included are two species not collected by the Albatross,as well as non-Albatross material of a third species that Dr. Wilson
1 Mrs. Charles Sawyer Wilson, not related to Dr. Charles Branch Wilson. vti
VIII BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMfound expedient to publish in this report. The first two are Acartiatumida Willey (p. 155) and Tigriopus incertus Smirnov (p. 344) ; thethird is Augaptilus glacialis Sars (p. 170) . Figures 311-316 and 318-322 (pi. 22), together with the accompanying text, have been omitted,for while they represent two species of fresh-water copepods collectedby Dr. Wilson they are not properly part of this report on marineplankton, nor are they a part of the Albatross collections. Figures18, 19, 20, 205, 206, 222, 266, 270, 420, 440, 444, 489, and 538, were foundto be incorrect in certain particulars, and a few of these have beendeleted. Seven species, represented among unrecorded lots of mate-rial that Dr. Wilson had determined and labeled, for some reasonfailed of mention in the text of his manuscript. These are entered inalphabetical sequence in the discussion of the species, together withthe number of the station from which he recorded them and bracketedcomment. They are, with the National Museum catalog numbers, thefollowing: Bradyidius-armatus (78848), Drepanopus forcipatus(79441), Haloptilus bulliceps (73928), Lubbockia brevis (73970),Metridia macrura (74391), Eatania flava (74107), and Tortanusrecticauda (78844).Twenty-six stations with their accompanying lists of species iden-tified were removed from the manuscript, as the stations were citedby number only and it was not possible to assign them to the properD. or H. series in the absence of the original field labels, which appar-ently were not retained when the plankton samples were sorted. Thespecies identified from these particular stations, though not published,are available in the catalogs and reference files of the Division ofMarine Invertebrates, United States National Museum. The num-bers of these stations are : 101, 138, 1870, 1919, 2369, 2374, 2456, 2750,2763, 2796, 2928, 2939, 3195, 3587, 3594, 3596, 3597, 3599, 3621, 3628,3710, 3790, 3827, 3857, 3869, 3986.Of 15 species discussed in the text no specimens appear to have-been saved or segregated by Dr. Wilson. They are
:
Amallothrix arcuata Pontella ccramiCentropagcs bradyi Pontellopsis bitumidaDisseta maxima Pseudocliirella divaricataEuaugaptilus rigidus Sapphirina sinuicaudaFarrania oblonga Scaphocalanvs angulifrons, maleOaetanus inermis Scaphocalanvs robust usMetridia gerlachei Scolecithricella minorPareuchaeta exiguaIn Dr. Wilson's report on "The Copepods of the Plankton Gatheredduring the Last Cruise of the Carnegie" (Carnegie Inst. WashingtonPubl. 536, p. 176, 1942) , W. A. Gosline, of Stanford University, noticedthat Wilson's new generic name Carnegiella had been used some years
FOREWORD IXbefore by Eigenmann (Ann. Carnegie Mus., vol. 6, No. 1, p. 13, 1909)for a new genus of fish. I here propose Carnegietta, genotype C.gracilis (Wilson), for the preoccupied genus, in order to carry outDr. Wilson's manifest desire so to honor the late Andrew Carnegie,generous patron of science.All Dr. Wilson's records and his extensive library of copepod litera-ture were bequeathed to the Division of Marine Invertebrates, UnitedStates National Museum, Washington, D. C. It is hoped that therecipients of this posthumous work of Dr. Wilson's will continue tocontribute all publications of their own dealing with copepods ormarine biology to the Wilson library at the National Museum, in orderthat it may be made as complete as possible.Waldo L. Schmitt,Head Curator, Department of ZoologyU. /S. National MuseumJune 1949.

COPEPODS GATHERED BY THE UNITED STATESFISHERIES STEAMER "ALBATROSS" FROM 1887TO 1909, CHIEFLY IN THE PACIFIC OCEAN
By Charles Branch WilsonINTRODUCTIONThe United States Fisheries steamer Albatross made her first voy-age in 1883. The vessel was designed chiefly for the investigation offisheries and fishing grounds, and in connection with this work it dida great deal of dredging and tow-netting. Thus large collectionsof the oceanic fauna and flora were gradually accumulated, some ofwhich were submitted to various specialists for identification andreport, while others were stored for future study. The latter wasthe fate of the copepods, which remained unidentified except for thefew Atlantic species that were studied by Richard Rathbun, who gavespecial attention to their colors when alive. These Atlantic forms,together with Rathbun's valuable notes upon them, were incorporatedin the present author's report upon the copepods of the Woods Holeregion, published in 1932 as Bulletin 158 of the United States NationalMuseum.The present paper contains the remainder of the copepods whichwere gathered chiefly during the following voyages of the Albatross:(1) A voyage around South America and up the eastern Pacific,1887 to 1888; (2) voyages across the tropical Pacific to Japan andKamchatka, 1899 to 1901; (3) a cruise among the Hawaiian Islandsin 1902; (4) collecting from California southward in the easternPacific in 1904; (5) investigations in connection with the Alaskansalmon fisheries in 1903 and again in 1905; (6) a voyage throughthe northwestern Pacific in 1906; and (7) a 3-year cruise among thePhilippine Islands, 1907 to 1910, which yielded the greatest numberof specimens.No effort was made to deal with the copepods during these twodecades, and by 1911 the numbers had reached formidable proportions.Most of those taken in the first six of the above voyages and a veryfew from the seventh were then sent to Dr. Georg Ossian Sars inNorway for identification and report. He isolated and labeled abouttwo-fifths of the collection, listed the stations at which the species141
142 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMhe identified were found, and made a number of more or less com-plete pencil sketches, especially of the species he considered new.But he wrote no descriptions of his new species and did not compilenotes of any kind. He then ceased work upon the Albatross collec-tion and turned back to the completion of a report he had previouslybegun upon the copepods of the plankton collected during the scien-tific expeditions of the Prince of Monaco. A preliminary list ofthe species in this Monaco plankton had appeared in two bulletinsof the Monaco Oceanographic Museum in 1905, with brief descriptionsof the new genera and species, but no figures. The completed mono-graph was published in 1925, preceded during the previous year byan atlas of plates (see p. 144)
.
That Sars' work upon the Albatross collection followed his pre-liminary list of the Monaco copepods and preceded the publicationof his final monograph is seen in the following facts: When theAlbatross copepods finally came into possession of the present authormany of the vials contained labels in Sars' handwriting. In nu-merous instances the generic and specific names on these labels cor-responded exactly with those given in the Monaco preliminary list,though the latter were entirely changed in the final monograph. Infact, some of the changes were made after the publication of theplates and prior to the appearance of the text, so that we find acopepod figured under one name in the plates and described undera very different name in the text.For some reason Sars never resumed work upon the Albatross cope-pods, and after his death [in 1927] the entire collection was returnedto the United States National Museum, together with Sars' identifica-tions, pencil sketches, and records of stations, which were courteouslymade available by the Oslo Museum. All these were then submittedto the present author for verification of the species already identified,completion of the identification, listing, and recording of the col-lection, and descriptions of the new species. The present report isthe result of these labors.COMPLETION OF SPECIFIC CHARACTERSIt often happens that a plankton sample yields but a single sex,more rarely a single specimen upon which to establish a new species.If the types are females the new species may at once be accepted asvalid, since the female in marine copepods, wherever possible, is selectedas the primary, or holotype. Such species, though valid, are incom-plete, since the male characters of the species are lacking. In speciesbased on the male alone there is always the possibility that the type mayprove eventually to be the missing sex of a species described from the
COPEPODS GATHERED BY ALBATROSS?WILSON 143female only, rather than the representative of a species altogether new.Sometimes there seems to be an exceptional dearth of males, as in theMonaco plankton, from which more than 100 species were describedfrom females alone.The Albatross plankton contributes the missing opposite sex of thefollowing 26 species already described
:
Acartia laxa Dana, male. Pareuchaeta grandircmis (Giesbrecht),Acartia tumida Willey, male. male.Disseta scopularis (Brady), female. Pareuchaeta rasa Farran, male.Euaetideus bradyi (A. Scott), male. Phyllopus aequalis Sars, male.Euchaeta longicornis Giesbrecht, male. Phyllopus giesbrechti A. Scott, male.Euchaeta media Giesbrecht, male. Sapphirina longifurca A. Scott, male.Euchaeta pubera Sars, male. Scaphocalanus angulifrons Sars, male.Euchirella bitumida With, adult male. Scaphocalanus echinatus (Farran),Euchirclla galeata Giesbrecht, male. male.Lophothrix humiUfrons Sars, male. Scaphocalanus medim (Sars), male.Lophothrix latipes (T. Scott), male. Scolecithricella auropecten (Gies-Macandrewella chelipes (Giesbrecht), brecht), male.female. Scolecithricella dentata (Giesbrecht),Macandreicella sewelli Farran, male. male.Pareuchaeta californica (Esterly), male Scottocalanua hclenae (Lubbock),Pareuchaeta erebi Farran, male. female.In dealing with the new species the names proposed by Sars for thespecies he regarded as new have been retained as far as possible. Somethat were new at the time he made the drawings have since been de-scribed by later investigators, to whom of course they must be credited.But many of the drawings made by Sars are worthy of publication,since their wealth of detail fully establishes species that had been leftquestionable by reason of meager description and poor figures. Sars,however, left no manuscript of any sort, and therefore the descriptions,the measurements, and the remarks belong entirely to the presentauthor. A list of the new species described in this paper is given onpage 351. OTHER COMPARABLE COLLECTIONSIn order to obtain a better conception of general plankton distribu-tion than can be obtained from any single record, comparisons aredrawn with five other plankton lists of special importance not onlyfor their great intrinsic value, but also because they are among themost comprehensive lists that have thus far appeared and becausethey cover much the same areas as those traversed by the Albatross.These lists or reports may be characterized briefly in the order of theirappearance.1. Dana, James Dwigiit. Crustacea [of the] United States Expir-ing Expedition during the years 1838 to 1842, under the command of
144 BULLETIN 100, UNITED STATES NATIONAL MUSEUMCharles Wilkes, U. S. N. Published in 1853 as volume 14, part 2, ofthe Report on the Expedition, followed by a folio Atlas of Plates in1855. This was the first scientific expedition sent out by the UnitedStates Government and forms an appropriate prelude to the subse-quent explorations of the Albatross. One hundred seventy-one speciesof copepods, including free-swimming, parasitic, semiparasitic, andcommensal species, are reported on. Dana served as a member of thisexpedition and thus had an opportunity to study the copepods whilethey were alive, as well as after preservation. He is the only authorso privileged, and this gives his observations upon the color of theliving copepods special value. At least 50 of his species are here re-ported from almost identical localities after the lapse of a century.2. Brady, George Stewardson. Report on the Copepoda collectedby H. M. S. Challenger during the years 1873 to 1876. Published in1883 as volume 8, part 23, of the Report on the Expedition. This worktreats 106 species and includes parasitic and commensal as well asfree-swimming forms. It is probably the most widely known cope-pod list and the one to which reference is most frequently made.3. Scott, Andrew. The Copepoda of the Siboga Expedition in theDutch East Indies during the years 1899 to 1900. Published in 1909as monograph 29a, part 1, of the Report on the Expedition. Includesaccounts of 338 species of littoral, free-swimming, and semiparasiticcopepods and contains a very full and valuable synonymy and distribu-tion. The accompanying plates also give many details of structurenot found elsewhere.4a. Sars, Georg Ossian. Copepodes particulierement bathypelagi-ques. Published as fascicle 69 of the Resultats des Campagnes Scien-tifiques accomplies sur son Yacht par Albert I er Prince Souverain deMonaco. The Atlas of Plates appeared in October 1924, the text inDecember 1925.4b. Rose, Maurice. Copepodes pelagiques particulierement de sur-face. Published in 1929 as fascicle 78 of the same Resultats.The two preceding Monaco lists (4a and 4b) are supplemental, and,for purposes of discussion, have been considered as constituting asingle list. The former contains 297 deep-water species and the latter132 surface and shallow-water species. Eighty-one species appear inboth lists, thus reducing the total Monaco plankton to 348 species,all of which are free-swimming.5. Wilson, Charles Branch. The copepods of the planktongathered during the last cruise of the Carnegie. [Published post-humously in Carnegie Institution of Washington Publication 536,1942. Dr. Wilson's discussions of the Carnegie plankton refer to hisat the time unpublished manuscript.?W. L. S.] In collecting thisplankton, nets of bolting silk 1 meter in diameter at the mouth
COPEPODS GATHERED BY ALBATROSS?WILSON 145and several meters long were employed. Three tows were madesimultaneously at each station, one at the surface, one at a depthof 50 meters, and the third at a depth of 100 meters. The tows atsuccessive stations were made at the same time of day by the sameoperator, using the same nets and the same methods. Furthermore,the temperature, salinity, density, and phosphates were recorded forevery tow. This method makes the records especially useful for com-parison and furnishes valuable data for establishing the reactions ofvarious copepod species to light, temperature, and salinity.SYSTEMATIC REFERENCESSince this is essentially a record of the copepod species found inthe plankton and in no sense a systematic treatise, it seems preferableto arrange the species in alphabetical order without reference tofamilies. The synonymy of the different species is so fully publishedin the Siboga and Monaco lists that there is no need for presentingit here [only the reference to the original description is given undereach species name, except for species amplified by Dana, Giesbrecht,and Sars in their larger monographs (1853-1855, 1892, and 1925 re-spectively), to which works reference is also made].Very nearly all the copepod species named in this paper may befound in one of the plankton lists just referred to. The systematicposition and synonymy may be still further defined by reference toone of the following works
:
1892. Giesbrecht, Wilhelm. Systeinatik und Faunistik der pelagischen Cope-poden des Golfes von Neapel und der angrenzenden Meeresabschnitte.Fauna und Flora des Golfes von Neapel, monogr. 19.1911. Wolfenden, Richard Norris. Die marinen Copepoden: 2, Die pelagischenCopepoden der Westwinddrift und des sudlichen Eismeers. Mit Beschrei-bung mehrerer neuer Arten aus dem atlantischen Ozean. Deutsche Siid-polar-Expedition, 1901-1903, vol. 12, Zoology, vol. 4, fasc. 4.1915. With, Carl. Copepoda I. Calanoida Amphascandria. Danish Ingolf-Ex-pedition, vol. 3, pt. 4.1929. Farran, G. P. Crustacea, pt. 10, Copepoda. British Antarctic (TerraNova) Expedition, 1910. Nat. Hist. Rep., Zool., vol. 8, No. 3.1929, 1932. Sewell, R. B. Seymour. The Copepoda of Indian Seas. Calanoida.Mem. Indian Mus., vol. 10, pp. 1-221, 81 figs., 1929; pp. 223-407, figs.82-131, 6 pis., 1932.1932. Wilson, Charles Branch. The copepoda of the Woods Hole region, Massa-chusetts. U. S. Nat. Mus. Bull. 158.1933. Rose, Maurice. Copepodes pelagiques. Faune de France, No. 26.The last two references contain keys to the various genera andspecies and outline-drawings of the distinctive characters of everyspecies included.
146 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMTHE NUMBER OF SPECIESAs here identified, the present record contains 472 valid species(plus 1 copepodid larva of Pennella), of which 29 are new to science.Such a large number of species would naturally be expected whenthe size of the Albatross collections is taken into consideration. Whenthe number of tow-nettings runs into the thousands the number ofspecies might well reach into the hundreds. A few parasitic specieshave been included because when captured they were swimming freelyand formed as integral a part of the plankton as any of the otherspecies. In addition, the Albatross during the voyages here recordedobtained many other parasitic species taken from their respectivehosts. These have been fully described and figured in papers dealingwith the parasitic copepods that have appeared under the author'sname in the Proceedings of the United States National Museum.NETS AND METHODS OF COLLECTINGVarious sizes of nets were used in collecting the Albatross plankton.The commonly used surface tow nets of the earlier days of the Alba-tross were rigged on rings 12 to 18 inches in diameter, but largernets with rings from 4 to 5y2 feet in diameter were also frequentlyemployed. From 1891 through 1895, and more rarely in later years,intermediate tows were usually accomplished with closing nets of twotypes?the Tanner net of about 2y2 feet in diameter, and the Townsendnet of 3 feet in diameter. Beginning with 1904 the smaller tow netswere Kofoid nets of three styles rigged on rings ranging from 12inches to 2 feet in diameter. These were used separately, at times intandem or series, and occasionally in conjunction with larger opensurface and vertical nets of four different styles. The intermediatenets of these days were, almost without exception, of the open typeand of two sizes, 4 and 5y2 feet in diameter. During the Philippinecruise, 1907-10, six styles of Kofoid nets were used. All six weresuspended from 14-inch rings, the standard of that time. There werealso three styles of open intermediate nets with rings either 5y2 or 10feet in diameter, as well as an open plankton net fastened to a 2-footring.Surface tows were drawn horizontally immediately, or a little,below the surface for varying times and distances. Less often werevertical hauls made from various depths to the surface. More rarelywere plankton nets drawn horizontally at a given distance below thesurface and then diagonally to the surface. Except in the early days,when one or another type of closing net was used, the horizontal towsbecame virtually a combination horizontal-vertical haul which, how-
COPEPODS GATHERED BY ALBATROSS?WILSON 147
ever, did afford a greater opportunity for the inclusion of the speciesfrequenting the horizontal part of the tow.Kegrettably, vertical tows with open nets give no idea of the depthat which various specimens entered the net. An electric light wasused to lure the plankton on enough occasions to warrant the conclu-sion that it adds to the number of copepods captured.[Descriptions of the several nets and pertinent physical station datawill be found in the dredging and hydrographic records published foreach Albatross cruise by the U. S. Fish Commission, later U. S. Bureauof Fisheries. These publications are cited on pages 352, 358, 360, 364,423 in footnotes accompanying the "Lists of copepods collected,arranged by stations."?W. L. S.]GENERAL CONCLUSIONSAlthough the time of day, the temperature of the water, and theduration of the haul were recorded for each towing in the originalAlbatross dredging and hydrographic records, there was never anyagreement between successive hauls except in temperature. Exten-sive comparison of the different hauls is therefore impossible and thusthe number of species obtained would have little significance. Gen-erally, the number has not been discussed in the text or entered in thelists of copepods collected. A study of the lists of species collected,however, together with a review of the station records, emphasizessome facts worthy of consideration and permits some comparisons ofinterest with plankton lists of other expeditions.The first impression is one of great irregularity of distribution.The samples of plankton from 29 stations examined by the authorcontained no copepods. At each of some 100 other stations there wasbut a single species and sometimes only a single specimen. Otherwise,anywhere from 2 to 100 or more species were obtained at each station.Conversely, approximately 90 species were each confined to a singlestation, while the number of stations from which other species wererecorded ranged from 2 to 50 or more. There were even greaterdifferences in the number of specimens obtained at the stations. Somehauls yielded but two or three individuals, while in others the numberoften ran into hundreds and even thousands of specimens.The time of day most favorable to a large catch is late in the after-noon or early in the evening.While a horizontal surface tow nearly always yields a larger num-ber of specimens and a greater variety of species, there are still leftquite a large number of species that appear only in vertical tows fromvarious depths. By increasing the duration of a tow, an addition toits volume will be practically certain to result, but the increment is843804?50 2
148 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
never in exact proportion to the duration. For example, doublingthe duration will produce neither twice as many species nor twice thenumber of specimens.The plankton taken at stations 33 to 63, in the southern part ofBering Sea, among and north of the Aleutian Islands, furnishes in-teresting information. The copepod species recorded in these towsinclude many that are usually found considerably farther south.Species of Corycaeus, Farranula, /Sappkirina, and Undinula are ordi-narily regarded as at least subtropical in distribution. Their pres-ence so far north suggests that the Japan Current, like the correspond-ing Gulf Stream in the Atlantic, transports plankton in the middleof summer far beyond its normal habitat. This has been recordedmany times at Woods Hole, Mass., in connection with the Gulf Stream,and these copepod records testify to the same thing in connectionwith the Japan Current.Certain associations or companionships may be noted also amongthe different species. We naturally expect the various species ofthe same genus to be associated, since the environment favorable toone of them might be assumed to be favorable to all. The speciesof such genera as Candacia, Corycaeus, Eucalanus, Euchirella, Labi-docera, Lucicutia, Oncaea, Pontellopsis, and Sappkirina, as well asmany others, naturally swarm together in the plankton as a resultof their relationship. Then there are also generic as well as specificcompanionships, genera that are so often found together in the sametow as to suggest a sort of Damon and Pythias friendship. Suchgenera as Undinula, Euchaeta, Metridia, and Acrocalanus are oftenfound together, sometimes in large numbers. The surface tow atstation 4009 contained a solid pint of copepods, made up entirely ofUndinula vulgaris, Euchaeta marina, and Acrocalanus gracilis, andthis grouping was repeated at a number of other stations. Whyshould not such an association suggest a closer relationship betweenthese genera than is usually accorded them? Such a discussion ofinterrelations would afford a welcome relief from the harshness ofstressing generic distinction.The five plankton lists of the Wilkes (Dana), Challenger (Brady),Siboga (A. Scott), Monaco (Sars, Eose), and Carnegie 2 (Wilson)expeditions listed on pages 143-145 were chosen for comparison withthe results of the Albatross expeditions as here transcribed. They arethe largest records covering in whole or in part the areas traversedby the Albatross. Hence such a comparison will give us at least apartial intimation of the changes that have taken place in the copepodcontent of the plankton during three-quarters of a century. Of
2 [At the time Dr. Wilson discussed this list it was still in manuscript.?W. L. S.]
COPEPODS GATHERED BY ALBATROSS?WILSON 149
course, the kind of nets employed and the methods used in collectingthe plankton have changed considerably, but the results obtained pre-sent certain facts and considerations of great interest.Of the 472 valid species enumerated in the present report, 12 appearin all five of the compared lists, 30 are present in four of the lists,79 in three of them, 114 in two of them, and 145 in at least one of them.This leaves 93 species found only in the Albatross plankton, of which29 are new to science. The 12 present in all the lists may reasonablybe regarded as the most widely distributed and the most stable ofthe plankton copepods. It sometimes happens that one of thesespecies runs amuck at breeding and comes to constitute practicallythe entire bulk of the plankton over a considerable area. Anomalocerapatersoni, Galanus finmarchicus, Euchaeta marina, and Undinula vul-garis often swarm in sufficient numbers to color the sea in which theyare swimming.On the other hand, the 93 species confined to the Albatross planktonconstitute just about 19 percent of the total number of species takenby the Albatross and may be regarded as the least widely distributedand the most transitory of the copepod species in the plankton. Theydo not occur in large numbers, usually two or three specimens in agiven localitjr. With the preceding group, they form one of twoplankton extremes ; together they include a little more than one-fifthof the entire number of species.For the bulk of the plankton the superabundance mentioned aboveis generally temporary, soon disappearing, while the members of thislast group or extreme never reach sufficient numbers to make themworthy of more than honorable mention. It is, therefore, the re-mainder, approximately four-fifths of the whole number of species,that contributes most to the maintenance of the general average of theplankton. Conversely, the two groups forming the extremes ofabundance are chiefly responsible for the inequalities noted in theplankton at different times and in different localities.Seventy percent 3 of all the Albatross plankton was taken in hori-zontal tows at the surface, and the same is true of 73 percent of theSiboga plankton. In the Monaco plankton 64 percent of the collec-tions studied by Sars came from the surface, and of the 512 collectionsexamined by Rose only 9 were taken below the surface. In the Wilkesand Challenger expeditions no depth statistics are given, but Brady'sreport begins with this sentence, "The copepods noticed in this reportwere taken almost entirely from surface-net gatherings made during
8 [The percentages given, as well as the statistical remarks made here and elsewhere inthe report, are in the main correct. It is not believed that the few species added to themanuscript or that the several stations omitted will make any appreciable difference inDr. Wilson's conclusions.?W. L. S.]
150 BULLETIN 100, UNITED STATES NATIONAL MUSEUMthe cruise." The same is true of the Wilkes plankton, although thestatement does not appear in Dana's record. In the Carnegie expedi-tion three horizontal tows were taken at each station, one at thesurface, one at a depth of 50 meters, and the third at a depth of 100meters (only one vertical haul, from 1,000 fathoms to the surface,was made during the entire cruise). Our knowledge of the oceanicplankton, therefore, is almost entirely confined to what is found atthe surface, and we know practically nothing of the copepods livingin the depths.The excellent Monaco monograph by Sars (cf. p. 144) bears the title
"Copepodes particulierement bathypelagiques." This could well betaken as contradictory unless it be explained that the vertical hauls(36 percent) yielded four times as much plankton as the surfacetows (64 percent), with a very pronounced superiority in the varietyof species. Lacking devices by which the nets employed could beopened just before a vertical haul was made and be closed immediatelyupon its completion, the nets would of course function as open netswhile being lowered to the required depth, in the course of theirupward passage for the duration of the haul, as well as up to and in-cluding the surface itself. Thus the depth at which any specimenentered the net can never be established. The mere presence of aparticular species within a net after a vertical haul would not be evi-dence that it is bathypelagic. Only if it is found in several verticalhauls and not at all in the surface tows could negative evidence beclaimed. It is upon such evidence, which is excellent as long as it re-mains true, that the Monaco specimens were claimed to be bathypelagic.But there is always a menace to such negative proof in the possiblefuture discovery in surface tows of a species declared to be bathype-lagic (cf. Gaetanus miles, p. 232).As to the relative abundance of the copepod plankton at the surfaceor in the depths we find much interesting evidence. In the Sibogaplankton 65 surface tows captured an average of 35 species apiece,while 15 vertical hauls averaged 69.1 species, and one of them yielded131 species. In the Monaco plankton 76 of the surface tows yieldedbut a single species apiece, and for the whole 210 tows the averagewas only 3.60 species. On the other hand, the 136 vertical haulscontained an average of 21.70 species and one of them yielded 84species. In the Carnegie plankton, with one exception, there wereno vertical hauls, but simultaneous horizontal tows were taken at threedepths with a slight difference in favor of the deepest tow. In theAlbatross plankton 152 surface tows contained an average of 16species, while 130 vertical tows yielded an average of 20 species.So much then for the past and the present of the plankton throughnearly a hundred years, and now what of the future? A good start
COPEPODS GATHERED BY ALBATROSS?WILSON 151has been made toward a knowledge of the surface plankton, but it isonly a start, and a broad field is still left for future investigation anddiscovery. Many species have been obtained in vertical hauls fromconsiderable depths, but we have absolutely no definite knowledge asto where they entered the net. Before any real knowledge of depthdistribution can be obtained there must be a series of horizontal towsmade at different depths with a net capable of being closed while beinglowered, opened as the tow is being made, and closed again whileit is being raised to the surface. A series of such tows and only suchwill give us the definite knowledge required for further study of thedeep-water forms.THE SPECIES COLLECTEDIn order that credit may fall where it is properly due, the name ofthe author follows each of the new species. The species followed by
"Sars MS." are based on the very excellent drawings that Dr. Sarsmade of them. As he left no written notes, I have supplied the neces-sary diagnostic descriptions.4Genus ACARTIA Dana, 1846ACARTIA CLAUSII GieabrechtAcartia clausii Giesbbecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2, p. 25,1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 507, 522, pi.30, figs. 2, 6, 9, 13-15, 17, 28, 36, 37 ; pi. 31, figs. 36, 37 ; pi. 42, fig. 32 ; pi. 43,figs. 3, 5, 14, 1892.Stations 39 ; 70 ; 4756 ; 4785. This species appeared in all the plank-ton collections except that of the Siboga Expedition. It is fairly welldistributed, but nowhere is it abundant.ACARTIA DANAE GiesbrechtAcartia danae Giesbbecht, Atti Acead. Lincei, Rome, ser. 4, vol. 5, sem. 2, p. 26,1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 508, 522, pi.30, figs. 1, 23 ; pi. 43, fig. 8, 1892.Stations 15; 24; 31; 34; 36; 39; 41; 44; 46; 47; 49; 51; 52-55; 5759 ; 60 ; 62-67 ; 70 ; 71 ; 73 ; 77 ; 470 ; 3799 ; 3829 ; 3878 ; 3901 ; 4009 ; 40114037; 4673; 4756; 4952; 5102; 5120; 5125; 5133; 5134; 5155; 51755176 ; 5180 ; 5185 ; 5190 ; 5196 ; 5208 ; 5209 ; 5223 ; 5226 ; 5227 ; 5230-52345262; 5312; 5319; 5340; 5342; 5348; 5386; 5399; 5415; 5422; 54375460; 5489; 5530; 5601; 5B47; 5651; Butaritari Lagoon, Gilbert Is-lands; Fiji Islands; Niuafu Island.As will be inferred from the foregoing list of stations, this is the
* Under the International Rules, despite Dr. Wilson's generous attitude toward Sars'work, all new species must be credited to Wilson and his name follows that of Sars inthese particular instances.?W. L. S.
152 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMmost widely distributed species in the genus. It is especially abun-dant in surface tows and is included in all the plankton lists.ACARTIA DISCAUDATA (Giesbrecht)Dias discaudatus Giesbrecht, Vierter Ber. Comm. Unters. deutsch. Meere, Jahrg.7, p. 148, pi. 3, figs. 4, 22, 23 ; pi. 5, fig. 18 ; pi. 6, fig. 17 ; pi. 8, figs. 32, 33,pi. 0, fig. 30, 1883.Stations 5175, 5176. Not included in any of the plankton lists andrarely reported by other observers.ACARTIA HAMATA [Sars MS.] Wilson, new speciesPlate 2, Figures 1-5Found in the Butaritari Lagoon on Makin, the northernmost ofthe Gilbert Islands and in surface tows 5 miles south of the SuvaLightship in the Fiji Islands.Female.?Head separated from the first segment and constitutingmore than half of the metasome, widest across its posterior marginand a little narrowed anteriorly with a convex frontal margin. Firstsegment a little wider than the head and three times as long as thesecond segment. Second, third, and the fused fourth and fifth seg-ments narrowed a little, and increasing in length, the last with stoutspines at its posterior corners and a pair of smaller dorsal spines infront of the posterior margin, each halfway between the corner andthe midline. Genital segment barrel-shaped, longer than wide, witha pair of dorsolateral spines at its posterior corners. Abdomen2-segmented, the anal segment a trifle the longer, the basal segmentwith a semicircular dorsal process projecting backward over the dorsalsurface of the anal segment and reaching its center. Caudal ramiabout as wide as long, each with five setae, the second from the insideconsiderably longer than the others, which are approximately equal.The first antennae reach the caudal rami and are slender, with thebasal segments imperfectly separated, but displaying the most dis-tinctive character of the species in the form of large spines. Thebasal segment has three spines, two on the anterior and one on thedistal margin, the latter visible only in ventral view. The secondsegment has a single strongly hooked spine on the ventral marginturned inward toward the head. Some of these spines are visiblefrom any point of view and thus furnish the most convenient meansof identification. The second antennae, mouth parts, and first fourpairs of legs are of the usual pattern in this genus. The fifth legsare peculiar in having the terminal spike longer than the seta, curvedalmost into a half circle and perfectly smooth. The seta is ratherloosely plumed, especially toward the tip, which tapers to a fine point.Total length 1.32 mm. Greatest width 0.32 mm.Type.?U. S. N. M. No. 70729, Fiji Islands, south of Suva Light.
COPEPODS GATHERED BY ALBATROSS?WILSON 153Remarks.?A. hamata differs from all the other species of the genusin the presence of the large spines on the basal segments of the an-tennae of the female. These stand out so prominently that they serveto identify the species at a glance.ACARTIA LAXA DanaPlate 20, Figukes 267-269Acartia laxa Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 26, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1123, 1853 ; pi. 79, fig. 5 a-c, 1855.Stations 5171; 5175; 5208; 5209; 5231. This was one of the newspecies described and figured by Dana in the Wilkes plankton fromfemale specimens collected in the Sulu Archipelago in the Straitsof Banca. Brady reported it in the Challenger plankton from thePhilippine Islands and gave a description of the female with 11figures. It does not appear in any of the other plankton lists, al-though T. Scott (1894, p. 65) found it to be of frequent occurrence in38 tow nettings from the Gulf of Guinea. In spite of these descrip-tions and figures it has remained a questionable species with the maleunknown. The Albatross material includes both sexes. My descrip-tions of them validate Dana's species.Female.?Metasome elongate-elliptical, three and a half times aslong as wide and narrowed a little anteriorly and posteriorly. Headfused with the first segment and obtusely rounded on the frontalmargin; fourth and fifth segments fused and a little concave pos-teriorly, with stout spines at the corners which reach beyond thecenter of the genital segment. Urosome less than a third as longbut more than a third as wide as the metasome, tapered regularlybackwards, and 3-segmented. Genital segment somewhat trapezoidalin shape, being narrowed a little posteriorly, with straight sides. Thetwo abdominal segments are the same width and length and combinedare longer than the genital segment. The caudal rami are twice aslong as wide, each armed with five plumose setae, which are so diver-gent that the flabellum or fan which they form is actually widerthan long.The first antennae are a little longer than the body and stand outon each side in the same straight line at right angles to the body axis.The endopod of the second antenna is about five times as long as theexopod, and the segmentation at the tip of the latter is invisible. Themandible has a large outer acuminate tooth separated from the others,and a row of seven smaller saw-teeth across the end, diminishing insize inwardly. The first four pairs of legs are similar to those in otherspecies of the genus, the fifth pair being quite slender and 2-segmented.The second segment is more than twice as long as wide and is tipped
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with the usual stylet and plumose seta. The latter are of equal length,which is about two and a half times the length of the segment. Thestylet is perfectly smooth and acuminate, and the seta is rather sparselyplumed. Total length 1.4 mm. Metasome 1.2 mm.Male.?Metasome similar to that of female but only three times aslong as wide and narrowed considerably more posteriorly than an-teriority. Head more or less completely separated from the first seg-ment and comparatively short. Fourth and fifth segments completelyfused and prolonged at the posterior corners into sharp spines, whichreach the center of the genital segment and are slightly curved out-ward at their tips. Urosome about two-fifths as wide and one-thirdas long as the metasome if the caudal rami are included. Genitalsegment widened posteriorly, the lateral margins concave, the pos-terior corners each armed with two spines and a smaller one in frontof them on the lateral margin. The two abdominal segments are thesame size and rectangular in outline and together are longer than thegenital segment. The basal segment is unarmed, but the anal segmenthas three minute setae on each side at the anterior corner. Caudalrami a little shorter than in the female, nearly as wide as long, eachwith five setae. Four of these setae are on the outer margin of theramus and increase in length distally; the fifth one is terminal, andinside of it at the inner corner of the ramus is a minute spine. Hereagain the fan formed by the plumose setae is wider than long.The first antennae just reach the anal segment and are quite slender,the right one slightly larger than the left. The second antennae,mouth parts, and first four pairs of legs are like those in the female.The fifth legs are shown on plate 20, figure 269. Each is uniramoseand 4-segmented, the right one longer than the left. The plumoseseta on the basal segment of each leg is long and stout, that on the rightleg at the distal corner, on the left leg at the center of the outer margin.The second segment of the right leg has a scalloped inner margin, andthe third segment has a large rectangular process at the inner distalcorner. The fourth segment is curved backward around the end ofthis rectangular process. The last three segments of the left leg areabout the same diameter and diminish in length distally.Allotype male.?U.S.N.M. No. 73736, from station 5208.Remarks.?The discovery of these males with their peculiar specificcharacters leaves no doubt as to the validity of Dana's species. Danastated that the females of this species were bluish when alive. As themales do not differ from the females in the preserved material, theyare probably like them when alive. The species does not seem to bewidely distributed, but since over 100 specimens were obtained it maybe fairly abundant in limited areas.
COPEPODS GATHERED BY ALBATROSS?WILSON 155ACARTIA LONGIREMIS (Lilljeborg)Dias longiremis Lilljeborg, De crustaceis ex ordinis tribus : Cladocera, Ostracodaet Copepoda, in Scania occurrentibus, p. 181, pi. 24, figs. 1-15, 1853.Stations 15 ; 63 ; T5 ; 3782 ; 3799 ; 3829 ; 3834 ; 3867 ; 3878 ; 4010 ; 41904700; 4756; 4926; 5234; 5246; 5320; 5340; 5399; 5415; 5530; 5601H. 1888; Beaver Harbor, Vancouver Island, British ColumbiaKodiak, Alaska; Sabtan Island, Philippine Islands. Confined to twostations in the Monaco plankton, to very few stations in the Carnegieplankton, and absent from the other lists. The species is a truepelagic form, as stated by Sars (1903, p. 150), but it is not wholly con-fined to the open ocean. Several of the tows in which it was capturedwere vertical hauls from 500, 300, and 100 fathoms to the surface.ACARTIA NEGLIGENS DanaAcartia negligent Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 26, 1849;United States Exploring Expedition, 1838-^2 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1121, 1853 ; pi. 79, fig. 3 a-c, 1855.Stations 3 ; 9 ; 66 ; 70 ; 71 ; 76 ; 77 ; 3829 ; 3878 ; 3932 ; 4664 ; 5175 ; 5176
;
5186; 5225; 5230; 5233; 5262; 5263; 5301; 5338; 5340; 5349; 5410;5411 ; Fiji Islands. One of Dana's species originally obtained amongthe Kingsmill Islands just north of the Equator and afterward inthe open ocean. It is found in ail the plankton lists except theChallenger. The above record shows it to be fairly common amongthe Philippine Islands and off the coast of Japan. It is apparentlymost abundant at the surface. In the Carnegie plankton it is shownto descend to a depth of at least 100 meters; two of the Albatrosscatches were made in vertical hauls from as much as 100 and 300fathoms to the surface. ACARTIA TUMIDA V/illeyPlate 20, Figures 271-274Acartia tumida Wiixey, Rep. Canadian Arctic Exped., 1913-18, vol. 7, Crustacea,pt. K : Marine Copepoda, p. 21K, figs. 25-27, 1920.More than 100 specimens of this species, including both sexes, weretaken by V. B. Scheffer, of the U. S. Biological Survey, June 10,1937, in a surface tow at the anchorage off Attu Island, the western-most of the Aleutian Islands. Originally established by Willey uponthree females taken in a surface tow a little farther to the east, ithas not been noted by any subsequent author. Since Willey's de-scription and figures were very limited, a full description is here given,that of the male for the first time.Female.?Metasome elongate-elliptical, three times as long as wide;head separated from the first segment and protruding over the baseof the rostrum ; fourth and fifth segments fused with rounded corners.
156 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMUrosome half as wide and almost half as long as the metasome andmade up of three segments. Genital segment as long as the twoabdominal segments combined, its lateral margins convex. Basalabdominal segment twice as long as the anal segment, also with convexsides. Anal segment wider than long with straight sides, incised atthe center of the posterior margin.First antennae slender, just reaching the posterior end of the thoraxand rather sparsely setose. Exopod of second antenna scarcely longerthan the basal segment of the endopod. Mandible with one largeacute outer tooth separated from the others and a row of smaller teethacross the end diminishing in size inwardly. First four pairs oflegs biramose, exopods 3-segmented, endopods 2-segmented, muchshorter than the exopods. Fifth legs uniramose, 3-segmented, basalsegments totally fused across the midline. Middle segments sub-rectangular and slightly curved, with a large plumose seta at theouter distal corner. Third segments globular at the base and thennarrowed into a long acuminate curved blade, which is perfectlysmooth. Total length 2.25 mm. Metasome 1.66 mm. long, 0.65 mm.wide.Male.?Metasome elongate-elliptical as in the female, not quite threetimes as long as wide, narrowed a little anteriorly but scarcely at allposteriorly. Head separated from the first segment and about aslong as the thorax; fourth and fifth segments fused with roundedposterior corners. Urosome half as long but only a third as wideas the metasome and 4-segmented. Genital segment wider than theabdomen, with strongly convex lateral margins, making it a littlewider than long. Basal abdominal segment flask-shaped, the en-larged distal end with convex sides; middle and anal segments withstraight sides and as wide as the neck of the flask. Caudal rami one-half longer than wide and nearly as long as the anal segment.First antennae reaching the middle of the genital segment and evenmore slender than in the female, neither one geniculate. Second an-tennae, mouth parts, and first four pairs of legs like those of thefemale. Fifth legs uniramose, 4-segmented, and relatively long andslender. Basal segment of the right leg bent at right angles, thesecond segment with a long seta on the posterior surface at about thecenter, the third segment with a large triangular process on the innermargin, the fourth segment curved into a half circle, with a smallterminal seta and another near the center of the concave margin.The basal segment of the left leg is very short and has a short setaat the inner distal corner. The second and third segments each carryan outer seta, while the fourth segment is split and each portion istipped with a large terminal seta. Total length 2.10 mm. Metasome1.25 mm. long, 0.41 mm. wide.
COPEPODS GATHERED BY ALBATROSS?WILSON 157Allotype male.?U.S.N.M. No. 73739.Remarks.?These Albatross specimens were all sizes from small oneswhose dimensions were the same as those given by Willey up to thesize here recorded. This suggests that Willey's specimens had notfully matured. The stocky urosome and the details of the fifth legsare distinguishing characters.Genus ACROCALANUS Giesbrecht, 1888ACROCALANUS GIBBER GiesbrechtAcrocalanus gibber Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 332, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 171,175, pi. 6, fig. 32 ; pi. 10, fig. 37, 1892.Stations 16; 65; 66; 71; 3789; 3799; 3829; 4009; 4037; 4644; 5175;5185; 5186; 5190; 5208; 5223; 5226; 5228; 5232; 5233; 5240; 5262;5263; 5301; 5320; 5340; 5382; 5386; 5387; 5399; 5412; 5413; 5424;5434; 5437; 5651; Sabtan Island, Philippine Islands; Fiji Islands.Sewell (1929, p. 80) found this species to be one of the commonestamong the Investigator collections in Indian waters. This Albatrossrecord indicates that it is also widely distributed throughout thePhilippines, although the number of specimens collected at each stationseldom exceeded two or three. It was listed in the Siboga andCarnegie planktons.ACROCALANUS GRACILIS GiesbrechtAcrocalanus gracilis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 332, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 171, 175,pi. 6, fig. 27 ; pi. 10, fig. 35, 1892.Stations 13; 16; 24; 30; 31; 41; 42; 45; 48; 52; 53; 65; 66; 67; 7173; 80; 3799; 3829; 3878; 3901; 3912; 3932; 3952; 3980; 4009; 40114037; 4734; 4926; 4952; 5120; 5133; 5134; 5175; 5180; 5185; 51865190; 5208; 5223; 5225; 5226; 5227; 5228; 5230; 5231; 5233; 52345240.; 5246; 5262; 5301; 5312; 5320; 5340; 5342; 5346; 5348; 53495382; 5386; 5387; 5395; 5399; 5410; 5411; 5415; 5422; 5434; 54375507; 5646; 5647; 5651; 5653; Fiji Islands; Sabtan Island, PhilippineIslands; Charles Island, Galapagos. Well distributed in the Sibogaplankton and abundant in the Carnegie plankton, the number ofspecimens at each station of the long list above nearly always reachedtwo figures. In strong contrast with the preceding species, this onemust be recorded as the most abundant species of the genus.ACROCALANUS LONGICORNIS GiesbrechtAcrocalanus longicornis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem.2, p. 332, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 171,175, pi. 6, figs. 25, 33 ; pi. 10, figs. 34, 36, 39, 1892.
158 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 3799 ; 3901 ; 4588 ; 5208 ; 5209 ; 5240 ; 5262 ; 5340 ; 5348 ; 5415
;
5424; 5437; 5646; 5651; Sabtan Island, Philippine Islands. Thisspecies was well distributed in the Siboga (50 stations) and Carnegie(37 stations) planktons but did not appear in the others.ACROCALANUS MONACHUS GiesbrechtPlate 2, Figure 6Acrocalanus monaohus Giesbrecht, Atti. Accad. Lincei, Rome, ser. 4, vol. 4, sein.2, p. 333, 1888 ; Fauna unci Flora des Golfes von Neapel, monogr. 19, pp. 171,175, pi. 6, figs. 26, 31 ; pi. 10, fig. 38, 1892.Stations 10; 3683; 3765; 3829; 3901; 3912; 4722; 5155; 5223; 5226;5246; 5262; 5320; 5386; 5399; 5437; 5488; Fiji Islands. Found at4 stations in the Siboga plankton and 37 in the Carnegie plankton butnot present in the others.Genus AEGISTHUS Giesbrecht, 1891AEGISTHUS MUCRONATUS GiesbrechtAegisthus mucronatus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1,p. 476, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 573,577, pi. 46, figs. 46-49, 51 ; pi. 49, figs. 2, 3, 6, 10, 1892.Stations 3 ; 3799 ; 4700 ; 4734 ; 5120 ; 5185 ; 5262 ; 5320. This specieswas taken in the Siboga plankton in 13 vertical hauls from 700 to1,500 meters to the surface. Six of the Albatross hauls were verticalones from 500, 350, 300, and 100 fathoms to the surface ; two were sur-face tows. It appears otherwise only in the Monaco plankton list andmust be regarded therefore as a poorly distributed species. M. W.Johnson (1937, p. 506) states, "On the west coast of America it isprobable that there is a continuous deep-water distribution [ofmucronatus'] extending at least from southern California to theStraits of Juan de Fuca * * *." All the specimens of this speciesfrom stations 3799 and 5262 were males and were identified by Sarsas Aegisthus dubius. A. dubius was originally established by Sarson males in the Monaco plankton. Farran (1926, p. 301) in his dis-cussion of the Research plankton suggested that these were the malesof the species mucronatus. More recently M. W. Johnson (1937, p.505) has positively identified copepodid and adult dubius males as be-longing to the species mucronatus. These Albatross specimens there-fore must be regarded as A. mucronatus.AEGISTHUS SPINULOSUS FarranAegisthus spinulosus Farran, Ann. Rep. Fisheries, Ireland, 1902-03, pt. 2, app.2, p. 46, pi. 12, figs. 8-14 ; pi. 13, figs. 1-4, 1905.Stations 5120; 5185; 5226; 5227; 5262; 5437. Originally estab-lished by Farran upon a single female specimen and does not appear
COPEPODS GATHERED BY ALBATROSS?WILSON 159in any of the plankton records. A single female was also taken ateach of these Albatross stations, and therefore it must be a rare species.Genus AETIDEUS Brady, 1883AETIDEUS ARMATUS (Boeck)Pseudocalanus armatus Boeck, Forh. Vid. Selsk., Christiania, vol. 14, p. 38, 1872.Stations 63; 65; 67; 71; 4574; 4615; 4652; 4665; 4673; 4700; 4705;4717 ; 4758 ; 5185 ; 5226 ; 5227 ; 5233 ; 5437 ; Fiji Islands. This speciesis found sparingly in all the plankton lists. Only a few specimenswere taken at any of these Albatross stations except 4758 off the Alas-kan coast, where 150 were obtained.Genus AMALLOPHORA T. Scott, 1894AMALLOPHORA TYPICA T. ScottPlate 20, Figure 275Amallophora typica T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6, pt.1, p. 54, pi. 3, figs. 39-46, pi. 4, figs. 1-A, 1S94.Stations 2 ; 4673 ; 4700 ; 4707 ; 5185. This species was established byT. Scott in 1894 upon a single male specimen captured in the Gulf ofGuinea. A single female was reported in the Monaco plankton, asingle male in the Siboga plankton, two females in the Carnegie plank-ton, and neither sex in the other lists. Hence the 25 specimens, in-cluding both sexes, identified by Sars from the first four of theseAlbatross stations are many times the largest collection thus farobtained. The fifth legs of the female are shown on plate 20, figure275, and can be identified by their obliquely truncated tips with aspine at either corner, the inner one much longer than the outer. Inthe male the fifth legs are uniramose, the left foot four times as longas the right. Genus AMALLOTHRIX Sars, 1925AMALLOTHRIX ARCUATA (Sars)Plate 2, Figures 7, 8Scolecithricella arcuata Sars, Bull. Inst. Oceanogr. Monaco. No. 377, p. 10, 1920.Amallothrix arcuata Sabs, Res. camp. sci. Albert de Monaco, No. G9, p. 185, pi. 51,figs. 14-21, 1921.Stations 4665 ; 4667 ; 4679 ; 4716. Originrtlly named and briefly de-scribed by Sars as a new species of Scolecithricella in 1920 and after-ward transferred to his genus Amallothrix in the Monaco plankton,with complete description and figures. It occurred also in the Car-
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negie plankton, and was recorded by Sewell (1929, p. 217) from theIndian Ocean. Two of Sars' figures of specimens in the Albatrossplankton are here reproduced and leave no doubt of the identity ofthe species. AMALLOTHRIX CURTICAUDA (A. Scott)Scolecithricella ctirticauda A. Scott, Copepoda of the Siboga Expedition, monogr.29a, pt. 1, p. 94, pi. 30, figs. 1-9, 1909.Stations 4679 ; 4687. Established by Scott upon two females in theSiboga plankton as a new species of Scolecithricella and afterwardtransferred to Sars' new genus Amallothrix in the Monaco report.Sars identified the species from these two Albatross stations.AMALLOTHRIX EMARGINATA (Farran)Plate 20, Figure 276Scolecithrix emarginata Farran, Ann. Rep. Fisheries, Ireland, 1902-03, pt. 2,app. 2, p. 36, pi. 7, figs. 6-17, 1905.Stations 71; 73; 75; 5120; 5287. Established by Farran as a newspecies of Scolecithrix in 1905 upon specimens from west of Ireland.Made a synonym of Scolecithricella obtusifrons by A. Scott in theSiboga plankton, but reestablished by Sars in the Monaco planktonand transferred to Amallothrix. The figure here given of the fifthlegs corresponds with that published by Sars except that the distaljoints are here distinctly separated, while the separation was onlysuggested by Sars. The species manifestly belongs in the presentgenus and constitutes a separate and perfectly valid species.AMALLOTHRIX FALCIFER (Farran)Plate 20, Figure 277Scolecithrix falcifer Farran, Journ. Linn. Soc. London, Zool., vol. 36, No. 243,p. 262, pi. 8, figs. 9-14, 1926.Stations 5263; 5437. Established by Farran as a new species ofScolecithHx upon a single female taken in a vertical haul from a depthof 100 fathoms in the Bay of Biscay. Kose (1933, p. 155) transferredthe species to the present genus, but Farran's female still continuedto be the only specimen known. These two \Albatross stations yieldedfour more female specimens and constitute the first record from thePacific. The small spine or tooth on the outer margin of the fifthleg, shown in plate 20, figure 277, and the rows of slender spinules onthe first four pairs of legs are the distinguishing characters of thespecies.
COPEPODS GATHERED BY ALBATROSS?WILSON 161AMALLOTHRIX GRACILIS (Sars)Scolecithricclla gracilis Sars, Bull. Mus. Oceanogr. Monaco, No. 26, p. 21, 1905a.Amallothrix gracilis Saks, Res. camp. sci. Albert tie Monaco, No. 69, p. 176, pi.49, figs. 9-21, 1925.Stations 4665; 4707; 4717; 4719; 4721; 4722; 5233. Establishedby Sars as a new species of Scolecithricella in his preliminary reporton the Monaco plankton, it was transferred in the final Monaco listto the present genus, which was new, and became the type species.It was briefly described and figured in the Siboga plankton but didnot appear in the other lists.AMALLOTHRIX INVENUSTA Wilson, new speciesPlate 3, Figures 9-17Station 4679. Fifteen females were taken at this station off Callao,Peru, and were identified by Sars as a new species, for which, how-ever, he suggested no name. His drawings, here reproduced, wellillustrate the species.Female.?Metasome elliptical, considerably narrowed anteriorlyand posteriorly and widest across the posterior margin of the cephalo-thorax. Head fused with the first segment, the two more than halfthe entire length; second and third segments about equal in length,fused fourth and fifth segments longer, with a reentrant posteriormargin. Urosome short, less than a fourth as long as the metasomeand about the same width throughout. Genital segment longer thanwide and only slightly protruding ventrally, with nearly straightsides. Abdomen as long as the genital segment, 3-segmented, thesegments about equal in length. Caudal rami as wide as long andsomewhat divergent.First antennae reaching the caudal rami ; exopod of second antennalonger than the endopod, the setae of both rami very long and denselyplumose. The five basal lobes of the second maxilla are very unequalin size, the three terminal sensory filaments are elongate and equalin length, while the five filaments bearing terminal buttons are muchshorter and quite unequal. Neither of the two basal segments of themaxillipeds has processes; both have setae only. The second andthird legs are armed with spines on the ventral surfaces of the endo-pods as shown on plate 3, figures 16, 17. The fifth legs have thesecond segment projecting at the inner distal corner, while the termi-nal segment is broadly rounded at its tip and armed there with twominute spines. The large setose spine on the inner margin is as longas the segment itself and is attached behind the center of the margin.Total length 3.38 mm. Metasome 2.81 mm. long and 1.25 mm. wide.Type.?U.S.N.M. No. 70756.
162 BULLETIN 100, UNITED STATES NATIONAL MUSEUMRemarks.?This new species was found at one station only andmust therefore be limited in its distribution, but the number of speci-mens obtained indicates that it can breed fairly well in favorablelocalities. AMALLOTHRIX LOBATA (Sars)Plate 20, Figure 278ScolecithHcella lobata Sars, Bull. Inst. Oceanogr. Monaco, No. 377, p. 9, 1920.Amallothrix lobata Saks, Res. camp. sci. Albert de Monaco, No. 69, p. 184, pi. 51,figs. 8-13, 1925.Station 5120. First placed by Sars in the genus Scolecithricellabut later transferred to the genus Amallothrix when fully describedand figured in the final Monaco report. It has not appeared in anyother plankton list, and, inasmuch as all the Monaco specimens camefrom the temperate Atlantic, these Albatross specimens furnish thefirst Pacific record. From the scarcity of specimens it is evidentlya rare species, though it is found in both oceans.AMALLOTHRIX OBTUSIFRONS (Sars)Plate 4, Figures 21, 22Amallophora obtusifrons Sabs, Bull. Mus. Oceanogr. Monaco, No. 26, p. 22, 1905a.Amallothrix obtusifrons Saks, Res. camp. sci. Albert de Monaco, No. 69, p. 179,pi. 50, figs. 1-16, 1925.Stations 4664; 4665; 4668; 4879; 4707; 4715; 4717; 4719; 4721;4722; 4727; 4730; 5233. This species was first placed in the genusAmallophora but was transferred to Amallothrix in the final Monacoreport. The fifth leg of a female is shown on plate 4, figure 22, thedistinguishing characters being the narrowing of the end segmentat its tip, the curved terminal spine, and the minute spine on the outermargin opposite the large inner spine. As indicated by the list ofstations above, this species is fairly well distributed. It appears inthe Carnegie as well as the Monaco planktons.AMALLOTHRIX PROPINQUA (Sars)Plate 20, Figure 279Scolecithricella propinqua Sars, Bull. Inst. Oceanogr. Monaco, No. 377, p. 9,1920.Amallothrix propinqua Sars, R<Ss. camp. sci. Albert de Monaco, No. 69, p. 178,pi. 49, figs. 22-27, 1925.Stations 5185; 5223; 5231; 5233. Placed by Sars at first in thegenus Scolecithricella and later transferred in the final Monaco recordto the present genus. The species was founded upon a single femaletaken in a 4,800-meter haul off Lisbon, and no other specimen has
COPEPODS GATHERED BY ALBATROSS?WILSON 163
since been found in the Atlantic. A few females were present in thetows at these Philippine stations and, with those found in the Carnegieplankton, constitute the records from the Pacific.Genus AMENOPHIA Boeck, 1865AMENOPHIA PELTATA BoeckAmerwphia peltata Boeck, Forh. Vid. Selsk. Christiania, for 1864, p. 269, 1865.Station [5155] ; Sabtan Island, Philippine Islands. One femaleof this harpacticoid copepod was taken in the tow at the anchorageat Sabtan Island [and two other females at 8 fathoms at station 5155in the Sulu Archipelago]. According to Sars, it is not a strictlylittoral species but is found also at moderate depths away from theshore and is thus liable to appear occasionally in the tow.Genus ANOMALOCERA Templeton, 1837ANOMALOCERA ORNATA SutcliffePlate 21, Fiqubes 285-295Station 2396. A dozen specimens of this species of Anomalocerawere found in the plankton of this Albatross station in the Gulf ofMexico.Female.?Metasome elliptical, a little more than twice as long aswide and narrowed but little at each end. Head separated from thefirst segment, with a triangular front, a rounded knob over the baseof the rostrum and a well-defined hook on each lateral margin. Thefifth segment is also separated from the fourth with a large triangularspine at each posterior corner, the left one a trifle longer than theright. The urosome is not quite one-third as long as the metasomeexclusive of the caudal rami and is decidedly asymmetrical, with foursegments. The genital segment is as wide as long, with a broadlamina extending diagonally backward from the anterior portion ofthe left side ending in four stout spines, and a long curved spinenear the posterior corner of the right side extending back nearly tothe second abdominal segment. The abdomen is 3-segmented, thebasal segment as long as the other two combined, the second segmentvery short, and the anal segment widened distally and incised on theposterior margin. The caudal rami are as long as the anal segment,the left one a little the larger, and each with five setae, three of whichare on the outer margin.The rostrum is split nearly to its base with slender filaments stronglycurved backward. The first antennae are filiform and reach only tothe third thoracic segment, with short and scattered setae. The exo-pod of the second antenna is only a fourth as wide and less than a843S04?50 3
164 BULLETIN 100, UNITED STATES NATIONAL MUSEUMhalf as long as the endopod, which is stout and 3-segmented. Thefirst and second maxillae have a general form similar to those ofpatersonii, but differ in the details of structure. In the first legs theendopod does not reach the distal end of the second exopod segment,and in the three following pairs of legs the spines on the outer marginsof the exopods are stout, with small accessory spines on the inside atthe base. In the fifth legs the endopods are a little more than a fourthas long as the exopods and are 1-segmented, with the terminal halfdivided into two unequal rami. The exopods are 2-segmented, thebasal four and a half times as long as the terminal segment, the innerdistal corner of each segment prolonged into a long slender spine.Total length 4.25 to 4.75 mm. Metasome 3 mm. long, 1.35 mm. wide.Male.?Metasome similar to that of the female except for the spinesat the posterior corners. The spine on the left is short and curved,the one on the right is long and rodlike, curving around the processon the genital segment and almost reaching the second abdominalsegment. The urosome, if the caudal rami are included, is half aslong as the metasome and 5-segmented. The genital segment is widerthan long, with a short triangular process on the left side and a muchlonger one on the right side. The four remaining segments are allthe same width but vary in length, the second one the longest, thethird one the shortest. The caudal rami are slender, enlarged distally,and as long as the last three abdominal segments combined.The antennae are longer than in the female and reach the genitalsegment; the swollen portion of the right antenna is shown on plate21, figure 289. The second antennae, mouth parts, and first four pairsof legs are like those of the female. The fifth legs are uniramose and3-segmented, the right leg being similar to that of patersonii but theleft leg having a very different end segment. Total length 3.95 to4.25 mm.Types.?[Shortly after this long-delayed paper had reached galleyproof, I was informed by Paul L. Illg, associate curator of the Na-tional Museum's Division of Marine Invertebrates, that the Anomalo-cera that Dr. Wilson here described and named as new had been an-ticipated by William H. Sutcliffe, Jr., in the Journal of the ElishaMitchell Scientific Society, vol. 65, No. 2, pp. 273-275, January 1950.We have therefore suppressed Dr. Wilson's previously given name.Sutcliffe's types, which were collected south-southwest of New River,N. C, in a surface tow, shallow water, 8 fathoms, are now on depositin the National Museum, No. 89602, holotype female, and No. 89603,allotypic male. The specimens upon which the description by Wilsongiven above was based are from Albatross station 2396, surface, lati-tude 28?34' N., longitude 86?48' W., Gulf of Mexico, and carryU.S.N.M. No. 74111.?W.L.S.]
COPEPODS GATHERED BY ALBATROSS?WILSON 165Remarks.?This species is considerably larger than patersonii andlacks wholly the distinctive coloration of the latter. In both sexesthe genital segment has a process on each side, the left one in the femalelooking like a hand with four spiny fingers, whence the specific name.In the female also the urosome is 4-segmented and quite asymmetrical,and in the male there is a row of knobs on the dorsal midline, one at theposterior margin of each segment, and a large ventral eye at thebase of the rostrum.ANOMALOCERA PATERSONII TempletonAnomalocera patersonii Templeton, Trans. Eut. Soc. London, vol. 2, p. 35, pi.5, 1837.Station 5234. This species appears in the Monaco, Siboga, and Car-negie planktons. It is a widely distributed species and is often abun-dant in a favorable locality.Genus ARIETELLUS Giesbrecht, 1892ARIETELLUS ACULEATUS (T. Scott)Plate 20, Figure 280Bhincalanus aculeatus T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6,pt. 1, p. 31, pi. 2, figs. 11-24, 1894.Stations 5185; 5231. Founded upon a single immature male fromthe Gulf of Guinea and placed in the genus Rhincalanus by T. Scottand afterward made a synonym of Arietellus setosus by Giesbrecht(1898, p. 124) . The Siboga plankton yielded a single mature female,which A. Scott rightly judged to be specifically distinct from setosus.Upon this female and the immature male A. Scott reestablished hisfather's species. Farran afterward found a mature male in a surfacehaul from off New Zealand, which assured the validity of the species.A single male was found at each of the above Albatross stations.That they were both in the same immature stage as the original onefrom the Gulf of Guinea is seen in the fact that their fifth legs (fig.280) are an exact replica of Scott's original figure.ARIETELLUS ARMATUS WolfendenPlate 4, Figures 23-26Arietellus armatus Wolfenden, Deutsche Siidpolar-Exped., 1901-1903, vol. 12,Zool., vol. 4, fasc. 4, p. 330, fig. 67, pi. 36, fig. 4, 1911.Stations 6; 7; 27; 3878; 4689; 4705; 4722; 4730; 4734; 5319; 5451.Eight specimens, including both sexes, obtained from the first twostations east of Trinidad and north of French Guiana, were identifiedby Sars as a new species. Single specimens were obtained from theother stations. Wolfenden, in his report on the German South Polar
166 BULLETIN 100, UNITED STATES NATIONAL MUSEUMExpedition, described a new species of Arietellus under the abovename, but his description and his two figures are very incomplete andreally include only a single specific character, the long frontal spine.This, however, is enough to identify the species with the Albatrossspecimens, and the name given by Wolfenden must be retained. Butthere are many other distinctive characters shown by the variousappendages, especially the fifth legs, which warrant a more completedescription of both sexes.Female.?Body rather stout, head partially separated from the firstsegment by a dorsal groove ; forehead produced into an elongated coni-cal spine one-fourth as long as the head and pointed straight forward.Thorax widest at the junction of the head and the first segment, secondand third segments narrowed but little, fourth and fifth segmentsfused and produced at the posterior corners into broad acutely pointedspines, which extend backward to the second abdominal segment andcurve upward at their tips. Urosome a fourth as long and a fourthas wide as the metasome, with the frontal spine and the caudal ramiboth included in the length. The fifth thoracic segment is visible indorsal view in the posterior sinus of the metasome and gives theurosome an appearance of being 5-segmented. Genital segment widerthan long and not protruding ventrally, with nearly straight sides.Abdomen 3-segmented, each segment wider than long, the anal seg-ment incised posteriorly. Caudal rami at the corners of the anal seg-ment and divergent, each a little longer than wide and with fivestout setae. The three middle setae are much longer than the othertwo but are only normally plumose ; the outer seta is at the middle ofthe outer margin.The first antennae are slender and reach just beyond the tips of thespines at the posterior corners of the metasome. The endopod of thesecond antenna is a little longer than the exopod ; the mandible palpis uniramose with the endopod entirely lacking. The first four pairsof legs are biramose, the rami 3-segmented; the fifth pair (pi. 3, fig.25) are uniramose and 3-segmented. Their basal segments are fusedacross the midline ; the two plumose setae on the inner corners of thesecond segments and the appendicular filiform seta on the right legare exceptionally long. The third segments are nearly as long as theother two combined, slightly swollen at the base and tapered into longacuminate points. Total length 5.20 mm.Male.?Body similar to that of the female but smaller, the anteriorspine fully as large as in the other sex but the spines on the posteriorcorners of the metasome considerably smaller. The urosome is 5-segmented and the caudal rami and their armature of setae are pro-portionally larger and more densely plumose. The first antennae
COPEPODS GATHERED BY ALBATROSS?WILSON 167
reach the tips of the caudal rami and the left antenna is geniculate,the terminal portion 3-segmented. The second antennae, mouth parts,and first four pairs of legs are like those of the female. The fifthlegs are asymmetrical, the right one longer and stouter than the left(pi. 4, fig. 26), with two curves giving it an S shape. The first twosegments of the exopod have spines at their outer distal corners,long, slender, and acuminate. The second segment also has a shortand stout spine on the surface at the distal end just inside the innermargin. The terminal segment is nearly three times as long as wide,bluntly rounded at its tip and without any spines or setae. The rightendopod is apparently 2-segmented and attached to the inner marginof the basipod near the distal end. The first two segments of theleft leg also carry spines at the outer distal corner, stouter than thoseon the right leg and slightly curved, and in addition the second seg-ment has a sinuous distal margin. The terminal segment is armedwith three fingerlike processes, one on the outer margin near the baseand two unequal in size at the tip. The left endopod is 1-segmented,and its enlarged tip is bilobed ; like the right endopod, it is attachednot to the end of the basipod but on the inner margin. Total length4.21 mm.Neotypes.?U.S.N.M. No. 70735; station 7, latitude 8?04' N., longi-tude 52?47' W., North Atlantic.Remarks.?The long frontal spine enables this species to be recog-nized at sight, and if desired the identity may be strengthened by thebroad spines at the posterior corners of the metasome and the detailsof the fifth legs. ARIETELLUS GIESBRECHTI SarsPlate 10, Figure 107Arictellus giesircchti Saks, Bull. Mus. Oceanogr. Monaco, No. 40, p. 21, 1905b.Stations 16 ; 4605 ; 4705 ; 5457. Established by Sars upon specimensobtained in the temperate Atlantic and fully described and figured inthe Monaco plankton, this species does not appear in any of the otherlists. This is the first record since the original discovery and the firstfrom the Pacific Ocean.ARIETELLUS PAVONINUS SarsArietellus pavoninus Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 22, 1905b ; R6s.camp. sci. Albert de Monaco, No. 69, p. 333, pi. 120, figs. 1-6, 1925.Station 4722. Established by Sars upon specimens obtained nearthe Azores, reported by Farran from west of Ireland, and identifiedby Sars in this Albatross plankton from southwest of the Galapagos
168 BULLETIN 100, UNITED STATES NATIONAL MUSEUMIslands. Since it has never been recorded elsewhere, this is the firstPacific record, as in the case of the preceding species.ARIETELLUS PLUMIFER SarsPlate 20, Figure 281Arietellus plumifer Saks, Bull. Mus. Oceanogr. Monaco, No. 40, p. 21, 1905b ; Res.camp. sci. Albert de Monaco, No. 69, p. 332, pi. 119, figs. 7-11, 1925.Stations 4673; 4700; 4705; 4707; 4717; 4719; 4722; 4730; 4742;4743; 5120; 5185. Established by Sars upon specimens of both sexesfound in the northern Atlantic and does not appear except in theMonaco plankton. The list of stations shows that the species is fairlyabundant in the Pacific. One of the males from station 5120 isworthy of notice because of variations in the details of the fifth legs asshown on plate 19, figure 281. There is sufficiently close correspond-ence to Sars' figure (pi. 119, fig. 10) of the fifth legs to show that thetwo are really the same species. But there are interesting differencesin the details of the endopods, the second segment of the right exopod,and the terminal segment of the left exopod.ARIETELLUS SETOSUS GiesbrechtPlate 20, Figures 283, 284Arietellus setosus Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr.19, p. 415, pi. 29, figs. 1, 3-7, 9-13, 21 ; pi. 39, figs. 34-36, 1892.Stations 4638 ; 4721 ; 4730 ; 4734 ; 4740 ; 5451. This species has beenreported in the Siboga, Monaco, and Carnegie plankton lists and iswell distributed in every ocean. It may be recognized by the length ofthe caudal setae, which often equals that of the entire body. Thesesetae are also often tufted and densely plumose; in fact, the plumesare so dense that they sometimes become badly matted in the preserva-tive. The forehead is pointed and terminates in a short blunt spine.The first antennae do not quite reach the tips of the spines at theposterior corners of the metasome.ARIETELLUS SIMPLEX SarsPlate 21, Figure 300 ; Plate 22, Figures 301, 302Arietellus simplex Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 22, 1905b
;
Res. camp. sci. Albert de Monaco, No. 69, p. 334, pi. 120, figs. 7-12, 1925.Stations 3; 4655; 4673; 4679; 4700; 4707; 4711; 4715; 4717; 4719;4740 ; 4758 ; 4766 ; 5120 ; 5185 ; 5287. This is the largest species of thegenus and was found at 1 Siboga and 14 Monaco stations. All theMonaco specimens were found in the Atlantic, while the single maleof the Siboga plankton was taken in the Pacific. With the exception
COPEPODS GATHERED BY ALBATROSS?WILSON 169
of those taken at station 3, all the Albatross specimens were found inthe Pacific, chiefly south of the Equator. As would naturally be ex-pected, these Pacific specimens show regional differences, which, how-ever, are more than offset by the numerous points of correspondence,leaving no doubt as to their identity. The fifth legs of the malesare exact replicas of the figure given by Sars in his Monaco report, butthose of the female are proportionally elongated. One of the femalesat station 5120 showed the malformation appearing on plate 22,figure 302, the right leg lacking the two plumose setae at the innerdistal corner of the proximal segment. The segment itself is alsorounded off and narrowed enough to show that it never possessedthose setae, although it does present an exceptionally long appendicu-lar seta. ARIETELLUS TEIPARTITUS, new speciesPlate 4, Figures 27-29Stations 4740 ; 5301. Four females were found at the first of thesestations between the Galapagos and Paumotu Islands; a single femalewas found at the second station, in the China Sea.Female.?Metasome about two and a half times as long as wideand narrowed anteriorly and posteriorly, with smoothly roundedposterior corners. The head is fused with the first segment and thecombined cephalothorax makes up about two-thirds of the metasome.A short crest projects from the center of the forehead which showsup better in a lateral view (pi. 4, fig. 28), where it is seen to becurved downward a little. The second segment is longer than eitherthe third or the fused fourth and fifth segments, which are aboutequal in length. The posterior corners are broadly rounded andwithout spines, although they project backward nearly to the posteriormargin of the genital segment. The urosome is 4-segmented andwidened posteriorly, the anal segment longer than the other twoabdominal segments combined and also wider. The caudal rami areas long as the anal segment, twice as long as wide and divergent. Allthe caudal setae were so mutilated that no idea of their length orof the density of the plumes upon them could be obtained.First antennae just reaching the posterior margin of the thirdthoracic segment ; endopod of second antenna more than half as longagain as the exopod. Maxilliped slender, the basal segment not en-larged, and armed with setae only ; first four pairs of legs like thosein other species of the same genus. The fifth legs, however, arepeculiar in that the second segment carries three stout plumose setaeinstead of two at its inner distal corner. The corner is broadlyrounded, projecting more than in other species; the three setae are
170 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
all the same size and length, one terminal and one on either side. Theappendicular seta on the right leg is about twice as long as the oneon the left leg and both are plumose. The end segment is a plump conetipped with a curved spine, and the joint between the two segments isconsiderably wrinkled. Total length 4 mm. Male unknown.Type.?-U..S.N..M. No. 70761 ; station 4740, latitude 9?02'S., longi-tude 123?20'W., off Paumotu Islands.Remarks.?The hooked lamina projecting from the forehead, thebroadly rounded posterior corners of the metasome, and the threeplumose setae on the second segments of the fifth legs are the distin-guishing characters of this new species. No other species in the genusexhibits any one of these characters and hence the validity of thespecies is trebly assured.Genus AUGAPTILUS Giesbrecht, 1889AUGAPTILUS ANCEPS FarranAugaptilus anceps Farran, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 79,pi. 8, figs. 15-19, 1908.Stations 4685 ; 4719 ; 4721 ; 5120. Established by Farran upon twoor three female specimens from west of Ireland and afterward fullydescribed and figured by Sars in his Monaco report. The specimensfrom the first three Albatross stations were identified by Sars. Theyconstitute the first record from the Pacific.AUGAPTILUS GLACIALIS SarsAugaptilus glacialis Sars, Norwegian North Polar Exped., vol. 5, Crustacea,p. 88, pis. 26, 27, 1900.Station H. 2727. Originally described by Sars in his account of thecopepods of the Norwegian North Polar Expedition and afterwardincluded in the Monaco plankton, but not found in the other lists.Previously reported from the North Atlantic and Arctic Oceans.The above Albatross station is the first record from the Pacific Ocean.In the collections of the National Museum there are also seven femalestaken by C. S. McClain, of the U. S. S. Alert in Baffin Bay, lat.73?17' N., long. 58?40' W., June 24, 1884. [The material from sta-tion H. 2727 was not found among the material returned to the Mu-seum by Dr. Wilson.?W. L. S.]AUGAPTILUS LONGICAUDATUS (Clans)Hemicalanus longicaudatus Claus, Die freilebenden Copepoden, p. 179, pi. 29, fig.3, 1863.Stations 7; 2219; 4638; 4669; 4671; 4687; 4695; 4700; 4703; 4705;4707 ; 4715 ; 4716 ; 4721 ; 4722 ; 4730 ; 5246. Many specimens were ob-
COPEPODS GATHERED BY ALBATROSS?WILSON 171tained from these 15 Albatross stations. Though quite abundant at30 stations in the Monaco plankton, only six specimens were foundin the Siboga plankton and three in the Carnegie plankton. Thesedifferences suggest that it may be seasonal in its distribution.AUGAPTILUS MEGALURUS GiesbrechtAugaptilus megalurus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem.1, p. 814, 1889 ; Fauna unci Flora des Golfes von Neapel, monogr. 19, pp. 400,414, pi. 27, fig. 28 ; pi. 28, fig. 7 ; pi. 29, fig. 20 ; pi. 39, fig. 47, 1892.Stations 4700 ; 4707 ; 5120 ; 5227. Found at 13 stations in the Mon-aco plankton but not present in the other lists.Genus BATHYCALANUS Sars, 1905BATHYCALANUS RICHARDI SarsBatliycalanus richardi Sars, Bull. Mus. Oceanogr. Monaco, No. 2G, p. 8, 1905a
;
Res. camp. sci. Albert de Monaco, No. 69, p. 16, pi. 4 ; pi. 5, figs. 1-6, 1925.Stations 4707; 4765; 4810; 5120; H. 3789. Found at 13 stationsin the Monaco plankton but not appearing in the other lists. Thisis one of the largest of the free-swimming copepods. It usually re-mains at considerable depths, thus entirely escaping surface tows,and can be captured only in a deep vertical haul.Genus BATHYPONTIA Sars, 1905BATHYPONTIA ELONGATA SaraBathypontia elongata Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 24, 1905b;Res. camp. sci. Albert de Monaco, No. 69, p. 356, pi. 126, 1925.Stations 4679 ; 4681 ; 4687 ; 4717 ; 4719 ; 4740. Established by Sars asthe type species of a new genus in his preliminary report on the Monacoplankton. His specimens were found in the tow at 21 Atlantic sta-tions but the species does not appear in any of the other planktonlists. The specimens which he identified from the 6 Albatross sta-tions constitute the first record from the Pacific.BATHYPONTIA MINOR SarsPlate 22, Figure 303Bathypontia minor Sars, Bull. Inst. Oceanogr. Monaco, No. 101, p. 27, 1907 ; Res.camp. sci. Albert de Monaco, No. 69, p. 360, pi. 127, figs. 12-18, 1925.Stations 5120 ; 5320. Established upon two female specimens takensingly at two North Atlantic stations in the Monaco plankton. Inthis Albatross plankton also only a single female was found at eachof the above stations. The species does not appear in any of theother lists. These are the first specimens reported after the originaldiscovery, and they constitute the first record from the Pacific. The
172 BULLETIN 100, UNITED STATES NATIONAL MUSEUMfifth legs, shown on plate 22, figure 303, are almost exactly like thoseof Paracalanus parvus, but the female from which they were takenwas fully three times as large as a parvus female.Genus BRADYIDIUS Giesbrecht, 1897Vndinopsis "Sars in litt.," Schneider, Tromso Mus. Aarsheft., vol. 7, p. 131,1884 (nomcn nudum) .Bradyidius Giesbkecht, Zool. Anz., vol. 20, p. 253, 1897.Bradnanus Vanhoffen, Zool. Anz., vol. 20, p. 322, 1807a.Undinopsis Saks, Crustacea of Norway, vol. 4, p. 31, 1902 ; and other authors.Bradyidius A. Scott, Sioo^fl-Expedition, rnonogr. 29a, pt. 1, p. 39, 1909.Undinopsis Wilson, U. S. Nat. Mus. Bull. 158, pp. 552, 554, 555. 1932 : CarnegieInst. Washington Publ. 536, p. 210, 1942.[As the correct name for this genus has long been in question and nosatisfactory decision could be reached regarding it from the synonymiesor arguments advanced by any of the authors concerned, originalsources were directly consulted. To save others the time it has takenus, the results of this study are set forth below.Undinopsis appears first to have been used by J. Sparre Schneider(1884, p. 131),5 who credited the name to Sars "in litt." No matterwhich of the two was the author, the name is without standing, asneither the genus nor its unique species, bradyi, was diagnosed, norwas any particular type or previously published species cited at thetime.Bradyidius was proposed by Giesbrecht (1897, p. 253) for a speciesmistakenly identified by Brady (1878, p. 46) as the Pseudocalanus(now Aetidius) armatus of Boeck (1872, p. 38). Giesbrecht's (1897,p. 253) Bradyidius unquestionably takes precedence over BradyanusVanhoffen (1897a, p. 322). Vanhoffen based his claim to priority onthe fact that his name had been published before Giesbrecht's in con-junction with the name of a new species, Bradyanus armatus, by Chun(1897, p. 28). Chun, however, merely listed identifications suppliedhim by Vanhoffen from the latter's then unpublished manuscript onthe Fauna and Flora of Greenland (1897b, p. 292). Although thispaper appeared in the same year, it was antedated by Giesbrecht'sby some months. Precise dates cannot now be obtained, but it is tobe noted that Giesbrecht's article appeared on page 253 of the Zoologi-scher Anzeiger with the printed annotation "eingeg. 9. Juli 1897,"whereas Vanhoffen's article, which appeared on page 322 of the same
?In J. Sparre Schneider only the following is given regarding the genus (and species) Inquestion : "74. Tlnrflnopsis bradyi G. O. Sars in litt./Af denne hidtil ubeskrevne art, der eren virkelig bund-/form, medbragtes endel eksplr. fra samme lokalitet som fo- rosraaende.Jeg har ogsaa fundet den ved Troms0." (Of this hitherto ur>described species, -which is atrue bottom form, a number of specimens were obtained from the same locality as the fore-going [species, Cahnius finmarchicus]. It has also been found near Tromso.?Translationby Dr. Adam G. Boving.)
COPEPODS GATHERED BY ALBATROSS WILSON 173
volume, is annotated "eingeg. 12. August 1897." In this article Van-hoffen admits that the larger account from which the name publishedby Chun was taken was still awaiting publication "in der nachstenserscheinenden 'Fauna und Flora von Gronland.' "In 1002 Sars (p. 32) revealed that his earlier nomen nudum, Undi-nopsis bradyi (Sars, in Schneider, 1894, p. 131), was identical withBradyidius armatus. (In this connection, see also T. Scott, 1900,p. 383.) Disregarding all that had gone before, Sars (1902, p. 33)sought to validate the generic name Undinopsis with no more argu-ment than that it "ought to be preferred."The Albatross secured some material of both of the species herediscussed. No attempt is made to give all references in literaturefor either ; only the more important synonymy is cited.?W. L. S.]BRADYIDIUS ARMATUS GiesbrechtPseudocalanus armatus Brady, Monograph of British free and semiparasiticCopepoda, vol. 1, p. 46, 1878 (part; not P. armatus Boeck).Undinopsis bradyi "Sars in litt," Schneider, Tromso Mus. Aarsheft., vol. 7, p.131, 18S4 {nomen nudum)
.
Bradyidius armatus Giesbrecht, Zool. Anz., vol. 20, p. 253. 1897.?T. Scott, 17thAnn. Kept. Fish. Board, Scotland, pt. 3, No. 7, p. 248, 1899 ; 18th Ann. Kept,pt. 3, No. 11, p. 383, 1900.
?
van Breemen, Nordisches Plankton, Lief. 7, VIII,Copepoden, p. 31, fig. 31 a-c, 1908.
?
Pesta, in G. Grimpe u. E. Wagler, DieTierwelt der Nord- und Ostsee, Lief. 8, pt. Xci, p. 33, 1927. (Van Breemenand Pesta credit the specific name to Brady instead of Giesbrecht, at thesame time sustaining its precedence over Undinopsis hradyi Sars.)[Stations 5185; 5190. Two females of this species, which was pre-viously reported from the Atlantic and Pacific, usually from deepwater, were taken in a vertical haul from 550 fathoms to the surfaceat the first of these two Philippine stations. Although identified alsofrom the second station by Dr. Wilson, the specimens on which therecord is based appear not to have been saved. This haul was also avertical one from 250 fathoms.?W. L. S.]BRADYIDIUS SIMILIS (Sars)Plate 35, Figure 542Bradyanus armatus Chun, Die Beziehungen zwischen dem arktischen und antark-tischen Plankton, p. 28, 1897.?Vanhoffen, Zool. Anz,, vol. 20, p. 322, 1897a
;
in Erich von Drygalski, Gronland-Expedition der Gesellschaft fur Erdkundezu Berlin, 1891-1893, vol. 2, pt. 1, p. 2S0, 1897b.Undinopsis similis Sars, Crustacea of Norway, vol. 4, p. 34, pi. 21, 1902.Undinopsis armatus Vanhoffen, Zool. Jahrb., Abt. Syst., vol. 25, p. 517, 1907.Bradyidius similis van Breemen, Nordisches Plankton, Lief. 7, VIII. Copepoden,p. 32, fig. 3_ a, b. 1908.Stations 5030 ; 5227. Four females were identified from the first ofthese stations and a male and two females from the second. Hitherto
174 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMthe species has been confined to the Arctic Ocean and the North Sea,and this is the first record from the Pacific. The fifth legs of the male(fig. 542) show rudiments of endopods.Genus CALANOIDES Brady, 1883CALANOIDES BREVICORNIS (Lubbock)Calanus orevicornis Lubbock, Trans. Ent. Soc. London, new ser., vol. 4, p. 17,pi. 3, 1856.Stations 5129; 5246; 5320. About 75 specimens, nearly all fullygrown females, were found in the plankton taken at station 5320 inthe China Sea off Formosa. It was reported also in the Siboga andMonaco lists. The pointed forehead, with its rudiments of a mediancrest and its forward projection in lateral view, furnishes an easy iden-tification for the species. It was also noted in these specimens thatthe anterior portion of the head in front of the mouth parts was of adifferent color from that of the body, sometimes whitish, sometimesreddish coppery, and was more or less transparent. The fifth legs ofthe male in this species are no longer than the fourth pair and thusrelatively much shorter than in Brady's genotype, C. jxitagoniensis(Brady, 1883, p. 75).Genus CALANOPIA Dana, 1853CALANOPIA AMERICANA F. DahlCalanopia americana P. Dahl, Ber. Naturf. Ges. Freiburg, new ser., vol. 8,p. 21, pi. 1, figs. 23-26, 1894a.Station 5186. Twelve specimens, mostly male, were found at thisstation off Panay Island, Philippine Islands. The species, whichwas founded by Dahl upon specimens of both sexes collected in thelower Amazon River, was reported by Scott in the Siboga planktonfrom off the Bermuda Islands, by Farran (1929, p. 274) from offRio de Janeiro, and in the Carnegie plankton from the Caribbeanregion. Although Dahl's specimens were obtained a considerable dis-tance from the ocean, the water from which they were taken showeda salinity of 11.8 percent. All the other specimens came from the openocean, and hence this must be listed as an oceanic species capable ofwithstanding considerable reduction in salinity.CALANOPIA AURIVILLII CleveCalanopia aurivillii Cleve, Kongl. Svenska Vet.-Akad. Handl., vol. 35, No. 5, p.37, pi. 2, figs. 17-23 ; pi. 3, figs. 1-10, 1901.Stations 5175 ; 5176, 5185 ; 5233 ; 5234 ; 5262 ; 5308 ; 5340 ; 5415 ; 5530
;
5601; Sabtan Island, Philippine Islands. This species appears inthe Siboga plankton but in none of the other lists. Cleve's type speci-
COPEPODS GATHERED BY ALBATROSS?WILSON 175mens came from the Malay Archipelago, while these Albatross sta-tions are all among the Philippine Islands.CALANOPIA ELLIPTICA (Dana)Pontella elliptica Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 27, 1849.Calctnopia elliptica Dana, United States Exploring Expedition, 1838-42 (Wilkes),vol. 14, pt. 2, Crustacea, p. 1132, 1853 ; pi. 79, fig. 6 a, b, 1855.Stations 2396; 4037; 5102; 5133; 5175; 5180; 5185; 5186; 5190;5196; 5223; 5225; 5228; 5230-5232; 5246; 5262; 5263; 5319; 5320;5338; 5340; 5348; 5422; 5434; 5553; Fiji Islands; Gilbert Islands.Present in all the plankton lists except the Monaco.CALANOPIA MINOR A. ScottPlate 22, Figuee 304Calanopia minor A. Scott, Trans. Liverpool Biol. Soc, vol. 16, p. 406, pi. 1, figs.1-5, 1902.Stations 2396; 4009; 4037; 4952; 5102; 5133; 5134; 5175; 5180;5185; 5186; 5196; 5223; 5225; 5226; 5228; 5230-5232; 5246; 5263;5320; 5338; 5340; 5348; 5387; 5434; 5489; 5578; Charles Island,Galapagos ; Iloilo Straits, Philippine Islands. This species has beenreported from the Red Sea, the northern area of the Indian Ocean,and appears in the Siboga lists, where it frequently occurs withC. elliptica. CALANOPIA SARSI, new speciesPlate 5, Figures 30-33Forty specimens, including both sexes, were taken in the surfaceplankton off the Fiji Islands, south of the Suva Light. These wereidentified by Sars as a new species, and as he suggested no name theyhave been named for him.Female.?Metasome elliptical, narrowed considerably anteriorly butonly a little posteriorly. The forehead is bluntly pointed and theposterior corners of the fused fourth and fifth segments are producedinto symmetrical acuminate spines, which are inclined a little out-ward. Urosome two-fifths as long as the metasome and 2-segmented,the genital segment the same length as the abdomen but twice aswide. Caudal rami shorter than the abdomen but three times as longas wide, each with five setae, all rather short.First antennae slender and 19-segmented, reaching the center ofthe genital segment ; the second antennae, mouth parts, and first fourpairs of legs similar to those in other species of the genus. Fifthlegs symmetrical, each 4-segmented, the two basal segments (basipod)considerably thickened, the two distal segments (exopod) narrower
176 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMand about equal in length. The first of these exopod segments hasa single acuminate spine at its distal end that is as long as the terminalsegment. The latter is tipped with three acuminate spines, the innerone longer and slenderer than the others. Total length 1.90 to 2 mm.Metasome 1.50 mm. long, 0.50 mm. wide.Male.?Metasome similar to that of the female, but the foreheadis smoothly rounded and the spines at the posterior corners are asym-metrical, the right one wider and longer than the left and distinctlynotched on its inner margin. Urosome two-fifths as long as meta-some and 5-segmented, the anal segment very short and narrower thanthe others, which are all about the same width, one-fifth as wide asthe metasome.The first antennae reach the center of the third segment of the uro-some; the right antenna is geniculate, the terminal portion made upof four segments of about equal length. The segment in front ofthe flexure is the same length as the terminal segments but consider-ably wider. The second antennae, mouth parts, and first four pairsof legs are like those of the female. Each fifth leg is 4-segmented asin the female ; the second segment of the right leg is invaginated atits distal end where it articulates with the third segment. The latteris considerably swollen and carries on its outer margin the acuminatethumb of the chela. The curved terminal segment forms the dactylusand is somewhat flattened, with two setae on its inner surface andthree at its tip. The third segment of the left leg has a stout spineat its outer distal corner and the end segment carries three terminalsetae three times as long as the segment and an inner fourth one onlyhalf as long as the segment. Total length 1.82 mm.Types.?U.S.N.M. No. 70742; off the Fiji Islands, south of the SuvaLight.Remarks.?The structure of the fifth legs in both sexes and theasymmetry of the spines at the posterior corners of the metasome inthe male are the distinctive characters of this new species.CALANOPIA THOMPSONI A. ScottPlate 20, Figure 282Calanopia thompsoni A. Scott, Copepoda of the Siboga Expedition, monogr. 29a,pt. 1, p. 178, pi. 69, figs. 1-8, 1909.Stations 5105; 5186; 5223; 5342. Originally established by Scottupon 160 specimens including both sexes from four Siboga stationsin the tropical Pacific, but not found in any of the other lists. Thisis the largest species of the genus and is readily distinguished fromany of the others by its size and by the lateral hooks on the sides ofthe head like those in the genus Pontella. The Albatross specimens
COPEPODS GATHERED BY ALBATROSS?WILSON 177were at first assigned to the genus Pontella, but the fifth legs shownin the accompanying figure prove that they really belong to this genusand species. Genus CALANUS Leach, 1819CALANUS CRISTATUS Kr^yerCalanus cristatus Kr0yer, Voy. Comm. sci. Nord Scandinavie ... la corvetteLa Recherche, Atlas, pi. 41, 1842-45 ; Naturh. Tidsskr., Kj0benhavn, ser. 2,vol. 2, pp. 546, 553, 1848 ; p. 607, 1849.Stations 31; 33; 35; 37; 38; 41-44; 46; 48-50; 51; 52; 57; 60;2859; 2861; 3602; 4747; 4757-4760; 4763; 4765; 4766; 4781; 4785;4793; 4805; 4806; 5030; H. 1689; H. 2700. These stations for thegreater part are in Alaskan waters and in the Bering and Okhotskseas; three stations lie off the west coast of the United States; onlyone or two specimens were obtained at each station except 4793, where50 were captured. Until very recently, this species has been a puzzleto investigators, since no adults of either sex could be found. Thepresent author has handled many hundreds of specimens, but theyalways proved to be females in the last copepodid stage. This wastrue of the Carnegie specimens and of this Albatross material. Butin November 1937 a vertical haul in the deep waters of Sagami Bayin northern Japan was found to contain adults of both sexes, whichhave been described by Dr. Otohiko Tanaka (1938, p. 599), of theMitsui Institute of Marine Biology, near Simoda, Izu. The fifthlegs in both sexes have 3-segmented rami, and the right fifth leg inthe male is modified as in other males of the genus. The frontal crest,so prominent in the immature female, is retained in the adult formbut almost entirely disappears in the mature male. The speciesfounded and maintained upon a late developmental stage for nearlya century now becomes fully established.CALANUS FINMARCHICUS (Gunnerus)Monoculus finmarchicus Gunnerus, Skrifter Kj0benhavnske Selskab., vol. 10,p. 175, figs. 20-23, 1765.Stations 12 ; 13 ; 29 ; 33-35 ; 37 ; 38 ; 41 ; 42 ; 46 ; 48-50 ; 52 ; 57 ; 2770
;
2859 ; 2861 ; 3602 ; 3696 ; 4655 ; 4673 ; 4753 ; 4756-4760 ; 4762 ; 4767 ; 4785
;
4800; 4806; 5030; 5655; H. 1689; H. 2701; Amchitka Island; BelimCanal; Yes Bay, Alaska. This is the best known and most widelydistributed copepod in northern latitudes and is found in all of theplankton lists except the Siboga. Because of its size and the enor-mous numbers it attains in favorable localities it becomes of greateconomic importance as a food supply for many fishes and even forsome whales.
178 BULLETIN 100, UNITED STATES NATIONAL MUSEUMCALANUS HELGOLANDICU3 (Claw)Cetochilus hclgolandicus Claus, Die freilebenden Copepoden, p. 171, pi. 26, figs.2-9, 1863.Station 37; 57; 4574; 4652; 4655; 4657; 4673; 4759. This speciesappears in the Carnegie and Monaco planktons but not in the otherlists. Sars, who identified these Albatross specimens, stated in theMonaco report (p. 6) that this is a more southern form than fin-marchicus and that it is never found in the Arctic Ocean but is widelydistributed in all other regions. It is worthy of note that four of theabove stations are located off the west coast of Peru in the currentthat flows north from the Antarctic.CALANUS HYPERBOREUS (Kr0yer)Calanus hyperboreus Kr0yer, Kong. Danske Vidensk. Selsk., Nat. math. Afh., vol.7, p. 310, pi. 4, fig. 23, 1838.Stations 31 ; 33 ; 2195 ; 3602 ; 4747 ; 4793 ; 4805 ; 4806 ; H. 2700. Thisspecies also appears in the Carnegie and Monaco planktons but not inthe others. It is a boreal species found in the Arctic and northernAtlantic and Pacific Oceans often in company with ftnmarchicus.CALANUS TONSUS BradyCalanus tonsus Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23, Cope-poda, p. 34 , pi. 4, figs. 8, 9, 1883.Stations 12; 80; 4758; 4766; 4793; 5030; 5246. Established byBrady upon specimens from the southern Pacific and Atlantic, it wasrecorded from one station in the Carnegie plankton but does not appearin the other lists. Genus CALIGUS Miiller, 1785CALJGUS CORYPHAENAE Steenstrup and LiitkenCaligus coryphaenate Steenstbup and Lutken, Dansk. Vid. Selsk. Skriv., vol.5, p. 360, pi. 4, fig. 7, 1861.Station 4679. A single male of the parasitic species was capturedswimming in the surface plankton at the above station.CALIGUS LATIFRONS WilsonCaligus latifrons Wilson, Proc. U. S. Nat. Mus., vol. 28, pp. 587-589, pi. 12, figs.140-149, 1905.Stations 4952 ; 5223, 5460. Since only one female was taken at eachof these stations and the male still remains unknown, this must beregarded as a rare species. Until taken by the Albatross this species,based upon a single female without data as to the host or locality,had not been reported since described by the present author. The
COPEPODS GATHERED BY ALBATROSS?WILSON 179
original lack of data was no doubt due to the fact that the originalspecimen, like the Albatross specimens, was captured while swimmingfreely in the plankton.CALIGUS RAPAX Milne EdwardsCaligus rapax Milne Edwakds, Hist. nat. Crust., vol. 3, p. 453, pi. 38, 1840.Station 2396. At this station in the Gulf of Mexico a single malebelieved to be this species was taken in a surface tow. The species isparasitic upon a great variety of hosts without showing particularpreference for any of them. Both sexes have been reported manytimes as captured while swimming freely among the pelagic forms.CALIGUS THYMNI DanaPlate 22, Figuke 317Caligus thymni Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 56, 1849; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1353, 1853 ; pi. 94, fig. 3 a-c, 1855.Caldera Bay anchorage, west coast of Mindanao, Philippine Is-lands. The tow at this anchorage was made by setting the net inthe tide current at the gangway; many copepods were obtained.Among them was the male of a species described as new by Dana inthe Wilkes plankton and named Caligus thymni. His figures in-cluded a ventral view of the male and a dorsal view of the genitalsegment, abdomen, and ovisacs of the female. The only full lengthdorsal view of either sex was one of the male published by T. Scott(1894, p. 129) which did not show the markings on the dorsal surfaceof the carapace. Accordingly, figure 317 is here included in order tocall attention to certain important characters.The carapace forms two-thirds of the entire length and is three-fourths as wide as long. On the dorsal surface the transverse grooveis in front of the center, and the lateral grooves are pushed well overtoward the sides, thereby making the area included by them excep-tionally large. The genital segment is one-half wider than long, withconvex lateral margins and two pairs of rudimentary legs on theposterior margin. The caudal rami are less than half as long as theanal segment and are wider than long, each with four setae. Forready reference this male has been given U.S.N.M. No. 74113.Genus CALOCALANUS Giesbrecht, 1888CALOCALANUS PAVO (Dana)Calanus pavo Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 13, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1061, 1853 ; pi. 72, fig. 12 a, b, 1855.843S04?50 4
180 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 8 ; 9 ; 14 ; 54 ; 64-67 ; 71 ; 3782 ; 3789 ; 3799 ; 3829 ; 3878 ; 3901
;
4009; 4644; 5175; 5196; 5301; 5399; 5651; Fiji Islands. Originallyestablished by Dana in the genus Calanus, this species was present inthe Siboga and the Carnegie planktons, where it was abundant.CALOCALANUS STYLIREMIS GiesbrechtCalocalanus styliremis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem.2, p. 333, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 176,185, pi. 9, figs. 15, 18, 29 ; pi. 36, figs. 46-48, 1892.Stations 46 ; 65 ; 4010 ; 5651 ; Fiji Islands ; Hawaiian Islands. Thisspecies, well distributed in the Carnegie plankton, was found at asingle station in the Monaco plankton, but did not appear in the otherlists. Genus CANDACIA Dana, 1846CANDACIA AETHIOPICA (Dana)Candace ethiopica Dana, Proe. Ainer. Acad. Arts and Sci., vol. 2, p. 23, 1849
;
United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1115, 1853 ; pi. 78, fig. 5 a-f, 1S55.Stations 6; 7; 26; 27; 30-32; 39; 41; 52-54; 57; 60; 63; 65; 3799;3829; 3867; 3878; 3901; 3932; 3980; 4009-4011; 4037; 4190; 4611;4684; 4688; 4692; 4705; 4724; 4725; 4730; 4731; 4738; 4952; 5102;5105; 5120; 5133; 5185; 5223; 5224; 5308; 5340; 5382; 5387; 5553;5578; 5646; Fiji Islands. Found in all the plankton lists except theChallenger. In the Albatross collections it is well distributed butnowhere abundant except at station 4688 off the west coast of Peru,where more than a hundred specimens were obtained in a surface tow.The characteristic dark color of the appendages remains even afterlong preservation. CANDACIA ARMATA (Boeck)Candace armata Boeck, Forh. Vid. Selsk., Christiania, vol. 14, p. 39, 1872.Stations 2236 ; 3829 ; 4010 ; 4611 ; 4615 ; 4640 ; 4757 ; 4793 ; 5105 ; 5120
;
5129; 5175; 5180; 5185; 5190; 5196; 5230; 5231; 5399; 5412. Foundin all the planktons except that of the Wilkes Expedition and verywidely distributed. In the Albatross tows it is chiefly confined to sta-tions off the west coasts of Mexico and Central America.CANDACIA BIPINNATA (Giesbrecht)Candace bipinnata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1,p. 815, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 424,439, pi. 22, fig. 20 ; pi. 39, figs. 27, 29, 1S92.Stations 3; 5; 7; 15; 24; 30; 41; 43; 49; 65; 76; 3799; 3800; 3901;4010; 4011; 4615; 4700; 5129; 5133; 5155; 5180; 5185; 5224; 5225;
COPEPODS GATHERED BY ALBATROSS?WILSON 1815234; 5601. These were mostly surface tows; a few were verticalhauls from 550, 300, 100 fathoms or less to the surface. The specieswas present in the Siboga, Monaco, and Carnegie planktons in smallnumbers. CANDACIA BISPINOSA (Claus)Candace bispinosa Claus, Die freilebenden Copepoden, p. 191, pi. 27, figs. 9-16pi. 28, fig. 5, 1863.Stations 3; 5; 7; 15; 19; 24; 30; 41; 42; 49; 62; 63; 65; 76; 77; 34123799; 3834; 3867; 3878; 3901; 4037; 4611; 4644; 4646; 4700; 49525105; 5110; 5129; 5134; 5175; 5180; 5185; 5186; 5196; 5223; 52255232; 5233; 5262; 5434; Nasugbu Bay, Luzon, Philippine IslandsWell distributed in the Carnegie plankton, but rare in the Siboga andMonaco planktons. CANDACIA CURTA (Dana)Candace curta Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 23, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1116, 1853 ; pi. 78, fig. 6 a-d, 1855.Stations 39 ; 4540 ; 4635 ; 4671 ; 4673 ; 4691 ; 4699. This species waspresent at 6 Pacific stations in the Carnegie plankton, 24 Pacific sta-tions in the Siboga plankton, and 3 Atlantic stations in the Monacoplankton. CANDACIA ELONGATA (Boeck)Candace dongata Boeck, Forh. Vid. Selsk., Christiania, vol. 14, p. 39, 1872.Station 4716. Identified by Sars from this single station near theGalapagos Islands in the Albatross plankton and from eight Atlanticstations in the Monaco plankton, but not occurring in the other lists.CANDACIA LONGIMANA (Claus)Candace longimana Claus, Die freilebenden Copepoden, p. 190, pi. 27, fig. 17 ; pi. 28,fig. 4, 1863.Stations 222 ; 3799 ; 3878 ; 4611 ; 4638 ; 4646 ; 4685 ; 4691 ; 4700 ; 4736
;
4738 ; 5155 ; 5185 ; 5263 ; 5489. Identified by Sars from 7 of these 14Albatross stations and from 35 stations in the Monaco plankton, butfound at only 2 stations in the Carnegie and 2 in the Siboga plankton.CANADACIA NORVEGICA (Boeck)Candace norvegica Boeck, Forh. Vid. Selsk., Christiana, for 1864, p. 235, 1865.Stations 31; 41; 3799; 3878; 3901; 4010; 4011; 4190; 4611; 4638;4646; 4785; 4806; 5129; 5180; 5185; 5186; 5223; 5309; 5340; 5430.This species was obtained at 25 Atlantic and Pacific stations in the
182 BULLETIN 100, UNITED STATES NATIONAL MUSEUMCarnegie plankton but was not present in any of the other lists. Ithas also been reported from the Pacific by Sewell (1932, p. 336).CANDACIA PACHYDACTYLA (Dana)Candace pacJiydactyla Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 23, 1849
;
United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1113, 1853 ; pi. 78, figs. 2 a, b ; 3 a, b ; 4 a-c, 1855.Stations 2195 ; 4598 ; 4640 ; 4655 ; 4664 ; 4671 ; 4679 ; 4707 ; 4721 ; 4730
;
4743; 5105; 5190; Port Binanga, Luzon, Philippine Islands. Dana'soriginal specimens came mostly from the southern Atlantic, with afew from the China Sea. He gave the color as "smoky with blackbands about the cephalothorax ; the extremities of the antennae andsome of the natatory legs black." There are still traces of this colora-tion in the Albatross specimens after 30 years' preservation. Thespecies is present in all the plankton lists, and abundant in the Slbogaplankton, where it is recorded from 52 stations.CANDACIA SIMPLEX (Glesbrecht)Candace simplex Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1,p. 815, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 424,440, pi. 21, figs. 10, 21, 25, 30, 31 ; pi. 22, figs. 21, 29 ; pi. 39, figs. 3, 14, 1892.Stations 2 ; 14 ; 15 ; 27 ; 30 ; 31 ; 39 ; 41 ; 42 ; 48 ; 49 ; 51 ; 52 ; 57 ; 59-6165 ; 66 ; 71 ; 173 ; 3765 ; 3799 ; 3800 ; 3834 ; 3839 ; 3878 ; 3927 ; 3929 ; 40094010 ; 4037 ; 4190 ; 4605 ; 4607 ; 4611 ; 4635 ; 4644; 4659 ; 4667 ; 4679 ; 46914699; 4700; 4705; 4721; 4722; 4730; 4743; 4751; 4753; 4926; 4952;5102; 5120; 5129; 5134; 5175; 5180; 5185; 5186; 5190; 5196; 5223-5231; 5233; 5240; 5246; 5262; 5263; 5301; 5319; 5320; 5334; 5340;5342; 5358; 5382; 5399; 5412; 5414; 5415; 5422; 5424; 5434; 5437;5530; 5553; 5578; 5611; 5633; Marshall Islands; Sabtan Island, Phil-ippine Islands; Fiji Islands.The above list shows this to be the most widely distributed speciesin the genus ; the same was true in the Carnegie plankton. It is alsoabundant in the Siboga and Monaco lists.CANDACIA TENUIMANA (Giesbrecht)Candace tenuimana Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1,p. 814, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 424,439, pi. 21, figs. 8, 2S, 29 ; pi. 22, figs. 2, 30, 37, 1892.Stations 4714; 4724. Two females were obtained at station 4714near the Galapagos Islands in a surface tow. Sars identified them asbelonging to this species and so recorded them, but somewhere duringthe journeying back and forth the specimens themselves have been
COPEPODS GATHERED BY ALBATROSS?WILSON 183
lost. There is also a record of the species from station 4724, likewisein the Galapagos. This species was present in the Carnegie andStboga plankton lists.CANDACIA TURGIDA, new speciesPlate 22, Figures 305-308Stations 5102 ; 5319 ; 5422. Ten female specimens were obtained atstation 5102 off southern Luzon, Philippine Islands. They cannot bereferred to any of the described species and so are designated a newspecies. Other specimens were found in the China Sea near For-mosa, station 5319, and between Panay and Guimaras, PhilippineIslands, station 5422.Female.?Metasome elliptical, two and a half times as long as wide,and narrowed at both ends. The anterior portion of the head withparallel sides is reduced to less than half the width of the thorax,and the forehead protrudes scarcely at all at the center. The firstthree segments of the thorax increase in length posteriorly and dimin-ish in width. The fused fourth and fifth segments are the samelength as the third, almost squarely truncated posteriorly, with shortacute spines at the corners. Urosome one-third as long and one-fourth as wide as the metasome and 3-segmented. Genital segmenta trifle longer than wide, with nearly parallel sides, the anterior endprotruding ventrally. From the posterior margin of the protruber-ance a conical process extends downward and backward a little be-yond the end of the segment. This process is considerably darkerthan the segment and is perfectly opaque. The basal abdominalsegment is as long as the genital segment, while the anal segmentis only half as long with its posterior corners obliquely truncated.The caudal rami are as long as the anal segment, slightly longer thanwide and tapered distally.The first antennae reach the caudal rami and are 24-segmented,the 6 basal segments considerably widened, the remaining 18 seg-ments abruptly narrowed and subfilose. The basal portion and thetransition into the terminal portion are shown enlarged in figure 307.The terminal portion is sometimes bent backward at its junction withthe basal portion as shown in the figures, although there is no genicu-late joint. In one specimen both antennae were bent in this way;in two others only one antenna was so bent, the other being straight.In the second antennae the basal segment of the endopod is consider-ably thickened and the short exopod is attached to its inner marginnear the base. The first four pairs of legs are similar to those in otherspecies of the genus, the exopods 3-segmented, the endopods 2-seg-mented. The fifth legs are uniramose and 3-segmented ; the proximal
184 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMsegment has a rounded knob on the outer margin near the base, thesecond segment has a short seta near the outer margin. The thirdsegment ends in a curved blunt finger process nearly half as long asthe segment. There is a spine on the outer margin at the centerof the segment and two more close to the tip outside the finger process.On the inner margin at the base of this process are two naked setae,the distal one longer than the process, the proximal one the samelength as the latter. Total length 2.1 to 2.3 mm. Metasome 0.8 mm.wide.Types.?U.S.N.M. No. 74112; station 5102, latitude 14?45' N., longi-tude 120?12'30" E.; off southern Luzon, Philippine Islands.Remarks.?These fifth legs are almost an exact replica of those inbispinosa; the structure of the first antennae and the genital segmentdecisively prohibit inclusion in that species. In fact, there is nothingeven remotely suggestive of the ventral process on the genital segmentin any of the other species in the genus.CANDACIA VARICANS (Giesbrecht)Conduce varicans Giesbrecht, Fauna unrt Flora des Golfes von Neapel, monogr.19, pp. 424, 439, pi. 21, figs. 3, 4, 11, 24 ; pi. 22, figs. 10, 25 ; pi. 39, figs. 2,23, 1892.Stations 6 ; 54 ; 5180 ; 5223. Found at three stations in the Carnegieplankton and at two stations in the Monaco plankton but not in theother lists. This is one of the rarer species, and these Albatross speci-mens constitute the second record from the Pacific area, Sewell havingreported it from the Indian Ocean (1932, p. 338)
.
Genus CANTHOCALANUS A. Scott, 1909CANTHOCALANUS PAUPER (Giesbrecht)Plate 5, Figures 34, 35Calanus pauper Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 331, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 91,129, pi. G, fig. 4 ; pi. 8, fig. 25, 1892.Stations 36; 39; 41; 42; 51; 49; 52; 55; 57; 59; 60; 61; 64; 3789;3901 ; 4635 ; 4785 ; 4926 ; 5102 ; 5120 ; 5129 ; 5175 ; 5180 ; 5185 ; 5186 ; 5190
;
5196; 5209; 5225; 5228; 5231; 5281; 5340; 5422; 5553; Iloilo Straits,Philippine Islands; Marshall Islands; Fiji Islands. Thirty speci-mens, including both sexes, were obtained in the surface tow made 5miles south of Suva Lightship in the Fiji Islands. Sars' drawingsof the fifth legs of both the male and female are here reproduced,together with the characteristic spines on the first basipods, which willserve to identify the species. Present in the Carnegie and Sibogaplanktons.
COPEPODS GATHERED BY ALBATROSS?WILSON 185Genus CENTRAUGAPTILUS Sars, 1920CENTRAUGAPTILUS CUCULLATUS (Sars)Augaptilus cucullatus Saks, Bull. Mus. Oceanogr. Monaco, No. 40, p. 17, 1905b.Centraugaptilus cucullatus Sars, Res. camp. sci. Albert de Monaco, No. 69, p.306, pi. 107, figs. 1-10, 1925.Stations 4661 ; 4668 ; 4669 ; 4705 ; 4722. The specimens from thesefive eastern Pacific stations were identified by Sars as belonging tothis species. Though he first placed them in the genus Augaptilus,as he had the Monaco specimens in his preliminary report, he latertransferred them to the above genus, as he did his Monaco specimensin his final report. These Albatross specimens are the first to be re-ported since the original discovery, as well as the first from the PacificOcean. CENTRAUGAPTILUS HORRIDUS (Farran)Augaptilus Iwrridus Farran, Fisheries Ireland, Sci. Invest, for 1906, pt. 2,p. 78, pi. 8, fig. 20, 1908.Stations 3382; 4661; 4667; 5120; 5185; 5287. Established by Far-ran in 1908 upon specimens taken west of Ireland and placed in thegenus Augaptilus. The species appears in the list of Monaco plank-ton, in which it was transferred by Sars to the present genus, but isnot found in any of the other lists. It was first reported from thePacific area by Sewell (1932, p. 326)
.
CENTRAUGAPTILUS RATTRAYI (T. Scott)Augaptilus rattrayi T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6, pt. 1,p. 36, pi. 2, figs. 25-37, 1S94.Stations 4661; 4664; 4665; 4667; 4681; 4687; 4700; 4705; 4707;4711; 4713; 4717; 4730; 4734; 4737; 5120; 5185. Established by T.Scott upon a single female from the Gulf of Guinea, it was placedlike the preceding species, in the genus Augaptilus. Sars thentransferred the species to the present genus in the Monaco list, mak-ing it the genotype. It was also reported from the Atlantic in theCarnegie plankton. The first Pacific record was by Sewell (1932, p.326) , who found it in the Indian Ocean.Genus CENTROPAGES Kr^yer, 1849CENTROPAGES BRACHIATUS (Dana)Pontella brachiata Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 27, 1849.Calanopia brachiata Dana, United States Exploring Expedition, 1838-1842(Wilkes), vol. 14, pt. 2, Crustacea, p. 1133, 1853; pi. 79, fig. 7, a, b; fig. 8,a, b, ; fig. 9 a-g, 1855.Station 4673. Established by Dana upon specimens from off theCape of Good Hope and placed first in the genus Pontella and after-
186 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMward in the subgenus Calanopia. It was transferred to the presentgenus by Brady in the Challenger plankton and appeared in Rose'sportion of the Monaco plankton, but not in the other lists. Dana re-ported this species off Constitution, Chile, in immense numbers,40,000 to 50,000, but in the other planktons it was very rare. Sarsidentified these Albatross specimens from the single station off Peru.CENTROPAGES BRADYI WheelerCentropages bradyi Wheeler, Bull. U. S. Fish Comm., vol. 19 (for 1899), p. 174,fig. 12, 1901.Station 2236. Wheeler based his new species upon four femalestaken in a surface tow off Marthas Vineyard. It is found in only oneof the plankton lists but has been reported by Esterly (1905, p. 172)from the California coast, by Farran (1929, p. 255) from off NewZealand, and by Bigelow (1924, p. 219) from the Gulf of Maine. Inthe Challenger plankton Brady reported it under the specific nameviolaceus from the Philippine Islands and the southern Pacific.Brady's name had already been given to another species by Claus, andso Wheeler changed it to the above.CENTROPAGES CALANINUS (Dana)Cyclopsina calanina Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 25, 1849.Hemicalanus calaninus Dana, United States Exploring Expedition, 1838-1S42(Wilkes), vol. 14, pt. 2, Crustacea, p. 1105, 1853; pi. 78, fig. 10, a, b, 1855.Stations 7; 9; 10; 12-16; 19; 22-24; 26; 27; 30; 41; 49; 50; 53; 57;59 ; 60 ; 63-67 ; 71 ; 73 ; 79 ; 80 ; 82 ; 3789 ; 3799 ; 3878 ; 4665 ; 4926 ; 5196
;
5223 ; 5319 ; 5611 ; H. 3782 ; Fiji Islands. Established by Dana uponspecimens collected near El Gran Cocal in the Ellice Islands ; presentin the Siboga and Carnegie planktons but not in the Monaco orChallenger plankton. Dana recorded the color of living specimensas "bluish, with a reddish tint in the head and abdomen," but in thepreserved specimens these colors have long since disappeared.CENTROPAGES FURCATUS (Dana)Catopia furcata Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 25, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1173, 1853 ; pi. 79, fig 1. a-d, 1855.Stations 9 ; 12 ; 15 ; 16 ; 21 ; 23 ; 24 ; 27 ; 48 ; 75 ; 76 ; 77 ; 79-81 ; 36833799; 3800; 3901; 4010; 4635; 4640; 4644; 4652; 5102; 5129; 51335134; 5155; 5175; 5176; 5180; 5185; 5186; 5190; 5196; 5208; 52095223-5226 ; 5228 ; 5230-5233 ; 5262 ; 5263 ; 5299 ; 5319 ; 5320 ; 5334 ; 53385340; 5382; 5386; 5387; 5399; 5415; 5424; 5434; 5437; 5651; SabtanIsland and Iloilo Straits, Philippine Islands; Fiji Islands; Charles
COPEPODS GATHERED BY ALBATROSS?WILSON 187Island, Galapagos. Established by Dana as the type of a new genus,Catopia, it was transferred to the present genus by Brady in theChallenger plankton and appears in all the other lists except theMonaco one. It is the most widely distributed species of the genusand often occurs in large numbers.CENTROPAGES GRACILIS (Dana)Plate 22, Figure 309Cyclopsina gracilis Dana, Proc. Amer. Acad. Arts and Sci., vol. 12, p. 25, 1849.Stations 3829 ; 5196 ; 5246. Originally described by Dana from thenorthern Pacific and later placed by him in the genus Hemicalanus(Dana, 1853, p. 1108; 1855, pi. 78, fig. 12 a, b) ; transferred to thepresent genus by Giesbrecht. It is included in the Siboga planktonand in Rose's portion of the Monaco plankton but not in the others.Four males obtained at station 5246 correspond fully to Giesbrecht'sfigures of this species. The fifth legs of one of these specimens areshown in figure 309.CENTROPAGES HAMATUS (Lilljeborgr)Ichthyophorba hamata Lilljeborg, De Crustaceis ex ordinibus tribus : Cladocera,Ostracoda et Copepoda, in Scania occurrentibus, p. 185, pi. 21, figs. 1-5, 7-9
;
pi. 26, figs. 9-12, 1853.Fiji Islands. Thirty-two specimens, including both sexes, weretaken in a surface tow at this unnumbered station. This species wasfound at 26 stations in the Monaco plankton and at 7 in the Carnegieplankton, but was not present in the other lists.CENTROPAGES KR0YERI GiesbrechtCentropages Krbyeri Giesbrecht, Fauna und Flora des Golfes von Neapel,monogr. 19, pp. 303, 320, pi. 17, figs. 24, 25, 40, 47; pi. 18, fig. 10; pi. 38,figs. 6, 8, 11, 14, 1892.Stations 4588; 5262; 5340. Two females were obtained in a sur-face tow at the first of these stations off the southwest coast of Mexicoand a single female at each of the other stations in the Philippines.The species was present at three stations in the Monaco planktonbut did not appear in the other lists. It was reported from the Pacificareas by Thompson and Scott (1903, p. 247) and by Sewell (1932,p. 230). CENTROPAGES ORSINII GiesbrechtCentropages orsinii Giesbrecht, Atti Accad Lincei, Rome, ser. 4, vol. 5, sem. 1,p. 811, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 305,321, pi. 17, figs. 35, 36, 41, 42 ; pi. 18, figs. 2, 14, 23 ; pi. 38, figs. 12, 19, 1892.Fiji and Marshall Islands. This species did not appear in the
188 BULLETIN 100, UNITED STATES NATIONAL MUSEUMCarnegie or Monaco planktons but was found at 17 stations in theSiboga plankton. CENTROPAGES TYPICUS Kr^yerCentropages typicus Kr0yer, Naturh. Tidsskr. Kj0benbavn, ser. 2, vol. 2, p. 588,pi. 6, figs. 22-26, 1849.Stations 3696 ; 4673 ; 5340. Well distributed at nearly 150 stationsin the Monaco plankton but found only once in the Carnegie planktonand not at all in the others. Although it was confined to these threestations in the Albatross plankton, over 75 specimens were obtained ina surface tow at the first of the three, located off Honshu, Japan.CENTROPAGES VIOLACEUS (Clans)Ichthyophorba violacea Claus, Die freilebenden Copepoden, p. 199, pi. 35, figs.13, 14, 1863.Stations 6; 9; 12; 23; 34; 36; 39; 41; 43; 53; 55; 57; 59; 63; 65; 75;81 ; 3901 ; 4588 ; 4644 ; 4659 ; 4683^685 ; 4688 ; 4700 ; 4707 ; 4721 ; 4731
;
4738; 4741; 5120; 5226; 5227; 5246; 5340; 5424; 5437; Fiji Islands.The list shows that this was one of the most widely distributed speciesof the genus in the Albatross plankton. It was second in abundancein the Monaco plankton, third in the Carnegie plankton, but did notappear at all in the Wilkes, Challenger, and Siboga planktons. Bradyrecorded in the Challenger plankton specimens that he referred tothis species, but later they were given a new name, Centropages bradyi,by Wheeler (1901, p. 174)
.
Genus CEPHALOPHANES Sars, 1907CEPHALOPHANES REFULGENS SarsCej)halophanes refulgens Sars, Bull. Inst. Oc?anogr. Monaco, No. 101, p. 15, 1907;Res. camp. sci. Albert de Monaco, No. 69, p. 154, pi. 43, 1925.Stations 2; 62; 4681; 4683; 4719; 4730; 4738; 4952. Originallyestablished by Sars upon female specimens from 19 Monaco stationsin the temperate Atlantic, it does not appear in any of the otherplanktons. The male was described and figured by Steuer (1926,p. 182) from the southern Atlantic; the species was also recordedby Farran (1908, p. 49) from the Irish Atlantic Slope. Except forthe first and last stations, these Albatross specimens were identifiedby Sars and are a first record from the Pacific Ocean.Genus CKIRIDIELLA Sars, 1907CHIRIDIELLA MACRODACTYLA SarsChiridiella maerodactyla Sars, Bull. Inst. Oeeanogr. Monaco, No. 101, p. 8,1907 ; Res. camp. sci. Albert de Monaco, No. 69, p. 50, pi. 16, figs. 1-11, 1925.
COPEPODS GATHERED BY ALBATROSS?WILSON 189Station 5320. Another species established by Sars in the Monacoplankton upon female specimens from the temperate Atlantic. It wasrecorded in the Siboga plankton from the Malay Archipelago but isnot found in the other lists and the male still remains unknown.Genus CHIRIDIUS Giesbrecht, 1892CHIRIDIUS ARMATUS (Boeck)Plate 22, Figure 310Euchaeta armata Boeck, Forh. Vid. Selsk., Christiania, vol. 14, p. 39, 1872.Stations 4646 ; 5185 ; 5208 ; 5231 ; 5285 ; 5651. Identified from thesesix Albatross stations and from 29 Monaco stations but not found inthe other lists. All the Monaco stations were located in the northernAtlantic, but the first of these Albatross stations is located off theGalapagos Islands and the second in the Philippines, making the firstrecord from the Pacific. In this species both fifth legs of the malehave rudimentary endopods as seen in the figure.CHIRIDIUS GRACILIS FarranChiridius gracilis Farran, Fisheries Ireland. Sci. Invest., 1906, pt. 2, p. 30, pi. 2,figs. 1-3, 1908.Station 5382. Originally described by Farran from the northernxVtlantic and afterward reported doubtfully off New Zealand (Farran,1929, p. 229) ; also doubtfully reported by Scott in the Siboga plank-ton from the Malay Archipelago. Not found in the other planktonlists and present here in the Albatross plankton only in the singlePhilippine haul listed above. The male is still unknown.CHIRIDIUS OBTUSIFRONS (Sars)Chiridius armatus Sars, Norwegian North Polar Exped., vol. 5, Crustacea, p.64, pi. 17, 1900.Chiridius obtitsifrons Sars, Crustacea of Norway, vol. 4, p. 29, pi. 17, 1902.Stations 5185 ; 5227. Sars' type specimens came from the oceanand were at first referred to the species armatus but afterward de-scribed as new in the Crustacea of Norway. The Siboga plankton isthe only list in which this species is found, and even there the nameis followed by a question mark. However, these two Albatross lo-calities are close to the one mentioned in the Siboga plankton andindicate that it is really a Pacific form.Genus CIIIRUNDINA Giesbrecht, 1895CHIRUNDINA STREETSI GiesbrechtChirundina streetsi Giesbrecht, Bull. Mus. Comp. Zool., vol. 25, No. 12, p. 249,pi. 1, figs. 5-10, 1895.
190 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 27; 3799; 4574; 4671; 4681; 4685; 4687; 4740; 5185; 5227;5231. This species was reported as rather abundant at 56 Monacostations and at 16 Siboga stations from both the Atlantic and PacificOceans. It is also found in the warmer tropical waters as well asthe cooler temperate depths, in surface tows and in vertical hauls.At these Albatross stations, however, the number of specimens wasvery limited, sometimes only a single one.Genus CLAUSOCALANUS Giesbrecht, 1888CLAUSOCALANUS ARCUICORNIS (Dana)Calanus arcuicornis Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 12, 1849
;
United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1056, 1853 ; pi. 72, fig. 7 a, b, 1855.Stations 2; 4; 5; 8; 9; 19; 20; 22; 23; 25; 26; 29; 36; 39; 45; 4953; 57; 60; 62; 63; 65; 66; 75; 77; 79; 81; 82; 236; 3799; 3901; 45744664; 4673; 4707; 4889; 5129; 5208; 5231; 5262; 5263; 5320; 53405396 ; 5424 ; 5437 ; 5651 ; Fiji Islands. At these Albatross stations thenumber of specimens was comparatively limited, in the Siboga plank-ton they were moderately abundant, in the Monaco plankton veryabundant, and in the Carnegie plankton taken at nearly every station.Dana's types came from the southern Pacific southwest of theKermadec Islands. CLAUSOCALANUS FURCATUS (Brady)Drepanopus furcatus Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 77, pi. 4, figs. 1, 2 ; pi. 24, figs. 12-15, 1883.Stations 9; 12; 19; 23; 26; 30; 32; 35; 41; 47; 52; 64; 65; 70; 71;75; 3799; 4574; 5233; 5340; 5399. Present in all the plankton listsexcept the Wilkes, but not so abundant as the preceding species.Genus CLYTEMNESTRA Dana, 1847CLYTEMNESTRA ROSTRATA (Brady)Ooniopsyllus rostratus Brady, Voyage of H. M. S. Challenger, Zool., vol 8, pt. 23,Copepoda, p. 107, pi. 42, figs. 9-16, 1883.Stations 2; 36; 82. Two females were found at station 2 in thetemperate Atlantic; the other two stations are in the north Pacific.Otherwise, the species was found at 5 stations in the Siboga plankton,all in the west Pacific, and irregularly scattered over the entire Pacificand once southeast of Iceland in the Carnegie plankton.CLYTEMNESTRA SCUTELLATA DanaClytemnestra scutellata Dana, Proc. Amer. Acad. Arts and Sci., vol. 1, p. 153, 1847United States Exploring Expedition, 1S38-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1194, 1853 ; pi. 83, fig. 12 a-f, 1855.
COPEPODS GATHERED BY ALBATROSS?WILSON 191Stations 71; 3799; 3932; 4037; 4685; 5262; 5301; 5399. A fewspecimens were found at each of these Albatross stations, but from the62 Carnegie stations at which this species was taken over a hundredspecimens were obtained.Genus CONAEA Giesbrecht, 1891CONAEA GRACILIS (Dana)Plate 5, Figures 36-46Antaria gracilis Dana, United States Exploring Expedition, 1838-1842 (Wilkes),vol. 14, pt. 2, Crustacea, p. 1229, 1853 ; pi. 86, fig. 11 a-d, 1855.Stations 4723 ; 4734 ; 5320 ; Fiji Islands. First established by Danain the Wilkes plankton as Antaria gracilis, then listed by Giesbrechtin his Naples monograph as Conaea rapax; and later by T. Scott ( 1894,p. 116) from the Gulf of Guinea as Oncaea gracilis. It also occurredin the Monaco, Siboga, and Carnegie lists. The Albatross specimensidentified by Sars from the first two stations differ in some of thedetails of the appendages, and as he had made a complete set of pencildrawings they are here reproduced for comparison with those ofGiesbrecht and T. Scott.Genus COPILIA Dana, 1849COPILIA DENTICULATA ClansCopilia denticulata Claus, Die freilebenden Copepoden, p. 161, pi. 25, figs. 14-20,1863.Stations 14; 54; 60; 66; 76; 80; 4611; 5246; 5301; 5320; GilbertIslands. This species was found at 66 Carnegie stations but did notappear in the other planktons.COPILIA MIRABILIS DanaCopilia mirabilis Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 40, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1232, 1853 ; pi. 86, fig. 14 a-f , 1855.Stations 15; 3829; 3878; 4009; 4588; 4700; 4716; 4926; 4952; 5102;5155; 5185; 5186; 5190; 5223; 5230; 5240; 5263; 5319; 5320; 5422;5436 ; 5437 ; 5553 ; 5611 ; 5633 ; 5640 ; Niuafu Island. This was the typespecies of Dana's genus. It is present in all the plankton lists exceptthe Monaco and was especially widely distributed in the Sibogaplankton, where it was reported from 42 stations.COPILIA QUADRATA DanaCopilia quadrata Dana, Proc. Arner. Acad. Arts and Sci., vol. 2, p. 40, 1849;United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1233, 1853 ; pi. 86, fig. 15 a-d, 1855.
192 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 15; 3799; 3829; 3901; 3912; 4009; 4010; 4648; 4659; 4663;4716; 4926; 4952; 5102; 5120; 5129; 5134; 5175; 5185; 5190; 5223;5225-5227; 5229; 5234; 5240; 5246; 5262; 5263; 5320; 5340; 5415;5422 ; 5488 ; 5489 ; 5530 ; 5553 ; 5611 ; 5627; Fiji Islands. This is a littlemore widely distributed than the preceding species and was reportedfrom 26 Siboga and 46 Carnegie stations.COPILIA VITREA (Haeckel)Eyalophyllwm vitreum Haeckel, Zeitscbr. Med. Naturwiss., vol. 1, p. 63, pi. 1,figs. 7-12, 1864.Stations 5224 ; 5263 ; Gilbert Islands. This is the largest species ofthe genus and is more tropical than the others in distribution. Itwas found at a single Siboga station and at 16 Carnegie stations.Genus CORNUCALANUS Wolfenden, 1905CORNUCALANUS CHELIFER (Thompson)Scolecithrix chelif-cr I. C. Thompson, Ann. Mag. Nat. Hist., ser. 7, vol. 12, p. 21,pi. 5, figs. 1-9, 1903.Station 5185. Established by Thompson in 1903 upon specimensobtained during the cruise of the Oceana and placed in the genusScolecithrix. Wolfenden (1905b, p. 21) realized that it did not belongthere and created the present genus for its reception, and this hasbeen adopted by subsequent writers. Sars gave complete descriptionand figures in the Monaco plankton, but it does not appear in the otherlists. Sewell (1929, p. 177) reported and figured a juvenile male fromthe Indian Ocean. Two females were obtained at this Philippinestation between Panay and Negros Islands.Genus CORYCAEUS Dana, 1845CORYCAEUS AGILIS DanaCorycaeus agilis Dana, Proc. Anier. Acad. Arts and Sci., vol. 2, p. 37, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,pp. 1217, 121S, 1853 ; pi. 85, fig. 1 a, b, 1855.Stations 7 ; 16 ; 27 ; 34 ; 35 ; 39 ; 64-66 ; 68 ; 70 ; 71 ; 75 ; 80 ; 82 ; 28063799; 3878; 3901; 4009; 4010; 4037; 4926; 5102; 5120; 5133; 51345155; 5180; 5186; 5190; 5196; 5223; 5225; 5227; 5234; 5240; 52625263; 5319; 5320; 5338; 5348; 5349; 5382; 5386-5388; 5397; 54225424 ; 5430 ; 5437 ; 5530 ; 5538 ; 5553 ; Fiji Islands ; Niuafu Island. Inaddition to Dana's original description of Pacific specimens, this spe-cies was found at 39 stations in the Carnegie plankton but it does notappear in the other lists.CORYCAEUS CATUS F. DahlCorycaeus catus F. Dahl, Verb, deutscb. zool. Ges. Miincben, vol. 4, p. 72, 1894b.
COPEPODS GATHERED BY ALBATROSS?WILSON 193Stations 34-36 ; 39 ; 41 ; 44 ; 54 ; 60 ; 71 ; 73 ; 80 ; 2806 ; 3829 ; 4756
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5133; 5186; 5340; 5422; 5424; 5425; Fiji Islands. This species wasalso in the Carnegie plankton but did not appear in the other lists.CORYCAEUS CLAUSI P. DahlCorycacus clausi P. Dahl, Verb, deutsch. zool. Ges. Miincben, vol. 4, p. 73, 1894b.Stations 14; 24; 2818; 3782; 4588; Fiji Islands. This is a thirdspecies found in the Carnegie plankton but not in the other lists.CORYCAEUS CRASSIUSCULUS DanaCorycaeus crasslusculus Dana, Proc. Aruer. Acad. Arts and Sci., vol. 2, p. 36, 1849
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United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1214, 1853 ; pi. 85, fig. 7 a, b, 1855.Stations 65; 70; 75; 3799; 3878, 3932; 4009; 5357. Established byDana upon male specimens from the Sulu Sea in the vicinity of thesecond of these stations.Dana cited as distinguishing characters the prolonged points on theposterior corners of the third and fourth segments and the contiguityof the conspicilla. He also said that the males had deep red pigmentabout the mouth and along the ventral surface and that the pigmentof the eyes was red. CORYCAEUS DUBIUS FarranCorycaeus dubius Farran, Proc. Zool. Soc. London, 1911, p. 292, pi. 12, fig. 7, pi.14, figs. 5-9.Stations 14; 39; 75; 82; 4037; 5120; 5155. Established by Farranin 1911 upon a single female taken near Christmas Island, and in 1912both sexes were fully described and figured by M. Dahl (1912, p. 71).It appears only in the Carnegie plankton, where it was found in boththe Atlantic and Pacific.CORYCAEUS FLACCUS GiesbrechtCorycaeus flaccus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1,p. 480, 1891; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 659,674, pi. 51, tigs. 10, 11, 1892.Stations 2; 13; 24; 41^13; 55; 59; 60; 63-66; 75; 3799; 3878; 4009;4037 ; 4644 ; 4707 ; 5246 ; 5437 ; Fiji Islands. Present at 27 Monaco, 39Carnegie, and 3 Siboga stations but not appearing among Dana's orBrady's species. CORYCAEUS FURCIFER ClausCorycaeus furcifer Claus, Die freilebenden Copepoden, p. 157, pi. 24, figs. 7-12,1863.
194 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 30; 59; 60; 3799; 5246. Taken at 20 Siboga, 4 Monaco,and 13 Carnegie stations but not appearing in the Wilkes or Challengerlists. CORYCAEUS GIESBRECHTI F. DahlCorycaeus gicsbrechti F. Dahl, Verh. deutsch. zool. Ges. Miinchen, vol. 4, p. 72,1894b.Station 24. Established by F. Dahl upon specimens from the tem-perate Atlantic and afterward reported in the Carnegie plankton, byM. Dahl (1912, p. 88) from the Pacific, and by Sewell (1924, p. 803)from the Indian Ocean. It is thus widely distributed but nowhereabundant. CORYCAEUS LATUS DanaCorycaeus latus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 38, 1849 ; UnitedStates Exploring Expedition 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1221, 1853 ; pi. 86, figs. 3 a-e, 1855.Stations 3822 ; 3829 ; 3878 ; 4009 ; 4010 ; 4037 ; 4588 ; 5120 ; 5129 ; 5175
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5176; 5180; 5186; 5190; 5208; 5209; 5223; 5225; 5229; 5234; 5386;5388; 5399; 5434; 5437; 5530; 5601; 5651; Sabtan Island, PhilippineIslands. Established by Dana upon specimens from the tropical At-lantic and reported by Rose in the Monaco plankton, the species doesnot appear in the other lists. The present is the first record from thePacific and indicates that the species is more abundant in that ocean.Dana said (1853, p. 1222) that the pigment of the large eyes extendedbackward on the underside of the cephalothorax, but this could not beverified in any of these preserved specimens.CORYCAEUS LAUTUS DanaCorycaeus lautus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 37, 1849;United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1219, 1853 ; pi. 85, fig. 12 a-e, 1855.Stations 2; 14; 59; 60; 63; 66; 75; 3782; 3799; 3829; 4926; 5133;5155; 5190; 5262; 5319; 5320; 5349; 5412; 5437; 5530; 5601; NiuafuIsland. Established upon specimens from the tropical Pacific andappearing in the Monaco and Carnegie planktons but not in the Sibogaor Challenger lists. CORYCAEUS L1MBATUS BradyCorycaeus limbatus Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 114, pi. 49, figs. 18-22, 1883.Stations 65 ; 70 ; 71 ; 3799 ; 3829 ; 3901 ; 3980 ; 4009 ; 4037 ; 4637 ; 52085225; 5231; 5240; 5246; 5262; 5263; 5301; 5320; 5424; 5434; SabtanIsland, Philippine Islands; Fiji Islands. Reported from 13 Monacoand 38 Carnegie stations but not found in the Siboga or Challengerplankton.
COPEPODS GATHERED BY ALBATROSS?WILSON 195CORYCAEUS LONGISTYLIS DanaCorycaeus longistylis Dana, Proc. Amei\ Acad. Arts and Sci., vol. 2, p. 36, 1849
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United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1212, 1853 ; pi. 85, fig. 5 a-d, 1855.Stations 24; 26; 30; 31; 39; 41-44; 52; 55; 57; 59; 60; 62; 6365-67; 3799; 3800; 3829; 3878; 3901; 4009; 4010; 4683; 4714; 47314926; 5120; 5129; 5133; 5134; 5180; 5185; 5190; 5223; 5227; 52295240; 5246; 5262; 5301; 5308; 5319; 5320; 5334; 5338; 5340; 53485415; 5424; 5434; 5437; 5489; 5530; 5646; 5651; Sabtan Island,Philippine Islands; Fiji Islands; Niuafu Island. Reported from 13Siboga and 57 Carnegie stations but not present in the Monaco or theChallenger plankton.CORYCAEUS LUBBOCKII GiesbrechtCorycaeus lubboclcii Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1,p. 481, 1891; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 660,674, pi. 51, figs. 51, 57, 58, 1892.Stations 10; 24; 46; 48; 55; 57; 59; 60; 62; 63; 65; 4009; 5437.Found at 5 Siboga and 2 Carnegie stations but not present in the otherlists. CORYCAEUS OVALIS ClansCorycaeus ovalis Claus, Die freilebenden Copepoden, p. 158, 1863.Stations 24; 30; 63; 65; 68; 70; 71; 3789; 5129; 5263; 5320; 5334;5338; 5382; 5386 ; 5415 ; 5424 ; 5437; 5651; 5653; Iloilo Straits, Philip-pine Islands; Fiji Islands. Present at 20 Monaco and 15 Carnegiestations but not found in the other lists. M. Dahl ( 1912, p. 96) claimedit as a typical Mediterranean form, yet the above record shows it tobe also well distributed in the Pacific.CORYCAEUS PACIFICUS F. DahlCorycaeus pacificus F. Dahl, Verh. deutsch. zool. Ges. Munchen, vol. 4, p. 73,1894b.Stations 41; 65; 3901; 3981; 5120; 5134; 5340; 5348; 5399; 5651;Niuafu Island. Established by F. Dahl and later more completely de-scribed and figured by M. Dahl (1912, p. 103) ; it does not appear in anyof the plankton lists except the Carnegie, but it has been reported fromthe Indian as well as the Pacific Ocean.CORYCAEUS PUMILUS M. DahlCorycaeus pumilus M. Dahl, Ergebnisse der Plankton-Expedition der Hum-boldt-Stiftung, vol. 2, Die Copepoden, p. 91, pi. 12, figs. 21-28, 1912.Stations 15; 34; 35; 41; 66; 71; 3829; 3901; 4037; 5120; 5134;5175; 5176; 5186; 5225; 5226; 5262; 5263; 5320; 5340; 5388; 5424;843804?50 5
196 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM5507; Iloilo Straits, Philippine Islands. Described by M. Dahl asa coastal form from the Bismarck Archipelago and New Guinea.Widely distributed over the Pacific Ocean in the Carnegie planktonbut not appearing in the other lists.CORYCAEUS ROBUSTUS GiesbrechtCorycaeus robust us Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem.1, p. 480, 1801; Fauna und Flora des Golfes von Neapel, monogr. 19, pp.660, 673, pi. 51, figs. 38, 42, 1892.Stations 39; 64; 66; 3829; 3878; 3901. Included by Brady in theChallenger plankton under the name C. venustus Dana, on the basisof specimens from the Philippine Islands. The species was takenby the Siboga at 19 stations in the tropical Pacific and by the Carnegieat widely scattered stations.CORYCAEUS SPECIOSUS DanaCorycaeus speciosus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 38, 1849
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United States Exploring Expedition, 1S38-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1220, 1853 ; pi. 86, fig. 1 a-d, 1855.Stations 15; 24; 27; 33; 41; 43; 44; 48; 49; 52; 53; 57; 64-66; 70; 75-77; 80; 2195; 2806; 3782; 3789; 3799; 3800; 3829; 3878; 3932; 40094010 ; 4190 ; 4731 ; 4756 ; 4926 ; 5102 ; 5120 ; 5129 ; 5133 ; 5155 ; 5175 ; 51805186; 5190; 5196; 5209; 5223; 5225; 5229-5231; 5240; 5246; 52475262; 5263; 5319; 5320; 5334; 5338; 5348; 5382; 5386; 5387; 54155422 ; 5434; 5484; 5507 ; 5530; 5578 ; Iloilo Straits, Philippine IslandsFiji Islands ; Gilbert Islands. Found also at 1 Challenger, 13 Monaco,37 Siboga, and 62 Carnegie stations and therefore is well distributedin all oceans. CORYCAEUS SUBTILIS M. DahlCorycaeus subtilis M. Dahl, Ergebnisse der Plankton- Expedition der Huniboldt-Stiftung, vol. 2, Die Copepoden, p. 80, pi. 8, figs. 9-16, 1912.Stations 3799; 3829. Originally established upon specimens fromZanzibar and the Bismarck Archipelago, it does not appear in anyof the plankton lists. CORYCAEUS TYPICUS (Kr^yer)Agetus typicus Kb0yeb, Naturh. Tidssk., Kjpbenhavn, ser. 2, vol. 2, p. 603, pi.6 tigs. 27-29, 1849.Stations 61-63; 66; 70; 71; 75; 76; 3799; 3901; 5223; 5246; 5320;Sabtan Island, Philippine Islands ; Fiji Islands ; Niuafu Island. Thisspecies was recorded from 19 Monaco and 77 Carnegie stations but isnot included in the other lists. Kr0yer made this species the typeof a new genus, Agetus, but it evidently belongs to Dana's genus
COPEPODS GATHERED BY ALBATROSS?WILSON 197Corycaeus; therefore Kroyer's name becomes a synonym. Fortunatelyit fits into Dana's genus so well that its specific name does not seem atall out of place. CORYCAEUS VITEEUS DanaCorycaeus vitreus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 37, 1849;United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1216, 1853 ; pi. 85, fig. 9 a-d, 1855.Station 4009. Established by Dana upon a single male capturedeast of the Taumotu Islands in the tropical Pacific. It does not ap-pear in any of the plankton lists but was described and figured in detailby M. Dahl (1912, p. 25). The female still remains unknown.Genus CRYPTOPONTIUS Giesbrecht, 1899CRYPTOPONTIUS BREVIFTJRCATUS GiesbrechtCryptopontius brevifurcatus Giesbrecht, Fauna und Flora des GoLfes von Neapel,monogr. 25, p. 109, pi. 1, fig. 7 ; pi. 8, figs. 1-12, 1899.Station 2396. Identified from this single station in the Gulf ofMexico ; fully described by Sars ( 1915, p. 120) . It is not found in anyof the plankton lists, since it is a semiparasitic form and can becaptured only when it leaves its host and swims about freely in thetow, a circumstance that apparently happens very rarely.Genus CYMBASOMA I. C. Thompson, 1888CYMBASOMA LONGISPINOSUM (Bourne)Monstrilla longispinosa Boubne, Quart. Journ. Micr. Sci., ser. 2, vol. 30, p. 575,pi. 37, figs. 1-4, 10, 1890.Caldera Bay anchorage, west coast of Mindanao, Philippine Is-lands. The net was set in the tidal current at the gangway of thesteamer for 20 minutes, and in the large resultant catch were includedfive species of Monstrilloida. The present species was establishedby Bourne upon specimens obtained in the English Channel. Bothsexes were afterward fully described and figured by Sars (1921, p. 24).CYMBASOMA RIGIDUM I. C ThompsonCymbasoma rigidum Thompson, Journ. Linn. Soc. London, Zool., vol. 20 (1890),p. 154, pi. 13, 1888.Stations 5133, 5320; Caldera Bay anchorage, west coast of Minda-nao, Philippine Islands. This was the species designated by Thomp-son to serve as the type of his new genus Cymbasoma. The genericname was afterward withdrawn in favor of Dana's genus Monstrilla,but when it became necessary to divide Monstrilla into two closelyallied genera Thompson's name was restored. As in the case of thepreceding species both sexes were fully described and figured by Sars(1921, p. 21).
198 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGenus DACTYLOPUSIA Norman, 1903DACTYLOPUSIA VULGARIS SarsDactylopusia vulgaris Sars, Crustacea of Norway, vol. 5, p. 128, pi. 79, fig. 1,1905.Two females of this species were found in a small vial containinga printed Albatross label, which, unfortunately, carried no other data.This is a common and widely distributed harpacticoid, though not inany of the plankton lists, and might well be included in the planktonpicked up at any of the anchorages.Genus DISSETA Giesbrecht, 1889DISSETA MAXIMA EsterlyDisseta maxima Esterly, Univ. California Publ. Zool., vol. 6, No. 14, p. 330,pi. 29, figs. 54, 58; pi. 30, fig. 79, 1911.Stations 5320; 5437. Established by Esterly upon a few femalespecimens from off the coast of southern California and not foundin any of the plankton lists. The male still remains unknown, andthe species is very limited in its distribution.DISSETA PALUMBOI GiesbrechtPlate 21, Figure 296Disseta palumbii Giesbrecht, Atti Accatl. Lincei, Rome, ser. 4, vol. 5, sem. 1,p. 812, 1889; Fauna and Flora des Golfes von Neapel, monogr. 19, p. 369,pi. 29, figs. 2, 8, 14, 19, 23-25, 27 ; pi. 38, fig. 44, 1892.Stations 2 ; 13 ; 18 ; 4652; 4661 ; 4663 ; 4665 ; 4667 ; 4669 ; 4673 ; 4676
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4679; 4687; 4705; 4707; 4711; 4717; 4719; 4722; 4730; 4793; 5129;5185; 5225; 5231; 5320. Established by Giesbrecht upon a singlefemale from the tropical Pacific, the male was afterward describedand figured by A. Scott in the Siboga plankton. Twenty-five speci-mens were identified by Sars from the first 19 of these Albatross sta-tions ; earlier he reported the species from 54 stations in the Monacoplankton. Neither Scott nor Sars noted the tripartite spine on thesecond exopod segment of the fifth leg in the female. This was figuredby Giesbrecht and noted by Sewell (1932, p. 309) . As found in theseAlbatross specimens, it is dark in color and highly chitinized andstands up at right angles to the surface of the leg, making a goodidentifying character. DISSETA SCOPULARIS (Brady)Plate 6, Figures 47-50Leuckartia scopularis Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt.23, Copepoda, p. 51, pi. 14, figs. 1-5, 18S3.Stations 4681; 4705; 4722; 4730; 4740. Established by Brady inthe Challenger plankton upon "two or three imperfect specimens taken
COPEPODS GATHERED BY ALBATROSS?WILSON 199between Japan and Honolulu" and placed in the genus "Leuckartia(?)." Another imperfect male was taken in the Siboga planktonsouth of Ceram in the Malay Archipelago and was described andfigured as Disseia scopularis by Scott. These are all the specimenshitherto obtained. Sars identified 14 copepods from the six Alba-tross stations listed above as a new species of Disseta. He did not,however, examine the appendages in detail, and as soon as the fifthlegs of the male were carefully observed it became apparent that thespecimens corresponded to those described by Brady and Scott. Sincethe earlier specimens were mutilated and confined to the male sex, afull description of both sexes is given.Female.?Metasome an elongated ellipse nearly three times as longas wide, with a small rounded knob at the center of the forehead abovethe rostrum. The latter is short, lamellar, and tipped with twoslender filaments and is entirely concealed in side view by the basesof the first antennae. The posterior corners of the thorax are bluntlyrounded and project backward a little on either side of the genitalsegment.Urosome 4-segmented and slender, one-third as wide as the meta-some and half as long if the caudal rami are included. The genitalsegment is one-half longer than wide with straight sides and the analsegment is fused with the caudal rami. The left caudal ramus islonger than the right and each is armed with a long naked seta andthree plumose setae. The naked seta on the left ramus is longer thanthe entire body, a considerable median portion having been cut out inthe figures.The first antennae are slender and reach four segments beyond thetips of the caudal rami. The endopod of the second antenna isshorter than the exopod, and both rami are armed with unusually longand slender setae. On the chewing blade of the mandible the threeouter teeth are very much larger than the series of 10 or 12 inner ones.The second maxilla has six inner lobes, each tipped with three to fivesetae. The maxilliped and the first four pairs of legs are similar tothose of palwnboi, but the fifth legs are quite different. There is amuch greater inequality in size between the two rami, the exopodbeing four times as long as the endopod. The end segment on theexopod is more than twice as long as wide, with two outer spines andone inner seta. The basal segment of the endopod has one innerseta, the middle segment two inner setae, and the end segment threeinner, two terminal and two outer setae. Total length 10 to 11 mm.Male.?A little smaller than the female with the same general pro-portions except that the urosome is 5-segmented. The anal segmentis fused with the caudal rami, and the latter show the same asymmetry
200 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
as in the female. The first antenna on the left side is geniculate andlonger than the right one, with the terminal portion 4-segmented.The other appendages are like those of the female, except the fifthlegs shown in figure 50. The basipods of these legs are considerablyenlarged and the second segment in each leg has on its posterior sur-face a laminate process tipped with a dense fringe of fine hairs whichcompletely covers the basal endopod segment. These endopods are3-segmented, the left one a trifle the longer and its end segment withsix setae while the end segment of the right endopod has five setae.The middle segments each have a single seta, and these, as well as thesetae on the end segments, extend straight across and overlap thoseon the opposite leg. The proximal segment of each exopod has asmall spine at its outer distal corner, and the second segment has astout curved spine on its inner margin at the base. On the right legthe inner distal corner of this second segment is protruded into a bluntprocess covered with fine hairs. The end segment is tipped with acouple of spines and carries on its inner margin a semicircular trans-parent pad that covers the bases of the terminal spines and extendsback to the hairy process of the second segment. The end segmentof the left exopod has two spines on its inner margin and is tippedwith a long stout spine bent near its base and acuminate at its tip.Total length 9 to 9.50 mm.Allotype female.?U.S.N.M. No. 70744; station 4722, latitude 9?31'S., longitude 106?30' W., Galapagos to Paumotu Islands.Remarks.?The exceptional inequality in the size of the two ramiof the fifth legs in the female and the structural details of the fifthlegs of the male are the distinguishing characters of this species.On comparing figure 50 of plate 4 with figure 9, plate 42, of the Sibogareport it will be evident that the fifth legs of Scott's single male werescarcely injured at all. On the contrary, Brady's specimen was badlymutilated and owing to the separation of the two legs right and lefthave been transposed both in the description and in the labels of thefigures. Genus DREPANOPUS Brady, 1883DREPANOPUS FORCIPATUS GiesbrechtDrepanopus forcipatus Giesbrecht, Atti. Accad. Lincei, Rome, ser. 4, vol. 4, sem.2, p. 335, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, p. 201,pi. 10, figs. 23-25, 27-30 ; pi. 36, figs. 36-38, 1892.[Station 2770. Almost coincidental with the publication of Gies-brecht's description of this rare genus and species from both coastsof southern South America (lat. 45? S. and 49? S.) the Albatrosssecured some 500 female specimens in latitude 48? S., off the Argen-tine coast. The Albatross specimens, which may have been deter-
COPEPODS GATHERED BY ALBATROSS?WILSON 201mined by Sars, failed of record in the Wilson manuscript. Theiridentification has been verified by Mrs. Mildred S. Wilson {vide foot-note 1, p. vii). The taking of some 150 specimens, practically allfemales, in a dredge haul made in 20-25 meters in West CumberlandBay, South Georgia, is reported by Pesta (1930, p. 101).?W. L. S.]Genus DYSGAMUS Steenstrup and Liitken, 1861DYSGAMUS ARIOMMUS WilsonDysgamus ariommus Wilson, Proc. U. S. Nat. Mus., vol. 31, p. 713, pi. 20, figs.62-70, 1907.Stations 3829; 5228. Two males were taken in the tow at thissecond station south of Romblon Island in the Philippines and a thirdat the first station south of the Hawaiian Islands, all three swimmingfreely. The species does not appear in any of the lists, and these arethe first specimens to be obtained since the original discovery. Indiscussing the commensal and parasitic copepods of the Siboga plank-ton, Dr. Leigh-Sharpe (1934, p. 28) described seven specimens thathe referred to Brady's species murrayi, which Brady had placed inthe genus Nogagus. Brady's description in the Challenger reportwas very meager, and in his single figure the first two pairs of legswere entirely lacking. Dr. Leigh-Sharpe's excellent figures suppliedthese and many other missing details, but he made the present speciesariommus a synonym of murrayi, which his own figures proved to beimpossible. In murrayi the endopods of the first three pairs of legsare 1-segmented, the genital segment has a pair of large leg rudiments,and in his own words, "there are two furcae one behind the other."In ariommus the endopods of all four pairs of legs are 2-segmented,there are no leg rudiments on the genital segment, and the furca iscertainly single. It may be added that none of the other appendagesshow correspondence in detail and such a total lack of accord in spe-cific characters effectively prohibits any idea of synonymy suggestedby general appearance.DYSGAMUS PACIFICUS, new speciesPlate 6, Figukes 51-60Stations 3683 ; 3829 ; 4010 ; H. 3789. About 20 males were takenin a surface tow at station H. 3789 north of the Marquesas Islandson September 9, 1899. Single males were obtained at each ofthe other stations except station 3683, at which 3 were taken.Male.?Carapace 55 percent of the entire length and five-sixths aswide as long, with the dorsal pattern of grooves shown in figure 51.Frontal plates prominent and separated by a narrow median incision
;
lateral lobes with their bluntly rounded ends turned inward, just
202 BULLETIN 100, UNITED STATES NATIONAL MUSEUMequaling in length the median lobe. Free fourth segment withstrongly convex sides and as wide as the posterior end of the mediancarapace lobe. Genital segment barrel-shaped and nearly as wide asthe fourth segment, with no trace of leg rudiments. Abdomen 2-segmented, the segments the same width but the anal segment longerthan the basal. Caudal rami suborbicular, inserted in the reentrantcorners of the anal segment and scarcely projecting behind it.First antenna rather stout, with short setae ; basipod of the secondantenna with a stout posterior spine acute at its tip, the terminalclaw bent abruptly near its center. First maxilla simple, its innermargin an S-curve; second segment of second maxilla longer than thebasal segment, with a small spine distal to the center of its innermargin, the inner terminal seta twice as long as the outer. Maxillipedwith the basal segment much swollen and armed on its inner surfacewith a stout spine and a corrugated ridge against which the powerfuland strongly curved terminal claw shuts. Furca 6 H -shaped, thelateral arms enlarged at their bases, the central crossbar quite slender.The four pairs of legs are biramose, each ramus 2-segmented withspines and setate as shown in figures 57 to 60. Attention is called tothe abnormal seta on the inner margin of the basal segment of thesecond leg. Total length 3.82 mm. Carapace 2 mm. long, 1.85 mm.wide.Type.?U.S.N.M. No. 70752 ; station H3789, Cape Martin, NukuhivaIsland, N. 30? E., distance 6y2 miles.Remarks.?The distinctive characters of this species appear inevery one of the appendages but especially in the arrangement of thespines and setae on the four pairs of legs.Genus ECTINOSOMA Boeck, 1864ECTINOSOMA CURTICORNIS BoeckEctinosoma curticornis Boeck, Forh. Vid. Selsk., Christiania, vol. 14, p. 45, 1872.Station 4663. Two females of this small harpactid were found ina surface tow at this station off the Peruvian coast. It is not in-cluded in any of the other plankton lists.Genus EUAETIDEUS Sars, 1925EUAETIDEUS BRADYI (A. Scott)Plate 7, Figures 70, 71Aetideus iradyi A. Scott, Copepoda of the Siioga-Exvedition, monogr. 29a, pt. 1,p. 38, pi. 5, figs. 1-12, 1909.
nO^\nT J,UrCa 'f, ^Sed t0 dcsifrnat " ,h!s appendage of parasitic eopepods and hencecannot bo rightly applied to the caudal rami of pelagic forma.
COPEPODS GATHERED BY ALBATROSS?WILSON 203Stations 4758 ; 5120 ; 5185 ; 5190 ; 5320. Established by A. Scott asAetideus bradyi in the Siboga plankton, but in the Monaco planktontransferred by Sars to his new genus Euaetideus together with otherspecimens "Obtenue pendant l'Expedition de VAlbatross dans 1'OceanPacifique, mais non encore decrite." At first Sars regarded thesespecimens as a new species, the third for his new genus, and madedrawings of them labeled with a new specific name. But afterwardhe evidently changed his decision, drew a line through the new name,and wrote above it the name of the present species. This explainsthe above quotation from the Monaco plankton and also the factthat no third species of the new genus has ever appeared. All Scott'sspecimens were females and so were those that Sars made the typespecies of his new genus. The Albatross collections however includemales as well as females, and the former sex is here described for thefirst time, from Station 4758.Male.?Head fused with the first segment into an elongate cephal-othorax like that of the female. A similar hard and horny rostrumis present, but there is no knoblike frontal projection or any crest.The last thoracic segment is produced into chitinized spines, whichreach the posterior margin of the first abdominal segment and arecurved slightly outward. The urosome is 4-segmented; the genitalsegment is one-half wider than long ; the middle abdominal segment islonger than either of the other two. The caudal rami are longerthan the anal segment and slightly divergent, three times as long aswide, each with four plumose and one appendicular setae.The antennae, mouth parts, and first four pairs of legs are likethose of the female. Only one fifth leg, the left, is present, as in themales of the genus Aetideus, and this leg is uniramose and 5-seg-mented. The third segment is the longest and the terminal segmentthe shortest, and the only armature is four or five minute filose setaeon the end segment. Total length 1.50 mm. Metasome 1.40 mm.long, 0.56 mm. wide.Allotype male.?U.S.NM. No- 70757; station 4758: latitude 52?02'N., longitude 132?53' W., off Queen Charlotte Islands.Remarks.?This is the first male to be reported for Sars' new genus,and since the rostrum is fully as massive as in the female and thespines at the posterior corners of the metasome are half as long asthe urosome it fully supplements the distinctive characters of thegenus and helps to validate its separation from the genus Aetideus.The species was reported in the Carnegie list from the eastern Pacific.EUAETIDEUS GIESBRECHTI (Cleve)Aetideus giesbrechti Cueve, Marine investigations in South Africa, vol. 3 (1905),Copepoda, p. 185, 1904.
204 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 7; 15; 470; 3799; 4687; 5120; 5129; 5185; 5227; 5246; FijiIslands. This species is the type of the genus Euaetideus establishedby Sars in the Monaco plankton; specimens from three of theseAlbatross stations were identified by him. It was found at seven sta-tions in the Monaco plankton, nine stations in the Siboga plankton,and was reported from the Pacific in the Carnegie plankton.Genus EUAUGAPTILUS Sars, 1920EUAUGAPTILUS ANGUSTUS (Sars)Augaptilus elongatus Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 13, 1905b.Euaugaptilus angustus Saks, Res. camp. sci. Albert de Monaco, No. 69, p. 281,pi. 91, 1925.Stations 4671; 4691; 4695; 4717; 4719; 5320. Identified by Sarsfrom the first 5 of these 6 Albatross stations and from 16 in theMonaco plankton but not appearing in the other lists. It was firstreported from the Pacific area by Sewell (1932, p. 322).EUAUGAPTILUS BULLIFER (Gieabrecht)Augaptilus bullifer Giesbkecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1,p. 813, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 400,413, pi. 28, figs. 6, 21, 24 ; pi. 39, fig. 46, 1892.Stations 4687; 4717; 4732; 4740. Identified by Sars from theseAlbatross stations in the eastern Pacific and from 20 stations in theMonaco plankton ; also found at 2 Siboga stations.EUAUGAPTILUS ELONGATUS (Sars)Augaptilus elongatus Saks, Bull. Mus. Oceanogr. Monaco, No. 40, p. 13, 1905b.Euaugaptilus elongatus Sars, Res. camp. sci. Albert de Monaco, No. 69, p. 270, pi.84, 1925.Stations 5225; Fiji Islands. Established by Sars from 21 stationsin the Monaco plankton and reported by Farran (1908, p. 71) asAugaptilus elongatus off the coast of Ireland, but not occurring in theother plankton lists. All the previous specimens have been takenfrom the Atlantic Ocean, and this is the first Pacific record.EUAUGAPTILUS FACILIS (Farran)Augaptilus facilis Faeban, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 73,pi. 3, figs. 23, 24 ; pi. 8, figs. 1-6, 1908.Station 4717. Identified by Sars from this single station near theGalapagos Islands, and in the Monaco plankton from a single stationnear the Canaries, but not appearing in the other lists. Farran'soriginal specimens and others reported on by Wolfenden (1911, p.343) were all from the Atlantic. Sewell's record from Indian waters(1932, p. 322) may be the first Pacific one, as these specimens are prob-
COPEPODS GATHERED BY ALBATROSS?WILSON 205
ably the ones mentioned by Sars in the Monaco report as coming fromthe Pacific. EUAUGAPTILUS FILIGERUS (Clans)Hemicalanus filigcrus Glaus, Die freilebenden Copepoden, p. 179, 1863.Stations 7; 2219. Identified by Sars from the first of these Alba-tross stations in the Atlantic and from 16 Monaco stations also inthe Atlantic ; one specimen reported at each of 5 stations in the Sibogaplankton. EUAUGAPTILUS GIBBUS (Wolfenden)Augaptilus gibbus Wolfenden, Joiirn. Marine Biol. Assoc. United Kingdom, newser., vol. 7, No. 1, p. 122, 1904.Stations 1 ; 4427. A single female was identified from this stationin the lesser Antilles. Sars reported the species from four Monacostations, but it does not appear in any of the other lists.EUAUGAPTILUS HECTICUS (GiesbrecM)Plate 21, Figures 297, 299Augaptilus hecticus Giesbeecht, Atti. Accad. Lincei, Rome, ser. 4, vol. 5, sem.1, p. 814, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 400,414, pi. 1, fig. 3; pi. 27, fig. 30; pi. 28. figs. 5, 9, 16, 30, 33, 37; pi. 29, fig. 18;pi. 39, fig. 45, 1892.Stations 4695; 5451. Originally established by Giesbrecht uponspecimens obtained in the Mediterranean and placed in the genusAugaptilus. Afterward reported by Farran (1929, p. 269) from thesouthern Pacific off New Zealand and transferred to Sars' genusEuaugaptilus. The first of the above Albatross stations was off EasterIsland in the southern Pacific, while the second station was east ofLuzon in the Philippines. This species appears only in the Sibogaplankton list. EUAUGAPTILUS LATICEPS (Sars)Augaptilus laticeps Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 11, 1905b.Euaugaptilus laticeps Sars, R?s. camp, sci. Albert de Monaco, No. 69, p. 264,pi. 80, 1925.Stations 4646; 4652; 4657; 4663; 4664; 4671; 4676; 4679; 4687;4695 ; 4717 ; 5129 ; 5287. Identified by Sars from 9 of these Albatrossstations and from 35 stations in the Monaco plankton, but not appear-ing in any of the other lists. Reported from the Indian Ocean bySewell (1932, p. 321).EUAUGAPTILUS LONGIMANUS (Sars)Augaptilus longimanus Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 17, 1905b.Euaugaptilus longimanus Sars, Res. camp. sci. Albert de Monaco, No. 69, p. 282,pi. 92, 1925.
206 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 4681 ; 4687; 4717; 4730; 4734. Established by Sars in theMonaco plankton upon specimens of both sexes from 30 stations butnot present in the other lists. All his specimens came from aroundthe Azores and the Canaries in the temperate Atlantic. He also identi-fied these Albatross specimens from the five stations above in theeastern Pacific, the first to be reported since his original discovery, andthe first from that ocean.EUAUGAPTILUS MAGNUS (Wolfenden)Augaptilus magnus Wolfenden, Journ. Marine Biol. Assoc. United Kingdom, newser., vol. 7, No. 1, p. 122, 1904.Stations 4671 ; 4676 ; 4679 ; 4717. Wolfenden's original specimenscame from the west coast of Ireland and he later reported others fromthe southern Atlantic. Sars reported the species from 50 Monaco sta-tions and gave a full account of both sexes with figures in his Monacoreport, but it does not appear in the other lists.EUAUGAPTILUS NODIFRONS (Sars)Augaptilus nodifrons Sabs, Bull. Mus. Oceanogr. Monaco, No. 40, p. 13, 1905b.JEuaugaptilus nodifrons Sars, Res. camp. sci. Albert de Monaco, No. 09, p. 267, pi.82, 1925.Stations 4655 ; 4661 ; 4664 ; 4665 ; 4667-4669 ; 4676 ; 4679 ; 4705 ; 4715
;
4717 ; 4721 ; 4722 ; 5185 ; 5231. Established by Sars upon specimens ofboth sexes from 27 Monaco stations and fully described and figuredin his Monaco report. He also identified the Albatross specimens from14 of the 16 listed stations. This is one of very few instances wherethe same species of Euaugaptilus was found at successive stations inboth Albatross and Monaco planktons. [This clears up the matterof the Pacific record which has puzzled authors since Sars' statementin the Monaco report that the known distribution was "Ocean Atlan-tique et Pacifique" (see Sewell 1932, p. 316). SewelPs observationthat Sars had presumably recognized this species in some other collec-tion is shown to be true. The male was found in the Indian Ocean bySewell.?M. S. W.] EUAUGAPTILUS OBLONGUS (Sars)Augaptilus oolongus Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 11, 1905b.Euaugaptilus ollongus Sabs, Res. camp. sci. Albert de Monaco, No. 69, p. 266,pi. 81, 1925.Stations 4646 ; 4655 ; 4663 ; 4668 ; 4671 ; 4673 ; 4679 ; 4683 ; 4685 ; 4700.Established by Sars upon specimens from 27 Monaco stations in boththe Atlantic and Pacific. Sars also identified the species from 8 ofthese 10 Albatross stations. Otherwise reported only by Sewell (1932,p. 322) from Indian waters.
COPEPODS GATHERED BY ALBATROSS?WILSON 207EUAUGAPTILUS PALUMBOI (Giesbrecht)Augaptilus palumhii Giesbeecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1,p. 813, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 400,413, pi. 27, fig. 32 ; pi. 28, figs. 3, 15, 17 ; pi. 39, figs. 39, 50, 1892.Stations 9 ; 4652 ; 4673 ; 4687 ; 4705 ; 4708 ; 4722 ; 4730. Giesbrecht'stype specimens came from the eastern Pacific southwest of the Gala-pagos Islands. Sars identified the species from 3 Monaco and fromthese eight Albatross stations; A. Scott found it at six Siboga stations.It does not appear in the other lists, but Wolfenden (1911, p. 340) hasreported it as Augaptilus palumboi from the Antarctic, and so it iswell distributed, although the number of specimens obtained is quitesmall. EUAUGAPTILUS RIGIDUS (Sara)Pxate 6, Figure 61 ; Plate 7, Figure 62Augaptilus rigidus Sars, Bull. Inst. Oc^anogr. Monaco, No. 101, p. 21, 1907.Euai/gaptilus rigidus Sabs, R6s. camp. sci. Albert de Monaco, No. 69, p. 298, pi.103, 1925.Station 4687. Two females were identified by Sars from this Al-batross station and a single female from the Monaco plankton. Thelatter specimen upon which the species was founded had lost most ofthe setae upon its caudal rami, and so his excellent description andfigures were lacking in this detail. He made pencil sketches of theseperfect Albatross specimens, and they are reproduced here to supple-ment his Monaco figures.EUAUGAPTILUS SQUAMATUS (Giesbrecht)Augaptilus squamatus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem.1, p. 814, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp.400, 413, pi. 28, figs. 1, 12, 18, 22, 25, 34 ; pi. 39, fig. 38, 1892.Stations 4607 ; 4652 ; 4659 ; 4667 ; 4671 ; 4679 ; 4681 ; 4687 ; 4700 ; 4707
;
4711; 4717; 4719; 4721; 4722; 4734; 5185. Giesbrecht's type speci-mens came from north of the Marshall Islands in the tropical Pacific,and these Albatross stations are also in the Pacific. The Monaco sta-tions from which it was identified by Sars, on the contrary, were allin the northern Atlantic.Genus EUCALANUS Dana, 1853EUCALANUS ATTENUATUS (Dana)Calanus attenuatus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 18, 1849;United States Exploring Expedition, 1838-42 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1080, 1853 ; pi. 75, fig. 2 a-m, 1855.Stations 1 ; 13 ; 15 ; 16 ; 22 ; 25-27 ; 30 ; 31 ; 33 ; 41-44 ; 46 ; 48 ; 49 ; 5255; 57; 65; 67; 75; 76; 78; 2396; 2792; 2859; 3712; 3765; 3799; 3800;
208 BULLETIN 100, UNITED STATES NATIONAL MUSEUM3867; 4009-4011; 4086; 4580; 4583; 4585; 4588; 4590; 4592; 46054607; 4611; 4613; 4615; 4634; 4635; 4638; 4640; 4644; 4646; 46484650 ; 4663 ; 4665 ; 4667 ; 4671 ; 4673 ; 4676 ; 4706-4708 ; 4713-4716 ; 47194723; 4730; 4731; 4734; 4757; 4758; 4760; 4765; 4785; 4793; 48064926; 4952; 5030; 5120; 5125; 5129; 5133; 5134; 5155; 51755180 ; 5185 ; 5186 ; 5190 ; 5208 ; 5223 ; 5224-5229 ; 5231-5234 ; 5240 ; 52465262; 5263; 5287; 5319; 5320; 5338; 5342; 5396; 5399; 5415; 54225424; 5434; 5437; 5451; 5489; 5553; 5595; 5601; 5611; 5633; 5672H. 2700 ; H. 2701 ; Fiji Islands. As this list plainly shows, the above isthe most widely distributed species of the genus in the Albatrossplankton. It appears in all the lists except that of the Siboga plank-ton and is nearly always stated to be abundant.EUCALANUS BUNGII GiesbrechtEucalanus elongatus var. oungii Giesbrecht, Fauna und Flora des Golfes vonNeapel, monogr. 19, p. 149, 1892.Stations 5120 ; 5130 ; 5228 ; 5231 ; 5386. After a careful study of thevarieties of Eucalanus elongatus in the northeastern Pacific, Dr. Mar-tin W. Johnson (1938, p. 167) decided that two of them were worthyof being elevated to the rank of species. Since he found the males ofboth varieties and they differed specifically from each other and fromthe typical elongatus male, his claim seems valid. This is the first ofthe two varieties and is distinguished by an acute triangular foreheadin the female and by the details of the fifth legs in the male. A dozenspecimens were examined in sufficient detail to identify them and prob-ably others could be found.EUCALANUS CRASSUS GiesbrechtEucalanus crassus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2, p.333, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 132, 151,pi. 4, fig. 9 ; pi. 11, figs. 8, 10, 15, 17, 21, 22, 29, 33, 35, 38 ; pi. 35, figs. 4, 20, 26-28,1892.Stations 26; 27; 65; 78; 3829; 4673; 4765; 4926; 5129; 5134; 5175;5180; 5185; 5186; 5223; 5225; 5226; 5228; 5229; 5233; 5319; 5422;5553 ; 5595 ; 5611. This species was also found at 5 Monaco, 32 Siboga,and 34 Carnegie stations, and so it may be deemed to be welldistributed. EUCALANUS ELONGATUS (Dana)Calanuz elongatus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 18, 1849;United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1079, 1853 ; pi. 75, fig. 1 a-n, 1855.Stations 1; 15; 16; 25; 27; 31; 41; 43-45; 48; 49; 51; 52; 57; 65; 6670; 71; 76-78; 80; 3382; 3412; 3602; 3878; 3901; 4010; 4574; 45804613; 4634; 4635; 4640; 4644; 4648; 4663; 4667; 4671; 4676; 4679
COPEPODS GATHERED BY ALBATROSS?WILSON 2094681; 4683; 4685; 4687; 4691; 4700; 4705; 4707; 4709; 4711; 47134715-4719; 4721; 4722; 4745; 4759; 4760; 4765; 4766; 4774; 47834785; 4793; 4806; 4926; 4952; 5102; 5110; 5120; 5129; 5133; 51555175 ; 5176 ; 5180 ; 5185-5187 ; 5190 ; 5196 ; 5223-5225 ; 5227-5229 ; 52315233; 5240; 5262; 5263; 5287; 5319; 5320; 5348; 5386; 5422; 54345437; 5553; H. 2700; Nasugbu Bay, southern Luzon, PhilippineIslands; Fiji Islands. This species was found at 54 Monaco and 74Carnegie stations but was not present in the Siboga or Challengerplankton. EUCALANUS MONACHUS GiesbrechtEucalanus monachus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 333, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 132, 151,pi. 11, fig. 37 ; pi. 35, figs. 5, 14, 33, 38, 1892.Stations 15; 16; 59; 65-67; 71; 73; 75-80; 3765; 4594; 4611; 46154644; 4659; 4661; 4673; 4716; 4743; 4758; 4760; 4767; 4800; 49525129; 5185; 5186; 5209; 5225; 5227; 5228; 5231; 5233; 5234; 52625263; 5299; 5301; 5338; 5340; 5348; 5358; 5397; 5404; 5414; 54155436; 5488 ; 5489 ; 5507 ; 5530; 5601; 5647; 5651; Iloilo Straits, Philip-pine Islands. Present at 22 Siboga, 13 Monaco, and 21 Caimegie sta-tions and therefore fairly widely distributed.EUCALANUS MUCRONATUS GiesbrechtEucalanus mucronatus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 334, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 132,151, pi. 11, figs. 9, 26, 34 ; pi. 35, figs. 15, 35, 38, 1892.Stations 31; 49; 66; 71; 3829; 3901; 4598; 4605; 4667; 47134757; 4760; 4763; 4793; 4806; 4926; 5030; 5102; 5120; 5125; 51295178; 5179; 5185; 5186; 5190; 5223; 5225-5227; 5229; 5231; 52335246; 5263; 5287; 5386; 5397; 5422; 5436; 5553; 5578; 5611; H. 1689H. 2700 ; H. 2701 ; Amchitka Island, Alaska ; Sabtan Island, PhilippineIslands. Almost half the tows in which this species was found weresurface tows, the rest were vertical, starting from a depth of 300fathoms, one from as much as 550 fathoms, and several at less than250 fathoms. Since Sars found it at 34 Monaco stations and all hisspecimens came from "more or less considerable depths," it wouldseem as though this species did not frequent the surface as much asthe other species of this genus. It is included also in the Siboga andCarnegie lists.EUCALANUS MUTICUS [Sara MS.] Wilson, new speciesPlate 7, Figures 63-69Stations 4561; 4571; 4574; 4580; 4583; 4585; 4590; 4594; 4598;4605; 4607; 4613; 4634; 4646; 4650; 4652; 4655; 4657; 4659; 4663;
210 BULLETIN 100, UNITED STATES NATIONAL MUSEUM4664; 4667; 4668; 4671; 4673; 4676; 4700; 4713; 4719; 4721; 4722;4757 ; 4785 ; Fiji Islands. Although the species was found at so manystations, it was not at all abundant, two or three specimens at a stationbeing the usual number.Female.?Metasome elongate and narrow ; head fused with the firstsegment into a cephalothorax twice as long as the rest of the metasomeand the urosome combined. The rest of the thorax narrowed regu-larly backward, with the posterior corners smoothly rounded withoutspines. Forehead triangular, the apex sharp but without a spine;rostrum removed considerably from the apex, the filaments veryslender and curved like parenthesis marks. Fourth and fifth seg-ments fused on the ventral surface but separated dorsally and ele-vated considerably above the genital segment. Urosome less thanone-eighth as long as the metasome and 4-segmented ; genital segmentlonger than wide, the sides slightly convex and the ventral surfaceprotruding a little. Abdomen 3-segmented, the segments about thesame length and much wider than long. Caudal rami at the cornersof the anal segment, twice as long as wide and somewhat divergent.The second inner seta on the left ramus is greatly elongated, as innearly all the other species of this genus.First antennae reaching four segments beyond the tips of thecaudal rami, with a stout seta on the penultimate and antepenultimatesegments and all the other setae filiform. The two stout setae areplumose and often highly colored and reach to the tip of the elongatedseta on the left caudal ramus. The exopod of the second antenna is7-segmented, each of the two basal segments with two setae, the nextfour with one apiece and the end segment with three terminal setae,the two inner ones much elongated. Mandible palp twice the lengthof the chewing blade and biramose, the outer ramus with two excep-tionally long setae. The tooth at each end of the chewing blade isacute, the intervening ones are laminate and truncated. The maxil-liped is 8-segmented, the segments with 6:3:2:3:4:3:3:2 setae re-spectively, beginning at the base. The exopod of the first leg hasthree segments, the two basal ones without outer spines, the end seg-ment with one at the distal corner; the endopod is 2-segmented. Therami of the second, third, and fourth legs are each 3-segmented, theend segment of the exopod with two outer spines and one at the distalcorner; the fifth legs are lacking. Total length 5.65 mm. Metasome4.64 mm. long, 0.92 mm. wide.Male.?Body similar to that of the female except that the urosomeis 5-segmented and there are five pairs of legs instead of four. Thesefifth legs are uniramose and 4-segmented, the two basal segmentsnearly twice the width of the two terminal ones, the end segment
COPEPODS GATHERED BY ALBATROSS?WILSON 211tipped with an acicular spine as long as the last two segments com-bined. The penultimate segment also has a small spine at its outerdistal corner. Total length 5.50 mm.Types?V. S. K M. No. 70727; station 4673; latitude 12?30'30" S.,longitude 77?49'30" W., off Peru.Remarks.?This species may be recognized by the pointed fore-head, the 4-segmented urosome, the exceptional mandibular palp withits abnormal setae, and the peculiar characters of the exopod of thesecond antennae. The distance the pointed forehead projects beyondthe base of the rostrum and the details of the fifth legs in the maleare also aids in identification.EUCALANUS PILEATUS GiesbrechtEucalanus pileatus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4 vol. 4, sem. 2,p. 334, 1888 ; Fauna una" Flora des Golfes von Neapel, monogr. 19, pp. 132, 151,pi. 11, figs. 3, 28, 41 ; pi. 35, figs. 7, 8, 19, 39-41, 1892.Stations 4638 ; 5129 ; 5232. This is the smallest species of the genusand also one of the least abundant, although it has been reported fromthe Ked Sea and the Atlantic, Pacific, and Indian Oceans. It waspresent in the Sihoga plankton but not in any of the other lists.EUCALANUS SUBCRASSUS GiesbrechtEucalanus subcrassus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 334, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 132, 151,pi. 11, figs. 6, 14, 19, 30, 39 ; pi. 35, figs. 12, 16, 31, 32, 1892.Stations 48; 4638; 4640; 4644; 4652; 4673; 4716; 4926; 5102; 5129;5134 ; 5180 ; 5185 ; 5223-5226 ; 5230 ; 5231 ; 5233 ; 5262 ; 5633. Identifiedby Sars at 5 of these Pacific stations and by Scott at 45 Siboga stationsbut not present in the other planktons.EUCALANUS SUBTENUIS GiesbrechtEucalanus subtenuis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 333, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 132, 150,pi. 11, figs. 4, 23, 42 ; pi. 35, figs. 9-11, 18, 29, 30, 1892.Stations 4611 ; 4646 ; 4650 ; 4652 ; 4657 ; 4659 ; 4663-4665 ; 4667 ; 4671
;
4673; 4713; 4715; 5120; 5134; 5180; 5185; 5223; 5225; 5230; 5232;5301. Identified by Sars from 11 of these Pacific Albatross stationsand at 3 Monaco stations ; found at 34 Siboga stations and at 6 Carnegiestations in the Pacific.Genus EUCHAETA Philippi, 1843EUCHAETA ACUTA GiesbrechtEuchaeta acuta Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr. 19,pp. 246, 262, pi. 16, figs. 6, 10, 14, 18, 21, 27, 39 ; pi. 37, figs. 47, 48, 52, 1892.843804?50 6
212 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 1; 71; 76-78; 3930; 3980; 4427; 4580; 4583; 4585; 4587;4611 ; 4644 ; 4646 ; 4652 ; 4659 ; 4685 ; 4691 ; 4716 ; 4721 ; 4740 ; 5030 ; 5129
;
5185; 5186; 5224; 5225; 5227; 5231; 5233; 5246; 5340; 5422; FijiIslands. Identified by Sars from 9 of these Albatross and at 76 Mo-naco stations and present also at 53 stations in the Carnegie plankton,while only 4 specimens were reported in the Siboga plankton.EUCHAETA CONCINNA DanaPlate 8, Figures 72-73 ; Plate 22, Figure 326Euchaeta concinna Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 21, 1849;United States Exploring Expedition, 183S-42 (Wilkes), vol. 14, pt. 2, Crus-tacea, p. 1088, 1853 ; pi. 77, figure 4a-c, 1855.Stations 4684; 4700; 4731. Established by Dana upon specimensof both sexes from the Straits of Banca east of Sumatra and foundalso at 40 stations in the Siboga plankton, but not present in the otherlists. The female can be recognized by the structure of the genitalsegment, which is clearly shown in Sars' figures here reproduced.The male is distinguished by the detailed structure of the last segmentof the left fifth leg, which is shown in figure 326.EUCHAETA HEBES GiesbrechtEuchaeta hebcs Giesbrecht, Atti Acad. Lincei, Rome, ser. 4, vol. 4, sem. 2, p. 337,1S88 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 246, 263, pi. 15,figs. 29, 30 ; pi. 16, figs. 3-5, 20, 31, 32, 38, 44 ; pi. 37, figs. 32, 33, 54, 1S92.Stations 3765 ; 5262. Identified by Sars from seven Monaco stationswith both sexes fully described in the Monaco report. It is presentin the Carnegie but not in the other plankton lists but has been reportedcasually in small numbers from nearly all the oceans.EUCHAETA LONGICORNIS GiesbrechtPlate 8, Figures 79-83Euchaeta longicornis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 337, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 246, 264,pi. 16, figs. 35, 37 ; pi. 37, figs. 45, 46, 1892.Stations 4634 ; 4635 ; 4638 ; 4640 ; 4644 ; 4646 ; 4652 ; 4663 ; 4664 ; 4671
;
4715 ; Fiji Islands. A single female was found in the Siboga planktonand no specimens in the other planktons, and since all Giesbrecht's orig-inal specimens were females the male has remained unknown.Furthermore, no dorsal view of the female has ever been published,and the descriptions given by Giesbrecht and Scott are very meager,especially that of Scott. Accordingly, the figures drawn by Sars, whoidentified these Albatross specimens, are here reproduced, and a fulldescription of both sexes is given.
COPEPODS GATHERED BY ALBATROSS?WILSON 213Female.?Metasome elliptical, a little more than twice as long aswide, the forehead triangular, coming to a sharp point, the fourth andfifth segments fused and smoothly rounded at the posterior corners,without hairs. Urosome very slender, half as long and a third as wideas the metasome and 4-segmented. Genital segment as long as the entireabdomen and twice as long as wide, with a peculiar process on the rightside near the posterior corner that is plainly visible in dorsal view.This process is laminate and extends diagonally backward with arounded tip and a small spine on the outer margin at the base of therounded portion. Abdomen 3-segmented, the segments diminishingconsiderably in length and a little in width backward. Caudal ramias long as the anal segment, longer than wide, each with 4 setae, twoterminal and two on the outer margin, all about the same length.First antennae filose extending to the tips of the caudal rami andsparsely setose. The exopod of the second antenna is a little longerthan the endopod ; the spines on the exopods of the swimming legs areshort and stout, and there is an incision in the segment inside the baseof each spine. Total length 3.10 mm. Metasome 2.10 mm.Male.?Body elongate and slender ; metasome corresponding to thatof the female. Urosome 5-segmented ; the genital segment propor-tionally much shorter than that of the female and without protuber-ance. The antennae, mouth parts, and first four pairs of legs are thesame as in the female. The fifth legs are surprisingly large for sosmall a species and reach far beyond the tips of the caudal rami (fig.83). The second basipod of the right leg is considerably swollen, andthe basal half of the endopod is also swollen, while the distal half tapersto a sharp point. The proximal portion of the exopod is of uniformwidth and just reaches the tip of the endopod. The distal portion islonger than the proximal, very slender, slightly curved, and taperedto an acuminate point. The second basipod of the left leg is muchlonger than that of the right and swollen a little proximally. Theendopod is entirely lacking; the second segment of the exopod has along terminal stylet swollen at its base and tapered to an acuminatepoint. Opposite the base of the stylet is an inner process with spinesalong its margin and at its tip and between the two is an innerunarmed process. Total length 2.65 mm. Metasome 1.80 mm. long.Allotype male.?U.S.N.M. No. 70732 ; station 4671, latitude 12?07' S.,longitude 78 ?28' W.Remarks.?The fifth legs of a fully matured male are shown in figure83, while those of a juvenile male appear in figure 88. The laminateprocess on the right margin of the female genital segment and thepeculiar stylet at the tip of the left fifth leg of the male are disinguishing characters.
214 BULLETIN 100, UNITED STATES NATIONAL MUSEUMEUCHAETA MARINA (Prestandrea)Cyclops marinus Pbestandeea, Effemeridi Sci. e Lett. Sicilia, vol. 6, p. 12, 1833.Stations 1; 5; 6; 14-16; 18; 19; 24; 27; 30-32; 42; 44-46; 48; 52-55; 57, 59, 60, 65, 70, 71, 75-78; 80; 173; 236; 2236; 2396; 3412; 37123765; 3789; 3791; 3799; 3829; 3834; 3867; 3878; 3901; 3911; 39123921; 3927; 3929; 3930; 3932; 3980; 4009-4011; 4037; 4086; 41904427 ; 4580 ; 4583 ; 4588 ; 4590 ; 4592 ; 4594 ; 4605 ; 4607 ; 4611 ; 4613 ; 46154619; 4635; 4638; 4640; 4644; 4646; 4657; 4659; 4661; 4667; 46714673 ; 4681 ; 4684 ; 4687 ; 4700 ; 4705-4709 ; 4713^716 ; 4721 ; 4722 ; 47244730; 4731; 4734; 4738; 4915; 4926; 4952; 5102; 5105; 5120; 51295133; 5134; 5155; 5175; 5185; 5186; 5190; 5196; 5223-5227; 52295231; 5233; 5240; 5246; 5258; 5262; 5263; 5308; 5319; 5320; 53385340; 5342; 5348; 5358; 5396; 5397; 5422; 5434; 5437; 5451; 54895578 ; 5611 ; 5627 ; Fiji Islands. As shown above this is the most widelydistributed species in the Albatross plankton and it is present in allthe plankton lists. It frequents tropical and temperate regions ofall oceans, often in abundance.EUCHAETA MEDIA GiesbrechtPlate 22, Figures 323-325EucJiaeta media Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2, p. 337,1888 ; Fauna und Flora des Golfes von Neapel, monogr, 19, pp. 246, 263, pi. 16,figs. 13, 36 ; pi. 37, figs. 39, 40, 1892.Stations 3867; 4038; 5185; 5227. Established by Giesbrecht uponfemale specimens from the tropical Pacific, this species appeared inthe Siboga plankton as a single female from the East Indies but wasabsent from the other lists. However, 40 females were recorded byEsterly (1905, p. 160) off the coast of California, about 2,700 wereobtained by Farran (1929, p. 238) in the Terra Nova plankton, andSewell (1929, p. 149) reported a few from the Bay of Bengal. Butin spite of this abundance the male has hitherto remained unknownand is here described for the first time. Incidentally the statementby Scott that the distribution of this species is "very limited" mustbe given a strictly geographical and not at all a numericalinterpretation.Female.?Metasome elliptical, three times as long as wide, muchnarrowed anteriorly, not as much posteriorly. Forehead with a notchabove the rostrum, which extends almost horizontally forward, pos-terior corners of the last thoracic segment slightly but distinctlyangular. Urosome two-fifths as wide as and three-fifths as long as themetasome and 4-segmented. Genital segment asymmetrical, swollenanteriorly on the left side and posteriorly on the right side with alarge ventral protuberance having an irregular outline. The filiform
COPEPODS GATHERED BY ALBATROSS?WILSON 215
appendicular setae on the caudal rami are longer than the plumosesetae. Total length 3 to 3.75 mm. Metasome 2.28 mm. long.Male.?Metasome like that of the female but narrowed more an-teriorly and with the posterior corners more angular, extending backbeyond the center of the genital segment. The rostrum extends al-most horizontally forward with a well-defined notch above its base.Urosome two-fifths as long and only a fourth as wide as the metasome,and 5-segmented. The first four segments are about the same lengthand width, the fifth or anal segment is as wide but much shorter.The caudal rami are widely separated, divergent, and wider thanlong, each with one appendicular and five plumose setae.The first antemiae do not quite reach the posterior corners of themetasome ; they are rather slender, and neither of them is geniculate.The second antennae, mouth parts, and first four pairs of legs are likethose of the female. The fifth legs are shown in figure 324. The twobasipod segments of the right leg are considerably swollen ; the endo-pod is shaped like a ladle and is about as long as the proximal seg-ment of the exopod. The bowl of the ladle is concave toward theexopod and fits around the inner side of the latter. The proximalsegment of the exopod is swollen through the center and tapers towardeach end. The terminal segment is an elongated slender spine enlargedat its base and acuminate at the tip. The two basipod segments of theleft leg are about twice as long as those of the right leg; there is noendopod, and the exopod is 3-segmented. The proximal segment isnarrow at its base and enlarges distally; the second segment is aswide as long, with a spine at the inner distal corner and at the centerof the distal margin a slender process with a flattened spatulate tip.The third segment is half as wide as the second, hollowed on its innersurface, and enlarged at the distal end into a knob with two innerspines and a much longer terminal stylet. Total length 3.27 mm.Metasome 2.50 mm. long.Allotype male.?U.S.N.M. No. 74114; station 5185, latitude10?05'45" N., longitude 122?18'30" E., between Panay and Negros,Philippine Islands.Remarks.?The asymmetry of the left side of the genital segmentand of the ventral protuberance in the female and the ladle-shapedendopod of the right leg in the male are the chief characteristicsof this species. ETJCHAETA PUBERA SarsPlate 22, Figures 327-329 ; Plate 23, Figures 330, 331Euchaeta pubera Sars, Bull. Inst. Oceanogr. Monaco, No. 101, p. 13, 1907 ; Res.camp. sci. Albert de Monaco, No. 69, p. 109, pi. 30, figs. 16-18, 1925.
216 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 3867 ; 3921 ; 4683 ; 4685 ; 5185 ; 5231. Identified by Sars inthe Monaco plankton ; based on female specimens only which he fullydescribed and figured. He claimed that Scott's Euchaeta wolfendeniin the Siboga plankton was a synonym of pubera and of necessityadopted the wolfendeni male as the male of pubera. It will be shown,however, under wolfendeni (p. 217) that the two species are not thesame, and that leaves pubera with females alone. Fortunately, theAlbatross specimens included males and one of these is here describedand figured for the first time.Female.?Metasome elliptical, 2% times as long as wide, narrowedconsiderably in front but only a little behind, with broadly roundedposterior corners. Urosome nearly half as long and a third as wideas the metasome and 4-segmented. Genital segment as long as theentire abdomen, with a large ventral protuberance, having on theright side of the genital area a short lamella terminating in a curvedpoint. The first antennae are slender and reach slightly beyond theposterior corners of the metasome. Total length 4 mm. Metasome2.92 mm. long, 1.15 mm. wide.Male.?Metasome with the same proportions as in the female butmore pointed in front, with the posterior corners evenly rounded inside view but in dorsal view narrowed to thin edges turned outward.Urosome more than half as long and less than a fourth as wide asthe metasome, 5-segmented, the segments narrowing slightly back-ward. The genital segment is shorter than either of the first twoabdominal segments, which are of equal length and one-half longerthan the penultimate segment. The anal segment is so short as to bescarcely visible and the caudal rami are also very short andsubglobular.The first antennae are longer than in the female and reach the ab-domen, and neither of them is geniculate. The second antennae,mouth parts, and first four pairs of legs are like those of the female.The fifth legs are large and extend beyond the tips of the caudalrami in spite of the length of the urosome. The basipod of the rightleg is considerably swollen; the exopod is 2-segmented, the distalsegment tapered into a curved spine. The endopod is also 2-seg-mented but no longer than the basal segment of the exopod. In theleft leg the second basipod is elongate but not swollen and carries onits inner margin near the tip the rudiment of an endopod. The innerprojection of the second segment of the exopod is enlarged and notchedat its tip, and the outer margin is fringed with spinules. The thirdsegment has a rounded protuberance tipped with a spine on itsinner margin opposite the tip of the projection of the second segment.Between the base of the third segment and this projection are the
COPEPODS GATHERED BY ALBATROSS?WILSON 217processes seen in figure 331. The tip of the third segment is taperedinto an exceptionally long spine. Total length 3.75 mm. Metasome2.50 mm. long, 1 mm. wide.Allotype male.?U.S.N.M. No. 74115; station 5185, latitude10?05'45" N., longitude 122?18'30" E., between Panay and Negros,Philippine Islands.Remarks.?The lamella with the curved point on the ventral pro-tuberance of the female is easily visible in side view and, togetherwith the subglobular caudal rami of the male, makes identificationeasy. EUCHAETA SPINOSA GiesbrechtPlate 18, Figures 243-244Euchaeta spinosa Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr.19, pp. 246, 263, pi. 16, figs. 12, 26, 34, 47 ; pi. 37, figs. 31, 34, 35, 50, 1892.Stations 3 ; 19 ; 22 ; 31 ; 41 ; 42 ; 48 ; 52 ; 2861 ; 3694 ; 3712 ; 3765 ; 38003878; 3932; 4009; 4010; 4190; 4583; 4588; 4646; 4694; 4700; 47074719; 4722; 4757; 4760; 4793; 4926; 4952; 5120; 5129; 5185; 51865190 ; 5196 ; 5224 ; 5226-5229 ; 5231 ; 5233 ; 5240 ; 5246 ; 5263 ; 5320 ; 53965397 ; 5422 ; 5451 ; 5578. Identified by Sars from 13 of these Albatrossand from 30 Monaco stations but not found in the Siboga plankton andonly twice in the Carnegie plankton.EUCHAETA WOLFENDENI A. ScottPlate 8, Figures 74-78Euchaeta wolfendeni A. Scott, Copepoda of the Siboga Expedition, monogr. 29a,pt. 1, p. 68, pi. 17, figs. 1-12, 1909.Stations 4592; 5120. Identified by Sars from the first of thesestations and labeled by him "E. wolfendeni A. Scott." Figures 74-76 are reproduced from Sars' pencil drawings and show conclusivelythat wolfendeni cannot be a synonym of pubera as claimed by Sars inhis Monaco report. He himself drew these figures and those shownfor the pubera female (figs. 328, 329), and they are certainly not ofthe same species. The pubera urosome lacks the scalloped border onthe right margin of the genital segment, while the wolfendeni uro-some lacks the lamina with a hooked point on the ventral protuber-ance, and the latter is little more than half as large as the former.But these figures of Sars do agree with those given by Scott in the/Siboga report for his new species wolfendeni. We are forced to con-clude, therefore, that we are dealing with two valid species and thatneither of them is a synonym of the other. [This was also concludedby Sewell (1929, p. 154), who found it well distributed in Indianwaters.?W. L. S.]
218 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGenus EUCHIRELLA Giesbrecht, 1888EUCHIRELLA BELLA GiesbrechtPlate 8, Figure 84 ; Plate 9, Figure 92-94, Plate 19, Figures 247-248, 261-265Euehirella bella Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 336, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 233,244, pi. 15, fig. 26, 1892.Euehirella amoena Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 336, 1888.Euehirella amona Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr.19, pp. 233, 244, pi. 15, fig. 20, 1892.?Rose, Res. camp. sci. Albert de Monaco,No. 78, pp. 21-23, pi. 1, fig. 3, 1929.Stations 15; 4638; 4665; 4667; 4700; 4710; 4715; 4716; 5102. In1888 Giesbrecht established two new species of this genus
?
bella,based upon a single female from the eastern Pacific south of theEquator, and amoena, based upon a single male from the easternPacific north of the Equator. In his Naples monograph he gave avery brief (five lines) description of bella and a still briefer (twolines) one of amoena, each with a single figure. Since the originaldiscovery, amoena has been reported three times. It was merelynamed by Scott in the Siboga plankton and by Esterly from off south-ern California, but was given a detailed description by Rose in theMonaco plankton with 15 figures. Except for Sewell's record fromthe Indian Ocean (1929, p. 109) the original specimen of bella hasremained the only one recorded up to the present time. But the dis-covery of 5 amoena males and 20 bella females in the surface tow atstation 4700 suggested that they were male and female of the samespecies, as can be seen from the complete description of an Albatrossfemale given below for comparison with Rose's excellent descriptionand figures of the male. There is no doubt that they are the male andfemale of the same species. The name bella takes precedence overamoena.Female.?Metasome elliptical, twice as long as wide; foreheadslightly pointed ; rostrum short and conical ; posterior corners smoothlyrounded. Urosome one-fourth as long and wide as the metasome;genital segment asymmetrical, protruding to the left and making thesegment wider than long. The three abdominal segments are aboutthe same length and width and combined are as long as the genitalsegment but narrower. Caudal rami as wide as long, widely separatedat the corners of the anal segment and divergent.The first antennae are slender and reach the tips of the caudalrami; they have long filiform setae on several of the segments butlack the aesthetasks so numerous in the male. The exopod of the sec-ond antenna is not quite three times as long as the endopod ; the termi-nal segment of the latter has six and five setae as stated by Giesbrecht.
COPEPODS GATHERED BY ALBATROSS?WILSON 219The second basipod segment carries at its base on the inside a smallprocess tipped with two stout setae. The chewing blade of the mandi-ble has a short truncate tooth at the outer corner and an acuminatespine at the inner corner and between them two irregular rows of teeth,some acute, and some truncate. The mandibular palp is biramose,the rami 2-segmented, the proximal segments unarmed, the distalexopod segment with six setae, the endopod segment with eight setae.The maxilliped is T-segmented, the first segment with four setae onthe ventral surface, the second segment with three setae at the centerof the posterior margin, the five distal segments each with two long,curved setae.The first legs are small, the exopod 2-segmented, the endopod 1-segmented; the two basipod segments are rectangular, and each hasa tuft of hairs on its inner margin. The basal exopod segment hastwo spines on its outer margin and a seta at its inner distal corner;the end segment has a spine at the distal corner and four inner setae.The endopod has five setae and does not reach the distal end of thefirst exopod segment. The first basipod of the second leg has a bunchof hairs and a plumose seta on its inner margin ; the second basipodis unarmed.. The endopod is 1-segmented with six setae, one outer,two terminal, and three inner, and reaches beyond the center of thesecond exopod segment. The exopod is 3-segmented; the basal seg-ment has an outer spine and an inner seta, the second segment has twoouter spines and an inner seta, the third segment has two outer spines,two at the distal corner, one terminal and four inner setae. The thirdand fourth legs have 3-segmented rami ; the two proximal exopod seg-ments each carry two spines at the outer distal corner and an innerseta; the end segments each have two outer spines, two at the distalcorner, a stout serrated terminal spine and four inner setae. Theendopods just reach the distal end of the second exopod segment; thefirst segment has two outer spines and an inner seta ; the second seg-ment has one outer spine and a fringe of hairs and an inner seta;the third segment has five setae. It is the second basipod of the fourthlegs that carries the distinctive armature in the females of this genussince they lack fifth legs. In the present species most of the femalescarry on the inner margin of this basipod segment a large plumoseseta and a row of four spines fused at their bases (fig. 94) , but rarelythree spines and a seta (fig. 248). The above description is based ona female specimen from station 5102.EUCHIRELLA BITUMIDA WithPlate 23, Figures 332-335Euchirella bitumida With, Danish Ingolf-Expedition, vol. 3, pt. 4, p. 131, fig. 34,pi. 5, figs. 9 a-g ; pi. 8, figs. 4 a-e, 1915.
220 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 3712 ; 4680 ; 4757 ; 4758 ; 5120 ; 5185 ; 5227 ; 5232 ; 5233 ; 5246
;
5263 ; 5287 ; 5296. Established by With upon female and young malespecimens from the North Atlantic and reported by Sars from 28Monaco stations all in the Atlantic and all the specimens females.It is not included in any of the other plankton lists. The Albatrosssecured the first adult males to be obtained. This is also the firstrecord from the Pacific.Female.?Metasome elongate elliptical, two and a half times as longas wide, and only slightly narrowed at either end. Head with aprominent crest in the form of a helmet at the top of the forehead inside view; posterior corners of the last segment rounded. Urosomeless than a fourth as long as the metasome; genital segment asym-metrical, swollen on the right side. First antennae reaching the centerof the genital segment. Proximal segment of the fourth basipod witha plumose seta and a single spine on the inner margin near the distalend. Total length 6.10 to 6.70 mm.Male.?Metasome considerably narrower than in the female; headwith a prominent frontal crest but not galeate as in the female ; fifthsegment with rounded posterior corners. Urosome one-fifth as wideand two-fifths as long as the metasome and 5-segmented, the analsegment very short. Caudal rami longer than wide, the setae nearlyas long as the entire abdomen.First antennae reaching the middle of the genital segment, the basalsegments stout, the remainder quite slender, neither antenna genicu-late. The exopod of the second antenna about one-third longer thanthe endopod ; the mouth parts and first four pairs of legs like those ofthe female. In the fourth legs the first segment of the basipod has aplumose seta on the inner margin; the second basipod is imarmed.The first segment of the exopod has a tripartite spine at its outer distalcorner and the first segment of the endopod has two short spines onthe outer margin. The fifth legs are shown in figure 334. The twobasipods of the right leg are considerably thickened and elongated,and the second one is invaginate at the distal end for the reception ofthe exopod. The latter is 2-segmented ; the first segment is widenedat its base where it is inserted in the basipod and has two knobs on itsinner margin. The end segment is curved a little and its inner surfaceis cut transversely into a series of flattened ridges (fig. 335). Theendopod is more strongly curved and also has two knobs on its innersurface, a larger one near the base and a smaller one near the tip.The left leg is uniramose, 4-segmented, and tipped with a smallcurved spine. Total length 5.9 to 6.10 mm. Metasome 4.25 mm. long.Allotype male.?U.S.N.M. No. 74117; station 5227, latitude12?53'45" N., longitude 121?52'30" E., east of Mindoro, PhilippineIslands.
COPEPODS GATHERED BY ALBATROSS?WILSON 221Remarks.?This new male bears most resemblance to that of mes-sinensis but is a half larger and has a much more pronounced frontalcrest. It also closely resembles Esterly's ( 1911, p. 321) species propria,but the latter has no frontal crest and its metasome is proportionallymuch longer. EUCHIRELLA BREV1S SarsEuchirella brews Sabs, Bull. Mus. Oceanogr. Monaco, No. 26, p. 12, 1905a ; R6s.camp. sci. Albert de Monaco, No. 69, p. 71, pi. 21, flgs. 1-7, 1925.Stations 5; 15; 16; 19; 27; 39; 76; 3799; 4685; 4699; 4700; 4707;4721 ; 4722 ; 4732 ; 4734 ; 4750 ; 4757 ; 4793 ; 4926 ; 5129 ; 5185 ; 5224 ; 5227
;
5229; 5231; 5233; 5246; 5422. Established by Sars on female speci-mens only ; no male has yet been obtained. Reported in the Carnegieplankton list. EUCHIRELLA CURTICAUDA GiesbrechtPlate 23, Figure 336Euchirella curticauda Giesbkecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 336, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 233,244, pi. 15, flgs. 3, 13, 25 ; pi. 36, figs. 19, 20, 1892.Stations 2 ; 44 ; 3712 ; 3799 ; 3800 ; 3829 ; 4683 ; 4685 ; 4687 ; 4693 ; 4721
;
4730; 4742; 4926; 5120; 5129; 5185; 5227; 5231; 5233; 5246; 5263;5287 ; 5553. This species was found in the Siboga, Monaco and Car-negie lists, but more abundantly in the Monaco plankton. It wasfounded upon females only, but Sars included both sexes in his Monacoreport. Some of the Albatross males show a variation in the structureof the fifth legs and this has been represented in figure 336. The rightendopod is relatively shorter and more pointed at its tip, while theteeth at the tip of the exopod are blunt instead of acuminate and longerthan in the Sars' figure. The distal segment of the left leg is tippedwith a fingerlike process instead of a plumose seta. In all other re-spects these males correspond with Sars' figures. The species can bedistinguished by the fact that the crest on the head is more or less tri-angular in both sexes and the female has a row of 9 to 13 spines acrossthe basipod of the fourth legs.EUCHIRELLA GALEATA GiesbrechtPlate 8, Figures 85-88 ; Plate 9, Figures S9-91 ; Plate 23, Figure 337Euchirella galeata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 336, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 233,244, pi. 15, fig. 18 ; pi. 36, fig. 22, 26, 1892.Stations 2; 27; 4611; 4637; 4638; 4650; 4652; 4661; 4663-4665;4667; 4668; 4671; 4676; 4679; 4700; 4705; 4707; 4715; 4717; 4719;4721 ; 4742 ; 4757 ; 4758 ; 5120 ; 5185 ; 5227 ; 5231 ; 5233 ; 5246 ; 5263 ; 5320.The female of this species was very briefly described and inadequately
222 BULLETIN 100, UNITED STATES NATIONAL MUSEUMfigured by Giesbrecht in his Naples monograph and the male recordedas unknown. Since that time the description and figures of the fe-male have not been improved and only two statements with regard tothe male have appeared. Esterly (1905, p. 156) said "head as in thefemale," and that constituted his entire description. A. Scott recordedtwo young males in the Siboga plankton but gave no word of descrip-tion. The pencil drawings of this species made by Sars included bothsexes and were so good that they are here reproduced and a completedescription is given.Female.?Metasome stout and more or less cylindrical; head nar-rowed anteriorly with a median crest, which is raised into an antero-dorsal cap or helmet, semicircular in outline when seen laterally.This is similar to the crest on the head of bitumida and curticaudabut is relatively smaller. Head fused with the first segment, theresultant cephalothorax just exceeding the length of the rest of themetasome. The fifth segment is rounded or somewhat squarely trun-cated at the posterior corners and reentrant at the center dorsally.Urosome about one-fifth as long as the metasome and 4-segmented;the genital segment is wider than long, with an asymmetrical processon the left side. Each of the three abdominal segments is also widerthan long and they increase in length backward. The caudal ramiare attached to the posterior corners of the anal segment, far apartand divergent, each with four setae, the outer one on the outer marginnear the base of the ramus. There are two ovisacs, each cylindricaland two-thirds as long as the entire body, the eggs moderately largoand irregularly arranged, 30 to 35 in each ovisac.The first antennae are slender and reach beyond the caudal rami
;
the exopod of the second antenna is nearly three times as long as theendopod and armed with very long setae (fig. 86). The chewingblade of the mandible has a long acuminate tooth at the inner corner,with four larger curved teeth and two smaller straight ones scatteredalong its edge. The exopod of the first leg is 2-segmented, the endopod1-segmented ; the exopod of the second leg is 3-segmented, the endopod1-segmented ; both rami of the third and fourth legs are 3-segmented.The first basipod of the fourth leg has a plumose seta on its innermargin and a single spine on its posterior surface. Total length5.86 mm. Metasome 4.90 mm. long 1.75 mm. wide.Male.?Metasome with the same general form as that of the femalebut a little smaller ; head with the crest or helmet so reduced as to beeasily overlooked; posterior corners of fifth segment evenly rounded.Urosome 5-segmented with the genital segment perfectly symmetricaland the abdominal segments longer than wide and diminishing inlength backward. Caudal rami similar to those of the female butwith longer setae.
COPEPODS GATHERED BY ALBATROSS?WILSON 223The antennae, mouth parts, and first four pairs of legs are like thoseof the female, while the fifth legs resemble at first sight those of themessinensis male. Closer examination, however, reveals that the leftleg is fully three-fourths as long as the right. It is 3-segmented andthe terminal segment is armed with three small protuberances on itsinner margin; the left endopod has entirely disappeared (cf. fig. 88).In the right leg the endopod is considerably inflated, the exopod is2-segmented, and the endopod 1-segmented and considerably shorter.The proximal segment of the exopod has four processes on its innermargin while the distal segment is fringed on its inner margin withshort hairs and is bluntly pointed, with two knobs on the outer marginnear the tip. The endopod reaches beyond the tip of the basal exopodsegment and is curved, with two acute processes on its inner margin.Total length 5.33 mm. Metasome 4.38 mm. long.Allotype male.?U.S.N.M. No. 70733 ; station 4664, latitude 11?30' S.,longitude 87? 19' W., off Peru.Remarks.?About a dozen males only 4 mm. long were taken withthe others. The fifth legs of one of them are shown in figure 88. Thisfigure indicates that even if the left endopod has entirely disappearedin the adult male it was certainly present during development. Onpage 65 of his Monaco report Sars calls attention in giving the charac-teristics of the genus Euchirella to the very remarkable presence ofpaired egg strings in three species. He showed two of the species inmessinensis (pi. 19) and brevis (pi. 21), and as he had already exam-ined the Albatross plankton this must be the third species to which hereferred. EUCHIRELLA GRANDICORNIS [Sars MS.] Wilson, new speciesPlate 9, Figtjees 98-100 ; Plate 10, Figures 101-106Station 4681. A male and a female from this station were identifiedas a new species by Sars and given the above name.Female.?Metasome subcylindrical, flattened a little on the ventralsurface, three times as long as wide and narrowed at both ends. Headfused with the first segment ventrally but partially separated dorsallywith a well-defined frontal crest. Fourth and fifth segments fusedwith the posterior corners projecting backward to the center of thegenital segment. Urosome 4-segmented, less than a fourth as longas the metasome and about the same width throughout. Genital seg-ment as wide as long, perfectly symmetrical, with straight parallelsides; abdomen 3-segmented, the segments nearly the same length,which is half the width. Caudal rami at the corners of the analsegment and divergent, each one-half longer than wide, with five shortsetae and a much longer inner seta.
224 BULLETIN 100, UNITED STATES NATIONAL MUSEUMFirst antennae 24-segmented, considerably thickened at the baseand extending four segments beyond the tips of the caudal rami.The proximal half is quite regularly and densely setose, but on thedistal half the setae are scattered irregularly. The endopod of thesecond antenna is five-sevenths as long as the exopod, and the latteris armed with very long setae densely plumose at their tips. Thechewing blade of the mandible has very blunt teeth ; the exopod of thepalp is 4-segmented, with very long setae, the endopod 2-segmentedwith much shorter setae (fig. 99). The second maxilla has fivedigitiform lobes each with two setae, both lobes and setae very long(fig. 104). The maxilliped is 7-segmented, the proximal segmentwith three setae at the center of the outer margin and a curved spineat the outer distal corner. The second segment has three setae onthe inner margin, and the five short terminal segments have a densearmature of very long setae. The exopods of all four pairs of legsare 3-segmented, the endopods have 1, 2, 3, and 3 segments, respec-tively. The basipod of the fourth leg has a row of nine very longacicular spines. The terminal spines on the second, third, and fourthexopods are very long and slender, pectinate on the outer and plumoseon the inner side. Total length 7 mm. Metasome 5.55 mm. long;1.90 mm. wide.Male.?Metasome similar to that of the female but narrowed moreanteriorly and with a more pronounced frontal crest. The head andfirst segment are completely fused, with no dorsal groove of separa-tion ; the posterior corners of the metasome are broadly rounded, andthe posterior margin is very reentrant. The urosome is 5-segmented,the second segment the longest and the anal segment the shortest andall about the same width.The first antemiae are shorter than in the female and reach onlyto the abdomen, and neither of them is geniculate. The second an-tennae, mouth parts, and first four pairs cf legs show no sexual dif-ferences. The two fifth legs are about the same length and each isbiramose ; the two basipods of the left leg are much the longer, whilethose of the right leg are more swollen. The left exopod is 2-seg-mented, the end segment a curved claw, the endopod is 1-segmentedand rodlike and only three-fourths as long as the basal exopod seg-ment. The exopod of the right leg is 3-segmented, the basal segmentwith three angular projections on its inner margin; the right endopodis 1-segmented and curled at its tip. Total length 7 mm. Metasome5.45 mm. long, 2 mm. wide.Types.?U.S.N.M. No. 67131 ; station 4681, latitude 18?47' S., longi-tude 89?26' W., Peru to Easter Island.Remarks.?The distinguishing characters of this species are the lowfrontal crest, the length of the first antennae in the female, and the
COPEPODS GATHERED BY ALBATROSS?WILSON 225
structure of the fifth legs in the male. The exceptionally long setaeon the terminal segments of the maxillipeds will also aid in identi-fication. EUCHIRELLA INTERMEDIA WithEuchirella intermedia With, Danish Ingolf-Expedition, vol. 3, pt. 4, p. 124, fig.32 a-f ; pi. 4, fig. 4 a-c ; pi. 8, fig. 3, 1915.Stations 3799 ; 3829 ; 3878 ; 4721 ; 4757 ; 4926 ; 5120 ; 5180 ; 5185 ; 5190
;
5196; 5224; 5227; 5230; 5233; 5246; 5263; 5287; 5319; 5633. Identi-fied by Sars from 35 Monaco stations and listed at two stations in theCarnegie plankton but not found in the other lists. This species wasabundant at station 5319, but only one or two specimens were cap-tured at any of the other stations.EUCHIRELLA MAXIMA WolfendenPlate 23, Figures 338-339Euchirella maxima Wolfenden, Plankton studies, pt. 1, Copepoda, p. 18, pi. 6,figs. 9-11, 1905b.Station 5233. A single male and four females of this species werefound at this station. It appears in the Siboga and Monaco plank-tons but not in the others, and some of the Siboga specimens camefrom the Banda Sea not far from this Philippine station. Thelength of the Monaco male was not given, and the Siboga specimenswere females, but With (1915, p. 127) recorded a length of 6.70 mm.for his Danish Ingolf male. This Albatross male was considerablylarger and measured 7.60 mm., thus approaching the 8 mm. femalesmentioned by With.EUCHIRELLA MESSINENSIS (Claus)Undina messinensis Claus, Die freilebenden Copepoden, p. 187, pi. 31, figs. 8-18,1863.Stations 27; 3799; 3800; 4638; 4652; 4679; 4695; 4700; 4732; 4750;4926; 5120; 5185; 5224; 5227; 5263; 5319; 5320; 5437. Establishedby Claus upon specimens from Messina and placed in Dana's genusUndina; transferred to the present genus by Giesbrecht (1892, p. 232)
.
Identified by Sars from 7 of these Albatross stations and from 75Monaco stations ; found at 7 stations in the Siboga plankton in verti-cal tows from considerable depths and at 3 stations in the Carnegieplankton. EUCHIRELLA PULCHRA (Lubbock)Undina pulchra Lubbock, Trans. Ent. Soc. London, new ser., vol 4, p. 26, pi. 4,figs. 5-8 ; pi. 7, fig. 6, 1856.Stations 4664; 4673; 4681; 4699; 4700; 4707; 4721; 4722; 4732;4734; 4740; 4750; 5120; 5185; 5190; 5231. Identified by Sars from
226 BULLETIN 100, UNITED STATES NATIONAL MUSEUMthe first 12 of these Albatross stations and from 3 Monaco stations;present in all the plankton lists except the Wilkes, but nowherereported as abundant.EUCHIRELLA ROSTRATA Clans)Undina rostrata Clatjs, Die Copepoden-Fauna von Nizza, p. 11, pi. 1, fig. 2, 1866.Stations 16; 27; 2195; 2219; 4705; 5287; 5437. Identified by Sarsfrom 3 of these Albatross stations and from the 23 Monaco stations
;
found at five stations in the Carnegie plankton and listed in the Chal-lenger plankton under the name of Euchaeta hessei.EUCHIRELLA VENUSTA GiesbrechtPlate 9, Figures 95-97'Euchirella venusta Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 336, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 233,244, pi. 15, fig. 19 ; pi. 36, fig. 21, 1892.Stations 15; 26; 4587; 4594; 4598; 4605; 4638; 4655; 4657-4659;4661; 4663; 4665; 4671; 4676; 4679; 4689; 4693; 4721; 4722; 4734;4736. Identified by Sars from 20 of these Albatross stations andfrom 35 Monaco stations, the latter in his preliminary report (1905a,p. 4). In his final report (1925, p. 68), however, he transferred theMonaco specimens to With's species intermedia. In his examinationof the Albatross plankton Sars drew the figures here reproduced andlabeled them venusta, recognizing that they were different from inter-media. They do not correspond with the figures of intermedia pre-sented in his Monaco report but do agree fully with Giesbrecht'sfigures of venusta in the Naples report. This is especially true ofthe basipod of the fourth leg, as can be seen by comparing figure 97'here shown with plate 15, figure 19, of the Naples report. These Al-batross specimens show the same stout bipartite spine and scatteredspinules. Incidentally, these figures of Sars are the first full-length
"portraits" of this copepod. The genital segment of the female hasa projection with a semicircular sinus at the left posterior corner asan aid to identification.Genus FARRANIA Sars, 1920FARRANIA FKIGIDUS (Wolfenden)Plate 21, Figure 298Drepanopsis frigidus Wolfenden, Deutsche Siidpolar-Exped., 1901-1903, voL12, Zool., vol. 4, fasc. 4, p. 245, fig. 29 a-b, 1911.Farrania ollonga Sars, Bull. Inst. Oceanogr. Monaco, No. 377, p. 4, 1920; Res.camp. sci. Albert de Monaco, No. 69, p. 36, pi. 13, figs. 1-14, 1925.
COPEPODS GATHERED BY ALBATROSS?WILSON 227Station 5185. [A single female from this Philippine station hadbeen identified by Dr. Wilson as Drepanopsis frigidus, a species estab-lished by Wolfenden upon specimens captured in the Antarctic Oceanand the Tropical Atlantic. Though not appearing in any of theplankton lists, it was reported from the Antarctic by Farran in theTerra Nova Expedition. In his manuscript discussion of this speciesDr. Wilson remarked that Sars, in his Monaco report, had describedand figured a unique female copepod from the Bay of Biscay underthe name Farrania oblonga, new genus and species, which was a littlelarger than the dimensions given by Wolfenden but otherwise cor-responded in every essential characteristic and that hence the two areprobably synonymous. Neither Wolfenden nor Wilson was awarethat Drepanopsis had been preoccupied by Warren ( 1896, p. 144) , whogave this name to a genus of Lepidoptera in 1896. Dr. Wilson fig-ured the fifth legs of the Albatross specimen, remarking that they
"are identical with those shown by Wolfenden and Sars. The speciesis evidently a rare one and the male still remains unknown. Thepresent specimen extends the distribution of the species into the Pa-cific Ocean."?W. L. S. The fact that Farrania oblonga and Drep-anopsis frigidus were identical species had already been noticed bySewell (1929, p. 96). Sewell was also unaware that the name Drep-anopsis had been preoccupied.?M. S. W.]Genus FARRANULA (Blake MS.) Wilson, 1932Farran (1911, p. 283) created a new genus Corycella for the recep-tion of several minute species of Corycaeus. Bat the name Corycellahad been used for a genus of Protozoa by Leger in 1893. Dr. C. H.Blake substituted for it the name Farranida in some manuscript noteson the copepods and suggested its adoption. The new name was pub-lished in 1932 in U. S. Nat. Mus. Bull. 158, p. 594 (footnote) andis here adopted for the genus.FARRANULA CARINATA (Giesbrecht)Corycaeus carinatus Giesbeecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1,p. 481, 1S91 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 661, 675,pi. 51, figs. 20, 26, 1892.Stations 14; 39; 41; 42-44; 53; 55; 57-60; 62; 63; 64-67; 70; 7173; 79; 80; 82; 3797; 3829; 3834; 3901; 3932; 4009; 4037; 4190; 49525120; 5133; 5175; 5208; 5209; 5233; 5234; 5246; 5262; 5296; 53015320; 5338; 5340; 5348; 5382; 5386; 5387; 5399; 5434; 5437; 56515653 ; Iloilo Straits, Philippine Islands. Found also at 1 Monaco, 1Siboga, and 120 Carnegie stations, the last all at the surface or closeto it.843804?50 7
228 BULLETIN 100, UNITED STATES NATIONAL MUSEUMFARRANULA CONCINNA (Dana)Corycaeus concinnus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 39, 1849;United States Exploring Expedition, 1838-42 (Wilkes), vol. 14, pt. 2, Crus-tacea, p. 1225, 1853 ; pi. 86, fig. 7 a-b, 1855.Stations 3901 ; 4009 ; 4037 ; 5102 ; 5134 ; 5186 ; 5223 ; 5240 ; 5319 ; 5348
;
5386; 5388; 5646; Niuafu Island. Originally established by Danaupon specimens obtained near the Taumotu Archipelago and trans-ferred by Farran (1911, p. 283) to his new genus Corycella. Foundin the Siboga and Carnegie planktons.FARRANULA CURTA (Farran)Corycella curta Farran, Proc. Zool. Soc. London, 1911, p. 286, pi. 10, figs. 7-11
;
pi. 11, figs. 1-6.Stations 5301 ; 5320. Established by Farran upon specimens fromChristmas Island in the Indian Ocean and placed in his genus Cory-cella. Found only in the Carnegie plankton.FARRANULA GIBBULA (Giesbrecht)Corycaeus gibbulus Giesbrecht, Atti Accad. Lincei Rome, ser. 4, vol. 7, sem. 1,p. 481, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 661,675, pi. 51, figs. 22, 23, 1892.Stations 14; 15; 24; 30; 43^7; 49; 51-55; 57-66; 70; 71; 73; 803799; 3829; 3867; 3901; 4009; 4037; 4952; 5133; 5175; 5176; 51855186; 5196; 5223; 5226; 5228; 5246; 5262; 5263; 5299; 5301; 53205338; 5340; 5348; 5349; 5382; 5386; 5387; 5399; 5415; 5422; 54305437; 5507; 5530; 5646; 5647; 5651; Iloilo Straits, Philippine IslandsSabtan Island, Philippine Islands; Fiji Islands; Niuafu Island.This species was found in the Siboga and Carnegie planktons but notin the others and was occasionally quite abundant.FARRANULA GRACILIS (Dana)Corycaeus gracilis Dana, United States Exploring Expedition, 1838-42 (Wilkes),vol. 14, pt. 2, Crustacea, p. 1207, 1853 ; pi. 85, fig. 1 a-d, 1855.Stations 14; 30; 57-60; 62-68; 70; 71; 75; 80; 2806; 3789; 4756;5208; 5301; Fiji Islands. This is another of Dana's new Corycaeusspecies that Farran (1929, p. 296) afterward transferred to his newgenus Corycella. It was found in the Monaco and Carnegie planktonsbut not in any of the others and is usually found in limited numbers.FARRANULA ROSTRATA (Claus)Corycaeus rostratus Claus, Die freilebenden Copepoden, p. 157, pi. 28, fig. 5, 1863.Stations 34 ; 39 ; 41 ; 43 ; 46-68 ; 70 ; 71 ; 73 ; 75 ; 76 ; 79 ; 80 ; 82 ; 3705
;
3765; 3789; 3797; 3799; 3800; 3829; 3867; 3878; 3912; 3927; 3981;
COPEPODS GATHERED BY ALBATROSS?WILSON 2294009; 4010; 4011; 4037; 4190; 4588; 4756; 5133; 5175; 5176: 5209;5227; 5231; 5262; 5263; 5299; 5309; 5310; 5312; 5320; 5334;5340 ; 5382 ; 5386 ; 5399 ; 5415 ; 5424 ; 5430 ; 5437 ; 5530 ; 5601 ; GalapagosIslands; Niuafu Island; Fiji Islands; Friendly [Tonga] Islands.Present also in the Monaco and Carnegie planktons but not found inthe other lists and nowhere in any abundance.Genus GAETANUS Giesbrecht, 1888GAETANUS ANTARCTICUS WolfendenGaetanus antarcticus Wolfenden, Plankton studies, pt. 1, Copepoda, p. 7, 1905b.Station H.3798. Two specimens were identified by Sars from thisstation in the Marquesas Islands. It does not appear in any of theplankton lists here compared but was, however, reported by Brady(1918, p. 19) from the Antarctic Ocean and by Farran (1929, p. 223)from within the Antarctic Circle.GAETANUS ARMIGER GiesbrechtGaetanus armiger Giesbrecht, Atti Acead. Lincei, Rome, ser. 4, vol. 4, seni. 2,p. 335, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 219, 224,pi. 14, figs. 19, 22, 23, 26, 28, 29 ; pi. 36, figs. 2, 4, 5, 1892.Stations 49 ; 222 ; 3799 ; 4644 ; 4663 ; 4719 ; 4722 ; 4740 ; 4758. Identi-fied by Sars from 6 of these 9 Albatross stations and from 7 Monacostations and Tound also in the Siboga and Carnegie planktons. It isa rare species, and the few specimens that have been found were ratherwidely scattered.GAETANUS CURVISPINUS [Sars MS.] Wilson, new speciesPlate 10, Figures 108-113Stations 4700; 4703; 4719; 4721; 4722; 4806; 5185; 5287. Sixteenspecimens, including both sexes, were obtained at the first of the abovestations. At the other stations the tows were vertical, beginning at550-200 fathoms, and only one or two specimens were obtained at each.Female.?Metasome but little narrowed anteriorly and almostsquarely truncated posteriorly. Frontal spine small and curved down-ward close to the surface of the head ; no trace of separation betweenthe head and the first segment. Second, third, and fused fourth andfifth segments about the same length but diminishing slightly inwidth. Spines at the posterior corners of the metasome short, broad,and curved outward at right angles to the body axis, the tips turneddorsally. Urosome 4-segmented, a little more than a fourth as longas the metasome; genital segment longer than wide with nearlystraight sides. Abdomen 3-segmented, segments about the samelength and as wide as the genital segment. Caudal rami at the
230 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
corners of the anal segment, as wide as long and somewhat divergent,each with four stout setae of equal length.First antennae reaching three segments beyond the tips of the caudalrami and sparsely setose. The exopod of the second antenna is con-siderably longer than the endopod and is armed with rather longsetae. The exopod of the first leg is 2-segmented, of the other legs3-segmented ; the basipod of the fourth leg has a row of 11 or 12acicular spines, very similar to the fourth leg of armiger. Thesespines are slightly curved, diminish in length from the outside in-wardly, and are crowded closely together as seen in figure 110. Totallength 4.75 mm. Metasome 3.70 mm. long.Male.?Smaller than the female but showing the same proportions
;
the frontal horn is larger and stands out farther from the forehead(fig. 113) . On the contrary, the spines at the posterior corners of themetasome are smaller and scarcely curved at all. The urosome is5-segmented but no longer than the 4-segmented urosome of thefemale.Neither of the first antennae is geniculate; the second pair, themouth parts, and the first four pairs of legs are like those of thefemale, the exopod of the first \eg 2-segmented. In young males thefifth legs have the form shown in figure 111, the rami of both legs1-segmented with the exopods showing signs of segmentation. Thefifth legs of the adult males are shown in figure 112, the right leg alittle longer than the left. The second basipod of this leg is con-siderably swollen and the endopod is more than half as long as theproximal segment of the expod, narrowed basally and enlarged dis-tally into a bilobed knob. The basal segment of the exopod is one-halflonger than the second segment and twice as wide, with a knob onthe inner margin at the distal end. The second segment also has arounded knob at its distal end armed with a small spine; the endsegment is a curved and acute spine. The left endopod is short androdlike ; the exopod is 3-segmented, the segments diminishing distally,the end segment tipped with a slender spine. Total length 4.25 mm.Metasome 3.20 mm. long.Types.?U.S.N.M. No. 70736; station 4700, latitude 20?29' S., longi-tude 103?26' W., Easter to Galapagos Islands.Remarks.?This species resembles rohustus but is little more thanhalf as large, has a frontal spine, the first exopod is 2-segmented andthe first antennae reach beyond the caudal rami. Unlike kruppii,the spines at the posterior corners of the metasome are turned outwardand curved upward, and are considerably larger. The details of thefifth legs in the male also contribute to the specific distinction, espe-cially the endopod of the right leg.
COPEPODS GATHERED BY ALBATROSS?WILSON 231GAETANUS INERMIS SarsOaetanus inermis Sabs, Bull. Mus. Oceanogr. Monaco, No. 26, p. 12, 1905a ; Res.camp. sci. Albert de Monaco, No. 69, p. 64, pi. 19, figs. 3-5, 1925.Station 4664. A single female was identified by Sars from this sta-tion off the Peruvian coast in a vertical tow from a depth of 300fathoms. The original specimens came from the temperate Atlantic,and the only record since then is by Kose in the Monaco plankton fromanother station in the temperate Atlantic. Consequently, this Alba-tross female is the first specimen to be obtained from the Pacific.GAETANUS KRUPPII GiesbrechtGaetanus kruppii Giesbrecht, Mittheil. Zool. Stat. Neapel, vol. 16, p. 202, pi. 7,fig. 8 ; pi. 8, fig. 29, 1903.Stations 2; 2195; 3799; 4637; 4642; 4650; 4663^665; 4667; 4669;4679; 4681; 4687; 4707; 4711; 4715-4717; 4719; 4722; 4793; 5120;5185; 5287; H3789. Identified by Sars from 18 of these Albatrossstations and from 68 Monaco stations and found also in the Siboga andCarnegie planktons. Sars (Monaco plankton) designated it as oneof the most abundant bathypelagic copepods, and this statement re-ceives negative confirmation from the small number of specimens inthe Albatross plankton, which were mostly taken in surface tows.GAETANUS LATIFRONS SarsGaetanus latifrons Sabs, Bull. Mus. Oceanogr. Monaco, No. 26, p. 11, 1905a ; Res.camp. sci. Albert de Monaco, No. 69, p. 57, pi. 17, figs. 7-9, 1925.Stations 3799 ; 4663 ; 4683 ; 4685 ; 4707 ; 5120 ; 5185 ; 5227 ; 5287 ; 5437.This species was found at 1 Siboga, 1 Carnegie, and 52 Monaco sta-tions and is more abundant in the deeper tows.GAETANUS MICROCANTHUS [Sars MS.] Wilson, new speciesPlate 11, Figtjbes 114-116 ; Plate 19, Figtjee 246Stations 4664 ; 4667 ; 4669 ; 4679 ; 4681 ; 4719 ; 4722. Fifteen speci-mens, including both sexes, were obtained from these stations off thePeruvian coast and between Easter Island and the Galapagos Islands.Female.?Metasome short and thick-set, considerably narrowed atboth ends ; the forehead with a small and slender spine turned down-ward. The posterior corners of the last segment are broadly rounded,with a minute spine pointing backward. The urosome is less than athird as long as the metasome and is 4-segmented, the segments dimin-ishing in length backward. The genital segment is as wide as long,the sides nearly parallel, the ventral surface with a subrectangularprominence. The three abdominal segments increase slightly in widthdistally, and the posterior margin of the anal segment is incised at
232 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMits center. The caudal rami are as wide as long, each with five setae,the inner one much shorter than the others, which are about equal.The first antennae extend about three segments beyond the tips ofthe caudal rami and are sparsely setose. In the second antennae theexopod is a little longer than the endopod, and both are armed withvery long setae. The mouth parts are similar to those of other speciesbut more densely setose. The exopod of the first leg is 2-segmented,but the basal segment shows plainly that it is a fusion of two segmentsalthough it has but a single outer spine. The exopod of the second legis 3-segmented, the endopod 2-segmented, and both rami of the thirdand fourth legs are 3-segmented. The basipod of the fourth leg carriesa row of 15 aciculate spines on its posterior surface just inside the innermargin (fig. 246). These spines diminish in length from the insideoutwardly in a manner similar to those of curvispinus. Total length3.85 mm. Metasome 3.30 mm. long, 1.40 mm. wide.Male.?The body of the male is considerably smaller than that ofthe female but has the same general proportions. The frontal hornis much reduced in size and cannot be seen at all in dorsal view, and thespines at the posterior corners of the metasome are practically in-visible except under magnification, whence the specific name. Theexopod of the first leg is 3-segmented, the two basal segments beingcompletely separated, but the first segment still lacks an outer spine.In the fifth legs the second basipod and the two proximal segments ofthe right exopod are considerably swollen. The terminal exopodsegment is as long as the two basal segments combined and is stronglycurved near its base. The right endopod is very short and reachesonly to the center of the basal exopod segment. The middle segmentof the left exopod is longer than either of the others, which are aboutequal, the end segment being bilobed at its tip. The left endopod isthree-fourths as long as the first segment of the exopod and is acumi-nate. Total length 3.25 mm.Types.?U.S.N.M. No. 70402; station 4664, latitude 11?30' S., longi-tude 87?19' W., off Peru.Remarks.?This species resembles curvispinus in some details butdiffers widely in such details as the frontal horn and the spines at theposterior corners of the metasome. The fifth legs of the two malesalso differ in practically every essential detail.GAETANUS MILES GiesbrechtQaetanus miles Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sein. 2, p.335, 1S88 ; Fauna und Flora des Golfes von Neapel, Monogr. 19, pp. 219, 224,pi. 14, figs. 21, 24, 25, 27, 30 ; pi. 36, figs. 1, 3, 1892.Stations 2 ; 5-7 ; 15 ; 16 ; 18 ; 56 ; 4638 ; 4648 ; 4679 ; 4681 ; 4687 ; 4689
;
4695; 4699; 4700; 4707; 4717; 4719; 4721-4723; 4730; 4734; 4740;
COPEPODS GATHERED BY ALBATROSS?WILSON 2335120. This species was very widely distributed and was also found inthe Monaco, Siboga, and Carnegie lists but nowhere abundant. Thestatement made by Rose in his report on the surface copepods of theMonaco plankton (p. 19) , "Les especes du genre Gaetanus vivent ex-clusivement en profondeur, et ne sont jamais capturees en surface,meme la nuit," does not apply to this species. It is true of most of thespecies, but this one is sometimes captured at the surface even in thedaytime. GAETANUS MINOR FarranGaetanus minor Farran, Ann. Rep. Fisheries, Ireland, 1902-03, pt. 2, app. 2, p. 34,pi. 5, figs. 1-11, 1905.Stations 3982 ; 4678 ; 4687; 4701 ; 4719 ; 4722 ; 4734 ; 4753 ; 5120 ; 5186
;
5246 ; 5296 ; Marokau Island anchorage, Low Archipelago. Originallyfound in the Atlantic by Farran and reported in the Monaco plankton,this species appeared from the Pacific in the Siboga and Carnegieplanktons. GAETANUS PILEATUS FarranGaetanus pileatus Faekan, Report on the sea and inland fisheries of Ireland for1901, pt. 2, app. 7, p. 16, pi. 17, figs. 1-11, 1903.Stations 3800 ; 4665 ; 4679 ; 4683 ; 4685 ; 4687 ; 4700 ; 4705 ; 4707 ; 47084719 ; 4721 ; 4722 ; 4730 ; 4732 ; 4734 ; 4757 ; 5120 ; 5185 ; 5287. Identifiedby Sars at 15 of these Albatross and at 54 Monaco stations; present inthe /Siboga list as G. caudani.GAETANUS RECTICORNIS WolfendenPlate 23, Figures 340-341Gaetanus recticornis Wolfenden, Deutsche Siidpolar-Exped., 1901-03, vol. 12,Zool., vol. 4, fasc. 4, p. 228, fig. 16a-c ; pi. 26, fig. 13, 1911.Stations 76; 4646; 4655; 4664; 4665; 4676; 4679; 4681; 4717; 4719;4722. Originally established by Wolfenden upon specimens from thesouthern Atlantic and not appearing in any of the plankton lists.Hence these Albatross specimens identified by Sars from all but one ofthese stations constitute the first record from the Pacific. The malestill remains unknown.Genus GAIDIUS Giesbrecht, 1895GAIDIUS AFFINIS SarsGaidus afflnis Saks, Bull. Mus. Oceanogr. Monaco, No. 26, p. 9, 1905a ; Res. camp,sci. Albert de Monaco, No. 69, p. 47, pi. 14, figs. 9-13 ; pi. 15, figs. 14, 15, 1925.Stations 4667; 4668; 4669; 4707; 4753; 4760; 5120; 5185; GilbertIslands. Identified by Sars from the first three of these Albatrossstations and from 10 Monaco stations and found in limited numbers inthe Carnegie plankton.
234 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGAIDIUS BREVICAUDATUS (Sars)Ohiridiua brevicaudatus Sabs, Bull. Inst. Oceanogr. Monaco, No. 101, p. 7, 1907.Oaidius brevicaudatus Sars, R?s. camp. sci. Albert de Monaco, No. 69, p. 48, pi. 15,figs. 1-13, 1925.Stations 4700 ; 4707. Six females from these two stations were iden-tified by Sars as belonging to this species. They are the first to be re-ported since the species was originally established, and as all the previ-ous specimens Mere from the Atlantic they are the first recorded fromthe Pacific. GAIDIUS BREVISPINUS (Sars)Chiridius brcvispinus Sars, Norwegian North Polar Expedition, vol. 5, Crustacea,p. 68, pi. 19, 1900.Oaidius brevispinus Sars, Res. camp. sci. Albert de Monaco, No. 69, p. 4S, 1925.Stations 2195 ; 2859 ; 2861 ; 4638 ; 4711 ; 4715 ; 4721 ; 4758 ; 4760 ; 4793
;
4806; 5175; 5176; 5224; 5227; 5230; 5233; 5309; 5312; 5340; 5382.Identified by Sars from 6 of these Albatross stations and from 2Monaco stations and present in the Carnegie plankton. It has beenreported incidentally by several authors, but this is the first recordfrom the Pacific. GAIDIUS MINUTUS SarsOaidius minutus Sars, Bull. Inst. Oc?anogr. Monaco, No. 101, p. 10, 1907; Res.camp. sci. Albert de Monaco, No. 69, p. 49, pi. 14, figs. 14-18, 1925.Station 4707. Sars identified as belonging to this species four fe-males taken in a vertical tow from a depth of 300 fathoms at this sta-tion between Easter Island and the Galapagos. It was reported fromthe Indian Ocean by Sewell (1929, p, 100).GAIDIUS PUNGENS GiesbrechtOaidius pungcns Giesbrecht, Bull. Mus. Comp. Zool., vol. 25, No. 12, p. 248, pi.1, figs. 1-4, 1S95.Stations 2; 18; 474; 4574; 4691; 4740. Eight females were identi-fied by Sars from all but one of these stations as belonging to thepresent species. The original specimens upon which Giesbrecht es-tablished the species came from the northern Pacific. Easterly (1905,p. 146) has reported it off the coast of southern California, but it oc-curs in none of the plankton lists.GAIDIUS TENUISPINUS (Sars)Chiridius tenuispinus Sars, Norwegian North Polar Expedition, vol. 5, Crustacea,p. 67, pi. 18, 1900.Oaidius tenuispinus Sars, Ri?s. camp. sci. Albert de Monaco, No. 69, p. 46, 1925.Stations 42 ; 48 ; 2195 ; 3799 ; 4926 ; 5030 ; 5227 ; 5231 ; 5246 ; 5320 ; YesBay, Alaska. Identified by Sars from five Monaco stations and pres-
COPEPODS GATHERED BY ALBATROSS?WILSON 235
ent also in the Siboga and Carnegie planktons, but nowhere inabundance. Genus GAUSSIA Wolfenden, 1905GAUSSIA PRINCEPS (T. Scott)Plate 11, Figures 117-119Plcuromma princeps T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6, pt. 1,p. 42, pi. 3, figs. 8-20, 1894.Stations 2 ; 4 ; 4539 ; 4542 ; 4679 ; 4687 ; 4707 ; 4717 ; 4758. Identifiedby Sars from 6 of these Albatross stations but not found in any of theplankton reports. This is a very large copepod and easily recognizedby the peculiar asymmetry of the genital segment. Since figures afthe two sexes have appeared together only once the excellent drawingsmade by Sars are here reproduced. The color of this copepod is verydark, almost black, with the ventral surface of the genital segment areddish brown. [See remarks under Metridia atra.~\Genus HALOPTILUS Giesbrecht, 1898HALOPTILUS ACUTIFRONS (Giesbrecht)Hemicalanus acutifrons Giesbrecht, Fauna und Flora des Golfes von Neapel,monogr. 19, pp. 384, 398, pi. 3, fig. 11 ; pi. 27, figs. 4, 12, 18, 26 ; pi. 42, figs. 12,20, 1892.Stations 3834 ; 4634 ; 5240. Identified by Sars from the second ofthese 3 Albatross and from 22 Monaco stations and found at 15 stationsin the Carnegie plankton but not in the other lists.HALOPTILUS ANGUSTICEPS SarsHaloptilus angusticeps Sars, Bull. Inst. Oceanogr. Monaco, No. 101, p. 20, 1907
;
Res. camp. sci. Albert de Monaco, No. 69, p. 246, pi. 72, 1925.Stations 5120; 5190; 5233; 5240. Established by Sars upon speci-mens from the temperate Atlantic and the Mediterranean and fullydescribed and figured in the Monaco plankton. It was also reportedfrom the Pacific in the Carnegie plankton.HALOPTILUS BULLICEPS FarranHaloptilus bulliceps Farran, Journ. Linn. Soc. London, Zool., vol. 36, No. 243,p. 286, pi. 9, figs. 15, 16 ; pi. 10, figs. 1-3, 1926.Station 5246. [The discovery of a single female of this Biscayanspecies in the Philippines was recorded by Dr. Wilson in his list ofidentifications of the Albatross plankton but not referred to in hismanuscript text of this report. It is of interest to note that Farransecured six specimens in the course of 5 to 21 tows made at 100 fathomsin the Bay of Biscay, and one specimen in one of six hauls madebetween 200 and 100 fathoms. The unique Albatross specimen
236 BULLETIN 100, UNITED STATES NATIONAL MUSEUM(U.S.N.M. No. 73928) was taken in a vertical haul from 100 fathoms tothe surface.?W. L. S.]HALOPTILUS CHIERCHIAE (Giesbrccht)Eemicalanus cMerchiae Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem.1, p 813, 18S9 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 384,398, pi. 27, figs. 16, 17, 25 ; pi. 42, figs. 2, 27, 28, 1892.Stations 30 ; 4679 ; 4730. Identified by Sars from these 3 Albatrossand from 8 Monaco stations but not present in the other lists.HALOPTILUS FONS FarranEaloptilus fons Fabean, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 69, pi.7, figs. 11-15, 1908.Stations 4679 ; 4711 ; 5185. Farran 's original specimens came fromthe northern Atlantic west of Ireland, and it was found at one Monacostation in the same region. The present therefore is the first recordfrom the Pacific. HALOPTILUS LONGICORNIS (Clans)Eemicalanus longicornis Ceaus, Die freilebenden Copepoden, p. 179, pi. 29, fig. 1,1863.Stations 2; 4-7; 15; 18; 26; 3799; 4583; 4587; 4589; 4638; 4648;4663; 4664; 4667; 4678; 4681; 4685; 4687; 4689; 4691; 4700; 4705;4707 ; 4713 ; 4715 ; 4717 ; 4719 ; 4721 ; 4724 ; 4730 ; 4734 ; 4740 ; 4926 ; 5120
;
5185; 5190; 5240; 5246; 5320; 5437; Fiji Islands; Marshall Islands.As will be inferred from the station list, this is the most widely dis-tributed and abundant species of the genus and is found in all theplankton lists. HALOPTILUS MUCRONATUS (Clans)Eemicalanus mucronatus Claus, Die freilebenden Copepoden, p. 179, pi. 29, fig.2, 1863.Stations 27; 5134; 5319. This species appeared in the Monacoplankton, but in none of the other lists ; the original specimens camefrom Messina and it has since been reported by Farran (1929, p. 268)from near New Zealand. The females found at the above Albatrossstations carry the distribution far to the north of New Zealand intothe tropical Pacific. HALOPTILUS ORNATUS (Giesbrecht)Eemicalanus ornatus Giesbrecht, Fauna und Flora des Golfes von Neapel,monogr. 19, pp. 384, 399, pi. 27, figs. 1, 6, 7, 14, 15, 21, 24, 38 ; pi 42, figs 1,9, 17, 19, 22, 24, 1892.Stations 3799; 4605, 4634; 4637; 4638; 4655; 4659; 4663-4665;4667; 4671; 4679: 4681; 4700; 4703; 4707; 4721; 4926; 5120; 5185;
COPEPODS GATHERED BY ALBATROSS?WILSON 2375227 ; 5240 ; 5287 ; 5320 ; 5437 ; 5578. Identified by Sars at 17 of theseAlbatross and at 23 Monaco stations and found in the Siboga and Car-negie planktons, but everywhere in small numbers.HALOPTILUS OXYCEPHALUS (Gicsbrecht)Hemicalanus oxycephalus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5,sem. 1, p. 813, 1889 ; Fauna unci Flora des Golfes von Neapel, nionogr. 19, pp.384, 398, pi. 42, figs. 7, 16, 23, 1892.Station 3799. This species was originally obtained by Giesbrechtfrom the tropical Pacific not far from this Albatross station. It ap-peared also in the Monaco and Carnegie planktons but has always beenreported as rare. These Albatross specimens were darker in colorand not so transparent as the other species of the genus.HALOPTILUS SPINICEPS (Giesbrecht)Hemicalanus spiniceps Giesbrecht, Fauna und Flora des Golfes von Neapel,monogr. 19, pp. 384, 399, pi. 27, figs. 5, 20, 35, 40; pi. 42, figs. 3, 8, 10, 11, 21,25, 1892.Stations 6; 27; 3799; 3803; 4701; 4715; 4730; 5240; 5246; 5422; FijiIslands. Identified by Sars at six of these Albatross and at twoMonaco stations and present in the Siboga and Carnegie planktons.Originally established upon specimens from the western Mediterra-nean it has been reported from the temperate Atlantic and from thesouthern and tropical Pacific, but the number of specimens has alwaysbeen limited. HALOPTILUS TENUIS FarranHaloptilus tenuis Farran, Fisheries Ireland, Sci. Invest., 1906, pt. 2, p. 68, pi. 7,figs. 16-22, 1908.Station 3799. The original specimens were obtained from thenorthern Atlantic off the west coast of Ireland, and it was found at asingle Monaco station in the same locality. These Albatross speci-mens came from the Hawaiian Islands and are the first record from thePacific. HALOPTILUS VALIDUS SarsHaloptilus validus Sars, Bull. Inst. Oceanogr. Monaco, No. 377, p. 11, 1920; Res.camp. sci. Albert de Monaco, No. 69, p. 241, pi. 68, 1925.Station 4700. Identified by Sars from this Albatross station nearthe Galapagos Islands and from two Monaco stations but not presentin the other lists.Genus HARPACTICUS Milne Edwards, 1840HARPACTICUS CHELIFER (Miillcr)Cyclops chelifer Muller, Zoologiae Danicae prodromus, p. 200, 1776.Beaver Harbor, Vancouver Island, British Columbia ; Caldera Bayanchorage west coast of Mindanao, Philippine Islands. This
238 BULLETIN 100, UNITED STATES NATIONAL MUSEUMharpacticoid frequents the shallow waters along shore and is verywidely distributed. It is a bottom form and would not be capturedexcept at anchorages and in harbors and so does not appear in any ofthe plankton lists. Both of these Albatross localities are in thePacific, one far to the north and the other in the Philippine Islands.Genus HEMIRHABDUS Wolfenden, 1911HEMIRHABDUS GRIMALDII (Richard)Heterochaeta grimaldii Richakd, Bull. Soc. Zool. France, vol. 18, p. 151, 1893.Stations 4663; 4715; 4721; 4724; 5120; 5185. Five females and amale were identified by Sars from the first four, eastern Pacific, sta-tions. It was present at 17 Monaco stations but not in the other plank-tons. It was first reported from the Pacific area by Sewell (1913, p.354; 1932, p. 304). HEMIRHABDUS LATUS (Sars)Heterorliabdus latus Sabs, Bull. Mus. Oceanogr. Monaco, No. 40, p. 9, 1905b.HemirhaMus latus Saks, Res. camp. sci. Albert de Monaco, No. 69, p. 232, pi.64, 1925.Stations 4719 ; 4722. Identified by Sars from these two Albatrossstations between the Galapagos and Paumotu Islands and from fourMonaco stations. [It is suggested by Sewell (1932, p. 306) thatthis species is a synonym of H. truncatus (A. Scott).]Genus HETERAMALLA Sars, 1907HETERAMALLA DUBIA (T. Scott)Amallophora dubia T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6, pt. 1,p. 55, pi. 4, figs. 1-18, 1894.Station 3799. Scott's original specimens came from the Gulf ofGuinea and were placed in the genus Amallophora, but Sars createdthe new genus above for their reception and fully described them inthe Monaco plankton. The species was also present in the Sibogaplankton and has been reported from the Pacific in the Carnegielist. Genus HETEROPTILUS Sars, 1920HETEROPTILUS ACUTILOBUS (Sars)Pontoptilus acutilobus Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 21, 1905b.Hetcroptilus acutilolus Saks, Res. camp. sci. Albert de Monaco, No. 69, p. 326,pi. 117, 1925.
^
Station 4671. Identified by Sars from this single Albatross sta-tion off the coast of Peru and from 10 Monaco stations but not in theother planktons. In fact, this is the first record since the originaldiscovery and hence of course the first from the Pacific Ocean.
COPEPODS GATHERED BY ALBATROSS?WILSON 239HETEROPTILUS ATTENUATUS (Sars)Pontoptilus attenuatus Saks, Bull. Mus. Oceanogr. Monaco, No. 40, p. 20, 1905b.Heteroptilus attenuatus Sabs, Res. camp. sci. Albert de Monaco, No. 69, p. 324,pi. 116, 1925.Stations 4687 ; 4700 ; 4730. Identified by Sars from these Albatrossstations and from 7 Monaco stations but not appearing in any of theplankton lists. In fact, this is the first record since the original dis-covery and also the first from the Pacific Ocean, since the originalspecimens came from the temperate Atlantic.Genus HETERORHABDUS Giesbrecht, 1898HETERORHABDUS ABYSSALIS (Giesbrecht)Heterocliaeta abyssalis Giksbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5,sem. 1, p. 812, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19,pp. 373, 383, pi. 19, fig. 4 ; pi. 20, figs. 29, 30, 1892.Station 5120. Established by Giesbrecht and placed at first in thegenus Helerochaeta but afterward (1898, p. 116) transferred to hisnew genus above. In this last publication the position of the Atlanticstation at which his types were taken was erroneously given as "Atlant,Ocean (14? nordl. Br., 132? westl. L.) 4000 m. Tiefe." For 14? northof the Equator the parallel of 132? west longitude is located far outin the Pacific Ocean more than halfway from Mexico to the HawaiianIslands. The "4000 mi. Tiefe" is the depth at which his tow started,and, since the net was not closed but open all the way up, the speci-mens could have entered it at any depth above that level. Rose inhis paper on Monaco material gives two stations at which this specieswas found, adding (p. 35), "Cette form est exclusivement bathy-pelagique," yet at the first of the stations he mentioned the tow wasa surface one. The Carnegie secured only three specimens in a verti-cal tow from 1,000 meters, while the single Albatross male from sta-tion 5120 was captured in a vertical tow from 350 fathoms to thesurface. HETERORHABDUS CLAUSH (Giesbrecht)Plate 11, Figure 120Heterochaeta clausii Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem.1, p. 812, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 372,382, pi. 20, figs. 2, 28, 37, 38, 1892.Stations 3712; 5185; 5495. One male and three females were ob-tained at these three stations at depths in the case of the last tworanging from 600 and 550 fathoms to the surface, and at the surfacein the case of the first-named station. Three specimens were takenin the Siboga plankton in deep vertical tows but none in the other
240 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMplanktons. It has never been reported in any abundance and the factthat the few specimens obtained have generally been taken in deepvertical hauls would suggest that it usually stays some distance belowthe surface. The fifth leg of the female shown in figure 120 indicatesthe size of the long spine on the inner margin of the second exopodsegment, one of the distinctive characters of this species.HETERORHABDUS NORVEGICUS (Boeck)HeterocJiaeta norvegica Boeck, Forh. Vid. Selsk., Christiania, vol. 14, p. 40, 1872.Stations 2 ; 42 ; 470 ; 4687 ;4701 ; 4705 ; 4707 ; 5185 ; 5233 ; 5234. Iden-tified by Sars from 5 of these 10 Albatross stations and from 40Monaco stations and present also in the Carnegie plankton. All butthe first two of the Albatross stations are located in the tropical Paci-fic. The specific name suggests that this is a northern form and ex-tends even into the Arctic Ocean. Station 2 is located in the NorthAtlantic between the southern United States and Bermuda, and sta-tion 42 is north of the Aleutian Islands.HETERORHABDUS PAPILLIGER (Claus)Heterochaeta papilligera Claus, Die freilebenden Copepoden, p. 1S2, pi. 32, figs.10-13, 15, 1863.Stations 1 ; 2 ; 18 ; 49 ; 52 ; 65 ; 75 ; 3799 ; 3878 ; 4634; 4652 ; 4700 ; 4715
;
4719; 4721; 4722; 4725; 4730; 4753; 4759; 4760; 4785; 5120; 5129;5185 ; 5227 ; 5231 ; 5233 ; 5263 ; 5320 ; 5422 ; 5437 ; 5489. Identified bySars from 14 of these 32 Albatross stations and from 37 Monaco sta-tions and found also in the Siboga and Carnegie planktons.HETERORHABDUS ROBUSTUS FarranHeterorhabdus robustus Farkan, Fisheries Ireland, Sci. Invest, for 1906, pt. 2,p. 65, pi. 7, figs. 1-10, 1908.Stations 4574; 4634; 5185; 5231. Identified by Sars from the sec-ond of these stations and from 7 Monaco stations but not present inthe other planktons. Since all the previous specimens have been cap-tured in the Atlantic and Antarctic Oceans, this is the first record fromthe Pacific. HETERORHABDUS SPINIFRONS (Claus)Heterochaeta spinifrons Claus, Die freilebenden Copepoden, p. 182, pi. 32, figs.8, 9, 14, 16, 1863.Stations 36; 65; 71; 80; 470; 4574; 4646; 4655; 4671; 4685; 4701;4721; 4722; 4730; 5129; 5134; 5185; 5231; 5233; 5246; 5263; 5320;5437 ; Fiji Islands. Identified by Sars from 7 of these Albatross sta-tions and from 37 Monaco stations and found in the Challenger,Siboga, and Carnegie planktons.
COPEPODS GATHERED BY ALBATROSS?WILSON 241Genus HETEROSTYLITES Sars, 1920HETEROSTYLITES LONGICORNIS (Giesbrccht)Eeterochaeta longicornis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5,sem. 1, p. 812, 1SS9 ; Fauna und Flora des Golfes von Neapel, monogr. 19,pp. 373, 383, pi. 20, figs. 14, 21, 25, 26 ; pi. 39, fig. 44, 1892.Stations 7 ; 15 ; 16 ; 2236 ; 4580 ; 4583 ; 4638 ; 4646 ; 4652 ; 4659 ; 4663
;
466Y ; 4673 ; 4700 ; 4707 ; 4715 ; 4719 ; 4722 ; 5120 ; 5129 ; 5185. Identi-fied by Sars from 14 of these Albatross stations and from 13 Monacostations; also present in the Siboga and Carnegie planktons. TheSiboga specimens were all taken in deep vertical hauls starting from750 to 1,500 meters below the surface, and the Carnegie specimens,except for one specimen taken in a 50-meter tow and another in a ver-lical haul from 1,000 meters, were all captured in 100-meter horizontaltows. HETEROSTYLITES MAJOR (F. Dahl)Eeterochaeta major F. Dahl, Verh. deutsch. zool. Ges., Miinchen, vol. 4, p. 79,1894b.Station 5185. Two females were obtained at this station betweenPanay and Negros Islands in the Philippines. Sars found it at fivestations in the Monaco plankton and gave a complete description ofthe female in his report. Farran (1929, p. 267) reported a male anda female from the Antarctic in a vertical haul from 1,750 meters.Although this was the first male to be found, he gave no descriptionor figures but simply said that it showed the usual sexual differencesfrom the female. Genus ISOCHAETA Giesbrecht, 1889ISOCHAETA OVALIS GiesbrechtIsochaeta ovalis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1,p. 812, 18S9 ; Fauna und Flora des Golfes von Neapel, monogr. 19, p. 367, pi.29, figs. 15-17 ; pi. 38, figs. 33, 34, 1892.Station 4721. Identified by Sars from this station between theGalapagos and Paumotu Islands and not appearing in any of theplankton lists. Indeed, this is the first and only record since its orig-inal discovery in the tropical Pacific and it would seem to be a veryrare species. The tow here was a vertical haul from 300 fathoms.Genus LABIDOCERA Lubbock, 1853LABIDOCERA ACUTA (Dana)Plate 11, Figures 121, 122 ; Plate 12, Figure 123Pontella acuta Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 30, 1849.Pontellina acuta Dana, United States Exploring Expedition, 1838-42 (Wilkes),vol. 14, pt. 2, Crustacea, p. 1150, 1853, pi. 80, fig. 12 a-c, 1855.
242 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 16; 27; 48; 3412; 3878; 3921; 4010; 4190; 4583; 45854588; 4592; 4600; 4605; 4615; 4619; 4638; 4640; 4644; 4952; 51025105; 5110; 5133; 5134; 5175; 5177; 5179; 5180; 5186; 5190; 51915196 ; 5209 ; 5211 ; 5223-5225 ; 5226 ; 5228-5232 ; 5262 ; 5263 ; 5299 ; 53125319; 5340; 5342; 5348; 5382; 5386; 5415; 5434; 5488; 5530; 55535611; 5672; Iloilo Straits; Nasugbu Bay; Port Binanga, Luzon; andCaldera Bay anchorage, west coast of Mindanao, Philippine Islands.For some reason this species was not included in the Monaco plankton,although present in all the other. The numbers at some of the sta-tions run into the hundreds.LABIDOCERA ACUTIFRONS (Dana)Plate 11, Figures 124, 125Pontella acutifrons Dana, Proc. Anier. Acad. Arts and Sci., vol. 2, p. 30, 1849.Pontellina acutifrons Dana, United States Exploring Expedition, 1838-1842(Wilkes), vol. 14, pt. 2, Crustacea, p. 1149, 1853; pi. 80, fig. 11 a-h, 1855.Stations 3; 15; 16; 2195; 2806; 3694; 3791; 3799; 3822; 3829; 38673878; 3901; 3927; 3932; 3980; 3981; 4009; 4010; 4011; 4037; 41904580; 4590; 4615; 4619; 4640; 4644; 4652; 4659; 4661; 4663; 46644667; 4669; 4671; 4673; 4714; 4952; 5105; 5155; 5186; 5262; 53385340 ; 5358 ; 5460 ; 5489 ; 5530 ; 5601 ; Sabtan Island, Philippine Islands.Identified by Sars at 15 of these Albatross stations and at 2 Monacostations ; present in all the other planktons except the Siboga.LABIDOCERA AGILIS (Dana)Plate 23, Figures 342, 343Pontella agilis Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 30, 1849.Pontellina agilis Dana, United States Exploring Expedition, 1838-42 (Wilkes),vol. 14, pt. 2, Crustacea, p. 1147, 1853 ; pi. 80, fig. 10 a-e, 1855.Stations 3; 27. In the Wilkes plankton Dana established a newspecies that he named Pontellina agilis. The type specimens werecaptured in the tropical Atlantic north and south of the Equator.This species has not been reported by any subsequent observer but wastransferred by Giesbrecht (1898, p. 138) to the present genus andconsidered of doubtful validity. Five females obtained in surfacetow, three near the Virgin Islands in the Lesser Antilles, correspondso completely with Dana's description and figures as to leave no doubtof their identity.Female.?Metasome elliptical, nearly three times as long as wide;head broadly rounded anteriorly and distinctly separated from the firstsegment, without lateral hooks. First thoracic segment much longerthan the second, third and fourth about the same length, fifth veryshort, Spines at the posterior corners also short, triangular, acute,and removed inward a little from the corner.
COPEPODS GATHERED BY ALBATROSS?WILSON 243Urosome, including the caudal rami, about a fourth as long as themetasome and 4-segmented, the genital segment the longest and theanal segment the shortest, all the same width. Caudal rami longerthan the anal segment, twice as long as wide and slightly curved likeparenthesis marks.First antennae just reaching the spines at the corners of the meta-some and quite slender ; exopod of second antenna two-thirds as longas the endopod. The basal segment of the endopod is three times aslong as the end segment and the latter has 11 setae. The first fourpairs of legs have 3-segmented exopods and 2-segmented endopods.The fifth pair of legs is shown in figure 343, the left leg a little longerthan the right. The left exopod is four times as long as the endopod,with two minute spines at the tip and another still smaller on the outermargin below the center. The right exopod is only three and a halftimes as long as the endopod but otherwise like the left. The endopodsare equal in size, bluntly rounded at their tips, and entirely unarmed.Total length 3.15 mm., greatest width nearly 1 mm.Neotype female.?-U.S.N.,M. No. 74118.Remarks.?These copepods are the same size as Dana's specimens,both metasome and urosome are similarly divided, and the ventraleye beneath the rostrum is just as prominent and bright red. Danaadds, "Color blue, especially anteriorly, yellowish posterly," but ofcourse the color has long since disappeared. Thus another of Dana'spioneer copepod species after an interval of about a hundred years hasbeen rediscovered and validated.LABIDOCERA ALBATROSSI, new speciesPlate 23, Figures 344, 345Station 3878. Four females were found in a surface tow at thisstation south of Lanai, one of the Hawaiian Islands.Female.?Metasome elliptical, two and a third times as long aswide, and narrowed a little at each end. Head separated from thefirst segment and without lateral hooks ; dorsal eyes small and widelyseparated, ventral eye also small and inconspicuous. Fourth and fifthsegments fused with rounded posterior corners, the triangular spinesnot at the corners but on the posterior margin and depressed beneaththe dorsal surface. Urosome perfectly symmetrical, one-fourth as wideand, excluding the caudal rami, less than one-sixth as long as the meta-some. It is 3-segmented, the segments diminishing in length back-ward, the first two the same width, the anal segment a trifle widerand obliquely truncated at the corners for the attachment of the caudalrami. The latter are widely separated and curved like parenthesismarks.843804?50 8
244 BULLETIN 100, UNITED STATES NATIONAL MUSEUMFirst antennae reaching tlie abdomen and rather slender ; the exopodof the second antenna is a little shorter than the endopod. Fifthlegs shown in figure 345, rather stout and asymmetrical, the left longerthan the right. The left exopod is three and a half, the right exopodonly three, times as long as the respective endopods, which are thesame length. Each exopod is tipped with three spines, the middle onethe longest, the outer one much larger than the inner. The endopodsore fingerlike, unarmed, and bluntly rounded at their tips. Totallength 3.50 mm. Metasome 2.80 mm. long, 1.10 mm. wide.Types.?U.S.NM. No. 74119; south of Lanai Island, HawaiianIslands.Remarks.?This species may be recognized by the stout aspect andperfect symmetry of the entire body, the lack of lateral hooks on thehead, the depression of the spines at the posterior end of the meta-some, and the shape and wide separation of the caudal rami. Thetwo depressions on each lateral margin of the head are alsocharacteristic. LABIDOCERA DETRUNCATA (Dana)Plate 16, Figures 192, 193Pontella detruncata Dana, Proc. Anier. Acad. Arts and Sci., vol. 2, p. 29, 1849.Pontcllina detruncata Dana, United States Exploring Expedition, 183S-1842(Wilkes), vol. 14, pt. 2, Crustacea, p. 1143, 1853 ; pi. SO, fig. 7 a-i, 1855.Stations 5 ; 9 ; 12 ; 14 ; 16 ; 18 ; 27 ; 30-32 ; 36 ; 3799 ; 3822 ; 3867 ; 3878
;
3901; 3980; 4009; 4010; 4011; 4190; 4611; 4615; 4617; 4619; 4635;4644; 4700; 4720-4723; 4725; 4728; 4731; 4735; 4738; 4740; 4741;4743 ; 4952 ; 5155 ; 5211 ; 5262 ; 5299 ; 5319 ; 5530 ; Iloilo Straits, and Sab-tan Island, Philippine Islands. This is the most widely distributedspecies of the genus in the Albatross plankton and was equally abun-dant in the Carnegie plankton. Brady reported it as moderatelyabundant in the Challenger plankton, but in the Siboga plankton Scottsaid it appeared to be rare, and it was not present at all in the Monacoplankton. On the other hand, it sometimes occurs by the hundreds in asurface tow where all the conditions are favorable. Hence, althoughwidely distributed, it must be regarded as erratic in its dispersion andquite susceptible to unfavorable influences.LABIDOCERA EUCHAETA GiesbrechtPlate 25, Figures 364, 364'Labidocera euchaeta Giesbeecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2,p. 27, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 446,459, pi. 23, fig. 31 ; pi. 41, figs. 7, 36, 1892.Stations 16 ; 31 ; 3901 ; 4037 ; 5175 ; 5180 ; 5415. Established by Gies-brecht upon female specimens from Formosa Strait ; it does not appear
COPEPODS GATHERED BY ALBATROSS?WILSON 245in any of the plankton lists. However, Dr. E. B. S. Sewell (1912,pp. 339-344) found development stages of both sexes in the Bay ofBengal, which he described and figured. The right fifth leg of anAlbatross male is shown in figure 364. This corresponds well withthe one shown on Sewell 's plate 18, figure 8, "Stage 1." [Dimorph. 1],later called "forma major" (Sewell 1932, p. 361). The fifth legs ofthe females are also like the figure given by Giesbrecht of his typefemale. LABIDOCERA INSOLITA, new speciesPlate 24, Figures 346-350Caldera Bay anchorage, west coast of Mindanao, Philippine Islands.One hundred specimens of a new Ldbidocera species, including bothsexes, were taken at this anchorage in a net set in the tide current atthe gangway of the steamer and a large catch was made.Female.?Metasome elliptical, nearly three times as long as wide,considerably narrowed anteriorly but not so much posteriorly. Headseparated from the first segment, without lateral hooks and more thanhalf the length of the metasome. Fifth segment very short androunded at the posterior corners, with small acute spines, both seg-ment and spines perfectly symmetrical. Urosome also perfectly sym-metrical and 3-segmented. Genital segment as long as the abdomenand caudal rami combined, its sides a little convex. First abdominalsegment twice as long as the anal segment, the latter incised at thecenter of its posterior margin. Caudal rami nearly as long as theentire abdomen and curved like parenthesis marks.First antennae reaching the posterior end of the genital segment;exopod of second antenna a little shorter than the endopod, with sixsetae. The bilobed tip of the endopod is armed with 12 setae, 6 oneach of the lobes. The fifth legs are long, slender, and curved; theexopod is twice as long as the endopod and also twice the length ofthe basipod segment to which it is attached. It is tipped with threespines, the middle one much longer than the other two, but has nospines on the outer margin. The endopod is simple and unarmed,but the tip is contracted into a slender, fingerlike process. The wholeendopod is almost as long as the second basipod. Total length 2.54to 3 mm. Greatest width 0.70 mm.Male.?Metasome similar to that of the female but not narrowed somuch anteriorly, making the head a little wider. Fifth segment withrounded corners and small acute spines like those of the female, thewhole symmetrical. Urosome 5-segmented, segments diminishing con-siderably in length backward but only a trifle in width ; like the female,it shows no asymmetry. Caudal rami as long as the last two abdominal
246 BULLETIN 100, UNITED STATES NATIONAL MUSEUMsegments combined, nearly three times as long as wide, a little divergentand straight rather than curved.First antennae reaching the caudal rami, the right one geniculateand forming a grasping organ similar to the one found in the malesof lubbochii and brunescens. The terminal portion beyond the hingeis made up of four segments, the two proximal ones each about aslong as the two terminal ones combined. The proximal one next tothe hinge has a serrated ridge running along the lateral margin andextending beyond the distal end. The segment on the other side ofthe hinge has a spoon-shaped process with a serrated edge, whichcan be swung around parallel to the ridge on the terminal portion,the two forming a strong grasping organ.The right fifth leg of the male is stoutly developed, the basal segmenttriangular, the second segment ellipsoidal, the chela with a stronghand, a curved spoon-shaped finger, and a short curved thumb. Theleft leg is as long as the right and biramose, the exopod 2-segmented,the end segment with scattered spines on its surface and a long, slenderterminal process. The endopod is also 2-segmented, the basal segmentas wide as the basal segment of the exopod but not so long. The endsegment is a curved cone covered with coiled corrugations. Totallength 2.30 to 2.45 mm.Types.?U.S.N.M. No. 74120 ; Caldera Bay anchorage, west coast ofMindanao, Philippine Islands.Remarks.?At first sight this species bears a close resemblance toCzerniavsky's Ldbidocera hrunescens, but closer examination revealsmany differences. It is one-half larger and has no asymmetry in thefifth segment and its posterior spines or in the urosome, and thedetails of the fifth legs of both sexes, especially those of the female,are quite different, The stout and well-developed endopod of the leftfifth leg of the male is quite uncommon and suggests the specific name.LABIDOCERA KR0YERI (Brady)Pontella kr0yeri Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 93, pi. 39, figs. 1-19, 1883.Stations 4588; 4611; 4952; 5128; 5133; 5134; 5228; 5342; 5553;Iloilo Straits, Philippine Islands. This species was more widely dis-tributed than detruncata in the Siboga plankton, was reported in theChallenger plankton, but did not appear at all in the Monaco orCarnegie planktons.LABIDOCERA LAEVIDENTATA (Brady)Plate 24, Figures 351-355Pontella laevidentata Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 93, pi. 38, figs. 1-6, 1883.
COPEPODS GATHERED BY ALBATROSS?WILSON 247Station 5102. Established by Brady in the Challenger planktonupon a single male specimen taken near Sibago Island in the Philip-pines and given a meager description. Both sexes were obtained inlarge numbers in the Siboga plankton south of Celebes Island andfully described by Scott. Two males and two females were obtainedat this Albatross station southeast of Luzon Island. In these femalesthe caudal rami are not asymmetrical as in the Siboga specimens, andthe endopods of the fifth legs are relatively shorter.LABIDOCERA LUBBOCKII GiesbrechtLabidocera lubbockii Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sera. 2,p. 26, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 446,459, pi. 23, figs. 3, 32, 39 ; pi. 25, fig. 27 ; pi. 41, figs. 4, 32, 34, 1892.Stations 4667; 4926; 5530; Sabtan Island Anchorage, PhilippineIslands. Established by Giesbrecht upon specimens obtained at themouth of the Guayaquil Elver, Ecuador, a little north of the first ofthe above Albatross stations. Identified by Sars in the Albatrossplankton from the first of these stations; not found in any of thelists. LABIDOCERA MINUTA GiesbrechtPlate 24, Figures 356-359Labidocera minutum Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2,p. 27, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 446,459, pi. 23, figs. 16, 35, 36 ; pi. 25, fig. 32 ; pi. 41, figs. 8, 15, 16, 35, 1892.Stations 27; 30; 31; 4037; 4952; 5129; 5133; 5175; 5185; 5186;5208; 5223; 5225; 5228; 5231; 5262; 5267; 5299; 5301; 5319; 5340;5386 ; 5422 ; 5489 ; 5553. Established by Giesbrecht upon specimenscaptured near Hong Kong and appearing only in the Siboga plankton.Since Giesbrecht's figures are the only ones thus far published, othersare here added to show certain characteristics. In a dorsal view ofthe urosome the anal segment can be easily overlooked, but in a lateralor ventral view it always stands out clearly. In the lateral view(fig. 356) it appears wedge-shaped, the thick end of the wedge ven-tral, and all three urosome segments are seen to be protuberant ven-trally. In the fifth legs of the male the chela of the right leg in theseAlbatross specimens showed two processes on the inner surface ofthe hand. Between the two processes at the tip of the left leg aretwo or three spines visible only when one is looking through the spacebetween the processes.
248 BULLETIN 100, UNITED STATES NATIONAL MUSEUMLABIDOCERA NERII (Kr^yer)Plate 16, Figure 194 ; Plate 24, Figure 360JPoniia nerii Kr^yer, Naturh. Tidsskr. Kj0benhavn, ser. 2, vol. 2, p. 600, pi. 6,figs. 12-16, 1849.Stations 13 ; 15. Identified by Sars from station 13, off the coastof southern Argentina, and station 15, off northern Chile. Found inthe Monaco and Carnegie plankton lists. In the fifth legs of the fe-male the exopod is six times as long as the endopod and is tippedwith three acute spines. The chela of the right fifth leg of the malehas two long processes at the proximal corner and the finger closesdown between them. LABIDOCERA ORSINII GiesbrechtPlate 24, Figures 361-362Labidocera orsinii Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2,p. 27, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 446,460, pi. 25, fig. 35 ; pi. 41, figs. 17, 33, 1892.Station 5225 ; Sabtan Island Anchorage, Philippine Islands. Origi-nally established by Giesbrecht upon female specimens from the RedSea, it does not appear in any of the plankton lists. All the specimensobtained at these two Albatross localities were also females; the malestill remains unknown. In the fifth legs the distinctive charactersare the bluntly rounded endopods notched at their tips and the smallknobs at the distal corners of the second basipods outside of the exo-pods. In the lateral view of the urosome the first and second segmentsof the abdomen are about equal in length, while the anal segmentis longer than the other two combined, but only half as highdorsoventrally. LABIDOCERA PAVO GiesbrechtPlate 25, Figure 363Labidocera pavo Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2, p. 27,1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 446, 460, pi. 25,fig. 34 ; pi. 41, figs. 18, 38, 1892.Stations 5105; 5225; Port Binanga, Luzon, Philippine Islands.Established by Giesbrecht upon female specimens from the Red Sea,it does not appear in any of the plankton lists. It was reported from14 Ceylon stations by Thompson and Scott (1903, p. 251), and adultsand immature stages were described and figured by Sewell (1932, p.365). The species may be recognized at once by the dorsal aspect ofthe urosome as shown in figure 363. The genital segment has a lateraloutgrowth on the right side and a ventrolateral process showing onthe left side. The abdomen is 1-segmented, and the caudal rami arekidney-shaped and attached diagonally to the sides of the abdomen.
COPEPODS GATHERED BY ALBATROSS?WILSON 249The six setae on each ramus all curve inward and form a prominentheart-shaped terminus to the urosome.LABIDOCERA TENUICAUDA, new speciesPlate 25, Figures 365-369Station 5415 ; Iloilo Straits, Philippine Islands. Six specimens, in-cluding both sexes, were found in the plankton at these two localitiesin the Philippines.Female.?Metasome narrowed anteriorly and widened posteriorly ;head almost squarely truncated in front with a slight protuberanceover the base of the rostrum and without lateral hooks. Fourth andfifth segments separated with small spines on the posterior marginsof the latter. Urosome symmetrical, less than a fifth as long and abouta sixth as wide as the metasome and made up of three segments. Gen-ital segment as long as the two abdominal segments combined, thelatter equal in length but the anal segment widened. Caudal ramitwice as long as wide, the inner margins nearly straight, the outer mar-gins strongly convex.First antennae slender, reaching the posterior end of the metasome
;
second antennae with the exopod considerably shorter than the endo-pod. Fifth exopods two and a half times as long as the endopods,each with three outer spines, one at the tip and a minute one on theinner margin at the base of the terminal spine ; endopods with simple,pointed, unarmed spines.Male.?Metasome elongate-elliptical, narrowed at both ends. Theposterior corners of the fifth segment are produced into slender spines,which are curved inward and reach the center of the second urosomesegment. Urosome, excluding the caudal rami, one-fifth as long asthe metasome and 4-segmented, the segments all about the same lengthand width. Caudal rami longer than the last two abdominal segmentscombined, six times as long as wide and parallel.Grasping (right) antenna, shown in figure 367, with a terminal por-tion made up of four segments, the segment next to the hinge as longas the other three combined and toothed along its inner margin. Thesegment on the other side of the hinge carries a long inner curved proc-ess, toothed on its inner margin. In the fifth legs the hand of the chelaon the right leg is stout and has a small thumblike process at its proxi-mal corner. The movable finger is hollowed on its inner side with twospines at the basal end of the hollow ; it reaches beyond the base of thehand where it is curved inward and tipped with two curved setae. Thesecond basipod of the left leg has the rudiment of an endopod at itsinner distal corner. The two segments of the exopod are set with hairsen their inner surfaces and the end segment is tipped with spines.Total length 1.95 mm. Metasome 1.50 mm. long; 0.65 mm. wide.
250 BULLETIN 100, UNITED STATES NATIONAL MUSEUMTypes.?-U.S.N.M. No. 74121; station 5415, latitude 10?07'50" N.,longitude 123?57' E., between Cebu and Bohol, Philippine Islands.Remarks.?The principal characters of this species are the squatappearance of the metasome and the symmetry of the urosome in thefemale, the curved spines at the posterior corners of the fifth segment,and the elongated caudal rami in the male.LABIDOCERA WOLLASTONI (Lubbock)Pontella wollastoni Lubbock, Ann. Mag. Nat. Hist., ser. 2, vol. 20, p. 406, pi. 11,figs. 9-11, 18, 1857.Stations 31 ; 3878 ; 4010 ; 4700. Identified by Sars from the first andlast of these Albatross stations and from a single Monaco station, andpresent in the Carnegie list. The Albatross specimens were taken insurface tows around the Galapagos and Hawaiian Islands and in avertical tow from 300 fathoms to the surface at station 4700. Theyconstitute the first record from the Pacific Ocean.Genus LEPEOPHTHEIRUS Nordmann, 1832LEPEOPHTHEIRUS PARVTVENTRIS WilsonLepeophtheinis parvwentris Wilson, Proc. U. S. Nat. Mus., vol. 28, p. 635, pi. 23,figs. 275-284, 1905 .Station 3226. A single female was captured at this station in BeringSea while swimming freely at the surface. It is a parasitic form in-festing the Pacific cod and halibut.Genus LOPHOTHRIX Giesbrecht, 1895LOPHOTHRIX FRONTALIS GiesbrechtLophothrix frontalis Giesbrecht, Bull. Mus. Comp. Zool., vol. 25, No. 12, p. 254,pi. 2, figs. 1-5, 9-12, 1895.Stations 1 ; 9 ; 18 ; 26 ; 27 ; 2859 ; 4574 ; 4664 ; 4665 ; 4667 ; 4681 ; 4687
;
4700; 4703; 4705; 4715-4717: 4721; 4722; 4740; 5120; 5185; 5287;5451; Fiji Islands. Identified by Sars from 19 of these Albatrossstations and from 40 Monaco stations ; present also in the Siboga andCarnegie planktons. LOPHOTHRIX HUMILIFRONS SarsPlate 25, Figures 370-373Lophothri.r humilifrons Sars, Bull. Mus. Oceanogr. Monaco, No. 26, p. 22, 1005a;Res. camp. sci. Albert de Monaco, No. 69, p. 106, pi. 46, figs. 15-22, 1925.Station 5451. Five males were obtained at this station off the eastcoast of Luzon in the Philippines. They are different from any malesalready described in the genus and are referred to the above specieswhose males have hitherto remained unknown.
COPEPODS GATHERED BY ALBATROSS?WILSON 251Female (Sars' description).?Metasome oblong, about equally nar-rowed at each end. Head fused with the first segment and obtuselyrounded in front with no trace of a crest. Fifth segment entirelyfused with the fourth, the posterior corners narrowly rounded inlateral view. Urosome about a fourth as long and wide as the meta-some and 4-segmented; genital segment as wide as long and longerthan the first two abdominal segments combined; caudal rami aswide as long and well separated. First antennae reaching the analsegment; second antennae and mouth parts like those of frontalis.Fifth legs also similar, but the first two segments are fringed withhairs and the end segment is shorter.Male.?Metasome elongate-elliptical, nearly three times as long aswide and narrowed but little at the ends. Head fused with the firstsegment, the two more than half the entire length; frontal marginbroadly rounded with no trace of a crest. Fourth and fifth segmentscompletely fused, the posterior corners narrowly rounded in side view.Urosome one-third as long and one-fourth as wide as the metasomeand 5-segmented, the basal and anal segments quite short, the threemiddle segments much longer and of equal length. Caudal rami sub-circular in dorsal view and well separated.First antennae reaching the caudal rami ; exopod of the second an-tennae considerably longer than the endopod. Mouth parts and firstfour pairs of legs like those of the female; fifth legs somewhat re-sembling those of frontalis but differing in details. The endopod ofthe right leg is wider at the base and more acuminate at the tip andreaches the center of the second segment of the exopod. The firstand second segments of the exopod are enlarged a little at their distalends and the third segment is curved and laminate. In the leftleg the basipods are elongated, the endopod is rudimentary and 1-segmented while the exopod is 2-segmented and hooked at its tip.Total length 5.75 to 6 mm.Allotype male.?U.S.N.M. No. 74122; station 5451, latitude13?22 ,22,/ N., longitude 124?00 /48 ,/ E., off Bataan, Philippine Islands.Remarks.?Although there were no females with these males, thelatter possess so many of the characteristics of the humilifrons fe-males as to leave no doubt that they are the other sex of the species.A single specimen was reported in the Carnegie plankton.LOPHOTHRIX LATIPES (T. Scott)Plate 25, Figures 374-376Scolecitlirix latipes T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6, pt. 1.p. 52, pi. 3, figs. 21-23, pi. 5, figs. 40-43, 1894.Station 5120. Originally established and briefly described by T.
252 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMScott as a new species of Scolecithrix from the Gulf of Guinea, thisspecies was fully described and figured by Sars in the Monaco plank-ton, but it does not appear in the other plankton lists. Both sexeswere found at the above Albatross station and are the first recordfrom the Pacific Ocean. All previous specimens have been females,and the male is here described for the first time.Female.?As described by Sars. Scott stated that the inner ter-minal spine of the fifth leg "is longer than the others and is finelyserrate on the outer margin." Sars made no statement with refer-ence to this spine, but his figure does not show any serration. TheseAlbatross specimens showed no serration, but rather a fringe of shortplumes.Male.?Body short and thick-set and quite differently proportionedfrom that of the female. Metasome elongate-oval but comprisingonly 62 percent of the entire length, while in the female it is 83 per-cent. The posterior corners are smoothly rounded and slightly over-lap the genital segment. The forehead also is evenly rounded with notrace of a crest, and neither of the first antennae is geniculate. Theurosome is only a fourth as wide as the metasome but is considerablymore than half as long and 4-segmented. The genital segment is notquite so long as the first two abdominal segments combined but is alittle wider. The anal segment is so short as to be easily overlookedand appears to be telescoped into the end of the segment in front of it.The antennae, mouth parts, and first four pairs of legs are like thoseof the female ; the fifth legs are of the same general pattern as those offrontalis but differ in detail. The proximal segment of the rightexopod is much widened where it joins the basipod and carries arounded knob at its distal end on the inner margin. The rightendopod is distinctly segmented, the two segments about equal inlength. The left endopod is longer than the exopod, each being 3-segmented, and the terminal endopod segment is short and shapedmuch like the blossom of a calla lily. Total length 3 mm. Metasome1.85 mm. long.Allotype male.?U.S.N.M. No. 74123; station 5120, latitude13?45'30" N., long. 120?30'15" E., west of Lubang, Philippine Islands.Remarks.?The discovery of the male furnishes convincing evi-dence that Sars was right in transferring the species from the genusScolecithrix, where it was placed by Scott, to the present genus. Thefifth legs of the female described by Wolfenden (1911, p. 253) as anew species, Scolecithrix acutus, correspond so closely to these oflatipes that the male must be found before the validity of his speciescan be admitted.
COPEPODS GATHERED BY ALBATROSS?WILSON 253LOPHOTHRIX SARSI, new speciesPlate 12, Figures 126-136Station 4687. Four females from this station were identified bySars as a new species. He drew figures of all the appendages but sug-gested no name for the new species. Accordingly, the species isnamed for Sars and his figures are reproduced as a basis fordescription.Female.?Metasome elongate-elliptical, nearly three times as longas wide and narrowed but little at each end. Forehead angular indorsal view, with a sharp apex tipped with a thin median crest pro-jecting dorsally and anteriorly. The anterior surface of the head isprolonged ventrally into a wide and flattened rostrum inclined back-ward between the bases of the first antennae. This rostrum has con-vex sides and is narrowed distally with a reentrant tip holding twosmall juxtaposed spines (fig. 128). The fourth and fifth segmentsare separated, and the posterior corners of the latter are carried backbeyond the center of the genital segment. The urosome is 4-seg-mented and less than one-sixth as long as the metasome ; the genitalsegment is as wide as long and somewhat flask-shaped, the ventralsurface scarcely protuberant. The three abdominal segments areabout the same width and length, a little narrower than the genitalsegment and more than twice as wide as long. The caudal rami arewider than long, and each is armed with four setae as long as the wholeurosome.The first antennae reach the caudal rami and are rather sparselyarmed with short setae. The two proximal segments of the exopod ofthe second antennae are considerably thickened, and the end segmentis longer than the second segment. The chewing blade of the mandi-ble has five inner teeth acutely pointed and three outer teeth muchlarger and bidentate at their tips, and a curved seta at the inner angle.The second maxilla has four inner lobes, the proximal one with foursetae, the others with three each, and the terminal segments carry thecharacteristic cauliflower appendages. The maxilliped is 7-seg-mented, the segments armed with the following number of setaebeginning at the base 6:5:3:3:2:2:3.In the first leg the endopod just reaches the distal end of the secondexopod segment. In the second and third legs there are no spines onthe ventral surface of the exopod, and those on the endopod arearranged as in figures 134 and 135. The fifth legs are 3-segmented,and the end segment carries four setae, one, the longest, at the innerdistal corner, two terminal, and one at the center of the outer margin,all four nearly parallel. Total length 3.75 mm. Metasome 3.33 mm.long, 1.15 mm. wide.
254 BULLETIN 100, UNITED STATES NATIONAL MUSEUMType.?U.S.'NM. No. 70737; station 4687, latitude 22?50' S., longi-tude 97?30' W., Peru to Easter Island.Remarks.?The first distinguishing character of this representativeof the genus is its small size ; the only species that approaches it inthis respect is L. latipes, all the others being much larger. Anothercharacter is the jointing of the setae on the swimming legs shown infigures 134 and 135. Again the spines on the end segment of the fifthlegs are approximately parallel whereas in the other species theyradiate in different directions.Genus LUBBOCKIA Claus, 1863LUBBOCKIA ACULEATA GiesbrechtLubbockia acnleata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1,p. 477, 1891; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 606,611, pi. 48, figs. 3, 9, 11, 13, 16 20, 1892.Stations 2 ; 41 ; 44 ; 47 ; 70 ; 3834 ; 5185. Established by Giesbrechtupon specimens from the Pacific far west of the Galapagos Islands andfound at 5 Stboga and 18 Carnegie stations.LUBBOCKIA BREVIS FarranLubbockia brevis Farran, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 96,pi. 11, figs. 1-9, 1908.Station 5437 or 5530. [In the original list of species identified,by stations, this species was recorded as occurring at station 5437, butthe only specimens, two females (U.S.N.M. No. 73970) , received fromDr. Wilson, are labeled by him as from station 5530. It cannot nowbe determined whether the species occurred at both these Philippinestations or whether one of the two may be in error. The species hasbeen entered with a question mark under each of these two stationsin the lists of species by stations.?W. L. S.]LUBBOCKIA SQUILLIMANA ClansLubbockia squillimana Claus, Die freilebenden Copepoden, p. 164, pi. 25, figs. 1-5,1863.Stations 65; 3834; 5185; 5320; 5422; 5437; 5530; Sabtan Island,Philippine Islands; Fiji Islands; Niuafu Island. The original speci-mens upon which this species was established came from Messina, butit is present in all the subsequent plankton lists and appears to bevery widely distributed although nowhere at all abundant.Genus LUCICUTIA Giesbrecht, 1898LUCICUTIA ATLANTICA WolfendenLuoicutia atlantica Wolfenden, Journ. Mar. Biol. Assoc, new ser., vol. 7, No. 1,p. 121, 1904.
COPEPODS GATHERED BY ALBATROSS?WILSON 255Stations 4574; 4638; 4687; 5320; 5437. Identified by Sars fromthe first 3 of these Albatross stations and from 17 Monaco stationsbut not present in the other planktons.LUCICUTIA CLAUSII (Giesbrecht)Leuokartia clausii Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1,p. S12, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 359,367, pi. 19, figs. 5, 6, 12-14, 24, 26, 27 ; pi. 38, fig. 37, 1892.Stations 3799 ; 5320. Identified by Sars from a single Monaco stationand found also in the Siboga and Carnegie planktons.LUCICUTIA CURTA Farranhucicutia curta Faeean, Ann. Rept. Fisheries Ireland, 1902-03, pt. 2, app. 2, p. 44,pi. 12, figs. 1-7, 1905.Stations 2195; 3799; 4634; 5102; 5120; 5129; 5185; 5208; 5319-Farran's original specimens came from the northern Atlantic west ofIreland, but he afterward (1929, p. 264) reported it from the Ant-arctic south of the Pacific. Most of these Albatross specimens arefrom the northern Pacific around the Hawaiian and PhilippineIslands. Reported only in the Carnegie plankton.LUCICUTIA FLAVICORNIS (Claus)Leuckartia flavicornis Claus, Die freilebenden Copepoden, p. 1S3, pi. 32, figs. 1-7,1S63.Stations 1; 2; 3; 5; 9; 11; 14; 24; 32; 36; 44; 52; 55; 57; 59-61;63-65 ; 67 ; 71 ; 78 ; 173 ; 222 ; 3799 ; 3834 ; 3901 ; 3932 ; 4634 ; 4637 ; 4638
;
4657; 4664; 4679; 4681; 4700; 4703; 4705-4707; 4711; 4717; 4722;4740; 4753; 4926; 5120; 5129; 5185; 5190; 5228-5231; 5233; 5240;5246; 5263; 5320; 5422; 5437; 5530; Fiji Islands. This is one of themost widely distributed species of the genus and is found in ail theplankton lists except the Wilkes and Challenger.LUCICUTIA GEMINA FarranLucicutia gcmina Faeean, Journ. Linn. Soc. London, Zool., vol. 36, No. 243, p. 275,pi. 9, figs. 4-8, 1926.Stations 5120 ; 5233. Established by Farran upon specimens takenin the Bay of Biscay and later reported by the same author (1929,p. 263) off New Zealand. The species has not been reported in anyof the plankton lists and is evidently limited in its distribution.LUCICUTIA GRANDIS (Giesbrecht)Leuckartia grandis Giesbbecht, Bull. Mus. Comp. Zool., vol. 25, No. 12, p. 258,pi. 4, fig. 4, 1895.Stations 1; 2195; 4G48; 4650; 4652; 4655; 4661; 4663; 4664; 4665;4667; 4676; 4679; 4687; 4707; 4715; 4717; 4719; 4721; 4722; 5185.
256 BULLETIN 100, UNITED STATES NATIONAL MUSEUMIdentified by Sars from 19 of these Albatross and from 47 Monacostations; present also in the Carnegie plankton.LUCICUTIA LONGICORNIS (Giesbrecht)Leuckartia longicornis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1,1). S13, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 359,367, pi. 19, figs. 7, 30 ; pi. 38, fig. 39, 1892.Stations 76; 3799; 4701; 4717; 5102; 5120; 5185; 5227; 5228; 5232;5233 ; 5287 ; 5292 ; 5415. This species does not appear in any of theplankton lists except the Carnegie and has been reported otherwisebut once since its original discovery.LUCICUTIA LONGISERRATA (Giesbrecht)Leuckartia longiserrata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5,sem. 1, p. 813, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19,pp. 359, 307, pi. 19, figs. 1, 18, 25, 28 ; pi. 3S, fig. 36, 1892.Station 5319. Originally established by Giesbrecht upon speci-mens from the tropical Pacific north of the Marshall Islands, it ap-peared in the Siboga and Monaco planktons, in the latter of whichit was fully described by Sars.LUCICUTIA LUCIDA FarranLucicutia lucida Farran, Fisheries Ireland, Sci. Invest., for 1906, pt. 2, p. 62,pi. 3, fig. 22 ; pi. 6, figs. 16-20, 1908.Stations 24; 4644; 5120; 5129; 5185 ; 5190; 5233; 5301; 5320. Estab-lished by Farran upon specimens from the northern Atlantic west ofIreland, it was found also in the Monaco plankton at a single stationin the northern Mediterranean but did not appear elsewhere. This isthe first record from the Pacific Ocean, where it appears to be moreabundant. LUCICUTIA MACROCERA SarsLucicutia macrocera Sars, Bull. Inst. Oceanogr. Monaco, No. 377, p. 10, 1920;Res. camp. sci. Albert de Monaco, No. 69, p. 213, pi. 57, figs. 12-15, 1925.Stations 5120 ; 5185. Identified by Sars from a single Monaco sta-tion but not found in the other planktons. These are the first speci-mens taken since the original discovery and the first from the PacificOcean. LUCICUTIA OVALIS WolfendenLucicutia ovalis Wolfenden, Deutsche Siidpolar-Esped., 1901-1903, vol. 12,Zool., vol. 4, fasc. 4, p. 319, figs. 61 a-c, pi. 35, fig. 6, 1911.Stations 2195; 5120; 5129; 5186; 5223; 5437. Established by Wol-fenden upon female specimens from the northern Atlantic and notappearing in any of the plankton lists. It was reported by Farran(1929, p. 263), however, from off New Zealand, where the male wasalso found, and by Sewell (1932, p. 290) from the Indian Ocean.
COPEPODS GATHERED BY ALBATROSS?WILSON 257LUCICUTIA SIMULANS SarsLucicutia simulans Saks, Bull. Inst. OcSanogr. Monaco, No. 377, p. 11, 1920 ; Rvs.camp. sci. Albert de Monaco, No. 69, p. 216, pi. 58, figs. 9-13, 1925.Station 5437. Established by Sars in the Monaco report uponspecimens of both sexes from the western Mediterranean and notappearing in the other lists. According^, this is the first recordsince the original discovery, as well as the first from the Pacific Ocean.LUCICUTIA TENUICAUDA SarsLucicutia tenuicauda Sars, Bull. Inst. Oceanogr. Monaco, No. 101, p. 18, 1907
;
R6s. camp. sci. Albert de Monaco, No. 69, p. 212, pi. 57, ligs, 7-11, 1925.Stations 1 ; 49 ; 3799 ; 3800 ; 3803 ; 3834 ; 4010 ; 4011 ; 5120 ; 5185 ; 5227
;
5231; 5233; 5240; 5246; 5263; 5437; 5451. These Albatross stationsconstitute the first Pacific records for the species, which otherwise isknown only from two Monaco stations in the temperate Atlantic,whence Sars obtained his original material.Genus MACANDREWELLA A. Scott, 1909MACANDREWELLA AGASSIZI, new speciesPiate 14, Figures 160-172Found oil Funafuti, Ellice Islands, and identified by Sars as anew species of Macandreioella but not specifically named.Female.?Metasome elliptical, narrowed at both ends; head withthe frontal lens as usual ; rostrum composed of a bifurcate base tippedwith slender filaments. Head fused with the first segment, but thefourth and fifth segments completely separated, the posterior cor-ners of the latter armed with a stout curved spine, which reaches backto the center of the genital segment.Urosome one-fourth as long as the metasome and 4-segmented ; gen-ital segment somewhat asymmetrical, a little more protuberant on theleft side and extending farther back on the right side. The dorsal sur-face is strongly elevated along the midline and near the posteriorend is armed with a stout spine which extends back over the firstabdominal segment at an angle of 45 degrees. This spine is conspicu-ous in both dorsal and lateral views and easily identifies the species.The three abdominal segments diminish in length distally, and thesecond is narrower than either of the others. The caudal rami arewider than long and divergent, each with four setae, the second innerone on the left ramus elongated.The first antennae reach the posterior margin of the genital seg-ment ; the exopod of the second antenna is not quite twice as long asthe endopod, the end segment one-half longer than the second segment.Chewing blade of the mandible narrow with three small inner teeth
258 BULLETIN 100, UNITED STATES NATIONAL MUSEUMand a larger outer one and a curved seta at the outer corner. Secondmaxilla rather stout, with the inner lobes well developed, each tippedwith two long and one short setae, with an extra long one on theproximal lobe. The sensory organs on the two end segments arerather poorly developed. The basal segment of the maxilliped is butlittle stouter than the second segment, the fourth segment is as longas the three end segments combined, and the setae of the entire ap-pendage are short and weak. Basal segment of first exopod withoutan inner seta ; endopods of second, third, and fourth legs and exopodsof the latter with scattered spines as shown in figures 166-168. Fifthlegs present and 2-segmented, the proximal segment short, the distalsegment tipped with a huge curved spine five times as long as the seg-ment itself with a row of isolated teeth along its outer distal margin.Total length 3 mm. Metasome 1 mm. wide.Male.?A little smaller than the female, the fourth and fifth seg-ments similarly separated, but the latter without spines. Urosome5-segmented, the genital segment entirely symmetrical, its dorsal sur-face not raised and without a spine. Antennae, mouth parts, andfirst four pairs of legs like those of the female, the fifth legs havingthe general form found in this genus but differing in detail. Thesecond basipod of the right leg is swollen more than the first and theexopod is 3-segmented, the first segment with a knob at the innerdistal corner. The second segment has a sickle-shaped process on itsinner margin at the base and projects distally beyond the joint withthe third segment. Consequently the third segment is apparentlyarticulated to the inner margin of the second segment instead of toits end. This third segment is bent at right angles near its centerand the terminal clawlike part is turned backward and overlaps thesickle process on the base of the second segment. The right endopodis 1-segmented, with a single knob near the center of the outer margin.The two left basipod segments are cylindrical and slender; the twocombined reach the tip of the first exopod segment of the right leg.The left exopod is 3-segmented, the proximal segment with an angularprocess on its inner margin, the two distal segments somewhat widened.The end segment has a rounded process and a soft pointed filamenton its inner surface ; its rounded tip is covered with hairs. The leftendopod is 1-segmented and nearly as long as the exopod, with twoangular processes on its outer margin and three minute teeth at itstip. Total length 2.95 mm.Types.?U.S.N.M. No. 70738 ; off Funafuti, Ellice Islands.Remarks.?As characters favoring the placement of this new speciesin the present genus where Sars placed it, there are the presence ofa frontal lens on the head, the absence of a frontal crest, the separationof the fourth and fifth segments, the structure of the rostrum, and
COPEPODS GATHERED BY ALBATROSS?WILSON 259the general form of the fifth legs of the male. On the other hand,the fifth legs of the female are very similar to Scottocalanus.MACANDREWELLA CHELIPES (Giesbrecht)Plate 13, Figures 137-147Scolecithrix chelipes Giesbrecht, Zool. Jahrb., Abt. Syst., vol. 9, p. 321, pi. 5, figs.16-22, 1896.Stations 4732; Fiji Islands; Ellice Islands. Established by Gies-brecht upon a single male taken in the Red Sea and placed in the genusScolecithrix. Scott made a new genus Macandrewella in the Sibogaplankton for the reception of a new species, joanae, of which hedescribed both sexes. The male was so similar to the one portrayedby Giesbrecht that he transferred the latter to his new genus. Al-though the species has been reported since its original discovery, thefemale has never been mentioned. Sars, however, found both sexesin this Albatross plankton and made detailed drawings of the femaleappendages together with those of the male. They are here repro-duced and made the basis of a full description.Female.?Metasome elliptical, two and a half times as long as wide
;
head fused with the first segment, fourth and fifth segments com-pletely separated, the latter produced backward and armed with asmall curved spine which reaches the center of the genital segment.Rostrum a small flattened lamina bisected for half its length, thebranches tipped with soft filaments as long as the lamina. Urosome4-segmented, genital segment a trifle wider than long and with nearlystraight sides ; abdomen a little narrower, its three segments diminish-ing in length posteriorly. Caudal rami wider than long, each withfour setae, the second inner one on each ramus lengthened.First antennae slender and reaching the abdomen; exopod of thesecond antenna almost twice as long as the endopod, the end segmentone-half longer than the second segment. Chewing blade of the man-dible abruptly narrowed distally, with two squarely truncated teeth,palp with short rami. Second maxilla with five well-developed innerlobes and two kinds of sensory organs on the end segments. Basalsegment of the maxilliped twice the width of the second segment, allthe setae short and weak. Basal segment of the first exopod withoutan inner seta ; second and third endopods and third exopod with smallspines on their surfaces; fifth legs entirely lacking. Total length3.50 mm. Metasome 3 mm. long, 1.30 mm. wide.Male.?Smaller than the female but with the same general bodyform ; the first antennae reach beyond the center of the abdomen ; theexopod of the second antenna is only one-fourth longer than the endo-pod. The mouth parts and the first four pairs of legs are like those843804?50 9
260 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
of the female. The second basipod of the right fifth leg is swollen toabout three times the diameter of the first basipod. The first exopodsegment has an angular swelling on the outer margin at the center anda small knob at the inner distal corner. The second segment has acurved process at the base and a smaller straight process near thecenter of the inner margin. The third segment is sickle-shaped, witha knob on the convex margin, the point of the sickle overlapping thebase of the second segment. The right endopod is slender and reachesthe distal end of the second segment of the exopod. The two basipodsegments of the left leg are about equal in length and quite slender,without knobs or swellings. The left exopod is 3-segmented, the twoproximal segments equal in length, the end segment much shorter andclaw-shaped. The left endopod is 1-segmented, nearly as long as theexopod, and dentate on its inner margin. Total length 3 mm.Allotype female.?-U.S.N.M. No. 67242; Fiji Islands.Remarks.?In the preceding species the fifth legs of the female con-sisted of a short basal segment and a very long and stout spine. In thetype species joanae, described by Scott in the Siboga plankton, thefifth leg of the female consisted of a short basal segment tipped withtwo still shorter spines. Here and in the following species the fifthlegs are entirely lacking in the female. These differences coupled withthose shown in the details of the structure of the fifth legs of the maleafford a ready means of identifying the four species thus far knownin the genus. MACANDREWELLA SEWELLI FarranPlate 13, Figures 14S-159Macandrewella setcelli Farran, Great Barrier Reef Exped., 1928-29, Sci. Repts.,Copepoda, vol. 5, No. 3, p. 106, fig. 17, 1936.Stations 4734; 5553. Eight specimens, including both sexes, wereobtained in a vertical tow from a depth of 300 fathoms at the first ofthese stations between the Galapagos and Paumotu Islands. Sarslabeled this as a new species and made the detailed drawings of itwhich are here reproduced. But he had been anticipated by Farran{op. cit.) who had described a female from deep water outside theGreat Barrier Reef of Australia, with which the Albatross specimensprove identical. Hence they must bear the name given by Farran. AsFarran had only the one sex and gave neither description nor figures ofany appendage. Sars' figures have been used to supplement those pre-sented by Farran and to furnish a basis for the description of the male.Female.?Metasome elliptical, a little more than twice as long aswide ; head fused with the first segment and somewhat narrowed ; fifthsegment separated from the fourth and symmetrical. Urosome 4-seg-
COPEPODS GATHERED BY ALBATROSS?WILSON 261
mented, a little more than one-fifth as long as the metasome ; genitalsegment asymmetrical, with a lobe at the right posterior corner over-lapping the first abdominal segment. When seen in lateral view thislobe also projects dorsally and aids greatly in identification. Thethree abdominal segments diminish in both length and width back-ward ; the caudal rami are wider than long and divergent.The first antennae reach the posterior end of the genital segment;Farran makes this same statement in his text, but in his figure showinga lateral view of the female the antenna reaches the middle of thecaudal ramus. The exopod of the second antenna is nearly twice aslong as the endopod, and the end segment is one-half longer than thesecond segment. The chewing blade of the mandible is narroweddistally and is armed with a large 2-pointed tooth at the outer corner,four smaller acute teeth along the edge and a curved seta at the innercorner. The five inner lobes of the second maxilla differ somewhat insize and the two kinds of sensory organs on the end segments are largeand well developed. The basal segment of the maxilliped is twice aswide but not so long as the second segment. Both rami of the secondand third legs have spines on the surface, those on the exopods minute,those on the endopods larger but fewer in number. The fifth legs areentirely lacking as in the preceding species. Total length 3.50 to 3.70mm. Metasome 3.30 mm. long, 1.33 mm. wide.Male.?Usual form similar to that of the female, but the urosome is5-segmented and the genital segment is symmetrical without anydorsal process. The antennae, mouth parts, and first four pairs oflegs correspond to those of the female, and the fifth legs differ indetail from those of other species. The second basipod of the rightleg is swollen to twice the diameter of the first basipod and is fully aswide as long. The first exopod segment extends considerably beyondthe articulation with the second segment in the form of a curved fingerlike process (fig. 158). The outer side of the second segment isarticulated with the inner side of the first segment at the base of thefinger process. The proximal end of the second segment is enlargedinto a trilobed knob, which extends behind the articulation. The endsegment is bent at right angles near its center with a long process,toothed at its tip, on the outer angle of the bend. The right endopodextends beyond the second joint of the exopod, is curved and blunt atthe tip and has a sharp process on the inner margin near the base andanother toward the tip. The left endopod is shorter than the exopod,laminate and truncate at its tip, with a sharp spine at the center of themargin and a row of coarse teeth distal to the spine. The left exopodis also laminate, the second segment enlarged at its distal end with anouter setose process. Total length 3.25 mm.
262 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMAllotype male.?U.S.N.M. No. 70442 ; station 5553, latitude 5?51' N.,longitude 120?46'30" E., off Jolo, Philippine Islands.Remarks.?The protuberance on the dorsal surface of the genitalsegment in the female and the complicated structure of the male fifthlegs are identifying characters.Genus MACROSETELLA A. Scott, 1909MACROSETELLA GRACILIS (Dana)Setella gracilis Dana, Proc. Amer. Acad. Arts and Sci., vol. 1, p. 154, 1847 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1198, 1853 ; pi. 84, fig. 3 a-g, 1855.Stations 19-21; 33; 43; 64; 65; 71; 73; 3799; 3800; 3878; 39804037; 4952; 5102; 5120; 5133; 5180; 5186; 5208; 5223; 5227; 52305263; 5301; 5308; 5312; 5320; 5334; 5340; 5349; 5358; 5386; 53995414; 5422; 5424; 5430; 5431; 5437; 5488; 5489; 5530; 5601; 56465647; 5651 ; Sabtan Island, and Iloilo Straits, Philippine Islands ; FijiIslands ; Niuafu Island. This species occurs in all the plankton lists,is pelagic in its habits, and is widely distributed in the Tropics.Genus MECYNOCERA I. C. Thompson, 1888MECYNOCERA CLAUSI I. C. ThompsonMccynocera clausi I. C. Thompson, Journ. Linn. Soc. London, vol. 20 (1890), p.150, pi. 11, 1888.Stations 2; 3; 7; 9; 11-14; 16; 19-21; 25-27; 29; 32; 33; 35; 36;39; 41; 44; 52; 54; 62-65; 75; 76; 79; 3799; 3800; 4010; 4190; 4681;4700; 4701; 4705; 4707; 4715; 5120; 5240; 5320; 5437; Fiji Islands.Identified by Sars from 25 of these Albatross stations with four figuresand from 6 Monaco stations and present in the Siboga and Carnegieplanktons. It is found in all the larger oceans.Genus MEGACALANUS Wolfenden, 1904MEGACALANUS LONGICORNIS (Sars)Macrocalanus longicornis Sars, Bull Mus. Oceanogr. Monaco, No. 26, p. 7, 1905a.Megacalanus longicornis Sars, Res. camp. sci. Albert de Monaco, No. 69, p. 11, pis.1, 2, 1925.Stations 65; 4652; 4655; 4661; 4663-4665; 4667; 4669; 4671-4673;4675; 4676; 4679; 4681; 4683; 4700; 4707; 4711; 4715; 5120; 5185;5287 ; 5320 ; 5495 ; 5553 ; H. 3789. Identified by Sars from 18 of theseAlbatross stations and 44 Monaco stations; found also in the Sibogaand Carnegie planktons. It is widely distributed, especially in theTropics. MEGACALANUS PRINCEPS (Brady)Calanus princeps Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23, Cope-poda, p. 36, pi. 4, figs. 3-7, 1883.
COPEPODS GATHERED BY ALBATROSS?WILSON 263Stations 2859; 3799; 4684; 4687; 4759; 4760; 5185; 5437. Againidentified by Sars at 4 of these Albatross stations and 4 Monaco sta-tions, found also in the Sihoga and Carnegie planktons.Genus MESORHABDUS Sars, 1905MESORHABDUS ANGUSTUS. SarsMesorhabdus angustus Sars, Bull. Inst. Oceanogr. Monaco, No. 101, p. 19, 1907;Res. camp. sci. Albert de Monaco, No. 69, p. 236, pi. 66, figs. 14-20, 1925.Stations 4800 ; 5185. A single female was found at station 4800 inthe Sea of Okhotsk. The species also appeared in the AlbatrossPhilippine plankton collections at station 5185, between Panay andNegros. It was first reported from the Pacific area by Sewell (1932,p. 308 ) . The male is still unknown.Genus METRIDIA Boeck, 1865METRIDIA ATRA EsterlyPlate 25, Figures 377, 378Metridia atra Esterly, Univ. California Publ. Zool., vol. 3, No. 5, p. 70, pi. 9,figs. 15, 16 ; pi. 11, figs. 39, 40 ; pi. 13, fig. 78 ; pi. 14, fig. 95, 1906.Station 5287. Originally established by Esterly upon specimens ofboth sexes taken in plankton hauls off the coast of southern Californiaand not found in any of the plankton lists. Esterly obtained threemales and a female, but most of the characteristics he mentions arefrom the males. To supplement these a figure is here given of the fifthlegs of the female (U. S. N. M. No. 74124) , which are 4-segmented, withthree setae on the end segment, the longest one without plumes. Inthe endopod of the second legs also the spinal armature of the basalsegment is peculiar. Although these Albatross specimens have been inpreservative for 30 years, they still show plainly the black pigmentover the entire surface of the metasome which was cited by Esterly asa prominent specific character. [Sewell (1932, p. 270) has given adescription of the development stages of Gaussia princeps which leadshim to conclude that the form reported by other authors as Metridiaatra is actually stage V of G. princeps. Figure 378 as here drawn byDr. Wilson corresponds closely to figure 93e of Sewell. Dr. Wilson'sstatement above that the fifth legs of the female are 4-segmented shouldbe construed as including what other authors consider as the basalsegment. This is the system he used in referring to the segmentsof uniramose legs in the Woods Hole report.?M. S. W.]METRIDIA BOECKII GiesbrechtMetridia boeckii Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2, p. 24,18S9 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 340, 346, pi. 32,fig. 8; pi. 33, figs. 8, 19, 31, 37, 1892.
264 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStation 4678. Originally established by Giesbrecht upon femalespecimens from Porto Lagunas and reported by Esterly (1905, p. 178)from the coast of southern California. Identified by Sars from thisstation off the coast of Peru and from four Monaco stations ; presentin the Siboga plankton.METRIDIA BREVICAUDA GiesbrechtMctridia brevicauda Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sera.2, p. 24, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 340,346, pi. 33, figs. 5, 10, 11, 14, 21, 26, 32, 1892.Stations 35 ; 36 ; 2236 ; 4664 ; 4756. Giesbrecht's original specimenscame from the tropical Pacific and were taken in vertical hauls 1,000to 4,000 meters in depth. Those taken at six Siboga stations were alsocaptured in vertical hauls from considerable depths, whereas the Alba-tross specimens from the first three stations resulted from surfacetows ; the other two tows were vertical ones from 300 and 75 fathoms,respectively. It was reported also in the Carnegie plankton.METRIDIA CURTICAUDA GiesbrechtMetridia curticauda Giesbbecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem.2, p. 24, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 340,346, pi. 32, fig. 7 ; pi. 33, figs. 4, 15, 33, 1892.Stations 4583 ; 4585 ; 4646 ; 4648 ; 4652 ; 4664 ; 4667 ; 4671 ; 4673 ; 4700
;
4707; 4721; 4722; 4740; 5129. Identified by Sars from 11 of thesetropical Pacific stations. In the Carnegie plankton it was found onlyin the Atlantic. It has also been reported from the Antarctic Oceanby Farran (1929, p. 259) in vertical hauls from considerable depths,and from the Indian Ocean by Sewell (1932, p. 248)
.
METRIDIA GERLACHEI GiesbrechtMetridia gerlachei Giesbrecht, Resultats voyage S. Y. Belgica, 1897-99, Rapportsscientifiques, Exp?d. Antarctique Beige, Zool., Copepoden, p. 27, pi. 5, 1902.Stations 4 ; 6 ; 7 ; 11 ; 13 ; 14 ; 19 ; 21. Established by Giesbrecht uponspecimens collected during the voyage of the Belgica to the Antarcticin 1897 to 1899, and fully described and figured. It does not appearin any of the plankton lists here considered, but has been reported else-where from the Antarctic by Brady (1918, p. 25), Wolfenden (1911,p. 286), and Farran (1929, p. 259)/METRIDIA LONGA (Lubbock)Calanus longus Lubbock, Ann. Mag. Nat. Hist., ser. 2, vol. 14, p. 127, pi. 5, fig. 10,1854.Stations 1; 10; 31; 34; 41; 42; 48; 49; 50-52; 57; 59; 60; 2195;2236; 2859; 2861; 3602; 3799; 4685; 4707; 4709; 4757; 4758; 4760;
COPEPODS GATHERED BY ALBATROSS?WILSON 2654785; 4793; 4800; 4806; 5030; 5120; 5175; 5176; 5185; 5186; 5190;5227; 5262; 5263; 5287; 5301; 5422; H. 2700; Charles Island, Gala-pagos. Identified by Sars at 7 of these Albatross and at 4 Monacostations and present in the Carnegie but not in the Siboga planktons.The species has been considered a cold-water form. Sars (1925, p.198) has reported it from the Arctic.METRIDIA LUCENS BoeckMetridia lucens Boeck, Forh. Via. Selsk., Christiania, for 1864, p. 238, 18<j5.Stations 7; 8; 11; 13; 14; 16; 22; 25; 26; 29; 41; 42; 66; 67;70; 2236; 4759; 5030; 5196; Yes Bay, Alaska. Identified by Sarsfrom 11 of these Albatross and from 8 Monaco stations and found inthe Carnegie plankton. It is a more temperate form than the preced-ing species and is often captured in surface tows.METRIDIA MACRURA SarsMetridia macrura Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 7, 1905; Res.camp. sci. Albert de Monaco, No. 69, p. 197, pi. 54, figs. 1-7, 1925.[Station 5320. There is a single female from this station in theChina Sea in the Albatross collection (U.S.N.M. No. 74391). Thespecies was originally described from female specimens from theAtlantic; A. Scott also recorded a single female from the Pacific inthe Siboga report. Sewell (1913, p. 354) found both sexes in theIndian Ocean and later (1932, p. 249) gave a detailed description.
?
M. S. W.] METRIDIA PRINCEPS GiesbrechtMetridia princeps Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2, p.24, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 340,346, pi. 32, fig. 21 ; pi. 33, figs. 3, 18, 35, 40, 1892.Stations 1 ; 2 ; 9 ; 18 ; 4637 ; 4638 ; 4663 ; 4665 ; 4667 ; 4668 ; 4679 ; 4681
;
4683; 4685; 4687; 4700; 4701; 4703; 4705; 4707; 4717; 4719; 4722;4740 ; 4747 ; 4759 ; 4800 ; 5120 ; 5185 ; 5227 ; 5228 ; 5287. Identified bySars from 26 of these Albatross and from 56 Monaco stations andpresent also in the /Siboga and Carnegie planktons. Although foundmore often in the warmer portions of the oceans, this species has beenreported from the Antarctic (Wolfenden, 1911, p. 287; Farran, 1929,p. 258). METRIDIA VENUSTA GiesbrechtMetridia venusta Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol 5, sem. 2,p. 24, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 340, 340,pi. 32, fig. 9 ; pi. 33, figs. 7, 17, 29, 1892.Stations 4637 ; 4638 ; 4701 ; 5320 ; 5437. Identified by Sars from thefirst three of these five Albatross and from nine Monaco stations andpresent in the Siboga plankton.
266 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGenus MICROSETELLA Brady and Robertson, 1873MICROSETELLA NORVEGICA (Boeck)Setella norvegica Boeck, Forh. Vid. Selsk., Christiania, for 1864, p. 281, 1865.Stations 3; 6; 7; 13-16; 19; 21-23; 25; 26; 33-35; 45; 49; 53; 63;64; 67; 70; 5175; 5176; 5262; 5320; 5430; 5437; 5601. This minutespecies was found rather sparingly in both the Atlantic and PacificOceans and was usually taken in surface tows. It occurs in all thesubsequent plankton lists except the Monaco.MICROSETELLA ROSEA (Dana)Canthocamptus roseus Dana, United States Exploring Expedition, 1838-1842(Wilkes), vol. 14, pt. 2, Crustacea, p. 1189, 1853 ; pi. 83, fig. 10, 1855.Stations 34 ; 36 ; 41 ; 42-45 ; 47 ; 52 ; 54 ; 55 ; 57 ; 62-68 ; 71 ; 73 ; 75-77
;
79; 80; 82; 4588; 4644; 4663; 4806; 5186; 5234; 5320; 5338; 5340;5348 ; 5386 ; 5399 ; 5430 ; 5437 ; 5601 ; 5647 ; 5651 ; 5657. This is twicethe size of the preceding species, and even after long preservationusually retains a rosy tint on the head and anterior part of the body.This copepod is present in all the plankton lists except the Challenger;in the Carnegie plankton it was found at 70 percent of all the stations.Genus MIRACIA Dana, 1846MIRACIA EFFERATA DanaMiracia efferata Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 46, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea, p.1260, 1853 ; pi. 88, fig. 11, 1855.Stations 4037; 5246; 5334; 5386; 5437. This small copepod wasfound in very limited numbers in all the planktons except the /Siboga.It appears most frequently in surface tows.Genus MONACILLA Sars, 1905MONACILLA SEMISPINA (A. Scott)Plate 26, Figure 379Monacilla dubia A. Scott, Copepoda of the Si&o^fl-Expedition, monogr. 29a, pt. 1,p. 35, pi. 3, figs. 17-29, 1909.Station 5246. A single male (U.S.N.M. No. 74125) was captured ina vertical haul from a depth of 100 fathoms at this station east ofMindanao. It corresponds exactly with Scott's description andfigures of a single male from the Banda Sea, which he made a newspecies with the name Monacilla dubia on page 35 of the Siboga re-port. But on an earlier page, page 33, he described another newspecies, Oxycalanus semispinus, founded on females alone. However,
COPEPODS GATHERED BY ALBATROSS?WILSON 267Farran's (1908, p. 25) genus Oxycalanus is a synonym of Sars'(1905a, p. 8) genus Monacilla. Making this correction in the Sibogareport we find that Scott's two new species are brought together in thesame genus, semispina, based on females only, and dubia, based on asingle male. Furthermore, as two of the Albatross females came outof the same deep haul as the single male, the conclusion that they arethe male and female of the same species, as suggested by Sars in theMonaco plankton, is inevitable.MONACILLA TYPICA SarsPlate 26, Figuee 380Monacilla typica Sars, Bull. Mus. Oceanogr. Monaco, No. 26, p. 9, 1905a; Res.camp. sci. Albert de Monaco, No. 69, p. 38, pi. 11, figs. 1-15 ; pi. 12, figs. 1-10,1925.Stations 5120 ; 5246 ; 5437. Named and diagnosed by Sars in 1905,both sexes were fully described and figured in the Monaco plankton,but it does not appear in the other lists. Sars considered Scott'sOxycalanus semispinus and Monacilla dubia synonyms of his ownMonacilla typica. But the fifth legs of the males as here shown arecertainly those of different species, as can be seen by comparing thetwo figures. The females also seem specifically distinct in the propor-tions of metasome and urosome, in the symmetry or asymmetry of thegenital segment, and in the details of the various appendages, espe-cially the third and fourth pairs of legs. There are then three speciesof Monacilla, these two and Sars' species tenera distinguished by afrontal crest. A male of this species (typica) from station 5120, hasbeen given U.S.N.M. No. 74126.Genus MONSTRILLA Dana, 1849MONSTRILLA CLAVATA SarsMonstrilla clavata Sars, Crustacea of Norway, vol. 8, p. 14, pi. 6, 1921.Two females were obtained at Caldera Bay anchorage, west coastof Mindanao, Philippine Islands. The species is not found in any ofthe plankton lists but is fully described and figured in Sars' account(op. tit.). MONSTRILLA LEUCOPSIS SarsMonstrilla leucopsis Sars, Crustacea of Norway, vol. 8, p. 15, pi. 7, 1921.A single female was taken in company with the preceding speciesat the Caldera Bay anchorage, west coast of Mindanao, PhilippineIslands. It also is not found in any of the plankton lists but wasdescribed and figured by Sars (op. cit.)
.
268 BULLETIN 100, UNITED STATES NATIONAL MUSEUMMONSTRILLA SERRICORNIS SarsMonstrilla serricornis Saks, Crustacea of Norway, vol. 8, p. 19, pi. 10, fig. 1, 1921.Four males were taken in a surface tow at Butaritari Lagoon in theGilbert Islands and two more in company with the preceding speciesat the Caldera Bay anchorage, west coast of Mindanao, PhilippineIslands. The records of these three Monstrilla species are the firstfrom the Pacific Ocean, and the present species is the only one here-tofore reported since the original discovery.Genus MORMONILLA Giesbrecht, 1891MORMONILLA MINOR GiesbrechtMormonilla minor Giesbrecht, Atti Acead. Lincei, Rome, ser. 4, vol. 7, sem. 1,p. 475, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 532,537, pi. 43, figs. 27, 33, 1892.Station 4700. Three females were identified by Sars from thisstation between Easter Island and the Galapagos Islands. Since thisspecies does not appear in any of the plankton lists, this is the firstrecord since the original discovery in the eastern Pacific off the coastof Ecuador. MORMONILLA PHASMA GiesbrechtMormonilla phasma Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1,p. 474, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 532,536, pi. 43, figs. 28-32, 34-41, 1892.Stations 3799 ; 4676 ; 4679 ; 4707 ; 5185 ; 5437. The second species ofthis remarkable genus is rather better known than the preceding oneand was recorded from four Siboga stations but does not appear in theother lists. It was found by T. Scott (1894, p. 64) in considerablenumbers in the Gulf of Guinea in tow from a depth of 235 fathoms.Genus NANNOCALANUS Sars, 1925NANNOCALANUS MINOR (Clans)Cetochilus minor Claus, Die freilebenden Copepoden, p. 172, 1863.Stations2; 6; 16; 27; 31; 39; 41; 43; 44; 47; 53; 55; 57; 71; 77; 792236; 3765; 3789; 3799; 3829; 3867; 3901; 3912; 4010; 4190; 45884611; 4635; 4640; 4644; 4646; 4655; 4659; 4663; 4664; 4673; 46844700 ; 4703 ; 4707 ; 4710 ; 4715 ; 4719 ; 4721 ; 4723 ; 4738 ; 4743 ; 4850 ; 49525120; 5129; 5155; 5175; 5180; 5185; 5186; 5190; 5191; 5196; 52085223-5225; 5228; 5229; 5231; 5234; 5246; 5262; 5263; 5299; 53015309; 5319; 5320; 5338; 5340; 5382; 5386; 5388; 5396; 5397; 54105411; 5414; 5415; 5424; 5437; 5530; 5553; 5646; 5647; 5651; SabtanIsland, Philippine Islands; Fiji Islands; Charles Island, Galapagos.This is one of the most widely distributed of the calanoids. It ap-pears in all the plankton lists except the Challenger and is abundantin all, especially in the Monaco one.
COPEPODS GATHERED BY ALBATROSS?WILSON 269Genus NEOCALANUS Sars, 1925NEOCALANUS GRACILIS (Dana)Calanus gracilis Dana, Proc. Araer. Acad. Arts and Sci., vol. 2, p. 18, 1S49;United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1078, 1853 ; pi. 74, fig. 10, 1855.Stations 5; 6; 9; 16; 18; 30 49; 55; 59; 60; 64-67; 69; 236; 21953932; 4009; 40104689; 4694; 47004926; 4952; 51205190; 5196; 52095299; 5312; 5319
3799; 3800; 3829; 3834; 3867; 3878; 3901; 39124037; 4190; 4588; 4635; 4644; 4653; 4684; 46884706; 4721; 4722; 4725; 4731; 4738; 4750; 47605129; 5133; 5134; 5155; 5175; 5180; 5185; 51865224; 5225; 5230; 5233; 5234; 5240; 5246; 52635320 ; 5338 ; 5340 ; 5342 ; 5382 ; 5386 ; 5397 ; 5414 ; 5415 ; 5422 ; 5437 ; 55305601; 5647; H. 2700; Iloilo Straits, Philippine Islands; Fiji Islands.Another very widely distributed calanoid found in all the planktonlists except the Challenger, with the number of specimens reachingthe hundreds. NEOCALANUS ROBUSTIOR (Giesbrecht)Calanus robustior Giesbkecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 332, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 91,129, pi. 7, figs. 15, 19, 25, 30 ; pi. 8, fig. 34, 1892.Stations 3; 5; 6; 7; 15; 16; 44; 236; 2807; 2859; 3799; 3800; 38033829 ; 3878 ; 3901 ; 4009 ; 4010 ; 4037 ; 4674 ; 4678 ; 4679 ; 4681 ; 4683 ; 46854687; 4689; 4692; 4701; 4703; 4705; 4707; 4722; 4730; 4731; 47344740; 4926; 5030; 5120; 5129; 5133; 5234; 5284; 5301; 5340; 53865399; 5422; 5437; Fiji Islands. This species was also found at 10Siboga, 14 Monaco, and 70 Carnegie stations, the preponderance inthe latter plankton probably due to the fact that more tows were takenat the surface. NEOCALANUS TENUICORNIS (Dana)Calanus tenuicornis Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 15, 1849;United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1069, 1853 ; pi. 73, fig. 10 a, b, 1855.Stations 1; 3799; 3800; 3878; 3901; 3932; 4190; 4926; 4942; 4952;5185; 5186; 5223; 5320; 5340; 5399; 5415; 5422; 5437; Fiji Islands;Charles Island, Galapagos. Identified by Sars from 10 Monaco sta-tions and found also at 1 Siboga and 52 Carnegie stations. It is notso widely distributed as the two preceding species and is limited innumbers. Genus OCULOSETELLA F. Dahl, 1895OCULOSETELLA GRACILIS (Dana)Miracia gracilis Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 46, 1849;United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1261, 1853 ; pi. 88, fig. 12 a-c, 1855.
270 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 7; 8; 34; 35; 42; 4700; 5301; 5320; Fiji Islands. Foundat 2 Wilkes, 3 Monaco, and 26 Carnegie stations but not present in theSiboga plankton. This is the species named Miracia gracilis by Dana,but Sars (1916, p. 13) recognized that it did not belong in that genusbut was rather a true Setella. However, the type species of Setellaalready bore the name gracilis. Hence, if Dana's species was to betransferred to the genus Setella its specific name had to be changed,so Sars called it Setella oculata, which later became the Macrosetellaoculata of Rose (1929, p. 54) and subsequent authors. However, F.Dahl (1895, p. 171) stated that Dana's species differed enough fromthe other Setellidae to warrant the establishment of a new genus forit, suggesting the name Oculosetella. Placing it in this hitherto un-recognized genus permits the retention of the specific name given toit by Dana. It is a rare species, and two specimens are usually themost obtained in a single tow, though at station 4700 four femalesand one male were captured.Genus OITHONA Baird, 1843OITHONA LINEARIS GiesbrechtOithona linearis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1, p.475, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 538, 548,pi. 34, figs. 1, 2, 40, 1892.Stations 11; 23; 29; 46; 47; 52-55; 59; 61; 63; 64; 67; 3799; 5120;5209 ; 5246 ; 5263 ; 5320 ; 5348 ; 5399 ; 5437 ; Niuafu Island. Originallyobtained from the tropical Pacific by Giesbrecht and otherwise re-ported only in the Carnegie plankton list. Only a single specimen wasobtained at most of these Albatross stations and the highest numberwas three. OITHONA PLUMIFERA BairdOithona plumifera Baird, Zoologist (Newman), vol. 1, p. 59, fig. b, 1843.Stations 4 ; 34 ; 43 ; 44 ; 75 ; 76 ; 4700 ; Fiji Islands. A single femalewas obtained at each of these stations except the last two, where collec-tions of from 30 to 50 specimens including both sexes were obtained.The species appears in all the plankton lists except the Challenger, butalways in very small numbers. It seems to stay at or near the surfaceand is not likely to be found in a deep tow.OITHONA ROBUSTA GiesbrechtOithona roousta Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1, p.475, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 538, 549,pi. 34, figs. 4, 5, 16, 17, 23, 30, 31, 43, 1892.Stations 2195 ; 2806 ; 3765 ; 4676. This species, originally describedfrom the tropical Pacific, was taken once by the Carnegie a little east
COPEPODS GATHERED BY ALBATROSS?WILSON 271of the type locality. Farran again records it from the tropical Pacific(1936, p. 124) and also from the Indian Ocean (1913, p. 184). Notappearing in any of the other plankton lists, it is, however, reportedfrom the Adriatic near Venice by Pesta (1920, p. 554) . The Albatrosshas established its presence in the Atlantic (station 2195) , besides tak-ing it off Peru, in the Galapagos Islands, and in Japanese waters.OITHONA SIMILIS ClausOithona similis Claus, Die Copepoden-Fauna von Nizza, p. 14, 1866.Stations 2-4; 6; 7-9; 11; 12; 19-22; 24-27; 29; 33-35; 42; 44-47;49; 51; 55; 57-60; 62-64; 66; 67; 73; 75; 76; 2195; 2806; 3765; 3799;3829; 3980; 4010; 4037; 4756; 4759; 4926; 5120; 5129; 5133; 5155;5175; 5176; 5185; 5190; 5208; 5224; 5225; 5227; 5228; 5231; 5240;5246 ; 5262 ; 5309 ; 5319 ; 5320 ; 5340 ; 5348 ; 5387 ; 5415 ; 5437 ; 5651 ; Sab-tan Island, Philippine Islands; Fiji Islands. This is probably themost widely distributed species of the genus, but in spite of the longlist of stations it must be classed as comparatively rare in the Albatrossplankton. In his "Crustacea of Norway," Sars (1913, p. 8) makes astatement that is supported by the present plankton : "Male specimensare much scarcer than females, and seem only to appear in certainseasons." The species was included in the Monaco and Carnegie lists.OITHONA SPINIROSTRIS ClauaOithona spinirostris Claus, Die freilebenden Copepoden, p. 105, pi. 11, figs. 4-9,1863.Stations 10; 25; 60; 65; 67; 3799; 5120; 5246; 5338; 5437; FijiIslands. This is another species of which both sexes were describedand figured by Sars (1913, p. 6) . It appears also in the Carnegie andChallenger planktons.Genus OITHONINA Sars, 1913OITHONINA NANA (Giesbrecht)Oithona nana Giesbkecht, Fauna und Flora des Golfes von Neapel, monogr. 19,pp. 538, 549, pi. 4, fig. 8 ; pi. 34, figs. 10, 11, 20, 24, 26, 34, 35, 42 ; pi. 44, figs.2, 4, 6, 1892.Taken at the surface, south of the Suva Light, in the Fiji Islands;found also in the Carnegie plankton but not in the others.Genus ONCAEA Philippi, 1843ONCAEA CONIFERA GiesbrechtOncaea conifera Giesbrecht, Atti Accad. Lincei Rome, ser. 4, vol. 7, sem. 1, p. 477,1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 591, 603, pi. 2,fig. 10 ; pi. 47, figs. 4, 16, 21, 23, 28, 34-38, 42, 55, 56, 1892.
272 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMStations 41 ; 65 ; 73 ; 3782 ; 3799 ; 5120 ; 5231 ; 5246 ; 5262 ; 5263 ; 5296
;
5320; 5424; 5437; 5495. This species was also found at 3 Siboga, 4Monaco, and 24 Carnegie stations, and it has been reported from boththe Arctic (Mrazek, 1902, p. 517) and Antarctic (Wolfenden, 1911, p.362 ; Farran, 1929, p. 285) Oceans. Since these Albatross stations aremostly in the tropical Pacific, the species is evidently not much in-fluenced in its distribution by temperature.ONCAEA MINUTA GiesbrechtOncaea minuta Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr. 19,pp. 591, 603, pi. 47, figs. 3, 6, 126, 46, 59, 1892.Stations 2; 12; 19; 22; 25; 27; 31; 36; 39; 51; 57; 62; 63; 65; 6670 ; 71 ; 73 ; 75 ; 76 ; 81 ; 3712 ; 3765 ; 3799 ; 3800 ; 3829 ; 3834 ; 3867 ; 38783901; 3912; 3930; 3980; 4009; 4010; 4011; 4037; 4190; 4588; 46634926; 4952; 5120; 5129; 5133; 5134; 5185; 5186; 5225-5227; 52315233; 5234; 5240; 5246; 5262; 5263; 5299; 5308; 5309; 5312; 53205338; 5340; 5348; 5349; 5382; 5386; 5387; 5397; 5399; 5410; 54115415; 5430; 5437; 5488; 5507; 5530; 5601; 5646; 5651; Sabtan Islandand Iloilo Straits, Philippine Islands; Fiji Islands; Niuafu Island.Identified by Sars from 9 of these Albatross stations but not present inthe Monaco plankton- It was taken at 5 Siboga and 110 Carnegiestations, nearly always in surface tows.ONCAEA NOTOPA GiesbrechtOncaea notopua Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1, p. 477,1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 591, 603, pi. 47,figs. 12, 15, 45, 1892.Stations 34; 66; 67; 71; 73; 75; 3878; 5224. Established by Gies-brecht upon specimens from the tropical Pacific and given a detaileddescription by Sars (1900, p. 107). Present only in the Carnegieplankton. ONCAEA ORNATA GiesbrechtOncaea ornata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1, p. 477,1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 591, 604, pi. 44,figs. 50, 51 ; pi. 47, figs. 20, 24, 49, 53, 1892.Stations 3829; 5175; 5190; 5226; 5240; 5319. Another species es-tablished upon specimens from the tropical Pacific and not appearingin any of the plankton lists except the Carnegie, where it was alsoconfined to the tropical Pacific.ONCAEA SIMILIS SarsOncaea similis Sars, Crustacea of Norway, vol. 6, p. 193, pi. 109, fig. 1, 1918.
COPEPODS GATHEEED BY ALBATROSS?WILSON 273Stations 39 ; 42 ; 43 ; 45 ; 55 ; 62 ; 65 ; 71 ; 73 ; 3829 ; 5133 ; 5186 ; 5190
;
5223; 5225; 5228; 5240; 5434. Established upon specimens from theNorwegian fjords and appearing only in the Carnegie plankton list.ONCAEA VENUSTA PhilippiOncaea venusta Philippi, Arch. f. Naturg. (Wiegmann), vol. 1, Jahrg. 9, p. 63,pi. 3, fig. 2, 1843.Stations 7; 12; 16; 19; 21; 22; 24; 31; 34; 36; 39; 41; 42; 44; 46;47; 49; 52; 53; 57; 59; 60; 62; 63; 65-68; 70; 71; 75^-80; 82; ! 2806;3932; 3980; 4009; 4037; 4611; 4644; 4671; 4707; 4731; 5102; 5133;5155; 5175; 5180; 5185; 5186; 5190; 5196; 5208; 5223; 5225; 5228;5231 ; 5233 ; 5246 ; 5262 ; 5301 ; 5308 ; 5312 ; 5219 ; 5320 ; 5338 ; 5340 ; 5348
;
5382; 5386; 5399; 5412; 5415; 5434; 5437; 5507; 5530; 5553; 5646;5651 ; Sabto.n Island, Philippine Islands; Fiji Islands ; Niuafu Island;Charles Island, Galapagos. Found also at 30 Monaco, 59 Siboga,and 102 Carnegie stations, nearly always in surface tows.Genus ONCHOCALANUS Sars, 1905ONCHOCALANUS AFFINIS WithPlate 26, Figure 381Oncliocalanus aflinis With, Danish Ingolf-Expedition, vol. 3, pt. 4, p. 233, figs.75a-e, 76a-d, 1915.Stations 4679 ; 5120. From the first of these stations between Callao,Peru, and Easter Island, Sars identified two females, and from aMonaco station in the northern Atlantic one female. Also from thesecond Albatross station, in the Philippines, only one female was taken.With's original specimens were a single male and female from thenorthern Atlantic. The Albatross specimens therefore are the firstto be reported from the Pacific. The fifth leg of the female has oneor two additional spines on the outer margin of the end segment.ONCHOCALANUS CRISTATUS (Wolfenden)Xanthocalanus cristatus Wolfenden, Jonrn. Mar. Biol. Assoc. United Kingdom,new ser., vol. 7, No. 1, p. 119, pi. 9, figs. 18, 19, 1904.Stations 4707 ; 5185 ; 5231. Three females were captured at the firststation, located between Easter Island and the Galapagos, a singlefemale at the second station, in the Philippines, and two females atthe last station, also in the Philippines. The species was also reportedfrom 1 Carnegie, 2 Siboga, and 4 Monaco stations, but all females invery small numbers. ONCHOCALANUS HIRTIPES SarsOncliocalanus hirtipcs Sars, Bull. Mus. Oc?anogr. Monaco, No. 26, p. 20, 1905a;Res. camp. sci. Albert de Monaco, No. 69, p. 148, pi. 41, figs. 6-11, 1925.
274 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 4667; 4715; 5120; 5185; 5231. Identified by Sars at thefirst two of these Albatross and at four Monaco stations. Reportedotherwise only in the Siboga plankton.ONCHOCALANUS STEUERI PestaOnchocalanus steueri Pesta, Zool. Jabrb. (Abt. Syst.), vol. 43, p. 516, pi. 8, figs.1-11, 1920.Station 5185. A single female was found at this Philippine station.The species was described from the southern Adriatic and does notappear in any of the plankton lists.ONCHOCALANUS TRIGONICEPS SarsOnchocalanus trigoniceps Sars, Bull. Mus Oceanogr. Monaco, No. 26, p. 20, 1905a ;R?5s. camp. sci. Albert de Monaco, No. 69, p. 144, pi. 40, 1925.Stations 4665; 4676; 4679; 4717; 4740; 5320. Identified by Sarsfrom 5 of these Albatross and 27 Monaco stations, thus becoming themost widely distributed species of the genus. It was also present inthe Carnegie plankton.Genus PACHOS Stebbing, 1910PACHOS PUNCTATUM <Claus)Pachysoma punctata Claus, Die freilebenden Copepoden, p. 163, pi. 25, figs. 6-11,1863.Stations 4615 ; 4681 ; 4721 ; 4724 ; 4734 ; 4793 ; 5185 ; 5225. A singlefemale was obtained at all of these stations except 4734 where some 25specimens were secured; the species was also present at a singleChallenger station, at four Siboga stations, and at nine Carnegiestations. Genus PACHYPTILUS Sars, 1920PACHYPTILUS ABBREVIATUS (Sars)Pontoptilus aJjhreviatus Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 19, 1905b.Pachyptilus ahlreviatus Saks, Res. camp. sci. Albeit de Monaco, No. 69, p. 319, pi.113, 1925.Stations 3799 ; 4664 ; 4665 ; 4667 ; 4671 ; 4676 ; 4679 ; 4681 ; 4685 ; 4688
;
4700 ; 4711 ; 4719 ; 4747 ; 4760 ; 5190 ; Fiji Islands ; Ellice Islands. Iden-tified by Sars from 11 of these Albatross stations and from three Mon-aco stations. It was reported first from the Pacific in the Carnegieplankton. The above list of stations shows that the species is morewidely distributed in that ocean than in the Atlantic, where it wasoriginally found. PACHYPTILUS EURYGNATKUS SarsPachyptilus euryynathus Sars, Bull. Inst. Oceanogr. Monaco, No. 377, p. 18, 1920;Res. camp. sci. Albert de Monaco, No. G9, p. 321, pi. 114, 1925.
COPEPODS GATHERED BY ALBATROSS?WILSON 275Stations 4671 ; 4679 ; 4705 ; 4717 ; 4760 ; 4765 ; 4793. Identified bySars from three of these seven Albatross stations and from threeMonaco stations but not present in the other plankon lists. These arethe first specimens to be obtained since the establishment of the species,as well as the first from the Pacific Ocean.Genus PARACALANUS Boeck, 1865PARACALANUS ACULEATUS GiesbrechtParacalanus aculeatus Giesbrecht, Atti. Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 332, 1888 ; Fauna und Flora des Golfes von Neapel, ntonogr. 19, pp. 164, 170,pi. 9, figs. 20, 26, 30, 1892.Stations 9 ; 12 ; 13; 14; 16; 18; 24; 27; 30; 32; 41; 54; 58; 61; 65; 81;4743; 5263; 5399; 5412; 5437. Identified by Sars from 11 of theseAlbatross stations and from one Monaco station and found at 37Siboga stations and in the Carnegie plankton, everywhere in very smallnumbers. PARACALANUS NANUS SarsParacalanus nanus Sars, Bull. Inst. Oceanogr. Monaco, No. 101, p. 4, 1907 ; Res.camp. sci. Albert de Monaco, No. 69, p. 26, pi. 6, figs. 10-17, 1925.Stations 5227, 5229, 5231 ; only a few females were taken at thesePhilippine stations. It was reported from the Indian Ocean bySewell (1929, p. 71). PARACALANUS PARVUS (Claus)Calanus parvus Claus, Die freilebenden Copepoden, p. 173, pi. 26, figs. 10-14 ;pi. 27, figs. 1-4, 1863.Stations 1-4; 6-8; 10; 11; 14; 16; 19-23; 25; 27; 29; 30; 32-36; 3942; 44; 47; 51; 54; 55; 57; 59; 62-66; 68; 70; 71; 73; 75; 793834458851555231-5338;5411;
81; 82; 2195; 3681; 3705; 3712; 3765; 3799; 3803; 3822; 38293867; 3878; 3901; 3912; 3927; 3981; 4010; 4011; 4037; 41904664; 4673; 4756; 4806; 4926; 4952; 5030; 5120; 5129; 51345180; 5185; 5190; 5208; 5209; 5219; 5223; 5226; 5227; 52295233; 5240; 5246; 5262; 5263; 5299; 5301; 5309; 5319; 53205340-5342; 5348; 5349; 5358; 5381; 5386; 5387; 5397; 54105415; 5423; 5424; 5437; 5489; 5601 ; 5647; 5651; Iloilo Straits, Philip-pine Islands; Fiji Islands. This species is also widely distributed inthe Carnegie, Monaco, and Siboga planktons.Genus PARAUGAPTILUS Wolfenden, 1904PARAUGAPTILUS BUCHANI WolfendenPlate 26, Figures 382, 383Paraugaptilus ouchani Wolfenden, Journ. Mar. Biol. Assoc. United Kingdom,new ser., vol. 7, No. 1, p. 123, pi. 9, figs. 44, 45, 1904.843804?50 10
276 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 4761; 5231. Originally established by Wolfenden uponspecimens from the northern Atlantic and briefly characterized. Sarsgave a detailed description and figures of both sexes in the Monacoreport, but it is not found in the other planktons. This is the firstrecord from the Pacific.A male and a female were found at station 4761 in the northernPacific, and another pair found at station 5231 in the Philippines.The fifth legs of these two Albatross females differ from the othersand from the ones described by Sars. They are asymmetrical, theright leg larger than the left; in the first one (fig. 382) the marginalseta on the left leg is removed a little from the edge on to the surfaceof the leg. There is also a small knob or process on the surface ofeach leg just behind the base of the terminal seta. In the second onethese knobs are lacking, but there is an extra spine on the rightleg behind the terminal seta- In all other details these females cor-respond exactly with the description and figures given by Sars. Thedifferences noted therefore must be regarded as malformations ratherthan specific characters.Genus PAREUCHAETA A. Scott, 1909[?] PAREUCHAETA BARBATA (Brady)Euchaeta barbata Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 66, pi. 22, figs. 6-12, 1883.Stations 4646 ; 4648 ; 4650 ; 4660 ; 4661 ; 4663-4665 ; 4667 ; 4669 ; 4671
;
4676; 4679; 4681; 4700; 4707; 4711; 4715; 4719; 4721; 4722; 4757;4765; 5185. Identified by Sars from 20 of these Albatross stationsand from 41 Monaco stations; found also at one Challenger and oneSiboga station. The genital segment of the female carries a smallrounded tubercle on the left side at the base of the ventral protuber-ance. [The identity of P. barbata has long been questionable. It isunfortunate that Dr. Wilson was not aware of Sewell's discussion(1929, p. 155) of this matter and his description of a specimen thathe had compared with Brady's type in the British Museum. A carefulstudy of these Albatross specimens will have to be made before theactual identification can be stated.?M. S. W.]PAREUCHAETA BISINUATA (Sars)Euchaeta bisinuata Sars, Bull. Inst. Oeeanogr. Monaco, No. 101, p. 12, 1907.Pareuchaeta bisinuata Sars, Res. camp. sci. Albert de Monaco, No. 69, p. 123,pi. 33, figs. 16-22, 1925.Stations 4765 ; 5263 ; 5633. This species was found at 16 Monacoand 5 /Siboga stations and was fully described by Sars in the Monacoreport. Most of the Albatross specimens, as well as those in the Sibogaplankton, were captured in vertical hauls from considerable depths.
COPEPODS GATHERED BY ALBATROSS?WILSON 277PAREUCHAETA BRADYI (With)Euchaete bradyi With, Danish Ingolf-Expedition, vol. 3, pt. 4, p. 182, figs.53a-b, pi. 6, fig. 9a, 1915.Stations 4724; 5120; 5231. Established by With upon a singlefemale from the northern Atlantic north of the British Islands andrecorded by Sars in the Monaco plankton, the locality unknown. Allthe Albatross specimens came from the tropical Pacific and are thefirst record from that ocean. It is evidently a rare species and notat all well distributed, and the male still remains unknown.PAREUCHAETA CALIFORNICA (Esterly)Plate 26, Figures 384-389JEuchaeta califomica Esterly, Univ. California Publ. Zool., vol. 3, No. 5, p. 60,pi. 9, fig. 11 ; pi. 10, figs. 26, 34, 1906.Stations 4588; 4700. Established in 1906 by Esterly upon asingle female taken off the coast of southern California. Scott re-corded 10 females in the Siboga plankton from the tropical Pacific,Sewell found it in the Indian Ocean (1929, p. 158) but it does notappear in the other lists. Neither Esterly nor Scott gave more thana brief description, and both left the male unknown. About 40specimens, including both sexes, were obtained from these two Alba-tross stations and are here described, the male for the first time.This male and a female have been given U.S.N.M. No. 74127.Female.?Metasome elongate elliptical, two and a half times aslong as wide; head separated from the first segment and broadlyrounded in front with a central projection over the base of the rostrum.Fourth and fifth segments fused and narrowly rounded posteriorly,with a tuft of coarse hairs at the tip of the curve. Urosome two-fifths as long and a fourth as wide as the metasome and 4-segmented.Genital segment barrel-shaped in dorsal view, considerably enlargedthrough the center with a large ventral protuberance nearer the for-ward end. On each side of the genital opening is a fingerlike processstarting at the anterior margin and extending backward into plainview behind the ventral protuberance. The one on the left is a littlelonger than the one on the right, and the two are inclined somewhattoward each other. The first two abdominal segments are the samelength, each a little shorter than the genital segment. The anal seg-ment is much shorter and incised at the center of its posterior margin.The caudal rami are well separated, a little longer than wide, withthe outer seta at the center of the outer margin.The first antennae reach the center of the first abdominal segmentand are rather slender, with three or four long setae on the basal halfand three at the very tip. There are also small cylindrical aesthetasks
278 BULLETIN 100, UNITED STATES NATIONAL MUSEUMon segments 5, 8, 11, 13, 18, and 23. In the second antennae theexopod is much longer than the endopod and the end segment islonger than the second segment. The mandible (fig. 387) has twolarge acute teeth on the narrow chewing blade, the outer one longerthan the inner. The palp is biramose, the rami well separated, theendopod 2-segmented, the exopod 4-segmented. The maxilliped is7-segmented, the basal segment with three setae on the outer margin,the second segment with three setae on the inner margin, and the fiveend segments very short, each with two large setae on its inner margin,curved and plumed on the concave side only. The exopod of the firstleg is distinctly 3-segmented; Esterly said it was 2-segmented withan extra spine on the basal segment; Scott did not mention it, buthis figure shows three segments. Total length 7 mm.Male.?Metasome similar to that of the female but proportionallyshorter and wider; head separated from the first segment with therostrum turned ventrally almost at right angles to the body axis.Fourth and fifth segments fused with a similar tuft of hairs at thetip of the curve. Urosome longer than in the female, half as long asthe metasome if the caudal rami are included and made up of fivesegments. These diminish in length distally, but the first four areabout the same width; the anal segment is much shorter and nar-rower. The caudal rami are longer than the anal segment and one-half longer than wide.The first antennae are shorter than in the female and do not quitereach the urosome, and neither of them is geniculate. The second an-tennae and mouth parts correspond to those of the female with similarmandibles and maxillipeds. The exopod of the first leg is also dis-tinctly 3-segmented. The fifth legs are large and reach beyond thetips of the caudal rami (fig. 385). The second basipod of the rightleg is considerably swollen, and the exopod is 2-segmented, the endsegment as long as the basal and bluntly rounded at its tip. Theendopod is 1-segmented and as long as the basal exopod segment;the distal half is flattened and somewhat twisted. The left leg is4-segmented and made up of two basipod and two exopod segmentswith no trace of an endopod. Neither basipod segment is swollen,but the first exopod segment is enlarged on its inner margin. Theend segment is widened at its tip and the terminal armature is rathercomplicated, as seen in enlarged detail in figure 389. Total length6.75 to 7 mm.Allotype male.?U.S.N.M. No. 74127; station 4588, latitude 19?52'N., longitude 106?02' W., southwest coast of Mexico.Remarks.?The fingerlike processes on the ventral protuberance ofthe genital segment in the female are plainly visible in lateral and
COPEPODS GATHERED BY ALBATROSS?WILSON 279
ventral view. Combined with the detailed armature at the tip ofthe left leg in the male they furnish the best characteristics for identi-fication. PAREUCHAETA EREBI FarranPlate 14, Figures 173-179Pareuchaeta ereti Farran, British Antarctic {Terra Nova) Exped., 1910, Zool.,vol. 8, No. 3, p. 239, fig. 9, 1929.Stations 41 ; 2861 ; 3901 ; 4700 ; 5030 ; 5129 ; 5227. Fifteen specimens,including both sexes, were taken in a tow at a depth of 300 fathoms atstation 5030 in the Okhotsk Sea. These Albatross specimens aresmaller than those described by Farran and differ in one or two minordetails, but they agree in all essential characteristics and include malesas well as females.Female.?Metasome elliptical, a little more than a third as wide aslong ; head fused with the first segment and tapered to an acute pointanteriorly. Fourth and fifth segments also fused, the posterior cor-ners reaching the genital segment each tipped with a short blunt spine.Urosome not quite half as long as the metasome, tapering a little pos-teriorly and 4-segmented. In lateral view the base of the ventral pro-tuberance of the genital segment extends the whole length of thesegment, with the protuberance itself close to the anterior margin. Atthe tip the protuberance is flanked by a lamella on each side ; the oneon the right is larger than the one on the left and extends considerablyfarther posteriorly and ventrally, forming the projecting tip seen inside view. Between the bases of these two lamellae anteriorly is athird lamella, almost an exact trefoil in shape, and posteriorly is aroughened ridge. The first two abdominal segments are about equalin length ; the anal segment is less than a fourth as long. The caudalrami are twice as long as wide, and the appendicular setae are weaklygeniculate.The first antennae reach the anterior margin of the fourth thoracicsegment and are rather sparsely setose. The exopod of the secondantenna is much longer than the endopod, and the end segment islonger than the second segment. The exopod of the first leg is 2-seg-mented, the basal segment with a very concave outer margin armedwith an aciculate spine at the center of the concavity and a largeacuminate spine at the outer distal corner. The endopod is 1-seg-mented with five setae and does not reach the end of the basal segmentof the exopod. Total length 7 to 7.50 mm.Male.?General body shape and proportions like those of the femalebut rostrum not so prominent and posterior corners of the metasomeevenly rounded without spines. Urosome more than half as long as
280 BULLETIN 100, UNITED STATES NATIONAL MUSEUMthe metasome and not tapered, the genital segment completelysymmetrical.First antennae reaching the genital segment and more setose thanin the female. The second antennae and mouth parts similar to thoseof the female, but the exopod of the first leg is distinctly 3-segmented.The basal segment, however, has no outer spine or inner seta, and thespine at the outer distal corner of the second segment is much smallerthan in the female. The second basipod of the right fifth leg isswollen to twice the diameter of the first; the endopod is the samelength as the proximal segment of the exopod. The terminal segmentof the exopod is fully as long as the basal and quite slender, with ablunt point. The two basipod segments of the left leg are cylindricaland reach the center of the right endopod. The left endopod is re-duced to a slender spine so small as to be easily overlooked. The basalsegment of the exopod is one-half longer than the end segment, andthe latter is a little wider at the tip than at the base. Its complicatedterminal armature is shown under greater magnification in figure 179,and attention is called to the three processes at the distal end and thedentate knob and margin on the inner side- Total length 7 to 7.25 mm.Allotype male.?U.S.N.M. No. 70740; station 5030; latitude46?29'30" N., longitude 145?46' E., Okhotsk Sea.Remarks.?The distinctive characters in this species are the ventralprotuberance on the genital segment of the female and the detailedarmature of the end segment of the left fifth leg in the male.PAREUCHAETA EXIGUA (Wolfenden)Plate 28, FiotrnES 390-392Euchaeta cxigua Wolfenden, Deutsche Siidpolar-Exped., 1901-1S03, vol. 12, Zool.,vol. 4, fasc. 4, p. 300, fig. 52a-d, 1911.Station 4701. A single female of this species was identified by Sarsin the plankton of this station between Easter Island and the Gala-pagos group. The species does not appear in any of the plankton lists,and the present record is the first since its original discovery, as wellas the first for the Pacific Ocean. Station 4701 is one of the deepertows from 300 fathoms to the surface, suggesting a possible reasonfor the scarcity of the species nearer the surface. Sars made a dorsaldrawing of the entire body and also a profile drawing of the genitalsegment, which are here reproduced. The profile drawing corre-sponds closely with Wolfenden's figure, while the dorsal view is thefirst full length figure of the species to be published. On the tip of theventral protuberance of the genital segment in the female are two pads(fig. 392). One of these is anterior in the center and extends back-ward ; the other is on the right side and extends across to the left and
COPEPODS GATHERED BY ALBATROSS?WILSON 281away from the surface of the protuberance. It is the latter pad thatforms the protrusion seen in the lateral view and thus furnishes aready means of identification.PAREUCHAETA GRACILIS (Sar?)Plate 26, Figure 393Euchaeta gracilis Sars, Bull. Mus. Oceanogr. Monaco, No. 26, p. 16, 1905a.Pareuchaeta gracilis Sars, R6s. camp. sci. Albert de Monaco, No. 69, p. 120, pi.33, figs. 1-8, 1925.Stations 42; 2859; 3799; 4709; 4759; 4760; 5129; 5185; 5227; 5231;5263; 5319; 5320; 5553; 5578; Sabtan Island, Philippine Islands.Identified by Sars from three of these Albatross stations and from 13Monaco stations. Both sexes were fully described in the Monaco re-port. It does not occur in any of the other plankton lists.PAREUCHAETA GRANDIREMIS (Gieabrecht)Plate 15, Figures 180-185Euchaeta grandiremis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 337, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 246,264, pi. 16, figs. 11, 42 ; pi. 37, figs. 41, 42, 1892.Stations 15; 16; 4583; 4585; 4634; 4637; 4638; 4646; 4648; 4652;4659; 4663; 4664; 4665; 4667; 4673; 4676; 4679; 4681; 4687; 4700;4701; 4707; 4711; 4713; 4715; 4717; 4719; 4721; 4722. Originallyreported from the tropical Pacific, this species was next recorded fromthe tropical Atlantic in the Carnegie plankton. Giesbrecht's typeswere females but these Albatross specimens include both sexes. Sincethe only description of the female is very meager, it is redescribed here,along with a first description of the male. Both are based upon repro-ductions of Sars' excellent pencil drawings.Female.?Metasome elliptical, three times as long as wide and nar-rowed but little at each end, the frontal margin sharply pointed andthe rostrum almost at right angles to the body axis. The posteriorcorners of the thorax are smoothly rounded, with a few scatteredhairs. Urosome two-fifths as long as the metasome and 4-segmented
;
the genital segment is a little wider than the abdomen and twice as longas wide, the lateral margins somewhat convex. The ventral protu-berance is smoothly rounded and projects a distance equal to the thick-ness of the segment itself. The basal segment of the abdomen islonger than the other two segments combined, while the anal segmentis very short. The caudal rami are longer than the anal segment andsomewhat divergent; the appendicular setae are strongly geniculateand much lengthened. The ventral surface of the abdomen is some-what hairy as seen in the lateral view.
282 BULLETIN 100, UNITED STATES NATIONAL MUSEUMThe first antennae reach five or six segments beyond the caudal ramiand are rather sparsely setose. The endopod of the second antenna islonger and stouter than the exopod. The endopods of the first andsecond legs are 1-segmented, those of the second pair giving evidencethat they are made of up two fused segments. Exopods of first legs2-segmented ; all the other leg rami 3-segmented. Total length 5 mm.Metasome 3.54 mm. long, 1.20 mm. wide.Male.?Metasome similar to that of the female but proportionallyshorter; forehead without a notch above the conical rostrum. Uro-some nearly half as long as the metasome and 5-segmented ; anal seg-ment very short ; appendicular setae very long and strongly geniculate.Antennae, mouth parts, and first four pairs of legs like those of thefemale; fifth legs of a peculiar pattern. The two basipods of theright fifth leg are the same width and only moderately inflated. Theendopod is a trifle longer than the basal segment of the exopod andbluntly pointed. Both segments of the exopod are curved a little, thebasal segment longer than the terminal. The two basipods of the leftleg reach the center of the basal segment of the right exopod ; the leftendopod is entirely lacking. The terminal armature of the left exo-pod is shown in magnified detail in figure 185. The teeth on theinner margin of the rigid ramus, the tuft of hairs on the inner marginof the movable ramus, and the spherical swelling tipped with hairs atthe base between the two rami are distinctive characters. Totallength 4.10 mm. Metasome 3.25 mm. long, 0.81 mm. wide.Allotype male.?U.S.N.M. No. 70731; station 4667, latitude 12?00'S., longitude 83?40' W., off Peru.Remarks.?The exceptional length of the first antennae combinedwith the size and shape of the ventral protuberance on the genital seg-ment will serve to identify the female. The details of the end segmentof the left fifth leg will do the same for the male. A depth of 1,000 to1,800 meters is recorded by Giesbrecht for the vertical tows containingthe original types; one of the Albatross tows was a vertical one from2,000 fathoms to the surface, one from 400 fathoms, 20 from 300fathoms, another was a tow of 2 fathoms below the surface, threewere made at the surface, and at three stations surface captures wereeffected with the aid of an electric-light lure.PAREUCHAETA HANSENII (With)Euchaete hansenii With, Danish Ingolf-Expedition, vol. 3, pt. 4, p. 181, figs.52a-b, 1915.Stations 16; 4538; 4759; 5120; 5185; H. 3789. Originally estab-lished by With upon a single mutilated female from the northernAtlantic, it was obtained at three stations in the Monaco planktonand the female was fully described and figured by Sars.
COPEPODS GATHERED BY ALBATROSS?WILSON 283PAREUCHAETA INCISA (Sars)Euchaeta incisa Sars, Bull. Oceanogr. Monaco, No. 26, p. 17, 1905a.Pareuchaeta incisa Sars, Res. camp. sci. Albert de Monaco, No. 69, p. 117, pi. 32,figs. 7-11, 1925.Stations 77; 3829; 4009; 4427; 4681; 5129; 5224; 5229; 5231; 5233;5263; 5287; 5319; 5578. Identified by Sars from one of these Alba-tross stations and from six Monaco stations and fully described in theMonaco report. It was first reported from the Pacific in the Carnegieplankton. As in the preceding species, the male remains unknown.PAREUCHAETA NORVEGICA (Boeck)Euchaeta norvegica Boeck, Forb. Vid. Selsk. Christiania, vol. 14, p. 40, 1872.Stations 2195; 2219; 2236; 3716; 4758; 4760; 4765; 4793; 4806;5231; 5578; H. 2700. Both sexes were described by Sars (1902, p.38) in his Crustacea of Norway and placed in the genus Euchaeta butwere afterward made types of the new genus Pareuchaeta by Scott inthe Siboga plankton. It appears in none of the other plankton lists.This species is fairly common in the temperate Atlantic, and thefirst record from the Pacific is established here.PAREUCHAETA RASA FarranPlate 15, Figures 186-188Pareuchaeta rasa Farran, British Antarctic (Terra Nova) Exped., 1910, Zool.,Crustacea, vol. 8, No. 3, p. 240, fig. 10, 1929.Stations 4634 ; 4652. Farran's types were all females. The malesare here described for the first time, as both sexes were obtained in theAlbatross plankton.Female.?Metasome rather regularly elliptical, two and a thirdtimes as long as wide ; rostrum slender, accuminate, and inclined for-ward ; posterior corners of fused fourth-fifth segment evenly rounded,with tufts of short hairs. Urosome a little more than a third as longas the metasome ; genital segment symmetrical, with the ventral pro-tuberance attached in front of the center. On each side of the genitalopening is a lateral flap extending backward, the one on the left sideslightly weaker than the one on the right, with no visible structuresbetween them. The first two abdominal segments are about the samelength, the anal segment less than half as long. Caudal rami twice aslong as wide, the appendicular setae very long and strongly geniculate.First antennae reaching the center of the genital segment ; exopodof second antenna longer than endopod. Exopod of first leg 2-seg-mented, basal segment with a single outer spine and no trace offusion. Endopod of second leg slender and as long as the two basal
284 BULLETIN 100, UNITED STATES NATIONAL MUSEUMexopod segments combined. Terminal segment of second exopodwith three outer spines, the middle twice the size of the others, thenotch inside of its base considerably deeper than in Farran's figure.Total length 5.51 mm. Metasome 4.20 mm. long, 1.65 mm. wide.Male.?Slightly smaller than the female but with similar propor-tions; the antennae, mouth parts, and first four pairs of legs alsosimilar. The fifth legs show distinctive characters; the second basi-pod of the right leg is considerably swollen and one-half longer thanwide. The endopod is slender and as long as the basal exopod seg-ment; the terminal exopod segment is a fourth shorter than thebasal segment and well curved. The second basipod of the left legis cylindrical and reaches the center of the right endopod. Theleft endopod is almost a third as long as the proximal exopod seg-ment and is enlarged at its tip. The terminal armature of the endsegment of the exopod is shown in figure 188, with the three raminearly as long as the segment itself. Total length 5.25 mm. Meta-some 4 mm. long, 1.33 mm wide.Allotype.?U.S.N.M. No. 67261 (without station data).Remarks.?This species most resembles sarsi but is little more thanhalf as large, and the details of the genital protuberance in the femaleand of the fifth legs in the male are quite different (cf . fig. 250)
.
PAREUCHAETA SARSI (Farran)Plate 19, Figure 250Euchaeta sarsi Farran, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 41, pi. 3,figs. 15, 16, 190S.Stations 4671 ; 4679 ; 4701 ; 4753 ; 4760 ; 4800 ; 5063 ; 5287. Identifiedby Sars from 4 of these Albatross stations and from five Monaco sta-tions and obtained by Scott at one Siboga station.PAREUCHAETA SCOTTI (Farran)Euchaeta seotti Farran, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 42, pi. 3,figs. 11, 12, 1908.Stations 4655 ; 5287. Identified by Sars from the first of these Alba-tross stations off the Peruvian coast and from four Monaco stations.As the latter were all in the northern Atlantic, these Albatross speci-mens constitute a first record from the Pacific.PAREUCHAETA TONSA (Giesbrecht)Euchaeta tonsa Giesbrecht, Bull. Mus. Comp. Zool., vol. 25, No. 12, p. 251, pi. 4,figs. 9, 10, 1895.Stations 2 ; 18 ; 76-78 ; 80 ; 2859 ; 4683 ; 4685 ; 4687 ; 4703 ; 4705 ; 4730
;
4757; 5120; 5185; 5263; 5489. Identified by Sars at 9 of these Alba-
COPEPODS GATHERED BY ALBATROSS?WILSON 285tross stations and at 34 Monaco stations and found in the Siboga andCarnegie planktons. PAREUCHAETA TUMIDULA (Sars)Euchaeta tumidula Sars, Bull. Mus. OcSauogr. Monaco, No. 26, p. 15, 1905a.Pareuchaeta tumidula Sars, Res. camp. sci. Albert de Monaco, No. 69, p. 119, pi. 32,figs. 15-20, 1925.Stations 27; 4667; 4679; 5120; 5287; 5319. Identified by Sars atthe first three Albatross and at five Monaco stations, and present in theCarnegie list. Genus PAROITHONA Farran, 1908PAROITHONA PARVULA FarranParoithona parvula Farran, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 89,pi. 10, figs. 1-13, 1908.Stations 5382 ; 5437. Established by Farran upon females taken indeep water off the west coast of Ireland and described in Sars (1918,p. 208) Crustacea of Norway. Not found in any of the plankton lists.The male still remains unknown.Genus PENNELLA Oken, 1815PENNELLA sp.Station 5287. A single copepodid larva of some species of Pennellawas taken in the tow at this station in the China Sea. A similar larvaappears in the Challenger plankton and was named Hessella cylindri-cum by Brady. It is not, however, a matured adult but only a larva,and it swims about in the plankton until it finds a host to which itattaches itself and develops into some species of the parasitic genusPennella. The larva cannot yet be specifically differentiated.Genus PHAENNA Glaus, 1863PHAENNA SPINIFERA ClausPhaenna spinifera Claus, Die freilebendeu Copepoden, p. 189, pi. 31, figs. 1-7,1863.Stations 13 ; 16 ; 39 ; 48 ; 52 ; 54 ; 59 ; 65 ; 71 ; 75 ; 77 ; 3799 ; 3800 ; 3803
;
3829; 3878; 3901; 3930; 3932; 3980; 4009; 4010; 4011; 4037; 4634;4638; 4646; 4652; 4665; 4719; 4926; 5102; 5129; 5134; 5155; 5185;5186; 5190; 5225; 5229; 5231; 5233; 5240; 5246; 5263; 5319; 5320;5340; 5437; 5553; 5578; Fiji Islands; Charles Island, Galapagos.Identified by Sars from eight of these Albatross stations and from nineMonaco stations, appearing also in all the Siboga and Carnegieplanktons.
286 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGenus PHYLLOPUS Brady, 1883PHYLLOPUS AEQUALIS SarsPlate 27, Figures 394-396PhylTopus aequalis Sars, Bull. Inst. Oceanogr. Monaco, No. 377, p. 20, 1920; Res.camp. sci. Albert de Monaco, No. 69, p. 344, pi. 124, figs. 7-9, 1925.Stations 5185; 5437. Established by Sars upon a single femaletaken in the Monaco plankton west of Gibraltar. Up to the presenttime no second specimen had appeared, and so the species is not foundin any of the lists. Both sexes were captured at these Albatrosxstations and the male is here described for the first time.Female.?The chief characteristics of the female are the wide andsomewhat flattened frontal margin between the bases of the first an-tennae ; the very short and perfectly symmetrical posterior corners ofthe metasome ; the perfect symmetry of the genital segment, which isfully as wide as long, with convex lateral margins ; and the shortnessof the first antennae, which scarcely reach the anterior margin of thefourth segment. The segments of the fifth legs are comparativelyelongate and narrow, and the setae on the first and third segmentsare exceptionally long. Total length 3 mm. Metasome 2.35 mm. long,1 mm. wide.Male.?Metasome elliptical, not narrowed so much posteriorly asin the female, the posterior corners slightly longer and symmetrical.Urosome 5-segmented, all the segments approximately the same lengthand width, the anal segment reentrant posteriorly. Caudal raminearly twice as long as wide and divergent ; each with five setae, theouter one near the center of the lateral margin, the second inner onethicker and much longer than the others.The left antenna is geniculate, the terminal portion made up ofthree segments, which together with the five segments in front of theflexure are elongate, narrow, and somewhat flattened. None of themare armed with setae except the two at the tip of the terminal portion.The rest of the antenna is gradually widened toward the base, andthe segments are very short and indistinct with two or three longsetae and numerous short ones. The fifth legs are shown in figure 395and are considerably different from those in other species. Theendopod of the left foot is quite small and only subtriangular inshape. The proximal segment of the exopod has a long process atthe outer distal corner tipped with a spine. The terminal segmentis stout and elongate with a short terminal spine and a longer sub-terminal one, curved like a sickle. The right basipod carries the rudi-ment of an endopod and a 2-segmented exopod, whose end segmentis considerably flattened and somewhat cochleate. Total length 2.90mm. Metasome 2 mm. long, 1 mm. wide.
COPEPODS GATHERED BY ALBATROSS?WILSON 287Allotype male.?U.S.N.M. No. 74128; station 5185, latitude10?05'45" N., longitude 122?18'30" E., between Panay and Negros.Remarks.?In his description of the female Sars noted the similarityof the two species aequalis and giesbrechti but decided they were dis-tinct species. As the Albatross plankton contained males of boththese species, Sars' contention is proved to be correct.PHYLLOPUS BIDENTATUS BradyPhyllopus bidentatus Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 78, pi. 5, figs. 7-16, 1883.Stations 2; 26; 4609; 4663-4665; 4676; 4679; 4683; 4685; 4687;4695; 4703; 4705; 4717; 4719; 4722; 4740; 5185. Identified by Sarsat 18 of these 19 Albatross stations but not appearing in the Monacoplankton. Both sexes were found in the Siboga plankton and weredescribed by Scott. PHYLLOPUS GIESBRECHTI A. ScottPlate 27, Figubes 397-399Phyllopus giesbrechti A. Scott, Copepoda of the Si&Of/a-Expedition, monogr. 29a,pt. 1, p. 149, pi. 46, figs. 1-6, 1909.Station 5185. This species was established by A. Scott in the /Sibogaplankton upon three females from the Banda Sea. He consideredthem specifically distinct from bidentatus established by Brady in theChallenger report. As the species does not appear in any of the otherlists, these Albatross specimens constitute the first record since theoriginal discovery. Better than that, they include the male sex aswell as the female and so permit the completion of the specific diag-nosis, the male being described here for the first time.Female.?Scott fully described and figured the female, citing thefollowing distinguishing characters: The posterior corners of themetasome are practically symmetrical and do not reach the center ofthe genital segment. In a lateral view these corners are narrowlyrounded and not pointed. The genital segment is longer than thefirst two abdominal segments combined and the caudal rami are twiceas long as wide. Total length 2.80 mm.Male.?Metasome elliptical, a little more than twice as long as wideand narrowed more posteriorly than anteriorly. Posterior cornerssymmetrical, the terminal spines curved inward, with a distinct sinusat the base on the inside, and overlapping the genital segment but little.Urosome 5-segmented, two-fifths as long as the metasome, and nearlyuniform in width. Genital segment with parallel sides and a littlelonger than any of the other segments. First three abdominal seg-
288 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
merits equal in length; anal segment slightly longer and wideneddistally. Caudal rami twice as long as wide and parallel, each withfive setae, the outer one at the center of the outer margin.First antennae as long as the metasome, the right one very slender,the left one stouter and geniculate, the terminal portion 3-segmented.Second antennae, mouth parts, and first four pairs of legs like those ofthe female, fifth legs distinctive. The left basipod carries a triangularendopod attached by its apex, the other two angles rounded. Theproximal segment of the exopod projects outside the base of the distalsegment and is tipped with a spine. The end segment is much swollenand tipped with a stout spine, and the accessory movable spine is long,slender, and nearly straight. The right leg has no endopod, and thedistal segment of the exopod is flattened into a lamina bent nearly atright angles. The part beyond the bend is boot-shaped, as in helgae,but carries on the heel a stout process tipped with a minute spine.Total length 2.60 mm. Metasome 1.90 mm. long, 0.90 mm. wide.Allotype.?U.S.N.M. No. 74129; station 5185, latitude 10?05'45" N.,longitude 122?18'30" E., between Panay and Negros.Remarks.?Station 5185, where these Albatross specimens wereobtained, is between Panay and Negros Islands not far from the BandaSea where Scott's types were obtained. Referring to the comparisonof this species with aequalis, mentioned under the latter species, wehave here two females enough alike to make their separation some-what difficult and two males exhibiting enough dissimilarity to maketheir separation imperative. Evidently this is an instance whereboth sexes are necessary to make satisfactory specific diagnoses.PHYLLOPUS HELGAE FarranPhyllopvs helgae Farran, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 83, pi. 9,figs. 5, 6, 1908.Stations 5120; 5320. Farran's type specimens were obtained in thedeep Atlantic off the west coast of Ireland. The species was foundalso in the Monaco, Siboga, and Carnegie planktons.PHYLLOPUS IMPAR FarranPhyllopus impar Farran, Fisheries Ireland, Sci. Invest, for 1906, pt. 2, p. 84, pi. 9,figs. 1-4, 1908.Stations 4664 ; 5120. Established by Farran upon female specimensfrom the northern Atlantic, and afterward both sexes were describedin the Siboga plankton and in the Monaco plankton. The Monacospecimens came from the northern Atlantic as did the types, but theSiboga specimens came from the Malay Archipelago in the Pacific.
COPEPODS GATHERED BY ALBATROSS?WILSON 289PHYLLOPUS MUTICUS SarsPlate 15, Figure 189Phyllopus muticus Sabs, Bull. Inst Oceanogr. Monaco, No. 101, p. 26, 1907; Res.camp. sci. Albert de Monaco, No. 69, p. 345, pi. 124, figs. 10-16, 1925.Station 4687. Identified by Sars at this Albatross station betweenCallao, Peru, and Easter Island and at three Monaco stations but notfound in the Siboga or Carnegie planktons.Genus PLEUROMAMMA Giesbrecht, 1898PLEUROMAMMA ABDOMINALIS (Lubbock)Diaptomus abdominalis Lubbock, Trans. Ent. Soc. London, new ser., vol. 4, p. 28,pi. 10, figs. 1-8, 1856.Stations 2; 27; 34; 49; 60; 65; 236; 2859; 3799; 3867; 3878; 39014574; 4580; 4590; 4619; 4635; 4638; 4640; 4644; 4652; 4655; 46574681 ; 4689 ; 4700 ; 4707 ; 4717 ; 4719 ; 4721 ; 4730 ; 4734 ; 4740 ; 4757 ; 47584926 ; 4952 ; 5120 ; 5129 ; 5133 ; 5180 ; 5185 ; 5186 ; 5190 ; 5196 ; 5224 ; 52275231; 5233; 5234; 5263; 5319; 5422; 5437; 5451. Identified by Sarsfrom 22 of these Albatross and from 71 Monaco stations and presentalso in the Challenger, /Siboga, and Carnegie planktons. The speciesis well distributed and under favorable conditions often congregatesin large numbers. PLEUROMAMMA BOREALIS (F. Dahl)Pleuromma boreale F. Dahl, Zool. Anz., vol. 16, No. 415, p. 105, 1893.Stations 19 ; 5263. Established by F. Dahl upon specimens from thenorthern Atlantic and not appearing in any of the plankton reports.PLEUROMAMMA GRACILIS (Claus)Pleuromma gracile Claus, Die freilebenden Copepoden, p. 197, pi. 5, figs. 7-11,1863.Stations 1; 3; 6-8; 11; 13; 14; 16; 18; 19; 21-25; 27; 33; 34; 36; 4142; 48; 63; 65-67; 77; 79; 2195; 3765; 3799; 3800; 3867; 3878; 39014574; 4640; 4644; 4646; 4652; 4685; 4700; 4707-4710; 4719; 47224728; 4730; 4757; 4760; 4766; 4793; 4806; 4926; 5110; 5120; 51255129; 5180; 5185; 5186; 5190; 5196; 5223; 5224; 5227; 5229; 52315233; 5234; 5240; 5246; 5263; 5422; 5424; 5434; 5437; 5451; Sabtan,Nasugbu Bay, and Luzon Island, Philippine Islands. Identified bySars from 35 of these Albatross stations and from 39 Monaco sta-tions; also present in the Siboga and Carnegie planktons.PLEUROMAMMA PISEKI FarranPlate 27, Figubes 400, 401Pleuromamma piseki Fabean, British Antarctic (Terra Nova) Exped., 1910,Zool., vol. 8, No. 3, p. 261, figs. 23, 24, 1929.
290 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMStations 3799 ; 3878 ; 4644 ; 5110 ; 5185 ; 5196 ; 5227 ; 5229 ; 5234 ; 5246
;
5263; 5320; Nasugbu Bay and Luzon Island, Philippine Islands.Established by Farran upon specimens from the north temperate andtropical Atlantic and not found in any of the plankton lists. InSteuer's revision of the genus Pleuromamma (1932, p. 34) , P. piseJci isnot admitted as a separate species but is made a variety of gracilis.However, the genital segment is indented on the left side, there is alarge pigmented area around the genital pore, and the fifth legs showdifferences in both sexes.PLEUROMAMMA QUADRUNGULATA (F. Dahl)Pleuromma quadrungulatum F. Dahl, Zool. Anz., vol. 16 (1894), No. 415, p.105, 1893.Stations 4760 ; 5246 ; 5263 ; 5437. Established upon specimens fromthe tropical Atlantic and appearing in the Carnegie plankton.PLEUROMAMMA ROBUSTA (F. Dahl)Pleuromma robustum F. Dahl, Zool. Anz., vol. 16 (1894), No. 415, p. 105, 1893.Stations 18; 63; 2195; 3799; 4574; 4583; 4585; 4587; 4594; 4598;4627; 4652; 4681; 4700; 4705; 4717; 4719; 4785; 5120; 5129; 5185;5186 ; 5196 ; 5231 ; 5233 ; 5246 ; 5320 ; 5437. Identified by Sars from 9of these Albatross stations and 22 Monaco stations, and present in theCarnegie list. PLEUROMAMMA XIPHIAS (Giesbrecht)Pleuromma xiphias Giesbkecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2,p. 25, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 347, 357,pi. 32, fig. 14 ; pi. 33, figs. 42, 45, 50, 1892.Stations 1 ; 2 ; 18 ; 60 ; 222 ; 3712 ; 3799 ; 3800 ; 3878 ; 4611 ; 4619 ; 46374681; 4685; 4687; 4689; 4691; 4695; 4700; 4703; 4705; 4707; 47094715; 4717; 4719; 4721; 4722; 4724; 4730; 4732; 4734; 4740; 47424743; 4746; 4757; 4766; 4926; 4952; 5063; 5120; 5125; 5129; 51555179; 5180; 5185; 5186; 5190; 5196; 5223; 5224; 5227-5229; 52315233; 5246; 5263; 5287; 5320; 5422; 5437; 5451; 5633; Sabtan Island,Philippine Islands. Identified by Sars at 30 of these Albatross sta-tions and at 64 Monaco stations ; also found in the Siboga and Carnegieplanktons. Genus PONTELLA Dana, 1846PONTELLA ATLANTICA (Milne Edwards)Plate 15, Figures 190-191 ; Plate 19, Figube 249Pontia atlantica Milne Edwards, Hist. Nat. Crust., vol. 3, p. 420, pi. 39, 1840.Stations 139; 3807; 3822; 3864; 3908; 3981; 4010; 4190; 4574; 4588;4611 ; 4615 ; 4617 ; 4640 ; 4667 ; 4680 ; 4692 ; 4731 ; 4952 ; 5223. Identifiedby Sars from six of these Albatross stations and from nine Monaco sta-
COPEPODS GATHERED BY ALBATROSS?WILSON 291tions; also found in the Carnegie plankton. The urosome is veryasymmetrical in the female and covered with dorsal plates twisted tothe right and ending in long acuminate spines on the right side. Thespine on the right posterior corner of the metasome is very broad andbifid at its tip. PONTELLA CF.RAMI A. ScottPlate 27, Figures 402, 403Pontella ccrami A. Scott, Copepoda of the St&o^a-Expedition, monogr. 29a, pt.1, p. 163, pi. 53, figs. 8-15, 1909.Caldera Bay anchorage, west coast of Mindanao, Philippine Islands.Established by Scott upon two males taken in the Banda Sea in avertical haul from 1,900 meters to the surface. At this anchorage inthe Sulu Sea the net was set at the surface in the tidal current.Male.?Head narrowed to a blunt point over the rostrum and armedwith lateral hooks ; fifth segment well separated from the fourth, withspines at the posterior corners that nearly reach the distal margin ofthe genital segment. The genital segment is dilated at its posteriorend, and the second abdominal segment is longer than the third andfourth combined. The caudal rami are also as long as these last twoabdominal segments together. In the right fifth leg the hand of thechela is rather slender but strongly muscled; the thumb is long andslender and curved inward; the movable finger is stout and morestrongly curved inward than the thumb. At the center of the innermargin of the hand is a short process terminating in a lanceolate spine,with a slender spine at its base on the side next to the thumb. The endsegment of the left leg is tipped with three spines and has a pad alongits inner margin fringed with hairs.Remarks.?As the female of this species is still unknown, it is ofcourse possible that these specimens may ultimately prove to be themales of some species now founded upon females alone. Until that canbe proved, however, Scott's species remains valid.PONTELLA CHIERCHIAE GiesbrechtPlate 28, Figures 408, 409Pontella chiercliiae Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2,p. 28, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 462, 478,pi. 24, figs. 12, 27, 38 ; pi. 40, figs. 19, 22, 26, 35, 1892.Stations 4607; 5223; 5226. Giesbrecht's type specimens came fromthe vicinity of Hong Kong, and these are the first to be reported sincethe original discovery. Albatross stations 5223 and 5226 are just westof Luzon in the China Sea, very near the type locality. The fact thatthis species does not appear in any of the plankton lists and that the843S04?50 11
292 BULLETIN 100, UNITED STATES NATIONAL MUSEUMtwo localities where it has been found are so close together suggests thatit is very limited in its distribution. As can be seen in the figure thefifth legs of the female have more spines than usual upon the exopods,while the endopods are conical and unarmed. In the right leg of themale the thumb is long and slender, while the movable finger is stout,enlarged both at its tip and at its base and between the two enlarge-ments is very sharply bent. The hand of the chela has a singleprojection on its inner margin tipped with a short spine.PONTELLA DANAE GiesbrechtPlate 16, Figures 195-197Pontella danae Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2, p. 28,1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 461, 477, pi. 24,figs. 32, 33, 35, 40 ; pi. 40, figs. 16, 20, 1892.Stations 9; 27; 80; 31; 236; 3412; 3683; 3912; 4592; 4611; 4615;4619; 4635; 4640; 4650; 4659; 4685; 4714; 4716; 4741; 4952; 5319;H. 3786. Identified by Sars from 15 of these Albatross stations; notfound in the Monaco plankton; present at only a single station in theSiboga plankton and at two stations in the Carnegie plankton. It canbe easily recognized by the great dissimilarity in the caudal rami, theright one being four times as large as the left.PONTELLA DENTICAUDA A. ScottPontella denticauda A. Scott, Oopepoda of the yS'i&Ofifa-Bspedition, monogr. 29a,pt. 1, p. 161, pi. 52, figs. 1-12, 1909.A single female was found at Caldera Bay anchorage, west coast ofMindanao, Philippine Islands. Scott had 50 specimens, including bothsexes, from the tropical Pacific a little south of the Philippines. Notfound in any of the other plankton lists.PONTELLA DIAGONALIS, new speciesPlate 28, Figures 410-413Station 5553. A single female was captured at the surface at thisstation off Jolo Island in the Philippines.Female.?Metasome elliptical, two and a half times as long as wide;base of the rostrum projecting as a rounded knob from the center ofthe forehead ; lateral hooks stout and strongly curved. Posterior endof metasome squarely truncated, with a large triangular spine at eachcorner. These spines are symmetrical, with a wide flange on the insideat the base, are acutely pointed, and reach to the posterior margin ofthe genital segment. The fifth segment is very short and imperfectlyseparated from the fourth. On the midline of the dorsal surface is alongitudinal row of dark circular spots, one at the posterior margin ofeach of the first four thoracic segments. The anterior one is the
COPEPODS GATHERED BY ALBATROSS?WILSON 293largest, and they diminish in size backward, the last one being scarcelylarger than an ordinary period mark (compare with Pontella meadii,fig. 417).Urosome one-third as long as the metasome and extremely asym-metrical. The genital segment is covered by a dorsal carapace, whichprojects backward over the abdomen and the left caudal ramus. Thiscarapace is raised into a dorsal knob at the right posterior corner ofthe genital segment, and is produced into a stout curved spine in frontof the outer margin of the right caudal ramus. The left side of thecarapace is raised into a smaller knob at the left posterior corner ofthe genital segment, and is then produced diagonally backward intoa spatulate process covering the abdomen and most of the left caudalramus. This carapace is in contact with the dorsal surface of thegenital segment but is raised above the abdomen and caudal ramus.The abdomen is 1-segmented and almost entirely concealed in dorsalview. The caudal rami are very unequal, the right one nearly twiceas large as the left and pointed at the tip. Each carries five setae,three on the outer margin, one on the inner margin, and one terminal.The first antennae reach only to the center of the third thoracic seg-ment and are rather slender. The fifth legs are exceptionally long,reaching to the tips of the caudal rami but are slender. The exopodis four times as long as the endopod and curved inward, with threesmall spines on the outer margin and a large acuminate terminalspine. The endopod is bifurcate at its tip for more than a third ofits length. Total length 4 mm. Metasome 3.15 mm. long, 1.30 mm.wide.Type.?U.S.N.M. No. 74130; station 5553, latitude 5?51' N., longi-tude 120?46'30" E., off Jolo, Philippine Islands.Remarks.?The urosome shows a marked diagonal asymmetry tothe left, whence the specific name. The rostrum has a large outerand inner eye, and the fifth legs are exceptionally long for a copepodof this size. PONTELLA FERA DanaPlate 28, Figure 414Pontella fera Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 34, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea,p. 1169, 1853 ; pi. 82, fig. 5 a-1, 1855.Stations 173; 236; 3878; 4011; 5223; 5240; 5246; 5299; 5415; 5601.Established by Dana upon specimens from north of the SamoanIslands and appearing only in the Siboga plankton list. It has beenreported, however, from the tropical Pacific and Indian Oceans byWolfenden (1905a, p. 1021) and Sewell (1914, p. 237; 1932, p. 377).Dana's female specimens belong to this species, but the male whosefifth leg is shown on Dana's plate 82, fig. 5, 1, is the male of tenuiremis
294 BULLETIN 100, UNITED STATES NATIONAL MUSEUMand not of /era. The fifth legs of a fera male are seen in figure 414and may be identified by the three fingerlike processes on the hand ofthe chela of the right leg. One of these is near the base of themovable finger, and the other two are at the opposite end of thehand, and when the chela is closed the finger shuts down betweenthem. These last two are unequal in length ; the longer one is bluntat its tip and transversely wrinkled, the shorter one smooth and acute.Behind these two processes on what might be termed the wrist of thehand is a circular lamina projecting outward and sidewise.PONTELLA GRACILIS, new speciesPlate 27, Figures 404-407Station 5223. Five females were found in the plankton at thisstation between the islands of Luzon and Marinduque in the Philip-pines in a surface tow.Female.?Metasome elongate elliptical, three and a half times aslong as wide and narrowed but very little at each end. Head conicallyrounded in front, with well-defined lateral hooks ; rostrum very largefor so small a copepod and bifurcate to the very base, the branchesacuminate. Fourth and fifth segments fused, the posterior cornersbluntly rounded and reaching the center of the genital segment. Uro-some half as wide and, without the caudal rami, less than a thirdas long as the metasome and 3-segmented. The anal segment is thelongest and the middle segment the shortest, and all three are aboutthe same width. The caudal rami are twice as long as wide but aremuch shorter than the anal segment, and are somewhat divergent.The first antennae do not quite reach the urosome and are ratherslender and sparsely setose. The endopod of the second antenna is3-segmented, and the exopod just reaches its tip. The fifth legs areunlike those of other species in the genus ; the two basipod segmentsare much swollen, the second one diagonally cut at the inner cornerfor the attachment of the endopod. The latter is conical, half as longas the exopod, and bluntly rounded at its tip without bifurcation.The exopod is twice the width of the endopod at its base and is nar-rowed distally and obliquely truncated at its tip, with a short acutespine at each corner. Total length 2 mm. Metasome 1.70 mm. long.Types.?U.S.N.M. No. 74131 ; station 5223, latitude 13?36' N., longi-tude 121?25'30" E., off Santa Cruz, Philippine Islands.Remarks.?This species may be recognized by its minute size, itsshort first antennae, and the details of the fifth legs.PONTELLA LOBIANCOI (Canu)Plate 28, Figubes 415-^16Pontellina lobiancoi Canu, Bull. Sci. France et Belgique, vol. 19, p. 101, pi. 8,figs. 7, 8 ; pi. 9, 18S8.
COPEPODS GATHERED BY ALBATROSS?WILSON 295Stations 14 ; 2396 ; 4615 ; 4692 ; 4952. Identified by Sars from threeof these Albatross stations and one Monaco station and otherwisepresent only in the Carnegie plankton. Both sexes were briefly de-scribed and excellently figured by A. Scott (1906, p. 50). Figures ofthe fifth legs in both sexes by means of which the species can be easilyidentified are here reproduced.PONTELLA MEADII WheelerPlate 28, Figures 417-419Pontella meadii Wheeleb, Bull. U. S. Fish Comm., vol. 19 (for 1899), p. 180,fig. 17, 1901.Station 2396. A single female was obtained from this station in theGulf of Mexico. Originally established by Wheeler upon specimensobtained in Woods Hole Harbor, it has been found also in ChesapeakeBay. When alive or freshly preserved there is a row of dark blotches,one on each segment, along the dorsal midline of the metasome. These,in connection with the shortness of the urosome, will ordinarily iden-tify the species. However, the characteristic spots slowly fade awayin preserved material. The details of the fifth legs in both sexes mustthen be called upon to furnish the specific characters, especially theright fifth leg of the male, as seen in figure 419. In United StatesNational Museum Bulletin 158 (Wilson, 1932, p. 154) it was said:
"This seems to be a southern form that appears within the presentarea [Woods Hole] during the summer." The discovery of the speciesin Chesapeake Bay and now in the Gulf of Mexico supports such asuggestion. PONTELLA PRINCEPS DanaPontella princeps Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 34, 1849
;
United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1168, 1853 ; pi. 82, fig. 4 a-c, 1855.Stations 3927 ; 4190. Originally established by Dana in the Wilkesplankton upon specimens from the tropical Pacific southwest ofTongatabu ; later recorded in the Siboga and Carnegie plankton.PONTELLA PULVINATA, new speciesPlate 16, Figures 198-204 ; Plate 19, Figure 245 ; Plate 35, Figure 532Sixty specimens, including both sexes, were captured in a surfacetow off Eobben Island in the Okhotsk Sea at an unnumbered station.Female.?Metasome elliptical, three times as long as wide, stronglynarrowed anteriorly; head bordered on each side by a wide membranecarrying a lateral hook. The fourth and fifth segments are fused,and the posterior corners are produced into thick fleshy triangularpads, suggesting the specific name. These pads are assymetrical, the
296 BULLETIN 100, UNITED STATES NATIONAL MUSEUMone on the right wider and longer than the one on the left, nearlyreaching the posterior margin of the genital segment. The posteriorends of the pads are broadly rounded with a minute spine at the verytip, which is easily overlooked.The urosome is 3-segmented and very asymmetrical ; the dorsal sur-face of the genital segment is produced to the left and backward intoa curved spine, which nearly reaches the tip of the caudal ramus. Onthe right side of the segment and nearer the posterior margin is ashort blunt process curved over ventrally, and usually concealed indorsal view by the right pad at the corner of the thorax. This padand the genital segment were separated under pressure, bringing thisprocess into view dorsally, as in figure 532. On the left side is arounded process projecting to the left and covered in dorsal view bythe left pad at the corner of the metasome. Both pads were removedfor the drawing in figure 245. The basal abdominal segment is muchlarger than the anal segment, with an angular process at the centerof the right side and a rounded process at the anterior corner of theleft side. The anal segment is about half as long and wide as thebasal segment, and its dorsal surface is produced backward over thebases of the caudal rami in a 3-lobed process which reaches thecenter of the rami. The latter are longer than wide and the left oneis a little larger than the right.The first antennae reach the center of the last thoracic segment andare very slender but moderately setose. The exopod of the secondantenna is a little shorter than the endopod and considerably narrower.The chewing blade of the mandible has a long conical tooth at theouter corner, then a shorter spherical tooth tipped with a spine, fol-lowed by three triangular teeth, the first two bifid at the tip. The palphas an exceptionally long basal portion and two short rami, each madeup of a single segment. The endopod of the first leg is 3-segmented, ofthe second, third and fourth legs 2-segmented. The fifth legs areslender, the exopods twice as long as the endopods and each ramus1-segmented. The endopods are bifurcate at their tips, the innerbranch longer than the outer. Each exopod has three spines at itstip, the middle one the longest, and a small spine on the outer marginnear the center. Total length 3.75 mm. Metasome, excluding pads, 3mm. long, 1.12 mm. wide.Male.?Metasome proportionally narrower than in the female ; headwith similar flanges on each side armed with lateral hooks. Posteriorcorners of the last thoracic segment very asymmetrical, on the leftside a pad similar to those in the female, on the right side a long andslender spine reaching back to the center of the antepenultimate seg-ment of the abdomen. The genital segment is considerably enlargedand is produced outward on the right side at the posterior corner intoa short process cleft at its tip. The abdomen is 4-segmented and nar-
COPEPODS GATHERED BY ALBATROSS?WILSON 297rower than the genital segment, the first two segments of the samelength, the third one three-fifths, the anal segment two-fifths as long.The caudal rami are twice as long as wide and symmetrical.The first antennae are longer than in the female and reachthe genital segment. The right one is geniculate, and four of its mid-dle segments, beginning with the second one behind the hinge, areenlarged to twice the diameter of the others and the first two have acrest fringed with small teeth on their outer margin. The secondantennae, mouth parts, and first four pairs of legs are like those of thefemale. The fifth legs are shown in figure 204 ; each is uniramose and4-segmented. The terminal segment of the right leg is transformedinto a stout spherical chela without spines or processes. The terminalsegment of the left leg is tipped with a slender, curved claw and astout spine. The second segment of this leg carries at its distal enda small spine which might be regarded as the rudiment of an endopod.Total length 2.90 mm. Metasome 2.40 mm. long, 0.76 mm. wide.Types.?-U. S.N.M. No. 70747, off Robben Island, Okhotsk Sea.Remarks.?The complicated asymmetry of the urosome in thefemale and the last segment of the metasome in the male are sufficientto identify this new species. It appears to be local in its distribution.PONTELLA SECURIFER BradyPlate 17, Figures 207-214; Plate 28, Figures 421-425Pontella securifer Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23, Cope-poda, p. 96, pi. 45, figs. 1-9, 1883.Stations 3; 5; 13; 16; 19; 31; 223; 3829; 3930; 3932; 3980; 3981;4009; 4010; 4037; 4190; 4712; 4952; 5133; 5155. Figured and verybriefly described in 8 lines by Brady in his Challenger report from afew specimens from the mid-Pacific; again figured and briefly de-scribed, 4 lines only, by Giesbrecht in his Naples monograph. Laterlisted from 13 Siboga, 2 Monaco, and 4 Carnegie stations withoutfurther description or figures. A number of females and males werefound at these Albatross stations, of which the first 6 were identifiedby Sars, who also made some excellent pencil drawings of them. AsBrady's and Giesbrecht's descriptions and figures, the only ones everpublished, are not only very inadequate but also misleading in somedetails, Sars' figures are here reproduced with full descriptions ofboth sexes.Female.?Metasome elliptical, four times as long as wide and butlittle narrowed at each end. Head more or less fused with the firstsegment, the lateral hooks small and nearly straight. Dorsal eyeswell separated, the two rostral lenses with their inner walls in contactand swollen into a large sphere. Posterior corners of metasome pro-duced into triangular acute spines, the one on the left much larger
298 BULLETIN 100, UNITED STATES NATIONAL MUSEUMthan the one on the right and reaching the center of the caudal rami.Urosome nearly half as wide as the metasome but less than a fifthas long and 2-segmented. Genital segment much larger than the analsegment and covered with an irregular dorsal carapace, which iswidened posteriorly and extends backward to cover all the anal seg-ment and more or less of the caudal rami. In both Brady's andGiesbrecht's figures this dorsal carapace is widened but little pos-teriorly, and is armed on the dorsal surface with several processes andspines arranged irregularly, as seen in figure 422, and much of bothcaudal rami is visible dorsally. This was true of only two of theAlbatross specimens; in all the others the entire left ramus was cov-ered and most of the right one, and in three specimens nothing couldbe seen of the rami from above. Again the posterior margin of thiscarapace is not uniform but varies considerably. In most of thespecimens it was like that shown in figure 207 or the slight variationseen in figure 209, but in two females it was shaped as in figure 421,and in three others it had the scalloped margin seen in figure 423.The right caudal ramus is twice as large as the left and each is armedwith five plumose setae.The first antennae are rather slender and reach the middle of thethird thoracic segment. The exopod of the second antenna is slenderand considerably shorter than the endopod. The maxillipeds arelarge and stout and armed with strong setae. The endopods of thefirst legs are made up of three segments, the first with one, the secondwith two, and the third with five inner setae. Each ramus of thefifth leg is 1-segmented, the exopod four times as long as the endopod,strongly curved inward, with four small spines on the convex marginand acuminate at the tip. The endopod is bifurcate for about one-third of its length and attached at an angle to the inner distal cornerof the basipod. Total length 4.25 to 4.50 mm. Metasome, includingthe spines at the posterior comers, 4 mm. long, 0.90 mm. wide.Male.?Metasome similar to that of the female but narrower, morepointed anteriorly, and with nearly symmetrical spines on the pos-terior corners, reaching the posterior margin of the genital segment.Head separated from the first segment, its lateral hooks longer thanthose of the female and curved. Urosome less than a fourth as wideas the metasome and 5-segmented ; Brady's statement that it is 3-seg-mented is erroneous; it is perfectly symmetrical in strong contrastto the very irregular urosome of the female. The caudal rami arealso symmetrical, more than three times as long as wide, and slightlycurved, each with five setae, one of which is sometimes lengthened.The grasping (right) antenna is shown in figure 212 and corre-sponds to those figured by Brady and Giesbrecht. The other ap-pendages are like those of the female except, of course, the fifth legs.In the chela of the right fifth lee the movable finger is slender and
COPEPODS GATHERED BY ALBATROSS?WILSON 299bent into a half circle, and the thumb is short, straight, and blunt.Inside of the thumb is a longer curved process, transversely ridged,then an acute spine and a hemispherical process. The end segmentof the left leg is tipped with two equal spines, with three other spinesand long rows of hairs on the surface. The fifth legs of each of the35 males were apparently like all the others. Total length 4.10 mm.Metasome 3.33 mm. long, 0.83 mm. wide.Remarks.?The female of this species shows a great deal of varia-tion, and there might be an inclination to create several varieties. Butsince the males do not show any tendency toward variation it seemsbetter to keep them all together in a single undivided species. Afully developed male and two females have been given U.S.N.M.No. 74132, and five females showing differences in the dorsal patternof the urosome have received U.S.N.M. No. 74133. Figures 211 and214 are from immature specimens, figures 424 and 425 from fullydeveloped specimens.PONTELLA SURRECTA, new speciesPlate 29, Figures 426-430Stations 5110 ; 5262 ; Romblon Island, and Nasugbu Bay, PhilippineIslands. A single female was taken at the surface at Romblon Islandand three females and a male at Nasugbu Bay, southern Luzon. Sincethe description of this species was written, additional specimens werefound from station 5110 off southern Luzon and from station 5262off eastern Mindoro, Philippine Islands.Female.?Metasome elliptical, two and a half times as long as wide
;
head short and very wide, with curved lateral hooks. Fourth andfifth segments fused and somewhat squarely truncated posteriori}7 ,with asymmetrical spines at the corners. The one on the left side islonger and wider than the one on the right, and both are lobed onthe inside at the base and mucronate at the tip. The urosome is lessthan a fourth as wide and a fifth as long as the metasome and 2-seg-mented. The genital segment is three times as long as the anal andis turned upward at its posterior end into a dorsal protuberance aslarge as the segment itself. The protuberance is curved over backwardand twisted a little to the left entirely concealing the abdomen indorsal view. It ends in a point over the left caudal ramus, which isconsiderably smaller than the right one.The first antennae are slender and short, not reaching the centerof the third thoracic segment. The exopod of the second antennais very slender, much shorter than the endopod, and made up almostentirely of the second segment. Both rami of the first legs are 3-seg-mented, the endopod just reaching the distal end of the second exopodsegment. The first endopod segment carries one inner seta, the second
300 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMsegment two, and the third segment five. The outer spine on thesecond exopod segment is considerably enlarged. The fifth legs arenot quite symmetrical, the left one a little larger than the right. Theexopods are three times as long as the endopods, curved inward, andeach has a small spine at the center of the outer margin. The endopodis very small, its distal third bifurcate with the branches acutelypointed. Total length, including caudal rami, 3.60 mm. Metasome3 mm. long, 1.20 mm. wide.Male.?Metasome more slender than in the female, almost threetimes as long as wide, and narrowed considerably posteriorly, a smallprotuberance at the left posterior corner but only the rudiments ofone at the right corner. Urosome symmetrical, a third as long asthe metasome if the caudal rami are included and a fifth as wide,5-segmented, the anal segment very short. Caudal rami as long as thelast three abdominal segments combined and curved like parenthesismarks.First antennae as short as in the female, the right one geniculate;second antenna, mouth parts, and first four pairs of legs like thoseof the female. The fifth legs are very simple and of small size;the movable finger of the chela on the right leg is slender, nearlystraight, and armed on its inner margin with two small setae. Thehand is also slender and unarmed, while the thumb is rodlike, attachedto the very base of the hand and curved inward. The last segmentof the left leg is pointed and covered with hairs. Total length, includ-ing caudal rami, 3.40 mm. Metasome 2.67 mm. long.Types.?U.S.N.M. No. 74134; Eomblon Island, Philippine Islands.Remarks.?This species is easily recognized by the large dorsalupturn of the posterior end of the genital segment and the asymmetryof the posterior corners of the metasome. The upturn has given riseto the specific name, and the extension of the musculature to its verytip shows it to be an intrinsic part of the segment itself and not anextrinsic growth. PONTELLA TENUIREMIS GiesbrechtPlate 17, Figures 215-219; Plate 29, Figure 431Pontella tenuiremis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2,p. 28, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 462,477, pi. 24, figs. 6, 24-26 ; pi. 40, figs. 3, 4, 7, 37, 1892.Stations 15; 3822; 3878; 3898; 4010; 4011; 4642; 4669; 4683; 4685;4696; 4700; 4735; 4738; 5415; Ellice Islands; Beaver Harbor, Van-couver Island, British Columbia. Established by Giesbrecht uponspecimens taken in the tropical Pacific; subsequently reported byThompson and Scott (1903, p. 252) from Ceylon; and found welldistributed in the Pacific by the Carnegie. Dana wrongly assigned
COPEPODS GATHERED BY ALBATROSS?WILSON 301the male from the Wilkes plankton to the species fera (see remarksunder this species, p. 293). Giesbrecht's description and figures arethe only ones thus far published, and again Sars' pencil sketches differfrom them in enough details to warrant their reproduction here. Acomparison of the urosomes shown in figures 215 and 216 with thoseappearing in figures 3 and 4 of plate 40 of the Naples monograph willshow that in this genus, where the urosome is often so asymmetrical asto become grotesque or bizarre, too much specific value must not beplaced upon its exact details. They must be expected to vary in agreater degree than in those genera where normal symmetry prevails.In consequence, the details of the appendages assume greater specificvalue. PONTELLA VALIDA DanaPlate 29, Figures 432-444Pontella valida Dana, United States Exploring Expedition, 1838-1842 (Wilkes),vol. 14, pt. 2, Crustacea, p. 1171, 1853; pi. 82, fig. 6a-g, 1855.Stations 5105; 5133; 5175; 5176; 5299; 5460; Butauanan Island,Philippine Islands. In the Wilkes plankton Dana described a speciesthat he named valida, founded upon male specimens from north ofNew Zealand. From the Challenger plankton Brady described bothsexes of a new species that he called elephas. The descriptions of themale as given by Dana and Brady correspond so fully as to leave nodoubt that they are the same species. This gives Dana's specific name,valida, precedence and makes Brady's name elephas a synonym. Itwas not present in any of the other plankton lists.Claus (1893, p. 274), in a "Revision of the Pontellidae," establisheda new subgenus Ivellopsis, to include Dana's and Brady's species, al-though he acknowledged that the details of the two species were reallytoo meager to warrant such an action. Giesbrecht ( 1898, p. 139) , how-ever, upon the same meager details raised the subgenus to full genericrank, discarding Dana's species as invalid. The generic diagnosisgiven is inaccurate and contains no real generic difference, so the genuscannot be accepted. This species corresponds so closely in its generalmakeup to the other species of the genus Pontella that it must be placedin that genus. The plankton at these Albatross stations containedspecimens of both sexes in sufficient numbers to permit the completeredescription.Female.?Metasome elliptical, a little less than three times as longas wide; head triangular and rather sharply pointed in front butwithout a crest. Rostrum stout and pointed directly downward, thedistal third bifurcate without a lens. Dorsal eyes large, close together,and more or less concealed by their opaque covering. Fourth andfifth segments separated, the latter very short and squarely truncated
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with small triangular spines at the posterior corners. Urosome one-fourth as long as the metasome and one-third as wide; 3-segmented.Genital segment rectangular, one-half longer than the two abdominalsegments combined, with a rounded process on each side near thebase and a conical process near the center of the ventral surface.Brady's figure (1883, pi. 38, fig. 14) gives the idea that the lateralprocesses are below the level of the dorsal surface of the segment, buthe says nothing about it in the text. In reality they are flush withthe dorsal surface and extend only a short distance down on thelateral surface. The left process is a little larger than the right andnearer the base of the segment, and each is joined to the segment bya narrow neck. The abdomen is 2-segmented, the two segments beingabout the same length, but the anal segment is cut nearly to its baseby a triangular anal sinus. The caudal rami are somewhat divergent,enlarged distally, and more than twice as long as wide, with a fringeof hairs on their inner margins.The first antennae reach only to the center of the third thoracicsegment ; the exopod of the second antenna is shorter than the endopodand 5-segmented, with four setae. The chewing blade of the mandibleis considerably widened distally and armed at the outer corner withtwo large blunt teeth tipped with minute spines, and separated by awide and deep sinus. Then come two medium blunt teeth, tippedwith minute spines, close together, and three small sharp teeth at theinner corner with a seta on the lateral margin. The first maxilla isalmost exactly like that of Pontella lobiancoi as figured by Giesbrecht.The maxilliped is 7-segmented, the second segment as long as the firstand armed with five processes on the inner margin carrying setae.The five distal segments combined are no longer than the second seg-ment and each carries two setae on its inner margin. The exopodsof the first four pairs of legs are 3-segmented ; the end segment withtwo spines on the outer margin, one at the distal corner and a termi-nal spine as long as the segment itself, with an outer serrate flange.The endopods reach the distal end of the second exopod segment, thefirst endopod 3-segmented, the others 2-segmented. Each fifth leg isbiramose, the rami 1-segmented, the exopod three times as long as theendopod, with three small spines on its outer margin and two at thetip. The endopod is acuminate, unarmed, and undivided. Totallength 3.20 mm.Male.?Metasome elliptical and not narrowed at either end; headbroadly rounded in front and without the spine shown in Brady'sfigure. Fourth and fifth segments completely fused and smoothlyrounded at the posterior corners. Urosome made up of four segmentsof about the same length and width, the anal segment without a pos-terior sinus. Caudal rami elongate, divergent, not enlarged distally,and three times as long as wide.
COPEPODS GATHERED BY ALBATROSS?WILSON 303The right first antenna is geniculate, the terminal portion made upof four indistinctly separated segments. The enlarged middle sectionof this antenna has on its inner margin three large fingerlike processessimilar to those figured by Scott in the Siboga plankton upon theantenna of forficula. The second antenna, mouth parts, and firstfour pairs of legs correspond to those of the female. The two fifthlegs are about the same length ; the chela on the right leg is subrec-tangular, the hand turned back along the second segment. The mov-able finger at the distal end of the hand is elongate and bent abruptlyat right angles near its center, with three setae on its inner margin.The thumb at the base of the hand is rodlike, curved, and unarmed.Total length 3 mm. Metasome 2.50 mm. long, 1.10 mm. wide.Remarks.?Brady's specimens came from among the PhilippineIslands, as did these Albatross specimens. A male and female havebeen given U.S.N.M. No. 74135 as specimens of the two sexes hereunited. Genus PONTELLINA Dana, 1853PONTELLINA PLUMATA (Dana)Pontella plumata Dana, Proc. Amer. Acad. Arts and Sei., vol. 2, p. 27, 1849.Pontellina plumata Dana, United States Exploring Expedition, 1838-1842(Wilkes), vol. 14, pt. 2, Crustacea, p. 1135, 1853; pi. 79, fig. lOa-d, 1885.Stations 5; 7; 15; 24; 26; 27; 30; 65; 2195; 3799; 3829; 3878; 39013980; 4009; 4010; 4037; 4190; 4588; 4615; 4638; 4644; 4646; 46484735 ; 4743 ; 4765 ; 4952 ; 5102 ; 5133 ; 5134 ; 5155 ; 5175 ; 5180 ; 5186 ; 51905196 ; 5223 ; 5231 ; 5246 ; 5262 ; 5319 ; 5320 ; 5334 ; 5338 ; 5382 ; 5415 ; 5530H. 3782; Sabtan Island, Philippine Islands; Fiji Islands; MarshallIslands. Present in all the plankton lists and widely distributed butin limited numbers.Genus PONTELLOPSIS Brady, 1883PONTELLOPSIS ALBATROSSI, new speciesPlate 30, Figures 445-449Stations 3878 ; 4009. Two females were found at station 4009 be-tween Kauai and Oahu, Hawaiian Islands, in a surface tow. Thisspecies is also recorded by Wilson from south of Lanai Island, station3878.Female.?Metasome elliptical, two and a quarter times as long aswide; head separated from the first segment and broadly rounded infront, with a median projection over the base of the rostrum. Fourthand fifth segments separated, the latter very short and produced atits posterior corners into triangular spines reaching back to the centerof the genital segment. Urosome nearly half as wide as the metasome
304 BULLETIN 100, UNITED STATES NATIONAL MUSEUMand a third as long and 2-segmented. Genital segment twice as longas the abdomen, with a long fingerlike process at the center of theventral surface curved backward. The segment is covered with a dor-sal carapace, which has a large tooth on the left margin pointingbackward. The carapace is prolonged over the abdomen and almostreaches the posterior margin of the latter. The single abdominal seg-ment is very short, but as wide and as thick as the genital segment.The caudal rami are attached on a level with the dorsal surface ofthe abdomen, and the left one is larger than the right.The first antennae are rather slender and reach to the end of thethird thoracic segment. The exopod of the second antenna is veryslender and scarcely half as long as the endopod. There is a smallspherical eye on the ventral surface just behind the rostrum that hasa deep red color in the preserved specimens. Each ramus of the firstlegs is 3-segmented, the endopod reaching the distal end of the secondexopod segment. The outer spines on the three exopod segmentsare long, slender, and acuminate ; the terminal spine of the end segmentis very short and weak. The inner setae on the segments of theendopod number 1, 2, and 6, respectively, while those on the exopodnumber 0, 1, and 5. The fifth legs are very large for the size of thecopepod ; the endopod is bifurcate for a third of its length, the branchesrather blunt. The exopod is thickened at its base and three timesas long as the endopod, with three small spines on its outer margin, alarge one at its tip and a larger one still on the inner margin somedistance from the tip. Total length 3 mm. Metasome 2.25 mm. long,1 mm. wide.Types.?U.S.N.M. No. 74136: station 4009, latitude 21?50'30" N.,longitude 159? 15' W., Hawaiian Islands.Remarks.?This species is distinguished by its robust form, by thetooth on the left side of the dorsal carapace and the fingerlike processat the center of the ventral surface of the genital segment. It isevidently quite restricted in its distribution.PONTELLOPSIS ARMATA (Giesbrecht)Plate 30, Figures 450-452Monops armatus Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2,p. 28, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 487,496, pi. 26, figs. 19, 26, 27 ; pi. 41, figs. 46, 47, 58, 1892.Sations 16; 2937; 3822; 3878; 4009; 4010; 4190; 5129; 5175; 5186;5223 ; 5228 ; 5234 ; 5340 ; 5382 ; 5422. Established by Giesbrecht uponspecimens obtained east of the Philippine Islands and found in theAlbatross plankton well distributed among the islands themselves.Present also in the Siboga and Carnegie planktons. Giesbrecht gave
COPEPODS GATHERED BY ALBATROSS?WILSON 305
as the first characteristic of his new species, "Rumpf behaart," buthis figure (op. cit., pi. 41, fig. 47) does not show any hairs at all. Nordoes it show how near the anterior margin of the last metasome segmentis attached the curious "gekriimpten Fortsatz" on the right side. Bothof these facts are clearly shown in the figure here presented (fig. 450),and two other figures are added, one of the grasping antenna of themale and the other of the fifth legs of the female.PONTELLOPSIS BITUMIDA, new speciesPlate 30, Figures 453-457Stations 5105; 5175; 5299; Port Binanga, Luzon, Philippine Is-lands. Both sexes were found in small numbers at each of thesestations.Female.?Metasome elliptical, two and a half times as long as wide
;
head separated from the first segment and narrowly rounded in frontwith a small projection over the base of the rostrum. Posterior cor-ners of the last segment smoothly rounded and without spines orprojections. Urosome, excluding the caudal rami, a little more thana fourth as long and less than a fourth as wide as the metasome and3-segmented. The segments are about the same length and width,and the anal segment is invaginated on its posterior margin. Thecaudal rami are longer than the anal segment and curved like paren-thesis marks, each with five setae. The entire urosome is perfectlysymmetrical and without spines, projections, or armature of anysort.First antennae slender and reaching the middle urosome segmentthe exopod of the second antenna is a third as long as the endopod.The endopod of the first leg is 3-segmented and reaches the centerof the end segment of the exopod. The fifth legs are rather small,the exopods twice as long as the endopods, with four small spineson the outer margin, a large one at the tip and another large one on theinner margin. The endopod is bifurcate for about half its length, thebranches blunt and uneven in length. Total length, including cau-dal rami, 1.77 mm. Metasome 1.30 mm. long, 0.52 mm. wide.Male.?Metasome shorter and wider than in the female; headbroadly rounded in front, with a similar projection over the base ofthe rostrum. Fourth and fifth segments separated, the posteriorcorners of the latter very asymmetrical. On the left corner is ashort and blunt fingerlike process inclined outward, while on theright is a long sickle-shaped spine reaching the anal segment. Thisspine ends in an acuminate point and is barbed on the inside at its base.The urosome is 5-segmented, the first four segments about the samelength, the anal segment longer. The second and third segmentseach project on the right side in a short rounded knob, which is con-
306 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
spicuous in dorsal view, the two giving rise to the specific name. Thecaudal rami are longer than the anal segment and wider than in thefemale.The first antennae are about the same length as in the female,and the right one is geniculate. As can be seen in figure 455, thebasal segments are considerably widened and the ones next to theswollen knob are narrowed. The knob is abruptly widened, andits distal segment is toothed on the inner margin. The segmentnext to the hinge has along its inner margin a row of small teeth ; theterminal portion beyond the hinge is very slender and indistinctlysegmented. The second antennae, mouth parts, and first four pairsof legs are like those of the female. The fifth legs are exceptionallysimple; the hand of the chela on the right leg is triangular, the apexjointed to the second basipod, the finger at one basal angle, the thumbat the other. The end segment of the left leg is tipped with twosmall spines. Total length 1.54 mm. Metasome, without posteriorspine, 1.15 mm. long.Types?U.S.N.M. No. 74137 [types not returned by Dr. Wilson],Port Binanga, Luzon, Philippine Islands.Remarks.?This species can be recognized by the perfect sym-metry of the urosome in the female and the long sickle-shaped spineat the right posterior corner of the metasome in the male.PONTELLOPSIS BREVIS (Giesbrecht)Plate 30, Figure 458Monops brevis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2, p. 28,1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 487, 497, pi.26, figs. 16, 35, 36 ; pi. 41, figs. 42, 52, 70, 1892.Stations 3980; 5223; 5348. Established by Giesbrecht uponspecimens from the Abrolhos Islands off the coast of Brazil but notappearing in any of the plankton lists. These Albatross specimensare the first from the Pacific Ocean. The fifth leg of the female,shown in the figure, is quite distinctive in the relative lengths of therami and the spinules on the outer margin of the exopod. Thecaudal rami are twice as long as wide, and the genital segment has twosmall fingerlike processes at its right posterior corner.PONTELLOPSIS DIGITATA, new speciesPlate 31, Figures 463-465Station 3980. Two females were found in the plankton of this sta-tion between Honolulu and Kauai Island in the Hawaiian Islands.They cannot be referred to any of the known species.Female.?Metasome broadly elliptical, a little more than twice aslong as wide; head evenly rounded in front, with a median projection
COPEPODS GATHERED BY ALBATROSS?WILSON 307over the base of the rostrum. Fourth and fifth segments fused,squarely truncated posteriorly and produced at the corners into acutetriangular spines overlapping the genital segment. Urosome lessthan a third as long as the metasome and three-eighths as wide, veryasymmetrical and 2-segmented. Genital segment twisted to the right,widened posteriorly, protuberant ventrally, with two small bluntspines at the tip of the protuberance and covered with a stiff chitinouscarapace. At the posterior margin of the genital segment a stoutfingerlike process is attached to the dorsal surface of the carapace, sug-gesting the specific name. This finger points diagonally upward andbackward and reaches the posterior margin of the caudal rami. Itappears to belong exclusively to the carapace and is not connectedwith the segment itself; the ventral protuberance on the contrary ispart of the segment and has no connection with the carapace. Thesingle abdominal segment is much shorter than the genital segmentand is incised at the center of its posterior margin. The caudal ramiare kidney-shaped and extend diagonally along the lateral marginsof the abdomen, each with five very short setae.First antennae rather slender and very short, reaching only to thecenter of the second thoracic segment. In the second antennae theexopod is slender and much shorter than the endopod ; the mouth partsand first four pairs of legs do not show specific characters. In thefifth legs the exopod is four times as long as the endopod, with threesmall spines on the outer margin, a large terminal spine and a largerone still on the inner margin somewhat back of the tip. The distalthird of the endopod is bifurcate, the branches acuminate. There is aprotruding knob on the basipod outside the attachment of the exo-pod, and the base of the exopod is abruptly narrowed to fit around it.Total length 4.50 mm. Greatest breadth 1.40 mm.Types.?U.S.N.M. No. 74139; Station 3980; latitude 21?23' N.,longitude 158?19' W., Hawaiian Islands.Remarks.?The most conspicuous specific characters are the finger-like processes on the carapace of the genital segment and the kidney-shaped caudal rami.PONTELLOPSIS GLOBOSA, new speciesPlate 31, Figures 466-^69Station 5223. Five females were found in a surface tow at this sta-tion between Marinduque and Luzon Islands in the Philippines.Female.?Metasome stoutly elliptical, two and a half times as longas wide; head broadly rounded in front with a median projection overthe base of the rostrum. Fourth and fifth segments fused with stoutspines at the posterior corners, which reach to the center of the firstabdominal segment. Urosome short and symmetrical, a third as long843S04?50 12
308 BULLETIN 100, UNITED STATES NATIONAL MUSEUMand a fourth as wide as the metasome, 4-segmented. Genital segmentnearly as long as the first two abdominal segments combined and per-fectly symmetrical. Abdomen as wide as the genital segment, the analsegment longer than either of the first two segments and invaginateat the center of the posterior margin. Caudal rami as long as the analsegment, one-half longer than wide and slightly divergent, each withone outer and four terminal setae and an appendicular seta at theinner corner.First antennae stout at the base but quickly becoming slender andreaching the center of the second thoracic segment. Exopod of thesecond antenna only a third as long as the endopod, and its setae notreaching the distal end of the endopod. In the first four pairs of legsthe exopods are all 3-segmented, the first endopod is a single segmentwithout dividing grooves, but the setae give evidence that it is reallythree segments fused. The second, third, and fourth endopods are 2-segmented. The fifth legs are peculiar and furnish the chief charac-teristic that separates this from the other species of the genus. Theexopod is stout and twice as long as the second basipod, with two smallspines on the outer margin, a third at the tip, and a much larger onesubterminal on the inner margin. The endopod is globular, less thanone-fourth as long as the exopod, and this gives rise to the specificname. It is unlike the other species in that it is neither bifurcate norpointed at the tip but is armed there with a stout spine curved out-ward. Total length 2.10 mm. Metasome 1.64 mm. long (midline),0.66 mm. wide.Types.?U.S.N.M. No. 74140 ; station 5223, latitude 13?36' N., longi-tude 121 ?25' 30" E., off Santa Cruz, Philippine Islands.Remarks.?The globular endopods of the fifth legs tipped with astout curved spine and the perfect symmetry of the urosome are thebest details for the identification of the species.PONTELLOPSIS LAMINATA, new speciesPlate 31, Figures 470-475Station 5340. Forty specimens, females and two immature males,were taken at a depth of 17 to 22 fathoms at this station oil' PalawanIsland in the Philippines.Female.?Metasome short and stout, nearly half as wide as long andbroadly rounded anteriorly, with a central projection over the base ofthe rostrum. Fourth and fifth segments fused and squarely truncatedposteriorly, with small spines at the corners, the left one slightly largerthan the right. Urosome, including the caudal rami, half as long asthe metasome and more than half as wide, and very asymmetrical.Genital segment increasing in width to its posterior margin, whereit is as wide as long. First abdominal segment one-half wider than
COPEPODS GATHERED BY ALBATROSS?WILSON 309the genital segment, with an acute spine on each lateral margin. Theone on the left is long and narrow and points diagonally backward,while the right one is shorter and wider and extends outward at rightangles to the urosome axis. To the dorsal surface of the segment atthe right posterior corner are attached two rounded laminae. Thesmaller anterior one is elliptical in outline and is usually turned downover the ventral surface. The larger posterior one extends backwardand inward above the anal segment and caudal rami and reaches thetips of the caudal setae. There is another smaller lamina attachedto the posterior margin of the segment and extending back over theanal segment and beyond its posterior margin. Usually these threecomplete the laminate armature of the urosome, but in one female therewas a fourth large lamina attached to the left side and sweeping aroundbackward and overlapping the one from the right. These laminaeare chitinous and perfectly transparent but of course brittle and likelyto be broken off. They still remained intact, however, in 75 percent ofthe specimens. The genital protuberance on the ventral surface of thegenital segment is at the posterior margin, and in most of the females asingle spermatophore was attached to it. The long narrow dischargetube swept around and up over the right side of the urosome, and thebody of the spermatophore trailed backward on the top of everythingelse. The anal segment is much shorter than the first abdominal seg-ment and invaginate posteriorly. The caudal rami are but littlelonger than wide, with the outer seta at the center of the outer marginand the others terminal.The first antennae are very slender and often extend forward and alittle divergent ; when turned backward they reach the first abdominalsegment. The exopod of the second antenna is only one-fifth as long,as the endopod is very slender and has five terminal setae. The man-dible has five larger teeth on the outside of the chewing blade and foursmaller ones on the inside ; the palp is biramose and very indistinctlysegmented. The exopods of the first four pairs of legs are 3-segmented,the endopods of the first legs 3-segmented, of the others 2-segmented.In the fifth legs the exopod ends in a long stout spine, with anotherstout spine at about the center of the inner margin and three minutespines on the outer margin. The endopod is half as long as the exopodand its distal half is bifurcate, the branches blunt. Total length 2 mm.Metasome 1.40 mm. long, 0.67 mm. wide.Types.?U.S.N.M. No. 74141; station 5340, latitude 10?55'51" N.,longitude 119?14'12" E., Malampaya Sound, Palawan, PhilippineIslands.Remarks.?In the genus Pontella the urosome of some species haschitinous attachments that cannot be classed as appendages. Here isan example of the same thing in the genus Pontellopsis, and these
310 BULLETIN 100, UNITED STATES NATIONAL MUSEUMlaminae together with the attached spermatophore identify the speciesat once. PONTELLOPSIS LUBBOCKII (Giesbrecht)PLATE 30, FlGUBES 459-461Monops lubbockii Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2, p. 29,1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 487, 496, pi. 26,figs. 18, 32 ; pi. 41, figs. 60, 63, 68, 1892.Station 31. Established by Giesbrecht upon specimens from thetropical Pacific and found only in the Carnegie plankton lists. Fig-ures of the fifth legs of a male and female obtained from this Albatrossstation off the Galapagos Islands and the grasping antenna of the maleare here introduced for comparison. The chief specific charactershown in the fifth legs of the female is the very long and slender spineat the tip of the exopod, with a stout spine on each margin at its base.In the fifth legs of the male there is a rounded knob at the distal endof the first segment of the right leg, two setae on the outer marginof the second segment, and the third segment is a stout chela. In theleft leg the end segment has a distinctive terminal armature. In theenlarged portion of the grasping antenna the three proximal segmentsare beveled on the distal side at the outer margin.PONTELLOPSIS PERSPICAX (Dana)Pontella perspicax Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 32, 1849.Pontcllina perspicax Dana, United States Exploring Expedition, 1838-42(Wilkes), vol. 14, pt. 2, Crustacea, p. 1155, 1853; pi. 81, fig. 2 a-d, 1855.Stations 4706; 4765; 5340. Established by Dana upon specimensfrom the tropical Atlantic north of the Equator and reported fromthere in the Carnegie plankton. Reported by Scott in the Sibogaplankton from the tropical Pacific.PONTELLOPSIS REGALIS (Dana)Plate 33, Figures 494-496'Pontella regalis Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 31, 1849.Pontellina regalis Dana, United States Exploring Expedition, 1838-42 (Wilkes),vol. 14, pt. 2, Crustacea, p. 1154, 1S53 ; pi. 81, figs. 1 a, b, 1855.Stations 15; 27; 30; 32; 3878; 4009; 4571; 4588; 4592; 4615; 4618;4619; 4640; 4648; 4649; 4652; 4667; 4710; 4718; 4719; 4743; 5133;5176 ; 5223. Identified by Sars from 17 of these Albatross stationsand from 5 Monaco stations; found in all the plankton lists exceptthe Challenger. In the Albatross plankton it is most widely distrib-uted, but has never been reported as abundant anywhere. One of thefemales captured at station 3878 in the Hawaiian Islands had a
COPEPODS GATHERED BY ALBATROSS?WILSON 311urosome like that shown in figure 496'. The distal corner of thegenital segment on the right side was prolonged diagonally outwardand backward into a slender finger process, while the left side wassmoothly rounded. Otherwise this specimen was just like all theothers, and its fifth legs proved it to be regalis.PONTELLOPSIS SINUATA, new speciesPlate 33, Figttres 497-502Stations 2937 ; 5223. Nine females and a male were obtained froma surface tow at the first of these stations, the type locality, off thecoast of southern California. Additional specimens were taken offSanta Cruz, Philippine Islands, station 5223.Female.?Metasome elliptical, a little more than twice as long aswide; head broadly rounded in front, with a slight median projectionover the base of the rostrum. Fourth and fifth segments fused, withtriangular spines at the posterior corners pointed diagonally outwardand backward and reaching the distal margin of the genital segment.Urosome one-third as long as the metasome, 3-segmented, and con-siderably distorted. Genital segment bent to the right at its distalend and downward; the two abdominal segments partially fused, aswide as the genital segment, and bent first downward and then upwardat the tip, giving the urosome an S-curve when viewed laterally, whencethe specific name. There is a ventral protuberance at the center ofthe genital segment tipped with a short process, and the dorsal sur-face of the first abdominal segment is prolonged backward over theanal segment and projects as a rounded tongue between the caudalrami. The latter are nearly as wide as long, the left one larger thanthe right and each with five setae, the outer one at the center of theouter surface.The first antennae are short and slender, just reaching the thirdthoracic segment. The exopod of the second antenna is much shorterthan the endopod, and its terminal setae scarcely reach the tip of thelatter. The exopod of the fifth legs is twice as long as the endopodand curved inward, with two small spines on its outer margin. Thetip is bifurcate for a short distance, with blunt branches, and fartherdown on the inner margin is a large spine of varying size but usuallylarger than the tip. The endopod is bifurcate for half its length, thebranches slender and blunt. Total length 4.24 mm. Metasome 3.50mm. long, 1.50 mm. wide.Male.?Metasome a little smaller and narrower than in the female,almost three times as long as wide if the posterior spines are included.Head separated from the first segment, and the fourth segment fromthe fifth, the latter with spines at the posterior corners much longerthan in the female, reaching the anal segment. Urosome cylindrical
312 BULLETIN 100, UNITED STATES NATIONAL MUSEUMand 5-segmented, just a fourth as long as the metasome on the mid-line and about a fourth as wide. The genital segment is as long asthe two following segments combined and a trifle wider; the otherfour segments are the same width but vary a little in length. Thecaudal rami are as long as the last two segments combined, subrectan-gular in outline, close together, and parallel.The first antennae are a little longer than in the female, and theenlarged portion of the right or grasping antenna is shown in figure501. The most prominent characteristic is the curved points on theouter margins of the three distal segments and the stout spine on theinner margin of the last one. The second antennae, mouth parts, andfirst four pairs of legs are like those of the female. The fifth legsare seen in figure 502, and they present several specific characters.The movable finger on the chela of the right leg is spatulate, tippedwith two spines and armed with three others on the inner margin atthe base. The thumb is short and stout and squarely truncate at thetip, with a small spine at each corner. The left leg is 3-segmented,with tufts of hairs on the inner margin at the two joints. The endjoint is tipped with three spines, the two outer ones acute, the centralone longer, curved, and blunt. Total length 3.75 mm. Metasome 3.25mm. long, 1.2 mm. wide.Types.?U.S.N.M. No. 74142; station 2937, latitude 33?04'30" N.,longitude 117?42' W., off southern California.Remarks.?The fifth legs of the male are so distinct as to establishthe validity of the species at once, but the fifth legs of the female arealmost exact replicas of those of bitumida. However, this female istwice the size of the bitumida female ; its first antennae reach only tothe third segment and its metasome ends in stout acute spines. Fur-thermore, its urosome is asymmetrical and its caudal rami are as wideas long. PONTELLOPSIS STRENUA (Dana)Plate 31, Figukes 476-480Pontella strenua Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 32, 1849.Pontellina strenua Dana, United States Exploring Expedition, 1838-42 (Wilkes),vol. 14, pt. 2, Crustacea, p. 1158, 1853 ; pi. 81, fig. 4 a-d, 1855.Stations 27; 3980; 4037; 4619; 4640; 4684; 4695; 5134; 5319; 5340;Caldera Bay anchorage, west coast of Mindanao, Philippine Islands.Established by Dana upon male specimens from south of the KingsmillIslands in the tropical Pacific and put in the genus Pontellina; trans-ferred to the genus Pontella by Brady in the Challenger plankton, andto Pontellopsis by Scott in the Siboga plankton, all specimens beingmales. Giesbrecht (1892, p. 496) listed both sexes, but gave only ashort description and but one detail for the female. A full descriptionof both sexes is here given, and, since Dana's original types have long
COPEPODS GATHERED BY ALBATROSS?WILSON 313
since disappeared, a male and female have been designated to serveas neotypes.Female.?Metasome elliptical, twice as long as wide and narrowedbut little at each end. Head separated from the first segment andbroadly rounded in front, with a small median protuberance over thebase of the rostrum. Fourth and fifth segments separated, the spinesat the posterior corners of the latter acuminate and reaching almostto the posterior margin of the genital segment. These spines areflanged on the inside at the base, with a small knob at the inner cornerof the flange. Urosome more than a fourth as long and wide as themetasome, somewhat asymmetrical, and 2-segmented. Genital seg-ment as wide as long and without a ventral protuberance, but withthe upper surface produced at the left posterior corner into a finger-like process that just reaches the left caudal ramus. Anal segmentwider than long and obliquely truncated at the posterior corners. Cau-dal rami asjinmetrical, the right one half as large again as the left,each with five setae of equal length.First antennae short, reaching only to the middle of the fourththoracic segment and sparsely setose. Endopod of second antennamuch longer than the exopod and very slender. Endopod of first legs3-segmented and just reaching the distal margin of the second exopodsegment. Exopods of fifth legs twice as long as endopods and curvedinward, with three small spines on the outer margin and three largerones at the tip, one terminal and the other two on the inner marginclose to it. The distal half of the endopods is bifurcate, with acutebranches. The first basipod in each leg has a large knob on its outermargin close to the distal end. Total length 2.50 mm. Metasome 2.24mm. long, 1.05 mm. wide.Male.?A little smaller than the female ; metasome short and stout,but with the spines at the posterior corners asymmetrical. The one onthe right side is long, slender, and more or less curved, reaching thethird or the fourth segment of the urosome according to the amount ofcurvature. The spine on the left is straight, acuminate, and a fourthto a half as long as the other. The urosome is a third as long and wideas the metasome and 5-segmented, the segments about the same widthbut differing in length. The third segment of the urosome has a smallknob projecting laterally on the right side and plainly visible in dorsalview. The caudal rami are symmetrical, enlarged distally, and twiceas long as wide, the outer seta on the outer margin one-third of thelength from the distal end.The first antennae are a little longer than in the female, and theenlarged portion of the right one is shown in figure 477. This has twodistinctive specific characters: first, the exceptionally long terminalportion, which apparently contains but two segments (although thearrangement of the setae on the second of these segments indicates
314 BULLETIN 100, UNITED STATES NATIONAL MUSEUMthat it is really three segments fused) and second, the perfectly smoothouter margin of the enlarged segments, which in most species is quiteirregular. The second antennae, mouth parts, and first four pairs oflegs are similar to those of the female. The right fifth leg is very muchlonger than the left, the hand of the chela is subtriangular, the apexis articulated with the second segment, the thumb and finger at thefree corners. The thumb is longer, slender, and pointed ; the finger isshorter, stouter, and blunt, with two inner setae. The second segmentof the left leg has a long process at the outer distal corner and the endsegment is tipped with two small spines. Total length 2.25 mm.Metasome 1.85 mm. long, 0.90 mm. wide.Neotypes.?U.S.N.M. No. 74144. These types are labeled by Dr.Wilson as from Endeavour Strait, north of Queensland, Australia, butwithout other data.Remarks.?This species is so closely related to regalis that it is diffi-cult to separate the two. However, if the two are placed together theycan be easily distinguished by their respective size, regalis being twiceas large as strenua. Though so similar there are enough differencesin the fifth legs of both sexes as well as in the urosomes to separatethe species. PONTELLOPSIS VILLOSA BradyPlate 30, Figure 462Pontellopsis villosa Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 86, pi. 34, figs. 10-13 ; pi. 35, figs. 14-20, 1883.Stations 31 ; 3932 ; 4952 ; 5228. This species was the type of Brady'snew genus Pontellopsis from the Challenger plankton, and since thegenus has proved to be a valid one it seems strange that Brady did notplace Dana's species strenua in it instead of in Pontella. It appearsin all the subsequent plankton lists. T. Scott (1894, p. 87) also foundit in 21 tow nettings from the Gulf of Guinea, all but one taken at thesurface and Giesbrecht (1892, p. 486) reported the species from theGulf of Naples. The Albatross specimens were males taken in surfacetows in the tropical Pacific.Genus PONTOPTILUS Sars 1905PONTOPTILUS MUTICUS SarsPontoptilus muticus Sars, Bull. Mus. Oceanogr. Monaco, No. 40, p. 19, 1905b;Res. camp. sci. Albert de Monaco, No. 69, p. 312, pi. 110, 1925.Station 4683. A single female identified by Sars from this stationbetween Callao, Peru, and Easter Island is the first record from thePacific Ocean. The species was established by Sars upon anothersingle female from the Canary Islands. Together with a third femalefound by Farran (1908, p. 81) off the west coast of Ireland, these areall the specimens that have thus far been found.
COPEPODS GATHERED BY ALBATROSS?WILSON 315Genus PSEUDANTHESSIUS Claus, 1889PSEUDANTHESSIUS PACIFICUS, new apeciesPlate 32, Figures 481-488Station 5223. Four females and five males were taken in the surfaceplankton at this station off the island of Luzon in the Philippines.Female.?Metasome obovate, narrowed considerably posteriorly andwithout lateral spaces between the segments, the greatest width acrossthe posterior margin of the fused head and first segment. Second,third, fourth, and fifth segments diminishing in length and width back-ward. Urosome more than a third as long and less than a half as wideas the metasome and tapered posteriorly. Genital segment as longas the first two abdominal segments combined ; anal segment twice aslong as the penultimate segment and invaginated on its posterior mar-gin. Caudal rami nearly three times as long as wide, each with fivesetae, the outer one at the center of the outer margin, the othersterminal.First antennae 7-segmented, the segments with the following relativelengths : 19, 20, 8, 6, 9, 7, 7, all very setose on the anterior margin andthe end segment bifurcate at its tip. Second antenna uniramose and4-segmented, the first segment considerably swollen at its base, thesecond segment as long as the first and with a short process on the outermargin and a slender spine on the inner margin. The third segmentis the shortest of the four, with a process and two setae on its innermargin. The fourth segment has a slender curved claw at its tip, along seta at the anterior distal corner, and two small setae at the baseof the claw. The mandible passes apically into a long spine toothedon both margins, and the palp is a simple fingerlike process with twoend setae and two on the inner margin. The second maxilla has astout basal segment and a much smaller end segment tipped with acurved and dentate spine. The maxilliped is 2-segmented, the endsegment ovoid and tipped with two curved spines. In the first threepairs of legs the outer spines of the exopods are short, ovate, and ser-rate, while the setae are long and densely plumose. In the fourth legsthe outer spines of the exopods are slender and aciculate, with a veryshort spine on each side at the base. The 1-segmented endopod is aflat lamina increasing in width distally, three times as long as itsgreatest width and tipped with two plumose setae as long as the legitself. The fifth legs each consist of a long narrow lamina, slightlycurved, and tipped with two plumose setae, the inner one as long as theleg itself. Total length 3.25 mm. Greatest width 1.20 mm.Male.?Metasome elliptical, evenly and broadly rounded at eachend and about three-fifths longer than wide. Urosome, including thecaudal rami, more than two-thirds as long as the metasome and 5-segmented. Genital segment nearly half as wide as the metasome
316 BULLETIN 100, UNITED STATES NATIONAL MUSEUMand as long as the abdomen, with two small spines at each posteriorcomer. The four abdominal segments the same width and the firstthree about the same length, the anal segment longer, with a posteriorsinus for two-thirds of its length. Caudal rami as long as the analsegment, three times as long as wide, the outer seta at the center ofthe outer margin.Antennae, mouth parts (except the second maxillae and the max-illipeds), and swimming legs like those of the female. The secondmaxilla is shown in figure 485; the basal segment has a roundedprotuberance on the inner margin at the distal end. The secondsegment is terminated by a sickle-shaped process whose convex mar-gin is fringed with a row of spines, diminishing in size outwardly.Inside the base of this process are two long slender spines half aslong as the process and blunt at their tips. The maxilliped (fig. 486)is made up of two stout basal segments and a slender terminal clawnearly as long as the two segments combined, curved but little, andblunt at its tip. Along the ventral surface of the second segmentis an irregular row of small saw teeth, and the inner surface of thesegment is hollowed out and armed with two spines. Total length,without caudal rami, 3 mm. Greatest width 1 mm.Types.?U.S.'NM. No. 74145 ; station 5223, latitude 13?36' N., longi-tude 121?25'30" E., off Santa Cruz, Philippine Islands.Remarks.?This species is smaller than Thompson and Scott's max-imus, and, as shown in the above description, there are specific differ-ences in nearly every one of the appendages.Genus PSEUDEUCHAETA Sars, 1905PSEUDEUCHAETA BREVICAUDA SaraPseudeuchaeta brevicauda Sabs, Bull. Mus. Oceanogr. Monaco, No. 26, p. 18,1905a; Res. camp. sci. Albert tie Monaco, No. 69, p. 102, pi. 29, figs. 1-12,1925.Stations 2861; 4679; 4687; 4715. Identified by Sars from thelast three Albatross stations and from 20 Monaco stations. Thefemale was fully described and figured in the Monaco plankton ; themale remains unknown. The original type specimens came fromthe Bay of Biscay. The present specimens are the first to be re-ported since then, as well as the first from the Pacific Ocean.Genus PSEUDOCALANUS Boeck, 1872PSEUDOCALANUS MINUTUS (Kr0yer)Calanus minutus Kr0yer, Naturh. Tidsskr. Kj0benhavn, ser. 2, vol. 2, p. 543,1848.Stations 4; 8; 10; 11; 13-16; 20-25; 29; 33-36; 41; 46; 52; 53;55; 59-62; 64; 66; 68; 70; 71; 73; 76; 3681; 3705; 3789; 3799; 3800;
; 4756;
318 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGenus PSEUDOPHAENNA Claus, 1863PSEUDOPHAENNA TYPICA SarsPseudophaenna typica Sars, Crustacea of Norway, vol. 4, p. 44, pis. 29, 30, 1902.Station 3602. Established by Sars upon specimens from the coastof Norway and not appearing in any plankton list. This discovery inthe Bering Sea is its first appearance away from the Norwegian coast.Sars regarded this species as a true bottom form in 20 to 50 fathoms,but at this station it was taken at or near the surface.Genus RATANIA Giesbrecht, 1892RATANIA FLAVA GiesbrechtRatania flava Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr. 19,p. 616, pi. 5, fig. 6 ; pi. 48, figs. 40-49, 1892.Station 5263. [A lot of 10 specimens (U.S.N.M. No. 74107) , includ-ing both sexes, was identified by Dr. Wilson from this Philippinestation. He noted the occurrence in his list of species by stations butfailed to mention it in his text. This appears to be the first time thespecies has been seen since originally described and the first recordof it from the Pacific?W. L. S.]Genus RHINCALANUS Dana, 1853RHINCALANUS CORNUTUS DanaRhincalanus cornutus Dana, United States Exploring Expedition, 1838-42(Wilkes), vol. 14, pt. 2, Crustacea, p. 1083, 1853; pi. 76, figs. 2 a-d, 1855.Stations 16; 27; 48; 63; 66; 75; 2236; 3765; 4605; 4613; 4630; 46384646 ; 4650 ; 4664 ; 4681 ; 4700 ; 4703 ; 4705-4707 ; 4709 ; 4710 ; 4712 ; 47134715-4719 ; 4721 ; 4722 ; 4724 ; 4728 ; 4730 ; 4734 ; 4738 ; 4740 ; 4926 ; 51205125 ; 5126 ; 5129 ; 5133 ; 5134 ; 5180 ; 5185 ; 5186 ; 5190 ; 5225 ; 5227 ; 52285233 ; 5240 ; 5246 ; 5263 ; 5287 ; 5320 ; 5358 ; 5422 ; 5437 ; 5451 ; 5553 ; 5611.In addition to being present at so many Albatross stations, this specieswas reported from several Challenger, 24 Monaco, 45 Siboga, and 14Carnegie localities. Dana reported four or five individuals from theAtlantic {op. cit, p. 1084). Besides being cosmopolitan in its distri-bution, it often swarms in large numbers.RHINCALANUS NASUTUS GiesbrechtRhincakinus nasutus Giesbrecht, Atti. Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 334, 1S88; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 152,160, pi. 3, fig. 6 ; pi. 9, figs. 6, 14 ; pi. 12, figs. 9-12, 14, 16, 17 ; pi. 35, figs. 46,47, 49, 1892.
COPEPODS GATHERED BY ALBATROSS?WILSON 319Stations 64; 65; 75-78; 3382; 3712; 3716; 4533; 4538; 4574; 45804585 ; 4613 ; 4632 ; 4637 ; 4638 ; 4646 ; 4650 ; 4652 ; 4655 ; 4700 ; 4713 ; 47154716 ; 4753 ; 5120 ; 5126 ; 5129 ; 5134 ; 5180 ; 5185 ; 5186 ; 5190 ; 5223 ; 52255227-5229; 5231; 5233; 5234; 5287; 5489; 5611. Not quite so widelydistributed in the Albatross plankton as the preceding species, yetreported from 16 Siboga, 59 Monaco, and 16 Carnegie stations. Bycomparing the lists it will be seen that the two species are found to-gether oftener than apart, but rarely in the same abundance.Genus ROBERTSONIA Brady, 1880ROBERTSONIA TENUIS BradyEctinosoma tenuis Brady and Robektson, Rep. 45th Meeting British Assoc. Ad-vancement of Science, p. 196, 1876. (Nomen nudum.)Robertsonia tenuis Brady, Monograph of British Copepoda, vol. 2, p. 25, pi. 41,figs. 1-14, 18S0.Station anchorage at Kodiak, Alaska. Established by Brady forthe British Isles but not appearing in any of the plankton lists. Itis not a pelagic harpacticoid, but frequents the bottom along the shoreand so would rarely be captured except at an anchorage. Both sexeswere fully described and figured by Sars (1909, p. 334), who reportedthe species from various localities on the coasts of Norway and fromthe Arctic Ocean.Genus SAPPHIRINA X V. Thompson, 1830SAPPHIRINA ANGUSTA DanaSapphirina angusta Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 41, 1S49;United States Exploring Expedition, 1838-42 (Wilkes), vol. 14, pt. 2, Crus-tacea, p. 1240, 1853 ; pi. 87, fig. 3 a, b, 1855.Stations 27; 77; 2937; 3799; 3829; 3901; 4926; 5126; 5190; 5196;5209 ; 5227 ; 5231 ; 5234 ; 5263 ; 5319 ; 5348 ; 5415 ; 5422 ; 5646. Foundedby Dana upon specimens from the southern Pacific and present in allthe plankton lists, but nowhere abundant.SAPPHIRINA AURONITENS ClansSaphirina auronitens Claus, Die freilebenden Copepoden, p. 153, 1863.Stations 15 ; 27 ; 30 ; 39 ; 41 ; 44 ; 49 ; 54 ; 55 ; 58-60 ; 62-66 ; 70 ; 71 ; 7377; 78; 2806; 3799; 3829; 3834; 3901; 3912; 3932; 4010; 4037; 41904952 ; 5120 ; 5134 ; 5180 ; 5185 ; 5186 ; 5190 ; 5196 ; 5223-5225 ; 5227 ; 52345240 ; 5263 ; 5287 ; 5301 ; 5308 ; 5319 ; 5334 ; 5338 ; 5386 ; 5415 ; 5424 ; 54345437 ; 5530 ; 5601 ; Sabtan Island and Iloilo Straits, Philippine IslandsFiji Islands; Gilbert Island; Niuafu Island. This species was re-ported from 8 /Siboga, 8 Monaco, and 72 Caimegie stations. It fre-
320 BULLETIN 100, UNITED STATES NATIONAL MUSEUMquents the surface when swimming about freely and so is oftenest takenin surface tows. SAPPHIRINA BICUSPIDATA GiesbrechtSapphirina Ucuspidata Giesbrecht, Atti Acoad. Lincei, Rome, ser. 4, vol. 7,sem. 1, p. 479, 1891; Fauna und Flora des Golfes von Neapel, monogr. 19,pp. 619, 642, pi. 52, figs. 39-41 ; pi. 53, figs. 9,37, 54; pi. 54, figs. 5, 30, 66, 1892.Stations 3901 ; 5223. A single female was present in the plankton atstation 3901 in the Hawaiian Islands. Several females were taken atstation 5223 off Santa Cruz, Philippine Islands. The species wasreported from 12 stations in the Siboga plankton. It has also beenfound by Farran (1929, p. 289) in the tropical Atlantic and has beenrecorded from the Indian Ocean (Thompson and Scott, 1903, p. 287),the Mediterranean (Giesbrecht, 1892, p. 619) , and the Ked Sea (Steuer,1898, p. 425). In spite of this wide distribution, not more than oneor two specimens have been taken from any one locality.SAPPHIRINA GEMMA DanaSapphirina gemma Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 44, 1849
;
United States Exploring Expedition, 1838-42 (Wilkes), vol. 14, pt. 2, Crus-tacea, p. 1252, 1853 ; pi. 88, figs. 1 a-f , 2 a-g, 1855.Station 3878. Established by Dana upon specimens from the coastof New Zealand and reported in the Monaco and Challenger planktons.SAPPHIRINA INTESTINATA GiesbrechtSapphirina intestinata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1,p. 478, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 619,643, pi. 52, figs. 10, 11, 36 ; pi. 53, figs. 11, 47, 51 ; pi. 54, figs. 7, 29, 62, 1892.Stations 71; 4761. Founded by Giesbrecht upon specimens fromthe tropical Pacific north of the Equator ; also recorded from the trop-ical Pacific in the /Siboga plankton. The second of these Albatrossstations is just south of the Shumagin Islands of Alaska. This is veryfar north for the genus, but within the influence of the Japan Current,which can transport species to the north just as the Gulf Stream doesin the northern Atlantic.SAPPHIRINA IRIS DanaSapphirina iris Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 41, 1849;United States Exploring Expedition, 183S-42 (Wilkes), vol. 14, pt. 2, Crus-tacea, p. 1239, 1853 ; pi. 87, figs. 1 a-c, 2 a-d, 1855.Stations 4619; 5155. Four females were captured at station 4619off the southwest coast of Panama ; a fifth at station 5155 in the Phil-ippines. The species appears both in the Ch allenger plankton (ge77ima,
COPEPODS GATHERED BY ALBATROSS?WILSON 321pars) and the Monaco plankton (Rose). It has also been reported byEsterly (1905, p. 219) off the coast of southern California. Dana'soriginal types came from the southern Pacific from within the cavityof a Salpa, one of the few instances in which specimens of this genushave been taken actually inside such a host.SAPPHIRINA LACTENS GiesbrechtPlate 33, Figure 504Sapphirina lactens Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr.19, pp. 619, 641, pi. 52, figs. 15, 16, 30 ; pi. 53, figs. 1, 27, 44, 1892.Stations 25; 54; 78; 2396. A single female was obtained in theplankton at each station. It is not present in any of the plankton listsbut was founded upon specimens from Naples and has been recordedin the Adriatic plankton by various authors. This is the first recordoutside of the Adriatic and shows that the same species may be foundalso in the western Atlantic.SAPPHIRINA LONGIFURCA A. ScottPlate 32, Figures 490-493Sapphirina longifurca A. Scott, Copepoda of the Siloga Expedition, monogr. 29a,pt. 1, p. 259, pi. 68, figs. 15-20, 1909.Stations 5232 ; 5553 ; 5578 ; 5640. Established by Scott upon a singlefemale from Molucca Strait off Ternate Island. The present speci-mens constitute the first record since the original discovery. Eightspecimens including a male were captured at these Albatross stationsamong the Philippine Islands. Since the females differ in minor de-tails from Scott's description and the male appears for the first time,a full description of both sexes is given. A typical female and themale allotype have been given U.S.N.M. No. 74146.Female.?General form elongate and narrow, more than four timesas long as wide including the caudal rami. Metasome about the samewidth throughout, the third and fourth segments with pointed pos-terior corners. The fifth segment is shorter than the others but extendsoutward on each side in a rounded process tipped with two setae, sothat it is nearly as wide as the rest of the thorax. Urosome a littlemore than half as wide and, including the caudal rami, seven-tenthsas long as the metasome and 5-segmented. The first four segmentsare about equal in length and in width; the anal segment is three-fourths as wide and twice as long, with nearly straight sides andreentrant at the center of the posterior margin, where on the dorsalsurface are two dorsal plates, each with a central dark spot. Caudalrami four times as long as wide and tapered posteriorly, each with unearly straight outer margin broken twice for the attachment of the
322 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
outer setae. The inner margin is broadly curved and has a smalltooth near the tip opposite the distal outer seta and the tip itself hastwo terminal setae. There is also an appendicular seta on the dorsalsurface of each ramus a little beyond the center.The first antennae are short and stout and 5-segmented, each seg-ment rather setose; the second antennae are 4-segmented and tippedwith a stout claw. The maxilliped is 3-segmented, with a short andstout terminal claw, and the legs show no distinctive specific charac-ters. Total length including caudal rami 5.50 mm. Width of meta-some 1.33 mm.Male.?General form short and broad, less than three times as longas wide including the caudal rami. Metasome widest at the thirdsegment and narrowed posteriorly, the segments diminishing in lengthbackward. Urosome narrower than the metasome and, without thecaudal rami, less than half as long and made up of five segments.The anal segment is less than half the width of the penultimate seg-ment and shows a pair of anal plates similar to those in the female,each with a dark spot in the center. Caudal rami also similar tothose in the female but only three times as long as wide, with twoterminal and two outer setae and a tooth near the tip of the innermargin. Antennae, mouth parts, and legs similar to those of thefemale. While the females are of a brownish color and opaque, themale, as is usual in this genus, is more or less transparent and iscovered up and down the center of the body with circular black spotsirregularly arranged and of different sizes. This spotting is fully asconspicuous and as deep a black as in nigromaculata; the position ofthe posterior pair of spots is shown in figure 493. Total length, in-cluding caudal rami, 6 mm. Greatest width 2 mm.Allotype maZe.?U.S.N.M. No. 74146 ; station 5578, latitude 5?14'38"N., longitude 119?57'57" E., north of Tawi Tawi, Philippine Islands.Remarks.?There are two differences between these Albatross speci-mens and the single female described by Scott. The eye lenses are incontact on the middle of the forehead, and the outer margins of thecaudal rami are armed with setae.SAPPHIRINA METALLINA DanaSapphirina metallina Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 41, 1S49
;
United States Exploring Expedition, 1838-42 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1242, 1853 ; pi. 87, figs. 5 a-c, 1855.Stations 3681; 3782; 3799; 3878; 3901; 3932; 4009; 4190; 4655;4699; 4721; 5102; 5129; 5155; 5185; 5223; 5229; 5422; 5553; GilbertIslands. Established by Dana upon specimens from these sameGilbert Islands. This species is so well distributed that it is presentin all the plankton lists.
COPEPODS GATHERED BY ALBATROSS?WILSON 323SAPPHIRINA NIGROMACULATA Clan.Saphirina nigromaculata Claus, Die freilebenden Copepoden, p. 152, pi. 8, figs.5, 6, 1863.Stations 1; 15; 3799; 3901; 4009; 4190; 4588; 4609; 4611; 4644;4663; 4700; 4713; 4717; 4733; 5129; 5155; 5185; 5186; 5190; 5196;5223; 5225; 5227; 5231; 5233; 5246; 5263; 5319; 5320; 5348; 5424;5437 ; 5530 ; Niuafu Island. This species is found in all the planktonlists except that of the Wilkes and Challenger and sometimes is quiteabundant. SAPPHIRINA OPALINA DanaSapphirina opalina Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 45, 1849;United States Exploring Expedition, 1S38-42 (Wilkes), vol. 14, pt. 2, Crus-tacea, p. 1254. 1853 ; pi. 88, fig. 4 a-1, 1855.Stations 15 ; 27 ; 49 ; 2396 ; 3781 ; 3799 ; 3867 ; 4190 ; 4611 ; 4655 ; 4663
;
4671; 4707; 4731; 5102; 5105; 5129; 5133; 5134; 5180; 5185; 5225;5227; 5231; 5233; 5319; 5348; 5456. Dana's types came from theAtlantic, but the species has since been reported from all the oceans.Although appearing in all the plankton lists, only one or two speci-mens have been recorded from any one locality.SAPPHIRINA OVATO-LANCEOLATA DanaSapphirina ovato-lanceolata Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 44,1849; United States Exploring Expedition, 1838-42 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1251, 1853 ; pi. 87, figs. 15 a-c, 16 a, b, 1855.Stations 3829 ; 3878 ; 4926 ; 5126 ; 5208 ; 5231. Established by Danaupon specimens from the Atlantic off Rio de Janeiro; reported byScott in the Siboga plankton from 22 stations in the Malay Archi-pelago, and confined to two localities in the tropical Pacific in theCarnegie plankton.SAPPHIRINA PYROSOMATIS GieibreehtSapphirina pyrosomatis Giesbrecht, Fauna und Flora des Golfes von Neapel,monogr. 19, pp. 619, 641, pi. 52, figs. 12-14, 17 ; pi. 53, flgs. 8, 41, 53 ; pi. 54,figs. 21, 38, 58, 1892.Station 14. A single female was obtained in a surface tow at thisstation east of Patagonia. The species was originally based uponspecimens from the Bay of Naples. Rose reported it from 10 stationsin the Monaco plankton, all in the Atlantic and Farran (1929, p. 289)also recorded it from the northern Atlantic in the Terra Nova plankton.The first Pacific record was in the Carnegie plankton.SAPPHIRINA SALI FarranSapphirina soli Fabran, British Antarctic (Terra Nova) Exped., 1910, Zool., vol.8, No. 3, p. 287, fig. 34, 1929.843804?50 13
324 BULLETIN 100, UNITED STATES NATIONAL MUSEUMStations 4653; 4731; 5196. Established by Farran in the TerraNova plankton from 9 stations off New Zealand and not found in anyof the plankton lists. SAPPHIRINA SALPAE ClansSapphirina salpae Claus, Arch, fur Anat., Physiol, und wiss. Med., 1859, p. 270,pi. 5B, fig. 1.Stations 3799; 5102; 5230; 5263; 5386; 5488; Gilbert Islands.Established by Claus upon specimens from Nice in southern France;not appearing in any of the plankton lists. It was reported, however,by Farran (1929, p. 287) as frequent off New Zealand, by Wolfenden(1911, p. 361) from the northern and southern Atlantic, and by Brady(as S. gemma) in the Challenger plankton from the PhilippineIslands. SAPPHIRINA SCARLATA GiesbrechtSapphirina scarlata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1, p.478, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. G20, G42, pi.52, figs. 42, GO, 61 ; pi. 53, figs. 12, 39, 62 ; pi. 54, figs. 25, 31, 72, 1892.Stations 3789 ; 3799 ; 4663 ; 5185 ; 5263 ; 5488. Established by Gies-brecht upon specimens from northeast of the Galapagos Islands,present at 3 stations in the Siboga plankton and at 5 in the Carnegie.Also reported by Farran (1929, p. 289) off New Zealand, and byEsterly (1905, p. 222) off the coast of southern California.SAPPHIRINA STELLATA GiesbrechtSapphirina stellata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1, p.47S, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 620, 643,pi. 52, figs. 7-9 ; pi. 53, figs. 15, 35, 59 ; pi. 54, figs. 22, 27, 69, 1S92.Stations 3932; 4700; 5223; 5240; 5319; Gilbert Islands. Estab-lished by Giesbrecht upon specimens from the tropical Pacific. Re-ported by Rose from 3 Monaco stations, by Scott from 30 Siboga sta-tions, and found at 8 Carnegie stations. Scott made it the commonestand most widely distributed species of the genus in the Siboga plank-ton, but it stood at the other distributional extreme here in the Alba-tross plankton. Genus SCAPHOCALANUS Sars, 1900SCAPHOCALANUS AFFINIS (Sars)Plate 17, Figures 220-221 ; Plate 33, Figure 503Amallophora affinis Sars, Bull. Mus. Oceanogr. Monaco, No. 26, p. 21, 1905a.Scaphocala?ius aflinis Sars, R?s. camp. sci. Albert de Monaco, No. 69, p. 171, pi. 48,figs. 15-23, 1925.Stations 18; 4634; 4661; 4665; 4667; 4671; 4679; 4719; 4722; 4725;4740 ; 5120 ; 5185 ; 5233. Identified by Sars from the first 11 of these
COPEPODS GATHERED BY ALBATROSS?WILSON 325Albatross stations and from 34 Monaco stations; reported by Farran(1929, p. 248) from the Antarctic in two deep hauls, 1,000 and 1,750fathoms; and from the Indian Ocean by Sewell (1929, p. 205). Bothsexes are fully described in the Monaco report.SCAPHOCALANUS ANGULIFRONS SarsPlate 33, Figures 505, 506Scaphocalanus angulifrons Sars, Bull. Institut Oceanogr. Monaco, No. 377, p. 8,1920 ; R?s. camp. sci. Albert de Monaco, No. 09, p. 170, pi. 48, figs. 1-14, 1925.Station 5185. Twenty-two females and one male were obtained atthis station between Panay and Negros, Philippine Islands, in a tow ata depth of 550 fathoms. The species was founded upon a single femalefrom the temperate Atlantic, and the Albatross specimens are the firsttaken since that time. The female was fully described and figured inthe Monaco plankton; the description of the new male here givencompletes the diagnosis of the species and substantiates its validity.Male.?Metasome elongate-elliptical, considerably narrowed at bothends ; head fused with the first segment and provided with a crest aswell defined as in the female. Fourth and fifth segments separated,the latter produced into small round knobs on each side of the genitalsegment. Urosome two-fifths as long and a quarter as wide as themetasome and 5-segmented, the segments diminishing in length andwidth backward, anal segment very short. Caudal rami almost circu-lar in dorsal outline and about twice as long as the anal segment, thefive setae attached around two-thirds of the circle.The first antennae are very slender and reach the distal end of thefirst abdominal segment. The exopod of the seond antenna is but lit-tle longer than the endopod, and its second segment is one-half longerthan the end segment, with very long and slender setae. Mouth partslike those of the female. Endopods of the first three pairs of legs withrows of spines on the ventral surface, but no spines on the fourth endo-pod. Fifth legs of the same general form as in afjvuis but differing indetails. The endopod of the right fifth leg is laminate and reaches themiddle of the second segment of the exopod, with a rounded barb onthe ventral margin. The first segment of the exopod is enlarged at thedistal end and projects beyond the attachment of the second segmentas an angular process. The second segment is also enlarged at thedistal end on the inner margin, while the third segment is straight andspiniform. The second basipod of the left leg is longer than the firstand reaches the center of the first exopod segment of the right leg.The two rami of this leg are subequal, one ending in an ovate knob, theother in a laminate seta. Total length 5.11 mm. Metsome 3.69 mm.long, 1.50 mm. wide.
326 BULLETIN 100, UNITED STATES NATIONAL MUSEUMAllotype maZe.?U.S.N.M. No. 74147, described by Dr. Wilson, butcannot now be found in the collection which he returned to theNational Museum. SCAPHOCALANUS BKEVICORNIS (Saw)Plate 33, Figtjbes 507-509Bcolecithrix brevicornis Sabs, Norwegian North Polar Exped., vol. 5, Crustacea,p. 46, pi. 10, 1900.Station 5185. Founded by Sars upon a few female specimens takennorth of latitude 81? during the Norwegian North Polar Expeditionand placed in the genus Scolecithrix. Found in the Polar Ocean be-tween Spitsbergen and Greenland by With (1915, p. 192) and trans-ferred to the present genus. Reported in the Antarctic by Farran( 1929, p. 248) and kept in the present genus, where it evidently belongs.Not in any of the plankton lists. A single male and female were takenin a tow at this Albatross station at a depth of 550 fathoms. Camera-lucida drawings of the fifth legs of each sex are here presented andleave no doubt of the identity of the species, and a dorsal view of themale is included since none has ever appeared. U.S.N.M. No. 74148.SCAPHOCALANUS ECHINATUS (Farran)Plate 34, Figures 510-511Scolecithrix echinata Farran, Ann. Rep. Fisheries Ireland, 1902-3, pt. 2, app. 2,p. 37, pi. 4, figs. 15-18 ; pi. 5, figs. 12-17, 1905.Stations 3799 ; 4758 ; 5231 ; 5263. Established by Farran upon a fewfemale specimens captured off the coast of Ireland ; later reported offNew Zealand (Farran, 1929, p. 250). Evidently no male was foundat either time although such a statement was not made. The planktonfrom station 3799 in the Hawaiian Islands, however, yielded a maleand two females, and the former is here described for the first time.Female.?Head smoothly rounded in front, without a crest, fourthand fifth segments fused with rounded posterior corners. Urosomeone-fourth as long and one-fifth as wide as the metasome and 4-seg-mented, the three abdominal segments equal in length and width.Caudal rami as wide as long, well separated, and somewhat divergent.The first antennae reaching the center of the last segment of the meta-some. The fifth legs 2-segmented, the end segment with a long smoothterminal seta, a coarsely toothed inner seta, and a small tooth on theouter margin opposite the base of the inner seta. Total length 2 to2.4 mm.Male.?Metasome elongate elliptical, three times as long as wide;head broadly rounded and without a crest ; fourth and fifth segmentsfused with rounded corners. Urosome almost a third as long and a
COPEPODS GATHERED BY ALBATROSS?WILSON 327fourth as wide as the metasome and caudal rami as wide as long. Thefirst antennae reach the genital segment, and neither of them is genic-ulate. The outer spines of the first and second segments of the secondexopod are about equal, as in the female. The fifth legs are equal inlength ; the second basipod of the right leg is enlarged into a spherealmost four times the diameter of the first basipod. The endopod isstyliform and 1-segmented, the exopod is slender and 3-segmented,and the endopod reaches only to the center of the first segment of theexopod. The two basipod segments of the left leg are slender andcylindrical and reach nearly to the center of the second segment of theright exopod. The two rami are 3-segmented and equal in length, thefirst two segments cylindrical, the end segment shaped like an hour-glass and sharply bent at the constriction. Total length 1.80 mm.Metasome 1.35 mm. long, 0.45 mm. wide.Allotype male.?U.S.N.M. No. 74149; station 3799, latitude 29?22'N., longitude 139?31' W., Hawaiian Islands.Remarks.?The fifth legs of this Albatross male are as distinctiveas those of the female and complete the species diagnosis.SCAPHOCALANUS INSOLITUS, new speciesPlate 34, Figures 512-514Stations 5105, 5231. Two females were found in the plankton atStation 5231, between Bohol and Leyte Islands in the Philippines.Additional specimens were taken also in the surface tow made at Sta-tion 5105 off southern Luzon.Female.?Metasome elongate-elliptical, nearly three times as long aswide and considerably narrowed at both ends. Head fused with thefirst segment and the resultant cephalothorax more than twice as longas the rest of the metasome, with a very pronounced triangular creston the forehead. Fourth and fifth segments also fused and prolongedbackward at the posterior corners nearly to the distal end of the genitalsegment. Urosome less than a third as long and a fourth as wide asthe metasome and 4-segmented, the segments all about the same width.The genital segment is as long as the first abdominal segment, whilethe second and third abdominal segments diminish in length. Caudalrami as long as the anal segment, one-half longer than wide anddivergent.First antennae reaching the caudal rami ; exopod of the second pairslightly longer than the endopod, the second segment longer than theend segment and all the setae exceptionally long and slender. Fifthlegs very unusual, as shown in figure 514, giving rise to the specificname. Each is 3-segmented, the two basal segments wider than long,the terminal segment much reduced in width and tipped with a smallspine at each distal corner and two still smaller ones between them.
328 BULLETIN 100, UNITED STATES NATIONAL MUSEUMAt the inner distal corner of the second segment is a huge spine per-fectly smooth and nearly as long as the entire leg. The two spines areslightly curved and project so obliquely inward that their tips almostmeet on the midline. Total length 3.80 mm. Metasome 3 mm. long,1 mm. wide.Types.?U.S.TXM. No. 74150; station 5231, latitude 10?01'15" N.,longitude 12i?43'15" E., between Bohol and Leyte, PhilippineIslands.Remarks.?This species may be readily recognized by its triangularcrest, which comes to a point in front when viewed laterally, and bythe unique details of the fifth legs, the huge spines being visible with-out removing the legs.SCAPHOCALANUS MAGNUS (T. Scott)AmaUophora magna T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6,pt. 1, p. 55, pi. 4, figs. 5-9, 1894.Stations 2; 2219; 4646; 4655; 4663; 4665; 4681; 4711; 4715; 4716;4717; 4719; 4793; 5120; 5129; 5185; 5231; 5320. Identified by Sarsfrom 10 of these Albatross stations and from 7 Monaco stations; alsoreported from 9 Siboga stations and the Carnegie plankton. In thepreliminary Monaco list Sars (1905a, p. 6) placed this species in thegenus AmaUophora. transferring it to the present genus in the finalMonaco report (1925).SCAPHOCALANUS MEDIUS (Sars)Plate 34, Figures 515-517AmaUophora media Saks, Bull. Inst. Oceanogr. Monaco, No. 101, p. 16, 1907.Scaphocalanns medius Saks, lies. camp. sci. Albert de Monaco, No. 69, p. 173,pi. 44, figs. 1-8, 1925.Stations 4679 ; 4717 ; 5120 ; 5230. Established by Sars upon a fewfemales taken in the Atlantic south of the Azores; appearing in theCarnegie plankton and listed by Sewell (1929, p. 208). Five femalesare listed from the first two stations in the eastern tropical Pacific andtwenty specimens, representing both sexes, at the last two stations inthe Philippines. Since the male is the first of its sex to be found,it is here described and figured.Female.?Metasome elliptical, head fused with the first segmentand smoothly rounded in front without any crest, fourth and fifthsegments also fused with rounded corners, which barely overlap theanterior margin of the genital segment. Urosome one-third as longand one-fourth as wide as the metasome, 4-segmented. First antennaereach the center of the last metasome segment. The fifth legs are 2-segmented, the end segment with a long inner seta plumed only on the
COPEPODS GATHERED BY ALBATROSS?WILSON 329
outside, a shorter terminal seta and a still shorter outer seta. Length2 to 2.4 mm.Male.?Metasome elliptical, a little more than twice as long as wideand scarcely narrowed at each end. Head fused with the first seg-ment and broadly rounded and without a crest; fourth and fifthsegments also fused, the rounded posterior corners not quite reachingthe genital segment. Urosome nearly half as long as the metasomeand a fourth as wide, 5-segmented, the segments diminishing in lengthdistally, the anal segment very short. Genital segment nearly aslong as the first two abdominal segments combined and partiallydivided at its center. Caudal rami twice as long as wide and slightlydivergent.First antennae reaching the center of the genital segment, ratherstout at the base but rapidly becoming slender with short setae.Exopod of second antennae one-half longer than the endopod ; mouthparts and first four pairs of legs like those of the female. Fifth legssimilar to those of the affirds male but with the following differences
:
The endopod of the right leg is much shorter than the basal segmentof the exopod and acuminate. The basal segment of the exopod isswollen proximally and produced inward at its tip into a blunt process,and the end segment is less than half as long as the middle segment,The rami of the left leg are approximately the same width, and theinner one is but little longer than the outer.Total length 1.82 mm. Metasome 1.20 mm. long, 0.53 mm. wide.Allotype male.?U.S.N.M. No. 74151; station 5230, latitude10?01'50" N., longitude 124?42'30" E., between Bohol and Leyte,Philippine Islands.Remarks.?This species closely resembles affinis but is only three-fifths as large and has no frontal crest. These differences togetherwith the details of the fifth legs in both sexes will identify the species.[Some question has arisen as to the actual identity of at least some ofthe specimens which Dr. Wilson has identified as S. medius, inasmuchas the drawing which he prepared of the fifth legs of the female forthis report (pi. 34, fig. 516) is not in agreement with a manuscriptsketch by Sars of an Albatross specimen for which he did not recordthe station number. Kegrettably, the Albatross specimen figured byWilson seems no longer to be extant. Dissections of a female S. mediusfrom the general collections of the National Museum (Albatrossstations 5120, 5230) identified by Wilson, as well as a typical femaleso designated by him (Albatross station 5230), are unlike Wilson'sfigure but do correspond closely with Sars' sketch to which referencehas been made. It cannot now be ascertained whether the Museumfemales identified by Wilson as S. medius are aberrant, or representa-
330 BULLETIN 100, UNITED STATES NATIONAL MUSEUMtives of an undescribed species. If the latter alternative is true, themale allotype of S. medius diagnosed by Wilson and placed in thesame vial with the selected "typical" female may have been incorrectlyassigned to this species.?M. S. W.]SCAPHOCALANUS ROBUSTUS (T. Scott)Plate 17, Figures 223-226 ; Peate 18, Figtjkes 227-229Atnallophora robusta T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6,pt. 1, p. 56, pi. 4, figs. 24-29, 1894.Stations 4590; 5231; 5233. Established by Scott upon specimensfrom the Gulf of Guinea and placed by him in the genus Amallo-phora; transferred to the present genus by With (1915, p, 202) in theDanish Ingolf plankton. With, however, acknowledged that his de-scription did not correspond with that given by Scott; moreover hisfigures were very limited. The Albatross specimens agree veryclosely with those obtained by Scott and for this reason the excellentfigures made by Sars are here reproduced together with a supple-mentary description.Female.?Metasome moderately robust but not so much so as inScott's figure, but the urosome is considerably more robust. The headis narrowed but little in front, the forehead is broadly rounded andhighly arched in lateral view and without a crest. Fourth and fifthsegments fused, the posterior corners broadly rounded and reachingbeyond the center of the genital segment, with a very minute spineat the apex. Urosome one-sixth as long and almost a third as wideas the metasome and 4-segmented. The genital segment is as long asthe three abdominal segments combined and considerably wider. Thecaudal rami are wider than long, squarely truncated distally, anddivergent.The first antennae reach beyond the tips of the caudal rami andare sparsely setose. The exopod of the second antenna is twice aslong as the endopod and its terminal segment is one-half longer thanthe second segment. The five lateral lobes of the second maxilla arewell developed, and the end segment is tipped with three cylindricalfilaments and five shorter ones with ovate heads. There is no traceof the filament with an ovate head on the first segment of the maxillipedmentioned by Scott, but otherwise the armature is exactly the same.The arrangement of the spines upon the third legs is shown in figure229, and it will be noted that those upon the endopod are long andslender. The fifth legs are 2-segmented with indications that thesecond segment is really two segments fused. It carries a stout setosespine on the inner margin and a much smaller and smooth terminalspine. Total length 3 mm. Metasome 2.65 mm. long, 1 mm. wide.
COPEPODS GATHERED BY ALBATROSS?WILSON 331Remarks.?All the specimens thus far obtained have been females
;
the male still remains unknown. The female can be recognized by itslarge size, robust form, by the absence of a frontal crest, and by thedetails of the fifth legs. Scott called attention also to the row of smallteeth along the outer margin of the terminal spines of the exopods ofthe swimming legs. These Albatross specimens agree exactly in sizewith the type specimens described by Scott. The smaller size givenby Farran (1929, p. 246) was doubtless due to the fact that his speci-mens were not fully grown, since he states that half of them were stillin stage V. SCAPHOCALANUS SUBBREVICORNIS (Wolfenden)Plate 34, Figure 518Amallophora subbrevicomis Wolfenden, Deutsche Siidpolar Exped., 1901-03,vol. 12, Zool., vol. 4, fasc. 4, p. 262, fig. 37, a-c, 1911.Stations 3799 ; 5233. Established by Wolfenden upon two femalespecimens in a vertical haul from a depth of 1,200 meters in theAntarctic Ocean and placed in the genus Amallophora. Eight fe-males were reported by Farran (1929, p. 249) from two vertical haulsof 400 and 1,000 meters in the Antarctic. The species did not appearin any of the plankton lists, and the foregoing are the only specimensreported since these records were made. The fifth legs of one of theAlbatross specimens are shown in figure 518, and it can be seen thatthey correspond with those figured by Wolfenden and Farran exceptin one particular. At the inner distal corner of the second segment isa short bluntly rounded process that does not appear in the otherfigures. This may well be the rudiment of an endopod that will dis-appear later. Genus SCOLECITHRICELLA Sars, 1902SCOLECITHRICELLA ABYSSALIS (Giesbrccht)Plate 34, Figure 519Scolecithrix abyssalis Gieskrecht, Atti Accad. Llncei, Rome, ser. 4, vol. 4, sem. 2,p. 338, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 266,284, pi. 13, figs. 15, 40 ; pi. 37, fig. 7, 1892.Stations 4652 ; 5129 ; 5185 ; 5190 ; 5231 ; 5263 ; 5320. Established byGiesbrecht upon specimens from the tropical Pacific in vertical haulsfrom depths of 1,000 to 4,000 meters. Found at eight stations in theSiboga plankton, at a single station in the Monaco plankton, and atten stations in the Carnegie plankton; all these tows were verticalhauls from considerable depths. These Albatross specimens were alsoobtained in vertical hauls from depths varying from 65 to 550 fathoms.It seems, therefore, that the specific name of the species is well de-served and that it is not likely to be found at the surface.
332 BULLETIN 100, UNITED STATES NATIONAL MUSEUMSCOLECITHRICELLA AUROPECTEN (Giesbrecht)Plate 19, Figuke 251; Plate 34, Figures 520-524Scolecithrix auropecten Giesbrecht, Fauna und Flora des Golfes von Neapel,monogr. 19, pp. 266, 284, pi. 13, figs. 8, 18, 22, 27 ; pi. 37, figs. 3, 10, 1892.Stations 3799; 4011; 4652; 5129; 5180; 5185; 5190; 5229; 5231;5233 ; 5240 ; 5246 ; 5263 ; 5320 ; 5437 ; 5553. Established by Giesbrechtupon female specimens taken at Naples; reported from the CelebesSea in the Siboga plankton, and from Pacific stations in the Carnegieplankton. The first males to be obtained came from these Albatrossstations and are here described.Female.?Metasome elongate-elliptical, two and a half times as longas wide; head fused with the first segment, and the fourth with thefifth segment, the posterior corners angular. Urosome 4-segmented,the three abdominal segments of equal length and width, the genitalsegment longer and wider. First antennae reaching the middle ofthe third thoracic segment; endopod of second antenna longer andstouter than the exopod. Fifth legs 2-segmented and tipped with twospines, one apical and the other subapical on the inside and longer.Length 1.8 mm.Male.?Metasome nearly three times as long as wide ; head separatedfrom the first segment and broadly rounded. Fourth and fifth seg-ments incompletely fused, with rounded corners overlapping the gen-ital segment. Urosome more than a third as long and as wide asthe metasome ; 5-segmented. Genital segment wider than long, withnearly straight sides; the first three abdominal segments about thesame length and width, the anal segment much shorter. Caudal ramia little longer than wide and parallel, each with five short setae.First antennae reaching the genital segment, rather slender andsparsely setose, neither of them geniculate. Second antennae, mouthparts, and first four pairs of legs like those of the female. The twofifth legs are unequal in length, the right one considerably the longerand slenderer. It is made up of two basipod segments, a 3-segmentedexopod, and a 1-segmented endopod. The left leg has two short basi-pod segments, neither of which is swollen, a long exopod segment witha knob at its distal end, and a rounded protuberance at the center ofthe lateral margin. The end segment is more or less laminate, curved,and flanked by a curved claw at its base. Total length 1.48 mm.Metasome 1.06 mm. long, 0.40 mm. wide.Allotype male.?U.S.N.M. No. 74153; station 5437, latitude15?45'54" N., longitude 119?42'45" E., west coast of Luzon, Philip-pine Islands.Remarks.?The males of species in this genus are extremely few innumber, and a new one makes a welcome addition to our knowledgeof these copepods.
COPEPODS GATHERED BY ALBATROSS?WILSON 333SCOLECITHRICELLA BRADYI (Giesbrecht)Scolecithrix Iradyi Giesbrecht, Atti Acad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 337, 1S88; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 266,283, pi. 4, fig. 7 ; pi. 13, figs. 1, 3, 7, 11, 21, 28 ; pi. 37, figs. 1, 2, 9, 1S92.Stations 3; 51; 77; 78; 470; 3799; 3829; 3834; 3867; 3878; 3932;3980; 4009; 4037; 4611; 4659; 4673; 4700; 4707; 5120; 5129; 5185;5190; 5233; 5263; 5319; 5342; 5399; 5412; 5415; 5422; 5437; 5553;Sabtan Island, Philippine Islands. Identified by Sars from 5 of theseAlbatross stations and from 1 Monaco station; found also at 7 Sibogaand 31 Carnegie stations.SCOLECITHRICELLA DENTATA (Giesbrecht)Plate 18, Figures 230-232Scolecithrix dentata Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr.19, pp. 260, 283, pi. 13, figs. 12, 20, 33 ; pi. 37, figs. 13, 14, 1892.Stations 3; 470; 3799; 4700; 4757; 4758; 5120; 5129; 5185; 5223;5230 ; 5246 ; 5320 ; 5340. Specimens, including both sexes, were identi-fied from station 4700, between Easter Island and the GalapagosIslands, by Sars, who also recorded the species from three stationsin the Monaco plankton. The Monaco specimens were all from thenorthern Atlantic, so that this is the first record from the Pacific andthese are the first males ever taken.Female.?Metasome elliptical, two and one-third times as long aswide ; head fused with the first segment, and the fourth with the fifthsegment, corners rounded. Urosome one-fourth as long and one-sev-enth as wide as the metasome, 4-segmented, segments diminishing inlength backward. First antennae not quite reaching the genital seg-ment; exopod of second antenna slightly longer than endopod. Fifthleg laminate ovate, with a tiny spine at the tip and a much larger oneat the center of the inner margin. Total length 1.60 mm.Male.?Fully as large as the female and similar in general form,but the urosome is proportionally longer and 5-segmented, the analsegment shortened and the penultimate segment lengthened, the otherthree about equal in length.The first antennae reach the middle of the urosome and the basalsegments carry slender aesthetasks in addition to setae. The fifthlegs are slender and reach bejrond the tips of the caudal rami, and theirstructure is very different from those of the other males. The secondsegment of the left basipod is inflated, and the exopod is 2-segmented,the second segment curved and tipped with a flanged spine. The firstsegment carries at its outer distal corner a blunt rodlike spine. Theright leg has two cylindrical basipod segments, which combined almostreach the distal end of the first exopod segment of the left leg. The
334 BULLETIN 100, UNITED STATES NATIONAL MUSEUMexopod is 3-segmented, the segments diminishing in length and widthdistally, the end segment tipped with a bunch of setae. The endopodis 1-segmented, much longer than the exopod, swollen in the center,the terminal portion curved into a half circle tipped with an acuteprocess. Total length 1.55 mm. Metasome 1 mm. long, 0.42 mm. wide.Allotype male.?U.S.N.M. No. 79939 (slide) ; station 5120, latitude13?45'30" N., longitude 120?30'15" E., west of Lubang, PhilippineIslands.Remarks.?At first glance the male fifth legs described above wouldseem to warrant generic separation from the other species, but closerexamination reveals that they are constructed on the same generalplan as those of auropecten and minor, the differences being confinedto details of structure. Since the females are undoubted species ofthe present genus and the males correspond in the details of the an-tennae, mouth parts, and first four pairs of legs, it does not appearadvisable to try to erect a new genus for them.SCOLECITHRICELLA MINOR (Brady)Plate 34, Figure 525Bcolecithriof minor Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 58, pi. 16, figs. 15-16, pi. 18, figs. 1-5, 1883.Station 4759. Established by Brady in the Challenger planktonupon specimens from the southwestern Indian Ocean and placed inthe genus Scolecithrix. Made the type of a new genus, Scolecithri-cella, by Sars (1902, p. 55) ; reported from one station in the Monacoplankton, and from both the Atlantic and Pacific in the Carnegieplankton. SCOLECITHRICELLA OVATA (Farran)Plate 35, Figure 527Bcolecithrix ovata Farran, Ann. Kept. Fisheries, Ireland, 1902-03, pt. 2, app. 2,p. 37, pi. 6, figs. 13-18 ; pi. 7, figs. 1-5, 1905.Station 2563. Established by Farran upon specimens from thenorthern Atlantic off the coast of Ireland; a single female was re-ported by Sars in the Monaco plankton and a few specimens at anorthern Atlantic station in the Carnegie plankton. Three femaleswere taken at this Albatross station off the coast of Delaware ; thusthe species remains confined to the Atlantic Ocean, and the adultmale is unknown. As can be seen from the figure, the fifth legs ofthe female are peculiar in being 3-segmented and in the relativesize and arrangement of the spines.[What other material Dr. Wilson may have had from this stationcannot now be determined. Neither the original sample from which
COPEPODS GATHERED BY ALBATROSS?WILSON 335the specimens here referred to and figured were taken nor the speci-mens themselves could be located in the Albatross material returnedby the Wilson estate to the National Musum.?W. L. S.]SCOLECITHRICELLA TYDEMANI A. ScottScolecithricella tydemani A. Scott, Copepoda of the Sibotfo-Expedition, monogr.29a, pt. 1, p. 93, pi. 30, figs. 10-17, 1909.Station 5185. Established upon a single female taken in the Hal-mahera Sea by the Siboga and fully described by A. Scott, it waslater placed in synonymy with Amallothrix ostusifrons by Sars(1925, p. 179) but is here validated by the discovery of two femalesfrom this Albatross station a little farther north, the first recordof the species since the original discovery.SCOLECITHRICELLA VTTTATA (Giesbrecht)Plate 18, Figubes 233, 234Scolecithrix vittata Giesbrecht, Fauna und Flora des Golfes von Neapel, monogr.19, pp. 266, 283, pi. 13, figs. 2, 23, 32, 34; pi. 37, figs. 5, 8, 1892.Stations 470; 4637; 4700; 4850; Fiji Islands. Identified by Sarsfrom the second and third of these Albatross stations and from oneMonaco station. The female is fully described in the Monaco re-port. Giesbrecht's type came from the Bay of Naples, and theMonaco specimen came from the temperate Atlantic; hence this isthe first record from the Pacific. The male remains unknown.Genus SCOLECITHRIX Brady, 1883SCOLECITHRIX DANAE (Lubbock)Vndina danae Lubbock, Trans. Ent. Soc. London, new ser., vol. 4, p. 21, pi. 9,figs. 6-9, 1856.Stations 6; 13; 15; 16; 18; 26; 27; 30; 52-62; 64; 65; 71; 75-82;2195; 2396; 3829; 3867; 3878; 3901; 3912; 3930; 3932; 3980; 4009-4011; 4037; 4574; 4580; 4588; 4611; 4635; 4638; 4640; 4644; 46464648; 4659; 4663; 4674; 4684; 4687; 4700; 4706-4708; 4710; 47134714; 4716; 4719; 4721; 4722; 4724; 4730; 4732; 4734; 47404751; 4926; 5102; 5129; 5133; 5134; 5155; 5180; 5185; 5186; 51905223; 5225-5227; 5240; 5246; 5263; 5319; 5320; 5340; 5346; 54105411 ; 5415 ; 5422 ; 5430 ; 5553 ; Sabtan Island, Philippine Islands ; FijiIslands ; Ellice Islands. Identified by Sars from 32 of these Albatrossstations and 33 stations ; found also at several Challenger, 63 Siboga,and 80 Carnegie stations. This is the most widely distributed speciesof the genus. It is often taken in large numbers at consecutivestations.
336 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGenus SCOLECOCALANUS Farran, 1936SCOLECOCALANUS SPINIFER. new speciesPlate 35, Figures 528-531Station 5321. Farran (1936, p. 102) estabished the genus ScoUco-calanus for two species, S. gdleatus and S. lobatus, taken during theBritish Expedition to the Great Barrier Reef of Australia. Both ofthe species were founded upon females alone and have never beenrecorded by any other author. Two females and a male of this newspecies were taken at this station between Formosa and Luzon in avertical haul from the bottom at 26 fathoms to the surface.Female.?Metasome elliptical, two and a half times as long as wide
;
head fused with the first segment to form a cephalothorax longer thanthe rest of the metasome. Forehead armed with a high galeate crest,which extends back on to the dorsal surface of the head. Fourth andfifth segments partially fused, with the posterior corners extendingback beyond the center of the genital segment, and the posteriormargin deeply reentrant on the dorsal surface. The urosome is 4-segmented, the segments diminishing considerably in length but onlya little in width posteriorly. The genital segment is asymmetrical,being produced outward and backward on the right side, the rightposterior corner ending in an acute spine, which extends back over thefirst abdominal segment and nearly reaches its posterior margin, andis prominent in both dorsal and lateral views. The anal segment isvery short and reentrant at the center of its posterior margin. Thecaudal rami are wider than long, somewhat divergent, and on a levelwith the ventral surface of the anal segment, each with five terminalsetae.The first antennae are rather slender and reach beyond the tips ofthe caudal rami by two segments. The exopod of the second antennais one-half longer than the endopod, and the end segment is longerthan the second segment. The second maxilla has five lateral lobes,with very long setae and three short terminal segments. The maxil-liped is 7-segmented and tapers regularly from base to tip and issparsely setose. The first four pairs of legs have 3-segmented exopodsand endopods with 1, 2, 3, and 3 segments, respectively. Only theleft fifth foot is present as in Farran's two species ; the basal segmenthas a small finger process at the distal end on the anterior surface, andthe long curved terminal spine is without a trace of spinules or hairson either margin. Total length 4.38 mm. Metasome 3.80 mm. long,1.53 mm. wide.Male.?Metasome with the same general structure as in the female,but the frontal crest is a little longer and extends farther back on the
COPEPODS GATHERED BY ALBATROSS?WILSON 337dorsal surface. The fifth segment is more fully separated from thefourth, and its posterior corners are smoothly rounded, with a smallcurved spine nearer the ventral surface. The urosome is relativelylonger and thicker dorsoventrally, and the caudal rami being on a levelwith the ventral surface are depressed far below the dorsal surface.The first antennae reach the second abdominal segment, and neitherof them is geniculate. The second antennae, mouth parts, and firstfour pairs of legs are like those of the female, while the fifth legs arepeculiar to the genus. In the right leg the second basipod is swollen,the endopod is 1-segmented and nearly reaches the tip of the exopod,and the latter is 2-segmented, the first segment one-half longer thanthe second. The end segment is swollen distally into three lobules, isflattened on the inner surface, and is tipped with a small spine. Theleft leg is about the same length as the right, the second basipod twicethe length of the first, and the two combined almost reach the distalend of the first segment of the right exopod. The left exopod is 2-segmented, the second segment longer than the first, swollen at its tipand armed with two or three spines. The left endopod is 1-segmentedand almost as long as the exopod, the tip curved over and pressed intothe shape of the bowl of a ladle. Since there was but the single malethe fifth legs were left intact, and the right one was drawn from theright side and the left one from the left side. The figure of the leftleg therefore needs to be turned over to get it in correct position withreference to the right leg. Total length 4.25 mm. Metasome 3.C0mm. long, 1.53 mm. wide.Types.?U.S.N.M. No. 74155; station 5321, latitude 20?19'30" N.,longitude 121?51'15" E., China Sea off Hong Kong.Remarks.?The female can be identified easily by the spine on thegenital segment, whence the specific name ; the details of the fifth legsbest characterize the male.Genus SCOTTOCALANUS Sars, 1905SCOTTOCALANUS FARRANI A. ScottPlate 35, Figures 533-537Scottocalanus farrani A. Scott, Copepoda of the S7&o#a-Expedition, munogr. 29a,pt. 1, p. 106, pi. 24, figs. 1-9 ; pi. 29, figs. 11-18, 1009.Station 5231. Established by Scott in the Siboga plankton upon53 specimens, including both sexes, from the western tropical Pacificand reported by Sewell (1913, p. 354; 1929, p. 183) from the IndianOcean. Three males and two females were found in the plankton ofthis Albatross station in the Philippines. The fifth legs of the maleseen in figure 537 leave no doubt of the identity of the species. In
338 BULLETIN 100, UNITED STATES NATIONAL MUSEUMthese Albatross males there was a fringe of small spines on the pos-terior margin of each of the first four urosome segments. Since sim-ilar spines are not mentioned in the other species of the genus, theywill serve as additional marks of identification. It is also worthyof note that in the Siboga plankton with one exception these specimenswere taken in vertical hauls from considerable depth ; the tow madeby the Albatross at this station was also a vertical haul, from 80 fathomsto the surface. 8COTTOCALANUS HELENAE (Lubbock)Plate 36, Figures 543-546Undina helenae Lubbock, Trans. Ent. Soc. London, new ser., vol. 4, p. 25, pi. 4, fig.4 ; pi. 7, figs. 1-5, 1856.Station 5231. Established by Lubbock upon male specimens fromthe northern Atlantic and placed in the genus Undina; transferred byA. Scott in the Siboga plankton to the present genus. It does notappear in any of the plankton lists but has been found by several otherauthors. Twenty-five specimens including both sexes, were obtainedat this Albatross station between Bohol and Leyte in a tow at a depth of80 fathoms. The female is described here for the first time.Female.?Metasome elliptical, narrowed considerably at each end
;
head fused with the first segment, the separation indicated by a veryshort dorsal groove. The two combined are nearly two-thirds theentire length of the metasome, and the head carries a prominentfrontal crest. Fourth and fifth segments separated, the latter withshort acute spines at the posterior corners, which overlap the genitalsegment a little. Urosome a fourth as long and wide as the metasomeand made up of four segments, which diminish in length and widthdistally. In lateral view each segment projects at its posterior marginabove the following segment. The genital segment is nearly as longas the three abdominal segments combined and is slightly protuberantventrally. The anal segment is very short and scarcely visible indorsal view. The caudal rami are well separated, about twice as longas wide, and strongly divergent.The first antennae are stout at the base but quickly become veryslender and reach the caudal rami. The exopod of the second antennais much longer than the endopod, and the end segment is about as longas the second segment. The mouth parts and first four pairs of legsare much like those of other species of the genus, but the fifth legs aredifferent. Each leg is made up of three distinct segments, the basalsegment with a rounded process at the outer distal corner, the secondsegment with parallel sides and the end segment considerably swollen.
COPEPODS GATHERED BY ALBATROSS?WILSON 339The terminal spine is short, curved and clawlike; the subterminalspine is stout, twice as long as the entire leg with a single row ofrather coarse spines and not divided at the tip. Total length 4.50 mm.Metasome 3.40 mm. long.Male.?Metasome elongate-elliptical, evenly contracted at each end ;head fused with first segment and the two together five-eighths of thelength of the metasome, with a prominent frontal crest. Fourth andfifth segments more or less fused, with angularly pointed posteriorcorners. Urosome a little more than a third as long and a little lessthan a third as wide as the metasome, and made up of five segments.The first four segments are about equal in length but the anal segmentis only one-fifth as long. The caudal rami are as wide as long, wellseparated and nearly parallel.The first antennae reach the anal segment; the second antennae,mouth parts, and first four pairs of legs are like those of the female,the fifth legs are distinctive. The right leg is longer than the left,the second basipod is swollen to twice the diameter of the first and isnearly a sphere. The endopod is 2-segmented, the second segmentsickle-shaped and with a distinct tooth near the center of the outermargin. The exopod is 2-segmented, the basal segment with an angu-lar process at the inner distal corner. The terminal segment is sickle-shaped, swollen at the end and tipped with a curved spine. The twobasipods of the left leg reach the center of the basal exopod segmentof the right leg. The endopod is laminate, 1-segmented, tongue-shaped, and just reaches the tip of the basal exopod segment. Theexopod is 2-segmented, the segments about equal in length, the endsegment tipped with two long curved filaments and a bunch of shorterones on the inner distal margin. Total length 4.75 mm. Metasome3.17 mm. long.Allotype female.?U.S.N.M. No. 74156; station 5231, latitude10?01'15" N., longitude 124?43'15" E., between Bohol and Leyte,Philippine Islands.Remarks.?The discovery of the female of this species verifiesScott's separation of the male as a new species and proves that it can-not be made a synonym of the species persecans as advocated byFarran. [See Sewell ( 1929, p. 183) for discussion of the synonymy ofthis species. If he is right in considering S. thorii With, 1915, as asynonym of S. helenae, then the female has been described by With.Further study of these Albatross specimens may be necessary to clearup this point.?M. S. W.]SCOTTOCALANUS LONGISPINUS A. SeottScottocalanus longispinus A. Scott, Copepoda of the Si&otfa-Expedition, monogr.29a, pt. 1, p. 109, pi. 25, figs. 10-18, 1909.843804?50 14
340 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMStations 5231 ; 5233 ; 5240 ; 5246 ; 5287. Established in the Sibogaplankton upon a single female from the Halmahera Sea in a verticalhaul from a depth of 1,000 meters ; not since found. A small numberof females were obtained at these Albatross stations east of Mindanaoand just north of the Siboga locality in vertical hauls varying between310 and 80 fathoms to the surface.SCOTTOCALANUS PERSECANS (Giesbrecht)Scolecithrix persecans Giesbrecht, Bull. Mus. Comp. Zool., vol. 25, No. 12, p. 253,pi. 3, figs. 6-12, 1805.Stations 4667; 4732; 4734; 5185; 5227; 5231; 5263; 5287. Identi-fied by Sars from the first three of these Albatross stations and from50 Monaco stations; present also in the Siboga plankton where all thespecimens obtained were males.SCOTTOCALANUS SECURIFRONS (T. Scott)Scolecithrix securifrons T. Scott, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6,pt. 1, p. 47, pi. 4, figs. 40-56 ; pi. 5, fig. 1, 1804.Stations 26 ; 27 ; 30 ; 4638 ; 4681 ; 4685 ; 4703 ; 4705 ; 4715 ; 4717 ; 4720-4722; 4730; 4732; 4734; 4736; 4740; 4742; 5120; 5185; 5221; 5227;5231; 5246; 5287. Identified by Sars from 18 of these Albatross sta-tions and from 25 Monaco stations; and found at 10 stations in theSiboga list. With one exception, the Siboga specimens were taken invertical hauls starting from depths of 80 fathoms or more, 15 haulswere from 30 fathoms, and one, indeed, was from 550 fathoms.SCOTTOCALANUS SETOSUS A. ScottScottocalanus setosus A. Scott, Copepoda of the Si&o^o-Expedition, monogr. 20a,pt. 1, p. 108, pi. 24, figs. 10-18, 1000.Stations 5185; 5231; 5437. Established by Scott upon femalespecimens from the western tropical Pacific and described in the Sibogaplankton. These Albatross specimens are the first to be recorded sincethe original discovery, and they come from the same locality.SCOTTOCALANUS THOMASI A. ScottPlate 36, Figure 547Bcottocalanus thomasi A. Scott, Copepoda of the Si&ogra-Expedition, monogr.20a, pt. 1, p. 100, pi. 26, figs. 1-10 ; pi. 28, figs. 10-17, 1000.Stations 3799; 5120; 5185; 5227; 5231; 5233; 5437; 5451. Estab-lished by Scott in the Siboga plankton upon specimens from the BandaSea just south of the Equator in the western Pacific and reportedfrom the Indian Ocean by Sewell (1929, p. 184). Most of these
COPEPODS GATHERED BY ALBATROSS?WILSON 341Albatross specimens came from a little farther north in the Philip-pines and included females only. This sex can be identified by thepeculiar structure of the long subapical seta on the fifth legs as shownin figure 547. This seta is somewhat flattened dorsoventrally and di-vided at its tip, one branch being fringed with hairs while the otheris smooth. [Sewell finds that the V-shaped appearance of the endof this spine is due to viewing the enlarged spinules of the distalportion in profile.?M. S. W.]Genus SPINOCALANUS Giesbrecht, 1888SPINOCALANUS ABYSSALIS GiesbrechtSpinocalanns abyssalis Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 335, 1888 ; Fauna unci Flora des Golfes von Neapel, monogr. 19, p. 209, pi.13, figs. 42-48 ; pi. 36, fig. 49, 1892.Stations 53 ; 76 ; 3799 ; 4663. Identified by Sars from three Monacostations and appearing otherwise only in the Carnegie plankton.Both sexes are described by Sars (1901, p. 22; 1903, p. 157) in the
"Crustacea of Norway."SPINOCALANUS MAGNUS WolfendenSpinocalanus magnus Wolfenden, Journ. Mar. Biol. Assoc. United Kingdom,new ser., vol. 7, No. 1, p. 118, 1904.Station 5226. Established by Wolfenden upon specimens obtainedin the northern Atlantic ; described and figured by Sars in the Monacoplankton and appearing in the Carnegie list.Genus STEPHOS T. Scott, 1892STEPHOS PERPLEXUS, new speciesPlate 36, Figures 548-550Stations 27; 5319. Each of these stations yielded a single male.The males have exceptionally complicated fifth legs which have ageneral resemblance to those of the preceding genus.Male.?Metasome elliptical, the length two and two-thirds timesthe width ; head fused with the first segment, narrowed and roundedin front and widest at its posterior margin. Fifth segment withsharp posterior corners turned inward but without spines. Urosomeone-fourth as wide and one-third as long as the metasome and 5-seg-mented, the segments all the same width and nearly the same length.Caudal rami widely separated at the corners of the anal segment,divergent, and as wide as long.First antennae reach the anal segment, are rather slender, andneither of them is geniculate. The exopod of the second antenna islonger than the endopod, and its end segment is longer than the sec-
342 BULLETIN 100, UNITED STATES NATIONAL MUSEUMond segment. Exopods of the first four pairs of legs 3-segmented,endopods with one, two, three, and three segments, respectively.Fifth legs rather complicated and very bizarre, the right leg muchlonger than the left. The two basipod segments of this leg are aboutthe same length and folded together. Exopod 3-segmented, the basalsegment armed with a tuft of lanceolate leaflike appendages, theother two segments triangular and very unequal in size; endopod 3-segmented and turned inward. The left leg is large and tumid ; theexopod has two swollen segments tipped with a long curved claw andan irregular wormlike process; the endopod is a long and slenderspine with an S-shaped curve. Total length, including caudal rami2.90 mm. Greatest width 0.86 mm.Type.?U.S.N.M. No. 74157; station 5319, latitude 21?31' N., longi-tude 117? 53' E., China Sea, near Formosa.Remarks.?These fifth legs do not correspond exactly with those ofthe genus Stephos but at least they are equally bizarre, and it isbetter to leave the erection of a new genus for this species until thefemale is obtained. Genus TEMORA Baird, 1850TEMORA DISCAUDATA GiesbrechtPlate 36, Figttoes 551-553Temora discaudata Giesbrecht, Atti Accad. Lincei Rome, ser. 4, vol. 5, sem. 1,p. 814, 18S9; Fauna und Flora des Golfes von Neapel, rnonogr. 19, pp. 328,338, pi. 17, figs. 3, 20, 23 ; pi. 38, figs. 24, 25, 28, 1892.Stations 12 ; 13 ; 15 ; 16 ; 27 ; 30 ; 65 ; 66 ; 70 ; 71 ; 73 ; 77-79 ; 4611 ; 46384640; 4644; 4646; 4663; 4664; 4734; 5133; 5180; 5185; 5186; 51905209; 5223; 5225; 5226; 5228; 5230; 5240; 5262; 5263; 5301; 53195320; 5338; 5340; 5348; 5399; 5424; 5434; 5489; 5553; 5646; 56475651 ; 5661 ; Charles Island, Galapagos. Identified by Sars from 13of these Albatross stations but not recorded in his Monaco list. Itwas well distributed in the Siboga and the Carnegie planktons.TEMORA LONGICORNIS (Mtiller)Cyclops longicornis Mulleb, Entomostraca, p. 115, pi. 19, figs. 7-9, 1785.Stations 7; 9; 10; 16; 27; 30; 71; 2396; 4952; 5129; 5133; 5175;5176; 5180; 5185; 5186; 5190; 5223; 5225-5228; 5232; 5262; 5263;5301; 5319; 5381; 5382; 5415; 5424; 5434; 5437; 5488; 5651; IloiloStraits, Philippine Islands. This is a surface species and oftenswarms in large numbers in favorable localities. It occurred also inthe Monaco and Carnegie planktons.
COPEPODS GATHERED BY ALBATROSS?WILSON 343TEMORA STYLIFERA (Dana)Plate 34, Figure 526Calanus stylifer Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 13, 1849 ; UnitedStates Exploring Expedition 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea, p.1058, 1853 ; pi. 72, fig. 9, 1855.Stations 9; 16; 27; 30; 48; 70; 71; 77; 78; 80; 81; 2396; 2792; 37994588; 4611; 4640; 4644; 4926; 4952; 5102; 5129; 5133; 5134; 51555175; 5176; 5180; 5185; 5186; 5190; 5196; 5199; 5208; 5209; 52235225; 5226; 5228; 5230-5234; 5240; 5246; 5262; 5263; 5299; 53015319; 5320; 5338; 5340; 5342; 5358; 5382; 5386; 5399; 5422; 54245434; 5488; 5489; 5530; 5553; 5601; 5646; 5651; 5672; Iloilo StraitsPhilippine Islands; Fiji Islands; Gilbert Islands; Charles IslandGalapagos. This is a widely distributed species and was recordedfrom many stations in the Monaco and Carnegie planktons; unex-pectedly absent from the Siboga list.TEMORA TURBINATA (Dana)Calanus turbinatus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 12, 1849;United States Exploring Expedition, 1S38-1S42 (Wilkes), vol. 14, pt. 2,Crustacea, p. 1057, 1853 ; pi. 72, fig. 8, 1855.Stations 2219; 5175; 5176; 5246; 5262; Iloilo Straits, PhilippineIslands. This species was found at 3 Monaco and 25 Siboga stationsbut was not present in the Carnegie plankton. The Siboga specimenswere taken in vertical hauls from considerable depths, which wouldsuggest that this species frequents deeper waters than the rest of thegenus, yet with one exception, station 5246, a vertical haul from 100fathoms to the surface, all the Albatross specimens were secured bymeans of surface tows.Genus TEMORITES Sars, 1900TEMORITES BREVIS SaraPlate 35, Figuke 539Temorite8 brevis Sabs, Norwegian North Polar Exped., vol. 5, Crustacea, p. 100,pis. 30, 31, 1900.Station 5180. Two females were found in the plankton at this sta-tion in the vicinity of Komblon Island in the Philippines. Originallyobtained by Sars from the North Polar Ocean, it was later identifiedby him from the Mediterranean (1925, p. 194), and is here recordedfrom the tropical Pacific from three widely separated localities.
344 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGenus TIGRIOPUS Norman, 1869TIGKIOPUS INCERTUS SmirnovPlate 36, Figures 554-559Tigriopus inccrtus Smirnov, Trans. Arctic Inst. U. S. S. R., vol. 2, p. 205, figs. 16-23,1932.Twenty-five specimens (U.S.N.M. Nos. 74158 and 78840), includingboth sexes, were obtained in a tow through the kelp about Rat Islandin the western Aleutian Islands by V. B. Scheffer, of the U. S. Biologi-cal Survey, June 26, 1932. They are the first to be obtained since theoriginal discovery by Smirnov off Franz Josef Land. Smirnov's de-scription and figures are correct but rather brief, hence a full descrip-tion is here supplied, together with supplementary figures.Female.?Metasome elongate-ovate, only a little narrowed posteri-orly, the first three thoracic segments with lateral lappets. Rostrumwide, spatulate, and curved over ventrally but prominent in dorsalview. Urosome narrower than the metasome but two-thirds as wideas long, the segments diminishing in length backward. The anal seg-ment is quite short and reentrant at the center of its posterior margin,but the sinus is not very deep. Caudal rami as wide as long, the longinner setae more than twice the length of the entire urosome.The first antennae are about as long as the cephalic segment and are9-segmented, the four basal segments thick and robust, the five distalsegments slender and short. Exopod of second antenna 4-segmented,with five setae, the end segment the longest and tipped with two un-equal setae. Second maxillae broad; hand of chela on maxillipedsellipsoidal, considerably narrowed at each end, the dactylus ratherweak and reaching only to the center of the hand. First legs prehensile,the proximal segment of the exopod as long as the other two segmentscombined, the end segment with four stout curved claws and twosetae. Endopod with basal segment almost six times as long as theother two segments combined, the end segment with two slender claws.Fifth legs of the usual pattern, the outer process of the basal segmentrather large with a long seta, the inner expansions of the two legspartially fused on the midline, each reaching the center of the distalsegment and armed with four setae, the second outer one the longest.Distal segment ovate, about twice as long as wide with four setae ; theterminal one the longest. Total length 1.50 mm. Width of head0.52 mm.Male.?About the same size as the female but with a somewhat nar-rower metasome and urosome. First antenna stout, the terminal chelawith a globular hand and a reduced clawlike dactylus. Outside of thebase of the dactylus is a triangular process and a spine, the latter at
COPEPODS GATHERED BY ALBATROSS?WILSON 345the tip of the hand. The endopod of the second legs has an elongateacuminate spine at the distal corner of the outer margin of the secondsegment, which reaches far beyond the tip of the third segment. Thefifth legs are much reduced in size, the inner expansion of the basalsegment has entirely disappeared, and the outer process is representedby a short spine. The terminal segment is very small and armed withfour setae. A sixth pair of legs is indicated at the posterior cornersof the genital segment by one larger spine and several smaller ones.Ncotypes.?U.S.N.M. No. 74158, Eat Islands, western Aleutian Is-lands.Remarks.?As noted by Smirnov, the second legs of the male resemblethose of the genus Harpacticus more than those of Tigriopus. But inGther respects the male and in all details the female correspond to thepresent genus. Genus TORTANUS Giesbrecht, 1898TORTANUS BARBATUS (Brady)Plate 36, Figube 560Corynura barbata Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23, Cope-poda, p. 71, pi. 31, figs. 10-12, 1883.Stations 5175; 5176. Established by Brady upon a single femalefrom Zebu Harbor, Philippine Islands and three females recorded byScott in the Siboga plankton from Manipa Strait just south of the Phil-ippines. A male was added by Friichtl (1923, p. 456) from the AruIslands, and the species was reported from the Bay of Bengal by Sewell( 1912, p. 377) . As can be seen in the figure, the fifth legs of the femaleare very asymmetrical, the left one with a tuft of curved claws at thecenter of the inner margin.TORTANUS DISCAUDATUS (Thompson and Scott)Corynura discaudata Thompson and Scott, Trans. Liverpool Biol. Soc, vol. 12(1S98) , p. 80, pi. 6, figs. 1-11 ; pi. 7, figs. 1, 2, 1897.Stations 4756; 4758. Identified by Sars from these Albatross andfrom two Monaco stations and is not found in the other planktons.It has generally been considered a littoral rather than a pelagic species,as it is sometimes found in considerable numbers close to shore. TheAlbatross specimens were taken in vertical hauls to the surface from75 and 300 fathoms respectively.TORTANUS FORCIPATUS (Giesbrecht)Corynura forcipata Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2,p. 26, 1S89; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 525,530, pi. 31, figs. 2, 3, 5, 7, 9, 10, 12, 15 ; pi. 42, figs. 34, 37, 1892.
346 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMStation 5287. Established by Giesbrecht upon female specimensfrom the straits of Formosa ; the male was afterward added by Sewell(1914, p. 249). The species is declared by A. Scott in the Sibogaplankton (p. 190) to be distinct from gracilis, with which it has beenmade synonymous b}^ some writers. The Albatross specimens supportScott's decision. In the female the right leg is almost twice as longas the left, while in the male the two fifth legs are of equal length.TORTANUS GRACILIS (Brady)Oorynura gracilis Brady, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23,Copepoda, p. 71, pi. 3, figs. 1-14, 1883.Stations 5102; 5129; 5175; 5176; 5246; 5340; 5410; 5411; GilbertIslands. Brady obtained specimens of both sexes from the PhilippineIslands and made them a new species of the genus Corynura. Thisgenus name being preoccupied, Giesbrecht (1898, p. 157) substitutedScott's decision. In the female the right leg is almost twice as longas the left, while in the male the two fifth legs are of equal length.TORTANUS MURRAYI A. ScottPlate IS, Figures 235-242Tortanus murrayi A. Scott, Copepoda of the Si&o^a-Expedition, monogr. 29a, pt.1, p. 191, pi. 56, figs. 1-8, 1909.Stations 5129; 5175; 5176; 5246; 5301; 5340; 5410; 5411; IloiloStraits, Philippine Islands; Gilbert Islands. Sars identified speci-mens obtained in a surface tow at Butaritari Lagoon as a new speciesand made pencil drawings of all the appendages. They prove, how-ever, to belong to the above species described by Scott in his Sibogareport, but Sars' figures include details omitted by Scott and for thisreason are here included and the species redescribed.Female.?Metasome elliptical, two and a half times as long as wide
;
head separated from the first segment and narrowed considerably infront. Fourth and fifth segments fused with smoothly rounded cor-ners and without spines or processes. Urosome nearly symmetrical,but the genital segment has a small tubercle at the left posterior cornerand the left caudal ramus is enlarged a little.The first antennae extend beyond the caudal rami and have threeor four large setae at their tips. The exopod of the second antennais shorter than the endopod, and the second segment is three-fifthsof the entire length. The three terminal segments carry setae thatare longer than the entire exopod. The disal segment of the endopod isthree-fifths as long as the proximal segment and not lobed at the tip.The outer tooth on the chewing blade of the mandible is enlarged,
COPEPODS GATHERED BY ALBATROSS?WILSON 347bluntly pointed, and inclined away from the other teeth. The latterare four in number and close together and suggest the fingers of ahand with the large tooth a swollen thumb. The palp has a long basi-pod and two short rami each 1-segmented and armed with three setae.The basal segment of the second maxilla has a large rounded processarmed with seven setae at its distal posterior corner, and the end seg-ment has three much longer setae. The maxilliped is very stout and5-segmented, each segment armed with a long curved seta set withsmall spines along its concave margin. The fifth legs are symmetrical,neither one being enlarged, and the three spines at the tip of eachleg are smaller and less divergent than those figured by Scott. Totallength 2.25 mm.Male.?Similar in general appearance to the female, but the headand posterior metasome are narrower and the urosome is 5-segmented.The caudal rami are the same size, perfectly symmetrical, and six timesas long as wide, and the second inner seta on each is elongate. Theleft fifth leg is much longer than the right and reaches back to thecenter of the caudal rami. Total length 2.15 mm.TORTANUS RECTICAUDA (Giesbrecht)Corynura recticavda Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sera. 2,p. 26, 1889 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 525, 531,pi. 31, figs. 1, 4, 8, 11, 14, 16 ; pi. 42, figs. 35, 36, 39, 1892.Station 5415 ; Iloilo Straits, Philippine Islands. [From the first ofthese localities, between Cebu and Bohol, one female was identifiedand preserved by Dr. Wilson (U.S.N.M. No. 78844).?W. L. S.]Genus UNDEUCHAETA Giesbrecht, 1888UNDEUCHAETA MAJOR GiesbrechtPlate 35, Figure 541Vndeuchaeta major Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2,p. 336, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 227,232, pi. 37, figs. 56, 57, 59, 1892.Stations 2; 32; 3382; 3799; 4427; 4571; 4574; 4679; 4681; 4687;4691; 4715; 4716; 4722; 4732; 4740; 4757; 4926; 5120; 5155; 5185;5223; 5227; 5228; 5231; 5233; 5246; 5263; 5287; 5319; 5437; 5451;5595. Present in the Monaco, Siboga, and Carnegie planktons. Thespecies is distinguished in the female by a frontal crest and the sharpposterior corners of the metasome, and in the male by the enlargedbarblike tip of the right endopod of the fifth legs. Figure 541 showsthe fifth legs of mature and immature males.
348 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMUNDEUCHAETA PLUMOSA (Lubbock)Plate 35, Figure 540Undina plumosa Lubbock, Trans. Ent. Soc. London, new ser., vol. 4, p. 24, pi. 9,figs. 3-5, 1S56.Stations 15; 16; 26; 27; 74; 2195; 3799; 3800; 4009; 4010; 4681;4683; 4685; 4687; 4691; 4705; 4730; 4740; 4926; 5120; 5180; 5185;5186; 5227; 5231; 5233; 5234; 5246; 5263; 5319; 5437; 5451; 5595;H. 3789. Present, like the preceding species, in the Monaco, Siboga,and Carnegie planktons. The female has no frontal crest, and on thedorsal surface of the genital segment is a recurved spine ; the fifth legsof the male have the form shown in figure 540.Genus UNDINULA A. Scott, 1909UNDINULA CAROLI (Giesbrecht)Plate 19, Figures 252-255Calanns caroli Giesbrecht, Atti Accad. Lincel, Rome, ser. 4, vol. 4, sem. 2, p. 331,18SS ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 91, 127, pi. 8,fig. 3, 1892.Stations 6 ; 7 ; 9 ; 15 ; 19 ; 27 ; 31 ; 64 ; 65 ; 71 ; 75-78 ; 470; 3829 ; 3834
;
3867; 3878; 3901; 3912; 3929; 3930; 3980; 4009; 4010; 4011; 4037;4614; 4743; 4926; 5120; 5126; 5129; 5134; 5180; 5185; 5186; 5190;5196; 5223-5226; 5228; 5231; 5234; 5240; 5246; 5258; 5262; 5308;5319; 5320; 5340; 5386; 5396; 5397; 5399; 5412; 5415; 5422; 5434;5437 ; 5507 ; 5601 ; 5646 ; Fiji Islands. This species was well distributedin the Siboga and Carnegie planktons and was often abundant, but itwas not present in the Monaco plankton. There has always been diffi-culty in separating this from the following species; in fact the twoare still regarded as the same species by some authors. Scott, how-ever, in the Siboga plankton fully established the two males as sep-arate species but had to acknowledge that he was unable to separatethe females. This was reserved for Sars, whose detailed figures of thetwo species reveal the following distinguishing features
:
Female.?Head somewhat narrowed anteriorly, with a smoothlyrounded forehead, posterior corners of the metasome asymmetrical,the one on the left reaching the distal margin of the genital segment,closely appressed to the latter, and smoothly rounded at its tip, theone on the right not reaching the center of the genital segment andinclined outward away from it. The urosome is the same widththroughout, the anal segment fully as wide as the genital segment.The latter is as thick dorsoventrally as it is long and has no dorsalposterior spine. The short setae on each caudal ramus are less thana sixth as long as the longest one.
COPEPODS GATHERED BY ALBATROSS WILSON 349Male.?On the first basipod of the left fifth foot the row of denti-cles along the inner margin runs off onto the posterior surface justbeyond the center of the segment, leaving the distal part of the marginsmooth. The endopod is attached to the center of the inner marginof the second basipod and is bilobed at its tip. The base of the ter-minal chela of the exopod is enlarged to twice the diameter of thesegment to which it is attached and then abruptly narrowed at theorigin of the arms. The inner arm is widened at the base and thetip and narrowed between the two and the swelling at the tip is trilo-bate. The inner tooth on the outer arm is about one-fourth of thelength of the arm from its base, often still nearer to the base.Remarks.?These are the details that help to characterize thespecies and that are to be compared with those given below for U.darwinii, in order that the two species may be completely separated.UNDINULA DARWINII (Lubbock)Plate 19, Figures 256-259Undina danvinii Lubbock, Trans. Linn. Soc. London, vol. 23, p. 179, pi. 29, figs. 4,5, 18G0.Stations 4; 8; 9; 13; 19; 23; 27; 31; 63-68; 70; 71; 75-78; 80; 82;236 ; 3681 ; 3782 ; 3829 ; 3878 ; 3912 ; 3980 ; 4011 ; 4037 ; 4588 ; 4613 ; 4635
;
4638; 4644; 4648; 4671; 4681; 4700; 4705; 4707; 4708; 4713-4716;4722; 4730; 4734; 4742; 5134; 5155; 5185; 5190; 5199; 5233; 5320;5386 ; 5387 ; 5507. Reported in the Challenger, Carnegie, and Sibogaplankton lists. The following characters distinguish this from thepreceding species and will identify it
:
Female.?Head narrowed scarcely at all, with a somewhat pointedforehead ; the posterior corners of the metasome symmetrical, each ex-tending just beyond the center of the genital segment and angular atthe tip. In the urosome the genital segment is considerably wideranteriorly than the abdomen, but tapers to the same width posteriorly.It is not so thick as it is long, and it has a sharp spine on the posteriormargin at the center of the dorsal surface. The short setae on eachcaudal ramus are more than half as long as the longest one and the twolongest ones are curved like parenthesis marks.Male.?On the first basipod of the left fifth foot the row of denticlesalong the margin does not run off on to the dorsal surface but keepsalong the margin. The endopod is attached to the inner distal cornerof the second basipod and is not bilobed at its tip. The base of theterminal chela of the exopod is enlarged to almost twice the diameterof the segment to which it is attached, but it is not narrowed at the baseof the arms and keeps the same width throughout its length. Theinner arm is much widened at its base and tapers distally to an appar-
350 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
ent joint beyond the center. On the posterior surface on either sideof the joint is a small papilla tipped with a minute seta. The seg-ment beyond the joint is abruptly widened and armed with a stoutbifurcate process. The tooth on the inner margin of the outer arm isat or near the center. UNDINULA VULGARIS (Dans)Plate 19, Figure 260Undina vulgaris Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 22, 1849 ; UnitedStates Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, Crustacea, p.1092, 1853 ; pi. 77, fig. 8 a-d, 1855.Stations 15; 16; 27; 30; 313867; 38784037; 40864627; 46355102; 51055190; 51915309; 53195387; 53965553; 5578
3901; 3912; 39294538; 4588; 45924638; 4640; 46445120; 5126; 5133
; 3829
COPEPODS GATHERED BY ALBATROSS?WILSON 351Genus VETTORIA Wilson, 1924VETTORIA GRANULOSA (Giesbrecht)Corina granulosa Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 7, sem. 1, p.479, 1891 ; Fauna und Flora des Golfes von Neapel, monogr. 19, p. 645, pi. 49,figs. 39-45 ; pi. 50, figs. 53, 54, 1892.Stations 4663; 4952; 5232. This species appears in the Monaco(Rose) and Carnegie lists.Genus XANTHOCALANUS Giesbrecht, 1892XANTHOCALANUS GREENI FarranXanthocalanus greeni Farran, Ann. Rep. Fisheries, Ireland, 1902-03, pt. 2, app.2, p. 39, pi. 8, figs. 1-13, 1905.Stations 2219; 4665. Identified by Sars from the second of thesetwo Albatross stations. The first one is off the coast of New Jerseyand the other off the coast of Peru, making the first record from thePacific. It was also found at five stations in the Monaco plankton andis there fully described.XANTHOCALANUS PINGUIS FarranPlate 36, Figure 561Xanthocalanus pinguis Farran, Ann. Rep. Fisheries, Ireland, 1902-03, pt. 2,app. 2, p. 39, pi. 8, figs. 18-24 ; pi. 9, figs. 1-6, 1905.Station 4707; Marshall Islands. These two localities are both inthe Pacific Ocean and are the first record from that ocean. The spe-cies was found at a single station in the Monaco plankton from whichthe female is described. The female can be recognized by the distinctseparation of the fourth and fifth segments and the details of the fifthlegs (see figure 561).LIST OF NEW SPECIES DESCRIBED IN THIS PAPERAcartia hamata, 9Amallothrix invenusta, 9Arietellus tripartitus, $Calanopia sarsi, S 9Candacia turgida, 9Dysgamus paciflcus, $Eucalanus muticus, $ 9Euchirella grandicornis, $ 9Gaetanus curvispinus, S 9Gaetanus microcanthus, $ 9Labidocera albatross!, 9Labidocera insolita, $ 9Labidocera tenuicauda, $ 9Lophothrix sarsi, 9Macandrewella agassizi, $ 9
Pontella diagonalis, 9Pontella gracilis, 9Pontella pulvinata, $ 9Pontella surrecta, $ 9Pontellopsis albatrossi, 9Pontellopsis bitumida, S 9Pontellopsis digitata, 9Pontellopsis globosa, 9Pontellopsis laminata, 9 ; imma-ture $Pontellopsis sinuata, $ 9Pseudantbessius paciflcus, $ 9Scaphocalanus insolitus, 9Scolecocalanus spinifer, $ 9Stephos perplexus, $
LISTS OF COPEPODS COLLECTED, ARRANGED BYSTATIONS 7A. Surface Tow-Net Stations, 1887-88 8(Voyage around South America)
*1. Lat. 34?13' N, long. 74?13'30" W.; North Atlantic; November 22, 1887;
Euaugaptilus gibbusEucalanus attenuatusEucalanus elongatusEuchaeta acutaEuchaeta marinaHeterorhabdus papilliger
surface; 17 speciesLophothrix frontalisLucicutia flavicornisLucicutia grandisLucicutia tenuicaudaMctridia longaMetridia priuceps
Neocalanus tenuieornisParacalanus parvusPleuromamma gracilisPleuromamma xiphiasSapphirina nigromaculata
*2. Lat. 31?16' N., long. 71?50' W.; North Atlantic; November 23, 1887; surface;31 speciesAmallophora typicaCandacia simplexCephalophanes refulgensClausocalanus arcuicornisClyterunestra rostrataCorycaeus flaccusCorycaeus lautusDissetus palumboiEuchirella curticaudaEuchirella galeataGaetanus kruppii
Gaetanus milesGaidius pungensGaussia princepsHaloptilus longicornisHeterorhabdus norvegicusHeterorhabdus papilligerLubbockia aculeataLucicutia flavicornisMecynocera clausiMetridia princepsNannocalanus minor
Oithona similisOncaea minutaParacalanus parvusPareuchaeta tonsaPhyllopus bidentatusPleuromamma abdomi-nalisPleuromamma xiphiasScaphocalanus magnusUndeuchaeta major
?3. Lat. 18? 40' N., long. 63 e 30' W.; North Atlantic; November 27, 1887; surface;18 speciesAcartia negligensAegisthus mucronatusArietellus simplexCandacia bipinnataCandacia bispinosaEuchaeta spinosa
Labidocera acutifronsLabidocera agilisLucicutia flavicornisMecynocera clausiMicrosetella norvegicaNeocalanus robustior
Oithona similisParacalanus parvusPleuromamma gracilisPontella securiferScolecithricella bradyiScolecithricella dentata
*4. Lat. 16?54' N., long. 63? 12' W.; North Atlantic; November 28, 1887; surface;9 speciesClausocalanus arcuicornisGaussia princepsHaloptilus longicornis Metridia gerlacheiOithona plumiferaOithona similis Paracalanus parvusPseudocalanus minutusUndinula darwinii
7 Species from stations marked by an asterisk were determined by G. O. Sars ; stationsmarked with a dagger are accompanied by collecting data not appearing in the publisheddredging records (c/. footnote, p. 364).8 C. H. Townsend, Dredging and other records of the United States Fish CommissionSteamer Albatross, with bibliography relative to the work of the vessel, U. S. Fish Commis-sion Report for 1900, p. 477, 1901.352
COPEPODS GATHERED BY ALBATROSS?WILSON 353
*5. Lat. 13?34' N., long. 61?04' W.; North Atlantic; December 4, 1887; surface;13 speciesCandacia bipinnataCandacia bispinosaClausocalanus arcuicornisEucbaeta marinaEuchirella brevis
Gaetanus milesHaloptilus longicornisLabidocera detruncataLucicutia flavicornisNeocalanus gracilis
Neocalanus robustiorPontella securiferPontellina plumata
*6. Lat. 11?40' N., long. 58?33' W.; North Atlantic; December 5, 1887; surface;18 speciesArietellus armatusCandacia aethiopicaCandacia varicansCentropages violaceusEuchaeta marinaGaetanus miles
Haloptilus longicornisHaloptilus spinicepsMetridia gerlacheiMicrosetella norvegicaNannocalanus minorNeocalanus gracilis
Neocalanus robustiorOithona similisParacalanus parvusPleuromamma gracilisScolecithrix danaeUndinula caroli
'7. Lat. 8?04' N., long. 52?47' W.; North Atlantic; December 7, 1887; surface;25 speciesArietellus armatusAugaptilus longicaudatusCandacia aethiopicaCandacia bipinnataCandacia bispinosaCentropages calaninusCorycaeus agilisEuaetideus giesbrechtiEuaugaptilus filigerus
Gaetanus milesHaloptilus longicornisHeterostylites longicornisMecynocera clausiMetridia gerlacheiMetridia lucensMicrosetella norvegicaNeocalanus robustiorOculosetella gracilis
Oithona similisOncaea venustaParacalanus parvusPleuromamma gracilisPontellina plumataTemora longicornisUndinula caroli
*8. Lat. 3?22' S., long. 37?49' W.; South Atlantic; December 14, 1887; surface;9 speciesCalocalanus pavo Oculosetella gracilisClausocalanus arcuicornis Oithona similisMetridia lucens Paracalanus parvus Pleuromamma gracilisPseudocalanus minutusUndinula darwiuii
*9. Lat. 12?07' S., long. 37?17' W.; South Atlantic; December 18. 1887; surface;21 speciesAcartia negligensCalocalanus pavoCentropages calaninusCentropages furcatusCentropages violaceus
Euaugaptilus palumboiLabidocera detruncataLophothrix frontalisLucicutia flavicornisMecynocera clausiClausocalanus arcuicornis Metridia princepsClausocalanus furcatus Neocalanus gracilis
Oithona similisParacalanus aculeatusPontella danaeTemora longicornisTemora styliferaUndinula caroliUndinula darwinii
*10. Lat. 15?39' S., long. 38?32'54" W.; South Atlantic; December 26, 1887; surface;7 speciesCentropages calaninusCorycaeus lubbockiiMetridia longa Oithona spinirostrisParacalanus parvusPseudocalanus minutus Temora longicornis
354 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
?11. Lat. 23?08' S., long. 41?34' W.; South Atlantic; December 30, 1887; surface;9 speciesLucicutia flavicornisMecynocera clausiMetridia gerlachei Metridia lucensOithona linearisOithona similis Paracalanus parvusPleuromamma gracilisPseudocalanus minutus
*12. Lat. 45?22' S., long. 64?20' W.; South Atlantic; January 15, 1888; surface;13 speciesCalanus flnmarchicusCalanus tonsusCentropages calanlnusCentropages furcatusCentropages violaceus
Clausocalanus furcatusLabidocera detruncataMecynocera clausiOithona similisOncaea minuta
Oncaea venustaParacalanus aculeatusTemora discaudata
?13. Lat. 48?37' S., long. 65?46' W.; South Atlantic; January 16, 1888; surface;19 speciesAcrocalanus gracilisCalanus flnmarchicusCentropages calaninusCorycaeus flaccusDisseta palumboiEucalanus attenuatusLabidocera nerii
Mecynocera clausiMetridia gerlacheiMetridia lucensMicrosetella norvegicaParacalanus aculeatusPhaenna spiniferaPleuromamma gracilis
Pontella securiferPseudocalanus minutusScolecithrix danaeTemora discaudataUndinula darwinii
*14. Lat. 51?34'23" S., long. 68?00' W.; east of Patagonia; January 17, 1888; sur-face; 23 speciesCalocalanus pavoCandacia simplexCentropages calaninusCopilia denticulataCorycaeus clausiCorycaeus dubiusCorycaeus lautusEuchaeta marina
Farranula carinataFarranula gibbulaFarranula gracilisLabidocera detruncataLucicutia flavicornisMecynocera clausiMetridia gerlacheiMetridia lucens
Microsetella norvegicaParacalanus aculeatusParacalanus parvusPleuromamma gracilisPontella lobiancoiPseudocalanus minutusSapphirina pyrosomatis
*15. Lat. 22?54' S., long. 77?10' W.; South Pacific, off Chile; February 24, 1888;surface; 40 speciesAcartia danaeAcartia longiremisCandacia bipinnataCandacia bispinosaCandacia simplexCentropages calaninusCentropages furcatusCopilia mirabilisCopilia quadrataCorycaeus pumilusCorycaeus speciosusEuaetideus giesbrechtiEucalanus attenuatusEucalanus elongatus
Eucalanus monachusEuchaeta marinaEuchirella bellaEuchirella brevisEuchirella venustaFarranula gibbulaGaetanus milesHaloptilus longicornisHeterostylites longicornisLabidocera acutifronsLabidocera neriiMicrosetella norvegicaNeocalanus robustiorPareuchaeta grandiremis
Pontella tenuiremisPontellina plumataPontellopsis regalisPseudocalanus minutusSapphirina auronitensSapphirina nigromaculataSapphirina opalinaScolecithrix danaeTemora discaudataUndeuchaeta plumosaUndinula caroliUndinula vulgaris
COPEPODS GATHERED BY ALBATROSS?WILSON 355
*16. Lat. 04?21' S, long. 81?59' W.; off coast of Peru; March 1, 1888; surface;43 speciesAcrocalanus gibberAcrocalanus gracilisAcrocalanus monachusArietellus giesbrechtiCentropages calaninusCentropages furcatusCorycaeus agilisEucalanus attenuatusEucalanus elongatusEucalanus monachusEuchaeta marinaEuchirella brevisEuchirella rostrataGaetanus milesHeterostylites longicornis
Labidocera acutaLabidocera acutifronsLabidocera detruncataLabidocera euchaetaMecynocera clausiMetridia lucensMicrosetella norvegicaNannocalanus minorNeocalanus gracilisNeocalanus robust iorOncaea venustaParacalanus aculeatusParacalanus parvusPareuchaeta grandiremisPareuchaeta hansenii
Phaenna spiniferaPleuromamma gracilisPontella securiferPontellopsis armataPseudocalanus minutusPseudochirella obtusaRhincalanus cornutusScolecitbrix danaeTemora discaudataTemora longicornisTemora styliferaUndeuchaeta plumosaUndinula vulgaris
*18. Lat. 01?03' N? 80?15' W.; off coast of Ecuador; March 3, 1888; surface;17 speciesDisseta palumbolEuchaeta marinaGaetanus milesGaidius pungensHaloptilus longicornis
Labidocera detruncataLophothrix frontalisMetridia princepsNeocalanus gracilisParacalanus aculeatus
Pleuromamma gracilisPleuromamma robustaPleuromamma xipbiasScaphocalanus amnisScolecithrix danaeHeterorhabdus papilliger Pareuchaeta tonsa
*19. Lat. 07?37' N.# long. 78?46'30" W.; off west coast of Colombia; March 5, 1888;surface; 20 speciesCandacia bispinosaCentropages calaninusClausocalanus arcuicornisClausocalanus furcatusEuchaeta marinaEuchaeta spinosaEuchirella brevis
Macrosetella gracilisMecynocera clausiMetridia gerlacheiMicrosetella norvegicaOithona similisOncaea minutaOncaea venusta
Paracalanus parvusPleuromamma borealisPleui*omamma gracilisPontella securiferUndinula caroliUndinula darwinil
20. Lat. 07?57' N., long. 78?55' W.; Gulf of Panama; March 5, 1888; surface;6 speciesClausocalanus arcuicornis Mecynocera clausiMacrosetella gracilis Oithona similis Paracalanus parvusPseudocalanus minutus
?21. Lat. 08?05' N, long. 78?51' W.; Gulf of Panama; March 5, 1888; surface;10 speciesCentropages furcatus Microsetella norvegica Pleuromamma gracilisMacrosetella gracilis Oithona similis Pseudocalanus minutusMecynocera clausi Oncaea venustaMetridia gerlachei Paracalanus parvus
843804-
356 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
*22. At anchor off Perlas Islands; Gulf of Panama; March 5, 1888; surface;12 speciesCentropages calaninusClausocalanus arcuicornisEucalanus attenuatusEuchaeta spinosa
Metridia lucensMicrosetella norvegicaOithona similisOncaea minuta
Oncaea venustaParacalanus parvusPleuromamma gracilisPseudocalanus minutus
?23. Lat. 8?44' N., long. 79?09' W.; Gulf of Panama; March 6, 1888; surface;
Centropages calaninusCentropages furcatusCentropages violaceusClausocalanus arcuicornis Paracalanus parvus
11 speciesClausocalanus furcatusMicrosetella norvegicaOithona linearis Pleuromamma gracilisPseudocalanus minutusUndinula darwinii
24. Lat. 06?44' N., long. 80?27' W.; south of Panama; March 31, 1888; surface;23 speciesAcartia danaeAcrocalanus gracilisCandacia bipinnataCandacia bispinosaCentropages calaninusCentropages furcatusCorycaeus clausiCorycaeus flaccus
Corycaeus giesbrechtiCorycaeus longistylisCorycaeus lubbockiiCorycaeus ovalisCorycaeus speciosusEuchaeta marinaFarranula gibbulaLucicutia flavicornis
Lucicutia lucidaOithona similisOncaea venustaParacalanus aculeatusPleuromamma gracilisPontellina plumataPseudocalanus minutus
*25. Lat. 04? 18' N., long. 85? 14' W.; northeast of Galapagos Islands; April 1,1888; surface; 13 speciesClausocalanus arcuicornis Microsetella norvegicaEucalanus attenuatusEucalanus elongatusMecynocera clausiMetridia lucens
Oithona similisOithona spinirostrisOncaea minutaParacalanus parvus
Pleuromamma gracilisPseudocalanus minutusSapphiriua lactens
*26. Lat. 00? 30' N. long. 88?37'30" W.; off Galapagos Islands; April 3, 1888;surface; 19 speciesCandacia aethiopicaCentropages calaninusClausocalanus arcuicornisClausocalanus furcatusCorycaeus longistylisEucalanus attenuatusEucalanus crassus
Euchirella venustaHaloptilus longicornisLophothrix frontalisMecynocera clausiMetridia lucensMicrosetella norvegicaOithona similis
Phyllopus bidentatusPontelliua plumataScolecithrix danaeScottocalanus securifronsUndeuchaeta plumosa
*27. Lat. 00?24' S., long. 89?06' W.; off Galapagos Islands; April 4,50 species ; surface;Arietellus armatusCandacia aethiopicaCandacia simplexCentropages calaninusCentropages furcatus
Chirundina streetsiCorycaeus agilisCorycaeus speciosusEucalanus attenuatusEucalanus crassus
Eucalanus elongatusEuchaeta marinaEuchirella brevisEuchirella galeataEuchirella messinensis
COPEPODS GATHERED BY ALBATROSS?WILSON 357
*27. Lat. 00?24' S., long. 89?06' W.; off Galapagos Islands; April 4, 1888; surface;50 species?ContinuedEuchirella rostrataHaloptilus mucronatusHaloptilus spinicepsLabidocera acutaLabidocera agilisLabidocera detruncataLabidocera minutaLophothrix frontalisMecynocera clausiNannocalanus minorOithona similisOncaea minuta
Paracalanus aculeatusParacalanus parvusPareuchaeta tumidulaPleuromamma abdoini-nalisPleuromamma gracilisPontella danaePontellina plumataPontellopsis regalisPontellopsis strenuaRbincalanus cornutusSapphirina angusta
Sapphirina auronitensSapphirina opalinaScolecithrix danaeScottocalanus securifronsStephos perplexusTemora discaudataTemora longicornisTemora styliferaUndeuchaeta plumosaUndinula caroliUndinula darwiniiUndinula vulgaris
*29. Lat. 00?46' S., long. 89?42' W.; Galapagos Islands; April 15, 1888; surface;8 speciesCalanus flnmarchicus Metridia lucensClausocalanus arcuicornis Oithona linearisMecynocera clausi Oithona similis Paracalanus parvusPseudocalanus minutus
*30. Lat. 00?29' S., long. 89?54'30" W.; off Galapagos Islands; April 15, 1888;surface; 30 speciesAcrocalanus gracilisCandacia aethiopicaCandacia bipinnataCandacia bispinosaCandacia simplexCentropages calaninusClausocalanus furcatusCorycaeus furciferCorycaeus longistylisCorycaeus ovalis
Eucalanus attenuatusEuchaeta marinaFarranula gibbulaFarranula gracilisHaloptilus chierchiaeLabidocera detruncataLabidocera minutaNeocalanus gracilisParacalanus aculeatusParacalanus parvus
Pontella danaePontellina plumataPontellopsis regalisSapphirina auronitensScolecithrix danaeScottocalanus securifronsTemora discaudataTemora longicornisTemora styliferaUndinula vulgaris
k31. Lat. 00?08' S., long. 90?06' W.; south of Galapagos Islands; April 15, 1888;surface; 28 speciesAcartia danaeAcrocalanus gracilisCalanus cristatusCalanus hyperboreusCandacia aethiopicaCandacia norvegicaCandacia simplexCorycaeus longistylisEucalanus attenuatusEucalanus elongatus
Eucalanus mucronatusEuchaeta marinaEuchaeta spinosaLabidocera detruncataLabidocera euchaetaLabidocera minutaLabidocera wollastoniMetridia longaNannocalanus minorOncaea minuta
Oncaea venustaPontella danaePontella securiferPontellopsis lubbockilPontellopsis villosaUndinula caroliUndinula darwiniiLTndinula vulgaris
358 BULLETIN 100, UNITED STATES NATIONAL MUSEUMB. TANNER INTERMEDIATE TOW-NET STATIONS, 1893 [1894] 9(California coast, Bering Sea, and coast of Washington)
*32. Lat. 37?29' N., long. 123?01'2Q" W.; off the coast of California; April 27, 1893;100 fathoms to surface; 10 speciesCandaeia aethiopica Lucicutia flavicornis Pontellopsis regalisClausocalanus furcatus Mecynocera clausi Undeuchaeta majorEuchaeta marina Paracalanus aculeatusLabidocera detruncata Paracalanus parvus
*33. Lat. 60? 22' N., long. 171 ?42' W.; Bering Sea; August 3, 1893; 25 fathoms tosurface; 12 speciesCalanus cristatus Eucalanus attenuatus Oithona similisCalanus finmarchicus Macrosetella gracilis Paracalanus parvusCalanus hyperboreus Mecynocera clausi Pleuromamma gracilisCorycaeus speciosus Microsetella norvegicus Pseudocalanus minutus
?34. Lat. 60?06' N? long. 171?25' W.; west of Alaska; August 3, 1893; 25 fathomsto surface; 19 speciesAcartia danae Metridia longa Oncaea venustaCalanus finmarchicus Microsetella norvegica Paracalanus parvusCentropages violaceus Microsetella rosea Pleuromamma abdomi-Corycaeus agilis Oculosetella gracilis nalisCorycaeus catus Oithona plumifera Pleuromamma gracilisCorycaeus pumilus Oithona similis Pseudocalanus minutusFarranula rostrata Oncaea notopa
*35. Lat. 57? 58' N., long. 170? 09' W.; Bering Sea; August 4, 1893; 30 fathoms tosurface; 13 speciesCalanus cristatus Corycaeus pumilis Oitbona similisCalanus finmarchicus Mecynocera clausi Paracalanus parvusClausocalanus furcatus Metridia brevicauda Pseudocalanus minutusCorycaeus agilis Microsetella norvegicaCorycaeus catus Oculosetella gracilis36. Lat. 59?39' N., long. 173?53' W.; west of Alaska; August 6, 1893; 43 fathomsto surface; 17 speciesAcartia danae Heterorhabdus spinifrons Oncaea minutaCanthocalanus pauper Labidocera detruncata Oncaea venustaCentropages violaceus Lucicutia flavicornis Paracalanus parvusClausocalanus arcuicornis Mecynocera clausi Pleuromamma gracilisClytemnestra rostrata Metridia brevicauda Pseudocalanus minutusCorycaeus catus Microsetella rosea37. Lat. 59?55' N., long. 174? 17' W.; Bering Sea; August 6, 1893; 44 fathoms tosurface; 3 speciesCalanus cristatus Calanus finmarchicus Calanus belgolandicus38. Lat. 54?45' N., long. 169?06' W.; Bering Sea; August 9, 1893; 40 fathoms tosurface; 2 speciesCalanus cristatus Calanus finmarchicusTownsend, C. H., Dredging and other records of the United States Fish CommissionSteamer Albatross, with bibliography relative to the work of the vessel, U. S. Fish Coniru.Rep. for 1900, p. 482, 1901.
COPEPODS GATHERED BY ALBATROSS?WILSON 35939. Lat. 56?10' N., long. 163?26' W.; off Alaska Peninsula; August 10, 1893; 30fathoms to surface; 24 speciesAcartla clausii Corycaeus agilisAcartia danae Corycaeus catusCandacia aethiopica Corycaeus dubiusCandacia curta Corycaeus longistylisCandacia simplex Corycaeus robustusCanthocalanus pauper Eucbirella brevisCentropages violaceus Farranula carinataClausocalanus arcuicornis Farranula rostrata
Mecynocera clausiNannocalanus minorOncaea minutaOncaea similisOncaea venustaParacalanus parvusPhaenna spiniferaSapphirina auronitens
41. Lat. 54?38' N., long. 175?27' W.; north of Aleutian Islands; August 20, 1893;125 fathoms to surface; 37 speciesAcartia danaeAcrocalanus gracilisCalanus cristatusCalanus flnmarcbicusCandacia aethiopicaCandacia bipinnataCandacia bispinosaCandacia norvegicaCandacia simplexCanthocalanus pauperCentropages calaninusCentropages violaceusClausocalanus furcatus
Corycaeus catusCorycaeus flaccusCorycaeus longistylisCorycaeus pacificusCorycaeus pumilusCorycaeus speciosusEucalanus attenuatusEucalanus elongatusEuchaeta spinosaFarranula carinataFarranula rostrataLubbockia aculeataMecynocera clausi
Metridia longaMetridia lucensMicrosetella roseaNannocalanus minorOncaea con iferaOncaea venustaParacalanus aculeatusPareuchaeta ereblPleuromamma gracilisPseudocalanus minutusSapphirina auronitens
42. Lat. 55?46' N, long. 172?44' W.; north of Aleutian Islands; August 21, 1893;250 fathoms to surface; 24 speciesAcrocalanus gracilisCalanus cristatusCalanus finmarchicusCandacia bispinosaCandacia simplexCanthocalanus pauperCorycaeus flaccusCorycaeus longistylis
Eucalanus attenuatusEuchaeta marinaEuchaeta spinosaFarranula carinataGaidius tenuispinusHeterorhabdus norvegicusMetridia longaMetridia lucens
Microsetella roseaOculosetella gracilisOithona similisOncaea similisOncaea venustaParacalanus parvusPareuchaeta gracilisPleuromamma gracilis
43. Lat. 54? 59' N., long. 171 ?49' W.; north of Aleutian Islands; August 22, 1893;100 fathoms to surface; 16 speciesCalanus cristatusCandacia bipinnataCentropages violaceusCorycaeus flaccusCorycaeus longistylisCorycaeus speciosus
Eucalanus attenuatusEucalanus elongatusFarranula carinataFarranula gibbulaFarranula rostrataMacrosetella gracilis
Microsetella roseaNannocalanus minorOithona plumiferaOncaea similis
360 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
41. Lat. 54?44' N., long. 165?42' W.; north of Aleutian Islands; September 1, 1893;50 fathoms to surface; 22 speciesAcartia danaeCalanus cristatusCorycaeus catusCorycaeus longistylisCorycaeus speciosusEucalanus attenuatusEucalanus elongatusEuchaeta marina
Euchirella curticaudaFarranula carinataFarranula gibbulaLubbockia aculeataLucicutia flavicornisMecynocera clauslMicrosetella roseaNannocalanus minor
Neocalanus robustiorOithona pluiniferaOithona simllisOncaea venustaParacalanus parvusSappbirina auronitens
45. Lat. 48?14'30" N, long. 122? 58' W.; off coast of Washington; April 30, 1894;4 fathoms to surface; 9 speciesAcrocalanus gracilis Euchaeta marinaClausocalanus arcuicornis Farranula gibbulaEucalanus elongatus Microsetella norvegica Microsetella roseaOithona similisOncaea similisC. TOWNSEND INTERMEDIATE AND SURFACE TOW-NET STATIONS,1895 ao(Bering Sea)46. Lat. 55? 08' N., long. 169? 08' W.; Bering Sea; August 5, 1895; 200 fathoms andsurface; 13 speciesAcartia danaeCalanus cristatusCalanus finmarchicusCalocalanus styliremisCorycaeus lubbockii
Eucalanus attenuatusEuchaeta marinaFarranula gibbulaFarranula rostrataOithona linearis
Oithona similisOncaea venustaPseudocalanus minutus
47. Lat. 55?36' N., long. 170?45' W.; Bering Sea; August 7, 1895; 100 fathoms andsurface; 11 speciesAcartia danaeClausocalanus furcatusFarranula gibbulaFarranula rostrata
Lubbockia aculeataMicrosetella roseaNannocalanus minorOithona linearis
Oithona similisOncaea venustaParacalanus parvus
48. Lat. 55? 10' and 11' N., long. 170?56' and 171?13' W; Bering Sea; August 7, 1895;150 fathoms, 1 fathom, and surface; 21 speciesAcrocalanus gracilisCalanus cristatusCalanus finmarchicusCandacia simplexCentropages furcatusCorycaeus lubbockiCorycaeus speciosus
Eucalanus attenuatusEucalanus elongatusEucalanus subcrassusEuchaeta marinaEuchaeta spinosaFarranula rostrataGaidus tenuispinus
Labidocera acutaMetridia longaPbaenna spiniferaPleuromamma gracilisRhincalanus cornutusTemora styliferaUndinula vulgaris
io Townsend, C. H., Dredging and other records of the United States Fish CommissionSteamer Albatross, with bibliography relative to the work of the vessel, U. S. Fish Com-mission Report for 1900, pp. 483, 484, 1901.
COPEPODS GATHERED BY ALBATROSS?WILSON 36149. Lat. 55?53' N, long. 171
Acartia danaeCalanus cristatusCalanus flnmarchicusCandacia bipinnataCandacia bispinosaCandacia simplexCantbocalanus pauperCentropages calaninusClausocalanus arcuicornis
40' W.; Bering Sea; August 8, 1895; 200 fathoms and10 feet; 26 speciesCorycaeus speciosusEucalanus attenuatusEucalanus elongatusEucalanus rnucronatusFarranula gibbulaFarranula rostra taGaetanus armlgerHeterorhabdus papilligerLucicutia tenuicauda
Metridia longaMicrosetella norvegicaNeocalanus gracilisOithona siniilisOncaea venustaPleuromarnma abdoini-nalisSapphirina auronitensSapphirina opalina50. Lat. 55?44' N., long. 171?17' W.; Bering Sea; August 8, 1895; 20 feet; 5 speciesCalanus cristatusCalanus flnmarchicus Centropages calaninusFarranula rostrata Metridia longa51. Lat. 56?15' N? long. 172?35' W; Bering Sea; August 10, 1893; 43 fathoms;
Acartia danaeCalanus cristatusCandacia simplexCantbocalanus pauper
12 speciesEucalanus elongatusFarranula gibbulaFarranula rostrataMetridia longa
Oithona similisOncaea minutaParacalanus parvusScolecithricella bradyi52. Lat. 56 ? 13' N., long. 172? 20' W.; Bering Sea; August 10, 1895; 50 fathoms andsurface; 26 speciesAcartia danaeAcrocalanus gracilisCalanus cristatusCalanus flnmarchicusCandacia aethiopicaCandacia simplexCanthocalanus pauperClausocalanus furcatusCorycaeus longistylis
Corycaeus speciosusEucalanus attenuatusEucalanus elongatusEuchaeta marinaEuchaeta spinosaFarranula gibbulaFarranula rostrataHeterorhabdus papilligerLucicutia flavicornis
Mecynocera clausiMetridia longaMicrosetella roseaOitbona linearisOncaea venustaPhaenna spiniferaPseudocalanus miuutusScolecithrix danae
53. Lat. 55?23' N., long. 170?31' W.; Bering Sea; August 11, 1895; 48 fathoms and
Acartia danaeAcrocalanus gracilisCandacia aethiopicaCentropages calaninusCentropages violaceusClausocalanus arcuicornis
surface; 18 speciesCorycaeus speciosusEuchaeta marinaFarranula carinataFarranula gibbulaFarranula rostrataMicrosetella norvegica
Nannocalanus minorOithona linearisOncaea venustaPseudocalanus minutusScolecithrix danaeSpinocalanus abyssalis
54. Lat. 54?54' N., long. 168? 59' W.; Bering Sea; August 12, 1895; 25 fathoms andsurface; 18 speciesAcartia danaeCalocalanus pavoCandacia aethiopicaCandacia varicansCopilia denticulataCorycaeus catus
Euchaeta marinaFarranula gibbulaFarranula rostrataMecynocera clausiMicrosetella roseaOithona linearis
Poracalanus aculeatusParacalanus parvusPhaenna spiniferaSapphirina auronitensSapphirina lactensScolecithrix danae
362 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM
55. Latitude and longitude not given; between stations 54 and 57; Bering Sea;August 13, 1895; 30 fathoms; 22 speciesAcartia danaeCanthocalanus pauperCentropages violaceusCorycaeus flaccusCorycaeus longistylisCorycaeus lubbockliEuealanus attenuatusEuchaeta marina
Farranula carinataFarranula gibbulaFarranula rostrataLucicutia flavicornisMicrosetella roseaNannoealanus minorNeocalanus gracilisOithona linearis
Oithona similisOncaea similisParacalanus parvusPseudocalanus minutusSapphirina auronitensScolecithrix danae
56. Latitude and longitude not given; between stations 54 and 57; Bering Sea;August 18, 1895; 290 fathoms and surface; 3 speciesFarranula rostrata Gaetanus miles Scolecithrix danae
57. Lat. 54?17' N., long. 168?53'30" W.; Bering Sea; August 19, 1895; 50 fathomsand surface; 29 speciesAcartia danaeCalanus cristatusCalanus finmarchicusCalanus helgolandicusCandacia aethiopicaCandacia simplexCanthocalanus pauperCentropages ealaninusCentropages violaceusClausocalanus arcuicornls
Corycaeus longistylisCorycaeus lubbockiiCorycaeus speciosusEuealanus attenuatusEuealanus elongatusEuchaeta marinaFarranula carinataFarranula gibbulaFarranula gracilisFarranula rostrata
Lucicutia flavicornisMetridia longaMicrosetella roseaNannoealanus minorOithona similisOncaea minutaOncaea venustaParacalanus parvusScolecithrix danae
58. Latitude and longitude not given; between stations 57 and 59; Bering Sea;August 19, 1895; surface; 8 speciesFarranula carinataFarranula gibbulaFarranula gracilis Farranula rostrataOithona similisParacalanus aculeatus Sapphirina auronitensScolecithrix danae
59. Haul apparently repeated ; location of first trial not stated, second trial lati-tude 55?19' N., longitude 168?11' W.; and lat. 55?11' N., long. 167?56' W., BeringSea; August 20, 1895; 200 fathoms and surface; 27 speciesAcartia danaeCandacia simplexCanthocalanus pauperCentropages ealaninusCentropages violaceusCorycaeus flaccusCorycaeus furciferCorycaeus lautusCorycaeus longistylis
Corycaeus lubbockiiEuealanus monachusEuchaeta marinaFarranula carinataFarranula gibbulaFarranula gracilisFarranula rostrataLucicutia flavicornisMetridia longa
Neocalanus gracilisOithona linearisOithona similisOncaea venustaParacalanus parvusPhaenna spiniferaPseudocalanus minutusSapphirina auronitensScolecithrix danae
COPEPODS GATHERED BY ALBATROSS?WILSON 36360. Latitude and longitude not given; same day as, and near station 59; BeringSea; August 20, 1895; 70 fathoms and surface; 30 speciesAcartia danaeCalanus cristatusCandacia aethiopicaCandacia simplexCanthocalanus pauperCentropages calaninusClausocalanus arcuicornisCopilia denticulataCorycaeus catusCorycaeus flaccusCorycaeus furcifer
Corycaeus lautusCorycaeus longistylisCorycaeus lubbockiiEuchaeta marinaFarranula carinataFarranula gibbulaFarranula gracilisFarranula rostrataLucicutia flavicornisMetridia longaNeocalanus gracilis
Oithona similisOithona spinirostrisOncaea venustaPleuromamma abdomi-nalisPleuromamma xiphiasPseudocalanus minutusSapphirina auronitensScolecithrix dauae
61. Latitude and longitude not given; Bering Sea; August 21, 1895; 50 fathomsand surface; 10 speciesCandacia simplexCanthocalanus pauperCorycaeus typicusFarranula gibbula
Farranula rostrataLucicutia flavicornisOithona linearisParacalanus aculeatus
Pseudocalanus minutusScolecithrix danae
62. Latitude and longitude not given; Bering Sea; August 21, 1895; 30 fathomsand surface; 21 speciesAcartia danaeCandacia bispinosaCephalophanes refulgensClausocalanus arcuicornisCorycaeus longistylisCorycaeus lubbockiiCorycaeus typicus
Farranula carinataFarranula gibbulaFarranula gracilisFarranula rostrataMecynocera clausiMicrosetella roseaOithona similis
Oncaea minutaOncaea similisOncaea venustaParacalanus paryusPseudocalanus minutusSapphirina auronitensScolecithrix danae
63. Latitude and longitude not given; Bering Sea; August 22, 1895; 20 fathomsand surface; 32 speciesAcartia danaeAcartia longiremisAetideus armatusCandacia aetbiopicaCandacia bispinosaCentropages calaninusCentropages violaceusClausocalanus arcuicornisCorycaeus flaccusCorycaeus lautusCorycaeus longistylis
Corycaeus lubbockiiCorycaeus oralisCorycaeus typicusFarranula carinataFarranula gibbulaFarranula gracilisFarranula rostrataLucicutia flavicornisMecynocera clausiMicrosetella norvegicaMicrosetella rosea
Oithona linearisOithona similisOncaea minutaOncaea venustaParacalanus parvusPleuromamma gracilisPleuromamma robustaRbincalanus cornutusSapphirina auronitensUndinula darwinli
64-474. Stations included in this series and recorded under various species inthe text are a part of the so-called Pacific Cable Survey of 1S91 and appearin regular order with the hydrographic stations, 2718-3129, to which they cor-respond (see section E of these lists, p. 423)
364 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUMD. DREDGING AND TRAWLING STATIONS, 1884-1909 u(Atlantic and Pacific)2195. Lat. 39?44' N., long. 70?03' W.; off Cape Hatteras; August 5, 1884; surface;22 speciesCalanus hyperboreusCandacia pachydactylaCorycaeus speciosusEuchirella rostrataGaetanus kruppiiGaidius brevispinusGaidius tenuispinusLabidocera acutifrons
Lucicutia curtaLucicutia grandisLucicutia ovalisMetridia longaNeocalanus gracilisOithona robustaOithoua similisParacalanus parvus
Pareuchaeta norvegicaPleuromamma gracilisPleuroniamrna robustaPontellina plumataScolecithrix danaeUndeuchaeta plumosa
11 Smith, Sanderson, Lists of dredging stations in North American waters from 1867 to1887, Ann. Rep. Commissioner of Fish and Fisheries for 1886 [1888].?Townsend, C. H.,Dredging and other records of the United States Fish Commission Steamer Albatross, withbibliography relative to the work of the vessel, U. S. Fish. Comm. Rep. for 1900 [1901] ;Records of the dredging and other collecting stations of the U. S. Fish Commission SteamerAlbatross In 1901 and 1902, U. S. Fish Comm. Rep. for 1902 [1903].?Fassett, Harry C,Records of the dredging and other collecting and hydrographic stations of the U. S. Fish-eries Steamer Albatross in 1903, D. S. Fish Comm. Rep. for 1903 [1904] ; Dredging andhydrographic records of the U. S. Fisheries Steamer Albatross for 1904 and 1905, Bur.Fish. Doc. No. 604, 1906 ; Dredging and hydrographic records of the U. S. FisheriesSteamer Albatross for 1906, Bur. Fish. Doc. No. 621, 1907 ; Dredging and hydrographic rec-ords of the U. S. Fisheries Steamer Albatross during the Philippine Expedition, 1907-1910,Bur. Fish. Doc. No. 741, 1910.[At some of the listed Philippine stations, the depth of the tow or haul does not corre-spond with the information in the published dredging records. Some important dataentered on the original labels of at least 17 plankton samples seem to have been omittedfrom those records. The stations in question together with date and unpublished data are
:
Unpublished data taken frovi original label of sample.2' o. p., surf., time not stated.K. 2, surf., time not stated.also 10 ft. cir. net [int. 4 or 5] at 3 p. m. for 45 mlns. at 800 fmsbottle label gives depth of tow as 10 ft.K. 2, surf., 30 mins.K. 2, surf., 15 mins.K. 2, 10 ft., time not stated.K. 2, 10 ft., time not stated.K. 2, 15 ft., 20 mins.K. 2, 15 ft., time not stated.K. 2, 15 mins., depth not stated.K. 2, surf., set in tidal current, 7-9 p. m.K. 5, tow was made at 7:30 p. m.K. 5, K. 2, 10 ft., 20 mins, 1:30 p. m.K. 2, below surf., 20 mins.K. 2, below surf., 1 hr., 10 mins.K. 2, surf., 50 mins.Twenty-two additional Philippine stations are recorded in lists of identifications (p. 410et sea.) showing that townet hauls were made at each of them, although no indication ofthe fact appears in the published station records cited above. These stations are a partof the foregoing series and are numbered : 5267, 52S4, 5285, 5296, 5341, 5346, 5349, 5357,5399, 5410, 5412, 5415, 5423, 5424, 5425, 54G0, 5538, 5640, 5646, 5655, 5657, 5661.There are undoubtedly other stations for which the published data are incomplete, butthese may never be discovered, as Dr. Wilson, when he subdivided a sample, wrote newlabels for the component parts, In most cases not retaining the original field label.
?
W. L. S.]
Station
COPEPODS GATHERED BY ALBATROSS?WILSON 3652219. Lat. 39?46'22" N., long. 69?29' W.; off New Jersey coast; August 23, 1884;surface; 7 speciesAugaptilus longicaudatus Pareuchaeta norvegica Xanthocalanus greeniEuaugaptilus flligerus Scaphocalanus magnusEuchirella rostrata Temora turbinata
2236. Lat. 39?11' N, long. 72?08'30" W.; south of Long Island; September 13, 1884;surface; 10 speciesCandacia armata Metridia brevicauda Pareuchaeta norvegicaCentropages bradyi Metridia longa Rhincalanus cornutusEuchaeta marina Metridia lucensHeterostylites longicornis Nannocalanus minor
2396. Lat. 28?34' N., long. 86?48' W.; Gulf of Mexico; March 13, 1885; surface;14 speciesAnomalocera manicauda Encalanus attenuatus Scolecithrix danaeCalanopia elliptica Euchaeta marina Temora longicornisOalanopia minor Pontella lobiancoi Temora styl iferaCaligus rapax Pontella meadilCryptopontius brevifurca- Sapphirina lactenstus Sapphirina opalina2563. Lat. 39?18'30" N, long. 71?23'30" W.: off coast of Delaware; August 11, 1885;1 species (c/. p. 334)Scolecithricella ovata2770. Lat. 48?37' S., long. 65?46' W., off Santa Cruz Territory, Argentine Pata-gonia; January 16, 1888; surface; 2 speciesCalanus flnmarchicus Drepanopus forcipatus
27S2. Lat. 00?37' S.; long. 81?00' W.; off coast of Ecuador; March 2, 1888; surface;2 speciesEucalanus attenuatus Temora stylifera
2806. Lat. 00?30' N., long. 88?37'30" W.J Galapagos Islands; April 3, 1888;surface; 9 speciesCorycaeus agills Farranula gracilis Oithona simillsCorycaeus catus Labidocera acutifrons Oncaea venustaCorycaeus speciosus Oithona robusta Sapphirina auronitens
2807. Lat. 00?24' S., long. 89?06' W.; off Galapagos Islands; April 4, 1888; surface1 speciesNeocalanus robustior
2818. Lat. 00?29' S., long. 89?54'3G" W.; off Galapagos Islands; April 15, 1885;surface; 1 speciesCorycaeus elausi
366 BULLETIN 100, UNITED STATES NATIONAL MUSEUM2859. Lat. 55?20' N.f long. 136?20' W.; Gulf of Alaska; August 29, 1888; surface;11 speciesCalanus crlstatus Lophothrix frontalis Pareuehaeta gracilisCalanus flnniarchicus Megacalanus princeps Pareuehaeta tonsaEucalanus attenuatus Metridia longa Pleuromamina abdonii-Gatdius brevispinus Neocalanus robustior nalis2861. Lat. 51?14' N., long. 129?50' W.; Sitka to Columbia River; August 31, 1888;surface; 7 speciesCalanus cristatus Gaidius brevispinus Pseudeuchaeta brevlcaudaCalanus finmarchicus Metridia longaEuchaeta spinosa Pareuehaeta erebi2937. Lat. 33?04'30" N, long. 117?42' W.; off southern California; February 4,1889; surface; 3 speciesPontellopsis arraata Pontellopsis sinuata Sapphirlna angusta3226. Lat. 55?01' N., long. 167?25' W.; Bering Sea; May 23, 18S0; surface; 1 speciesLepeophtheirus parviventris3382. Lat. 6?21' N., long. 80?41' W.; off Panama; March 7, 1891; surface; 4 speciesCentraugaptilus horridus Rhincalanus nasutus Undeuchaeta majorEucalanus elongatus3412. Lat. 1?23' N., long. 91?43' W.; off Galapagos Islands; April 4, 1891; surface;5 speciesCandacia bispinosa Euchaeta marina Pontella danaeEucalanus elongatus Labidocera acuta3602. Lat. 56?32' N? long. 172?40' W., Bering Sea; August 10, 1895; surface;lat. 55?52' N., long. 171 ?4' W., Bering Sea; August 11, 1895; 3 feet below surface;6 species nCalanus cristatus Calanus hyperboreus Metridia longaCalanus finmarchicus Eucalanus elongatus Pseudophaenna typica3681. Lat. 28?23' N., long. 126?57' W.; off San Francisco; August 27, 1899; surface;4 speciesParacalanus parvus Sapphirina metallina Undinula darwiniiPseudocalanus minutus3683. Lat. 9?57' N, long. 137 ?47' W.; north of Marquesas Islands; September 5,1899; surface; 4 speciesAcrocalanus monachus Dysgamus paeiiicus Pontella danaeCeiitropages furcatus
12 [It cannot now bo determined whether this particular tow was made at a dredging orhydrographic station. The two stations of this number are about one day and less than50 miles apart in the Bering Sea. The position of the dredging station is given first, fol-lowed by that of the hydrographic station and the species identified by Dr. Wilson fromthe material collected at station 3G02.?W. L. S.]
COPEPODS GATHERED BY ALBATROSS?WILSON 3673694. Lat. 12?43' N., long. 179?50' E.; Tonga to Ellice Islands; December 21, 1899;surface; 2 speciesEuchaeta spinosa Labidocera acutifrons2695. Off Honshu Island, Japan; May 5, 1900; surface; 2 speciesCalanus finmarchicus Centropages typicus3705. Off Honshu Island, Japan; May 7, 1900; surface; 3 speciesFarranula rostrata Paracalanus parvus Pseudocalanus minutus3712. Off Honshu Island, Japan; May 10, 1900; surface; 10 speciesEucalanus attenuatus Euchirella curticauda Pleuromamma xiphiasEuchaeta marina Heterorhabdus clausii Rhincalanus nasutusEuchaeta spinosa Oncaea minutaEuchirella bitumida Paracalanus parvus3716. Off Honshu Island, Japan; May 11, 1900; surface; 2 speciesPareuchaeta norvegica Rhincalanus nasutus3765. Off Honshu Island, Japan; May 22, 1900; surface; 15 speciesAcrocalanus monachus Euchaeta marina Oithona similisCandacia simplex Euchaeta spinosa Oncaea minutaEucalanus attenuatus Farranula rostrata Paracalanus parvusEucalanus monachus Nannocalanus minor Pleuromamma gracilisEuchaeta hebes Oithona robusta Rhincalanus cornutus3781. Northern Pacific, off Kamchatka; June 23, 1900; surface; 1 speciesSapphirina opalina3782. Northern Pacific, off Kamchatka; June 23, 1900; surface; 8 speciesAcartia longiremis Corycaeus lautus Sapphirina metallinaCalocalanus pavo Corycaeus speciosus Undinula darwiniiCorycaeus clausi Oncaea conifera3789. Lat. 48?21'45" N, long. 124?52'30" W.; off Washington; April 30, 1901;surface; 12 speciesAcrocalanus gibber Corycaeus ovalis Farranula rostrataCalocalanus pavo Corycaeus speciosus Nannocalanus minorCanthocalanus pauper Euchaeta marina Pseudocalanus minutusCentropages calaninus Farranula gracilis Sapphirina scarlata3791. Lat. 33?08'45" N., long. 130?41' W.; off California; March 14, 1902; surface;2 speciesEuchaeta marina Labidocera acutifrons3797. Lat. 31?55' N? long. 136?00' W.; off Hawaiian Islands; March 17, 1902;surface; 2 speciesFarranula carinata Farranula rostrata
368 BULLETIN 100, UNITED STATES NATIONAL MUSEUM3799. Lat. 29?22' N., long. 139?31' W.; Hawaiian Islands; March 18, 1902; 100-0fathoms; 100 speciesAcartia danaeAcartia longireniisAcrocalanus gibberAcrocalanus gracilisAcrocalanus longicornisAegisthus niucronatusCalocalanus pavoCandacia aethiopicaCandacia bipinnataGandacia bispinosaCandacia longimanaCandacia norvegicaCandacia simplexCentropages calaninusCentropages furcatusChirundina streetsiClausocalanus arcuicornisClausocalanus furcatusClyteranestra scutellataCopilia quadrataCorycaeus agilisCorycaeus crassiusculusCorycaeus flaccusCorycaeus furciferCorycaeus lautusCorycaeus limbatusCorycaeus longistylisCorycaeus speciosusCorycaeus subtilisCorycaeus typicusEuaetidius giesbrechtiEucalanus attenuatusEuchaeta marinaEuchirella brevisEuchirella curticauda
Euchirella intermediaEuchirella messinensisFarranula gibbulaFarranula rostrataGaetanus armigerGaetanus kruppiiGaetanus latifronsGaidus tenuispinusHaloptilus longicornisHaloptilus ornatusHaloptilus oxycepbalusHaloptilus spinicepsHaloptilus tenuisHeteramalla dubiaHeterorbabdus papilligerLabidocera acutifronsLabidocera detruncataLucicutia clausiiLucicutia curtaLucicutia flavicornisLucicutia longicornisLucicutia tenuicaudaMacrosetella gracilisMecynocera clausiMegacalanus princepsMetridia longaMormonilla pbasmaNannocalanus minorNeocalanus gracilisNeocalanus robustiorNeocalanus tenuicornisOithona linearisOithona similisOithona spinirostrisOncaea conifera
Oncaea minutaPachyptilus abbreviatusParacalanus parvusPareuchaeta gracilisPhaenna spiniferaPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma pisekiPleuromamma robustaPleuromamma xiphiasPontellina plumataPseudocalanus minutusSappbirina angustaSapphirina auronitensSappbirina metallinaSapphirina nigromaculataSapphirina opalinaSapphirina salpaeSapphirina scarlataScaphocalanus echinatusScapliocalanus subbrevi-cornisScolecithricella auropec-tenScolecithricella bradyiScolecithricella dentataScottocalanus thomasiSpinocalanus abyssalisTemora styliferaUndeuchaeta majorUndeuchaeta plumosaUndinula vulgaris
3800. Lat. 28?23' N., long. 141?41'05" W.; Hawaiian Islands; March 19, 1902; 100-0fathoms; 23 speciesCandacia bipinnataCandacia simplexCentropages furcatusCorycaeus longistylisCorycaeus speciosusEucalanus attenuatusEuchaeta spinosaEucbirella curticauda
Euchirella messinensisFarranula rostrataGaetanus pileatusLucicutia tenuicaudaMacrosetella gracilisMecynocera clausiNeocalanus gracilisNeocalanus robustior
Neocalanus tenuicornisOncaea minutaPhaenna spiniferaPleuromamma gracilisPleuromamma xipbiasPseudocalanus minutusUndeuchaeta plumosa
COPEPODS GATHERED BY ALBATROSS?WILSON 3693803. Lat. 25?39'45" N, long. 147?41'45" W.; Hawaiian Islands; March 21, 1902;50-0 fathoms; 5 speciesHaloptilus splnicepsLucicutia tenuicauda Neocalanus robustiorParacalanus parvus Phaenna spinifera3807. Lat. 22?43'15" N, long. 154?17'30" W.; Hawaiian Islands; March 23, 1902;50-0 fathoms; 1 speciesPontella atlantica3822. South of Molokai Island, Hawaiian Islands; April 1, 1902; surface;7 speciesCorycaeus latusLabidocera acutifronsLabidocera detruncata Paracalanus parvusPontella atlanticaPontella tenuiremis Pontellopsis armata3829. South of Molokai Island, Hawaiian Islands; April 2, 1902; surface; 53speciesAcartia danaeAcartia longiremisAcartia negligensAcrocalanus gibberAcrocalanus gracilisAcrocalanus monachusCalocalanus pavoCandacia aethiopicaCandacia armataCentropages gracilisCopilia mirabilisCopilia guadrataCorycaeus catusCorycaeus latusCorycaeus lautusCorycaeus linibatusCorycaeus longistylisCorycaeus pumilus
Corycaeus robustusCorycaeus speciosusCorycaeus subtilisDysgamus ariommusDysgamus pacificusEucalanus crassusEucalanus mucronatusEucbaeta marinaEuchirella curticaudaEucbirella intermediaFarranula carinataFarranula gibbulaFarranula rostrataLabidocera acutifronsNannocalanus minorNeocalanus gracilisNeocalanus robustiorOithona similis
Oncaea minutaOncaea ornataOncaea similisParacalanus parvusPareuchaeta incisaPhaenna spiniferaPontella securiferPontellina plumataPseudocalanus minutusSapphirina angustaSapphirina auronitensSapphirina ovato-lanceo-lataScolecithricella bradyiScolecithrix danaeUndinula caroliUndinula darwiniiUndinula vulgaris
3834. South of Molokai Island, Hawaiian Islands; April 2, 1902; surface; 18speciesAcartia longiremisCandacia bispinosaCandacia simplexEuchaeta marinaFarranula carinataHaloptilus acutifrons
Lubbockia aculeataLubbockia squillimanaLucicutia flavicornisLucicutia tenuicaudaNeocalanus gracilisOncaea minuta
Faracalanus parvusPseudocalanus minutusSapphirina auronitensScolecithricella bradyiUndinula caroliUndinula vulgaris
3839. South of Molokai Island, Hawaiian Islands; April 4, 1902; surface;1 speciesCandacia simplex3864. Pailolo Channel, Hawaiian Islands; April 10, 1902; surface; 1 speciesPontella atlantica
370 BULLETIN 100, UNITED STATES NATIONAL MUSEUM3S67. Off Mokuhooniki, Hawaiian Islands; April 10, 1992; surface; 23 speciesAc.irtia longiremisCandacia acthiopicaCandacia bispinosaEucalanus attenuatusEuchaeta marinaEuchaeta mediaEuchaeta puberaFarranula gibbulaFarranula rostrata
Labidocera acutifronsLabidocera detruncataNannocalauus minorNeocalanus gracilisOncaea minutaParacalanus parvusPleuromamma abdomi-nal isPleuromamma gracilis
Pseudocalanus minutusSapphirina opalinaScolecithricella bradyiScolecethrix danaeUndinula earoliUndinula vulgaris
3S78. South of Lanai Island, Hawaiian Islands; April 14, 1902; surface; 58 speciesAcartia danaeAcartia longiremisAcartia negligensAcrocalanus gracilisArietellus armatusCalocalanus pavoCandacia aethiopicaCandacia bispinosaCandacia longimanaCandacia norvegicaCandacia simplexCentropages calaninusCopilia mirabilisCorycaeus agilisCorycaeus crassiusculusCorycaeus flaccusCorycaeus latusCorycaeus longistylisCorycaeus robustusCorycaeus speciosusEucalanus elongatus
Euchaeta marinaEuchaeta spinosaEuchirella intermediaFarranula rostrataHeterorhabdus papilligerLabidocera acutaLabidocera acutifronsLabidocera albatrossiLabidocera detruncataLabidocera wollastoniMacrosetella gracilisNeocalanus gracilisNeocalanus robustiorNeocalanus tenuicornisOncaea minutaOncaea notopaParacalanus parvusPhaenna spiniferaPleuromamma abdomi-nalisPleuromamma gracilis
Pleuromamma piseklPleuromamma xiphiasPontella ferarontella tenuiremisPontellina plumataPontellopsis albatrossiPontellopsis armataPontellopsis regalisPseudocalanus minutusSapphirina gemmaSapphirina metallinaSapphirina ovato-lanceolataScolecithricella bradyiScolecithrix danaeUndinula earoliUndinula darwiniiUndinula vulgaris
3898. Pailolo Channel, Hawaiian Islands; April 29, 1902; surface; 1 speciesPontella tenuiremis3001. Off Mokuhooniki, Hawaiian Islands; April 29, 1902; surface; 51 speciesAcartia danaeAcrocalanus gracilisAcrocalanus longicornisAcrocalanus monachusCalocalanus pavoCandacia aethiopicaCandacia bipinnataCandacia bispinosaCandacia norvegicaCanthocalanus pauperCentropages furcatusCentropages violaceusClausocalanus arcuicornis
Copilia quadrataCorycaeus agilisCorycaeus limbatusCorycaeus longistylisCorycaeus pacificusCorycaeus pumilusCorycaeus robustusCorycaeus typicusEucalanus elongatusEucalanus mucronatusEuchaeta marinaFarranula carinataFarranula concinna
Farranula gibbulaLabidocera acutifronsLabidocera detruncataLabidocera euchaetaLucicutia flavicornisNannocalanus minorNeocalanus gracilisNeocalanus robustiorNeocalanus tenuicornisOncaea minutaParacalanus parvusPareuchaeta erebiPhaenna spinifera
COPEPODS GATHERED BY ALBATROSS?WILSON 3713901. Off Mokuhooniki, Hawaiian Islands; April 29, 1902; surface; 51 species-ContinuedPleuromanima abdomi- Sapphirina angusta Scolecithrix danaenalis Sapphirina auronitens Undinula caroliPleuromamma gracilis Sapphirina bicuspidata Undinula vulgarisPontellina plumata Sapphirina metallinaPseudocalanus minutus Sapphirina nigromaculata3908. Off Diamond Head, south coast of Oahu, Hawaiian Islands; May 5, 1902;surface; 1 speciesPontella atlantica3911. South of Oahu Island, Hawaiian Islands; May 5, 1902; surface; 1 speciesEuchaeta marina3912. South of Oahu Island, Hawaiian Islands; May 5, 1902; surface; 15 speciesAcrocalanus gracilis Nannocalanus minor Sapphirina auronitensAcrocalanus monachus Neocalanus gracilis Scolecithrix danaeCopilia quadrata Oncaea minuta Undinula caroliEuchaeta marina Paracalanus parvus Undinula da rwiniiFarranula rostrata Pontella danae Undinula vulgaris3921. South of Oahu Island, Hawaiian Islands; May 6, 1902; surface; 3 speciesEuchaeta marina Euchaeta pubera Labidocera acuta3927. Lat. 21?31' N, long. 161?55' W.; Hawaiian Islands; May 11, 1902; surface;6 speciesCandacia simplex Farranula rostrata Paracalanus parvusEuchaeta marina Labidocera acutifrons Pontella princeps3929. Lat. 23?19' N., long. 166?54' W.; Hawaiian Islands; May 13, 1902; surface;4 speciesCandacia simplex Undinula caroli Undinula vulgarisEuchaeta marina3930. Lat. 25? 07' N, long. 170? 50' W.; Hawaiian Islands; May 15, 1902; surface;8 speciesEuchaeta acuta Phaenna spinifera Undinula caroliEuchaeta marina Pontella securifer Undinula vulgarisOncaea minuta Scolecithrix danae3932. Lat. 25?45' N, long. 171?32' W.; Hawaiian Islands; May 16, 1902; surface;23 speciesAcartia negligens Farranula carinata Pontellopsis villosaAcrocalanus gracilis Labidocera acutifrons Sapphirina auronitensCandacia aethiopica Lucicutia flavicornis Sapphirina metallinaClytemnestra scutellata Neocalanus gracilis Sapphirina stellataCorycaeus crassiusculus Neocalanus tenuicornis Scolecithricella bradyiCorycaeus speciosus Oncaea venusta Scolecithrix danaeEuchaeta marina Phaenna spinifera Undinula vulgarisEuchaeta spinosa Pontella securifer843804?50?16
372 BULLETIN 100, UNITED STATES NATIONAL MUSEUM3952. North of Laysan Island, Hawaiian Islands; May 21, 1902; surface; 1 speciesAcrocalanus gracilis3980. Lat. 21?23' N., long. 158?19' W.; Hawaiian Islands; June 9, 1902; surface;22 speciesAcrocalanus gracilisCandacia aethiopicaCorycaeus lirnbatusEuchaeta acutaEucliaeta marinaLabidocera acutifronsLabidocera detruncataMacrosetella gracilis
Oithona similisOncaea minutaOncaea venustaPhaenna spiniferaPontella securiferPontellina plumataPontellopsis brevisPontellopsis digitata
Pontellopsis strenuaScolecithricella bradyiScolecithrix danaeUndinula caroliUndinula darwiniiUndinula vulgaris
3981. Off Kauai Island, Hawaiian Islands; June 10, 1902; surfce; 6 speciesCorycaeus pacificusFarranula rostrata Labidocera acutifronsParacalauus parvus Pontella atlanticaPontella securifer3982. Off Kauai Island, Hawaiian Islands; June 10, 1902; surface; 1 speciesGaetanus minor4009. Lat. 21?50'30" N, long. 159?15' W.; Hawaiian Islands; June 17, 1902; surface;45 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisCalanopia minorCalocalanus pavoCandacia aetbiopicaCandacia simplexCopilia mirabilisCopilia quadrataCorycaeus agilisCorycaeus crassiusculusCorycaeus flaccusCorycaeus latusCorycaeus lirnbatusCorycaeus longistylis
Corycaeus lubbockiiCorycaeus speciosusCorycaeus vitreusEucalanus attenuatusEuchaeta marinaEuchaeta spinosaFarranula carinataFarranula concinnaFarranula gibbulaFarranula rostrataLabidocera acutifronsLabidocera detruncataNeocalanus gracilisNeocalanus robustiorOncaea minuta
Oncaea venustaPareuchaeta incisaPhaenna spiniferaPontella securiferPontellina plumataPontellopsis albatrossiPontellopsis armataPontellopsis regalisSapphirina metallinaSapphirina nigromaculataScolecithricella bradyiScolecithrix danaeUndeuchaeta plumosaUndinula caroliUndinula vulgaris4010. Lat. 21?35' N? long. 158?50' W.; off Oalm Island, Hawaiian Islands; June17, 1902; surface; 43 speciesAcartia longiremisCalocalanus styliremisCandacia aethiopicaCandacia armataCandacia bipinnataCandacia norvegicaCandacia simplexCentropages furcatusCopilia quadrataCorycaeus agilisCorycaeus latus
Corycaeus longistylisCorycaeus speciosusDysgamus pacificusEucalanus attenuatusEucalanus elongatusEuchaeta marinaEuchaeta spinosaFarranula rostrataLabidocera acutaLabidocera acutifronsLabidocera detruncata
Labidocera wollastoniLucicutia tenuicaudaMecynocera clausiNannocalanus minorNeocalanus gracilisNeocalanus robustiorOithona similisOncaea minutaParacalanus parvusPhaenna spiniferaPontella atlantica
COPEPODS GATHERED BY ALBATROSS?WILSON 3734010. Lat. 21?35' N, long 158?50' W; off Oahu Island, Hawaiian Islands; June17, 1902; surface; 43 species?ContinuedPontella securiferPontella tenuiremisPontellina plumataPontellopsis armata Pseudocalanus rninutusSapphirina auronitensScolecithrix danaeUndeuchaeta plumosa Undinula caroliUndinula vulgaris4011. Lat. 21?20' N? long. 158?21' W.; off Oahu Island, Hawaiian Islands; June18, 1902, surface; 21 species Scolecithricella auropec-tenScolecithrix danaeUndinula caroliAcartia danaeAcrocalanus gracilisCandacia aethiopicaCandacia bipinnataCandacia norvegicaEucalanus attenuatusEuchaeta marinaFarranula rostrata
Labidocera acutifronsLabidocera detruncataLucicutia tenuicaudaOncaea rainutaParacalanus parvusPhaenna spiniferaPontella feraPontella tenuiremis4037. Off Hawaii Island, Hawaiian Islands; JulyAcartia danaeAcrocalanus gibberAcrocalanus gracilisCalanopia ellipticaCalanopia minorCandacia aethiopicaCandacia bispinosaCandacia simplexClytemnestra scutellataCorycaeus agilisCorycaeus dubiusCorycaeus flaccusCorycaeus latusCorycaeus limbatus
Corycaeus pumilusEuchaeta marinaFarranula carinataFarranula concinnaFarranula gibbulaFarranula rostrataLabidocera acutifronsLabidocera euchaetaLabidocera minutaMacrosetella gracilisMiracia efferataNeocalanus gracilisNeocalanus robustiorOithona similis
Undinula darwiniiUndinula vulgaris
10, 1902; surface; 42 speciesOncaea minutaOncaea venustaParacalanus parvusPhaenna spiniferaPontella securiferPontellina plumataPontellopsis strenuaPseudocalanus minutusSapphirina auronitensScolecithricella bradyiScolecithrix danaeUndinula caroliUndinula darwiniiUndinula vulgaris4038. West of Hawaii Island, Hawaiian Islands; July 10, 1902; surface; 1 speciesEuchaeta media4086. North of Maui Island, Hawaiian Islands ; July 21, 1902 ; surface ; 3 speciesEucalanus attenuatus Euchaeta marina Undinula vulgaris4190. Lat. 34?39'18" N?
Acartia longiremisCandacia aethiopicaCandacia norvegicaCandacia simplexCorycaeus speciosusEuchaeta marinaEuchaeta spinosaFarranula carinataFarranula rostrataLabidocera acuta
long. 132? 04' W.; Hawaiiansurface; 28 speciesLabidocera acutifronsLabidocera detruncataMecynocera clausiNannocalanus minorNeocalanus gracilisNeocalanus tenuicornisOncaea minutaParacalanus parvusPontella atlanticaPontella princeps
Islands; August 27, 1902;
Pontella securiferPoutellina plumataPontellopsis armataPseudocalanus minutusSapphirina auronitensSapphirina metallinaSapphirina nigromaculataSapphirina opalina
374 BULLETIN 100, UNITED STATES NATIONAL MUSEUM4427. Southeast of Santa Cruz Island, California; April 14, 1904; surface;5 speciesEuaugaptilus gibbus Euchaeta marina Undeuchaeta majorEucbaeta acuta Pareucbaeta ineisa
4533. Monterey Bay, California; May 28, 1904; [surface?]; 1 speciesRhincalanus nasutus
4538. Monterey Bay, California; May 31, 1904; [surface?]; 3 speciesPareucbaeta hansenii Rhincalanus nasutus Undinula vulgaris
4539. Monterey Bay, California; May 31, 1904; [surface?]; 1 speciesGaussia princeps
4540. Monterey Bay, California; June 1, 1904; [surface?]; 1 speciesCandacia eurta
4542. Monterey Bay, California; June 1, 1904; [surface?]; 1 speciesGaussia princeps
4561. Monterey Bay, California; June 11, 1904; [surface?]; 1 speciesEucalanus muticus
4571. Lat. 33?40' N., long. 119?35' W.; off California; October 7, 1904; 300-0fathoms; 3 speciesEucalanus muticus Pontellopsis regalis Undeucbaeta major
4574. Lat. 30?35' N., long. 117?23' W.; Baja California; October 8, 1904; 300-Ofathoms; 19 speciesAetideus armatus Gaidius pungens Pleuromamma gracilisCalanus helgolandicus Heterorhabdus robustus Pleuromamma robustaCbirundina streetsi Heterorhabdus spinifrons Pontella atlanticaClausocalanus arcuicornis Lophotbrix frontalis Rhincalanus nasutusClausocalanus furcatus Lucicutia atlantica Scolecithrix danaeEucalanus elongatus Pleuromamma abdominalis Undeucbaeta majorEucalanus muticus
4580. Lat. 24?55' N, long. 112?45' W.; Baja California; October 10, 1904; 300-0fathoms; 10 speciesEucalanus attenuatus Heterostylites longicornis Scolecithrix danaeEucalanus elongatus Labidocera acutifronsEucalanus muticus Pleuromamma abdomi-Eucbaeta acuta nalisEuchaeta marina Rhincalanus nasutus
COPEPODS GATHERED BY ALBATROSS?WILSON 3754583. Lat. 22?45' N., long. 110?05' W.; Baja California; October 11, 1904; 300-0fathoms; 11 speciesEucalanus attenuatus Euchaeta spinosa Metridia curticaudaEucalanus muticus Haloptilus longicornis Pareuchaeta grandiremisEuchaeta acuta Heterostylites longicornis Pleuromamma robustaEuchaeta marina Labidocera acuta4585. Lat. 21?C0' N., long. 107?37' W.; Baja California; October 12, 1904;2 fathoms; 8 speciesEucalanus attenuatus Labidocera acuta Pleuromamma robustaEucalanus muticus Metridia curticauda Rhincalanus nasutusEucbaeta acuta Pareucbaeta grandiremis4587. Lat. 20?00' N., long. 108?12' W.; west coast of Mexico; October 12, 1904;2 fathoms; 4 speciesEucbaeta acuta Haloptilus longicornis Pleuromamma robustaEucbirella venusta
*4588. Lat. 19?52' N., long. 106?02' W.; southwest coast of Mexico; October 12,1904; surface; 26 speciesAcrocalanus longicornis Farranula rostrata Pontella atlanticaCentropages kr^yeri Labidocera acuta Pontellina plumataCentropages violaceus Labidocera kr0yerl Pontellopsis regalisCopilia mirabilis Microsetella rosea Sappbirina nigromaculataCorycaeus clausi Nannocalanus minor Scolecitbrix danaeCorycaeus latus Neocalanus gracilis Temora styliferaEucalanus attenuatus Oncaea minuta Undinula darwiniiEuchaeta marina Paracalanus parvus Undinula vulgarisEucbaeta spinosa Pareuchaeta californica
*4589. Lat. 18?50' N., long. 104?50' W.; southwest coast of Mexico; October 13,1904; 300-0 fathoms; 1 speciesHaloptilus longicornis
"4590. Lat. 18?50' N., long. 104?50' W.; southwest coast of Mexico; October 13,1904; 2 fathoms; 6 speciesEucalanu3 attenuatus Labidocera acutifrons Scaphocalanus robustusEucalanus muticus Pleuromamma abdonii-Euchaeta marina nalis
*4592. Lat. 18?17'30" N, long. 103?35' W.; southwest coast of Mexico; October 13,1904; surface; 7 speciesEucalanus attenuatus Labidocera acuta Undinula vulgarisEucbaeta marina Pontella danaeEuchaeta wolfendeni Pontellopsis regalis
*4594. Lat. 17?17' N? long. 101?35' W.; southwest coast of Mexico; October 14,1904; 300-0 fathoms; 5 speciesEucalanus monachus Eucbaeta marina Pleuromamma robustaEucalanus muticus Euchirella venusta
376 BULLETIN 100, UNITED STATES NATIONAL MUSEUM4598. Lat. 15?58' N? long. 98?13' W.; southwest coast of Mexico; October 15,1904; 300-0 fathoms; 6 speciesCandacia pachydactyla Bucalanus muticus Pleuromamma robustaEucalanus mucronatus Euchirella venusta Undinula vulgaris
*4600. Lat. 15?36' N? long. 96?59' W.; Central America, west coast; October 15,1904; surface; 2 speciesLabidocera acuta Undinula vulgaris
?4605. Lat. 12?20' N, long. 92?13' W.; Central America, west coast; October 17,1904; 300-0 fathoms; 10 speciesArietellus giesbrechti Eucalanus muticus Labidocera acutaCandacia simplex Euchaeta marina Rhincalanus cornutusEucalanus attenuatus Euchirella venustaEucalanus mucronatus Haloptilus ornatus
*4607. Lat. 12?00' N., long. 91?30' W.; Central America, west coast; October 17,1904; surface; 7 speciesCandacia simplex Eucalanus muticus Pontella chierchiaeEuaugaptilus squamatus Euchaeta marina Undinula vulgarisEucalanus attenuatus
4609. Lat. 11?03' N., 89 6 35' W.; Central America, west coast; October 18, 1904;300-0 fathoms; 2 speciesPhyllopus bidentatus Sapphirina nigromaculata4611. Lat. 10?32' N., long. 88?25' W.; Central America, west coast; October 18,1904; surface, electric-light; 27 speciesCandacia aethiopica Eucalanus subtenuis Pontella atlanticaCandacia armata Euchaeta acuta Pontella danaeCandacia bispinosa Euchaeta marina Sapphirina nigromaculataCandacia longimana Euchirella galeata Sapphirina opalinaCandacia norvegica Labidocera detruncata Scolecithricella bradyiCandacia simplex Labidocera kr0yeri Scolecithrix danaeCopilia denticulata Nannocalanus minor Temora discaudataEucalanus attenuatus Oncaea venusta Temora styliferaEucalanus monachus Pleuromamma xiphias Undinula vulgaris
*4613. Lat. 9?43' N., long. 86? 15' W.; Central America, west coast; October 19,1904; 300-0 fathoms; 7 speciesEucalanus attenuatus Euchaeta marina Rhincalanus nasutusEucalanus elongatus Rhincalanus cornutus Undinula darwiniiEucalanus muticus4614. Lat. 9?06' N., long. 85?08' W.; Central America, west coast; October 19,1904; 2 fathoms; 1 speciesUndinula caroli
COPEPODS GATHERED BY ALBATROSS?WILSON 377
?4615. Lat. 9?06' N? long. 85?08' W.; Central America, west coast; October 19,1904; surface; 16 speciesAetideus armatusCandacia arinataCandacia bipinnataEucalanus attenuatusEucalanus monachusEucbaeta marina
Labidocera acutaLabidocera acutifronsLabidocera detruncataPachos punctatumPontella atlanticaPontella danae
Pontella lobiancoiPontellina plumataPontellopsis regalisUndinula vulgaris
?4617. Lat. 7?21' N, long. 82?21' W.; south coast of Panama; October 20, 1904;surface; 2 speciesLabidocera detruncata Pontella atlantica4618. Lat. 7?17' N., long. 82?11' W.; south coast of Panama; October 20, 1904;2 fathoms; 1 speciesPontellopsis regalis
*4619. Lat. 7?17' N., long. 82?11' W.; south coast of Panama; October 20, 1904;surface; 11 speciesEucbaeta marinaLabidocera acutaLabidocera acutifronsLabidocera detruncata
Pleuromamma abdomi-nalisPleuromamma xipbiasPontella danae
Pontellopsis regalisPontellopsis strenuaSappbirina irisUndinula vulgaris4627. Lat. 7 C21' N., long. 79?56' W.; south of Panama; November 2, 1904; surface;2 speciesPleuromamma robusta Undinula vulgaris4630. Lat. 6?55' N., long. 81?42'30" W.; Panama to Galapagos Islands; November3, 1904; bottom; 1 speciesRhincalanus cornutus4632. Lat. 5?48' N., long. 82? 16' W.; Panama to Galapagos Islands; November 3,1904; 2 fathoms; 1 speciesRhincalanus nasutus
*4634. Lat. 4?35'30" N., long. 83?32'30" W.; west of Colombia; November 4, 1904;300-0 fathoms; 14 speciesEucalanus attenuatus Haloptilus ornatus Pareuchaeta grandiremisEucalanus elongatus Heterorhabdus papilliger Pareucbaeta rasaEucalanus muticus Heterorhabdus robustus Phaenna spiniferaEuchaeta longicornis Lucicutia curta Scapbocalanus affinisHaloptilus acutifrons Lucicutia flavicornis4635. Lat. 3?52'30" N., long. 84?15' W.; west of Colombia; November 4, 1904;surface ; 16 speciesCandacia curtaCandacia simplesCantbocalanus pauperCentropages furcatusEucalanus attenuatusEucalanus elongatusEuchaeta longicornis
Euchaeta marinaLabidocera detruncataNannocalanus minorNeocalanus gracilisPleuromamma abdomi-nalis
Pontella danaeScolecithrix danaeUndinula darwiniiUndinula vulgaris
378 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
?4637. Lat. 1?31' N., long. 86?32' W.; off Galapagos Islands; November 5, 1904;300-0 fathoms; 11 speciesCorycaeus limbatusEuchirella galeataGaetanus kruppilHaloptilus ornatus
Lueicutia flavicornisMetridia princepsMetridia venustaPareuchaeta grandiremis
Pleuromamma xiphiasRhincalanus nasutusScolecitbricella vittata
*4638. Lat. 00?27' N., long. 87?13' W.; west of Ecuador; November 6, 1904; 300-0fathoms; 34 speciesArietellus setosusAugaptilus longicaudatusCandacia longimanaCandacia norvegicaEucalanus attenuatusEucalanus pileatusEucalanus subcrassusEuchaeta longicornisEuchaeta marinaEuchirella bellaEuchirella galeataEuchirella messinensis
Euchirella venustaGaetanus milesGaidius brevispinusHaloptilus longicornisHaloptilus ornatusHeterostylites longicornisLabidocera acutaLueicutia atlanticaLueicutia flavicornisMetridia princepsMetridia venustaPareuchaeta grandiremis
Phaenna spiniferaPleuromamma abdomi-nalisPontellina plumataRhincalanus cornutusRhincalanus nasutusScolecithrix danaeScottocalanus securifronsTemora discaudataUndinula darwiniiUndinula vulgaris
*46i0. Lat. 00? 40' S. long. 88? 11' W.; west of Ecuador; November 6, 1904; 2fathoms; 21 speciesCandacia armataCandacia pachydactylaCentropages furcatusEucalanus attenuatusEucalanus elongatusEucalanus subcrassusEucbaeta longicornisEuchaeta marina
Labidocera acutaLabidocera acutifronsNannocalanus minorPleuromamma abdomi-nalisPleuromamma gracilisPontella atlanticaPontella danae
Pontellopsis regalisPontellopsis strenuaScolecithrix danaeTemora discaudataTemora styliferaUndinula vulgaris
4642. Lat. 1?30'30" S.; long. 89?35' W.; Galapagos Islands; November 7, 1904;bottom; 2 speciesGaetanus kruppil Pontella tenuirernis
*4644. Lat. 2?13' S, long. 89?42' W.; off Galapagos Islands; November 7, 1904;surface; 33 speciesAerocalanus gibberCalocalanus pavoCandacia bispinosaCandacia simplexCentropages furcatusCentropages violaceusCorycaeus flaccusEucalanus attenuatusEucalanus elongatusEucalanus monachusEucalanus subcrassusEuchaeta acuta
Euchaeta longicornisEuchaeta marinaGaetanus armigerLabidocera acutaLabidocera acutifronsLabidocera detruncataLueicutia lucidaMicrosetella roseaNannocalanus minorNeocalanus gracilisOncaea venusta
Pleuromamma abdomi-nalisPleuromamma gracilisPleuromamma pisekiPontellina plumataSapphirina nigromaculataScolecithrix danaeTemora discaudataTemora styliferaUndinuh. darwiniiUndinula vulgaris
COPEPODS GATHERED BY ALBATROSS?WILSON 379
*4646. Lat. 4?02' S., long. 89?16' W.; south of Galapagos Islands; November 8,1904; 300-0 fathoms; 29 speciesCandacia bispinosaCandacia longimanaCandacia norvegicaChiridius armatusEuaugaptilus laticepsEuaugaptilus oblongusEucalanus attenuatusEuealanus muticusEucalanus subtenuisEucbaeta acuta
Euchaeta longicornisEuchaeta marinaEucbaeta spinosaGaetanus recticornisHeterorhabdus spinifronsHeterostylites longicornisMetridia curticaudaNannocalanus minorPareuchaeta barbataPareuchaeta grandiremis
Phae'nna spinifcraPleuromamma gracilisPontellina plumataRhincalanus cornutusRhincalanus nasutusScapbocalanus magnusScolecithrix danaeTemora discaudataUndinula vulgaris
*4648. Lat. 4?43' S., long. 87?07'30" Yf.; south of Galapagos Islands; November 9,1904; 300-0 fathoms; 13 speciesCopilia quadrataEucalanus attenuatusEucalanus elongatusGaetanus milesHaloptilus longicornis
Lucicutia grandisMetridia curticaudaPareuchaeta barbataPareuchaeta grandiremisPontellina plumata
Pontellopsis regalisScolecithrix danaeUndinula darwinii
4649. Lat. 5?17' S., long. 85?20' W.; south of Galapagos Islands; November 10,1904; surface; 1 speciesPontellopsis regalis
*4G50. Lat. 5?21' S., long. 84?39' W.; off Peru; November 10, 1904; 300-0 fathoms;10 speciesEucalanus attenuatusEucalanus muticusEucalanus subtenuisEucbirella galeata
*4652. Lat. 5?45' S., long.
Aetideus armatusCalanus helgolandicusCentropages furcatusDisseta palumboiEuaugaptilus laticepsEuaugaptilus palumboiEuaugaptilus squamatusEucalanus muticusEucalanus subcrassusEucalanus subtenuisEuchaeta acuta
Gaetanus kruppiiLucicutia grandisPareuchaeta barbataPontella danae
Rhincalanus cornutusRhincalanus nasutus
!?40' W.; off Peru; November 11, 1904; 400-0 fathoms;30 speciesEuchaeta longicornis Phaenna spiniferaEuchirella galeata Pleuromamma abdomi-Euchirella messinensis nalisHeterorhabdus papilliger Pleuromamma gracilisHeterostylites longicornis Pleuromamma robustaPontellopsis regalisRhincalanus nasutusScolecithricella abyssalisScolecithricella auropec-ten
Labidocera acutii'ronsLucicutia grandisMegacalanus longicornisMetridia curticaudaPareuchaeta grandiremisPareuchaeta rasa
4653. Lat. 5?47' S, long. 81?24' W.; off Peru; November 12, 1904; 3 speciesNeocalanus gracilis Sapphirina sali Undinula vulgaris
380 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
*4655. Lat. 5?57'30" S., long. 81?50' W.; off Peru; November 12, 1904; 400-0fathoms; 20 speciesArietellus simplexCalanus flnmarchicusCalanus helgolandicusCandacia pachydactylaEuaugaptilus nodifronsEuaugaptilus oblongusEucalanus muticus4657. Lat. 7?12'30" S.
Euchirella venustaGaetanus reeticornisHaloptilus ornatusHeterorhabdus spinifronsLucicutia grandisMegacalanus loDgicornisNannocalanus minor
Pareucbaeta scottiPleuromamma abdomi-nalisEhincalanus nasutusSappbirina metallinaSapphirina opalinaScaphocalanus magnuslong. 84? 09' W.; off Peru; November 13, 1904; 300-0fathoms; 8 speciesCalanus helgolandicusEuaugaptilus laticepsEucalanus muticus Eucalanus subtenuisEuchaeta marinaEucliirella venusta Lucicutia flavicornisPleuromamma abdomi-nalis4658. Lat. 8"30' S., long. 85?36' W.; off Peru; November 14, 1904; 300-0 fathoms;1 speciesEucbirella venusta
*4659. Lat. 8?55' S., long. 86?05' W.; off Peru; November 14, 1904; 300-0 fathoms;18 speciesCandacia simplexCentropages violaceusCopilia quadrataEuaugaptilus squamatusEucalanus monachusEucalanus muticus
Eucalanus subtenuisEuchaeta acutaEucbaeta marinaEuchirella venustaHaloptilus ornatus
Labidocera acutifronsNannocalanus minorPareuchaeta grandiremisPontella danaeScolecithricella bradyiHeterostylites longicornis Scolecithrix danae4660. Lat. 9?55' S., long. 87?30' W; off Peru; November 15, 1904; caught in opennet hauled up from bottom; 1 speciesPareuchaeta barbata
*4661. Lat. 10? 17' S., long. 88?02' W.; off Peru; November 15, 1904; surface;electric light; 14 speciesCentraugaptilus cuculla-tusCentraugaptilus horridusCentraugaptilus rattrayiDisseta palumboi4663. Lat. 11?20'S., long.
Copilia quadrataDisseta palumboiEctinosoma curticornisEuaugaptilus laticepsEuaugaptilus oblongusEucalanus attenuatusEucalanus elongatusEucalanus muticus
Euaugaptilus nodifronsEucalanus monachusEuchaeta marinaEuchirella galeataEuchirella venusta
Labidocera acutifronsLucicutia grandisMegacalanus longicornisPareuchaeta barbataScapbocalanus affinis5?55' W.; off Peru; November 18, 1904; 300-0 fathoms;37 speciesEucalanus subtenuisEuchaeta longicornisEucbirella galeataEucbirella venustaGaetanus armigerGaetanus kruppiiGaetanus latifronsHaloptilus longicornis
Haloptilus ornatusHemirhabdus grimaldiiHeterostylites longicornisLabidocera acutifronsLucicutia grandisMegacalanus longicornisMetridia princepsMicrosetella rosea
COFEPODS GATHERED BY ALBATROSS?WILSON 381
*4663. Lat. 11?20' S.,long. 88?55' W.; off Peru; November 16, 1904; 300-0 fathoms;37 species?ContinuedNannocalanus minorOncaea minutaPareuchaeta barbataPareuchaeta grandiremisPhyllopus bidentatus
Sapphirina nigromaculata Spinocalanus abyssalisSapphirina opalina Temora discaudataSapphirina scarlata Vettoria granulosaScaphocalanus magnusScolecithrix danae
"4664. Lat. 11?30' S., long. 87?19' W.; off Peru; November 17, 1904; 300-0 fathoms;34 speciesAcartia negligensAmallothrix obtusifronsCandacia pachydactylaCentraugaptilus rattrayiClausocalanus arcuicornisEuaugaptilus laticepsEuaugaptilus nodifronsEucalanus muticusEucalanus subtenuisEuchaeta longicornisEuchirella galeataEuchirella pulchra
Gaetanus inermisGaetanus kruppiiGaetanus inicrocanthusGaetanus recticornisHaloptilus longicornisHaloptilus ornatusLa'oidocera acutifronsLopbothrix frontalisLucicutia flavicornisLucicutia grandisMegacalanus longicornisMetridia brevicauda
Metridia curticaudaNannocalanus minorPachyptilus abbreviatusParacalanus parvusPareuchaeta barbataPareuchaeta grandiremisPhyllopus bidentatusPhyllopus lmparRhincalanus cornutusTemora discaudata
*4665. Lat. 11?45' S., long. 86?05' W.; off Peru; November 17, 1904; surface,electric light ; 30 speciesAetideus armatusAmallothrix arcuataAmallothrix gracilisAmallothrix obtusifronsCentraugaptilus rattrayiCentropages calaninusDisseta palumboiEuaugaptilus nodifronsEucalanus attenuatusEucalanus subtenuis
Euchirella bellaEuchirella galeataEuchirella venustaGaetanus kruppiiGaetanus pileatusGaetanus recticornisHaloptilus ornatusLophothrix frontalisLucicutia grandisMegacalanus longicornis
Metridia princepsOnchocalanus trigonicepsPachyptilus abbreviatusPareuchaeta barbataPareuchaeta grandiremisPhaenna spiniferaPhyllopus bidentatusScaphocalanus affinisScaphocalanus magnusXanthocalanus greeni
*4667. Lat. 12?00' S., long. 83?40' W.; off Peru; November 18, 1904; surface,electric light ; 38 speciesAmallothrix arcuataCandacia simplexCentraugaptilus horridusCentraugaptilus rattrayiDisseta palumboiEuaugaptilus nodifronsEuaugaptilus squamatusEucalanus attenuatusEucalanus elongatusEucalanus mucronatusEucalanus muticusEucalanus subtenuisEuchaeta marina
Euchirella bellaEuchirella galeataGaetanus kruppiiGaetanus microcanthusGaidius affinisHaloptilus longicornisHaloptilus ornatusHeterostylites longicornisLabidocera acutifronsLabidocera lubbockiiLophothrix frontalisLucicutia grandisMegacalanus longicornis
Metridia curticaudaMetridia princepsOnchocalanus hirtipesPachyptilus abbreviatusPareuchaeta barbataPareuchaeta grandiremisPareuchaeta tumidulaPontella atlanticaPontellopsis regaliaPseudocalanus minutusScaphocalanus affinisScottocalanus persecans
382 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM
*466S. Lat. 12?09' S? long. 81?45' W.; off Peru; November 19, 1904; 300-0 fathoms;8 speciesAniallothrix obtusifrons Euaugaptilus nodifrons Euchirella galeataCentraugaptilus cuculla- Euaugaptilus oblongus Gaidius affinistus Eucalanus muticus Metridia princeps
*4659. Lat. 12? 13' S., long. 80?25' W.; off Peru; November 19, 1904; surface; 11speciesAugaptilus longicaudatus Euaugaptilus nodifrons Labidocera acutifronsCentraugaptilus cucul- Gaetanus kruppii Megacalanus longicornislatus Gaetanus nricrocanthus Pareuchaeta barbataDisseta palumboi Gaidius affinis Pontella tenuiremis4671. Lat. 12?07' S, long. 78?28' W.; off Peru; November 20, 1904; surface;31 speciesAugaptilus longicaudatusCandacia curtaCandacia pachydactylaChirundina streets!Euaugaptilus angustusEuaugaptilus laticepsEuaugaptilus magnusEuaugaptilus oblongusEuaugaptilus squamatusEucalanus attenuatesEucalanus elongatus
Eucalanus muticusEucalanus subtenuisEucbaeta longicornisEucbaeta marinaEuchirella galeataEuchirella venustaHaloptilus ornatusHeteroptilus acutilobusHeterorhabdus spinifronsLabidocera acutifronsMegacalanus longicornis
Metridia curticaudaOncaea venustaPachyptilus abbreviatesPachyptilus eurygnathusPareuchaeta barbataPareuchaeta sarsiSapphirina opalinaScaphocalanus affinisUndinula darwinii
4672. Lat. 13?11'30" S, long. 78?18' W.; off Peru; November 21, 1904; 300-0fathoms; 1 speciesMegacalanus longicornis
*4673. Lat. 12?30'30" S., long. 77?49'30" W.; off Peru; November 21, 1904;surface, electric light; 31 speciesAcartia danaeAetideus annatesAmallophora typicaArietellus plumiferArietellus simplexCalanus finmarchicusCalanus helgolandicusCandacia curtaCentropages brachiatusCentropages typicusClausocalanus arcuicornis
Disseta palumboiEuaugaptilus oblongusEuaugaptilus palumboiEucalanus attenuatesEucalanus crassusEucalanus nxmachusEucalanus muticusEucalanus subcrassusEucalanus subtenuisEucbaeta marinaEuchirella pulchra
Heterostylites longicornisLabidocera acutifronsMegacalanus longicornisMetridia boeckiiMetridia curticaudaNannocalanus minorParacalanus parvusPareuchaeta grandiremisScolecithricella bradyi
4674. Lat. 12?14'30" S? long. 78?43'30" W.; off Peru; November 22, 1904; depthnot given; 2 speciesNeocalanus robustior Scolecitbrix danae4675. Lat. 12?54' S? long. 78?33' W.; off Peru; November 22, 1904; surface;1 speciesMegacalanus longicornis
COPEPODS GATHERED BY ALBATROSS?WILSON 383
?4678. Lat. 14?29' S. long. 80?24' W.; off Peru; December 5, 1904; surface;19 speciesDisseta palumbolEuaugaptilus laticepsEuaugaptilus ruagnusEuaugaptilus nodifronsEucalanus attenuatusEucalanus elongatusEucalanus muticus
Euchirella galeataEuchirella venustaGaetanus recticornisLuclcutia grandisMegacalanus longicornisMormonilla phasmaOithona robusta
Onchocalanus trigonicepsPachyptilus abbreviatusPareuchaeta barbataPareuchaeta grandiremisPbyllopus bidentatus
4678. Lat. 1G?31' S., long. 85?04' W.; off Peru; December 6, 1904; surface; 3 speciesGaetanus minor Haloptilus longicornis Neocalanus robustior
?4679. Lat. 17?26' S., long. 86?46' W.; Peru to Easter Island; December 7, 1904;300-0 fathoms; 48 speciesAmallothrix arcuataAmallotbrix curticaudaAmallothrix invenustaAmallotbrix obtusifronsArietellus simplexBatbypontia elongataCaligus coryphaenaeCandacia pachydactylaCandacia simplexDisseta palumboiEuaugaptilus laticepsEuaugaptilus magnusEuaugaptilus nodifronsEuaugaptilus oblongusEuaugaptilus squamatusEucalanus elongatus
Eucbirella galeataEuchirella messinensisEucbirella venustaGaetanus kruppiiGaetanus microcantbusGaetanus milesGaetanus pileatusGaetanus recticornisGaussia princepsHaloptilus cbierchiaeHaloptilus fonsHaloptilus ornatusLucicutia flavicornisLucicutia grandisMegacalanus longicornisMetridia princeps
Mormonilla phasmaNeocalanus robustiorOnchocalanus affinisOnchocalanus trigonicepsPachyptilus abbreviatusPachyptilus eurygnathusPareuchaeta barbataPareuchaeta grandiremisPareuchaeta sarsiPareuchaeta tumidulaPhyllopus bidentatusPseudeuchaeta brevicaudaPseudochirella obtusaScaphocalanus afflnisScaphocalanus mediusUndeuchaeta major4680. Lat. 17?55' S- long. 87? 42' W.; Peru to Easter Island; December 7, 1904;surface; 2 speciesPontella atlanticaEucbirella bitumida
*4681. Lat. 18?47' S? long. 89?26' W.; Peru to Easter Island; December 8, 1904;300-0 fathoms; 37 speciesBatbypontia elongataCentraugaptilus rattrayiCephalophanes refulgensChirundina streetsiDisseta scopularisEuaugaptilus longimanusEuaugaptilus squamatusEucalanus elongatusEuchaeta marinaEucbirella grandicornisEuchirella pulchraGaetanus kruppiiGaetanus microcanthus
Gaetanus milesGaetanus recticornisHaloptilus longicornisHaloptilus ornatusLophotbrix frontalisLucicutia flavicornisMecynocera clausiMegacalanus longicornisMetridia princepsNeocalanus robustiorPachos punctatumPachyptilus abbreviatusPareuchaeta barbata
Pareuchaeta grandiremisPareuchaeta incisaPleuromamma abdomi-nalisPleuromamma robustaPleuromamma xiphiasRhincalanus cornutusScaphocalanus magnusScottocalanus securifronsUndeuchaeta majorUndeuchaeta plumosaUndinula darwinii
384 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
'4683. Lat. 20?02'30" S., long. 91?52'30" W.; Peru to Easter Island; December 9,1904; 300-0 fathoms; 17 speciesCentropages violaceusCephalophanes refulgensCorycaeus longistylisEuaugaptilus oblongusEucalanus elongatusEuchaeta pubera
Eucbirella curticaudaGaetanus latifronsGaetanus pileatusMegacalanus longieornisMetridia princepsNeocalanus robustior
Pareuchaeta tonsaPhyllopus bidentatusPontella tenuiremisPontellopsis muticusUndeuchaeta plumosa
*4684. Lat. 20?40' S., long. 93?19' W.; Peru to Easter Island; December 9, 1904;surface; 9 speciesCandacia aetbiopicaCentropages violaceusEucbaeta concinna Euchaeta marinaMegacalanus princepsNannocalanus minor Neocalanus gracilisPontellopsis strenuaScolecitbrix danae
>46S5. Lat. 21? 36' 8., long. 94? 56' W.; Peru to Easter Island; December 10, 1904;300-0 fathoms; 27 speciesAngaptilus ancepsCandacia longimanaCentropages violaceusChirundina streets!Clyteninestra scutellataEuaugaptilus oblongusEucalanus elongatusEuchaeta acutaEucbaeta pubera
Euchirella brevisEucbirella curticaudaGaetanus latifronsGaetanus pileatusHaloptilus longieornisHeterorbabdus spinifronsMetridia longaMetridia princepsNeocalanus robustior
Pachyptilus abbreviatusPareuchaeta tonsaPbyllopus bidentatusPleuromamma gracilisPleuromamma xiphiasPontella danaePontella tenuiremisScottocalanus securifronsUndeucbaeta plumosa
*46S7. Lat. 22?50' Sv long. 97?30' W.; Peru to Easter Island; December 11, 1904;2,000-0 fathoms; 42 speciesAmallothrix curticaudaAugaptilus longicaudatusBatbypontia elongataCentraugaptilus rattrayiCbirundina streetsiDisseta palumboiEuaetideus giesbrecbtiEuaugaptilus bulliferEuaugaptilus laticepsEuaugaptilus longimanusEuaugaptilus palumboiEugaugaptilus rigidusEuaugaptilus squamatusEucalanus elongatus
Eucbaeta marinaEuchirella curticaudaGaetanus kruppiiGaetanus milesGaetanus minorGaetanus pileatusGaussia princepsHaloptilus longieornisHeteroptilus attenuatusHeterorbabdus norvegicusLoptbothrix frontalisLopbothrix sarsiLucicutia atlanticaLucicutia grandis
Megacalanus princepsMetridia princepsNeocalanus robustiorPareuchaeta grandiremisPareuchaeta tonsaPhyllopus bidentatusPhyllopus muticusPleuromamma xiphiasPseudeuchaeta brevicaudaPseudochirella obtusaPseudochirella scopularisScolecitbrix danaeUndeuchaeta majorUndeuchaeta plumosa4688. Lat. 23?17' 3., long. 98?37'30" W.; Peru to Easter Island; December 11, 1904;surface; 4 speciesCandacia aethiopica Neocalanus gracilisCentropages violaceus Pachyptilus abbreviatus
COPEPOBS GATHERED BY ALBATROSS?WILSON 385
?4689. Lat. 24?05' S., long. 100?20' W.; Peru to Easter Island; December 12, 1904;300-0 fathoms; 9 speciesArietellus armatus Neocalanus gracilis Pleuroniamma xiphiasEuchirella venusta Neocalanus robustior Pontellopsis strenuaGaetanus miles Pleuromamma abdomi-Haloptilus longicornis nalis
*4691. Lat. 25?27' S., long. 103?29' W.; Peru to Easter Island; December 13, 1904;300-0 fathoms; 11 speciesCandacia curta Eucalanus elongatus Pleuromamma xiphiasCandacia longimana Eucbaeta acuta Undeuchaeta majorCandacia simplex Gaidius pungens Undeuchaeta plumosaEuaugaptilus angustus Haloptilus longicornis4692. Lat. 25?40'30" S., long. 104?01' W.; Peru to Easter Island; December 13,1904; surface; 4 speciesCandacia aethiopica Pontella atlantica Pontella lobiancolNeocalanus robustior4693. Lat. 26?30' S., long. 105?45' W.; Peru to Easter Island; December 14, 1904;surface; 2 speciesEuchirella curticauda Euchirella venusta4694. Lat. 26?34' S., long. 108?57'30" W.; north of Easter Island; December 22,1904; surface; 2 speciesEuchaeta spinosa Neocalanus gracilis
*4695. Lat. 25?22'30" S, long. 107 ?45' W.; north of Easter Island; December 23,1904; 300-0 fathoms; 9 speciesAugaptilus longicaudatus Euaugaptilus laticeps Phyllopus bidentatusEuaugaptilus angustus Euchirella messinensis Pleuromamma xipbiasEuaugaptilus hecticus Gaetanus miles Pontellopsis strenua
*4696. Lat. 24?40' S., long. 107?05' W., between Easter Island and the Galapagos;December 23, 1904; surface; 1 speciesPontella tenuiremis
*4699. Lat. 21?40' S, long. 104?30' W.; Easter to Galapagos Islands; December25, 1904; 300-0 fathoms; 6 speciesCandacia curta Euchirella brevis Gaetanus milesCandacia simplex Euchirella pulchra Sapphirina metallina
*4700. Lat. 20?29' S., long. 103?26' W.; Easter to Galapagos Islands; December 25,1904; 300-0 fathoms; 70 species
? Acartia longiremis Arietellus simplex Candacia longimanaAegisthus mucronatus Augaptilus longicaudatus Candacia simplexAetideus armatus Augaptilus megalurus Centraugaptilus rattraylAmallophora typica Candacia bipinnata Centropages violaeeusArietellus plumifer Candacia bispinosa Copilia mirabilis
386 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
*4700. Lat. 20?29' S., long. 103?26' W.; Easter to Galapagos Islands; December 25,1904; 300-0 fathoms; 70 species?ContinuedBuaugaptilus oblongusEuaugaptilus squamatusEucalanus elongatusEucalanus muticusEuchaeta concinnaEuchaeta marinaEuchaeta spinosaEuchirella bellaEuchirella brevisEuchirella galeataEuchirelia messinensisEuchirella pulchraGaetanus curvispinusGaetanus milesGaetanus pileatusGaidius brevicaudatusHaloptilus longicornisHaloptilus ornatusHaloptilus validus
Heteroptilus attenuatusHeterorhabdus papilligerHeterostylites longicornisLabidocera detruncataLabidocera wollastoniLophothrix frontalisLucicutia flavicoruisMecynocera clausiMegacalanus longicornisMetridia curticaudaMetridia princepsMormonilla minorNannocalanus minorNeocalanus gracilisOculosetella gracilisOithona plumiferaPachyptilus abbreviatusPareuchaeta barbataPareuchaeta californica
Pareuchaeta erebiPareuchaeta grandiremisPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma robustaPleuromamma xiphiasPontella tenuiremisRhincalanus cornutusRhincalanus nasutusSapphirina nigromaculataSapphirina stellataScolecithricella bradyiScolecithricella dentataScolecithricella vittataScolecithrix danaeUndinula darwiniiUndinula vulgaris
*4701. Lat. 19?11'30" S., long. 102?24' W.; Easter to Galapagos Islands; December26, 1904; 300-0 fathoms; 12 speciesGaetanus minor Lucicutia longicornisHaloptilus spiniceps Mecynocera clausiHeterorhabdus norvegicus Metridia princepsHeterorhabdus spinifrons Metridia venusta
Neocalanus robustiorPareuchaeta exiguaPareuchaeta grandiremisPareuchaeta sarsi
*4703. Lat. 17?19' S., long. 100?52'30" W.; Easter to Galapagos Islands; December27, 1904; 300-0 fathoms; 13 speciesAugaptilus longicaudatus Metridia princepsGaetanus curvispinus Nannocalanus minorHaloptilus ornatus Neocalanus robustiorLophothrix frontalis Pareuchaeta tonsaLucicutia flavicornis Phyllopus bidentatus
Pleuromamma xiphiasRhincalanus cornutusScottocalanus securifrons
"4705. Lat. 15? 05' S., long. 99? 19' W.; Easter to Galapagos Islands; December 28,300-0 fathoms; 34 speciesAetideus armatusArietellus armatusArietellus giesbrechtiArietellus plumiferAugaptilus longicaudatusCandacia aethiopicaCandacia simplexCentraugaptilus cucul-latusCentraugaptilus rattrayiDisseta palumboiDisseta scopularis
Euaugaptilus nodifronsEuaugaptilus palumboiEucalanus elongatusEuchaeta marinaEuchirella galeataEuchirella rostrataGaetanus pileatusHaloptilus longicornisHeterorhabdus norvegicusLophothrix frontalisLucicutia flavicornisMecynocera clausi
Metridia princepsNeocalanus robustiorPachyptilus eurygnathusPareuchaeta tonsaPhyllopus bidentatusPleuromamma robustaPleuromamma xiphiasRhincalanus cornutusScottocalanus securifronsUndeuchaeta plumosaUndinula darwinii
COPEPODS GATHERED BY ALBATROSS?WILSON 387
*4706. Lat. 14? 19' S., long. 98?46' W.j Easter to Galapagos Islands; December 28,1904; surface; 7 speciesEucalanus attenuatusEuchaeta marinaLucicutia flavicornis Neocalanus gracilisPontellopsis perspicaxRhincalanus cornutus Scolecithrix danae
*4707. Lat. 12?53' S., long. 97?42' W.; Easter to Galapagos Islands; December 29,1904; 300-0 fathoms; 57 speciesAmallophora typicaAinallothrix gracilisAinallothrix obtusifronsArietellus plumiferArietellus simplexAugaptilus longicaudatus
Euehirella galeataEuchirella pulchraGaetanus kruppiiGaetanus latifronsGaetanus milesGaetanus pileatusAugaptilus megalurusBathycalanus richardiCandacia pachydactylaCentraugaptilus rattrayiCentropages violaceusClausocalanus arcuicornisCorycaeus flaccusDisseta palumboiEuaugaptilus squamatusEucalanus attenuatusEucalanus elongatusEuchaeta marinaEuchaeta spinosaEuchirella brevis
Gaidius affinisGaidius brevicaudatusGaidius minutusGaussia princepsHaloptilus longicornisHaloptilus ornatusHeterorbabdus norvegicusHeterostylites longicornisLucicutia flavicornisLucicutia grandisMecynocera clausiMegacalanus longicornisMetridia curticaudaMetric! ia longa
Metridia princepsMormonilla phasmaNannocalanus minorNeocalanus robustiorOncaea venustaOnchocalanus cristatusPareuchaeta barbataPareuchaeta grandiremisPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma xiphiasRhincalanus cornutusSapphirina opalinaScolecithricella bradyiScolecithrix danaeUndinula darwiniiXanthocalanus pinguis
*4708. Lat. 11?40' S, long. 96?55' W.; Easter to Galapagos Islands; December 29,1904; surface; 7 speciesEuaugaptilus palumboi Gaetanus pileatus Undinula darwiniiEucalanus attenuatus Pleuromamma gracilisEuchaeta marina Scolecithrix danae
*4709. Lat. 10? 15' S. long. 95?41' W.; Easter to Galapagos Islands; December 30,1904; 300-0 fathoms; 7 speciesEucalanus elongatus Pareuchaeta gracilis Rhincalanus minutusEuchaeta marina Pleuromamma gracilisMetridia longa Pleuromamma xiphias
*4710. Lat. 9?30' S., long. 95?08' W.; Easter to Galapagos Islands; December 30,1904; surface; 6 speciesEuchirella bella Pleuromamma gracilis Rhincalanus cornutusNannocalanus minor Pontellopsis regalis Scolecithrix danae4711. Lat. 7?47'30" S., long. 94?05' W.; Easter to Galapagos Islands; December31, 1904; 300-0 fathoms; 14 speciesArietellus simplex Gaetanus kruppii Pachyptilus abbreviatusCentraugaptilus rattrayi Gaidius brevispinus Pareuchaeta barbataDisseta palumboi Haloptilus fons Pareuchaeta grandiremisEuaugaptilus squamatus Lucicutia flavicornis Scaphocalanus magnusEucalanus elongatus Megacalanus longicornis843804?50 17
388 BULLETIN 100, UNITED STATES NATIONAL MUSEUM4712. Lat. 7?05' S., long. 93?35' W.; Easter to Galapagos Islands; December 31,1904; surface; 2 speciesPontella securifer Rhincalanus cornutus
*4713. Lat. 5?35' S., long. 92?22' W.; Easter to Galapagos Islands; January 1,1905; 300-0 fathoms; 14 speciesCentraugaptilus rattrayi Eucalanus subtenuis Rhincalanus nasutusEucalanus attenuatus Euchaeta marina Sapphirina nigromaculataEucalanus elongatus Haloptilus longicornis Scolecitbrix danaeEucalanus mucronatus Pareuchaeta grandiremis Undinula darwiniiEucalanus muticus Rhincalanus cornutus
*4714. Lat. 4? 19' S., long 91?28' W.; south of Galapagos Islands; January 1, 1905;surface; 8 speciesCandacia tenuimanaCorycaeus longistylisEucalanus attenuatus Euchaeta marinaLabidocera acutifronsPontella danae Scolecitbrix danaeUndinula darwinii
*4715. Lat. 2?40'30" S., long. 90?19' W.; off Galapagos Islands; January 2, 1905;300-0 fathoms; 34 speciesAmallothrix obtusifronsArietellus simplexAugaptilus longicaudatusEuaugaptilus nodifronsEucalanus attenuatusEucalanus elongatusEucalanus subtenuisEuchaeta longicornisEuchaeta marinaEuchirella bellaEuchirella galeataGaetanus kruppii
Gaidius brevispinusHaloptilus longicornisHaloptilus spinicepsHemirhabdus grimaldiiHeterorhabdus papilligerHeterostylites longicornisLophothrix frontalisLucicutia grandisMecynocera clausiMegacalanus longicornisNannocalanus minorOnchocalanus hirtipes
Pareuchaeta barbataPareuchaeta grandiremisPleuromamma xiphiasPseudeuchaeta brevieaudaRhincalanus cornutusRhincalanus nasutusScaphocalanus magnusScottocalanus securifronsUndeuchaeta majorUndinula darwinii
*4716. Lat. 2?18'30" S., long. 90?02'30" W.; off Galapagos Islands; January 2, 1905;surface; 21 speciesAmallothrix arcuataAugaptilus longicaudatusCandacia elongataCopilia mirabilisCopilia quadrataEucalanus attenuatusEucalanus elongatus
Eucalanus monachusEucalanus subcrassusEuchaeta acutaEuchaeta marinaEuchirella bellaGaetanus kruppiiLophothrix frontalis
Pontella danaeRhincalanus cornutusRhincalanus nasutusScaphocalanus magnusScolecitbrix danaeUndeuchaeta majorUndinula darwinii
*4717. Lat. 5?11' S., long. 98?56' W.; off Galapagos Islands; January 13, 1905;300-0 fathoms ; 40 speciesAetideus armatusAmallothrix gracilisAmallothrix obtusifronsArietellus plumiferArietellus simplexBathypontia elongata
Centraugaptilus rattrayiDisseta palumboiEuaugaptilus angustusEuraugaptilus bulliferEuaugaptilus facilisEuaugaptilus laticeps
Euaugaptilus longimanusEuaugaptilus magnusEuaugaptilus nodifronsEuaugaptilus squamatusEucalanus elongatusEuchirella galeata
COPEPODS GATHERED BY ALBATROSS?WILSON 389
*4717. Lat. 5?11' S., long. 98?56' W.; off Galapagos Islands; January 13, 1905;300-0 fathoms; 40 species?ContinuedGaetanus kruppiiGaetanus milesGaetanus recticornisGaussia princepsHaloptilus longicornisLophothrix frontalisLucicutia flavicornisLucicutia grandis
Lucicutia longicornisMetridia princepsOnchocalanus trigonicepsPachyptilus eurygnathusPareuchaeta grandiremisPhyllopus bidentatusPleuromamma abdomi-nalis
Pleuromamma robustaI'leuromamma xiphiasRhincalanus cornutusSappbirina nigromaculataScapbocalanus magnusScaphocalanus mediusScottocalanus securifrons
*4718. Lat. 5?32'30" S., long. 99?32' W.; off Galapagos Islands; January 13, 1905;surface; 3 speciesEucalauus elongatus Pontellopsis regalis Rhincalanus cornutus
*4719. Lat. 6?30' S, long. 101?17' W.; Galapagos to Paumotu Islands; January 14,1905; 300-0 fathoms; 45 speciesAmallotbrix gracilisAmallotbrix obtusifronsArietellus plumiferArietellus simplexAugaptilus ancepsBatbypontia elongataCephalopbanes refulgensDisseta palumboiEuaugaptilus angustusEuaugaptilus squamatusEucalanus attenuatusEucalanus elongatusEucalanus muticusEuchaeta spinosaEuchirella galeataGaetanus armiger
Gaetanus curvispinusGaetanus kruppiiGaetanus microcanthusGaetanus milesGaetanus minorGaetanus pileatusGaetanus recticornisHaloptilus longicornisHemirhabdus latusHeterorhabdus papilligerHeterostylites longicornisLucicutia grandisMetridia princepsNannocalanus minorPachyptilus abbreviatesPareuchaeta barbata
Pareuchaeta grandiremisPhaenna spiniferaPhyllopus bidentatusPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma robustaPleuromamma xiphiasPontellopsis regalisRhincalanus cornutusScaphocalanus affinisScaphocalanus magnusScolecithrix danaeValdiviella insignis
4720. Lat. 7?13' S. long. 102?31'30" W.; Galapagos to Paumotu Islands; January14, 1905; surface; 2 speciesLabidocera detruncata Scottocalanus securifrons
*4721. Lat. 8?07'30" S., long. 104?10' W.; Galapagos to Paumotu Islands; January16, 1905; 300-0 fathoms; 45 speciesAmallothrix gracilisAmallotbrix obtusifronsArietellus setosusAugaptilus ancepsAugaptilus longicaudatusCandacia pachydactylaCandacia simplexCentropages violaceusEuaugaptilus nodifronsEuaugaptilus squamatusEucalanus elongatus
Eucalanus muticusEuchaeta acutaEuchaeta marinaEuchirella brevisEuchirella curticaudaEuchirella galeataEuchirella intermediaEuchirella pulchraEuchirella venustaGaetanus curvispinusGaetanus miles
Gaetanus pileatusGaidius brevispinusHaloptilus longicornisHaloptilus ornatusHemirhabdus grimaldiiHeterorhabdus papilligerHeterorhabdus spinifronsIsochaeta ovalisLabidocera detruncataLophothrix frontalisLucicutia grandis
390 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
*4721. Lat. 8?07'30" S., long. 104? 10' W.; Galapagos to Paumotu Islands; January16, 1905; 300-0 fathoms; 45 species?ContinuedMetridia curticaudaNannocalanus minorNeocalanus gracilisPaelios punctatumPareuchaeta barbata
Pareuchaeta grandiremis Sapphirina metallinaPleuromamma abdomi- Scolecithrix danaenalis Scottocalanus securifronsPleuromamma xiphiasRhincalanus cornutus
*4722. Lat. 9?31' S, long. 106?30' W.; Galapagos to Paumotu Islands; January 16,1905; 300-0 fathoms; 52 speciesAcrocalanus monacbusAmallothrix gracilisAmallothrix obtusifronsArietellus armatusArietellus pavoninusArietellus plumiferAugaptilus longicaudatusCandacia simplexCentraugaptilus cuculla-tusDisseta palumboiDisseta scopularisEuaugaptilus nodifronsEuaugaptilus palumboiEuaugaptilus squamatusEucalanus elongatusEucalanus muticusEucbaeta marina
Eucbaeta spiuosaEucbirella brevisEucbirella pulchraEucbirella venustaGaetanus armigerGaetanus curvispinusGaetanus kruppiiGaetanus microcanthusGaetanus milesGaetanus minorGaetanus pileatusGaetanus recticornisHemirhabdus latusHeterorhabdus papilligerHeterorbabdus spinifronsHeterostylites longicornisLabidocera detruncataLophotbrix frontalis
Lucicutia fiavicornisLucicutia grandisMetridia curticaudaMetridia princepsNeocalanus gracilisNeocalanus robustiorPareuchaeta barbataPareuchaeta grandiremisPhyllopus bidentatusPleuromamma gracilisPleuromamma xiphiasRhincalanus cornutusScaphocalanus affinisScolecithrix danaeScottocalanus securifronsUndeuchaeta majorUndinula darwinii
*4723. Lat. 10?14' S., long. 107?45' W.; Galapagos to Paumotu Islands; January16, 1905; surface; 5 speciesConaea gracilisEucalanus attenuatus Gaetanus milesLabidocera detruncata Nannocalanus minor
*4724. Lat. 11?13'30" S^long. 109?29' W.; Galapagos to Paumotu Islands; January17, 1905; 300-0 fathoms; 10 speciesCandacia aetbiopica Hemirhabdus grimaldii Pleuromamma xiphiasCandacia tenuimana Pachos punctatum Rhincalanus cornutusEucbaeta marina Pareuchaeta bradyi Scolecithrix danaeHaloptilus longicornis
*4725. Lat. 11?38' S., long. 110?05' W.; Galapagos to Paumotu Islands; January17, 1905; surface; 5 speciesCandacia aetbiopica Labidocera detruncata Scaphocalanus affinisHeterorhabdus papilliger Neocalanus gracilis
4727. Lat. 13?00' S., long. 112?45' W.; Galapagos to Paumotu Islands; January 18,1905; surface; 1 speciesAmallothrix obtusifrons
COPEPODS GATHERED BY ALBATROSS?WILSON 391
*4728. Lat. 13?47'30" S, long. 114?22' W.; Galapagos to Paumotu Islands; January19, 1905; 800-0 fathoms; 3 speciesLabidocera detruncata Pleuromamma gracilis Rhincalanus cornutus
*4730. Lat. 15?07' S., long. 117?01' W.; Galapagos to Paumotu Islands; January20, 1905; 300-0 fathoms; 35 speciesArnallothrix obtusifronsArietellus armatusArietellus plumiferArietellus setosusAugaptilus longicaudatusCandacia aethiopicaCandacia pacbydactylaCandacia simplexCentraugaptilus rattrayiCephalophanes refulgensDisseta palumboiDisseta scopularis
Euaugaptilus longimanusEuangaptilus palumboiEucalanus attenuatusEuchaeta marinaEuchirella curticaudaGaetanus milesGaetanus pileatusHaloptilus chiercbiaeHaloptilus longicornisHaloptilus spinicepsHeteroptilus attenuatusHeterorhabdus papilliger
Heterorhabdus spinifronsNeocalanus robu-Pareuchaeta tonsaPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma xiphiasRhincalanus cornutusScolecitbrix danaeScottocalanus securifronsUndeuchaeta plumosaUndinula darwinii
*4731. Lat. 15?47' S., long. 118?22'30" W.; Galapagos to Paumotu Islands; January20, 1905 ; surface ; 14 speciesCandacia aethiopicaCentropages violaceusCorycaeus longistylisCorycaeus speciosusEucalanus attenuatus
Euchaeta concinnaEuchaeta marinaLabidocera detruncataNeocalanus gracilisNeocalanus robustior
Oncaea venustaPontella atlanticaSappbirina opalinaSapphirina sali
*4732. Lat. 16?32'00" S., long. 119 6 59' W.; Galapagos to Paumotu Islands; January21, 1905; 300-0 fathoms; 11 speciesEuaugaptilus bulliferEuchirella brevisEuchirella messinensisEuchirella pulchra
Gaetanus pileatusMacandrewella chelipesPleuromamma xipbiasScolecithrix danae
Scottocalanus persecansScottocalanus securifronsUndeuchaeta major
4733. Lat. 16?57'30" S., long. 120?48' W.; Galapagos to Paumotu Islands; January21, 1905; surface; 1 speciesSapphirina nigromaculata
*4734. Lat. 17?26' S., long. 122?15' W.; Galapagos to Paumotu Islands; January22, 1905; 300-0 fathoms; 28 speciesAcrocalanus gracilisAegisthus mucronatusArietellus armatusArietellus setosusCentraugaptilus rattrayiConaea gracilisEuaugaptilus longimanusEuaugaptilus squamatusEucalanus attenuatusEuchaeta marina
Euchirella brevisEuchirella pulchraEuchirella venustaGaetanus milesGaetanus minorGaetanus pileatusHaloptilus longicornisMacandrewella sewelliNeocalanus robustiorPachos punctatum
Pleuromamma abdnmi-nalisPleuromamma xiphiasRhincalanus cornutusScolecithrix danaeScottocalanus persecansScottocalanus securifronsTemora discaudataUndinula darwinii
392 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
*4735. Lat. 18?16' S. long. 123?34' W.; Galapagos to Paumotu Islands; January22, 1905; surface; 3 speciesLabidocera detruncata Pontella tenuireniis Pontellina plumata
*4736. Lat. 19?00' S., long. 125?05' W.; Galapagos to Paumotu Islands; January23, 1905; 300-0 fathoms; 3 speciesCandacia longimana Euchirella venusta Scottocalanus securifrons4737. Lat. 19?57'30" S., long. 127?20' W.; Galapagos to Paumotu Islands; January24, 1905; 300-0 fathoms; 1 speciesCentraugaptilus rattrayi
*4738. Lat. 20?26'30" S., long. 128?30' W.; Galapagos to Paumotu Islands; January24, 1905; surface; 11 speciesCandacia aethiopica Euchaeta marina Pontella tenuiremisCandacia longimana Labidocera detruncata Ithincalanus cornutusCentropages violaceus Nannocalanus minor Undinula vulgarisCephalophanes refulgens Neocalanus gracilis
*4740. Lat. 9?02' S, long. 123?20' W.; off Paumotu Islands; February 11, 1905;300-0 fathoms; 29 speciesArietellus setosus Gaidius pungens Pleuromamma abdoini-Arietellus simplex Haloptilus longicornis nalisArietellus tripartitus Labidocera detruncata Pleuromamma xipbiasBathypontia elongata Lopbothrix frontalis Rhincalanus cornutusChirundina streetsi Lucicutia flavicornis Scaphoealanus affinisDisseta scopularis Metridia curticauda Scolecitbrix danaeEuaugaptilus bullifer Metridia princeps Scottocalanus securifronsEuchaeta acuta Neocalanus robustior Undeuchaeta majorEuchirella pulchra Onchocalanus trigoniceps Undeuchaeta plumosaGaetanus armiger Phyllopus bidentatusGaetanus miles
*4741. Lat. 8?29' S., long. 122?56' W.; Paumotu Islands to Mexico; February 11,1905; surface; 3 speciesCentropages violaceus Labidocera detruncata Pontella danae
*4742. Lat. 0Q?04' S., long. 117?07' W.; Paumotu Islands to Mexico; February 15,1905; 300-0 fathoms; 6 speciesArietellus plumifer Euchirella galeata Scottocalanus securifronsEuchirella curticauda Pleuromamma xiphias Undinula darwinii
*4743. Lat. 00?21' N., long. 117?02'30" W.; Paumotu Islands to Mexico; February15, 1905; surface; 11 speciesArietellus plumifer Labidocera detruncata Pontellina plumataCandacia pachydactyla Nannocalanus minor Pontellopsis regalisCandacia simplex Paracalanus aculeatus Uudinula caroliEucalanus monachus Pleuromamma xiphias4745. Lat. 53?59'45" N., long. 130?11'37" W.; Seattle to Yes Bay, Alaska; June 28,1905; 15-0 fathoms; 1 speciesEucalanus elongatus
COPEPODS GATHERED BY ALBATROSS?WILSON 3934746. Lat. 55?02'45" N? 131?06'39" W.; Seattle to Yes Bay, Alaska; June 28, 1905;120-0 fathoms; 1 speciesPleuromamma xiphias
*4747. Lat. 55?44'23" N., long. 131?45'13" W.; Yes Bay, Alaska; June 30, 1905;275-0 fathoms; 4 speciesCalanus cristatusCalanus hyperboreus Metridia princeps Pachyptilus abbreviatus
*4750. Lat. 55?35'15" N, long. 132?33' W.; coast of Alaska; August 19, 1905; 175-0fathoms; 4 speciesEucbirella brevisEuchirella messinensis Euchirella pulchra Neocalanus gracilis4751. Lat. 55?56'59" N., long. 132?04'20" W.; coast of Alaska; August 30, 1905;
Candacia simplex 175-0 fathoms; 2 speciesScolecithrix danae
*4753. Lat. 55?41'30" N., long. 131?46'12" W.; Yes Bay to Seattle; October 1, 1905;150-0 fathoms; 8 speciesCalanus finmarchicusCandacia simplexGaetanus minor Gaidius affinis Pareuchaeta sarslHeterorbabdus papilliger Rhincalanus nasutusLucicutia flavicornis
*4756. Lat. 47?37'48" N., long. 122?26'20" W.; off Washington; November 16, 1905;75-0 fathoms; 13 speciesAcartia clausiiAcartia danaeAcartia longiremisCalanus finmarchicusCorycaeus catus
Corycaeus speciosusFarranula gracilisFarranula rostrataMetridia brevicaudaOithona similis
Paracalanus parvusPseudocalanus minutusTortanus discaudatus
*4757. Lat. 39? 18' N., long. 123? 58' W.; off California; May 4, 1906; 100-0 fathoms;20 speciesCalanus cristatusCalanus finmarchicusCandacia armataEucalanus attenuatusEucalanus mucronatusEucalanus muticusEuehaeta spinosa
Euchirella bitumidaEuchirella brevisEuchirella galeataEuchirella intermediaGaetanus pileatusMetridia longaPareuchaeta barbata
Pareuchaeta tonsaPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma xiphiasScolecithricella dentataUndeuchaeta major
*4758. Lat. 52?02' N., long. 132?53' W.; off Queen Charlotte Islands; May 19, 1906;300-0 fathoms; 20 speciesAetideus armatusArietellus simplexCalanus cristatusCalanus finmarchicusCalanus tonsusEuaetideus bradyiEucalanus attenuatus
Eucalanus monaehusEuchirella bitumidaEuchirella galeataGaetanus armigerGaidius brevispinusGaussia princepsMetridia longa
Pareuchaeta norvegicaPleuromamma abdomi-nalisPseudocalanus minutusScaphocalanus echinatuaScolecithricella dentataTortanus discaudatus
394 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
*4759. Lat. 53?05' N, long. 138?31' W.; coast of British Columbia; May 20, 1906;300-0 fathoms; 12 speciesCalanus cristatus Heterorhabdus papilliger Oithona similisCalanus finmarchicus Megacalanus princeps Pareuchaeta gracilisCalanus helgolandicus Metridia lucens Pareuchaeta hanseniiEucalanus elongatus Metridia princeps Scolecithricella minor
*4760. Lat. 53?53' N., long. 144?53' W.; coast of British Columbia; May 21, 1906;300-0 fathoms; 21 speciesCalanus cristatus Gaidius brevispinus Pareuchaeta norvegicaCalanus finmarchicus Heterorhabdus papilliger Pareuchaeta sarsiEucalanus attenuatus Megacalanus princeps Pleuromamma gracilisEucalanus elongatus Metridia longa Pleuromamma quadrungu-Eucalanus monachus Neocalanus gracilis lataEucalanus mucronatus Pachyptilus abbreviatus Pseudocalanus minutusEuchaeta spinosa Pachyptilus eui*ygnathusGaidius affinis Pareuchaeta gracilis4761. Lat. 53?57'30" N., long. 159?31' W.; Shumagin Islands; May 23, 1906; depthnot given ; 2 speciesParaugaptilus buchani Sapphirina intestinata4762. Lat 53?46' N., long. 164?29' W.; southeast of Ugamak Island; May 24, 1906;50-0 fathoms; 1 speciesCalanus finmarchicus4763. Lat. 53?57' N., long. 168?06' W.; south of Bogoslof Islands; May 28, 1906;300-0 fathoms; 2 speciesCalanus cristatus Eucalanus mucronatus4765. Lat. 53? 12' N? long. 171 ?37' W.; off Atka Island; May 29, 1908; 300-0fathoms; 11 speciesBathycalanus richardi Eucalanus elongatus Pareuchaeta norvegicaCalanus cristatus Pachyptilus eurygnathus Pontellina plumataEucalanus attenuatus Pareuchaeta barbata Pontellopsis perspicaxEucalanus crassus Pareuchaeta bisinuata4766. Lat. 52?38' N., long. 174?49' W.; off Konivji Island; May 31, 1906; 300-0fathoms; 6 speciesArietellus simplex Calanus tonsus Pleuromamma gracilisCalanus cristatus Eucalanus elongatus Pleuromamma xiphias4767. Lat. 54?12' N, long. 179?07'30" E.; Bering Sea; June 3, 1906; 300-0 fathoms;2 speciesCalanus finmarchicus Eucalanus monachus4774. Lat. 54? 33' N., long. 178 ?45' E.; Bering Sea, June 4, 1906; bottom; 1 speciesEucalanus elongatus4781. Lat. 52?14'30" N., long. 174?13' E.; off Agattu, Aleutian Islands; June 7,1906; 300-0 fathoms; 1 speciesCalanus cristatus
COPEPODS GATHERED BY ALBATROSS?WILSON 3954783. Lat. 52?55'30" N? long. 173?30' E.; off Attu, Aleutian Islands; June 9, 1906;30-0 fathoms; 1 speciesEucalanus elongatus4785. Lat. 53?20' N., long. 170?33' E.; off Attu, Aleutian Islands; June 12, 1906;300-0 fathoms; 11 speciesAcartia clausii Canthocalanus pauper Heterorhabdus papilligerCalanus cristatus Eucalanus attenuatus Metridia longaCalanus finmarchicus Eucalanus elongatus Pleuromamma robustaCandacia uorvegica Eucalanus muticus|4793. Lat. 54?48' N., long. 164? 54' E.; southwest of Bering Island; June 16, 1906;300-0 fathoms; 18 speciesCalanus cristatus Eucalanus elongatus Metridia longaCalanus hyperboreus Eucalanus niucronatus Pachos punctatumCalanus tonsus Eucbaeta spinosa Pachyptilus eurygnathusCandacia armata Eucbirella brevis Pareuchaeta norvegicaDisseta palumboi Gaetanus kruppii Pleuromamma gracilisEucalanus attenuatus Gaidius brevispinus Scapbocalanus magnus4800. Lat. 49?06' N., long. 153?06' E.; north of Chirinkotan Island; June 22, 1906;300-0 fathoms; 6 speciesCalanus finmarchicus Mesorhabdus angustus Metridia princepsEucalanus monacbus Metridia longa Pareuchaeta sarsi4805. Lat. 44?33' N., long. 149?04' E.; off Hakodate, Japan; June 25, 1906; 200-0fathoms; 2 speciesCalanus cristatus Calanus hyperboreus4806. Lat. 42? 13' N., long. 144 ?21' E.; off Hokkaido, Japan; June 26, 1906; 200-0fathoms; 15 speciesCalanus cristatus Eucalanus elongatus Microsetella roseaCalanus finmarchicus Eucalanus niucronatus Paracalanus parvusCalanus hyperboreus Gaetanus curvispinus Pareuchaeta norvegicaCandacia norvegica Gaidius brevispinus Pleuromamma gracilisEucalanus attenuatus Metridia longa Pseudocalanus minutus4810. Lat. 41?17'20" N., long. 140?07' E.; Sea of Japan; July 16, 1906; 100-0fathoms; 1 speciesBatbycalanus richardl4850. Lat. 36?56' N, long. 132?00' E.; Sea of Japan; July 27, 1906; surface;2 speciesNannocalanus minor Scolecithricella vittata4889. Lat. 32?26' N., long. 129?22' K; Kagoshima Gulf, Japan; August 8, 1906;surface; 1 speciesClausocalanus arcuicornis4915. Lat. 31?31' N, long. 129?25'30" E.; southwest of Koshika Islands, EasternSea of Japan; August 12, 1905; [surface?]; 1 speciesEucbaeta marina
396 BULLETIN 100, UNITED STATES NATIONAL MUSEUM4926. Off Yaku Shima Island, Japan; August 14, 1906; 100-0 fathoms; 46 speciesAcartia longiremisAcrocalanus gracilisCandacia simplexCanthocalanus pauperCentropages calaninusCopilia mirabilisCopilia quadrataCorycaeus agilisCorycaeus lautusCorycaeus longistylisCorycaeus speciosusEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus mucronatusEucalanus subcrassus
Euchaeta marinaEuchaeta spinosaEuchirella brevisEuchirella curticaudaEuchirella intermediaEuchirella messinensisGaidius tenuispinusHaloptilus longicornisHaloptilus ornatusLabidocera lubbockiiLucicutia flavicornisNeocalanus gracilisNeocalanus robustiorNeocalanus tenuicornisOithona similisOncaea minuta
Paracalanus parvusPhaenna spiniferaPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma xiphiasRhincalanus cornutusSapphirina angustaSapphirina ovatolan-ceolataSeolecithrix danaeTemora styliferaUndeuchaeta majorUndeuchaeta plumosaUndinula caroliUndinula vulgaris4942. Lat. 31?23'10' N., long. 130?39'10" E.; Kagoshima Gulf, Japan; August 17,1906; 118-0 fathoms; 1 speciesNeocalanus tenuicornis4952. Lat. 31? 19' N., long. 132?11'30" E.; Bungo Channel, Japan; August 21, 1906;surface; 41 speciesAcartia danaeAcrocalanus gracilisCalanopia minorCaligus latifronsCandacia aethiopicaCandacia bispinosaCandacia simplexCephalophanes refulgensCopilia mirabilisCopilia quadrataEucalanus attenuatusEucalanus elongatusEucalanus monachusEuchaeta marina
Euchaeta spinosaFarranula carinataFarranula gibbulaLabidocera acutaLabidocera acutifronsLabidocera detruncataLabidocera kr0yeriLabidocera minutaMacrosetella gracilisNannocalanus minorNeocalanus gracilisNeocalanus tenuicornisOncaea minutaParacalanus parvus
Pleuromamma abdomi-nalisPleuromamma xiphiasPontella atlanticaPontella danaePontella lobiancoiPontella securiferPontellina plumataPontellopsis villosusSapphirina auronitensTemora longicornisTemora styliferaUndinula vulgarisVettoria granulosa5030. Lat. 46?29'30" N., long. 145 ?46' E.; Okhotsk Sea; September 29, 1906; depthnot given; 14 speciesBradyidius similisCalanus cristatusCalanus finmarchicusCalanus tonsusEucalanus attenuatus
Eucalanus mucronatusEuchaeta acutaGaidius tenuispinusMetridia longaMetridia lucens
Neocalanus robustiorParacalanus parvusPareuchaeta erebiPseudocalanus minutus
5063. Lat. 35?01'10" N., long. 13S?38'50" E.; Suruga Gulf, Japan; October 13,1906; 300-0 fathoms; 2 speciesPareuchaeta sarsi Pleuromama xiphias
COPEPODS GATHERED BY ALBATROSS?WILSON 3975102. Lat. 14?45' N., long. 120?12'30" E.; off southernJanuary 6, 1908; 28-0 fathoms; 34Acartia danaeCalanopia ellipticaCalanopia minorCandacia aethiopicaCandacia simplexCandacia turgidaCanthocalanus pauperCentropages furcatusCopilia mirabilisCopilia quadrataCorycaeus agilisCorycaeus speciosus
Eucalanus elongatusEucalanus mucronatusEucalanus subcrassusEuchaeta marinaEuchirella bellaFarranula concinnaLabidocera acutaLabidocera laevidentataLucicutia curtaLucicutia longicornisMacrosetella gracilisOncaea venusta
Luzon, Philippine Islands;speciesPhaenna spiniferaPontellina plumataPseudocalanus minutusSapphirina metallinaSapphirina opalinaSapphirina salpaeScolecithrix danaeTemora styliferaTortanus gracilisUndinula vulgaris
5105. Lat. 14?43'55" N., long. 120?12'50" E., off southern Luzon, PhilippineIslands; January 8, 1908; surface; 14 speciesCalanopia thompsoniCandacia aethiopicaCandacia armataCandacia bispinosaCandacia pachydactyla
Euchaeta marinaLabidocera acutaLabidocera acutifronsLabidocera pavoPontella valida
Pontellopsis bitumidaSapphirina opalinaScaphocalanus insolitusUndinula vulgaris
5110. Lat. 13?59'20" N., long. 120?75'45" E.; southern Luzon, Philippine Islands;January 16, 1908 ; surface ; 6 speciesCandacia bispinosaEucalanus elongatus Labidocera acutaPleuromamma gracilis Pleuromamma pisekiPontella surrecta5120. Lat. 13?45'30" N., long. 120?30'15" E.; west of Lubang, Philippine Islands;January 21, 1908; 350-0 fathoms; 110 speciesAcartia danaeAcrocalanus gracilisAegisthus mucronatusAegistbus spinulosusAmallothrix emarginataAmallothrix lobataArietellus plumiferArietellus simplexAugaptilus ancepsAugaptilus megalurusBathycalanus richardiBathypontia minorCandacia aethiopicaCandacia armataCandacia simplexCanthocalanus pauperCentraugaptilus horridusCentraugaptilus rattrayiCentropages violaceusCopilia quadrataCorycaeus agilisCorycaeus dubius
Corycaeus latusCorycaeus longistylisCorycaeus paciflcusCorycaeus pumilusCorycaeus speciosusEuaetideus bradyiEuaetideus giesbrechtiEucalanus attenuatusEucalanus bungiiEucalanus elongatusEucalanus mucronatusEucalanus subtenuisEuchaeta marinaEuchaeta spinosaEuchaeta wolfendeniEuchirella bitumidaEuchirella curticaudaEuchirella galeataEuchirella intermediaEuchirella messinensisEuchirella pulchraFarranula carinata
Gaetenus kruppiiGaetanus latifronsGaetanus milesGaetanus minorGaetanus pileatusGaidius affinisHaloptilus angusticepsHaloptilus longicornisHaloptilus ornatusHemirhabdus grimaldiiHeterorhabdus abbyssalisHeterorhabdus papilligerHeterostylites longicornisLophotlnix frontalisLophothrix latipesLucicutia curtaLucicutia flavicornisLucicutia geminaLucicutia longicornisLucicutia lucidaLucicutia macroceraLucicutia oralis
398 BULLETIN 100, UNITED STATES NATIONAL MUSEUM5120. Lat. 13?45'30" N., long. 120?30'15" E.; west of Lubang, Philippine Islands;350-0 fathoms; 110 species?ContinuedLucicutia tenuicaudaMacrosetella gracilisMecynocera clausiMegacalanus longicornisMetridia longaMetridia princepsMonacilla typicaNannocalanus minorNeocalanus gracilisNeocalanus robustiorOithona linearisOitbona similisOithona spinirostrisOncaea con iferaOncaea minuta
Onchocalanus affinisOnchocalanus hirtipesParacalanus parvusPareuchaeta braclyiPareuchaeta hanseniiPareuchaeta tonsaPareuchaeta tumidulaPhyllopus helgaePliyllopus imparPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma robustaPleuromamma xiphiasPseudocalanus minutus
Pseudochirella obtusaRhincalanus cornutusRhincalanus nasutusSapphirina auronitensScaphocalanus affinisScaphocalanus magnusScaphocalanus mediusScolecithricella braclyiScolecithricella dentataScottocalanus securifronsScottocalanus thomasiUndeuchaeta majorUndeuchaeta plumosaUndinula caroliUndinula vulgaris5125. Lat. 10?48' N., long. 121?48'30" E.; Sulu Sea, off southern Panay, PhilippineIslands; February 3, 1908; 365-0 fathoms; 6 speciesAcartia danaeEucalanus attenuatus Eucalanus mucronatus Pleuromamma xiphiasPleuromamma gracilis Rhincalanus cornutus5126. Lat. 10?34'45" N., long. 121?47'30" E.; Sulu Sea, off southern Panay, Philip-pine Islands; February 3, 1908; surface; 6 speciesRhincalanus cornutusRhincalanus nasutusSapphirina angusta Sapphirina ovatolanceo- Undinula vulgarislataUndinula caroli5128. Lat. 9?52'10" N., long. 121?49'35" E.; Sulu Sea, vicinity southern Panay,Philippine Islands ; February 4, 1908 ; surface ; 1 speciesLabidocera kr^yeri5129. Lat. 7?41'30" N., long. 122?01'45" E.; Sulu Sea, off Mindanao, PhilippineIslands; February 5, 1908; 100-0 fathoms; 71 speciesCalanoides brevicornisCandacia armataCandacia bipinnataCandacia bispinosaCandacia norvegicaCandacia simplexCanthocalanus pauperCentropages furcatusClausocalanus arcuicornisCopilia quadrataCorycaeus latusCorycaeus longistylisCorycaeus ovalisCorycaeus speciosusDisseta palumboi
Euaetideus giesbrechtiEuaugaptilus laticepsEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus monachusEucalanus mucronatusEucalanus pileatusEucalanus subcrassusEuchaeta acutaEuchaeta marinaEuchaeta spinosaEuchirella brevisEuchirella curticaudaHeterorhabdus papilliger
Heterorhabdus spinifronsHeterostylites longicornisLabidocera minutaLucicutia curtaLucicutia flavicornisLucicutia lucidaLucicutia ovalisMetridia curticaudaNannocalanus minorNeocalanus gracilisNeocalanus robustiorOithona similisOncaea minutaParacalanus parvusPareuchaeta erebi
COPEPODS GATHERED BY ALBATROSS?WILSON 3995129. Lat. 7?41'30" N., long. 122?01'45" E.; Sulu Sea, off Mindanao, PhilippineIslands; February 5, 1908; 100-0 fathoms; 71 species?ContinuedPareucliaeta gracilisPareuchaeta incisaPhaenna spiniferaPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma robustaPleuromamma xipbiasPontellopsis armataPseudocalanus ruinutus
Pseudocbirella divaricataRhincalanus cornutusRhincalanus nasutusSapphiriua metallinaSapphirina nigromaculataSapphiriua opalinaScaphocalanus magnusScolecitbricella abyssalisScolecitbricella auropec-ten
Scolecithricella bradyiScolecitbricella dentataScolecitbrix danaeTemora longicornisTemora styliferaTortanus gracilisTortanus murrayiUndinula caroli
5130. Lat. 7?35' N., long. 122?04'45" E.; Sulu Sea; February 5, 1908; bottom;1 speciesEucalanus bungii5133. Off Mindanao west, Philippine Islands; February 6, 1908; surface; 43speciesAcartia danaeAcrocalanus gracilisCalanopia ellipticaCalanopia minorCandacia aethiopicaCandacia bipinnataCentropages furcatusCorycaeus agilisCorycaeus catusCorycaeus lautusCorycaeus lougistylisCorycaeus speciosusCymbasoma rigidumEucalanus attenuatusEucalanus elongatusEucbaeta marina
Farranula carinataFarranula gibbulaFarranula rostrataLabidocera acutaLabidocera kr0yeriLabidocera minutaMacrosetella gracilisNeocalanus gracilisNeocalanus robustiorOitbona similisOncaea minutaOncaea similisOncaea venustaPleuromamma abdomi-nalisPontella securifer
Pontella validaPontellina plumataPontellopsis regalisPontellopsis strenuaPseudocalanus minutusRbincalanus cornutusSapphirina opalinaScolecitbrix danaeTemora discaudataTemora longicornisTemora styliferaUndinula vulgaris
5134. Lat. 6?44'12" N., long. 121?46'55" E.; Sulu Archipelago, near Basilan Island;February 7, 1908 ; 25-0 fathoms ; 36 speciesAcartia danaeAcrocalanus gracilisCalanopia minorCandacia bispinosaCandacia simplexCentropages furcatusCopilia quadrataCorycaeus agilisCorycaeus longistylisCorycaeus pacificusCorycaeus pumilusEucalanus attenuatus
Eucalanus crassusEucalanus subcrassusEucalanus subtenuisEucbaeta marinaFarranula concinnaHaloptilus mucronatusHeterorbabdus spinifronsLabidocera acutaLabidocera kr0yeriNeocalanus gracilisOncaea minutaParacalanus parvus
Phaenna spiniferaPontellina plumataPontellopsis strenuaRhincalanus cornutusRhincalanus nasutusSapphirina auronitensSapphirina opalinaScolecithrix danaeTemora styliferaUndinula caroliUndinula darwiniiUndinula vulgaris
400 BULLETIN 100, UNITED STATES NATIONAL MUSEUM5155. Lat. 5?13'40' N., long. 119?57'20" E.; Tawi Tawi Group, Sulu Archipelago;February 19, 1908; 8 fathoms; 34 speciesEucalanus elongatusEuchaeta marinaLabidocera acutifronsLabidocera detruncataNannoealanus minorNeocalanus gracilisOithona similisOncaea venustaParacalanus parvusPhaenna spiniferaPleuromamma xiphias
Acartia danaeAcrocalanus monachusAmenophia peltataCandacia bipinnataCandacia longimanaCentropages furcatusCopilia mirabilisCorycaeus agilisCorycaeus dubiusCorycaeus lautusCorycaeus speciosusEucalanus attenuatus5171. Lat. 5?05' N., long. 119?28' E.; Sulu Archipelago; February 28, 1908; surface;1 speciesAcartia laxa5175. Lat. 9?21' N., long. 121?37'45" E.; Sulu Sea; March 8, 1908; surface; 48species
Pontella securiferPontellina plumataPseudocalanus minutusSappbirina irisSappbirina metallinaSappbirina nigromaculataScolecithrix danaeTemora styliferaUndeuchaeta majorUndinula darwiuiiUndinula vulgaris
Acartia danaeAcartia discaudataAcartia laxaAcartia negligensAcrocalanus gibberAcrocalanus gracilisCalanopia auriviliiCalanopia ellipticaCalanopia minorCalocalanus pavoCandacia armataCandacia bispinosaCandacia simplexCanthocalanus pauperCentropages furcatusCopilia quadrata
Corycaeus latusCorycaeus pumilusCorycaeus speciosusEucalanus attenuatusEucalanus crassusEucalanus elongatusEuchaeta marinaFarranula carinataFarranula gibbulaFarranula rostrataGaidius brevispinusLabidocera acutaLabidocera euchaetaLabidocera minutaMetridia longaMicrosetella norvegica
Nannoealanus minorNeocalanus gracilisOithona similisOncaea ornataOncaea venustaPontella validaPontellina plumataPontellopsis armataPontellopsis bitumidaTemora longicornisTemora styliferaTemora turbinataTortanus barbatusTortanus gracilisTortanus muriayiUndinula vulgaris5176. Lat. 13?35'15" N., long. 120?53'20" E.; Verde Island Passage, PhilippineIslands; March 24, 1908; surface; 22 speciesAcartia danaeAcartia discaudataAcartia negligensCalanopia aurivilliiCentropages furcatusCorycaeus latusCorycaeus pumilusEucalanus elongatus
Farranula gibbulaFarranula rostrataGaidius brevispinusMetridia longaMicrosetella norvegicaOithona similisPontella validaPontellopsis regalis
Temora longicornisTemora styliferaTemora turbinataTortanus bai'batusTortanus gracilisTortanus murrayi
5177. Lat. 13?35' N., long. 120?54'36" E.; Verde Island Passage, Philippine Islands;March 24, 1908; 25 fathoms; 1 speciesLabidocera acuta
COPEPODS GATHERED BY ALBATROSS?WILSON 4015178. Lat. 12?43' N., long. 122?06'15" E.; vicinity Romblon Island, PhilippineIslands; March 25, 1908; [surface, electric light]; 1 speciesEucalanus niucronatus5179. Lat. 12?38'15" N., long. 122?12'30" E.; off Romblon Harbor, PhilippineIslands; March 25, 1908; surface; 3 speciesEucalanus mucronatus Labidocera acuta I'leuromamma xiphias5180. Lat. 12?28'30" N., long. 122?15' K; off Romblon, Philippine Islands; March26, 1908; surface; 47 speciesAcartia dauaeAcrocalanus gracilisCalanopia ellipticaCalanopia minorCandacia armataCandacia bipinnataCandacia bispinosaCandacia norvegicaCandacia simplexCandacia varicansCanthocalanus pauperCentropages furcatusCorycaeus agilisCorycaeus latusCorycaeus longistylisCorycaeus speciosusEucalanus attenuatus
Eucalanus crassusEucalanus elongatusEucalanus subcrassusEucalanus subtenuisEuchirella intermediaLabidocera acutaLabidocera eucbaetaMacrosetella gracilisNannocalanus minorNeocalanus gracilisOncaea venustaParaealanus parvusPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma xiphiasPontellina plumata
Pseudocalanus minutusRhincalanus cornutusRhincalanus nasutusSapphirina auronitcnsSapphirina opalinaScolecithricella auropec-tenScolecithrix danaeTemora discaudataTemora longicornisTemora styliferaTemorites brevisUndeucbaeta plumosaUndinula caroliUndinula vulgaris
5185. Lat. 10?05'45" N., long. 122?18'30" E.; between Panay and Negros, Philip-pine Islands; March 30, 1908; 550-0 fathoms; 146 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisAegisthus mucronatusAegisthus spinulosusAetideus armatusAmallopbora typicaAmallothrix propinquaArietellus aculeatusArietellus plumiferArietellus simplexBradyidius armatusCalanopia aurivilliiCalanopia ellipticaCalanopia minorCandacia aethiopicaCandacia armataCandacia bipinnataCandacia bispinosaCandacia longimanaCandacia norvegicaCandacia simplex
Canthocalanus pauperCentraugaptilus horridusCentraugaptilus rattrayiCentropages furcatusCbiridius armatusChiridius obtusifronsChirundina streetsiCopilia mirabilisCopilia quadrataCornucalanus cheliferCorycaeus longistylisDisseta paluniboiEuaetideus bra.lyiEuaetideus giesbrechtiEuaugaptilus nodifronsEuaugaptilus squamatusEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus monachusEucalanus mucronatusEucalanus subcrassus
Eucalanus subtenuisEuchaeta acutaEuchaeta marinaEuchaeta mediaEucbaeta puberaEuchaeta spinosaEuchirella curticaudaEuchirella galeataEuchirella bitumidaEuchirella brevisEuchirella intermediaEuchirella messinensisEuchirella pulchraFarrania frigidusFarranula gibbulaGaetanus curvispinusGaetanus kruppiiGaetanus latifronsGaetanus pileatusGaidius affinisHaloptilus fonsHaloptilus longicornis
402 BULLETIN 100, UNITED STATES NATIONAL MUSEUM5185. Lat. 10?05'45" N., long. 122?18'30" E.; between Panay and Negros; March30, 1908; 550-0 fathoms; 146 species?ContinuedHaloptilus omatusHemirhabdus grimaldiiHeterorhabdus clausiiHeterorbabdus norvegicusHeterorhabdus papilligerHeterorbabdus robustusHeterorbabdus spinifronsHeterostylites longicornisHeterostylites majorLabidocera minutaLophothrix frontalisLubbockia aculeataLubbockia squillimanaLucicutia curtaLucicutia flavicornisLucicutia graudisLucicutia longicornisLucicutia lucidaLucicutia macroceraLucicutia tenuicaudaMegacalanus longicornisMegacalanus princepsMesorhabdus angustusMetridia longaMetridia princepsMormonilla pbasmaNannocalanus minorNeocalanus gracilis
Neocalanus tenuicornisOitbona similisOncaea minutaOncaea venustaOncbocalanus cristatusOnchocalanus hirtipesOncbocalanus steueriPacbos punctatumParacalanus parvusPareuchaeta barbataPareuchaeta gracilisPareuchaeta hanseniiPareuchaeta tonsaPhaenna spiniferaPhyllopus aequalisPhyllopus bidentatusPbyllopus giesbrechtiPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma pisekiPleuromamma robustaPleuromamma xiphiasPseudocalanus minutusRhincalanus cornutusRbinealanus nasutusSapphirina auronitensSapphirina metallina
Sapphirina nigromaculataSapphirina opalinaSapphirina scarlataScaphocalanus affinisScaphocalanus anguli-fronsScaphocalanus brevicornisScaphocalanus magnusScolecithricella abyssalisScolecithricella auro-pectenScolecithricella bradyiScolecithricella dentataScolecithricella tyclemanniScolecithrix danaeScottocalanus persecansScottocalanus securifronsScottocalanus setosusScottocalanus thomasiTemora discaudataTemora longicornisTemora styliferaUndeuchaeta majorUndeuchaeta plumosaUndinula caroliUndinula darwiniiUndinula vulgaris
5186. Lat. 9?53'30" N., long. 122?15'30" E.; between Panay and Negros, PhilippineIslands; March 30, 1908; surface; 61 speciesAcartia negligensAcrocalanus gibberAcrocalanus gracilisCalanopia americanaCalanopia ellipticaCalanopia minorCalanopia thompsoniCandacia bispinosaCandacia norvegicaCandacia simplexCanthocalanus pauperCentropages furcatusCopilia mirabilisCorycaeus agilisCorycaeus catusCorycaeus latusCorycaeus pumilusCorycaeus speciosusEucalanus attenuatusEucalanus crassusEucalanus elongatus
Eucalanus monachusEucalanus mucronatusEuchaeta acutaEuchaeta marinaEuchaeta spinosaFarranula concinnaFarranula gibbulaGaetanus minorLabidocera acutaLabidocera acutifronsLabidocera minutaLucicutia ovalisMacrosetella gracilisMetridia longaMicrosetella roseaNannocalanus minorNeocalanus gracilisNeocalanus tenuicornisOncaea minutaOncaea similisOncaea venusta
Phaenna spiniferaPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma robustaPleuromamma xiphiasPontellina plumataPontellopsis armataPseudocalanus minutusRhincalanus cornutusRhincalanus nasutusSapphirina auronitensSapphirina nigromaculataScolecithrix danaeTemora discaudataTemora longicornisTemora styliferaUndeuchaeta plumosaUndinula caroliUndinula vulgaris
COPEPODS GATHERED BY ALBATROSS?WILSON 4035187. Lat. 9?16'45" N., long. 123?21'15" E.; off Negros, Philippine Islands; March31, 1908; [between 225-0 fathoms; surface?]; 1 speciesEucalanus elongatus5190. Lat. 10?08'15" N., long. 123?16'45" E.; east coast of Negros, PhilippineIslands; April 1, 1908; 250-0 fathoms; 60 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisBradyidius arniatusCalanopia ellipticaCandacia armataCandacia pachydactylaCandacia simplexCanthocalanus pauperCentropages f'urcatusCopilia mirabilisCopilia quadrataCorycaeus agilisCorycaeus latusCorycaeus lautusCorycaeus longistylisCorycaeus speciosusEuaetideus bradyiEucalanus attenuatusEucalanus elongatusEucalanus mucronatus
Euchaeta marinaEuchaeta spinosaEuchirella intermediaEuchirella pulchraHaloptilus angusticepsHaloptilus longicornisLabidocera acutaLucicutia flavicornisLucicutia lucidaMetridia longaNannocalanus minorNeocalanus gracilisOithona similisOncaea ornataOncaea similisOncaea venustaPachyptilus abbreviatusParacalanus parvusPhaenna spiniferaPleuromamma abdoini-nalis
I'll ui-omamma gracilisPleuromamma xiphiasPontellina plumataPseudocalauus minutusRhincalanus cornutusRbincalanus nasutusSapphirina angustaSapphirina auronitensSapphirina nigromaeulataScolecithricella abyssalisScolecithricella auropec-tenScolecithricella bradyiScolecithrix danaeTeinora discaudataTemora longicornisTemora styliferaUndinula caroliUndinula darwiniiUndinula vulgaris
5191. Lat. 10?29'45" N., long. 123?31'15" E.; Tanon Strait, Philippine Islands;April 2, 1908 ; surface ; 3 speciesLabidocera acuta Nannocalanus minor Undinula vulgaris5198. Lat. 10?44'30" N., long. 124?07'30" E.; oflf northern Cebu, PhilippineIslands; April 3, 1908; surface; 36 speciesAcartia danaeCalanopia ellipticaCalanopia minorCalocalanus pavoCandacia armataCandacia bispinosaCandacia simplexCanthocalanus pauperCentropages calaninusCentropages furcatusCentropages gracilisCorycaeus agilisCorycaeus speciosus
Eucalanus elongatusEuchaeta marinaEuchaeta spinosaEuchirella intermediaFarranula gibbulaLabidocera acutaMetridia lucensNannocalanus minorNeocalanus gracilisOncaea venustaPleuromamma abdomi-nalisPleuromamma gracilis
Pleuromamma pisekiPleuromamma robustaPleuromamma xiphiasPontellina plumataSapphirina angustaSapphirina auronitensSapphirina nigromaeulataSapphirina saliTemora styliferaUndinula caroliUndinula vulgaris
5199. Lat. 9?31'50'
Temora stylifera
N., long. 124 ?40' E.; oflf Pamilacan, western Bohol Island,Philippine Islands; surface; 2 speciesUndinula darwinii843804?5(
404 BULLETIN 100, UNITED STATES NATIONAL MUSEUM5208. Lat. 11?45'53" N? long. 124?42'50" E.; off western Samar, PhilippineIslands; April 14, 1908; surface; 23 speciesAcartia danaeAcartia laxaAcrocalanus gibberAcrocalauus gracilisAcrocalanus longicornisCentropages furcatusChiridius armatusClausocalanus arcuicoruis
Corycaeus latusCorycaeus limbatusEucalanus attenuatusFarranula carinataFarranula gracilisLabidocera uiinutaLucicutia curtaMacrosetella gracilis
Nannocalanus minorOithona siniilisOncaea venustaParacalanus parvusPseudocalanus minutusSapphirina ovato-lanceolataTemora stylifera
5209. Lat. 11?45'25" N., long. 124?48'05" E.; off western Samar, PhilippineIslands; April 14, 1908; surface; 18 speciesAcartia danaeAcartia laxaAcrocalanus longicornisCanthocalanus pauperCentropages furcatusCorycaeus latus
Corycaeus speciosusEucalanus monachusFarranula carinataFarranula rostrataLabidocera acutaNeocalanus gracilis
Oithona linearisParacalanus parvusPseudocalanus minutusSapphirina angustaTemora discaudataTemora stylifera5211. Lat. 11?51'35" N., long. 124?14' E.; east of Masbate, Philippine Islands;April 17, 1908; surface; 4 speciesLabidocera acutaLabidocera detruncata Pseudocalanus minutus Undinula vulgaris5219. Lat. 13?21' N, long. 122?18'45" E.; Santa Cruz Harbor, Philippine Islands;April 23, 1908; surface; 2 speciesParacalanus parvus Pseudocalanus minutus5221. Lat. 13?38'15" N, long. 121?48'15" E.; between Marinduque and Luzon,Philippine Islands; April 24, 1908; [surface?]; 1 speciesScottocalanus securifrons5223. Lat. 13?36' N., long. 121?25'30" E.; off Santa Cruz, Philippine Islands;April 24, 1908; surface; 69 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisAcrocalanus monachusAmallothrix propiuquaCalanopia ellipticaCalanopia minorCalanopia thompsoniCaligus latifronsCandacia aethiopicaCandacia bispinosaCandacia norvegicaCandacia simplexCandacia varicansCentropages calaninus
Centropages furcatusCopilia mirabilisCopilia quadrataCorycaeus agilisCorycaeus latusCorycaeus longistylisCorycaeus speciosusCorycaeus typicusEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus mucronatusEucalanus subcrassusEucalanus subtenuisEuchaeta marina
Farranula concinnaFarranula gibbulaLabidocera acutaLabidocera minutaLucicutia ovalisMacrosetella gracilisNannocalanus minorNeocalanus tenuicornisOncaea similisOncaea venustaParacalanus parvusPleuromamma gracilisPleuromamma xiphiasPontella atlanticaPontella chierchiae
COPEPODS GATHERED BY ALBATROSS?WILSON 4055223. Lat. 13?36' N., long. 121'25'SO" E.; off Santa Cruz, Philippine Islands;April 24, 1908; surface; 69 species?ContinuedPontella feraPontella gracilisPontellina plumataPontellopsis armataPontellopsis brevisPontellopsis globosaPontellopsis regalisPontellopsis sinuata
Pseudanthessius pacificusPseudoealanus rninutusRhincalanus nasutusSapphirina auronitensSapphirina bicuspidataSapphirina metallinaSapphirina nigromaculataSapphirina stellata
Scolecithricella dentataScolecithrix danaeTeniora discaudataTemora longicornisTemora styliferaUndeuchaeta majorUndinula caroliUndinula vulgaris5224. Lat. 13?34'50" N., long. 121?21'45" E.; Marinduque to Luzon, PhilippineIslands; April 24, 1908; surface; 28 speciesCandacia aethiopicaCandacia bipinnataCandacia simplexCentropages furcatusCopilia mirabilisCopilia vitreaEucalanus attenuatusEucalanus elongatusEucalanus subcrassusEuchaeta acuta
Euchaeta marinaEuchaeta spinosaEuchirella brevisEuchirella intermediaEuchirella messinensisGaidius brevispinusLabidocera acutaNannocalanus minorNeocalanus gracilisOithona similis
Oncaea notopaPareuchaeta incisaPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma xiphiasSapphirina auronitensUndinula caroliUndinula vulgaris
5225. Lat. 14?13'24" N., long. 120?32'36" E.; off Corregidor, China Sea; May 4,1908; 40-0 fathoms; 51 speciesAcartia negligensAcrocalanus gracilisCalanopia ellipticaCalanopia minorCandacia bipinnataCandacia bispinosaCandacia simplexCanthocalanus pauperCentropages furcatusCopilia mirabilisCopilia quadrataCorycaeus agilisCorycaeus latusCorycaeus limbatusCorycaeus pumilusCorycaeus speciosusDisseta palumboi
Euaugaptilus elongatusEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus monachusEucalanus mucronatusEucalanus subcrassusEucalanus subtenuisEuchaeta acutaEuchaeta marinaLabidocera acutaLabidocera minutaLabidocera orsiniiLabidocera pavoNannocalanus minorNeocalanus gracilisOithona similis
Oncaea minutaOncaea similisOncaea venustaPachos punctatumPhaenna spiniferaPseudoealanus rninutusRhincalanus cornutusRhincalanus nasutusSapphirina auronitensSapphirina nigromaculataSapphirina opalinaScolecithrix danaeTeniora discaudataTemora longicornisTemora styliferaUndinula caroliUndinula vulgaris5226. Lat. 14?12'15" N., long. 120?32'24" E.; off Corregidor, China Sea; May 4,1908; surface; 33 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisAcrocalanus monachusAegisthus spinulosusAetideus armatus
Calanopia minorCandacia simplexCentropages furcatusCentropages violaceusCopilia mirabilisCopila quadrata
Corycaeus pumilusEucalanus attenuatusEucalanus crassusEucalanus mucronatusEucalanus subcrassusEuchaeta marina
406 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM5226. Lat. 14?12'15" N? long. 120?32'24" E.; off Corregidor, China Sea; May 4,1908; surface; 33 species?ContinuedEuchaeta spinosaFarranula gibbulaLabidocera acutaOncaea minutaOncaea ornata5227. Lat. 12?53'45'
Paracalauus parvusPontella chierchiaePseudocalanus miautusScolecithrix danaeSpinocalanus magnus
Temora discaudataTeuiora longicornisTemora styliferaUndinula caroliUndinula vulgaris
N., long. 121?52'30" E.; east of Mindoro, Philippine Islands;May 5, 1908; 290-0 fathoms; 64 speciesAcartia danaeAcrocalanus gracilisAegisthus spinulosusAetideus armatusAugaptilus megalurusBradyidius similisCandacia simplexCentropages violaceusChiridius obtusifronsChirundina streetsiCopilia mirabilisCopilia quadra taCorycaeus agilisCorycaeus longistylisEuaetideus giesbrechtiEucalauus attenuatusEucalanus elongatusEucalauus monachusEucalanus mucronatusEuchaeta acutaEuchaeta marinaEuchaeta media
Euchaeta spinosaEuchirella bitumidaEuchirella brevisEuchirella curticaudaEuchirella galeataEuchirella intermediaEuchirella messinensisFarranula rostrataGaetanus latifronsGaidius brevispinusGaidius tenuispiuusHaloptilus ornatusHeterorbabdus papilligerLucicutia longicornisLucicutia teuuicaudaMacrosetella gracilisMetridia longaMetridia princepsOithona similisOncaea minutaParacalanus nanusParacalanus parvus
Pareuchaeta erebiPareuehaeta gracilisPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma pisekiPleuromamma xiphiasRhincalanus cornutusRhincalanus nasutusSapphirina angustaSapphirina auronitensSapphirina nigromaculataSapphirina opalinaScolecithrix danaeScottocalanus persecansScottocalanus securifronsScottocalanus thomasiTemora longicornisUndeuchaeta majorUndeuchaeta plumosaUndinula vulgaris
5228. Lat. 12?29'30" N., long. 122?15'45 E.; south of Romblon, Philippine Islands;May 5, 1908 ; surface ; 37 speciesAcrocalanus gibberAcrocalanus gracilisCalanopia ellipticaCalanopia minorCandacia simplexCanthocalanus pauperCentropages furcatusCopilia mirabilisDysgamus ariommusEucalanus attenuatusEucalanus bungiiEucalanus crassusEucalanus elongatus
Eucalanus monachusEuchaeta spinosaFarranula gibbulaLabidocera acutaLabidocera kr0yeriLabidocera minutaLucicutia flavicornisLucicutia longicornisMetridia princepsNannocalanus minorOithona similisOncaea similisOncacea venusta
Pleuromamma xiphiasPontellopsis armataPontellopsis villosusRhincalanus cornutusRhincalanus nasutusTemora discaudataTemora longicornisTemora styliferaUndeuchaeta majorUndinula caroliUndinula vulgaris
5229. Lat. 10?48'45" N., long. 124?21'15" E.; between Cebu and Leyte, PhilippineIslands; May 7, 1908; 150-0 fathoms; 27 speciesCandacia simplex Copilia quadrata Corycaeus longistylisCopilia mirabilis Corycaeus latus Corycaeus speciosus
COPEPODS GATHERED BY ALBATROSS?WILSON 4075229. Lat. 10?48'45" N., long. 124?21'15" E.; between Cebu and Leyte, PhilippineIslands; May 7, 1908; 150-0 fathoms; 27 species?ContinuedEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus mucronatusEuchaeta marinaEuchaeta spinosaEuchirella brevisLabidocera acuta
Lucicutia flavicornisNaunocalanus minorParacalanus nanusParacalanus parvusPareuchaeta incisaPhaenna spiniferaPleuromamma gracilisPleuromamma piseki
Pleuromamma xiphiasRhincalanus nasutusSapphirina metallinaScolecithricella auropec-tenUndinula vulgaris
5230. Lat. 10?01'50" N? long. 124?42'30" E.; betweenIslands; May 7, 1908; surface; 24Acartia danaeAcartia negligensAcrocalanus gracilisCalanopia ellipticaCalanopia minorCandacia armataCandacia simplexCentropages furcatus
Copilia mirabilisCorycaeus speciosusEucalanus subcrassusEucalanus subtenuisEuchirella intermediaGaidius brevispinusLabidocera acutaLucicutia flavicornis
Bohol and Leyte, PhilippinespeciesMacrosetella gracilisNeocalanus gracilisSapphirina salpaeScaphocalanus merlinsScolecithricella dentataTemora discaudataTemora styliferaUndinula vulgaris5231. Lat. 10?01'15" N? long. 124?43'15" E.; between Bohol and Leyte, PhilippineIslands; May 7, 1908; 80-0 fathoms; 84 speciesAcartia danaeAcartia laxaAcrocalanus gracilisAmallothrix propinquaArietellus aculeatusCalanopia ellipticaCalanopia minorCandacia armataCandacia simplexCanthocalanus pauperCentropages furcatusChiridius armatusChirundina streetsiClausocalanus arcuicornisCorycaeus limbatusCorycaeus speciosusDisseta palumboiEuaugaptilus nodifronsEucalanus attenuatusEucalanus bungiiEucalanus elongatusEucalanus monachusEucalanus mucronatus
?Eucalanus subcrassusEuchaeta acutaEuchaeta marinaEuchaeta puberaEuchaeta spinosaEuchirella brevis
Euchirella curticaudaEuchirella galeataEuchirella pulchraFarranula rostrataGaidius tenuispinusHeterorhabdus papilligerHeterorhabdus robustusHeterorhabdus spinifronsLabidocera acutaLabidocera minutaLucicutia flavicornisLucicutia tenuicaudaNannocalanus minorOithona similisOncaea coniferaOncaea minutaOncaea venustaOnchocalanus cristatusOnchocalanus hirtipesParacalanus nanusParacalanus parvusParaugaptilus buchaniPareuchaeta bradyiPareuchaeta gracilisPareuchaeta incisaPareuchaeta norvegicaPhaenna spiniferaPleuromamma abdomi-nalis
Pleuromamma gracilisPleuromamma robustaPleuromamma xiphiasPontellina plumataPseudocalanus minutusRhincalanus nasutusSapphirina angustaSapphirina nigromaculataSapphirina opalinaSapphirina ovatolanceo-lataScaphocalanus echinatusScaphocalanus insolitusScaphocalanus magnusScaphocalanus robustusScolecithricella abyssalisScolecithricella auro-pectenScottocalanus farraniScottocalanus helenaeScottocalanus persecansScottocalanus securifronsScottocalanus setosusScottocalanus thomasiScottocalanus longispinusTemora styliferaUndeuchaeta majorT'ndeuchaeta plumosaUndinula caroli
408 BULLETIN 100, UNITED STATES NATIONAL MUSEUM5232. Lat. 10?00'45" N., long. 124?44'06" E.; between Bohol and Leyte, PhilippineIslands ; May 7, 1908 ; surface ; 18 speciesAcartia danaeAcrocalanus gibberCalanopia ellipticaCalanopia minorCandacia bispinosaCentropages furcatus
Eucalanus attenuatusEucalanus pileatusEucalanus subtenuisEuchirella bitumidaLabidocera acutaLucicutia longicornis
Paracalanus parvusPsendocalanus rainutusSapphirina longifurcaTemora longicornisTemora styliferaVettoria granulosa5233. Lat. 10?00'22" N, long. 124?45'06" E.; between Bohol and Leyte, PhilippineIslands; May 7, 1908; 100-0 fathoms; 65 speciesAcartia danaeAcartia negligensAcrocalanus gibberAcrocalanus gracilisAetideus armatusAmallothrix gracilisAmallothrix obtusifronsAmallothrix propinquaCalauopia aurivilliiCandacia bispinosaCandacia simplexCentropages furcatusClausocalanus furcatusEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus monacbusEucalanus mucronatusEucalanus subcrassusEucbaeta acutaEuchaeta marinaEuchaeta spinosaEucbirella bitumida
Euchirella brevisEuchirella curticaudaEucbirella galeataEuchirella intermediaEuchirella maximaFarranula carinataGaidins brevispinusHaloptilus angusticepsHeterorhabdus norvegicusHeterorbabdus papilligerHeterorhabdus spinifronsLucicutia flavicornisLucicutia geminaLucicutia longicornisLucicutia lucidaLucicutia tenuicaudaNeocalanus gracilisOncaea minutaOncaea venustaParacalanus parvusPareuchaeta incisaPhaenna spinifera
Pleuromamma abdomi-nalisPleuromamma gracilisPleuromamma robustaPleuromamma xiphiasRhincalanus cornutusRhincalanus nasutusSapphirina nigromaculataSapphirina opalinaScaphocalanus affinisScaphocalanus robustusScaphocalanus subbrevi-cornisScolecithricella auropec-tenScolecithricella bradyiScottocalanus longispinusScottocalanus thomasiTemora styliferaUndeuchaeta majorUndeuchaeta plumosaUndinula darwiniiValdiviella insignis5234. Lat. 10?00' N? long. 124?46'06" E.; between Bohol and Leyte, PhilippineIslands; May 7, 1908; 15-0 fathoms; 29 speciesAcartia danaeAcartia longiremisAcrocalanus gracilisAnomalocera patersoniiCalanopia aurivilliiCandacia bipinnataCopilia quadrataCorycaeus agilisCorycaeus latusEucalanus attenuatus
Eucalanus monachusFarranula carinataHeterorhabdus norvegicusMicrosetella roseaNannocalanus minorNeocalanus gracilisNeocalanus robustiorOncaea minutaPleuromamma abdomi-nalis
Pleuromamma gracilisPleuromamma pisekiPontellopsis armataPseudocalanus minutusRhincalanus nasutusSapphirina angustaSapphirina auronitensTemora styliferaUndeuchaeta plumosaUndinula caroli5240. Lat. 6?49'36" N., long. 126?15' E.; Puiada Bay, Mindanao, Philippine Islands;May 14, 1908; 115-0 fathoms; 42 speciesAcrocalanus gibberAcrocalanus gracilis Acrocalanus longicornisCandacia simplex Copilia mirabilisCopilia quadrata
COPEPODS GATHERED BY ALBATROSS?WILSON 4095240. Lat. 6?49'36" N., long. 126?15' E.; Pujada Bay, Mindanao, Philippine Islands;May 14, 1908; 115-0 fathoms; 42 species?ContinuedCorycaeus agilisCorycaeus limbatusCorycaeus longistylisCorycaeus speciosusEucalauus attenuatusEucalanus elongatusEuchaeta marinaEuchaeta spinosaFarranula coucinnaHaloptilus acutifronsHaloptilus angusticepsHaloptilus longicornisHaloptilus ornatus
Haloptilus spinicepsLucicutia flavicornisLucicutia tenuicaudaMecynocera clausiNeocalanus gracilisOithona similisOncaea minutaOncaea ornataOncaea similisParacalanus parvusPhaenna spiniferaPleuromamma gracilisPontella fera
Rhincalanus cornutusSapphirina auronitensSapphirina stellataScolecithricella auro-pectenScolecithrix danaeScottocalanus longispiuusTemora discaudataTemora styliferaUndinula caroliUndinula vulgaris
5246. Lat. 6?29'15' N., long. 126?18'45" E.; east of Mindanao; May 15, 1908;100-0 fathoms; 75 speciesAcartia longiremisAcrocalanus gracilisAcrocalanus monachusAugaptilus longicaudatusCalanoides brevicornisCalanopia ellipticaCalanopia minorCalanus tonsusCandacia simplexCentropages gracilisCentropages violaceusCopilia denticulataCopilia quadrataCorycaeus flaccusCorycaeus furciferCorycaeus limbatusCorycaeus longistylisCorycaeus speciosusCorycaeus typicusEuaetideus giesbrechtiEucalanus attenuatusEucalanus mucronatusEuchaeta acutaEuchaeta marinaEuchaeta spinosaEuchirella bitumida
Euchirella brevisEuchirella curticaudaEuchirella galeataEuchirella intermediaFarranula carinataFarranula gibbulaGaetanus minorGaitlius tenuispinusHaloptilus bullicepsHaloptilus longicornisHaloptilus spinicepsHeterorhabdus spinifronsLucicutia flavicornisLucicutia tenuicaudaMiracia efferataMonacilla semispinaMonacilla typicaNannocalanus minorNeocalanus gracilisOithona linearisOithona similisOithona spinirostrisOncaea coniferaOncaea minutaOncaea venustaParacalanus parvus
Phaenna spiniferaPleuromamma gracilisPleuromamma pisekiPleuromamma quadrungu-lataPleuromamma robustaPleuromamma xiphiasPontella feraPontellina plumataRhincalanus cornutusSapphirina nigromaculataScolecithricella auro-pectenScolecithricella dentataScolecithrix danaeScottocalanus longispinusScottocalanus securifronsTemora styliferaTemora turbinataTortanus gracilisTortanus murrayiUndeuchaeta majorUndeuchaeta plumosaUndinula caroliUndinula vulgaris
5247. Lat. 7?02' N., long. 125?38'45" E.; Gulf of Davao, Mindanao, PhilippineIslands; May 18, 1908; surface; 1 species
* Corycaeus speciosus5258. Lat. 10?27'45" N, long. 122?12'30" E.; off southern Panay, PhilippineIslands; June 2, 1908; surface; 3 speciesEuchaeta marina Undinula caroli Undinula vulgaris
410 BULLETIN 100, UNITED STATES NATIONAL MUSEUM5262. Lat. 12?37'30" N., long. 121?37'30" E., off eastern Mindoro, PhilippineIslands; June 4, 1908; surface; 53 speciesAcartia danaeAcartia negligensAcrocalanus gibberAcrocalanus gracilisAcrocalanus longicornisAcrocalanus monachusAegisthus mucronatusAegisthus spinulosusCalanopia aurivilliiCalanopia ellipticaCandacia bispinosaCandacia simplexCentropages furcatusCentropages kr^yeriClausocalanus arcuicornisClytemnestra scutellataCopilia quadrataCorycaeus agilis
Corycaeus lautusCorycaeus limbatusCorycaeus longistylisCorycaeus pumilusCorycaeus speciosusEucalanus attenuatusEucalanns elongatusEucalanus monachusEucalanus subcrassusEuchaeta bebesEuchaeta marinaFarranula carinataFarranula gibbulaFarranula rostrataLabidocera acutaLabidocera acutifronsLabidocera detruncataLabidocera minuta
Metridia longaMicrosetella noi-vegicaNannocalanus minorOitbona similisOncaea con iferaOncaea minutaOncaea venustaParacalanus parvusPontella surrectaPontellina plumataPseudocalanus minutusTemora discaudataTemora longicornisTemora stylif'eraTemora turbinataUndinula caroliUndinula vulgaris
5263. Lat. 12?38'30" N., long. 121?37'30" E.; off eastern Mindoro, PhilippineIslands; June 4, 1908; 65-0 fathoms; 75 speciesAcartia negligensAcrocalanus gibberAmallothrix falciferCalanopia ellipticaCalanopia minorCandacia longimanaCandacia simplexCentropages furcatusClausocalanus arcuicornisCopilia mirabilisCopilia quadrataCopilia vitreaCorycaeus agilisCorycaeus limbatusCorycaeus ovalisCorycaeus pumilusCorycaeus speciosusEucalanus attenuatusEucalanus elongatusEucalanus monachusEucalanus mucronatusEuchaeta marinaEuchaeta spinosaEuchirella bitumidaEuchirella curticaudaEuchirella galeata5267.
Euchirella intermediaEuchirella messinensisFarranula gibbulaFarranula rostrataIleterorhabdus papilligerHeterorhabdus spinifronsLabidocera acutaLucicutia flavicornisLucicutia tenuicaudaMacrosetella gracilisMetridia longaNannocalanus minorNeocalanus gracilisOithona linearisOncaea coniferaOncaea minutaParacalanus aculeatusParacalanus parvusPareuchaeta bisinuataPareuchaeta gracilisPareuchaeta incisaPareuchaeta tonsaPhaenna spiniferaPleuromamma abdomi-nalisPleuromamma borealis
Pleuromamma gracilisPleuromamma pisekiPleuromamma quadrun-gulataPleuromamma xiphiasPseudocalanus minutusRatania flavaRhincalanus cornutusSapphirina angustaSapphirina auronitensSapphirina nigromaculataSapphirina salpaeSapphirina scarlataScaphocalanus echinatusScolecithricella abyssalisScolecithricella auropec-tenScolecithricella bradyiScolecithrix danaeScottocalanus persecansTemora discaudataTemora longicornisTemora styliferaUndeuchaeta majorUndeuchaeta plumosaUndinula vulgarisLat. 13?42'20" N., long. 120?58'25" E.; Verde Island Passage, PhilippineIslands; June 8, 1908; surface; 1 speciesLabidocera minuta
COPEPODS GATHERED BY ALBATROSS?WILSON 41 15281. Lat. 13?52'45" N., long. 120?25' E.; off southern Luzon, Philippine Islands;July 18, 1908; surface; 1 speciesCanthocalanus pauper5284. Lat. 13?42'05" N., long. 120?30'45" E.; off southern Luzon, PhilippineIslands; July 20, 1908; surface; 1 speciesNeocalanus robustior5285. Lat. 13?39'36" N, long. 120?32'55" E.; off southern Luzon, PhilippineIslands; July 20, 1908; surface; 1 speciesChiridius armatus5287. Lat. 13?37'40" N., long. 120?39' E.; off southern Luzon, Philippine Islands;July 20, 1908; 310-0 fathoms; 36 speciesAinallothrix emarginata Gaetanus kruppii Pareuchaeta scottiArietellus simplex Gaetanus latifrons Pareuchaeta tumidulaCentraugaptilus horridus Gaetanus pileatus Pennella (immature)Euaugaptilus laticeps Haloptilus ornatus Pleuromamma xiphiasEucalanus attenuatus Lophothrix frontalis Ehincalanus cornutusEucalanus elongatus Lucicutia longicornis Rhincalanus nasutusEucalanus mucronatus Megacalanus longicornis Sapphirina auronitensEuchirella bitumida Metridia atra Scottocalanus longispinusEuchirella curticauda Metridia longa Scottocalanus persecansEuchirella intermedia Metridia princeps Scottocalanus securifronsEuchirella rostrata Pareuchaeta incisa Tortanus forcipatusGaetanus curvispinus Pareuchaeta sarsi Undeucbaeta major5292. Lat 13?28'45" N, long. 121?01'12" E.; off southern Luzon, PhilippineIslands; July 23, 1901 [surface?]; 1 speciesLucicutia longicornis5296. Lat. 13?40'09" N., long. 120?57'45" E.; off southern Luzon, PhilippineIslands; July 24, 1908; surface; 4 speciesEuchirella bitumida Gaetanus minor Oncaea coniferaFarranula carinata5299. Lat. 20?05' N., long. 116?05' E.; off southern Luzon, Philippine Islands;August 8, 1908; surface; 15 speciesCentropages furcatus Labidocera detruncata Paraealanus parvusEucalanus monacbus Labidocera minuta Pontella feraFarranula gibbula Nannocalanus minor Pontella validaFarranula rostrata Neocalanus gracilis Pontellopsis bitumidaLabidocera acuta Oncaea minuta Temora styliferaf5301. Lat. 20?37' N., long. 115?43' E.; China Sea, off Hong Kong; August 8,1908; surface; 31 speciesAcartia negligens Calocalanus pavo Corycaeus limbatusAcrocalanus gibber Candacia simplex Corycaeus longistylisAcrocalanus gracilis Clytemnestra scutellata Eucalanus monacbusArietellus tripartitus Copilia denticulata Eucalanus subtenuis
412 BULLETIN 100, UNITED STATES NATIONAL MUSEUM15301. Lat. 20?37' N., long. 115?43' E.; China Sea, off Hong Kong; August 8, 1908;surface; 31 species?ContinuedFarranula carinataFarranula curtaFarranula gibbulaFarranula gracilisLabiclocera minutaLucicutia lucidaMacrosetella gracilis
Metridia longaNannocalauus minorNeocalanus robustiorOculosetella gracilisOncaea venustaParacalanus parvusPseudocalanus minutus
Sappbirina auronitensTeinora discaudataTemora longicornisTemora styliferaTortanus murrayi
5308. Lat. 21?54' N., long. 115?42' E.; China Sea, off Hong Kong; November 4,1908; 62-0 fathoms; 9 speciesCalanopia aurivilliiCandacia aethiopicaCorycaeus longistylis Euchaeta marinaMacrosetella gracilisOucaea minuta Oncaea venustaSappbirina auronitensUndinula caroli5309. Lat. 21?53' N., long. 115?51' E.; China Sea, off Hong Kong; 62-0 fathoms;9 species Paracalanus parvusPseudocalanus minutusUndinula vulgarisCandacia norvegicaFarranula rostrataGaidius brevispinus Nannocalanus minorOitbona similisOucaea minuta5310. Lat. 21?33' N., long. 116?13' E.; China Sea, off Hong Kong; November 4, 1908;[surface?]; 1 speciesFarranula rostratat5S12. Lat. 21?30' N., long. 116?32' E.; China Sea, near Hong Kong; November 4,
Acartia danaeAcrocalanus gracilisFarranula rostrata
1908; surface; 9 speciesGaidius brevispinusLabidocera acutaMacrosetella gracilis Neocalanus gracilisOncaea minutaOncaea venusta5319. Lat. 21?31' N., long. 117?53' E.; China Sea, near Formosa; November 5, 1908;
Acartia danaeArietellus armatusCalanopia ellipticaCandacia simplexCandacia turgidaCentropages calaninusCentropages furcatusCopilia mirabilisCorycaeus agilisCorycaeus lautusCorycaeus longistylisCorycaeus speciosusEucalauus attenuatusEucalanus crassusEucalauus elongatusEuchaeta marinaEucbirella intermediaEucbirella messinensisFarranula eoneinna
20-0 fathoms; 54 speciesHaloptilus mucrouatusLabidocera acutaLabidocera detruncataLabidocera minutaLucicutia curtaLucicutia longiserrataNannocalanus minorNeocalanus gracilisOitbona similisOncaea ornataOncaea venustaParacalanus parvusPareuchaeta gracilisPareuchaeta incisaPareuchaeta tumidulaPhaenna spmiferaPleuromamma abdomi-nalisPontella danae
Pontellina plumataPontellopsis strenuaSapphirina angustaSapphirina auronitensSapphirina nigromaculataSapphirina opalinaSapphirina stellataScolecithricella bradyiScolecithrix danaeStephos perplexusTemora discaudataTemora longicornisTemora styliferaUndeuchaeta majorUndeuchaeta plumosaUndinula caroliUndinula vulgaris
COPEPODS GATHERED BY ALBATROSS?WILSON 413t5320. Lat. 20?58' N., long. 120?03' E.; China Sea, off Formosa; November 9, 1908;500-0 fathoms; 90 speciesAeartia longiremisAcrocalanus gibberAcrocalanus gracilisAcrocalanus monachusAegisthus mucronatusBathypontia minorCalanoides brevicornisCalanopia ellipticaCalanopia minorCandacia simplexCentropages furcatusChii'idiella macrodactylaClausocalanus arcuicornisConaea gracilisCopilia denticulataCopilia mirabilisCopilia quadrataCorycaeus agilisCorycaeus lautusCorycaeus limbatusCorycaeus longistylisCorycaeus ovalisCorycaeus pumilusCorycaeus speciosusCorycaeus typicusCymbasoma rigidumDisseta maximaDisseta palumboiEuaetideus bradyiEuaugaptilus angustus
Eucalanus attenuatusEucalanus elongatusEuchaeta marinaEuchaeta spinosaEuchirella galeataEuchirella messinensisFarranula carinataFarranula curtaFarranula gibbulaFarranula rostrataGaidius tenuispinusHaloptilus longicornisHaloptilus ornatusHeterorbabdus papilligerHeterorbabdus spinifronsLubbockia squillimanaLucicutia atlanticaLucicutia clausiiLucicutia flavicornisLucicutia lucidaMacrosetella gracilisMecyDocera clausiMegacalanus longicornisMetridia macruraMetridia venustaMicrosetella norvegicaMicrosetella roseaNannocalanus minorNeocalanus gracilisNeocalanus tenuicornis
Oculosetella gracilisOithona linearisOitbona similisOncaea coniferaOncaea minutaOncaea venustaOnchocalanus trigonicepaParacalanus parvusPareuchaeta gracilisPhaenna spiniferaPhyllopua helgaePleuromamma pisekiPleuromamma robustaPleuromamma xiphiasPontellina plumataPseudocalanus minutusPseudochirella scopularisEhincalanus cornutusSapphirina nigromaculataScaphocalanus magnusScolecithricella abyssalisScolecithricella auro-pectenScolecithricella dentataScolecithrix danaeTemora discaudataTemora styliferaUndinula caroliUndinula darwiniiUndinula vulgaris
5321. Lat. 20?19'30" N, long. 121?51'15" E.; China Sea, off Hong Kong; Novem-ber 9, 1908; 26-0 fathoms; 1 speciesScolecocalanus spinifer5334. Lat. 12?25'40 N., long. 120?38' E.; Mindoro Strait, Philippine Islands;surface; 10 speciesCandacia simplexCentropages furcatusCorycaeus longistylisCorycaeus ovalis
Corycaeus speciosusFarranula rostrataMacrosetella gracilisMiracia efferata
Pontellina plumataSapphirina auronitens
t5338. Lat. 11?33'45" N.,long. 119?24'45" E.; Palawan Passage, Philippine Islands;December 20, 1908; 10 feet to surface; 27 speciesAeartia negligensCalanopia ellipticaCalanopia minorCentropages furcatusCorycaeus agilis
Corycaeus longistylisCorycaeus ovalisCorycaeus speciosusEucalanus attenuatusEucalanus monachus
Euchaeta marinaFarranula carinataFarranula gibbulaLabidocera acutifronsMicrosetella rosea
414 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM
t5338. Lat. 11?33'45" N., long. 119?24'45" E.; Palawan Passage, Philippine Is-lands; December 20, 1908; 10 feet to surface; 27 species?ContinuedNannocalanus minorNeocalanus gracilisOithona spinirostrisOncaea minuta
Oncaea venustaParacalanus parvusPontellina plumataPseudocalanus minutus
Sapphirina auronitensTemora discaudataTemora styliferaUndinula vulgaris5340. Lat. 10'55'51" N, long. 119?14'12" E.; Malampaya Sound, Palawan, Philip-pine Islands; December 22, 1908; 17-22 fathoms; 58 speciesAcartia danaeAcartia longiremisAcartia negligensAcrocalanus gibberAcrocalanus gracilisAcrocalanus longicornisCalanopia aurivilliiCalanopia ellipticaCalanopia minorCandacia aethiopicaCandacia norvegicaCandacia simplexCantbocalanus pauperCentropages furcatusCentropages kr0yeriCentropages typicusCentropages violaceusClausocalanus arcuicornisClausocalanus furcatusCopilia quadrata
Corycaeus catusCorycaeus longistylisCorycaeus pacificusCorycaeus pumilusEucalanus monachusEuchaeta acutaEucbaeta marinaFarranula carinataFarranula gibbulaFarranula rostrataGaidius brevispinusLabidocera acutaLabidocera acutifronsLabidocera minutaMacrosetella gracilisMicrosetella roseaNannocalanus minorNeocalanus gracilisNeocalanus robustiorNeocalanus tenuicornis
Oithona similisOncaea minutaOncaea venustaParacalanus parvusPbaenna spiniferaPontellopsis armataPontellopsis laminataPontellopsis perspicaxPontellopsis strenuaPseudocalanus minutusScolecitbricella dentataScolecithrix danaeTemora discaudataTemora styliferaTortanus gracilisTortanus murrayiUndinula caroliUndinula vulgaris
5341. Lat. 10?57'51" N., long. 119?17'26" E.; off Palawan, Philippine Islands;December 23, 1908 ; surface ; 2 speciesParacalanus parvus Pseudocalanus minutus5342. Lat. 10?56'55" N, long. 119?17'24" E., off Palawan, Philippine Islands;December 23, 1908; surface; 14 speciesAcartia danaeAcrocalanus gracilisCalanopia thompsoniCandacia simplexEucalanus attenuatus
Euchaeta marinaLabidocera acutaLabidocera kr0yeriNeocalanus gracilisParacalanus parvus5346. Lat. 10?50'30" N., long. 119?22'20" E.; offDecember 26, 1908; surface;
Pseudocalanus minutusScolecitbricella bradyiTemora styliferaUndinula vulgaris
Palawan, Philippine Islands;2 speciesAcrocalanus gracilis Scolecithrix danae
t5348. Lat. 10?57'45" N, long. 118?38'15" E.; offDecember 27, 1908; surface;Acartia danae Calanopia ellipticaAcrocalanus gracilis Calanopia minorAcrocalanus longicornis Corycaeus agilis
Palawan, Philippine Islands;28 speciesCorycaeus longistylisCorycaeus pacificusCorycaeus speciosus
COPEPODS GATHERED BY ALBATROSS?WILSON 41515348. Lat. 10?57'45" N? long. ll'?38'15" E.; off Palawan, Philippine Islands;December 27, 1908; surface; 28 species?ContinuedEucalanus elongatusEucalanus monachusEuchaeta marinaParranula carinataFarranula concinnaFarranula gibbulaLabidocera acuta
Microsetella roseaOithona linearisOithona similisOncaea minutaOncaea venustaParaealanus parvusPontellopsis brevis
Sapphirina angustaSapphirina nigromaculataSapphirina opalinaTemora discaudataUndinula vulgaris
5349. Lat. 10?54' N, long. 118?26'20" E.; off Palawan, Philippine Islands;December 27, 1908; surface; 10 speciesAcartia negligensAcrocalanus gracilisCorycaeus agilisCorycaeus lautus
Farranula gibbulaMacrosetella gracilisOncaea minutaParaealanus parvus
Pseudocalanus minutusUndinula vulgaris
5357. Lat. 8?06' N., long. 117?17'10" E.; Balabac Strait, Philippine Islands;January 5, 1909; surface; 1 speciesCorycaeus crassiusculusf5358. Lat. 6?06'40" N., long. 118?18'15" E.; Jolo Sea, Philippine Islands;January 7, 1909; surface; 9 speciesCandacia simplexEucalanus monachusEuchaeta marina Labidocera acutifronsMacrosetella gracilisParaealanus parvus Rbincalanus cornutusTemora styliferaUndinula vulgaris5381. Lat. 13?14'15" N., long. 122?44'45" E.; Ragay Gulf, Luzon, PhilippineIslands; March 6, 1909; 88-0 fathoms; 3 speciesParaealanus parvus Pseudocalanus minutus Temora longicornis5382. Lat. 13?15'20" N., long. 122?45'30" E.; Ragay Gulf, Luzon, PhilippineIslands; March 6, 1909; 10 feet to surface; 24 speciesAcrocalanus gibberAcrocalanus gracilisCandacia aetbiopicaCandacia simplexCentropages furcatusChiridius gracilisCorycaeus agilisCorycaeus ovalis
Corycaeus speciosusFarranula carinataFarranula gibbulaFarranula rostrataGaidius brevispinusLabidocera acutaNannocalanus minorNeocalanus gracilis
Oncaea minutaOncaea venustaParoithona parvulaPontellina plumataPontellopsis arin.it aTemora longicornisTemora styliferaUndinula vulgarisf5386. Lat. 15?38'30" N, long. 122?44'30" E.; March 9, 1909; 10 feet to surface;33 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisAcrocalanus monacbusCentropages furcatusCorycaeus agilis
Corycaeus latusCorycaeus ovalisCorycaeus speciosusEucalanus bungiiEucalanus elongatusEucalanus mucronatus
Farranula carinataFarranula concinnaFarranula gibbulaFarranula rostrataLabidocera acutaLabidocera minuta
416 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM
t5386. Lat. 15?3S'30" N., long. 122?44'30" E.; March 9, 1909; 10 feet to surface;33 species?ContinuedMacrosetella gracilisMicrosetella roseaMiracia efferataNannocalanus minorNeocalanus gracilis
Neocalanus rotmstiorOncaea minutaOncaea venustaParacalanus parvusSapphirina auronitens
Sapphirina salpaeTemora styliferaUndinula caroliUndinula darwiniiUndinula vulgaris5387. Lat. 12?54'40" N., long. 123?20'30" E.; between Burias and Luzon, PhilippineIslands; March 11, 1909; surface; 14 speciesAcrocalanus gibberAcrocalanus gracilisCalanopia minorCandacia aethiopicaCentropages furcatns
Corycaeus agilisCorycaeus speciosusFarranula carinataFarranula gibbulaOithona similis
Oncaea minutaParacalanus parvusUndinula darwiniiUndinula vulgaris
t53S8. Lat. 12?51'50" N., long. 123?26'15" E.; March 11, 1909; 15 feet to surface;5 speciesCorycaeus agilisCorycaeus latus Corycaeus pumilusFarranula concinna Nannocalanus minor5395. Lat. 11?56'40" N., long. 124? 14' E.; between Samar and Masbate, PhilippineIslands; March 15, 1909; surface; 1 speciesAcrocalanus gracilis5396. Lat. 11?57' N., long. 124?12'24" E.; between Samar and Masbate, PhilippineIslands; March 15, 1909; surface; 7 speciesClausocalanus arcuicornis Euchaeta spinosaEucalanus attenuatus Nannocalanus minorEuchaeta marina Undinula caroli Undinula vulgaris5397. Lat. 11?57'27" N., long. 124?10'42" E.; between Samar and Masbate, Philip-pine Islands; March 15, 1909; surface; 11 speciesCorycaeus agilisEucalanus monachusEucalanus mucronatusEuchaeta marina
Euchaeta spinosaNannocalanus minorNeocalanus gracilisOncaea minuta
Paracalanus parvusUndinula caroliUndinula vulgaris
5399. Lat. 11?21'45' N., long. 124 ?05' E.; north of Cebu, Philippine Islands;March 16, 1909; surface; 30 speciesAcartia danaeAcartia longiremisAcrocalanus gibberAcrocalanus gracilisAcrocalanus monachusCalocalanus pavoCandacia armataCandacia simplexCentropages furcatusClausocalanus furcatus
Clytemnestra scutellataCorycaeus latusCorycaeus pacificusEucalanus attenuatusFarranula carinataFarranula gibbulaFarranula rostrataMacrosetella gracilisMicrosetella roseaNeocalanus robustior
Neocalanus tenuicornisOithona linearisOncaea minutaOncaea venustaParacalanus aculeatusPseudocalanus minutusScolecithricella bradyiTemora discaudataTemora styliferaUndinula caroli
COPEPODS GATHERED BY ALBATROSS?WILSON 4175404. Lat. 10? 50' N., long. 124?26'18" E.; Dupon Bay, Leyte, Philippine Islands;March 17, 1909; surface; 1 speciesEucalanus monachus
5410. Lat. 10?28'45" N, long. 124?05'30" E.; between Cebu and Leyte, PhilippineIslands; March 18, 1909; surface; 8 speciesAcartia negligensAcrocalanus gracilisNannocalanus minor Oncaea niinutaParacalanus parvusScolecithrix danae Tortanus gracilisTortanus murrayi5411. Lat. 10?10'30" N., long. 123?51'15" E.; between Cebu and Bohol, PhilippineIslands; March 23, 1909; surface; 8 speciesAcartia negligensAcrocalanus gracilisNannocalanus minor Oncaea minutaParacalanus parvusScolecithrix danae Tortanus gracilisTortanus murrayi5412. Lat. 10?09'15" N., long. 123?52' E.; between Cebu and Bohol, PhilippineIslands; March 23, 1909; surface; 10 speciesAcrocalanus gibberCandacia armataCandacia simplexCorycaeus lautus
Oncaea venustaParacalanus aculeatusPseudocalanus minutusScolecithricella bradyi
Undinula caroliUndinula vulgaris
f5413. Lat. 10?10'35" N., long. 124?03'15" E.; between Cebu and Bohol, PhilippineIslands; March 24, 1909; 15 feet to surface; 1 speciesAcrocalanus gibber
5414. Lat. 10?10'40" N., long. 124?02'45" E.; between Cebu and Bohol, PhilippineIslands; March 24, 1909; surface; 6 speciesCandacia simplexEucalanus monachus Mucrosetella gracilisNannocalanus minor Neocalanus gracilisPseudocalanus minutus
5415. Lat. 10?07'50" N., long. 123?57' E.; between Cebu and Bohol, PhilippineIslands; March 24, 1909; 88-0 fathoms; 38 speciesAcartia danaeAcartia longiremisAcrocalanus gracilisAcrocalanus longicornisCalanopia aurivilliiCandacia simplexCentropages furcatusCopilia quadrataCorycaeus longistylisCorycaeus ovalisCorycaeus speciosusEucalanus attenuatusEucalanus monachus
Farranula gibbulaFarranula rostrataLabidocera acutaLabidocera euchaetaLabidocera tenuicaudaLucicutia longicornisNannocalanus minorNeocalanus gracilisNeocalanus tenuicornisOithona similisOncaea minutaOncaea venustaParacalanus parvus
Pontella feraPontella tenuireuiisPontellina plumataPseudocalanus minutusSapphirina angustaSapphirina auronitensScolecithricella bradyiScolecithrix danaeTemora longicornisTortanus recticaudaUndinula caroliUndinula vulgaris
418 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
t5422. Lat. 10?31' N, long. 122?18'45" E.; between Panay and Guimaras, Philip-pine Islands; March 30, 1909; surface; 42 speciesAcartia danaeAcrocalanus gracilisCalanopia ellipticaCandacia simplexCandacia turgidaCanthocalanus pauperCopilia mirabilisCopilia quadrataCorycaeus agilisCorycaeus catusCorycaeus speciosusEucalanus attenuatusEuealanus crassusEucalanus elongatusEucalanus niucronatus
Euchaeta acutaEuchaeta marinaEuchaeta spinosaEuchirella brevisFarranula gibbulaHaloptilus spinicepsHeterorhabdus papilligerLabidocera minutaLubbockia squillimanaLucicutia flavicornisMacrosetella gracilisMetridia longaNeocalanus gracilisNeocalanus robustiorNeocalanus tenuicornis
Pleuromamma abdomi-nalisPleuromamma gracilisPleuromamma xiphiasPontellopsis armataRhincalanus cornutusSapphirina angustaSapphirina metallinaScolecithricella bradyiScolecithrix danaeTemora styliferaUndinula earoliUndinula Tulgaris
5423. Lat. 9?38'30" N? long. 121? 11' E.; Jolo Sea, Philippine Islands; March 31,1909; [between 508-0 fathoms; surface ?] ; 2 speciesParacalanus parvus Pseudocalanus minutus5424. Lat. 9?37'05" K, long. 121?12'37" E.; Jolo Sea, Philippine Islands; March 31,1909; between 340-0 fathoms; 26 speciesAcrocalanus gibberAcrocalanus longicornisCandacia simplexCentropages furcatusCentropages violaceusClausocalanus arcuicornisCorycaeus agilisCorycaeus catusCorycaeus limbatus
Corycaeus longistylisCorycaeus oval isCorycaeus pumilusEucalanus attenuatusFarranula rostrataMacrosetella gracilisNanuocalanus minorOncaea coniferaParacalanus parvus
Pleuromamma gracilisPseudocalanus minutusSapphirina auronitensSapphirina nigromaculataTemora discaudataTeinora longicornisTemora styliferaUndinula vulgaris
5425. Lat. 9?37'45' N., long. 121?1P E. Jolo Sea, Philippine Islands; March 31,1909; [surface?]; 1 speciesCorycaeus catus5430. Lat. 9?49'40" N? long. 119?03'20" E.; vicinity eastern Palawan, PhilippineIslands ; April 6, 1909 ; surface ; 9 speciesCandacia norvegicaCorycaeus agilisFarranula gibbula Farranula rostrata Microsetella roseaMacrosetella gracilis Oncaea minutaMicrosetella norvegica Scolecithrix danae5431. Lat. 10?38'45" N., long. 120?12'45" E.; vicinity eastern Palawan, PhilippineIslands; April 8, 1909; [surface?] ; 1 speciesMacrosetella gracilis
COPEPODS GATHERED BY ALBATROSS?WILSON 4195434. Lat. 10?46'45" N., long. 120?22'45" E.; vicinity eastern Palawan, Philippi,Islands; April 8, 1909; surface; 26 speciesAcrocalanus gibberAcrocalanus gracilisCalanopia ellipticaCalanopia minorCandacia bispinosaCandacia simplexCentropages furcatusCorycaeus latusCorycaeus limbatus
Corycaeus longistylisCorycaeus speciosusEucalanus attenuatusEucalanus elongatusEucbaeta marinaFarranula carinataLabidocera acutaOncaea similisOncaea venusta
Pleuromamma gracilisPseudocalanus minutusSapphirina aurouitensTemora discaudataTemora longicornisTemora styliferaUndinula caroliUndinula vulgaris
5436. Lat. 14?22'37" N., long. 120?29' E.; west of Luzon, Philippine Islands;May 7, 1909; surface; 3 speciesCopilia mirabilis Eucalanus monacbus Eucalanus mucronatus5437. Lat. 15?45'54" N., long. 119?42'45" E.; west coast of Luzon, PhilippineIslands; May 8, 1909; 600-0 fathoms; 82 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisAcrocalanus longicornisAcrocalanus monachusAegistbus spinulosusAetideus armatusAmallothrix falciferCandacia simplexCentropages fui'catusCentropages violaceusClausocalanus arcuicornisCopilia mirabilisCorycaeus agilisCorycaeus flaccusCorycaeus latusCorycaeus lautusCorycaeus longistylisCorycaeus lubbockiiCorycaeus ovalisDisseta maximaEucalanus attenuatusEucalanus elongatusEucbaeta marinaEuchirella messinensisEuchirella rostrataFarranula carinataFarranula gibbulaFarranula rostrata
Gaetanus latifronsHaloptilus longicornisHaloptilus ornatusHeterorbabdus papilligerHeterorbabdus spinifrons?Lubbockia brevisLubbockia squillimanaLucicutia atlanticaLucicutia flavicornisLucicutia ovalisLucicutia simulansLucicutia tenuicaudaMacrosetella gracilisMecynocera clausiMegacalanus princepsMetridia venustaMicrosetella norvegicaMicrosetella roseaMiracia efferataMonacilla typicaMormonilla phasmaNannocalanus minorNeocalanus gracilisNeocalanus robustiorNeocalanus tenuicornisOithona linearisOithona similisOithona spinirostrisOncaea conifera
Oncaea minutaOncaea venustaI'aracalanus aculeatusParacalanus parvusParoithona parvulaPbaenna spinifera1'hyllopus aequalisPleuromamma abdomi-nalisPleuromamma gracilisPleuromamma quad-rungulataPleuromamma robustaPleuromamma xiphiasPseudocalanus minutusRbincalanus cornutusSapphirina auronitensSapphirina niirromaculataScolecithricella auro-pectenScolecithricella bradyiScottoealanus setosusScottocalanus thomasiTemora longicornisUndeuchaeta majurUndeuchaeta plumosaUndinula caroli
843804?50- 1!)
420 BULLETIN 100, UNITED STATES NATIONAL MUSEUM5451. Lat. 13?22'22" N., long. 124?00'48" E.; off Bataan, Philippine Islands; June5, 1909; 280-0 fathoms; 16 speciesArietellus armatus Lophothrix frontalis Pleuromamma xiphiasArietellus setosus Lophothrix humilifrons Rhincalanus cornutusEuaugaptilus hecticus Lucicutia tenuicauda Scottocalanus thomasiEucalanus attenuatus Pleuromamma abdomi- Undeuchaeta majorEuchaeta marina nalis Undeuchaeta plumosaEuchaeta spinosa Pleuromamma gracilis5456. Lat. 13?11'10" N., long. 123?51'52" E.; east coast Luzon, Philippine Islands;June 7, 1909; 120 fathoms; 1 speciesSapphirina opalina5457. Lat. 13? 12' N., long. 123?49'40" E.; off Bataan, Philippine Islands; June 8,1909; 146-0 fathoms; 1 speciesArietellus giesbrechti5460. Lat. 13?32'30" N., long. 123?58'06" E.; off eastern Luzon, Philippine Islands;June 10, 1909; [surface?]; 4 speciesAcartia danae Labidocera acutifronsCaligus latifrons Pontella valida5484. Lat. 10?28' N? long. 125?20' E.; between Samar and Leyte, PhilippineIslands; July 30, 1909; 76-0 fathoms; 1 speciesCorycaeus speciosus5488. Lat. 10? 00' N., long. 125?06'45" E.; between Leyte and Mindanao, PhilippineIslands; July 31, 1909; 10-0 feet; 10 speciesAcrocalanus monachus Macrosetella gracilis Temora longicornisCopilia quadrata Oncaea minuta Temora styliferaEucalanus monachus Sapphirina salpaeLabidocera acuta Sapphirina scarlataf5489. Lat. 9?50'30" N, long. 125?10' E.; between Leyte and Mindanao, PhilippineIslands; July 31, 1909; surface; 18 speciesAcartia danae Eucalanus monachus Paracalanus parvusCalanopia minor Euchaeta marina Pareuchaeta tonsaCandacia longimana Heterorhabdus papilliger Rhincalanus nasutusCopilia quadrata Labidocera acutifrons Temora discaudataCorycaeus longistylis Labidocera minuta Temora styliferaEucalanus attenuatus Macrosetella gracilis Undinula vulgaris5495. Lat. 9?06'30" N., long. 125?00'20" E.; between Leyte and Mindanao, Philip-pine Islands; August 2, 1909; 600-0 fathoms; 3 speciesHeterorhabdus clausii Megacalanus longicornis Oncaea conifera15507. Lat. 8?21'12" N., long. 124?12'06" E.; off northern Mindanao, PhilippineIslands; August 5, 1909; 10 feet to surface; 11 speciesAcrocalanus gracilis Farranula gibbula Undinula caroliCorycaeus pumilus Oncaea minuta Undinula darwiniiCorycaeus speciosus Oncaea venusta Undinula vulgarisEucalanus monachus Pseudocalanus minutus
COPEPODS GATHERED BY ALBATROSS?WILSON 4215530. Lat. 9?26'45" N? long. 123?38'30" E.; between Siquijor and Bohol, PhilippineIslands; August 11, 1909; surface; 31 speciesAcartia danaeAcartia longiremisCalanopia aurivilliiCandacia simplexCopilia quadrataCorycaeus agilisCorycaeus latusCorycaeus lautusCorycaeus longistylisCorycaeus speciosusEucalanus monachus
Farranula gibbulaFarranula rostrataLabidocera acutaLabidocera acutifronsLabidocera detruucataLabidocera lubbockii?Lubbockia brevisLubbockia squillimanaLucicutia flavicornisMacrosetella gracilisNannocalanus minor
Neocalanus gracilisOncaea minutaOncaea venustaPontellina plumataPseudocalanus minutusSapphirina auronitensSappbirina nigromaculataTemora styliferaUndinula vulgaris
5538. Lat. 9?08'15" N., long. 128?23'20" E.; between Negros and Siquijor, Philip-pine Islands; August 19, 1909; [surface?]; 1 speciesCorycaeus agilis5553. Lat. 5? 51' N., long. 120?46'30" E.; off Jolo, Philippine Islands; September 17,1909; surface; 31 speciesCalanopia ellipticaCandacia aethiopicaCandacia simplexCanthocalanus pauperCopilia mirabilisCopilia quadrataCorycaeus agilisEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus mucronatus
Euchirella curticaudaLabidocera acutaLabidocera kr0yeriLabidocera minutaMacandrewella sewelliMegacalanus longicornisNannocalanus minorOncaea venustaPareuchaeta gracilisPhaenna spiniferaPontella diagonalis
Khincalanus cornutusSappbirina longifurcaSapphirina metallinaScolecithricella auropec-tenScolecithricella bradyiScolecithrix danaeTemora discaudataTemora styliferaUndinula vulgaris
5578. Lat. 5?14'38" N., long. 119?57'57" E.; north of Tawi Tawi, PhilippineIslands ; September 23, 1909 ; surface ; 14 speciesCalanopia minorCandacia aethiopicaCandacia simplexCorycaeus speciosusEucalanus mucronatus
Euchaeta marinaEuchaeta spinosaHaloptilus ornatusPareuchaeta gracilisPareuchaeta incisa
Pareuchaeta norvegicaPhaenna spiniferaSapphirina longifurcaUndinula vulgaris
5595. Lat. 6?54' N., long. 122?04'30" E.; off Mindanao, Philippine Islands;October 6, 1909; surface; 5 speciesEucalanus attenuatusEucalanus crassus Undeuchaeta majorUndeuchaeta plumosa Undinula vulgaris5596. Lat. 6?54' N., long. 122?04'30" E.; off Mindanao, Philippine Islands; Octo-ber 10, 1909; surface; 1 speciesUndinula vulgaris
422 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
t5601. Lat. 1?13'10" N., long. 125?17'05" E.; Gulf of Tomini, Celebes; November13, 1909; just below surface; 20 speciesAcartia danae Eucalanus nionacbus Oncaea minutaAcartia longiremis Farranula rostrata Paracalanus parvusCalanopla aurivillii Labidocera acutifrons Pontella feraCandacia bipinnata Macrosetella gracilis Sapphirina auronitensCorycaeus latus Microsetella norvegica Ternora styliferaCorycaeus lautus Microsetella rosea Undinula caroliEucalanus attenuatus Neocalanus gracilis5611. Lat. 00?40'30" S., long. 121?50' E.; Gulf of Tomini, Celebes; November19, 1909; surface; 11 speciesCandacia simplex Eucalanus attenuatus Labidocera acutaCentropages calaninus Eucalanus crassus Rhincalanus cornutusCopilia mirabilis Eucalanus mucronatus Rhincalanus nasutusCopilia quadrata Euchaeta marina5627. Lat. 00? 06' N., long. 127 ?26' E.; off Kayoa Island, Philippine Islands; No-vember 29, 1909; 5-0 fathoms; 2 speciesCopilia quadrata Euchaeta marina5633. Lat. 1?03' S., long. 127?44' E.; south of Patiente Strait; December 2, 1909;surface; 8 speciesCandacia simplex Eucalanus subcrassus Pleuromamma xiphiasCopilia mirabilis Euchirella intermedia Undinula vulgarisEucalanus attenuatus Pareucbaeta bisinuata5640. Lat. 4?27' S., long. 122?55'40" E.; Buton Strait; December 13, 1909; surface;2 speciesCopilia mirabilis Sapphirina longifurca5646. Lat. 5?31'30" S., long. 122?22'40" E.; Buton Strait; December 16, 1909;456-0 fathoms; 15 speciesAcrocalanus gracilis Farranula gibbula Sappbirina angustaAcrocalanus longicornis Macrosetella gracilis Temora discaudataCandacia aetbiopica Nannocalanus minor Temora styliferaCorycaeus longistylis Oncaea minuta Undinula caroliFarranula concinna Oncaea venusta Undinula vulgaris15647. Lat. 5?34' S., long. 122?18'15" E.; Buton Strait; December 16, 1909; belowsurface; 10 speciesAcartia danae Macrosetella gracilis Paracalanus parvusAcrocalanus gracilis Microsetella rosea Temora discaudataEucalanus monachus Nannocalanus minorFarranula gibbula Neocalanus gracilis
COPEPODS GATHERED BY ALBATROSS?WILSON 423t5651. Lat. 4?43'50" S., long. 121?23'24" E.; Gulf of Boni, Celebes; December 17,1909; surface; 28 speciesAcartia danae Corycaeus longistylis Oncaea minutaAcrocalanus gibber Corycaeus ovalis Oncaea venustaAcrocalanus gracilis Corycaeus pacificus Paracalanus parvusAcrocalanus longicornis Eucalanus monachus Pseudocalanus minutusCalocalanus pavo Farranula carinata Temora discaudataCalocalanus stylireinis Farranula gibbula Temora longicornisCentropages furcatus Macrosetella gracilis Temora styliferaCliiridius armatus Microsetella rosea Undinula vulgarisClausocalanus arcuicornis Nannocalanus minorCorycaeus latus Oithona similis5653. Lat. 4?27'36" S., long. 121?16'36" E.; Gulf of Boni, Celebes; December 17,1909; surface; 3 speciesAcrocalanus gracilis Corycaeus ovalis Farranula carinata5655. Lat. 3?34'10" S., long. 120?50'30" E.; Gulf of Boni, Celebes; December 18,1909; surface; 1 speciesCalanus finrnarchicus5657. Lat. 3?19'40" S? long. 120?38'30" E.; Gulf of Boni, Celebes; December 19,1909; surface; 1 speciesMicrosetella rosea5661. Lat.5?49'40" S., long. 120?24'30" E.; Flores Sea, Celebes; December 20, 1909;surface; 1 speciesTemora discaudata5672. Lat. 00?29' S., long. 118 ?51' E.; Macassar Strait, Celebes; December 30,1909; surface; 3 speciesEucalanus attenuatus Labidocera acuta Temora stylifera
E. HYDROGRAPHIC STATIONS, 1889 AND 1891
?
(With Corresponding 1891 [Pacific] Cable Survey Stations in Parentheses)1689. Lat. 32?39'30'/ N., long. 119?07'45" W.; off west coast United States;January 24, 1889; surface; 3 speciesCalanus cristatus Calanus finrnarchicus Eucalanus mucronatus1888. Lat. 45?01' N? long. 124?35' W.; off coast of Oregon; August 30, 18S9;surface; 1 speciesAcartia longiremis
"Tanner Z L, Report of the results of the survey for the purpose of determining thepracticability of laying a telegraphic cable between the United States and the HawaiianIslands, Senate Doc. 153, 52d Cong., 1st Sess., 26 pp., 4 photos, 9 charts 1892 : Co?nsend,C. H., Dredging and other records of the United States Fish Commissi,,,, Steamer ^atroej,with bibliography relative to the work of the vessel, U. S. Fish Comm. Rep. lor 1900, pp. 1 12.445, 456-461, 480, 1001.
424 BULLETIN 100, UNITED STATES NATIONAL MUSEUM2700. Lat. 35?37' N., long. 128?41' W.; California to Hawaii; October 13, 1891;surface; 8 speciesCalanus cristatus Eucalanus elongatus Neocalanus gracilisCalanus hyperboreus Eucalanus mucronatus Pareuchaeta norvegicaEucalanus attenuatus Metridia longa2701. Lat. 35?33' N., long. 126?59'30" W.; California to Hawaii; October 13, 1891;surface; 3 speciesCalanus finmarcbicus Eucalanus attenuatus Eucalanus mucronatus2718 (64). Lat. 33?54'30" N., long. 131 ?45' W.; California to Hawaii; October 15,1891; surface; 28 speciesAcartia danaeCalocalanus pavoCanthocalanus pauperCentropages calaninusClausocalanus furcatusCorycaeus agilisCorycaeus flaccusCorycaeus robustusCorycaeus speciosusFarranula carinata
Farranula gibbulaFarranula gracilisFarranula rostrataLucicutia flavicornisMacrosetella gracilisMecynocera clausiMicrosetella norvegicaMicrosetella roseaNeocalanus gracilisOithona linearis
Oitbona similisParacalanus parvusPseudocalanus minutusRhincalanus nasutusSapphirina auronitensScolecithrix danaeUndinula caroliUndinula darwinii
2719 (65). Lat. 33?48'30" N., long. 132?01' W.; California to Hawaii; October 15,1891; surface; 58 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisAetideus armatusCalocalanus pavoCalocalanus styliremisCandacia aethiopicaCandacia bipinnataCandacia bispinosaCandacia simplexCentropages calaninusCentropages violaceusClausocalanus arcuicornisClausocalanus furcatusCorycaeus agilisCorycaeus crassiusculusCorycaeus flaccusCorycaeus limbatusCorycaeus longistylisCorycaeus lubbockii
Corycaeus ovalisCorycaeus pacificusCorycaeus speciosusEucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus monacbusEuchaeta marinaFarranula carinataFarranula gibbulaFarranula gracilisFarranula rostrataHeterorhabdus papilligerHeterorhabdus spinifronsLubbockia squillimanaLucicutia flavicornisMacrosetella gracilisMecynocera clausiMegacalanus longicornisMicrosetella rosea
Neocalanus gracilisOithona spinirostrisOncaea coniferaOncaea minutaOncaea similisOncaea venustaParacalanus aculeatusParacalanus parvusPhaenna spiniferaPleuromamma abdomi-nalisPleuromamma gracilisPontellina plumataRhincalanus nasutusSapphirina auronitensScolecithrix danaeTemora discaudataUndinula caroliUndinula darwinii
2720 (66). Lat. 33?41'30" N., long. 134?17' W.; California to Hawaii; October 16,1891; surface; 38 speciesAcartia danaeAcartia negligensAcrocalanus gibberAcrocalanus gracilis
Calocalanus pavoCandacia simplexCentropages calaninusClausocalanus arcuicornis
Copilia denticulataCorycaeus agilisCorycaeus flaccusCorycaeus lautus
COPEPODS GATHERED BY ALBATROSS?WILSON 4252720 (66).CorycaeusCorycaeusCorycaeusCorycaeusCorycaeusEucalanusEucalanusEucalanusFarranula
Lat. 33?41'30'1891longistylispumilusrobustusspeciosustypicuselongatusmonachusmucronatuscarinata
N., long. 134?17' W., California to Hawaii; October 16,surface; 38 species?ContinuedFarranula gibbulaFarranula gracilisFarranula rostrataMetridia lucensMicrosetella roseaNeocalanus gracilisOithona similisOncaea minutaOncaea notopa
Oncaea venustaParacalanus parvusPleuromamma gracilisPseudocalanus minutusRhincalanus cornutusSapphirina auronitensTemora discaudataUndimila darwinii
2721 (67). Lat. 33?35' N., long. 132?33'30" W.; California to Hawaii; October 16,1891; surface; 23 speciesAcartia danaeAcrocalanus gracilisAetideus armatusCalocalanus pavoCentropages calaninusCorycaeus longistylisEucalanus attenuatusEucalanus monachus2722 (68). Lat. 33?28'30'Corycaeus agilisCorycaeus ovalisFarranula gracilis
Farranula carinataFarranula gracilisFarranula rostrataLucicutia flavicornisMetridia lucensMicrosetella norvegicaMicrosetella roseaNeocalanus gracilis
Oithona linearisOithona similisOithona spinirostrisOncaea notopaOncaea venustaPleuromamma gracilisUndinula darwinii
N., long. 132?50' W.; California to Hawaii; October 16,1891; surface; 9 speciesFarranula rostrataMicrosetella roseaOncaea venusta Paracalanus parvusPseudocalanus minutusUndinula darwinii2723 (69). Lat. 33?24' N., long. 133?01' W.; California to Hawaii; October 16, 1891;surface; 1 speciesNeocalanus gracilis2724 (70). Lat. 33?20' N.,long. 133?12' W.; California to Hawaii; October 16, 1891;
Acartia clausiiAcartia danaeAcartia negligensClausocalanus furcatusCorycaeus agilisCorycaeus crassiusculusCorycaeus limbatusCorycaeus ovalisCorycaeus speciosus
surface; 27 speciesCorycaeus typicusEucalanus elongatusEuchaeta marinaFarranula carinataFarranula gibbulaFarranula gracilisFarranula rostrataLubbockia aculeataMetridia lucens
Microsetella norvegicaOncaea minutaOncaea venustaParacalanus parvusPseudocalanus minutusSapnhirina auronitensTemora discaudataTemora styliferaUndinula darwinii2725 (71). Lat. 33?15'30" N., long. 133?24' W.; California to Hawaii; October 16,
Acartia danaeAcartia negligensAcrocalanus gibberAcrocalanus gracilisAetideus armatusAmallothrix emarginataCalocalanus pavoCandacia simplex
1891; surface; 47 speciesCentropages calaninusClausocalanus furcatusClytemnestra scutellataCorycaeus agilisCorycaeus catnsCorycaeus limbatusCorycaeus ovalisCorycaeus pumilus
Corycaeus typicusEucalanus elongatusEucalanus monachusEucalanus mucronatusEuchaeta acutaEuchaeta marinaFarranula carinataFarranula gibbula
426 BULLETIN 100, UNITED STATES NATIONAL MUSEUM2725 (71). Lat. 33?15'30" N., long. 133 ?24' W.; California to Hawaii; October 16,1891; surface; 47 species?ContinuedFarranula gracilisFarranula rostrataHeterorhabdus spinifronsLucicutia flavicornisMacrosetella gracilisMicrosetella roseaNannocalanus minorOncaea minuta
Oncaea notopaOncaea similisOncaea venustaParacalanus parvusPhaenna spiniferaPseudocalanus minutusSapphirina auronitensSappbirina intestinata
Scolecitbrix danaeTemora discaudataTemora longicornisTemora sty1 iferaUndinula caroliUndinula darwiniiUndinula vulgaris
2727 (73). Lat. 33?08' N., long. 133?46' W.; California to Hawaii; October 16, 1891;surface; 22 speciesAcartia danaeAcrocalanus gracilisAmallothrix emarginataAugaptilus glacialisCentropages calaninusCorycaeus catusEucalanus monacbusFarranula carinata
Farranula gibbulaFarranula rostrataMacrosetella gracilisMicrosetella roseaOithona similisOncaea coniferaOncaea minutaOncaea notopa
Oncaea similisParacalanus parvusPseudocalanus minutusSapphirina auronitensTemora discaudataUndinula vulgaris
2728 (74). Lat. 33?04'30" N, long. 133?56'30" W.; California to Hawaii; October16, 1891; surface; 1 speciesUndeuchaeta plumosa2729 (75). Lat. 33?01' N., long. 134?08' W.; California to Hawaii; October 16,1891; surface; 34 speciesAcartia longiremisAmallothrix emarginataCentropages furcatusCentropages violaceusClausocalanus areuicornisClausocalanus furcatusCorycaeus agilisCorycaeus crassiusculusCorycaeus dubiusCorycaeus flaccusCorycaeus lautusCorycaeus speciosus
Corycaeus typicusEucalanus attenuatusEucalanus monachusEuchaeta marinaFarranula gracilisFarranula rostrataHeterorhabdus papilligerMecynocera clausiMicrosetella roseaOithona plumiferaOithona similisOncaea minuta
Oncaea notopaOncaea venustaParacalanus parvusPhaenna spiniferaRhincalanus cornutusRhincalanus nasutusScolecithrix danaeUndinula caroliUndinula darwiniiUndinula vulgaris
2730 (76). Lat. 32?57'30" N? long. 134?18'30" W.; California to Hawaii; October16, 1891; surface; 30 speciesAcartia negligensCandacia bipinnataCandacia bispinosaCentropages furcatusCopilia denticulataCorycaeus speciosusCorycaeus typicusEucalanus attentuatusEucalanus elongatusEucalanus monachus
Euchaeta acutaEuchaeta marinaEuchirella brevisFarranula rostrataGaetanus recticornisLucicutia longicornisMecynocera clausiMicrosetella roseaOithona plumiferaOithona similis
Oncaea minutaOncaea venustaPareuchaeta tonsaPseudocalanus minutusRhincalanus nasutusScolecithrix danaeSpinocalanus abyssalisUndinula caroliUndinula darwiniiUndinula vulgaris
COPEPODS GATHERED BY ALBATROSS?WILSON 4272731 (77). Lat. 32?54' N? long. 134?30' W.; Californiasurface; 27 speciesAcartia danaeAcartia negligensCandacia bispinosaCentropages furcatusClausocalanus arcuicornisCorycaeus speciosusEucalanus elongatusEucalanus monachusEuchaeta acuta
Euchaeta marinaMicrosetella roseaNannocalanus minorOncaea venustaPareuchaeta incisaPareuchaeta tonsaPhaenna spiniferaPleuromamma gracilisRhincalanus nasutus
to Hawaii; October 17, 1891;Sapphirina angustaSapphirina auronitensScolecithricella bradyiScolecithrix danaeTemora discaudataTemora styliferaUndinula caroliUndinula darwinilUndinula vulgaris2732 (78). Lat. 32?50' N., long. 134?40'30" W.; California to Hawaii; October 17,Eucalanus attenuatusEucalanus crassusEucalanus elongatusEucalanus monachusEuchaeta acutaEuchaeta marinaLucicutia flavicornis
1891; surface; 19 speciesOncaea venustaPareuchaeta tonsaRhincalanus nasutusSapphirina auronitensSapphirina lactensScolecithricella bradyiScolecithrix danae
Temora discaudataTemora styliferaUndinula caroliUndinula darwiniiUndinula vulgaris
2733 (79). Lat. 32?46'30" N., long. 134?52' W.; California to Hawaii; October 17,1891; surface; 15 speciesCentropages calaninusCentropages furcatusClausocalanus arcuicornisEucalanus monachusFarranula carinata
Farranula rostrataMecynocera clausiMicrosetella roseaNannocalanus minorOncaea venusta
Paracalanus parvusPleuromamma gracilisScolecithrix danaeTemora discaudataUndinula vulgaris2734 (80). Lat. 32?46' N., long. 134?54' W.; California to Hawaii; October 17, 1891;
Acrocalanus gracilisCalanus tonsusCentropages calaninusCentropages furcatusCopilia denticulataCorycaeus agilisCorycaeus catusCorycaeus speciosus
surface; 23 speciesEucalanus elongatusEucalanus monachusEuchaeta marinaFarranula carinataFarranula gibbulaFarranula gracilisFarranula rostrataHeterorhabdus spinifrons
Microsetella roseaOncaea venustaPareuchaeta tonsaScolecithrix danaeTemora styliferaUndinula darwiniiUndinula vulgaris
2735 (81). Lat. 32?44'40" N., long. 134?58' W.; California to Hawaii; October 17,1891; surface; 8 speciesCentropages furcatus Oncaea minuta Scolecithrix danaeCentropages violaceus Paracalanus aculeatus Temora styliferaClausocalanus arcuicornis Paracalanus parvus2736 (82). Lat. 32?44' N.
Centropages calaninusClausocalanus arcuicornisClytemnestra rostrataCorycaeus agilis
long. 135?00' W.; California to Hawaii; October 17,1891; surface; 12 speciesCorycaeus dubiusFarranula carinataFarranula rostrataMicrosetella rosea
Oncaea venustaParacalanus parvusScolecithrix danaeUndinula darwinii
428 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM2794 (139). Lat. 32?12'30" N., long. 136?00'30" W.; California to Hawaii;November 9, 1891 ; surface ; 1 speciesPontella atlantica2828 (173). Lat. 29?43' N? long. 142?04'30" W.; California to Hawaii; November12, 1891; surface; 4 speciesCandacia simplex Lucicutia flavicornis Pontella feraEuchaeta marina2877 (222). Lat. 25?14' N, long. 150?39' W.; California to Hawaii; November 17,1891; surface; 4 speciesCandacia longimana Lucicutia flavicornis Pleuromamma xiphiasGaetanus armiger2878 (223). Lat. 25?08' N., long. 150?50' W.; California to Hawaii; November 17,1891; surface; 1 speciesPontella securifer2892 (236). Lat. 23?49' N., long. 153?20' W.; California to Hawaii; November 18,1891; surface; 8 speciesClausocalanus arcuicornis Neocalanus robustior Pontella danaeEuchaeta marina Pleuromamma abdomi- Pontella feraNeocalanus gracilis nalis Undinula darwinii3116 (470). Lat. 30?29' N., long. 136?51' W.; California to Hawaii; December 25,1891; surface; 8 speciesAcartia danae Heterorhabdus spinifrons Scolecithricella vittataEuaetideus giesbrechti Scolecithricella bradyi Undinula caroliHeterorhabdus norvegicus Scolecithricella dentata3120 (474). Lat. 30?38' N., long. 136?23' W.; California to Hawaii; December 26,1891; surface; 1 speciesGaidius pungens3782 [Agassiz Station 7]. Lat. 18?19' N., long. 134?57' W.; California to MarquesasIslands; September 1, 1899; surface; 1 speciesCentropages calaninus3786 [Agassiz Station 12]. Lat. 12?07' N., long. 137? 18' W.; California to Mar-quesas Islands; September 4, 18D9; surface; 1 speciesPontella danae3789 [Agassiz Station 16]. Lat. 02?38' N., long. 137?22' W.; California to Mar-quesas Islands ; September 9, 1899 ; 250-9 fathoms ; 7 speciesBathycalanus richardi Megacalanus longicornis Undeuchaeta plumosaDysgamus pacificus Pareuchaeta hanseniiGaetanus kruppii Pseudochirella obtnsa3798 [Agassiz Station 27]. Cape Martin, Nukuhiva Island, N. 30? E.; distance6'/2 miles; September 15, 1899; 300-0 fathoms; 1 speciesGaetanus antarcticus
COPEPODS GATHERED BY ALBATROSS?WILSON 429F. UNNUMBERED LOCALITIESOkhotsk SeaRobben Island ; surface ; 1 speciesPontella pulvinata AlaskaAmchitka Island; August, 1893; 2 speciesCalanus finmarchicus Eucalanus mucronatusAttu Island, collected by Victor Scheffer, June 10, 1937; 1 speciesAcartia tumida Behm Canal; August, 1893; 1 speciesCalanus finmarchicusKodiak Island, anchorage; August, 1893; 2 speciesAcartia longiremis Robertsonia tenuisRat Island, collected by Victor B. Scheffer, June 26, 1932; 1 speciesTigriopus incertus Yes Bay; 4 speciesCalanus finmarchicus Metridia lucens Pseudocalanus minutusGaidius tenuispinus British ColumbiaBeaver Harbor, Vancouver Island; September, 1888; 3 speciesAcartia longiremis Harpacticus chelifer Pontella tenuiremisPacific, Eastern TropicalCharles Island, Galapagos [1891 or 1904-5?]; surface; 12 speciesAcrocalanus gracilis Metridia longa Phaenna spiniferaCalanopia minor Nannocalanus minor Pseudocalanus minutusCentropages furcatus Neocalanus tenuicornis Teniora discaudataFarranula rostrata Oncaea venusta Temora styiiferaPacific, South and West
*ElIice Islands; Funafuti; December 23, 1899; surface; 5 speciesMacandrewella agassizi Pachyptilus abbreviatus Scolecithrix danaeMacandrewella chelipes Pontella tenuiremis
"Fiji Islands, off Mbatiki Island; surface; December 1897; 1 speciesMacrosetella gracilis
?Fiji Islands, east entrance Mhengha Passage; December 16, 1897; surface; IspeciesAcartia danae
430 BULLETIN 100, UNITED STATES NATIONAL MUSEUM
?Fiji Islands, off Kimbombo Island; December 1897; 40 fathoms; 1 speciesAcartia danae
*Fiji Islands, south of Suva Light; November 1897; surface; 71 speciesAcartia hamataAcartia negligensAcrocalanus gibberAcrocalanus gracilisAcrocalanus nionachusAetideus armatusCalanopia ellipticaCalanopia sarsiCalocalanus pavoCalocalanus styliremisCandacia aethiopicaCandacia simplexCanthocalanus pauperCentropages calaninusCentropages furcatusCentropages orsiniiCentropages violaceusClausocalanus arcuicornisConaea gracilisCopilia quadrataCorycaeus agilisCorycaeus catusCorycaeus clausiCorycaeus flaccus
Corycaeus limbatusCorycaeus longistylisCorycaeus ovalisCorycaeus speciosusCorycaeus typicusEuaetideus giesbrechtiEuaugaptilus elongatusEucalanus attenuatusEucalanus elongatusEucalanus muticusEuchaeta acutaEuchaeta longicornisEuchaeta marinaFarranula gibbulaFarranula gracilisFarranula rostrataHaloptilus longicornisHaloptilus spinicepsHeterorhabdus spinifronsLophothrix frontalisLubbockia squillimanaLucicutia flavicoi'nisMacandrewella chelipesMacrosetella gracilis
Mecynocera clausiNannocalanus minorNeocalanus gracilisNeocalanus robustiorNeocalanus tenuicornisOculosetella gracilisOithona plumiferaOithona similisOithona spinirostrisOithonina nanaOncaea minutaOncaea venustaPachyptilus abbreviatusParacalanus parvusPhaenna spiniferaPontellina plumataPseudocalanus minutusSapphirina auronitensScolecithricella vittataScolecithrix danaeTemora styliferaUndinula caroliUndinula vulgaris
*Fiji Islands, off Taviuni Island; November-December 1897; surface; 24 speciesAcartia danaeAcrocalanus gibberAcrocalanus gracilisCalocalanus pavoCandacia simplexCentropages hamatusCorycaeus agilisCorycaeus clausi
Corycaeus longistylisCorycaeus ovalisCorycaeus speciosusEuchaeta marinaFarranula gibbulaFarranula rostrataLubbockia squillimanaLucicutia flavicornis
Macrosetella gracilisNeocalanus gracilisNeocalanus robustiorOncaea minutaOncaea venustaPhaenna spiniferaSapphirina auronitensUndinula vulgarisFiji Islands, off Vatu Leile; surface; December 1897; 7 speciesAcrocalanus monachus Corycaeus agilisCalocalanus pavo Corycaeus typicusCopilia quadrata Macrosetella gracilisNeocalanus gracilisFriendly [Tonga] Islands; [1899?] surface; 1 speciesFarranula rostrata
*Gilbert Islands; Butaritari Lagoon, Makin Island; January 6, 1900; surface;16 speciesAcartia danaeAcartia hamata Calanopia ellipticaCopilia denticulata Copilia vitreaCorycaeus speciosus
COPEPODS GATHERED BY ALBATROSS?WILSON 431Gilbert Islands; Butaritari Lagoon, Makin Island; January 6, 1900; surface;16 species?ContinuedGaidius affinisMonstrilla serricornisSapphirina auronitensSapphirina metallina
Calocalanus styliremis
Sapphirina salpaeSapphirina stellataTemora styliferaTortanus gracilisHawaiian Islands; 1 species
Tortanus murrayiUndinula vulgaris
Low Archipelago, Marokau Island anchorage; October 28, 1899; surface;1 speciesGaetanus minorMarshall Islands, Arno Atoll; January 26, 1900; surface; 7 speciesCandacia simplexCanthoealauus pauperCentropages orsinii Haloptilus longicornisPontellina plumata Undinula vulgarisXanthocalanus pinguisNiuafu Island; lat. 15?35' S., long. 175 ?40' W.; surface; 17 speciesAcartia danaeCopilia mirabilisCorycaeus agilisCorycaeus lautusCorycaeus longistylisCorycaeus pacificus
Corycaeus typicusFarranula concinnaFarranula gibbulaFarranula rostrataLubbockia squillimanaMacrosetella gracilis
Oithona linearisOncaea minutaOncaea venustaSapphirina auronitensSapphirina nigromaculata
Philippine IslandsButauanan Island, east of Luzon; [June 1909]; surface; 1 speciesPontella validaCaldera Bay anchorage; west coast of Mindanao; February 6, 1908; surface;net set in tidal current off gangway; 13 speciesCaligus thymni Labidocera insolitaCymbasoma longispinosum Monstrilla clavataCymbasoma rigidum Monstrilla leucopsisHarpacticus chelifer Monstrilla serricornisLabidocera acuta Pontella cerami
Pontella denticaudaPontellopsis strenuaUndinula vulgaris
Iloilo Straits, between Panay and Guimaras; [January or March 1909?] ; surface;25 speciesCalanopia minorCanthocalanus pauperCentropages furcatusCorycaeus ovalisCorycaeus pumilusCorycaeus speciosusEucalanus inonachusFarranula carinataFarranula gibbula
Labidocera acutaLabidocera detruncataLabidocera kr0yeriLabidocera tenuicaudaMacrosetella gracilisNeocalanus gracilisOncaea minutaParacalanus parvusSapphirina auronitens
Temora longicornisTemora styliferaTemora turbinataTortanus murrayiTortanus recticaudaUndinula vulgarisValdiviella insignis
432 BULLETIN 100, UNITED STATES NATIONAL MUSEUMLuzon Island; surface; 4 speciesEucalanus elongatus Pleuromarnma gracilis Pleuromamma pisekiLabidocera acutaNasugbu Bay, southern Luzon; January 21, 1908; surface; 6 speciesCandacia bispinosaEucalanus elongatus Labidocera acutaPleuromamma gracilis Pleuromamma pisekiPontella surrectaPort Binanga, Luzon ; January 8, 1908 ; surface ; 4 speciesLabidocera pavo Pontellopsis bitumidaCandacia pachydactylaLabidocera acutaRomblon Island, east of Mindoro; March 25, 1908; surface; 1 speciesPontella surrectaSabtan [or Sabtang] Island, Batan Islands, north of Luzon [June 1909?];surface; 33 speciesAcartia longiremisAcrocalanus gibberAcrocalanus gracilisAcrocalanus longicornisAmenopbia peltataCalanopia aurivilliiCandacia simplexCentropages furcatusCorycaeus latusCorycaeus limbatusCorycaeus longistylis
Corycaeus typicusEucalanus mucronatusFarranula gibbulaLabidocera acutifronsLabidocera detruncataLabidocera lubbockiiLabidocera orsiniiLubbockia squillimanaMacrosetella gracilisNannocalanus minorOithona similisG. WITHOUT DATAAlbatross; 1 species
Oncaea minutaOncaea venustaPareuchaeta gracilisPleuromamma gracilisPleuromamma xiphiasPontellina plumataPseudocalanus minutusSapphirina auronitensScolecithricella bradyiScolecithrix danaeUndinula vulgaris
Dactylopusia vulgaris
LITERATURE CITED"Except in three cases, the following papers have been seen andthe references verified. In the case of two of them (Miiller, 1785,and Prestandrea, 1833) the references have been verified by librari-ans in libraries outside Washington where the books are to be found.In the other case (Wolfenden, 1905b) the book is apparently notavailable in this country, and this reference has been taken fromliterature.Baibd, William.1843. Note on the luminous appearance of the sea, with descriptions ofsome of the entomostracous insects by which it is occasioned.Zoologist (Newman), vol. 1, pp. 55-61, 3 figs.1850. The natural history of the British Entomostraca, 364 pp., 36 pis.Kay Soc, London.Bigelow, Henby Bryant.1924. Plankton of the offshore waters of the Gulf of Maine. Bull. Bur.Fish., vol. 40, pt. 2, 509 pp., 134 figs.Boeck, Axel.1S65. Oversigt over de ved Norges kyster lagtaggne Copepoder henh0-rende tie Calanidernes, Cyclopidernes og HarpactiderneaFamalier. Forh. Vid. Selsk., Christiania, for 1864, pp. 266-281.1872. Nye Slaegter og Arter af Saltvands-Copepoder. Forh. Vid. Selsk.,Christiania, vol. 14, pp. 35-60.Bourne, Gilbert C.1890. Notes on the genus Monstrilla Dana. Quart. J'ourn. Blicr. Sci., ser.2, vol. 30, pp. 565-578, pi. 37.Bbady, George Stewardson.1878. A monograph of the British free and semi-parasitic Copepoda,vol. 1, 148 pp., 33 pis. Ray Soc, London.1880. A monograph of the British free and semi-parasitic Copepoda. Vol.2, 182 pp., pis. 34-82. Ray Soc, London.1883. Report on the Copepoda collected by H. M. S. Challenger duringthe years 1873-76. Rep. Sci. Res. Voyage of H. M. S. Challenger,Zool., vol. 8, pt. 23, 142 pp., 55 pis.1918. Copepoda. Australasian Antarctic Exped., 1911-14, ser. C, Zool. andBot, vol. 5, pt. 3, 48 pp., 15 pis.Bbady, Geobge Stewardson, and David Robertson.1873. Contributions to the study of the Entomostraca. VIII. On MarineCopepoda taken in the West of Ireland. Ann. Mag. Nat. Hist., ser.4, vol. 12, pp. 126-142, pis. 8, 9.1876. Report on dredging off the coast of Durham and North Yorkshire in1874. Rep. 45th Meeting British Assoc Advancement of Science,held at Bristol in August, 1875, pp. 185-199.
14 Compiled by Lucile McCain. 433
434 BULLETIN 100, UNITED STATES NATIONAL MUSEUMCanu, Eugene.1888. Les Copepodes libres marins du Boulonnais. I. Les Calanidae. Bull.Sci. France et Belgique, vol. 19, pp. 78-106, pis. 7-9.Chun, Carl.1897. Die Beziehungen zwisehen dem arktischen und antarktischenPlankton, 65 pp., 1 map. Stuttgart.Claus, Carl.1859. Ueber das Auge der Sapphirinen und Pontellen. Arch, fur Anat,Physiol., wiss. Med., Jahrg. 1859, pp. 269-274, pi. 5B, fig. 1.1863. Die freilebenden Copepoden mit besonderer Berucksightigung derFauna Deutschlands, der Nordsee und des Mittelmeeres. 230 pp.,37 pis. Leipzig.1866. Die Copepoden-Fauna von Nizza. Ein Beitrag zur Charakteristik derFormen und deren Abanderungen "im Sinne Darwin's." 34 pp., 4pis. Marburg und Leipzig.1889. Tiber neue Oder wenig bekannte halbparasitische Copepoden, insbes-ondere der Lichomolgiden- und Ascomyzontiden-Gruppe. Arb. Zool.Inst., Wien, vol. 8, No. 3, pp. 327-370, 7 pis.1893. Ueber die Entwicklung und das System der Pontelliden. (Zugleichein Beitrag zur Nomenclaturfrage. ) Arb. Zool. Inst., Wien, vol. 10,No. 3, pp. 233-2S2 (sep. pp. 1-50), 5 pis.Cleve Per Theodor.1901. Plankton from the Indian Ocean and the Malay Archipelago. Kongl.Svenska Vet.-Akad. Handl., vol. 35, No. 5, 58 pp., 8 pis.1904. The plankton of the South African seas. I, Copepoda. Marine In-vestigations in South Africa, vol. 3 (1905), pp. 177-210, 6 pis.Dahl, Friedrich.1893. Pleuromma, ein Krebs mit Leuchtorgan. Zool. Anz., vol. 16 (1894),No. 415, pp. 104-109.1894a. Die Copepodenfauna des untern Amazonas. Ber. Naturforsch. Ges.Freiburg, new ser., vol. 8, pp. 10-23, pi. 1.1894b. Ueber die horizontale und verticale Verbreitung der Copepoden imOcean. Verh. deutsch. zool. Ges. Miinchen, vol. 4, pp. 61-SO, 4 figs.Miinchen.1895. Die Schwarmbildung pelagischer Thiere,. Zool. Anz., vol. 18, pp. 168-172.Dahl, Maria.1912. Die Copepoden der Plankton-Expedition. I. Die Corycaeinen. MitBeriicksichtigung aller bekannten Arten. Ergebnisse der Plankton-Expedition der Humboldt-Stiftung, vol. 2, 136 pp., 16 pis. Kiel undLeipzig.Dana, James Dwight.1845. Genus Corycaeus (Dana). Proc. Acad. Nat. Sci. Philadelphia, vol. 2(1846), pp. 285,286.1846. Notice of some genera of Cyclopacea. Amer. Journ. Sci. and Arts,ser. 2, vol. 1, No. 2, pp. 225-230.1847. Conspectus Crustaceorum quae in orbis terrarum circumnavigatione,Carolo Wilkes e classe Reipublicae Foederatae duce, lexit et descrip-sit Jacobus D. Dana. Pt. 1. Proc. Amer. Acad. Arts and Sci., vol. 1,pp. 149-154. (Reprinted in [Silliman's] Amer. Journ. Sci. and Arts,ser. 2, vol. 8, pp. 276, 277, 1849.)
COPEPODS GATHERED BY ALBATROSS?WILSON 435Dana, James Dwight?Continued1849. Conspectus Crustaceoruin quae in orbis terrarum circumnavigatione,Carolo Wilkes e classe Reipublicae Foederatae duce, lexit et des-cripsit Jacobus D. Dana. Pt. 2. Proc. Amer. Acad. Arts and Sci.,vol. 2, pp. 9-61. (Reprinted in [Silliinan's] Amer. Journ. Sci. andArts, ser. 2, vol. 8, pp. 278-285.
)
1853-55. United States Exploring Expedition during the years 1838, 1839,1840, 1841, 1842, under the command of Charles Wilkes, U. S. N.,Crustacea, vol. 14, pt. 2, pp. 691-1618, 1853; folio atlas, 96 pis.,1855. Philadelphia.ESTEBLY, CALVIN OLIN.1905. The pelagic Copepoda of the San Diego region. Univ. California Publ.,Zool., vol. 2, pp. 113-233, 62 text figs.1906. Additions to the copepod fauna of the San Diego region. Univ. Cali-fornia Publ. Zool., vol. 3, No. 5, pp. 53-92, pis. 9-14.1911. Third report on the Copepoda of the San Diego region. Univ. Califor-nia Publ. Zool., vol. 6, No. 14, pp. 313-352, pis. 26-32.Farran, George P.1903. Record of the Copepoda taken on the mackerel fishing grounds off Cleg-gan, Co. Galway, in 1901. Report on the sea and inland fisheriesof Ireland for the year 1901, pt. 2, app. 7, pp. 1-18, pis. 16, 17.1905. Report on the Copepoda of the Atlantic slope off counties Mayo andGalway. Ann. Rep. Fisheries, Ireland, 1902-03, pt. 2, app. 2, pp. 23-52, pis. 3-13.1908. Second report on the Copepoda of the Irish Atlantic slope. FisheriesIreland, Sci. Invest, for 1906, pt. 2, 104 pp., 11 pis.1911. Plankton from Christmas Island, Indian Ocean. I. On Copepoda of thefamily Corycaeidae. Proc. Zool. Soc. London, 1911, pp. 282-296, pis.10-14.1913. Plankton from Christmas Island, Indian Ocean. 2, On Copepodaof the genera Oithona and Paroithona. Proc. Zool. Soc. London,1913, pp. 181-193, pis. 27-31.1926. Biscayan plankton collected during a cruise of H. M. S. Research,1900. Pt. 14. The Copepoda. Journ. Linn. Soc. London, Zen]..vol. 36, No. 243, pp. 219-310, 2 figs., pis. 5-10.1929. Crustacea, pt. 10, Copepoda. British Antarctic (Terra Nova) Expe-dition, 1910, Nat. Hist. Rep., Zool., vol. 8, No. 3, pp. 203-306, 37 fi?s.,4 pis.1936. Copepoda. Great Barrier Reef Expedition, 1928-29. Sci. Repts., vol.5, No. 3, pp. 73-142, 30 figs.Fbuchtl, F.1923. Cladocera und Copepoda der Aru-Inseln. (Vorlaufige Mitteilung:Artenlist und kurze diagnosen der neuen Formen.) Abb. Senck.Naturf. Ges., vol. 37, No. 4, pp. 449-457, pi. 26.GlESBRECHT, WlLHELM.1883. Die freilebenden Copepoden der Kieler Foehrde. Vierter Ber. Comm.Wiss. Untersuch. deutsch. Meere, Kiel, 1877-81, Jahrg. 7-11, IIAbth., pp. 87-168, 12 pis.1881-1891. Elenco dei Copepodi pelagici raccolti dal tennente di vascelloGaetano Chierchia durante il viaggio della R. Corvetta Yet tor Pisaninegli anni 1882-1885, e dal tenente di vascello Francesco Orsini nelMar Rosso, nel 1884. Atti R. Accad. Lincei, Rome, ser. 4, vol. 4.sem. 2, pp. 284-287, pp. 330-338, 1888 ; vol. 5, sem. 1, pp. 811-815
;
sem. 2, pp. 24-29, 1889 ; vol. 7, sem. 1, pp. 474-481, 1891.S43804?50??20
436 BULLETIN 100, UNITED STATES NATIONAL MUSEUMGiesbrecht, "Wilhelm?Continued1892. Systematik und Faunistik der pelagischen Copepoden des Golfes vonNeapel und der angrenzenden Meeresabscknitte. Fauna und Florades Golfes von Neapel, rnonogr. 19, 831 pp., 54 pis. Berlin.1895. Die pelagischen Copepoden. Bull. Mus. Comp. Zool., vol. 25, No. 12,pp. 243-263, 4 pis.1896. Ueber pelagische Copepoden des Rothen Meeres, gesammelt vomMarinestabsarzt Dr. Augustin Kramer. Zool. Jahrb., Abt. Syst.,vol. 9, pp. 315-328, pis. 5, 6.1897. Notizen zur Systematik der Copepoden. Zool. Anz., vol. 20, pp.253-255.1898. in Giesbrecht, W. and O. Schmeil, Copepoda. I, Gymnoplea. Das Tier-reicb, Lief. 6, Crustacea. 169 pp., 31 text figs.1899. Die Asterocheriden des Golfes von Neapel und der angrenzendenMeeres-Abscknitte. Fauna und Flora des Golfes von Neapel,monogr. 25, vi + 217 pp., 11 pis.1902. Copepoden. Resultats voyage S. Y. Belgica, 1897-99. Rapportsscientifiques, Exped. Antarctique Beige, Zool., 49 pp., 13 pis.1903. pp. 202, 203, pi. 7, fig. 8 ; pi. 8, fig. 29 in Lo Bianco, Salvatore, Le pescheabissali eseguite da F. A. Krupp col Yacht Puritan nelle adiacenzedi Capri ed in altre localita del Mediterraneo. Mittheil. aus derZool. Stat, zu Neapel, vol. 16, Nos. 1, 2, pp. 109-279, pis. 7-9.GuNNERUS, JOHANN ERNST.1765. Nogle smaa rare og meestendeelen nye norske S0edyr. SkrifterKi0benhavnske Selskab., vol. 10 (1770), pp. 166-176, figs. 1-32.Haeckel, Ernst.1864. Bietrage zur Kenntniss der Corycaeiden. Zeitschr. fiir Med. und Natur-wiss., Jena, vol. 1, pp. 61-112, pis. 1-3.Johnson, Martin Wiggs.1937. Notes on the final metamorphosis of the male Aegisthus mucronatvsGiesbrecht, and its bearing on the status of some uncertain species.Trans. Amer. Micr. Soc, vol. 56, No. 4, pp. 505-509, 12 figs.1938. Concerning the copepod Eucalanus elongatus Dana and its varieties inthe northeast Pacific. Bull. Scripps Inst. Oceanogr., Techn. Ser., vol.4, No. 6, pp. 165-1S0, 28 figs.KR0TER, HeNRIK.1838. Gronlands Amfipoder. II : Beskrivelse af nogle gronlandske Kraebsdyrudenfor Amfipodernen. Kong. Danske Vidensk. Selsk., Naturvidensk.og math. Afh., vol. 7, pp. 301-312, pi. 4.[1S42]. Pis. 41-43, Crustaces [Copepoda] in Atlas de Zoologie. Voyages de laCommission scientifique du Nord en Scandinavie, en Laponie, au Spitz-berg et aux Feroe [pendant les annees 1838, 1839, et 1840 sur la cor-vette La Recherche, commandee par M. Fabvre] . Publies par ordredu Gouvernment sous la direction de M. Paul Gaimard. Arhus Ber-trand, Editeur. Firmin Didot freres, Paris. 76 [86?] pis.184S-49. Karcinologiske Bidrag. Naturh. Tidsskr., Kj0benhavn, ser. 2, vol. 2,pp. 527-609, pi. 6 (pp. 527-560, 1848; pp. 561-609, 1849).Leach, William Elford.3819. Entomostraces. Dictionnaire des sciences naturelles, vol. 14, pp. 524-543.Leigh-Sharpe, W. Harold.1934. The Copepoda of the Siboga Expedition in the Dutch East Indies 1899-1D00. Monogr. 29b, pt. 2, Commensal and parasitic Copepoda, 40 pp.,39 figs.
COPEPODS GATHERED BY ALBATROSS?WILSON 437Lilljeborg, William.1853. De Crustaceis ex ordinibus tribus: Cladocera, Ostracoda et Copepoda,in Scania occurrentibus. [Original title: Oni de inom Skanekonmiande Crustaceer af ordningarne Cladocera, Ostracoda ochCopepoda.] 222 pp., 27 pis. Lund, Akademisk Afhandling.Lubbock, John.1853. Description of a new genus of Calanidae. Ann. Mag. Nat. Hist., ser. 2,vol. 11, pp. 25-29, pi. 1.1854. On some Arctic species of Calanidae. Ann. Mag. Nat. Hist., ser. 2, vol.14, pp. 125-129, pi. 5.1S56. On some Entomostraca collected by Dr. Sutherland in the AtlanticOcean. Trans. Ent. Soc. London, new ser., vol. 4, pp. 8-39, pis. 2-12.1857. Description of eight new species of Entomostraca. Ann. Mag. Nat. Hist.,ser. 2, vol. 20, pp. 401-410, pis. 10, 11.1S60. On some oceanic Entomostraca collected by Captain Toynbee. Trans.Linn. Soc. London, vol. 23, pp. 173-191, pi. 29.Milne Edwards, Henri.1840. Histoire naturelle des Crustac6s, comprenant l'anatomie, la physiologieet la classification de ces animaux, vol. 3. 038
-f- 32 pp., 42 pis.MrAzek, A.1902. Arktische Copepoden. Fauna Arctica, vol. 2, fasc. 3, pp. 501-528, 13figs., pi. 4-6.Muller, Otto Frederik.1776. Zoologiae Danicae prodromus, seu Auimalium Daniae et Norvegiae in-digenarium characteres, nomina, et synonyina imprimis popularium.xxxii + 274 pp. Havuiae.1785." Entomostraca, seu insecta testacea quae in aquis Daniae et Norvegiaereperit, descripsit, et iconibus illustravit. iv -+- 134 pp., 21 col. pis.Leipzig.Nordmann, Alexander von.1832. Mikrographiscbe Beitrage zur Naturgeschichte der wirbellosen Thiere.Part 2. xviii + 150 pp., 10 pis. Berlin.Norman, Alfred Merrill.1869. Shetland Final Dredging Report. Pt. II. On the Crustacea, Tuni-cata, Polyzoa, Echinodermata, Actinozoa, Hydrozoa, and Porifera.Ilept. 3Sth Meeting British Assoc. Advancement of Science, held atNorwich in August, 1868, pp. 247-336.1903. New generic names for some Entomostraca and Cirripedia. Ann. Mag.Nat. Hist., ser. 7, vol. 11, pp. 367-369.Oken, Lorenz.1815. Lehrbuch der Naturgeschichte. Vol. 3, Zoologie, pt. 1, 842 + xxvii pp.Jena.Pesta, Otto.1920. Die Planctoncopepoden der Adria. Zool. Jahrb. (Abt. Syst), vol.43, pp. 471-660, 17 figs., pi. 8, figs. 1-11.1927. Copepoda non parasitica. In G. Grimpe u. E. Wagler, Die Tierweltder Nord- und Ostsee, Lief. 8, pt. Xc? 72 pp., 1!) figs.1930. Notiz zu einer Dredge-Probe mariner Copepoden aus Siidge. :(Antarktis). Zool. Ergeb. Reisen von Dr. L. Kohl-Larsen nachden subantarktischen Inseln bei Neuseeland und nach Siidgeorgien.1. Senckenbergiana, vol. 12, No. 2/3, pp. 101-103, fig. 1 , 2.
15 Verified at the New York Public Library ; not seen by the compiler.
438 BULLETIN 100, UNITED STATES NATIONAL MUSEUMPhilippi, A.1843. Fernere Beobachtungen iiber die Copepoden des Mittelmeeres. TiberCyclopsina. Arcb. f. Naturg. (Wiegmann), vol. 1, Jabrg. 9, pp.54-71, 1 table, pis. 3, 4.Prestandrea, Nicolo. 101833. Su di alcuni nuovi crostacei dei mari di Messina. Effemeridi Sci.e Lett. Sicilia, vol. 6, pp. 3-14.Richard, Jules.1893. Heterocbaeta grimaldii, n. sp., Calanide nouveau provenant de latroisieine campagne seientifique du yacbt L'Hirondelle. Bull. Soc.Zool. France, vol. 18, pp. 151, 152.Rose, Maurice.1929. Copepodes pelagiques particulierernent de surface provenant des cam-pagnes scientifiques de S. A. S. Prince Albert Ier de Monaco. Res.Camp. Sci. Albert de Monaco, No. 78, 123 pp., 6 pis.1933. Copepodes pelagiques. Faune de France, No. 26, 374 pp., 456 figs.,19 pis.Sars, Georg Ossian.1900. Crustacea. The Norwegian North Polar Expedition, 1893-1896, Sci.res., vol. 5, 141 pp., 36 pis.1901-03. An account of the Crustacea of Norway. Vol. 4, Copepoda Cala-noida. Pts. 1, 2, pp. 1-28, pis. 1-16, 1901. Pts. 3-12, pp. 29-144,pis. 17-96, 1902. Pts. 13, 14, pp. 145-171, pis. 97-102 and suppl.,1903; pis. 1-6, 1903. Bergen.1903-11. An account of the Crustacea of Norway. Vol. 5, Copepoda Har-pacticoida. Pts. 1, 2, pp. 1-28, pis. 1-16, 1903. Pts. 3-6, pp. 29-72,pis. 17-48, 1904. Pts. 7-10, pp. 73-132, pis. 49-80, 1905. Pts. 11-16,pp. 133-196, pis. 81-128, 1906. Pts. 17-20, pp. 197-240, pis. 129-160,1907. Pts. 21-24, pp. 241-276, pis. 161-192, 1908. Pts. 25-28, pp.277-336, pis. 193-224, 1909. Pts. 29, 30, pp. 337-36S, pis. 225-230 andsuppl., 1910 ; pis. 1-10 and suppl., 1910. Pts. 31-36, pp. 369^43, pis.11-54, 1911. Bergen.1905a. Liste preliniinaire des Calinoides recueillis pendant les canipagnesde S. A. S. le Prince Albert de Monaco, avec diagnoses des genreset des especes nouvelles. Pt. 1. Bull. Mus. Oceanogr. Monaco,No. 26, 22 pp.1905b. Liste preliniinaire des Calinoides recueillis pendant les campagnesde S. A. S. le Prince Albert de Monaco, avec diagnoses des genreset des especes nouvelles. Pt. 2. Bull. Mus. Oceanogr. Monaco,No. 40, 24 pp.1907. Notes suppleinentaires sur les calanoides de la Princesse-Aliee. Bull.Inst. Oc<5anogr. Monaco, No. 101, 27 pp.1913-18. An account of the Crustacea of Norway. Vol. 6, Copepoda Cyclo-poida. Pts. 1-4, pp. 1-56, pis. 1-32, 1913. Pts. 5, 6, pp. 57-SO,pis. 33-48, 1914. Pts. 7-10, pp. 81-140, pis. 49-80, 1915. Pts.11, 12, pp. 141-172, pis. 81-96, 1917. Pts. 13, 14, pp. 173-225, pis.97-118, 1918. Bergen.1916. Liste systematique des Cyclopoides, Harpacticoides et Monstrilloidosrecueillis pendant les campagnes de S. A. S. le Prince Albert deMonaco, avec descriptions et figures des especes nouvelles. Bull.Inst. Oceanogr. Monaco, No. 323, 15 pp., 8 pis.
18 Verified at the library of the Museum of Comparative Zoology, Harvard University
;
not seen by the compiler.
COPEPODS GATHERED BY ALBATROSS?WILSON 439Sars, Georg Ossian?Continued1920. Calanoides recueillis pendant les campagnes de S. A. S. le PrinceAlbert de Monaco. (Nouveau Supplement.) Bull. Inst. Oceanogr.Monaco, No. 377, 20 pp.1921. An account of the Crustacea of Norway. Vol. 8, Copepoda Monstril-loida and Notodelphyoida. Pts. 1-6, pp. 1-91, pis. 1-37. Bi c1924-25. Copepodes particulierement bathypelagiques provenant des cam-pagnes scientifiques du Prince Albert Ier de Monaco. Res. camp.sci. Albert de Monaco, No. 69, 128 pis., 1924 ; test, 408 pp., 1925.Schneider, J. Sparre.1884. Unders0gelser af dyrelivet i de arktiske fjorde. II. CrustaceaPycnogonida indsamlede i Kvaenangsfjorden 1881. Tromso Mus.Aarsbeft., vol. 7, pp. 47-134, 5 pis.Scott, Andrew.1902. On Some Red Sea and Indian Ocean Copepoda. Trans. LiverpoolBiol. Soc, vol. 16, pp. 397-128, 3 pis.1906. Report on the tow-nettings; faunistic notes. Trans. Liverpool Biol.Soc, vol. 20, pp. 19-57, pis. 2-10.1909. The Copepoda of the Siooga Expedition in the Dutch East Indies 1899-1900. Monogr. 29a, pt. 1, Free-swimming, littoral and semiparasiticCopepoda. 323 pp., 69 pis. Leyden.Scott, Thomas.1892. Additions to the fauna of the Firth of Forth. Part IV. 10th Ann.Rept. Fish. Board of Scotland, pp. 244-272, pis. 7-13.1894. Report on Entomostraca from the Gulf of Guinea. Trans. Linn. Soc.London, ser. 2, Zool., vol. 6, pt. 1, 161 pp., 15 pis.1899. Notes on recent gatherings of Micro-Crustacea from the Clyde and thMoray Firth. 17th Ann. Rep. Fishery Board for Scotland, pt. 3,pp. 248-273, pis. 10-13.1900. Notes on some gatherings of Crustacea collected for the most part onboard the Fishery Steamer Garland and examined during theyear (1899). 18th Ann. Rep. Fishery Board for Scotland, pt. 3, pp.382-107, pis. 13, 14.Sewell, R. B. Seymour.1912. Notes on the surface-living Copepoda of the Bay of Bengal, I and II.Records of the Indian Museum, vol. 7, pp. 313-382, 5 figs., pis. 14-24.1913. Notes on the biological work of the R. I. M. S. S. Investigator disurvey seasons, 1910-11 and 1911-12. Journ. and Proe. AsiatiiBengal, new ser., vol. 9. Nos. 8 & 9, pp. 329-330, pi. 25, 6 text8 tables.1914. Notes on the surface Copepoda of the Gulf of Mannar. Spolia Zey-lanica, vol. 9, pp. 191-262, pis. 17-21, 1 map, 1 table.1924. Fauna of the Chilka Lake. Crustacea Copepoda. Mem. Indian Mus.,vol. 5, pp. 771-851, pis. 44-59.1929,1932. The Copepoda of Indian Seas. Calanoida. Mem. Indianvol. 10, pp. 1-221, 81 figs., 1929; pp. 223-407, figs. 82-131, 6 pis..Smirnov, S. S.1932. Zur fauna der marinen Copepoda-Harpacticoida von Franz -.1Land. Trans. Arctic Inst, U. S. S. R., vol. 2, pp. 195 21 I. 27 IStebbing, T. R. R.1910. General catalogue of South African Crustacea (Part V of S. Atacea, for the Marine Investigations in South Africa). Ann. SoutbAfr. Mus., vol. 6, pt. 4, pp. 2S1-593, pis. 15-21.
440 BULLETIN 100, UNITED STATES NATIONAL MUSEUMSTEENSTEUP, J. J. S., AND LtJTKEN, C. P.1861. Bidrag til kundskab om (let aabne Havs Snyltekrebs og Lernaeer sanitoui nogle andre nye eller hidtil kun ufuldstaendigt kjendte para-sitiske Copepoder. Dansk. Yid. Selsk. Skriv., vol. 5, pp. 341-432, 15,pis.Steueb, Adolf.1898. Expedition S. M. Scliiff Pola in das Rothe Meer Nordliche Halfte(October 1895-Mai 1896). Zoologische Ergebnisse, VII : Sapphirinendes Rothen Meeres. Denkschr. matb.-nat. CI. Akad. Wiss., Wien. vol.65, pp. 423-431, 1 map.1904. Copepoden der Valdivia-Expedition. Zool. Anz., vol. 27, pp. 593-598, 4figs.1926. Copepoda : Cepbalopbanes G. O. Sars, 1G07, der Deutscben Tiefsee-Expedition. Systematik und Verbreitung der Gattung. Wiss.Ergebn. der Deutscben Tiefsee-Exped., 1898-1899, vol. 23, No. 4, pp.181-191, 18 figs.1932. Copepoda 6: Pleuromamma Giesbr., 1S98, der Deutscben Tiefsee-Ex-pedition. Wiss. Ergebn. der Deutscben Tiefsee-Exped., 1S9S-1899,vol. 24, No. 1, 119 pp., 196 figs., 17 maps.Tanaka, O.1938. Note on Calanus cristatus. Jap. Journ. Zool., vol. 7, No. 4, pp. 599-601,2 figs.Templeton, Robeet.1837. Description of a new Irish crustaceous animal. Trans. Ent. Soc. Lon-don, vol. 2, pp. 34-40, pi. 5.Thompson, Isaac Cooke.1888. Copepoda of Madeira and the Canary Islands, with descriptions of newgenera and species. Journ. Linn. Soc. London, Zool., vol. 20 (1S90),pp. 145-156, pis. 10-13.1903. Report on the Copepoda obtained by Mr. George Murray, F. R. S., duringthe cruise of the Oceana in 189S. Ann. Mag. Nat. Hist., ser. 7, vol.12, 36 pp., 7 pis.Thompson, I. C, and Scott, Andeew.1897. In Herdman, W. A., I. C. Thompson, and Andrew Scott, On the Planktoncollected continuously during two traverses of the North Atlantic inthe summer of 1897 ; with descriptions of new species of Copepoda
;
and an appendix on dredging in Puget Sound. Trans. Liverpool Biol.Soc, vol. 12 (1898), pp. 33-90, pis. 5-8.1903. Report of Copepoda collected by Professor Herdman at Ceylon in 1002.Ceylon Pearl Oyster Fisheries, Suppl. repts., No. 7 ; Rept. to ColonialGovernment, pt. 1, pp. 227-307, pis. 1-20.Thompson, J. V.1830. On the luminosity of the ocean, with descriptions of some remarkablespecies of luminous animals (Pyrosoma piymaca and Sappltirinaindicator), and particularly of the four new genera, Nocticula [sic],Cynthia, Lucifer, and Podopsis of the Schizopodae [sic]. (Addendato Memoir 1. Addendum to Memoir 2.) Zoological researches, andillustrations ; or natural history of nondescript or imperfectly knownanimals, in a series of memoirs, vol. 1, mem. 3. Vol. 1, 110 pp., 14 pis.van Breemen, P. J.1908. VIII. Copepoden. Nordisches Plankton, Lief. 7, 264 pp., 251 figs.
COPEPODS GATHERED BY ALBATROSS?WILSON 441Vanhoffen, Ernst.1897a. Bradyanus Oder Brad nidi it*. Zool. Anz., vol. 20, pp. 322, 323.1897b. Die Fauna und Flora Gronlands. In Erich von Drygalski, Gronland-Expedition der Gesellschaft fur Erdkunde zu Berlin, 1891-1893, vol.2, pt. 1, pp. 1-320) , 30 figs., pis. 1-6.1907. Crustaceen aus dem kleinen Karajakfjord in West-Gronland. Zool.Jahrb., Abt. Syst, vol. 25, No. 4, pp. 507-522, pis. 20-22. Jena.Wakbbn, William.1896. New Geoinetridae in the Tring Museum. Novitates Zoologicae, vol. 3,pp. 99-148.Wheeler, William Morton.1901. The free-swiinrning copepods of the Woods Hole region. Bull. r. S.Fish Comm., vol. 19 ( for 1899 ) , pp. 157-192, 30 figs.Willey, Arthur.1920. Report on the Marine Copepoda collected during the Canadian ArcticExpedition. Rep. Canadian Arctic Exped., 1913-18, vol. 7, Crustacea,pt. K : Marine Copepoda, pp. 3K-46K, 70 figs.Wilson, Charles Branch.1905. North American parasitic copepods belonging to the family Caligidae.Pt. 1. The Caliginae. Proc. U. S. Nat. Mus., vol. 28, pp. 479-672,pis. 5-29.1907. North American parasitic copepods belonging to the family Caligidae.Pt. 2. The Trebinae and Euryphorinae. Proc. U. S. Nat. Mus.. voL31, pp. 669-720, pis. 15-20.1924. New North American parasitic copepods, new hosts, and notes oncopepod nomenclature. Proc. U. S. Nat. Mus., vol. 64, No. 2507, 22pp., 3 pis.1932. The copepods of the Woods Hole region, Massachusetts. U. S. Nat.Mus. Bull. 158, 635 pp., 316 figs., 41 pis.1942. The copepods of the plankton gathered during the last cruise of theCarnegie. Carnegie Inst. Wash. Publ. 536, Sci. Res. Cruise 7 of theCarnegie during 1928-1929 under the command of Capt. J. P. Ault.Biology?I, v + 237 pp., 16 charts, 136 figs.With, Carl.1915. Copepoda I. Calanoida Amphascandria. Danish Ingolf-Expedition,vol. 3, pt. 4, 260 pp., 422 figs., 1 chart, 8 pis.WOLFENOEN, RICHARD NORRIS.1904. Notes on the Copepoda of the North Atlantic Sea and the Faroe Channel.Journ. Marine Biol. Assoc. United Kingdom, new ser., vol. 7. No. 1,pp. 110-146, pi. 9.1905a. Notes on the collection of Copepoda. The Fauna and Geography ofthe Maldive and Laccadive Archipelagoes, vol. 2, suppl. 1, PP1040, pis. 90-100.1905b. 17 Plankton studies, preliminary notes upon new or interesting species.Pt. I, Copepoda. Rebman, Ltd., London. 24 pp., 7 pis.1911. Die marinen Copepoden: 2. Die pelagischen Copepoden der Westwind-drift und des svidlichen Eismeers. Mit Beschreibung mehrer neuerArten aus dem atlantischen Ozean. Deutsche Sudpolar-Exped., 1901-1903 vol 12, Zool., vol. 4, fasc. 4. pp. 181-401. tigs. 1-82, pi. 22-44.
17 Not verified ; publication unavailable in tins country.

U. S. NATIONAL MUSEUM BULLETIN 100 VOL 14 PART 4, PLATE 2
Species of Acartia. Acrocalanus. and Amallothrixirtia hamaia. n< female: 1. Dorsal viev . -first: segment and proximalfourth-fifth thoracic segment and genital
'
. icrocalanus monachal Giesbrecht, femali7,8, Amallolhrtx arruata (Sars), femali
843804 50
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14 PART 4. PLATE 3
AMALLOTHRIX INVENUSTA, NEW SPECIES. FEMALE.9, Dorsal view; 10, lateral view; 11, second antenna; 12, first maxilla; 13, second maxilla;14, maxilliped; IS, fifth legs; 16, second leg; 17, third leg.
U. S. NATIONAL MUSEUM BULLETIN 100, VOL. 14 PART 4. PLATE 4
Species of amallothrix and arietellus.21, 22, Amallothrix obtu 5ars), female: 21, Dorsal view; 22, fifth23-26, Arietellus armatus Wolfenden; 23, Dorsal view, female; 24,fifth legs, female; !'?. fifth legs, male.27-29, Arietellus tripartitus, new male: 27, ! ifilaments in lateral
U. S. NATIONAL MUSEUM
SPECIES OF CALANOPIA, CANTHOCALANUS, AND CONAEA.30-33, Calanopia sarsi, new species: 30, Dorsal view, female; 31, dorsal view, male; 32,fifth leg, female; 33, fifth legs, male.34?35, Canthocalanus pauper (Giesbrecht): 34, Fifth leg, female; 34a, first leg, sex?; 35, fifthlegs, male.36, 37, Conaea gracilis (Dana); 36, Dorsal view, female; 37, dorsal view, male.38-46, Conaea gracilis (Dana), sex?: 38, First antenna; 39, second antenna; 40, first maxilla;41, second maxilla; 42, maxilliped; 43, first leg; 44, second leg; 45, fourth leg; 46,third leg.
U. S. NATIONAL MUSEUM
Species of disseta, Dysgamus. and Euaugaptilus.47-50, Disseta scopularis (Brady): 47, Dorsal view, fei ile; 49,fifth leg, female; 50, fifth legs, male.51-60, Dysgamu s pacificus, new species, male: 51, Dorsal \first maxilla; 54, second maxilla; 55, maxilliped; :leg; 59, third leg; 60, fourt ;61, Euaugaptilus rigidus (Sars), femal- .
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. PART 4 PLATE 7
Species of Euaugaptilus, Eucalanus. and Euaetidius.62, Euaugaptilus rigidus (Sars), female: Dorsal view63-67, Eucalanus mulicus [Sars MS.] Wilson, new species, female: 63, Dorsal view; 64,lateral view; 65, rostral filaments; 66, second antenna; 67, mandible.68, 69, Eucalanus muticus [Sars MS.| Wilson, new species, male: 68, Urosome; 69, fifth legs.70, 71, Euaetidius bradyi (A. Scott), male: 70, Dorsal view; 71, fifth leg.
U. S. NATIONAL MUSEUM
72, 73,74-78,
79-83.
84,85-88,
Species of Euchaeta and Euchirella,Euchaeta concinna Dana, female: 72, Dorsal view : me.Euchaeta wolfendeni A. Scott: 74, Dorsal view, female;female; 76, urosome, lateral view, female; 77. fifth legof left fifth leg, male.Euchaeta longicornis Giesbrecht, femaleside; 81, rostrum in lateral view; 82, uififth legs.Euchirella bella Giesbrecht, male: 84, FiftlEuchirella galeata Giesbrecht: 85, La:87, chewing blade of mandible, mmature male.
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14, PART 4 PLATE 9
Species of Euchirella.89 91, Euchirella galeata Giesbrecht: 89, Dorsal view, female; 90, lateral view, female;91, fifth legs, male.92-94, Euchirella bella Giesbrecht. female: 92. Dorsal view; 93, lateral view; 94, basipodof fourth leg.95-97' Euchirella venusta Giesbrecht, female: 95, Dorsal view; 96, lateral view; 97, urosome,lateral view; 97', basipod of fourth leg.98-100, Euchirella grandicornis, new species, female: 98, Second antenna; 99, mandible;100, fourth leg.
U. S. NATIONAL MUSEUM BULLETIN 100, VOL. 14. PART 4 PLATE 10
109
Species of Euchirella, arietellus. and Gaetanus.101-106, Euchirella grandicornis, new species: 101, Dorsal viimale; 103, lateral view, female; 104, second maxill,female; 106, fifth le107. Arietellus giesbrechti Sars, female: Fifth le108-113, Gaetanus curvispinus, new species:female; 110, basipod of four: ale; 111, fifth I112, fifth legs, adult male; 113, rost:
U. S. NATIONAL MUSEUM BULLETIN 100, VOL. 14. PART 4 PLATE 11
118
Species of Gaetanus. Gaussia. Heterorhabdus. and labidocera.114?116, Gaetanus microcanthus, new species: 114, Dorsal view, female; 115, lateral view,female; 116, fifth legs, male.117-119, Gaussia princeps (T. Scott): 117, Dorsal view, female; 118, lateral view, female;119, dorsal view, male.120, Heterorhabdus clausii (Giesbrecht), female: Fifth leg.121-122, Labidocera acuta (Dana), female: 121, Dorsal view; 122, lateral view.
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. PART 4 PLATE 12
SPECIES OF LABIDOCERA AND LOPHOTHRIX.125. Labidocera acuta (Dana) male: Doi a view.124, 125, Labidocei rons (Dana): 124, Dorsal view, female; 12 ; .126-136, Lophothrix tarsi, - female: 126, D ; 127, laterarostrum; \1<>. second a. I 0, mandible; 131,maxilla; L33, maxilliped; L34 eg; 135, third le
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. PART 4 PLATE 13
Species of Macandrewella.137-143, Macandrewella chelipes (Giesbrecht), female: 137, Dorsal view; 138, lateral view;139, rostrum; 140, second antenna; 141, mandible; 142, second maxilla; 143,maxilliped.144-147, Macandrewella chelipes (Giesbrecht), male: 144, Right fifth leg; 145, left fifth leg146, endopod of left fifth leg; 147, exopod of left fifth leg.148-156, Macandrewella sewelii Farran, female: 148, Dorsal view; 149, lateral view; 150,rostrum; 151, urosome, lateral view; 152, mandible; 153, second maxilla; 154,maxilliped; 155, second legs; 156, third legs.157-159, Macandrewella sewelii Farran, male: 157, Fifth legs; 158, right fifth leg, distal view;159, left fifth leg, distal view.
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. PART 4 PLATE 14
Species of Macandrewella and Pareuchaeta.160-169, Macandrewella agassizi, nev es, female: 160, Dorsal view; 161, I162, second antenna; 163, mandible; 164, second maxilla; 165, maxilliped;second leg; 167, third leg; 168, fourth 1< . ; 1170-172, Macandrewella agassizi, new species, male: 170, Fifth liexopod of right fifth leg; 172, distal portion of left fiftl173-176, Pareuchaeta erebi Farran, female: 173, Dorsaprotuberance of genital sej177-179, Pareuchaeta erebi Farran, male: 177, Basipod and179, terminal armature of exopod of le1
U. S. NATIONAL MUSEUM BULLETIN 100. VOL 14. PART 4 PLATE 15
186
I mm.
SPECIES OF PAREUCHAETA. PHYLLOPUS. AND PONTELLA.180-185, Pareuchaeta grandiremis (Giesbrecht): 180, Dorsal view, female; 181, lateral view,female; 182, lateral view, male; 183, genital segment, lateral view-, female; 184,fifth legs, male; 185, terminal armature of exopod of left fifth leg, male.186-188, Pareuchaeta rasa Farran: 186, Lateral view, female; 187, fifth legs, male; 188,terminal armature of exopod of left fifth leg, male.L89, Phyllopus muticus Sars, female: Fifth legs.190, 191, Pontella atlantica (Milne Edwards), female: 190, Dorsal view; 191, lateral view.
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194
SPECIES OF LABIDOCERA AND PONTELLA.192, 193. Labidocera detruncata (Dana). '2, Dorsal
' 194, Labidocera nerii (Kr0yer), female: Dorsal195-197, Pontella danae (Giesbrecht), female: 195, Dorsal ' "ew:198-204, PonteuTpulvinata, new sped 'orsal viK)0 middle segmentsudible, fen:
U. S. NATIONAL MUSEUM BULLETIN 100, VOL. 14, PART 4 PLATE 17
Species of Pontella and Scaphocalanus.207-211, Pontella securifer Brady, female: 207, Dorsal view; 208, lateral view; 209, urosome,dorsal view; 210, urosome, ventral view; 211, fifth leg.212-214, Pontella securifer Brady, male: 212, Dorsal view; 213, right first antenna; 214,fifth legs.215-217, Pontella tenuiremis Giesbrecht, female: 215, Dorsal view; 216, urosome, dorsalview; 217, fifth leg.218, 219, Pontella tenuiremis Giesbrecht, male: 218, Dorsal view; 219, fifth legs.220, 221, Scaphocalanus affinis (Sars), female: 220, Dorsal view; 221, fifth leg.223-226, Scaphocalanus robustus (T. Scott), female: 223, Second antenna; 224, secondmaxilla; 225, maxilliped; 226, fifth leg.
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SPECIES OF SCAPHOCALANUS. SCOLECITH RICELLA. TORTANUS. AND EUCHAETA.227-229, Scaphocalanus robustus (T. Sett), female: 227, Dorsal view; 22S, lateral229, third leg.#230-232, Scolecithricella dentata (Giesbrecht) : 230, Lateral view, male (fiftated); 231, fifth legs, female; 232, fifth lees, male.233, 234, Scolecithricella vittata (Giesbrecht), female: 233, D235, 237-241, Tortanus murrayi A. Scott, female: \ lt^? a ;238, mandible; 239, first maxilla; 240. second maxilla; 241. fifth236, 242, Tortanus murrayi A. Scott, mal< '-? &<243, 244, Euchaeta spinosa Giesbrecht: 24: - 44 dportion of left fifth leg. male.
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249
SPECIES OF PONTELLA. GAETANUS. EUCHIRELLA, PAREUCHAETA,SCOLEC1THRICELLA. AND UNDINULA.245, Ponlella pulvinata, new species, female: I rosome, dorsal view.246, Gaetanus microcanthus, new species, female: Basipod ol fourth leg.247. 24S, Euchirella hella Giesbrecht : 247, Fifth legs, male; 248, basipod of fourtrrlegJjemale.249, Pontella atlantica (Milne Edwards), female: Urosome, dorsal view.2 ; (t. Pareuchaeta (Farran), male: Distal portion of exopod of left fifth leg.251, Scolecithricella auropecten (Giesbrecht). female: Fifth legs.252 2SS, Undinula caroli (Giesbrecht); 252, Dorsal view, female; 253, lateral view, female;2 ; 4, urosome, lateral view, female; 255, fifth legs, male.256-259, Undinula darwinii (Lubbock): 256, Dorsal view, female; 257. lateral view, female;258, urosome, lateral view, female; 25 l>, fifth lees, male.260, / ? i (Dana), male: Right fifth leg.261-265, Euchirella bella Giesbrecht. female: 261, Second antenna; 262. mandible; 263,maxilliped; 264, firsl leg, 265, second leg.
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. PART 4 PLATE
Species of Acartia. amallophora. amallothrix. Arietellus. andCalanopia.267?269, Acartia laxa Dana: 267, l> >rsal view, male; 268, fiftl eg,fen ;269,271-274, Acartia tumida Willey: 271, Dorsal view, female; 27_legs, female: 274, fifth legs, male.275, Amallophora typica T. Scott, female: Fifth276, Amallothrix emarginata (Farran), female: Fifth '277, Amallothrix fa/cifer (Farran Fifth legs.278, Amallothrix lobata (Sars), female: Fiftl279, Amallothrix propinqua (Sars), female: Fifth280, Arietellus aculeatus ('J'. Scott), male: '281, Arietellus plum282, Calanopia thompsoni \283, 284, Arietellus setosus Giebn
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291 ?mm 287Species of Anomalocera. Disseta. Euaugaptilus, Farrania. andArietellus.285, 288, 290-294, Anomalocera ornata Sutcliffe, female: 285, Dorsal view; 288, rostrum;290, second antenna; 291, first maxilla; 292, maxilliped; 293, secondmaxilla; 294, fifth legs.286, 287, 289, 295, Anomalocera ornata Sutcliffe, male: 286, Dorsal view; 287, urosome,lateral view; 289, right first antenna; 295, fifth legs.296, Disseta palumboi Giesbrecht, female: Fifth leg.297, Euaugaptilus hecticus (Giesbrecht), female: Dorsal view.298, Farrania frigidus (Wolfenden), female: Fifth legs.299, Euaugaptilus hecticus (Giesbrecht), female: Fifth legs.300, Arietellus simplex Sars, female: Fifth legs.
U S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. PART 4 PLATE
Species of Arietellus. Bathypontia. Calanopia. Candacia. Centropages.chiridius. caligus. and euchaeta.301, 302, Arietellus simplex Sars: 301, Fifth legs, male; 302, malformed fifth legs, female.
^03, Bathypontia minor Sars, female; Fifth legs.
->04, Calanopia minor A. Scott, female: Fifth leg.305-308, Candacia turgida, new species, female: 305, Dorsal view . lateralview; 307, basal segments of first antenna; 308, fifth309, Centropages gracilis (Dana), male: Fifth legs.310, Chiridius ormolus (Boeck), male: Fifth legs.317, Caligus thymni Dana, male: Dorsal view.323-325, Euchaeta media Giesbrecht, male: iiy Dorsal view; .; 24. fiflportion of left fifth '326, Euchaeta concinna Dana, m inal portion of left fifth327-329, Euchaeta pubera Sai irsal view, male; me, dorsal view, female;329, urosome, lateral view, female.
U. S. NATIONAL MUSEUMO O BULLETIN 100. VOL 14. PART 4 PLATE 23
SPECIES OF EUCHAETA. EUCHIRELLA. GAETANUS, AND LABIDOCERA.330, 331, Euchaeta pubera Sars, male: 330, fifth legs; 331; distal portion of exopod of leftfifth leg.332-335, Euchirella bitu.rn.iia With, male: 332, Lateral view; 333, basal portion of fourthleg; 334, fifth legs; 335, portion of end segment of exopod of right fifth leg.336, Euchirella curticauda Giesbrecht, male: Fifth legs.337. Euchirella galeata Giesbrecht, female: Urosome, dorsal view.338, 339, Euchirella maxima Wolfenden: 338, Crest and rostrum, lateral view, female; fifthlegs, male.340, 341, Gaetanus recticornis Wolfenden, female: 340. Dorsal view; 341, rostrum, lateralview.342, 343, Labidocera agilis (Dana), female: 342, Dorsal view; 343, fifth legs.544, 545, Labidocera albatrossi, new species, female: 344, Dorsal view; 345, fifth legs.
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. PART 4 PLATE
Species of Labidocera.346-350, Labidocera insolita, new species: 346, Dorsal
.Us, titi 1 : V. 3, female; 349, right first antenna.351-355, Labidocera laevidentata (Brady): 351, Dorsal vi<353, urosome, lateral view, female; 354. fifth '356-359, Labidocera minuta Giesbrecht:female; 358, fifth legs360, Labidocera nerii Kx0yer, female: Fifth361, 362, Labidocera orsinii Giesbrecht, femali
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. PART 4 PLATE 25
Species of Labidocera, Lophothrix, and Metridia.363, Labidocera pavo Giesbrecht, female: Urosome, dorsal view.364,364', Labidocera euchaeta Giesbrecht: 364, Right fifth leg, male; 364', fifth legs, female.365-369, Labidocera tenuicauda, new species: 365, Dorsal view, female; 366, dorsal view,male; 367, right first antenna, male; 368, fifth legs, female; 369, fifth legs, male.370-373, Lophothrix humilifrons Sars, male: 370, Dorsal view; 371, rostrum, lateral view;372, urosome, dorsal view; 373, fifth legs.374-376, Lophothrix lalipes (T. Scott): 374, Lateral view, male; 375, fifth legs, female; 376,fifth legs, male.377, 378, Metridia atra Esterly, female: 377, Endopod of second leg; 378, fifth legs.
U. S. NATIONAL MUSEUM BULLETIN 100. VOL. 14. p,o RT 4 P'.ATE 26>
\ 383 '
390
Species of Monacilla. Onchocalanus. Paraugaptilus. and Pareuchaeta.379, Monacilla semispina (A. Scott), male: Fifth380, Monacilla typica Sars, male: Fifth le381, Onchocalanus affinis Wit h, female: Fifth leg.382, 383, Paraugaptilus buchani Wolfenden, female: 382, Fiftspecimen.384-389, Pareuchaeta californica (Esterly): 384, Lateral viewmale; 386, genital segment, ventral view, fenfifth legs, male; 389, terminal armai f left fifth l<390-392, Pareuchaeta exigua (Wolfenden), feilateral view; 392, genital393, Pareuchaeta gracilis (Sars). female: Genital segment, lateral
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1 mm Species of Phyllopus. Pleuromamma, and Pontella.394-396, Phyllopus aequalis Sars, male: 394, Left first antenna; 395, fifth legs; 396, dorsal397-399, Phyllopus giesbrechti A. Scott: 397, Dorsal view, male; 398, fifth legs, male; 399fifth legs, female.400, 401, Pleuromamma piseki Farran, male: 403, Dorsal view; 401, fifth legs.402, 403, Pontella cerami A. Scott, male: 402, Dorsal view; 403, fifth legs.404-407, Pontella gracilis, new species, female: 404, Dorsal view; 405, rostrum; 406, secondantenna; 407, fifth legs.
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Species of Pontella.408,409, Pontella chierchiae Giesbrecht: 40s. Fifth legs, fei410-413, Po ntt'lla diagonal: r. cies, female: 410 Dorsal view; 411. nurosome, lateral view; 413, fifth leg.414, Pontella fera Dana, male: Fifth415, 416, Pontella lobiancoi (Canu): 415. Fil417-419, Pontella meadii Wheeler: 417, Dorsal view, femafifth legs, male.421-424, Pontella securifer Brady, female: 421, I iview of anothei specimen; 123, i :, dorsal view .424.fifth425, Pontella securifer Brad;, male; E
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Species of pontella.426-430, Pontella surrecta, new species: 426, Dorsal view; female; 427, urosome,lateral view, female; 428, dorsal view, male; 429, fifth legs, female;430, fifth legs, male.431, Pontella tenuiremis Giesbrecht, male: Fifth legs.432, 433, 435-440, Pontella valida Dana, female: 432, Dorsal view; 433, urosome, dorsalview; 435, rostrum, lateral view; 436, rostrum, anterior view; 437,mandible; 438, first maxilla, posterior surface; 439, first maxilla,anterior surface; 440, fifth leg.434. 441-443, Pontella valida Dana, male: 434, Dorsal view; 441, left fifth leg; 442,terminal detail of left fifth leg; 443, right fifth leg.
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0.5 mm.
SPECIES OF PONTELLOPSIS.445?449, Pontellopsis albatrc emale: 44 ; . Dorsal yfrom left side; 447, fifth li450-452, Pontellopsis armata (Giesbrecht) : 450. \female; 452, right first antenna, male.453-457, Pontellopsis bitumida, new species: 453, Dorsal viimale; 455, right first antenna, male; 456, fifth458, Pontellopsis brevis, female: Fifth459-461, Pontellopsis lubbockii (Giesbrecht)female; 461, fifth legs, male.462, Pontellopsis villosa Brady, male: I
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Species of Pontellopsis.463 4t> ; . /' . ..-. now species, female: 463, Dorsal view; 464, urosome, lateral\ iew ; 465, fifth lees.466 469, /' ..'. new species, female: 466, Dorsal view; 467, first leg; 468,tilth lees; 4''". second antenna.470 4~ ; . /' ntell psii laminata, new species, female: 470, Dorsal view; 471. urosome,
i : \ iew ; 472, second antenna; 473, masticatory base of mandible; 474, hrstleg; 475, fifth legs.476 480, P ntel la (Dana): 476, Dorsal view, female; 477, right first antenna,male; 478, urosome, dorsal view, male; 479, mandible, female; 480, fifth lees.female.
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SPECIES OF PSEUDANTHESSIUS AND SAPPHIRINA.481, 483, 484, 487, 488, Pseudanthessius pacificus, new view;condanten
482, 485. I anthessieus pan'second maxilla; 486, maxill490-493 Sapphirinadorsal vi,
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SPECIES OF PONTELLOPSIS, SCAPHOCALANUS. AND SAPPHIRINA.494?496', Pontellopsis regalis (Dana): 494, Dorsal view, female; 495, dorsal view, male;496, fifth legs, male; 496', urosome of a second specimen, dorsal view, female.497-502, Pontellopsis sinuata, new species: 497, Dorsal view, female; 498, dorsal view, male;499, urosome, lateral view, female; 500, fifth legs, female; 501, right first antenna,male; 502, fifth legs, male.503, Scaphocalanus affcnis (Sars), male: Fifth legs.504, Sapphirina lactens Giesbrecht, female: Caudal ramus.505, 506, Scaphocalanus angulifrons Sars, male; 505, Dorsal view; 506, fifth legs.507-509, Scaphocalanus brevicornis (Sars); 507, Dorsal view, male; 508, fifth legs, male;509, fifth leg, female.
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SPECIES OF SCAPHOCALANUS. SCOLECITH RICELLA. AND TEMORA.Scaphocalanus echinatus (Farran): 510, Fifth lei:, female; 511. fifthScaphocalanus insoli species, female: -"12. Drostrum, lateral view; 514, fifth515-517, Scaphocalanus medius (Sars): 515, Dorsal517, fifth legs, male.Scaphocalan us subbrevicorn is (Wolfenden
)
Scolecithricella abvssalis (Giesbrecht), female: FiftlScolecithricella auropeclen (Giesbrecht);female; 522, fifth legs, male;525, Scolecithricella minor (Brady), male: Fifth le526, Temora stylifera (Dana)
510,511,512-514.
518,519,520-524,
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Species of Scolecithricella. Pontella. Scottocalanus. Temorites.Undeuchaeta. and Bradyidius.527, Scolecithricella ovata (Farran), female: Fifth leg.528-531, Scolecocalanus spinifer, new species: 528, Lateral view, female; 529, dorsal view,female; 530, left fifth leg, female; 531, fifth legs, male.532, Pontella pulvinata, new species, female: Urosome, dorsal view.533-537, Scottocalanus farrani A. Scott, male: 533, Urosome, lateral view; 534, urosome,dorsal view; 535, crest and rostrum; 536, urosome of another specimen; 537,fifth legs.539, Temorites brevis Sars, female: Fifth legs.540, Undeuchaeta plumosa (Lubbock), male: Fifth legs.541, Undeuchaeta major Giesbrecht, males: Fifth legs of immature and mature examples.542, Bradyidius similis (Sars), male: Fifth legs.
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Species of Scottocalanus. stephos. Temora. tigriopus, Tortanus. andXanthocalanus.543-546, Scottocalanus helenae (Lubbock): 543, Lateral view, female; 544, fifth leg, female?545, fifth legs, male; 546, exopod and endopod of left fifth leg, male.547, Scottocalanus thomasi A. Scott, female: Fifth leg.548-550, Stephos perplexus, new species, male: 548, Dorsal view; 549, left fifth liright fifth leg.551-553, Temora discaudata Giesbrecht: 551, Dorsal view, female; 552, fifth553, fifth lees, male.554-559, Tigriopus incertus Smirnov: 554, Dorsal view, female; 555, second antenna, female;556, first legs, female; 557, fifth liendopod of second leg, male.560, Tortanus barbatus (Brady), female: Fifth h561, Xanthocalanus pinguis Farran, female: Fit:o