a Cal Nat 3 » pteD REPORT © CANADIAN ARCTIC EXPEDITION | 1913-18 VOLUME VII: CRUSTACEA PART D: ISOPODA. By P. L. BOONE SOUTHERN PARTY—1913-16 OTTAWA THOMAS MULVEY PRINTER TO THE KING'S MOST EXCELLENT MAJESTY 1920 Issued November 10, 1920. i Report of the Canadian Arctic Expedition 1913-18. —— a VOLUME VII: CRUSTACEA. ‘Part A: DECAPOD CRUSTACEAN! S. By Mary J. Rathbun.. ...- (Issued August 18, 1919). Part B: SCHIZOPOD CRUSTACEANS. By Waldo L. Schmitt. (Issued September 22, 1919). Part C: CUMACEA, By W.. Calman,.......,..cccecc-seceeresevcdeeee tesa (in press), ‘Part D: ISOPODA. By P.L. Boone.......... anes im aetieraatacartienaes ue (In press). Part. E: AMPHIPODA. By Clarence R. Shoemaker. cer terran: ore (Issued September 7, 1920). Part F: PYCNOGONIDA.~ Leon J. Cole. ..c..2e.0.000c0c0ec eee uewnirateenels) (In press). Part G: EUPHYLLOPODA, By F. Johansen.....................-..64- Ud n preparation). : Part H: CLADOCERA. By Chancey Juday....................0065 (Issued June 28, 1920). Part I: OSTRACODA. By R. W. Sharpe.........0. 000200002000. 0204 4+. (In preparation). Part J: FRESHWATER COPEPODA. By GC. Dwight Marsh..,....(Issued April 21, 1920). Part K: MARINE COPEPODA. By A. Willey............ Tintetan . (Issued June 25, 1920). Part L: PARASITIC COPEPODA. By Charles B. Wilson........... (Issued August 6, 1920) Part M: CIRRIPEDIA. By H. A. Pilsbry.....: Pee Me Renee ee we teeasts (In preparation). REPORT OF THE CANADIAN ARCTIC EXPEDITION 1913-18 VOLUME VII: CRUSTACEA PART D: ISOPODA By P. L. BOONE SOUTHERN PARTY—1913-16 OTTAWA THOMAS MULVEY PRINTER TO THE KING'S MOST EXCELLENT MAJESTY 1920 4601 Issued November 10, 1920. Cornell University Library The original of this book is in the Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924074095377 The Isopoda of the Canadian Arctic and Adjoining Regions. By P. L. Boonst Aid, Division of Marine Invertebrates, U. S. National Museum The Isopod crustacea secured by the Canadian Arctic Expedition represent four species of well-known polar forms; namely, Arcturus baffint Sabine, Mesidotea entomon (Linnaeus), M. sabini (Kroyer), Munnopsis typica M. Sars. Mr. Frits Johansen’s field notes present interesting data on the life history of some of these species and I have therefore incorporated them verbatim in the following list. In the collections of the Victoria Memorial Museum at Ottawa are several lots of Isopoda secured in the Arctic regions by the ‘“‘Diana,”’ ‘‘ Neptune’’ and other expeditions. It has been thought advisable to include. the records of these specimens in this report. The collections of the U.S. National Museum contain valuable collections of Arctic material; namely, that secured by Dr. William H. Dall during his explorations in Alaska from 1865 to 1885, collections from the U.S. Bureau of Fisheries, the U.S. Department of Agriculture, the Revenue Marine, members of the Navy, Army and various individual collaborators, also material secured by gift or exchange from other institutions, which has likewise been examined and included in this report. On the whole, though the collection is not remarkably large, it is probably the largest and most complete for the Alaskan-Canadian Arctic region ever brought together. The following annotated catalog is intended to contain a list of all the species known to inhabit the designated region with the addition of a few which approach the boundary so closely and whose affinities are Arctic, rather than boreal, that it is highly probable that on further search their range will be found to cross it. It is intended that the synonymy cited shall be comprehensive, giving references to the original description, to good figures, and to the data of geo- graphical distribution which has necessarily been taken from the literature. The material examined by the writer embraces the entire collections of the Victoria Memorial Museum and the U.S. National Museum; but in many cases it has been necessary to take the data from the literature, especially that of the early writers, and it follows that the present writer assumes no responsibility for the identification of species so derived. Usually, however, there is no particular reason for doubting the accuracy of these identifications, except in a very few cases, to which attention is directed in connection with the discussion of the species involved. The object of this work is to sum up the known Isopod fauna of arctic North America. This has involved an examination not only of the species obtained within this area, but also of the adjacent region to the west, east and south. The result is that the work includes a summary of our present knowledge of the Isopoda for that-region of North America limited on the Alaskan shore line to the winter line of floating ice and passing southward indefinitely in deep water; northward embracing arctic Alaska and Canada and restricted on the east Canadian coast to the 60° parallel. In considering the very interesting complex of the Davis strait fauna, I have followed Dr..H. J. Hansen’s masterly treatment of the area, and include in my report only those species which have 4601—1} 4p Canadian Arctic Expedition, 1918-18 been recorded from the real cold deep sea area of Davis strait as defined by him. Those species reported from the warm area of Davis strait, whose affinities in the light of present records appear to be boreal and sub-horeal, are not included in the present paper. For consideration of these, refer to H. J. Hansen, The Danish Ingolf Expedition, Crustacea, Malacostraca, Vol. 3, Pt. 5, 1916. Likewise the many species from boreal Alaska are omitted, since these have been exhaustively discussed by Harriet Richardson, Bull. 54, U.S. National Museum, 1905, Isopods of North America. The table here given indicates the general extent of the distribution of the Isopoda of Arctic North America. No attempt has been made to represent the detailed distribution of the species since this has been given in the text, nor to discuss the intricacies of the overlapping boreal faunas. All doubtful species are omitted, only representatives of the well established Arctic fauna being tabulated. The following areas are represented in the successive columns of the table: East Asia—This column indicates those species known to also inhabit Plover island, eastern Arctic Siberia, Kamchatka, the Commander islands, and northern coast of Japan. Bering Sea—This column cites those species reported from the Bering Sea. The extensive explorations in this area by the United States Government have enriched our Arctic fauna by several new species, and also secured a vast mass of evidence sufficient to correlate the Asiatic and West American faunas. West Coast North America—This column indicates what seems to be the general meridional distribution of the true polar species along the great stretch of coast line beginning just south of the winter line of floating ice on the Alaskan shore, embracing the Aleutian chain, the coast of southeastern Alaska, the Canadian coast and associated islands, and that of the United States as far south as Monterey bay, California. Arctic Alaska—This includes the Alaskan west coast north of Hagemeister island, and the entire Arctic coast. Arctic Canada—This vast area includes the entire Arctic coast of the Canadian mainland,—also the large northern archipelago, eastward including Grantland, Ellesmereland, and Baffinland, southward to the mouth of Ungava bay. Baffin Bay—Davis straits—This column indicates those species definitely recorded either from the Baffin bay or the real cold deep sea area of Davis straits. East Coast North America—This column is similar to that of ‘‘West Coast North America’’ and indicates the general meridional distribution of the polar species along the eastern coast of Labrador, Newfoundland, southeastern Canada, and the United States as far south as New Jersey. West Greenland—It has seemed desirable to indicate the fauna of West Greenland separately from that of East Greenland, though it is interesting to note that many of the Arctic Isopoda occur on both shores; however, we find seven species recorded from West Greenland which are not known from East Greenland, likewise we find one species, Pleuroprion frigidum Hansen, known only from the type locality in eastern Greenland. Iceland and the Faeroes.—This region includes the Arctic species recorded from the harbors of Iceland and the Faeroes and the adjacent seas. The com- prehensive explorations by the Danish government have contributed a very thorough knowledge of this area. Europe—This includes the entire arctic coast of Europe, also the boreal area of the Scandinavian coast, and that of the British Isles from which Arctic species have been recorded. West Siberia—This column lists those species recorded from the eastern Kara sea and adjacent Siberian coast. 5D Isopoda 9IT * “‘(WOSUBTT) DPDZSIUD LE-S * * éx * * meee) pzobuoja DiyjoUy) 9 * * a rr ine re ns || cone OMY (rs eee Teese ce ate qoluwog PUB PIVIDN Yyiautaum snasiuoadhy)D » 6 * * * * 2k * a | se fh ce | | ceke Ih) ay | Spee IAPs sipishu sniog Ze * * * * * * * * * * * “*(saAPIS) s1pourwopgn snrhiyq +sy80y aL * * e *K * * * * * “+ (goR asf) sajhjoddiy sapiosidog * * * * * *(SIVQ “CQ *4)) D70)NUDLO Dj) pons * * * yorpoueg snupbursag ro|7eM MOTTBYS * * * * * i | rr nr || | (Cosco aurqeg 1uiffog snunjosy * “‘uesuByy wnprbrs A #8 * cGunpensgs 1yoopinu uo1sdo.ina, gd * * A | | hea qorpousg nza1d 35 4 * * “7 ""(pxoyre) vpvovunu a 9e-$62 * * “qorpauag staan) ise * * é*k “Gexgpry) Dsojnpou Is-¢ * * * * *(W2KQ) ppidsnorg pojopiulgy 81 04 e104s * ok * K ypuBig sisuajoyso vayz0pT L6T 04 e1048 * * * * * * * * **(qaAPIYI) Sas ts e¢-¢1 ‘youaq * * * * * * * * ( VT) O98T-O1 * ok * * * * * + (uosdur1g) DymryoD.q Diner OOT-§T * * * * SHOEpO UY swsuaosppo sdanzoaT 7 86¢-ZT é* é* ae fie pense: * POULO PW Pus eypoIyoS vynjnovu ff 662-018 * * * * (uosduriyg) sdao2772q Djaurooxz 3 806-T0T * * * wayxINT vjojnuaio “eysoy [esaaag|(SE—1, * * * * * 2 * re “(auuT'y) vuosd pbay ILt-% * * * * * ok * mB RR SIBG "WW vd; sisdouunzy 0L-¢ * mesue Hy DIIpUd]UI0LB Dj] AISuOUUD AT OOT * *wesme Hy tununut4o] wniuoboina) 0s-¢ * * “wesuB]y ‘voLpunjua0.6 uun py 86 * “(SMYTTBAOG) sowads __,, 1 * “(muBMIzIQ) 2iaqquy 6F8-8e * * * stress: “(Jasaeyy) psouds @8S-001 * * * rr re, ns cc (OM las SIBQ “CO 4H D7DIUIID) DuLUDT : voreury | 4verjs BollouLy £ suIOyyey BIaqIg seolsegy |puepusery|puvjpuseiy| qZION sIaeq | vpeuey | sysery | qWoN "0G sy “BY IVUIEY —syideq SoM adoing. | —puvjeo] 4seqy 4SOM qsBog ‘Keq oyoI1y o1joly 4sBo_ suueg | ureyseq — qseny uyeg 480M VOIYANV HLYON OILLOUV AO VAOdOSI AHL 4O NOLLAGIULSIG 6D Canadian Arctic Expedition, 1913-18. SYSTEMATIC CATALOGUE OF THE ISOPODA OF ARCTIC NORTH AMERICA. , ORDER ISOPODA. SuBORDER ASELLOTA. Family PARASELLIDAE. Group IANIRINI. Genus Ianira Leach. (See Hansen for synonymy.) Ianira laciniata (G. O. Sars). 1872. Ianira lacinita G. O. Sars, Vid. Selsk. Forh. Christiania, p. 92. 1899. Ianthe laciniata G. O. Sars, Crust. Norway, 2, p. 101, pl. 41. 1912. Janthe laciniata K. StmpHensen, Danmark Exped., p. 601. 1913. Janthe laciniata K. SrepHENSEN, Conspectus Crust. Meddel. om Grgn- land, 22, p. 243. 1916. Janthe laciniata Hansen, H. J., The Danish Ingolf Exped., Crust., Malacost, 3, pt. 5, p. 20. Distribution: Davis straits, West Greenland; Europe: off Molde, Norway, also off the coast of Nordland and Finmark and west of North Iceland. Localities recorded: West Greenland, lat. 66° 45’ N.; Davis straits—Ingolf Station 32, lat. 66° 35’ N., long. 56° 38’ W., 318 fathoms, temperature 3-9°; lat. 65° 45’, long. 54° 30’ W., about 200 fathoms; lat. 65° 36’ N., long. 56° 24’ W., 349 fathoms, temperature 3-2°; Ingolf Station 35, lat. 65° 16’ N., long. 55° 05’ W., 362 fathoms, temperature 3-6°; Ingolf Station 28, lat. 65° 14’ N., long. 55° 42’ W., 420 fathoms, temperature 3-5°; Ingolf Station 27, lat. 64° 54’ N., long., 55° 10’ W., 393 fathoms, temperature 3-8°; Ingolf Station 25, lat. 63° 30’ N., long. 54° 25’ W., 582 fathoms, temperature 3-3°; latitude 63° 24’ N., long. 538° 10’ W., 473 fathoms. Europe: Storeggen bank, off Molde, Norway, 400 fathoms; off the coast of Nordland and Finmark, 100 to 150 fathoms; West of North Iceland, Ingolf station 96, Lat. 65° 24’ N., long. 29° 00’ W., 735 fathoms, temperature 1-2°. ianira spinosa (Harger). 1879. Janira spinosa Hareur, Proc. U.S. Nat. Mus. 2, p. 158. 1880. Janira spinosa Harcer, Report U.S. Comm. Fish & Fisheries, pt. 6, pp. 323-324. 1886. Janthe spinosa Bovauius, Bihang til Kgl. Sv. Vet. Acad. Handl. ii, No. 15, p. 34. 1887-88. Janira spinosa HANSEN (part), Vid. Medd. naturh Foren. i Kjébn., p. 191. 1900. Janthe spinosa RicHarpson, American Naturalist, 34, p. 299. 1901. Ianthe spinosa RicHarpson, Proc. U.S. Nat. Mus. 23, p. 555. 1905. Jolella spinosa Ricuarpson, Bull. 54, U.S.N.M., p. 458, fig. 515. 1913. Janira spinosa K. StEPHENSEN, Conspectus Crustaceorum et Pycno- gonidorum Groenlandiae, Meddel. om Gronland, 22, p. 242. 1916. Janira spinosa Hansen, The Danish Ingolf Exp., Crustacea, Malacos- traca, vol. 3, pt. 5, p. 21. Range, lat. 67° 59’ N., long. 56° 33’ W., Davis straits, southward to lat. 39° 56’ N., long. 69° 45’ W.. off Martha’s Vineyard, also off Iceland. Isopoda . eee) Localities recorded: North America:—Lat. 67° 59’ N., long. 56° 33’ W., 99 fathoms, stony bottom, 1 specimen; Davis strait, Ingolf Station 31, lat. 66° 35’ N., long. 55° 54’ W., 88 fathoms; lat. 66° 34’ W., 100 fathoms, stones with . Hydroids and (Balaner ?) no algae, 2 specimens; lat. 65° 35’ N., long. 54° 50’ W.., 80 fathoms, stones with hydroids, no algae, 3 specimens; Davis Straits, Ingolf Station 29, lat. 65° 34’ N., long. 54° 31’ W., 68 fathoms. Type locality: 2 specimens of this species were collected at Banquereau by Capt. Collins of the schooner Marion, Aug. 25, 1878. They were found clinging to the cable of the schooner.” (Harger); deposited in the Yale University collections. Cat. No. 11000, U.S.N.M., 1 specimen, collected by the U. 8. Bureau of Fisheries steamer Albatross, Sta. 2969, 201 fathoms, between St. Peters Bank and Banquereau, 201 fathoms; Cat. No. 35523, 2 female specimens taken by the U. S. Bureau of Fisheries steamer Fish Hawk at Station 1154, off’ Martha’s Vineyard, 193 fathoms, Cat. No. 32706, 1 male and 1 female specimen also taken by the Fish Hawk off Martha’s Vineyard at Station 1093, in 349 fathoms. Europe: Besides it has been secured by Admiral Wande! at a plac2 northwest of Iceland, lat. 66° 16’ N., long. 26° 8’ W., 33 fathoms, temperature 0-1° and by the Ingolf southeast of Iceland, Station 4, lat. 64° 07’ N., long. 11° 12’ W., 237 fathoms, temperature 2-5°. Janira libbeyi (Ortmann). | 1900. Jolanthe libbeyi ORYMANN, Princeton Univ. Bull. 11, No. 3, pp. 39-40. 1901. Tole libbeyi ORTMANN, Proc. Acad. Nat. Sci. Phila., p. 157. 1905. - Jolella ibbeyi RicHarpson, Bull. 54, U.S. Nat. Mus., p. 463. 1912. Tanthe speciosa K. StEPHENSEN, Danmark Exp., p. 518. 1913. Janthe speciosa K. STEPHENSEN, Conspectus Crust. Meddel. Gronland, 22, p. 243. Locality recorded: Station 26, Cape Alexander, N. Greenland—type locality, 27 fms., 5 speci- mens, collected by Princeton Arctic Expedition, 1899. So far this is the only record of this species. Lanira speciosa (Bovallius). 1881. Tanthe speciosa Bovauuius, Bihang till K. Sv. Vet. Akad. Handl. VI, No. 4, p. 5-14, pls. 1-3. 1886. Ianthe speciosa Bovatutus, Bihang till K. Sv. Vet. Akad. Handl. II, No. 15, p. 35. 1900. Ianthe a Ricuarpson, American Naturalist, 34, p. 299. 1901. Ianthe speciosa Ricuarpson, Proc. U.S. Nat. Mus. 23, p. 555. 1905. Janthe speciosa RicHarpson, Bull. 54, U.S. Nat. Mus., p. 460. 1913. Janira speciosa K. StePHENSEN, Conspect. Crust. Groenlandiae Meddel. 22, p. 242. Range: Baffin bay, type locality, is the only known record Localities recorded: ‘‘The only known specimen is, as mentioned above, the one in the collections of the Royal Swedish Zoological Museum, dredged. in the Baffins bay the 26th of July, 1871, at 67° 59’ N. 56° 33’ V.L. from a stony bottom at a depth of 98 fathoms, by Dr. Joshua Lindahl, the zoologist of the Swedish arctic expedition of that year.”’ (Bovallius, 1886). 8D 1846 1847 1916 Canadian Arctic Expedition, 1913-18. Group MUNNINI. Munna Kroyer. Munna groenlandica Hansen. ? Munna fabricit Kroyer, in Gaimard, Voy. et Scand. Crust., pl. 31) figs. 1-a-2 (partim). . Munna fabricii Kroyer, Nat. Tidsskr., Ny Raekke, vol. 2, p. 380, (partim). . Munna groenlandica Hansan, The Danish Ingolf Exp., Crustacea, Malacost., vol. 3, pt. 5, p. 35, pl. 8, figs. 2a-2d. Range: Greenland, west coast, Upernavik to Godthaab, east coast, Dan- marks O, to Angmagsalik. Localities recorded: West Greenland: In the Upernavik district, latitude about 72° 47’ N., 3 specimens, secured by Commodore Ryder; at Egedesminde, latitude 68° 42’ N., 1 specimen by Mag. Traustedt; Godthaab, latitude 64° 11’ N., about 50 fathoms, Holboll, 6 specimens. East Greenland: at Danmarks—O, latitude 70° 27’ N., 3 specimens by the Ryder Expedition; at Tasuisak, latitude 67° 37’ N., 3-5 fathoms, 5 specimens by the first Amdrup Expedition, latitude 67° 4’ N., at the beach, 2 specimens by the second Amdrup Expedition; Angmagsalik, latitude 65° 30’ N., 2 specimens by Mag. Kruuze. Pleurogonium G. O. Sars. Pleurogonium latimanum Hansen. @ 1916. Pleurogonium latimanum Hanssen, Danish Ingolf Exp., Crust. Malacost., vol. 3, pt 5, p. 44, pl. 3, figs. 9a-9d. Localities recorded: Davis strait, latitude 66° 32’ N., longitude 55° 34’ W., 100 fathoms, stones with Hydroids, 1 specimen taken by Th. Holm. during the cruise of the Fylla in 1884. Group NANNONISCINI. Nannoniscella Hansen 1916. Nannoniscella groenlandica Hansen. 1916. Nannontscella groenlandica Hansen, Danish Ingolf Expedition, Crust. Malacost, vol. 3, pt. 5, p. 85 pl. 7, figs. 7a-7d, pl. 81, figs. la-1f. Distribution. Known only from the type locality. Locality recorded: West Greenland, latitude 64° 03’ N., mouth of Ameralik fjord, 5-70 fathoms, shells, 1 specimen, taken by the Ingolf; type in the Copen- hagen Museum. 1860. 1863. 1866. 1868. Group MUNNOPSINI. Family MUNNOPSIDAE. Genus Munnopsis. Munnopsis typica M. Sars. Munnopsis typica M. Sars, Chr. Vid. Selsk. Forh., p. 84 (1861). Mumnopsis typica G. O. Sars, Chr. Vid. Selsk. Forh., p. 206 (1864). eit ae typica, G. O. Sars, Nyt. Magazin for Naturvidenskaberne, p. 5. Munnopsis typica M. Sars, Chrst. Fjord Fauna, p. 70, pls. vi, vii, figs. 101-138. Isopoda 9D 1868. Munnopsis typica M. Sars, Chr. Vid. Selsk. Forh., p. 261 (1869). 1869. Munnopsis typica G. O. Sars, Nyt. Magazin for Naturvidenskaberne, p. 44. 1872. Munnopsis typica G. O. Sars, Chr. Vid. Selsk. Forh., p. 79 (1873). 1874. Munnopsis typica Bucuuouz, Zweite Deutsche Nordpolfahrt, Crust., p. 285. 1878. Munnopsis typica, Hutter, Deutsch. Acad. Wiss. Wien, XX XV, p. (14) 38 1876. Afunnopsis typica Norman, Proc. Royal Soc., XXV, p. 208. 1877. Munnopsis typica G. O. Sars, Arch. Math. Nat., II, p. 353 (253). 1877. Munnopsis typica Mizrs, Ann. Mag. Nat. Hist., (4), KIX, p. 65. 1879. Munnopsis typica Harcsr, Proc. U.S. Nat. Mus., II, p. 159. 1880. Munnopsis typica Harcmr, Report U.S. Comm. of Fish and Fisheries, Pt. 6, pp. 330-332, pl. i, fig. 11. (See Harger for synonymy). 1887-88. Munnopsis typica Hansen, Videnskabelige Meddelelser fra den naturhistoriske Forening i Kj@benhavn, p. 195. 1895. Munnopsts typica AxEL Ouuin, Akademisk Afhandling, XXII, p. 18. 1899. Munnopsis typica Sars, Crust. of Norway, II, pp. 133-134, pls. lvii-lviii. 1900. Munnopsis typica Stmppine, Ann. Mag. Nat. Hist. (7), V, p. 14. 1901. Munnopsis typica Onuin, Bihang till K. Sv. Vet.-Akad. Handl. XX VI, Afd. iv, No. 12, pp. 31-83. 1901. Munnopsis typica Ortmann, Proc. Phil. Acad. Nat. Sci., p. 159. 1901. Munnopsis typica, Ricnarpson, Proc. U.S. Nat. Mus., XXIII, p. 557. 1905. Munnopsis typica Ricuarpson, Bull. 54, U.S. National Museum, p. 486. 1909. Munnopsis typicaG. O. Sars, Sec. Arc. Exp. Fram. Videnskabs- Selskabet i Kristiania, No. 18, p. 9. 1916. Munnopsis typica Hansen, H. J., Danish Ingolf Exp., Crust. Malacost., 3, pt. 5, p. 156. The following representatives of this species were secured by the Canadian Arctic Expedition: Station 48a, off Cockburn point, Dolphin and Union strait, about 50 fathoms, sandy mud with pebbles, and no algae, Sept. 13, 1915. 11 specimens. “The Isopoda has broad, alternationg dark purple and white bands on the long body-legs, and dark purple dorsal side of body.” Johansen. I have also examined nine lots of this species in the collections of the U.S. National Museum, namely: Cat. No. 19880, Davis strait, D’Arcy W. Thomp- son, collector, 2 specimens; Cat. No. 38414, outside Hebron, Labrador, 100 fathoms, mud, Aug. 25, 1908, Owen Bryant, collector; Cat. No. 38413, halfway from cape Mugford to Hebron, Labrador, 60 fathoms, mud and sand, Aug. 25, 1908, 1 specimen; Cat. No. 38415, off Beachy island, between Flint island and cape Mugford, Labrador, 80 fathoms, soft mud, Aug. 22, 1907, 1 specimen; Cat. No. 34491, off Newport, R.I., Station 893, 272 fathoms, 1880, U.S. Bureau of Fisheries Steamer Fish Hawk, collector, 1 specimen; Cat. No. 35535, also off Newport, Rhode Island, station 878, 142 fathoms, collected by the Fish Hawk, 1 specimen; Cat. No. 35536, off Martha’s Vineyard, Station 1124, 640 fathoms, Fish Hawk, collector, 2 specimens; also Cat. No: 39217, Station 2547, South of Martha’s Vineyard, 390 fathoms, U.S. Bureau of Fisheries Steamer Albatross collector, 1 specimen, Cat. No. 17244, Kara sea, collected by the steamer Dijmph- na 1882-83, and received in exchange from the Royal Zoological Museum, Copenhagen. It has also been recorded from Grinnell land, cape Fraser, lat. 79° 44’ N.; also lat. 79° 38’ N., several places off West Greenland in the eastern part of the Baffin bay between lat. 78° 18’ N., and lat. 69° 31’ N., from 100-199 fathoms; lat. 76° 48’ N., long. 88° 39’ West. Arctic America; two places on the west coast of Baffin bay between 5 and 28 fathoms; Gaase Fjord, Ellesmere island ; from five Ingolf stations in the Davis strait as follows: Station 31, lat. 66° 54’ N., long. 55° 34’ W., 88 10D Canadian Arctic Expedition, 1913-18. fathoms, temperature 1-6°; Station 32, lat. 66° 35’ N., long. 56° 38’ W., 218 fathoms, temperature 3-9°; Station 35, lat. 65° 16’ N., long. 55° 05’ W., 362 fathoms, temperature 3-6°; Station 28, lat. €5° 14’ N., long. 55° 42’ W., 420 fathoms, temperature 5-5°; Station 27, lat. 64° 54’ N., long. 55° 10’ W., 393 fathoms. é West Greenland: Olrik bay, 15-20 fathoms, Murchison sound, 25 fathoms, clay; Granville bay, 20-40 fathoms; lat. 71° 10’ N., long. 58° 56’ W., 199 fathoms, clay; Umanak fjord, 122 fathoms, hard light gray clay; lat. 69° 31’ N., long. 56° 1’ W., 100 fathoms. East Greenland: lat. 77° 31’ N., long. 18° 24’ W., 275 m.; Franz Josef fjord, cape Weber; lat. 73° 32’ N., long. 24° 38’ W., 100-110 fathoms; lat. 72° 28’ N., long. 21° 48’ W., 180 m.; lat. 72° 01’ N., long. 23° 03’ W., 32-40 m., mud; lat. 70° 43’ N., long. 22° 29’ W., Scoresby sound, Hurry inlet, 70 m., mud; lat. 70° 50’ N., long. 22° 33’ W., Scoresby sound, Fame island, 23-25 m.; Scoresby sound, 5-25 fathoms; lat. 69° 44’ N., Turner sound, about 3 fathoms; lat. 69° 25’ N., long. 20° 1’ W., 167 fathoms. ; Europe: In the Kara sea, 20-100 fathoms, and eastwards to long. 78° 40’ East; near the south coast of Novaya Zemlya, about 50 fathoms; Franz Josef land, 2-30 fathoms; Barents sea, 62-180 fathoms; several places at Spitzbergen, northwards to lat. 81° 14’ N., 5 and 8 down to 157 fathoms; northwest of Beeren Eiland 658 fathoms; between Beeren Eiland and Norway 217 fathoms; in the sea west of Norway at three stations in the cold area, 350 to 417 fathoms; and one station in the warm area; along the whole coast of Norway from Christiania fjord to Vadso, 60-400 fathoms; and from Skager Rak between Jutland and Norway in depths from 110-340 fathoms; North of Iceland in Skagestrand bay, 119 fathoms, temperature 2-9°; east of Iceland, lat. 63° 15’ N., long. 9° 35’ W., 270 fathoms; nearer to Iceland off Seydis fjord, 185 fathoms, Nord fjord, East Iceland 35-55 fathoms; between Iceland and the Faeroes, Ingolf station 4, Lat. 67° 07’ N., long. 11° 12’ W., 237 fathoms, temperature 2-5 °; also Station 2, lat. 62° 04’ N., long. 9° 22’ W., 262 fathoms, temperature 5-3 1 specimen; North of the Faeroes, Ingolf station 138, lat. 63° 26’ N., long. 7° 56 and W., 471 fathoms, temperature 0-6°, 1 specimen. Suborder FLABELLIFERA. Family CYMOTHOIDAE. Subfamily AEGIDAE. Genus Aega Leach. Aega psora (Linnée). 1761. Oniscus psora Linnanus, Fauna suecica, 2nd es., p. 499, No. 2054. 1767. Oniscus psora Linnarus, Syst. Nat., 12th ed., 1, p. 1060. 1780. Ontscus psora O. Fasricius, Fauna Groenlandica, p. 249. 1815. Aega emarginata “Luacu, Trans. Linn. Soc. London, 11, p. 370. 1818. Aega emarginata Lmacu, Dict. Sci. Nat., 12, p. 349. 1825.