EXPEDITION TO POINT BARROW, ALASKA. 



157 



One small Pentacta was dredged in the rich haul off Point Franklin, August 31, 1883, and, as 

 well as can be made out in its present condition, it belongs to this species. 



The species has been recorded from Massachusetts Bay to Labrador and Greenland, from 

 Spitsbergen,, and on the European coast as far south as Denmark and Great Britain. 



2. LOPHOTHURIA FABRICII (D. & K.) Verrill. 



Year. 



1780 

 1788 

 1834 



1851 

 1857 



1857 

 1875 

 1878 

 1SS2 



Name. 



Citations. 



Holothuria squamata, O. Fabriciui Funn. Gnenland., 348. 



Atcidia ffjuamatd, Pallas Nova Ada Petropolit.ana, ii. p. 241, tali.vii. figs. 34-37. 



. 'fin :, i i-i .'':t,i,,i ,1. :, '-, I'.iaii.lt ' Prodroimis dcscrintiouis auhmilium ub IT. Mertensio obnerva- 



tmuni. liecucil ucs acton de la seance pnbliquu de I'acadenjie 

 inipiiriale des sciences du St. P6tersbourg, p. 247. 

 . '.i ,.]:<! I Sibhisehe Ilcise, ii, p. 40. 



Cucieria nitchmisis, Stiinpaon Crustacea and Echiuodcniiuta of the Pacific Coastof North Aroer- 



i<-u, t'niui Jour, ol' Bnt. Hoc. nf Xat. Hist., vi, ]). to. 



7 'M'? "x /Vl'. /",/, I. iil Kin Vidensk. Meddel., p. 13. 



Piatut fabrieii, Lutkeu (.Ycminnl list.) Arctic Manna], p. 184. 



J'tolui fabrieii, v. llaren/.eller Denksclir. d. K. Akad. d. Wisseuclmften, xxxv, pp. 359. 388. 



Psolus fabric! i.Stuxbei K Vcga-Expeditioneus TeteiukapUgalakttageber, i. p. 713. 



Dredged in great abundance off Point Franklin in 13.J fathoms, and also dragged up on cod- 

 lines in about 18 or 20 fathoms off the month of Plover Bay, Eastern Siberia. 



This species has been recorded from Greenland, south to Massachusetts Bay, from Bering 

 Sea (St. Paul's Island, Brandt tcste Liitken), Sitka (Brandt), and the Arctic Ocean north of Bering 

 Strait (Stuxberg). 



3. MYRIOTROCHUS RINKII Steenst. 



Year. 



Name. 



Citations. 



Iflirintrochut rintii, Ktc onstnip 



( Chirodota brevis, Huxley 



filyriotrochus rinkii. Lutl,<-n , 



'7-f'v n'viA-'V, Packard 



chug rink'd, Milken 



'/if.v rhlkii, .Miil)ins 



vi'ivtroclufs i-i.ik-ii, Liitken 



yrii'lrochus riiik-U, Stuxiii.1 1 ^ 



1851 

 1832 



1857 

 ]Sfi7 

 1871 

 1874 

 1875 

 1878 



l./riotroehtti rinkii, Stuxberg 



18fc2 Myriotroehui rintii, DanielssenandKoren. 



Vidcnst. Meddel., p. 55. pi. iii, fijis. 7-10. 



Appendix to Sutherland's "Journal of a Voyage to Baffin's Bay 



and Uarrow Strait," ii, p. ccxi. 

 Vidensk. Meddel., p. 22. 

 Memoirs Host. fSociet. Nat. ITist., i, p. 209. 

 Vidensk. Meddel., 23, p. 306. 

 2te Deutscho Nordpolarfahrt, ii, p. 258. 

 (Nominal list.) Arctic Manual, p. 184. 

 Oefversigt af Kongl. Vetonskaps-Akademicns Forliandlingar, 35, 



p. 28. 



Vega-Exp. Yetenslj. lakt., i, pp. C95, ct ncq. 

 Den Norske Nordhavs-Expedition, vi, Zoiilogi, p. 28, pi. v, figs. 1-4. 



This species was dredged in abundance off the station, on the muddy bottom, interspersed with 

 patches of mud and sand mixed, in 2| to 15 fathoms. 



It has heretofore been reported from Greenland (Steenstrup, Liitken), Labrador (Packard), 

 and Nova Zeinbla (Stuxberg). [? Wellington Channel (Sutherland).] 



Liitken considers the Chirodota brevis of Huxley to be this species, but Danielsseu and Koren 

 consider that as Hnxley in his description says nothing of the calcareous wheels being peduncn- 

 lated it must be considered as a distinct species (= Oligotrochus vitreus M. Sars), for which they 

 propose the name Myriotrochus brevis. 



4. ? TROCHOSTOMA BOREALE (M. Sars) Dan. and Ko. 



Year. 



1K.-.8 

 1861 



Name. 



Molpadia borealis, M. Sara 



Molpadia borealiv, M. Sarn 



- /na (Jfatyadia) brtrral?, Daniels- 

 sen and Koren. 



Citations. 



Forhandl. i Vidensfc. Selsk. i Christiania, p. 173. 



Overslgt af Norgea Echinoderiner, p. 110. pis. 12, 13. 



Den Norsko Nordhavs-Expedition, vi, Xoo'Iogi, p. G4, pi. i, tips 



A single specimen was picked up on the beach near the station, in July, 1882. The perforated 

 calcareous plates appear to have the perforations smaller in proportion than those li.uuiTil by Sars 

 and Danielssen and Koren, but in the absence of more specimens, and especially of identities! 

 material for comparison, I cannot venture to pronounce it different. 



