158 



EXPEDITION TO POINT BAKKOW, ALASKA. 



The species has been recorded from the Norwegian coast ami the North Atlantic. 

 MoJpadia riolacea, which occurs in large numbers off Kerguelen Island, is considered by Duu- 

 lelssen and Koren (op. cit., p. 05) to be identical M'ith this species.' 



ECHINOIDEA. 

 5. STRONGYLOCENTROTUS DROBACHIENSIS (Miill.) A. Ag 



Tear. 



Name. 



1780 

 1834 

 1851 

 1852 



1861 

 1871 

 1874 I 

 1876 



1878 

 1882 



Echinus saxalilis, O. Fabricins 



J'.chinui chlorocentrotus, Brandt 



Echinus chlorocentrotus, Brandt 



Echinus neglfctus, Forbes 



Echinus drobachiensis, Liitken 



Echinus drobachicnsis, M. Sars 



Toxopneustes drobachiensis, Lutkcn 



Echinus drobachicnsis, Mpbins 



Toxopneustes drobachiensis, Liitkeu 



titrongylocentrotus drobachiensis, v. Maren- 

 zcller. 



.Jtchinuj dr'dbaclticnsis, Stnxberg 



Echinus drobachiensis, Stnxberg 



Citations. 



Fauna Grcenlandica, Ko. 368. 



Prodromua description!*, ic., p. 204. 



Sibirische Kcise, ii, p. 34. 



In Sutherland's "Journal of a Vovaire, &c.,'' ii, Api>., i>. 



Videnek. Medial., p.24, 



Ovprsijit afNorgos Ecbinodermer, p. K. 



Yidrnsk. Meddcl., 23. p. 300. 



2te Deutsche Nordpolarfahrt, ii, p. 259. 



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



Denkschr. d. K. Akad. der Wissen., uxv, ] 



OefY. afK. Vctcnsk. Akad. FiJi-liandl.. "~<, i>. -H. 

 Tega-Kzp. Vctensk. lakt., i, pp. 703, 706, 708. 



A few dry tests were picked up on the beach near the station, during the summer of J.-N-J. 

 The living animals were dredged in very great abundance off Poiut Franklin in 13J fathoms, and 

 were also quite abundant off Port Clarence, in 7 A fathoms, on a pebbly bottom. A few were also 

 taken in about 5 fathoms, on a similar bottom, at the head of Norton Sound. 



This species is abundant all round the northern parts of both hemispheres. 



ASTEKIOIDEA. 

 6. ASTERIAS ACERVATA Stimpsoii. 



Tear. 



1861? 

 1862V 



Name. 



Citations. 



Aslerias acervatn, Stimpson j Proceed. Boston Society of Xnturnl History, viii, p. 271. 



Rather small specimens of this species, 3 or 4 inches in diameter, were washed up on the beach 

 in considerable numbers after the great gale of October 4, 1881, but none were afterwards found in 

 any of our dredging near the station. One large individual, however, was dredged at ths head of 

 Norton Sound, in 5 fathoms, on a pebbly bottom. 



This species was described by Stimpson from specimens brought by the North Pacific Explor- 

 ing Expedition from Bering Strait and the Arctic Ocean north of the Strait. My specimens havo 

 been compared with one of Stinipson's own identification in the National Museum. 



7. ASTERIAS VIOLACEA O. F. Miiller. 



Numbers of a large purple, Asterins were dredged in about 5 fathoms, on a pebbly bottom, at 

 the head of Norton Sound. 



I refer it with extreme doubt to this species as I have been unable to see any identified speci- 

 mens of riolacea or ruben.t and the literature at my command is exceedingly unsatisfactory. 



The species will probably turn out to be undescribcd, but I do not feel sufficiently familiar with 

 the group to venture on a description. It is undoubtedly closely allied to the common European 

 forms rubcns and riolacva, if, indeed, the latter be a distinct species. 



