62 



Cyclostrema willei, Friele. 

 Ci/closfrema tvillei, Friele, Xonlhavs Exp., Moll. vol. 2, 188C), p. o4, Pl. 11, tig. 19. 



Findested. Station 173 b, 300 fv. og stcation 192, 



(549 fv. 



Locality. 



(649 fatlioms). 



ytations 173 b (oOO iathoms), aud 192 



Cyclostrema profundum, Friele. 



Cydosfrema projundum. Friele, Jahrb. Deutsch. Mol. Gesellseh.. vol. 6, 1879, p. 272. 



_ _ Friele, Nordhavs E.xp., Moll, vol. 2, 1886, p. 34, Pl. 11, figs. 20-22. 



Findested. 

 120—1333 fv. 



Stationerne 192, 353 og 357. Dybde 



Locality. Stations 192, 353, and 357. Deptli 120 

 — 1333 fatlioms. 



Margarita helicina, Pbipps. 



Tniiio hclicinus, Pbipps, Vov. towards tbe North-Pole, 1774. j). 198. 



Margarita arctica, Middendorf, Reise in der aiiss. Norden u. Øst Sib., 1851, p. 203, Pl. 17, figs. 13-16. 



Trochus hellcirius, Jefifreys, Brit. Conch., vol. 3, 1865, p. 295, vol. 5, p. 201, Pl. 61, tig. 4 a. 



J farga rita helicina, G. 6. Sårs, Moll. Eeg. Aret. Norv., 1878, p. 132, Pl. III, figs. 7 og 8. 



Findested. Station 312, 656 fv. (dpdt exemplarj; 

 station 338, 148 fv. (dodt exemplar); Beeren Eiland, 18 fv. ; 

 Jan Mayen, 10 — 15 fv. ; Norskoerne, 10 — 15 fv.: Magda- 

 lena Bay, 30-60 fv. og Advent Bay, 20-30 fv. 



Margarita hdicina er en circumpolar art, som er 

 kjendt fra Grønland, Nordamorikas østkyst indtil Massa- 

 chusetts. Nordeuropa indtil De liritisko øer. Jan Mayen, 

 Spitsbergen, Franz Josefsland, Novaja Senilja, Karahavet, 

 Beringsliavet, Okotske hav, Sitka og Vancouver. Den ba- 

 thyraetriske udbredelse er — 100 fv. Fossil er den kjendt 

 fra Skandinavien, Skotland, nordlige Rusland, Canada og 

 Spitsbei'gen. 



Locality. Stations 312 (656 fathoms; dead specimen) 

 and 338 (148 fathoms; dead specimen), Bear Island (18 

 fathoms). Jan Mayen (10— 15 fathoms). Norwegian Islands 

 (10 — 15 fathoms), Magdalena Bay (30— 60 fathoms, and 

 Advent Bay (20-30 fathoms). 



Margarita lidicina is a circumpolar species, occurs 

 off Greenland, the east coast of Nortli America down 

 to Massachusetts. Northern Europe as far soutli as the 

 Britisli Isles. Jan Mayen, Spitsbergen, Franz Joset Land, 

 Novaja Semlja, in tlie Kara Sea, the Bering Sea, the Sea 

 of Okhotsk. ott' Sitka. and Vancouver I. Its batliymetrical 

 distribution is from to 100 fathoms. It is a fossil in 

 Scandinavia, Scotland. tlio nortii of Russia, Canada, and 

 Spitsbergen. 



Margarita grønlandica. Chemnitz. 

 Triichus gronlandicus, Chemnitz, Conch. Cab., vol. 5, 1781, p. 108, fig. 1671. 



— ' — Jeffreys, Brit. Concli., vol. 3, 1865, p. 298, vol. 5, p. 202, Pl. (H. tig. 5. 



Margarita gnmJandica. G. O. Sårs. Moll. Reg. Aret, Norv.. 1878. p, 133, Pl. Ill, fig. 9. Pl. XVIII, fig. 4. 



Findested. Husø, 40 fv., Beeren Eiland. 18 fv., 

 .Tan Mayen, 30 fv., Norskoerne. 10 — 20 fv.. Advent Bay. 

 20—30 fv., station 336, 70 fv. og station 359, 416 fv. 

 (dodt exemplar). 



Den er circumpolar og har omtrent samme udbredelse 

 som foregaaende. Den bathynietriske udbredelse er — 150 

 fv. P'ossil er den funden i Skandinavien. Britiske oer. 

 nordlige Rusland. Spitsbergen. Sibirien og Grønland. 



Locality. Husø (40 fathoms), Bear Island (18 

 fathoms). Jan IMayen (30 fathømsi. Norwegian Islands (10 

 — 20 fathoms), Advent Bay (20—30 fatlioms), and Stations 

 336 (70 fathoms) and 359 (416 fathoms: dead specimen). 



It is circumiiolar, and has almost the same distribu- 

 tion as the preceding species. Its l)athymetrical distribu- 

 tion is from to 150 fathoms. It is a fossil in Scan- 

 dinavia, the Britisli Isles, tlie nortli of Russia, Spitsbergen, 

 Siberia, and Greenland. 



