Cyclostrema willei, Friele. 
Cyclostrema willei, Friele, Nordhavs Exp., Moll., vol. 2, 1886, p. 34, Pl. 11, fig. 19. 
Findested. 
649 fv. 
Station 173 b, 300 fv. og station 192, | 
Locality. 
(649 fathoms). 
Stations 173 b (800 fathoms), and 192 
_ Cyclostrema profundum, Friele. 
Cyclostrema profundum, Friele, Jahrb. Deutsch. Mol. Gesellsch., vol. 6, 1879, p. 272. 
Findested. Stationerne 192, 353 og 357. Dybde 
120—1353 fy. 
Friele, Nordhavs Exp., Moll., vol. 2, 1886, p. 34, Pl. 11, figs. 20—22. 
Locality. 
—1333 fathoms. 
Stations 192, 853, and 357. Depth 120 
Margarita helicina, Phipps. 
Turbo helternus, Phipps, Voy. towards the North-Pole, 1774, p. 198. 
Margarita arctica, Middendorf, Reise in der aiiss. Norden u. Øst Sib., 1851, p. 203, Pl. 17, figs. 13 —16. 
Trochus helicinus, Jeffreys, Brit. Conch., vol. 3, 1865, p. 295, vol. 5, p. 201, Pl. 61, fig. 4a. 
Margarita helicina, G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 132, Pl. ITI, figs. 7 og 8. 
Findested. Station 312,. 656 fy. (dødt exemplar); 
station 338, 148 fv. (dødt exemplar); Beeren Hiland, 18 fy.; 
Jan Mayen, 10—15 fv.; Norskøerne, 10—15 fv.; Magda- 
lena Bay, 830—60 fv. og Advent Bay, 20—30 fy. 
Margarita helicina er en eirecumpolar art, som er 
kjendt fra Grønland, Nordamerikas østkyst indtil Massa- 
chusetts, Nordeuropa indtil De britiske ger, Jan Mayen, 
Spitsbergen, Franz Josefsland, Novaja Semlja, Karahavet, 
Beringshavet, Okotske hav, Sitka og Vancouver. Den ba- 
thymetriske udbredelse er 0—100 fy. Fossil er den kjendt 
fra Skandinavien, Skotland, nordlige Rusland, Canada og 
Spitsbergen. 
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 (830—60 fathoms, and 
Advent Bay (20—30 fathoms). 
Margarita helieina is a circumpolar species, occurs 
off Greenland, the east coast of North America down 
to Massachusetts, Northern Europe as far south as the 
British Isles, Jan Mayen, Spitsbergen, Franz Joset Land, 
Novaja Semlja, in the Kara Sea, the Bering Sea, the Sea 
of Okhotsk, off Sitka, and Vancouver I. Its bathymetrical 
distribution is from 0 to 100 fathoms. It is a fossil in 
Scandinavia, Scotland, the north of Russia, Canada, and 
Spitsbergen. 
Margarita grønlandica, Chemnitz. 
Trochus gronlandicus, Chemnitz, Conch. Cab., vol. 5, 1781, p. 108, fig. 1671. 
Jeffreys, Brit. Conch., vol. 8, 1865, p. 298, vol. 5, p. 202, Pl. 61, fig. 5. 
Margarita gronlandica, G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 183, Pl. III, fig. 9, Pl. XVIII, fig. 4. 
Findested. Husø, 40 fv., Beeren Hiland, 18 fv., 
Jan Mayen, 30 fv., Norskøerne, 10—20 fv., Advent Bay, 
20—30 fy., station 336, 70 fv. og station 359, 416 fv. 
(dødt exemplar). 
Den er circumpolar og har omtrent samme udbredelse 
som foregaaende. Den batbymetriske udbredelse er 0—150 
fv. Fossil er den funden i Skandinavien, Britiske ger, 
nordlige Rusland, Spitsbergen, Sibirien og Grønland. 
Locality. —Husø (40 fathoms), Bear Island (18 
fathoms), Jan Mayen (30 fathoms), Norwegian Islands (10 
—20 fathoms), Advent Bay (20—30 fathoms), and Stations 
336 (70 fathoms) and 359 (416 fathoms; dead specimen). 
Tt is circumpolar, and has almost the same distribu- 
tion as the preceding species. Its bathymetrical distribu- 
tion is from 0 to 150 fathoms. It is a fossil in Sean- 
dinavia, the British Isles, the north of Russia, Spitsbergen, 
Siberia, and Greenland, 
