.-»() 



NILS ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. III. OPISTHOBRANCHI A ETC. 



The White Sea: Solowetzkij Island (1893, Jacobson) 3 sps. 

 The Kara Sea: Leche (1878). 



North of Siberia: Aurivillius (1887), 5 — 8 fms, clay, sand. 



Spitzbergen: Horn Sound, 40 — 60 fms, clay and stones, 5 sps. — Advent Bay, 

 20 — 40 fms, clay (7s 1868) 4 sps. Danes Gat, 7 — 10 fms, stones and alga? ( 31 A 

 1868) 1 sp. Mossel Bay, 97» fms, alga? (7, 1872) 1 sp.; D:o V/ 2 fms alga? ( 2 7, 

 1872) c. 30 sps.; D:o 9V, fms, sand ("A 1872) c, 20 sps. — Treurenberg Bay, 12 — 20 

 fms, sand and clay (1861) 1 sp. Lomme Bay, 25 — 35 fms, clay (Yg 1868) c. 30 

 sps. - N. E. of the Seven Islands, 81° 14' N. 22° 50' E., 150 m, gray mud, bottom 

 temp. + 2° C. ('"'A 1898) 3 shs. Bremer Sound, King Charles 1 Land, 100-110 m, 

 fine clay with great stones, bottom temp. — 1,45° 0. (7« 1898) 6 sps. — N. of Hope 

 Island, 77° 25' N. 27° 30' E.. 160 m yellowish brown clay, bottom temp. 1,71° C. 

 ( 2 7e 1898) 4 shs. 



Greenland: Posselt (1898) 5 — 150 fms, clay, sand, stones. Further: Upernivik, 

 70 fms, 1 sh. 53° 34' N. 52° 1' W.. 980 fms, light gray clay with stones (1871) 

 1 white sh. 63° 35' N. 52° 57' W., 43 fms, sand and shells' (1871) 2 shs. (= C. 

 alba in Posselt). 



Baffin Bay: 72° 27' N. 74° 52' W., 20 m mud (1894) 4 sps. 



East Greenland: Mackenzie Bay, 1 sp. and 1 sh. (Mus. IL, Hägg 1905). 



Genera] distribution: 



Norway: Finmarken, 30 — 40 fms, very common; the whole coast (G. O. Sars 

 1878). White Sea (Knipowitsch 1896). Spitzbergen (Pfeffer 1895; Krause 1892; 

 Knipowitsch 1901, 1902; Friele & Grieg 1901). Franz-Joseph Land (Melville & 

 Standen 1900). Kara Sea (Collin 1887). Grinnell Land (Verkrüzen 1878). — 

 Parry Islands (Sutherland 1852). East Canada (Whiteaves 1901). Depths up to 

 267 m (Friele & Grieg 1901). Clay, sand, a]ga?. 



Cylichna insculpta (Tottbn 1835) 

 (inch var. valida Leche 1878). 



Habitat: 



Kara Sea: Leche (1878, var. valida), 8 — 10 fms, sand. 



North of Siberia: Aurivillius (1887, var. valida), 5 — 10 fms, sand, stones. 



Spitzbergen: Bel Sound 5 — 12 fms (Torell) 13 sps. (one of a dark-brown colour) 

 Advent Bay, 20—40 fms, clay ('/» 1868) 12 sps. (together with C. scalpta and C. 

 Reinhardti). — Ice Fjord, 5 fms, clay, c. 20 sps. — Cross Bay, 60 fms, clay mixed 

 with stones (1861) 2 sps. — Treurenberg Bay, 12—20 fms, sand and clay (1861) 

 5 sps. 



Greenland: Posselt (1898), 70 fms. 



