52 



NILS ODHNKR, NORTHERN AND ARCTIC INVERTEBRATES. 111. OPISTHOBRANCH1A ETC. 



Kara Sea: Leche (1878), 5 — 70 fms, clay and sand. 

 North of Siberia: Aurivillius (1887), 85 fms, clay. 



Spitzbergen: Advent Bay, 20 — 40 fms, clay (Ys 1868) 7 sps. (together with C. 

 Reinhardt! and C. insculpta). — Swedish Foreland, King Charles' Land, 12 — 20 in, 

 fine blackish gray clay (Ys 1898) 1 sp. ; D:o 78° 40' N. 27° 10' E., 14—16 m, fine 

 blackish gray sand, stones, clay and alga?, bottom temp. + 0,9° C. (Ys 1898) 2 sps. 



N. of Hope Island, 77° 25' N. 27° 30' E., 160 m, yellowish brown clay, bottom 

 temp. — l,7i° a ( 2 Y« 1898) 9 sps. 



Greenland: Umanak, 250 fms, 1 sh. — 53° 34' N. 52° 1' W., 980 m, light gray 

 clay with stones (1871) 1 sh. 



Baffin Bay, 199 fms, clay and stones (1871) I sh. (L. 9,9 mm); D:o 227 m, 

 hard gray clay (1871) 1 sh. (L. 4 mm); D:o 71° 42' N. 73° W., 15— 30 m, sand with 

 stones (1894) 3 sps. 



General distribution : 



Norway: Vadsö 50—60 fms; Kjosen 16—20 fms (G. 0. Sars 1878); Tromsö 

 (Aurivillius 1886); Varangerfjord (De Guerne 1886); Altenfjord 20 fms (Friele & Grieg 

 1901). — North Atlantic, 5 local. 20-127 fms (Friele & Grieg 1901). — White Sea 

 (Wagner 1885). — Spitzbergen (Reeve 1855). — Greenland (Posselt 1898). — Behring 

 Sea (Krause 1885). Depths 12 — 980 m. Clay, sand, stones, alga?. 



Cylichna discus Watson 1886. 



Distribution: North Atlantic. 8 local. 412 — L 163 fins (Friele & Grieg 1901). — Coasts of Portugal 

 304— »94 fms (Friele & Grieg 1901). - Culebra Island, West Indies. 390 fms (Watson 1886). 



Diaphana hyalina (Turton 1834). 

 Habitat: 



The Baltic: Kiel (Möbius) 2 sps. 



West coast of Sweden: Gullmarn, alga? (Loven) c. 20 sps. ; D:o 50 — 70 fms, clay 

 (Lindahl) 1 sh. Strömstad (Hanson) 1 sp. — Skagerrack, 336 fms (Lindahl) 3 shs. 

 Norway: 1 sh. (Düben) without definite locality. 

 Kara Sea: Leche (1878), 2 — 10 fms, sand, clay. 



Greenland: Posselt (1898)15 — 120 fms, clay, sand, stones, algae. Further: 

 Godthaab 64° 29' N., 80 fms sand (Amondsen 1863) 1 sp. — Norsouak, 5 -20 fms 

 (Amondsen) 1 sh. 



General distribution: 



Norway: Not uncommon along the whole south and west coast to Vadsö in 

 shallow water, to 50 fms (G. O. Sars 1878). - - North Atlantic 107 fms (Friele & Grieg 

 1901). — Murman coast, White Sea (Herzenstein 1893). Franz-Joseph Land (Mel- 

 ville & Standen 1901). — Iceland (Mörch 1868; Verkrüzen 1872). — Greenland (Mörch 



