74 NILS ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. V. PROSOBRANCHIA. 1 DIOTOCARDIA. 
120 fms, type and var. intermedia (Leche 1878). — Siberia, 4—10 fms (Aurivillius 
1887). — Spitzbergen, 123—125 fms, type (Friele 1879), 68.5 m, type, and 9—14 m, 
var. albula (Knipowitsch 1901”, 1902). — Jan Mayen, 70—95 fms, type (Friele 1878). 
— Iceland, var. islandica (Odhner 1910). — Between Hebrides and Faroe Isles, 170 
fms, fragments, 440 fms, living sp. (Jeffreys 1882). — Greenland (Mörch fide Posselt 
& Jensen 1899). — East Canada, 10—40 fms, type and var. bella (Whiteaves 1901). 
— New England, Fig. 22 (Gould & Binney 1870); 208 fms, var. bella (Verrill 1883); 
12—487 fms (Verrill 1885). — Behring Sea to 55 fms, type and var. albula (Dall 
1875; Crosse 1877; Aurivillius 1887). — Aleutian and Sitcha (Dall 1875). Depths 
to 487 fms. Clay, sand, stones. 
Solariella cincta (PHirieei 1836). 
(= Trochus amabilis JEFFREYS 1865.) 
Habitat: 
Shetland, 3 sps (Jeffreys), max. h. 6.4; ap. 2.9; d. 6; wh. 6. 
General Distribution: 
Shetland (Jeffreys 1865). — Between Hebrides and Faroes, 170--440 fms 
(Jeffreys 1883). — Between Shetland and Faroes, 150—286 m (Simpson 1910). — 
France, 495—2020 m (Locard 1899). — Golfe de Gascogne, 510 m; off Spain, Portugal 
and Morocco, 460—2115 m (Locard 1898). — Off Portugal, 220—770 fms (Jeffreys 
1882, Nobre 1905). — Azores, 155—2101 m (Jeffreys 1882, Dautzenberg 1889, Locard 
1898). — West Indies and Florida, 193—888 fms (Dall 1889:). — E. off Tobago, 880 
fms (Dall 1889"). 
var. affinis JEFFREYS 1883. 
PlIDNNHeNSSE 
Habitat: 
Storeggen, Norway, 140 fms, shingles (v. Yhlen) 1 sp., h. 6.5; ap. 3.2; öl HS 
wh. 6. 
General Distribution: 
Norway: Storeggen and Florö, Bergen, 100—200 fms (Friele 1874; G. O. Sars 
1878). Shetland (Jeffreys 1865) to Azores (Jeffreys 1882) together with the type. 
