62 NILS ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. V. PROSOBRANCHIA. 1 DIOTOCARDIA. 



powitsch 190P, 1902, d. 19.5); Krause 1902, d. 18.5, var. umbilicalis; type only on 

 the west coast, Prince Charles Foreland, d. 12.5; Friele 1878 and 1886). — Jan Mayen 

 (Friele 1878). - E. Greenland (Dall 1886; Hägg 1905). - W. Greenland to 160 fms 

 (Posselt & Jensen 1899). — Grinnel Land, 82° 29' N. (Smith 1877). — Jones Sound 

 and North Devon, 4 -60 m (var. umbilicalis, d. 20. ß, Grieg 1909). — Parry Islands, 

 type and var, umbilicalis (Sutherland 1852). — Cumberland Sound (var. umbilicalis, 

 d. 22.3, Pfeffer 1886). — Northumberland Sound (var. umbilicalis. Reeve 1855). — 

 East Canada (Whiteaves 1901). — New England (Gould & Binney 1870). Depths 

 to 160 fms. Stones, sand, algae, clay. 



Margarita cinerea (Couthouy 1839) 

 (inch var. striata Broderip & Sowerby). 



PI. 4 tigs. 28—37; PI. 5 tigs. 1—5; PI. 7 figs. 1-4. 

 Habitat: 



West coast of Norway: Dröbak, Stormeja, 60 fms (Loven & Torell) 1 sp., h. 

 5.3; ap. 2.4; d. 6.-^; wh. 5; spiral keels 2 primary + 3 secondary; angular and um- 

 bilical keel as well as longitudinal plications strong. — Tromsö, 20 fms (Goes & 

 Malmgren) 1 sh, ; Kalfjord, 50 fms (G. & M.) 2 shs, max. h. l.-i; Kvalsund, 20 fms, 

 rocks (G. & M. 1861) 1 sp., h. 12. i; ap. 6; d. 11. o (angular keel feeble; many spiral 

 keels, base with coarse spirals). Fig. 31; Grötsund, 5—80 fms, clay (G. & M. 1861) 

 6 sps, max. h. 9. '3; ap. 4.5; d. 9.8; wh. 6; 2 primary spiral keel on the 4th, 1 on 

 the first wh.. Fig. 5; Ulfsfjord, 25-50 fms (G. & M. ,o 1861) 12 sps, max. h. 13.2; 

 ap. 6.1; d. 12.^; wh. 7; 2 primary spiral riblets on the 4th wh. ; on the upper wh. 

 3 primary and 4 secondary riblets; angular and umbilical keels strong ; base flattened 

 or somewhat convex, with or without striae; longitudinal lines well defined; Kjosen, 

 25—40 fms, clay (G. & M. 1861) 19 sps, max. h. 12; ap. 5.2; d. 11.7; wh. 6; Karlsö, 

 low water i^U 1861) 1 sp. 



Finmark, Avithout definite locality (Sparre Schneider) a few sps, max. h. 12.i; 

 ap. 5.o; d. 11.4; wh. 6^2, Fig. 3; D:o (Loven) 7 sps, max. h. 8.3; ap. 4.0; d. 8.3; 

 wh. 5 Fig. 4. — Hammerfest, 60—100 fms, sand, shells, 5 shs. — Kvsenangen, 

 15-60 fms (Cleve) 9 sps, max. 1. 8.<'>; d. 7.^ (Mus. U.). 



Murman Coast and Kola Peninsula: Jeretik, 11 fms (Herzenstein 1887) 1 sh., 

 h. 7.5. — Subowski, 14 fms, sand (Sandeberg *';n 1877) 2 sps, max. h. 7.7; ap. 3.6; 

 d. 7.!»; wh. 5^/4. — Waidaguba, 1 .mile off the coast (Sandeberg 1877) 4 shs, 

 max. li. 8.5; ap. 4.8; d. 8.7; wh. 6. 



W. of Nova Zembla: 73= 21' 34" N., 53° 20' E., 30 fms (Knipowitsch 1893) 2 sps, 

 max. h. 21.7; ap. 10; d. 21; wh. 6%, var. striata. — Kostin sharr (Leche 1878), 

 sculpture : on the upper part of the whorls 5 equally strong keels, on the base finer 

 ones; no angular and an obsolete umbilical keel; max. h. 17; ap. 8; d. 16.5 ( = Leche's 

 var. miiltilirata Mörcli), Fig. 36, 



