62 NILS ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. V. PROSOBRANCHIA. 1 DIOTOCARDIA. 
powitsch 1901”, 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. 20.5, 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, alge, clay. 
Margarita cinerea (CoutHouYy 1839) 
(inel. var. striata BRODERIP & SOWERBY). 
PIA Migs! 28-00 ;0PKBAteSsAlE RT ANSSA 
Habitat: 
West coast of Norway: Dröbak, Stormeja, 60 fms (Lovén & Torell) 1 sp., h. 
5.3; ap. 2.4; d. 6.2; wh. 5; spiral keels 2 primary + 3 secondary; angular and um- 
bilical keel as well as longitudinal plications strong. — Tromsö, 20 fms (Goöés & 
Malmgren) 1 sh.; Kalfjord, 50 fms (G. & M.) 2 shs, max. h. 7.2; Kvalsund, 20 fms, 
rocks (G. & M. 1861) 1 sp., hh. 12.1; ap. 6; dj I1T:o (angular keeltfeeplesmany spiral 
keels, base with coarse spirals), Fig. 31; Grötsund, 5—80 fms, clay (G. & M. 1861) 
6" sps, max. h. 9.6; ap. 4.5; d. 9.8; wh. 6; 2 primary spiral keel ontlevdth vlron 
the first wh., Fig. 5; Ulfsfjord, 25—50 fms (G. & M. "10 1861) 12 sps, max. h. 13:2; 
ap. 6.1; d. 12.3; 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 striza; longitudinal lines well defined; Kjosen, 
25—40 fms, elay (G. & M. 1861) 19 sps, max. h. 12; ap. 5.2; d. 11.7; wh. 6; Karlsö, 
low water (”/s 1861) I sp. 
Finmark, without definite locality (Sparre Schneider) a few sps, max. h. 12.1; 
ap. 5.8; d. 114; wh. 6/2, Hig. 3; D:or(Loven) i sps, max. hy Ste;rap artid erste 
wh. 5”4, Fig. 4. — Hammerfest, 60—100 fms, sand, shells, 5 shs. — Kv&a&nangen, 
15—60 fms (Cleve) 9 sps, max. 1. 8.6; d. 7.6 (Mus. U-.). 
Murman Coast and Kola Peninsula: Jeretik, 11 fms (Herzenstein 1887) 1 sh., 
h. 7.5. — Subowski, 14 fms, sand (Sandeberg '"/» 1877) 2 sps, max. Bh oT.71; ap. 3.e; 
d. 7.9; wh. 54 — Waidaguba, 1 mile off the coast (Sandeberg ”"/s 1877) 4 shs, 
100]2)P: la ek kr BY AST Ol Sä Wu (O 
W. of Nova Zembla: 73” 21' 34" N., 53” 20' E., 30 fms (Knipowitsch 1893) 2 sps, 
max. Hl 2ssmap) 10; di 21; wh6/4 var Istriata! = KostinfsNarnd (ER omENSS): 
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. multilirata Mörch), Fig. 36. p 
