58 NILS ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. V. PROSOBRANCHIA. 1 DIOTOCARDIA. 
max. d. 12.7 (var. 2 c—a); D:o, 3—6 fms (1864), alge, 1 sh., D:o, 30—40 fms, stones, 
zoophytes (Torell) numerous sps, max. d. 18 (var. 2 c), Fig. 20. — D:o, Recherche 
Bay, between Reindeer Point and Fox Glacier, 90 m, stones with fine, grayish blue clay 
(/7 1898), 2 sps, max. d. 10.5 (var. 2 a). — Skans Bay, 15 fms, elay ("/+ 1873), 18 
sps, max. d. 16 (var. 2 a); shell in sculpture like M. obscura, but radula typical. — 
Ice Fiord, without definite locality, 15—70 fms, stones (1861) many sps, max. d. 
15.5 (vars2 aj; D:oj 50 fms, fine elay (Torell) Insp:ssOreen Bay) S--200fimsiclay 
with stones and alge ('/s 1868) 12 sps, max. d. 15.4 (var. 2 a—2 ec); Advent Bay, 
30 fms, clay (Torell) 1 sp.; D:o, 5—10 fms, elay ("/& 1868) 8 sps, max. d. 19.853 wh. 
6 4 (var. 2 a); Safe Bay, 30—50 fms, bluish elay (""/€ 1864), 6 sps, max. d. 15 (var. 
1 a—2 a); Cape Thordsen (Villander 1870) 3 sps, max. d. 15.1 (var. I a—2 a). — 
English Bay, 40—60 fms, stones, 8 sps, max. d. 16.3 (var. 2 a). — Kings Bay, 30— 
40 fms, clay with stones ("'/s 1868) 3 shs (var. 2 a); D:o, 40--60 fms, 13 sps, max. 
d. 13.4. — Cross Bay, 2 fms, clay (1861) many sps; D:o, 60 fms, elay with stones, 
1 sp. (var. 2 a); D:o, 30—200 fms,; 3 sps, max. d.-16.5 (var. I a=?2 a); D:0o,; 2 fms, 
many sps, max. d. 12 (var. I a—1 c). — Seven Ice Mountains, 30 fms, stones, 4 sps, 
max. d. 17 (var. 2 a). — Magdalena Bay, 20 fms, sand (Torell) 2 sps, max. d. 17; 
D:o, 4—10 fms, stones, alg&e (Torell) 3 sps, d. 15.4 (var. 1 a); D:o, 20 fms, sand 
(57 1864) 3 sps, max. d. 17 (var. 2a). — Kobbe Bay, 2—6 fms, sand; alg&e (1861) 
many sps, max. d. 18.6 (var. 2 a—2 c—1 a), Fig. 18. — Danes Island, Virgo's har- 
bour, 79” 43' N., 10” 52 E., 25—30 m, gray clay, Laminarie ('"/s 1898) many sps 
(var. 2 a—1 c). — Danes Gat, 7-—10 fms, stones with alge (''/s 1868) 3 sps, max. d. 
15.4 (var. 2 a—2 c—1 c). — Amsterdam Island, 12 fms, stones ("”/s 1861) 1 sp., d. 
12.4 (var. 2a). — Smeerenburg Bay, 4—10 fms, alge, rocks ('”/s 1868) many sps, 
max. d. 19.5 (var. 2 ce); D:o, 7026 fms,; 4sps,umax. dj l27 (fara): o2sttims 
stones, clay (1872) 1 sp., d. 9.8 (var. 2 a); D:o, 90—110 fms, stones, elay (1861) 3 
sps, max. d. 13.5. — Hackluyts Headland, 20 fms, red alg&e (1858) 1 sh.; D:o, 16— 
20 fms, elay (1861) numerous sps. max. d. 15.6 (var. 1 a—1 b—2 a), Fig. 23. 
Spitzbergen, North coast: Fairhaven, between Inner Norwegian Island and Pol- 
hem harbour, 15 fms, sand (””/s 1872) 3 sps (var. 2 cec); D:o, on the shore opposite 
Inner Norwegian Island, 2—3 fms, rocks with alg&e (”'/s 1872) 6 sps, max. d. 20 (var. 
2c); D:o, 10—30 fms, sand, clay; also in running water in the glacier bay (1872) 
many sps, max. d. 14.6 (var. 2 c—1 a). — Foul Bay, 15 fms, sand ("”/s 1872) 12 sps, 
max. d. 14. — Norwegian Islands, 15— 20 fms, stones, sand ('"/s 1872) numerous sps, max. 
d. 17.5 (var. 2 a). -— Cloven Cliff, 12—20 fms, stones, alge (Torell 1858) numerous 
sps, max. d. 18 (var. 2 a). — 80” N., 137 30' E., 20 fms. ("/6 1861) 2 spsi — Red Bay 
(1861) many sps, max. d. 18.5 (var. 2.c). — Liefde Bay, 3—5 fms, alge, stones, clay 
(2?/s' 1868) many 'sps, max. d. 14.7 (var. '!2 c—1 a); D:o, 10—30 fms, clay, I sh d. 
11.7; D:o, 10—15 fms ('/o 1868) 8 sps, max. d. 14 (var. 2 a—2 ec); D:o; 20—30 ms; 
clay with stones ('/» 1868) many sps, max. d. 14 (var. 1 a—2 a); Liefde Bay, inlet, 
140 m, stones, red alg&e, 1 sp., d. 9 (var. 1 a). — Wijde Bay, 30 fms, fine clay (1861) 
2 sps, max. d. 18. — Mossel Bay, 2—12 fms, alg&e, Lithothamnium, sand, stones 
(1872—73) many sps, max. h. 17.5; d. 19.5 (var. 2 a—2 c).. Off Mossel Bay, 12 fms, 
