NORTHWEST COAST MARINE SHELLBEARING MOLLUSKS. 95 
Section LIMATOFTJSTJS Dali, 1918. 
AULACOFUSUS TROPHIUS Dali, 1919. ‘ (Plate 10, fig. 9.) 
Proc. U. S. Nat. Miis., vol. 56, p. 319. 
Eastern Bering Sea south of Pribilof Islands (27 fathoms) south to San 
Nicolas Island, California (1,100 fathoms). 
AULACOFUSUS TAHWITANUS Dali, 1918. 
Proc. U. S. Nat. Mus., vol. 54, p. 228. 
Off Tahwit Head, Washington, in 178 fathoms. 
AULACOFUSUS MORDITUS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 319. 
Gulf of Georgia, 60 to 200 fathoms. 
AULACOFUSUS TIMETUS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 318. 
Bering Sea, off Unalaska, in 19 fathoms. 
‘AULACOFUSUS DIMIDIATUS Dail, 1919. 
Proc. U. S. Nat., Mus., vol. 56, p. 319. 
Off Tillamook Bay, Oregon, in 786 fathoms. 
AULACOFUSUS SEVERINUS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 320. 
Off Pigeon Point and Monterey Bay, California, in 278 to 296 fathoms. 
AULACOFUSUS PULCIUS Dali, 1919. 
Proc. U. S., Nat. Mus., vol. 56, p. 318. 
Arctic Ocean, north of Bering Strait (Healy). 
AULACOFUSUS GEORGIANUS Dali, 192/. (Plate 8, fig. 3.) 
Gulf of Georgia, in 60 to 200 fathoms. 
AULACOFUSUS HALIMERIS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 320. 
British Columbia to San Diego, California, 60 to 822 fathoms. 
AULACOFUSUS TEOMBINUS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 321. 
Pribilof Islands, Bering Sea, in 36 fathoms. 
Subgenus Anomalosipho Dautzenberg and Fischer, 1912. 
ANOMALOSIPHO MARTENSI Krause, 1885. 
Arch. f. Naturg., vol. 51, p. 287, pi. 18, fig. 18. 
Plover Bay, Bering Strait, 20 fathoms. 
ANOMALOSIPHO ADONIS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 316. 
Straits of Fuca south to San Diego, California, in 175 to 822 fathoms; 
Northern Japan, 25 to 508 fathoms. 
ANOMALOSIPHO CONULUS Aurivillius, 1885. 
Vega Exp. Vet. Arb., vol. 4, p. 354, pi. 13, fig. 6. 
Arctic Ocean north of Bering Strait. Circumboreal. ? 
