100 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 
BUCCINUM CASTANEUM FLUCTUATUM Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 327. 
Pribilof Islands to Unimak Pass and the Shumagin Islands, Alaska, in 
30 to 56 fathoms. 
BUCCINUM CASTANEUM TRIPLOSTEPHANUM Dall, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 327 ; vol. 24, pi. 37, fig. 9, 1902. 
Kyska and Amchitka Islands, Aleutians, in 8 to 11 fathoms. 
BUCCINUM CASTANEUM INCISULUM Dall, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 327. 
Western Bering Sea. 
BUCCINUM PICTURATUM Dall, 1877. 
'Proc. Cal. Acad. Sci., vol. 7, p. 8; Proc. U. S. Nat. Mus., vol. 24, pi. 37, fig. 
8, 1902. 
Aleutian Islands eastward to Bristol Bay and Kodiak Island, Alaska, 5 to 
60 fathoms. 
BUCCINUM SIMULATUM Dall, 1907. (Plate 10, fig. 4.) 
Smithsonian Misc. Coll., vol. 50, No. 1727, p. 150. 
Petrel Bank, Bering Sea, 43 to 54 fathoms. Also northern .Japan. 
BUCCINUM OCHOTENSE Middendorff, 1848. 
Sibirische Reise, p. 235, pi. 10, figs. 1, 2. 
Arctic Ocean north of Bering Strait and the Okhotsk Sea. 
BUCCINUM SIGMATOPLEURA Dall, 1907. (Plate 12. fig. 6.) 
Smithsonian Misc. Coll., vol. 50, No. 1727, p. 144. 
Commander and Attu Islands, Bering Sea, in 135 fathoms. 
BUCCINUM ROSSELLINUM Dall, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 327. 
Southeast of Chirikoff Island, Alaska, in 695 fathoms. 
BUCCINUM STRIGILLATUM Dall, 1891. 
Proc. U. S. Nat. Mus., vol. 14, p. 186 ; vol. 17, pi. 27, fig. 9, 1894. 
Fuca Strait (178 fathoms) to San Diego (822 fathoms) and Guadelupe 
Island. 
BUCCINUM STRIGILLATUM FUCANUM Dall, 1907. (Plate 12, fig. 12.) 
Smithsonian Misc. Coll., vol. 50, p. 152. 
Straits of Fuca and Oregon coast. 
BUCCINUM SERICATUM Hancock, 1846. 
Ann. Mag. Nat. Hist., vol. 18, p. 328, pi. 4, fig. 7. 
Arctic Ocean. Circumboreal. 
BUCCINUM NORMALS Dall, 1885. 
Rep. Polar Exp. Pt. Barrow, p. 179, pi. 3, fig. 1. 
Arctic Ocean from Point Barrow to Kotzebue Sound. 
BUCCINUM PHYSEMATUM Dall, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 328. 
Bernard Harbor, Arctic coast, west to Point Barrow and south to Bristol 
Bay, Alaska. 
