32 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Type in United States National Museum. Type locality, U.S.S. 
“Albatross” Station 3048, off coast near Gray’s Harbor, Washington, 
in 52 fathoms. 
Range. Straits of Juan de Fuca to Columbia River entrance. 
Trophon cepulus Sowerby, 1880 
Thesaurus Conchyliorum, Trophon, 61; PI. 404, fig. 14; PI. 405, fig. 27. 
Testa alba, gracile bulbiformia laevis; spira acuminata, anfractibus 
declivibus, subangulatis, varicibus tenuibus subnumerosis, superne angu- 
latis; ultimo anfractu subventricoso, in canalem angustum recurvum; 
longiusculum terminanti. 
This species differs from T. clathratus in being more bulb-shaped, 
having the canal narrow, long and recurved, with shorter bulk for the 
last whorl, and having the varices thinner and more numerous. (Sow¬ 
erby. ) 
Type in British Museum? Type locality, Bering Sea? 
Range. Bering Sea and Aleutian Islands. Fossil: Pleistocene of 
North Japan, at Volcano Bay. 
Trophon cymatus Dali, 1902 
Proceedings of the United States National Museum , 24:548. 
A variety cymata has the angle obsolete and the whorls rounded. (Dali.) 
Type in United States National Museum, No. 109091. Type locality, 
Pribilof Islands, Bering Sea. 
Range. Known only from type locality. 
Trophon elegantulus Dali, 1907 
Plate 31, fig. 10 
Miscellaneous Collections, Smithsonian Institution, 50:165. 
Shell thin, pellucid-white, with a nebulous brown band in front of the 
suture, on the last whorl in front of the periphery and a third on the canal ; 
elongate, acute, slender, the whorls of the spire rotund, looking like the 
spire of a Scala ; suture distinct, with two nuclear (eroded) and five sub¬ 
sequent whorls; varices 10 to 12, very thin, sharp, reflected, patulous near 
the suture, but not coronate or spinose; early whorls with three or four 
distant obscure, spiral threads which later become obsolete; the surface 
also finely closely spirally striate; aperture elongate-oval, outer lip thin, 
reflected; body with a wash of transparent callus, which is continued on 
the pillar as a thin elevated lamella continuous with the left-hand margin 
of the rather elongated and recurved canal; siphonal fasciole imbricate; 
interior of the aperture white, showing the color bands. Long, of shell,' 
[330] 
