38 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
siderable size, which commence gradually in front of a rib and terminate 
on the succeeding one, two or three on the upper whorls, five or six on the 
last, neither set continued upon the beak. Whorls six, with a broad shoul- 
der near the suture, angular, the last two-thirds the length of the shell, 
ventricose above, the lower half terminating in a slender beak, a little re¬ 
curved. Aperture half the length of the shell, elliptical; lip angular pos¬ 
teriorly, a little everted, sharp and simple; pillar with a slight intrusion at 
the commencement of the canal; interior pale flesh-color. (Gould.) 
Type in Boston Academy of Science. Type locality, Puget Sound. 
Range. Victoria, British Columbia, to off the Columbia River, Oregon. 
Trophon smithi Dali, 1902 
Plate 33, fig. 14 
Proceedings of the United States National Museum, 24:542. 
Shell much resembles T. stuarti in general, but differs by more slender 
whorls with a more constricted suture, relatively wider varices, and the ab¬ 
sence of any spiral sculpture. It has six to eight varices, very thin, wide, 
and sharp with high, strongly recurved spines at the shoulder. The canal 
is strongly recurved, and imbricating remnants of old canal ends are notice¬ 
able on the siphonal fasciole. Length, 47; width, 23 mm. (Dali.) 
Type in United States National Museum, No. 122582. Type locality ? 
Range. Pribilof Islands, Bering Sea, to Santa Barbara, California. 
Trophon stuarti E. A. Smith, 1880 
Plate 33, fig. 13 
Proceedings, Zoological Society of London, 481; PI. 48, fig. 6. 
Testa breviter fusiformis, alba. Anfractus 7, superne planati et angulati 
lateribus plams, costis late lamelliformibus, aliquanto obliquis, erectis, su¬ 
perne ad angulum valde sursum productis dextrorsumque curvatis, costis 
transversis (in anfr. superioribus 2-3, in ultimo 4) a:quidistantibus, et 
supra longitudinalibus continuis instructi. Apertura irregulariter ovata, 
in erne in canalem producta. Canalis curvatus, retrorsus, aperturam fere 
asquans. Columella leviter arcuata, callo tenui extus libera induta. Labrum 
expansum, costa ultima lamelliformi extus munitum. Long., 53; diam., 21; 
ong. apert., 31; lat. intus, 10 mm. (Smith.) 
This is a pure white shell, remarkable on account of the thin lamellae 
IC - 1 a om it. At the upper part, at the angle of the whorls, these are 
iuc l prolonged upwards, hollow on one side, ridged on the other, and 
ciirve o the right. Of the spiral lirae, that at the angle is rather stouter 
an ie rest. Upon the upper whorls they are proportionally more elevated 
i upon the last, and with the longitudinal lamellae, form a coarse reticu- 
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