230 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Type in United States National Museum. Type locality, U.S.S. “Alba¬ 
tross” Station 3202, off California coast, in 382 fathoms. 
Range. ’ Off Monterey, California, 204-382 fathoms. 
Chrysodomus smirnius Dali, 1919 
Plate 12, fig. 2 
Proceedings of the United States National Museum , 56:322. 
Shell of moderate size, acute, livid purple-brown, with a semitrans- 
lucent whitish overlayer, and a thin dehiscent olivaceous periostracum; 
nucleus small, irregularly swollen, of about one whorl, with about five 
subsequent whorls; the earlier two or three whorls have four or five low, 
wide, fiat spiral cords with obscurely channeled interspaces, these rapidly 
become obsolete and on the last whorl appear quite smooth except for 
fine, silky, incremental lines; suture distinct, somewhat appressed; aper¬ 
ture wide, ovate, angular behind, the outer lip expanded, white, the throat 
dark brown, the body with a thin glaze which extends to the pillar, which 
is twisted and attenuated; the canal short, wide, somewhat recurved; 
operculum normal. Height of shell, 50; of last whorl, 39; of aperture, 30; 
max. diam., 26 mm. (Dali.) 
Type in United States National Museum, No. 130418. Type locality, 
United States Fish Commission Station 3461, in Straits of Juan de Fuca. 
Range. Nunivak Island to Straits of Juan de Fuca. 
Chrysodomus nuceus Dali, 1919 
Plate 12, fig. 3 
Proceedings of the United States National Museum , 56:322; 66: PI. 4, fig. 3. 
Shell small for the genus, solid, yellowish, rather acute, with six 
whorls exclusive of the (lost) nucleus, suture distinct, narrow, deep; 
spiral whorls flattish behind the periphery at which there is an obscure 
angle; in front of this are a few obscure spirals, indicated by color rather 
than elevation in the type-specimen; incremental lines inconspicuous 
rather rude; aperture white, outer lip sharp, slightly expanded; body and 
pillar with a thick white enamel; canal short, recurved, with a strong 
fasciole. Height of shell, 62; of last whorl, 50; diameter, 35 mm. (Dali.) 
Type in United States National Museum, No. 151429. Type locality, 
Cook’s Inlet, Alaska. 
Range. Arctic Ocean to Cook’s Inlet, Alaska. 
[230 1 
