44 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Type in United States National Museum, No. 110649. Type locality, 
in 50 fathoms off entrance to San Diego Harbor, California. 
Range. Known only from type locality. 
The adult is at least three times the length above given. The soft parts 
do not envelop the shell. The dried animal shows through its translucency 
the bases of three white gizzard plates which it is impossible to extract, 
owing to the fragility of the shell. It is possible, however, to see that the 
plates are long, narrow, straight, parallel-sided, and very large for the size 
of the animal. The plates in Hatninca are quite different, so that, not¬ 
withstanding the general similarity of the shells, the present species cannot 
be referred to the genus Haminea. (Dali.) 
Family PHILINIDAE 
Genus PHILINE Ascanius, 1772 
Shell ovate or squarish, thin and fragile, smooth, spirally striate or 
punctate, or latticed, translucent, pale-colored; consisting of few loosely 
convoluted whorls, which are entirely open from below; spire sunken; 
aperture very large, broadly effuse below, the outer lip retracted joining 
a wide sinus above. Columella thin, arcuate. (Tryon and Pilsbry, Manual 
of Conchology .) 
Type. PInline aperta Lamarck. 
Distribution. Indies, Greenland, Norway, Britain, Mediterranean, 
Korea, Borneo, North Pacific. Fossil: Eocine . . . . 
Philine sinuata Stimpson, 1850 
Shells of New England, 51: PI. 1, fig. 7. 
P. testa minuta, ovata, alba, pellucida, longitudinaliter striata; spira 
conspicua; apertura antice dilatata. Long., .07; lat., .05 poll. (Stimpson.) 
Shell minute, ovate, white, pellucid, longitudinally striate; spire con¬ 
spicuous; aperture anteriorly dilated. Length, .07; breadth, .05 in. 
(Stimpson.) 
Type in Boston Society of Natural History. Type locality, Broad 
Bay, Boston Harbor, in 4-7 fathoms. 
Range. Port Clarence, Bering Strait; also Atlantic. 
Philine polaris Aurivillius, 1885 
Vega Expeditionens, 4:380; PI. 12, figs. 21, 22; PI. 13, fig. 18. 
Testa tenuissima, fragilis, pellucida, oblongo-ovata. Anfractibus 3-4 
apertura ampla, ad basim expansa, supine contracta, labro externo magis 
[ 44 ] 
