158 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
defined, somewhat profound; apex acute, the anterior whorl composing 
two-thirds the length of the shell; surface marked with distinct lines of 
growth, and sometimes rising into folds near the suture; coarse revolv¬ 
ing lines surround it, which, with folds, form a net-work; aperture half 
the length of the shell, oval; outer lip sharp, slightly crenulated by the 
revolving lines; inner lip arched with three inconspicuous, oblique folds, 
of which the middle one is largest; a thin coating of enamel spreads upon 
the anterior whorl in mature specimens; base sub-channeled. Length, 
11/20; breadth, 7/20 in. (Gould.) 
This was first described by Mr. Couthouy under the name of C. bucci- 
noides, a name previously given to a species from the Pacific by Mr. 
Sowerby; on which account Dr. Jay has since applied to it the name 
of its first describer. (Gould.) 
Type in State Collection, No. 25, Society Cabinet, No. 2368, Boston 
Society. Type locality, Massuchetts Bay. 
Range. Arctic Sea to San Diego, California. Circumboreal. 
Admete couthouyi laevior Leche, 1878 
KongligS Svenska Vctenskaps Akademie Handlingenn , 16:43. 
Har inga eller endast antydningar till tvarveck. Long., 22J4 ; lat., 
llj /2 mm. (Leche.) 
Shell larger than the typical, smoother; suture not as distinct; whorls 
rounded. 
Type in? Type locality, Arctic. 
Range. Arctic Ocean to Sea Lion Rock, Washington, and off San 
Juan Islands, Puget Sound. 
Admete couthouyi gracilior Carpenter, 1866 
Gabb, Paleontology of California, 2:50. 
C. t. elongata, gracili, elegantissima; anfr. nucleosis ii, majoribus, 
valde declivibus, laevibus, apice immerso; norm, v tumentibus, superne 
vix subangulatis, suturis valde impressis; costis radiantibus x rotundatis, 
ad basim obsoletis, interstitiis undatis, majoribus; lirulis spiralibus exiguis, 
subdistantibus, supra costes et interstitia eleganter transeuntibus, postice 
ii minoribus, in medio primum iii, postea vi crebrioribus, circea basim 
attenuatam vi lineis distantibus; apertura subquadrata, antice dilatata; 
labro acuto; labio inconspicuo; columello plicis ii minoribus, declivibus, 
antice torta plicae tertiae simulante, sed vix emarginata. Long., .35; long, 
spir., .21; lat., .16 in. (Carpenter.) 
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