66 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Type in United States National Museum, No. 198628. Type locality, 
south side of Catalina Island, California. 
Range. Forrester Island, Alaska, to San Diego, California. 
Epitonium tabulatum Dali, 1917 
Proceedings of the United States National Museum, 53 :482. 
Shell slender, acute, thin, dull white, with two and a half smooth 
nuclear and twelve or more subsequent whorls; varices sixteen, thin, 
sharp, well-reflected, anteriorly striated, with a blunt angle at the shoulder, 
behind which the varix is somewhat concave, giving a tabulate profile 
to the whorls; the varices more than half encircle the spire, being con¬ 
tinuous over the spire; in perfect specimens there is a very thin calcareous 
outer layer to the shell; base rounded, aperture rounded, the reflected 
margin narrow. Length, 18; diameter, 7.5 mm. (Dali.) 
Type in United States National Museum, No. 109569. Type locality, 
San Pedro, California. 
Range. San Pedro, California, to Coronado Islands. 
SECTION GLOBISCALA De Boury, 1909 
Epitonium orcuttianum Dali, 1917 
Proceedings of the United States National Museum, 53:484. 
Shell small, white, acute, with two smooth, short, nuclear and six 
subsequent whorls; varices ten to twelve, narrow, erect, with a narrow 
reflection and an angle or even a small spine at the shoulder, not continuous 
over the suture, the anterior surface smooth, the base imperforate. Length, 
6.5; diameter, 3 mm. (Dali.) 
Type in United States National Museum, No. 273998. Type locality, 
San Diego Harbor, California. 
Range. Known only from type locality. 
Epitonium zephyrium Dali, 1917 
Proceedings of the United States National Museum, 53 :485. 
Shell white, polished, solid, conic, with about five whorls exclusive of 
the (lost) nucleus; varices, nine, low, continuous, and bridging the suture, 
encircling about one-third of the spire in ascending to the apex, with 
smooth interspaces; varices smooth in front and without spines or angu¬ 
lation; base rounded, imperforate, without disk or cord; aperture sub- 
ovate with narrow margin somewhat expanded in front and at the suture. 
Length, 11.5; diameter, 6 mm. (Dali.) 
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