64 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
circuit of the spire; base rounded, imperforate; aperture subovate, the 
reflected margin angular at the shoulder. Length, 5; diameter, 2 mm. 
(Dali.) 
Type in United States National Museum, No. 211904. Type locality, 
San Diego, California. 
Range. San Diego, California, to Gulf of California. 
Epitonium regiomontanum Dali, 1917 
Proceedings of the United States National Museum, 53 :481. 
Shell small, white, rather solid, with six whorls, exclusive of the 
(lost) nucleus; varices fourteen, low, rather solid, striated, not angulated, 
largely continuous over the suture, encircling about one-fourth of the 
spire, widely flatly reflected on the base, the reflection covering at least 
half the interspace, the whole giving the effect of a disk though there 
is no basal disk or cord; aperture subovate, the anterior margin some¬ 
what produced. Length, 6; diameter, 2.5 mm. (Dali.) 
Type in United States National Museum, No. 111217. Type locality, 
Monterey Bay in 30 fathoms. 
Range. Known only from type locality. 
Described as Epitonium montereyense in 1917. 
SECTION CRISPOSCALA De Boury, 1909 
Epitonium regum Dali, 1917 
Proceedings of the United States National Museum, 53 :484. 
Shell small, whitish, acute, with three smooth nuclear and seven or 
more subsequent whorls; varices nineteen to twenty, strongly anteriorly 
striated, narrowly flatly reflected, continuous over the suture and making 
about half the circuit of the spire, the anterior faces of the varices 
slightly irregularly crenulated; they are sharply angulated at the shoulder, 
giving the profile a turriculate aspect; base rounded, imperforate; aper¬ 
ture rounded, the reflected margin narrow. Length of five whorls, 9; 
maximum diameter, 4; diameter at decollation, 0.8 mm. (Dali.) 
This species is of the same general type as E. catalinae, but has more 
numerous and less expanded varices, which are obsoletely crenated. 
(Dali.) 
Type in United States National Museum, No. 206596. Type locality, 
off Point Reyes in 61 fathoms. 
Range. Point Reyes to San Diego, California. 
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