se eee 
fective) nucleus; varices 11-12, sharply ee riakad an- 
gular at the shoulder, continuous over the suture, and making see 
about half the circuit of the spire; base rounded, imperforate; 
aperture subovate, reflected margin angular at shoulder; length | 
5, diameter 2 mm. 
21:0291 Epitonium tabogense Dall. Near Taboga I., Panama Bay. 
21:0292 EKpitonium catalinae Dall, 1908. 1470. 
Catalina Island, to San Diego, Cal. 
21:0293 Epitonium regum Dall. Off Pt. Reyes, and San Diego, 
Cal. 
Shell small, whitish, acute, with 3 smooth nuclear and 7 or — 
more subsequent whorls; varices 19-20, strongly anteriorly stri- 
ated, narrowly flatly reflected, continuous over the suture and 
making about half the circuit of spire, the anterior faces of 
varices slightly irregularly crenulated; they are sharply angulated 
at shoulder, giving the profile a turriculate aspect; base rounded, 
imperforate; aperture rounded, reflected margin narrow; length 
of 5 whorls 9, maximum diameter 4, diameter at decollation “ 
0.8 mm. 
21: 0294 Epitonium orcuttianum Dall. San Diego, Cal. 
Shell small, white, acute, with 2 smooth, short nuclear and 
6 subsequent whorls; varices 10-12, narrow, erect, with a narrow 
reflection and an angle or even a small spine at shoulder, not 
continuous over suture, anterior surface smooth, base imperfor- 
ate; length 6.5, diameter 3 mm. 
21:0295 HEpitonium bialatum Dall. West Mexico. 
21:0296 Epitonium zephyrium Dall. San Diego, Cal. _ 
Shell white, polished, solid, conic, with about 5 whorls ex- 
clusive of the (lost) nucleus; varices 9, low, continuous, and 
bridging the suture, encirclng about 1-third of spire in ascending ~ 
to apex, with smooth interspaces; varices smooth in front and 
without spines or angulation; base rounded, imperforate, with- 
out disk or cord; aperture, subovate with narrow margin some- 
what expanded in front and at suture; length 11.5, diameter 6 mm. 
21:0297 Epitonium basicum Dall. Gulf Cal.; Panama. 
21:0298 Epitonium roberti Dall. Gulf Cal. 
21:0299 Epitonium rhytidum Dall. Galapagos Islands. 
21:0300 Epitonium zeteki Dall. Panama. 
21:0301 Epitonium imbrex Dall. Panama. 
21:0302 Epitonium thylax Dall. Panama. 
21:0303 Scalaria aciculina Hinds, 1943. Central Amer. 
21:0304 Scalaria vulpina Hinds, 1843. Cent. Amer. 
21:0305 Scalaria crassilabris Sby. 1847 (non von Koenen, 1885). 
Probably Philippine Islands—-wrongly reported from Maz- 
at] an. 
21:0306 Scalaria gracilis Sby. 1844. Philippines. 
Its reference to the west coast of America is probably an 
error. M (348, 1057). 
21:0307 Cirsotrema funiculata Cpr. 1857 (non Watson, 1883). 
Mazatlan. 
