vl “Sy >. 28 bk taes ep ES TC 
Shell with 3 smooth brown nuclear and 5 subsequent thin — 
white whorls separated by an unusually deep suture; varices 10, 
narrow, rounded, continuous up to the spire which they encircle 
about half way, but not expanded at the suture into which they 
dip; the whorls are slightly flattened above the shoulder, but 
there is no corresponding angle or spine on the varices; length 
15.5, diameter 6 mm. 
21:0267 Epitonium colpoicum Dall. Gulf of Cal. 
21:0268 Epitonium pazianum Dall. La Paz. 
21:0269 Epitonium hexagonum Sby. 1844. S. Cruz, Cal.; Panama. 
Varices 6; shell pure white, smooth, regular in its shape, 
solid; length 14, diameter 6 mm. 
21:0270 Epitonium propehexagonum Dall. Gulf Cal.; Mazatlan. 
21:0271 Epitonium eutaenium Dall. Gulf Cal, as 
21:0272 Epitonium apiculatum Dall. Baja Cal.; Panama Bay. 
21:0273 Epitonium compradora Dall. Baja Cal. 
21:0274 Epitonium cylindricum Dall. Near La Paz. 
21:0275 Epitonium centronium Dall. Gulf Cal. 
21:0276 Epitonium tiara Cpr. 1856. Panama. 
A form ranging from Catalina Island, Cal., to Todos Santos 
bay, Baja Cal.; with 12 varices, is doubtfully referred here by 
Dall. 
21:0277 Epitonium columbianum Dall. Off Columbia river, Ore. 
Shell acute, yellowish white, with 9 whorls exclusive of the 
(lost) nucleus; varices 18, low, rounded, more or less striated, 
without any angulation, continuous over the suture into which 
they dip and nearly encircling the spire; the type has interspaces 
more or less finely axially striated, but the southern specimens 
seem quite smooth; base and aperture rounded, anterior margin 
of latter slightly angular; length 21, diameter 7.5 mm. Ranges 
south to Point Abreojos, Baja Cal. 
21:0278 Epitonium sawinae Dall, 1907. (2740). 
Varices 16-19, more or less flatly reflected on the base; Van- 
couver Island; San Diego, Cal. 
21:0279 Epitonium sawinae ? catalinense Dall. Catalina I. 
Shell with a small 3-whorled nucleus, smooth and white, 
and 7 and a half subsequent whorls; varices 22-24, not spinose 
or angular, not regularly continuous over suture, with anterior 
faces of varices finely lamellose or deeply striated; base rounded 
with a minute umbilical perforation in adult; aperture nearly 
circular; length 13.5, diameter 6 mm. 
21:0280 Epitonium montereyense Dall. Monterey bay, Cal. 
Shell small, white, rather solid, whorls 6, exclusive of the 
(lost) nucleus; varices 14, low, rather solid, striated, not angu- 
lated, largely continuous over the suture, encircling about 1- 
fourth of spire, widely flatly reflected on base, the reflection cov- 
ering at least half the interspace, the whole giving the effect of 
a disk tho there is no basal disk or cord; aperture subovate, an- 
terior margin somewhat produced; length 6, diameter 2.5 mm. 
Found in 30 fathoms. 
