326 University of California Publications in Zoology — [Vou. 14 
Occurrence.—A single specimen from the Fishing Grounds* west 
of the Golden Gate was obtained by the Survey at a depth of 3 fathoms. 
Range.—Drake’s Bay to San Pedro, California (Dall). 
RISSOLIDAE 
Barleeia Clark 
Barleeia subtenuis Carpenter 
Barleeia subtenuis Carpenter (1863), p. 656; Tryon (1887c), p. 393, pl. 60, 
fig. 73. 
Description.—This species was described by Tryon as follows: 
“*Thin, subpellucid, corneous-chestnut; with 4 normal whorls, flatly convex, 
with distinct suture; lip acute.’’ 
This species is reported by Carpenter as occurring at the Farallon 
Islands. A single worn specimen was dredged by the Survey outside 
the Golden Gate which may possibly represent this species. 
Range.—Farallon Islands to San Diego California (Carpenter). 
CERITHIIDAE 
Cerithiidea 
Cerithidea californica (Haldeman) 
Plate 39, figures 8a and 8b 
Cerithium californicum Haldeman (1840-1845), no. 1. 
Cerithium sacrata Gould, Carpenter (1863), p. 655; Tryon (1887a), p. 162, 
pl. 33, figs. 69-72. 
Cerithidea californica, Dall (1892), p. 277; Arnold, R. (1903), p. 296. 
Description.—Arnold (19038) described this species as follows: 
‘¢Shell turreted; apex decollated; whorls nine or ten, slightly convex, orna- 
mented with three or four spiral ridges and numerous transverse ridges, the 
two sets varying in prominence; suture impressed, distinct; aperture subquad- 
rate; outer lip effuse, thickened, broadly rounded below, and slightly produced 
in a columellar beak; inner lip straight above this beak.’’ 
Carpenter (1863) reports this species from San Francisco Bay ; 
although it is not found among the Survey collections, it is known to 
occur within San Francisco Bay along the shores of Lake Merritt and 
in the brackish waters near Belmont and Mill Valley. 
Range—Baulinas Bay to Mazatlan, Mexico (Tryon). 
Bittium Leach 
Bittium eschrichti (Middendorff) var. montereyense Bartsch 
Bittium filosum Carpenter, Arnold, R. (1903), p. 292; Blankinship and 
Keeler (1892), p. 153. 
Bittium eschrichti var. montereyense Bartsch (1911), p. 387. 
