CLASS GASTROPODA 
77 
Crassispira montereyensis Stearns, 1871 
Proceedings, California Academy of Sciences, 5: 80; PL 1, fig. 2. 
Shell small, rather solid, elongate, slender; spire elevated, subacute; 
whorls, 7-8 moderately rounded; upper portion of larger volutions some¬ 
what concavely angulated; suture distinct; color, dark purplish brown or 
black; surface covered with rather coarse, inconspicuous, revolving costae, 
interrupted on the body whorl by rude incremental lines; middle of upper 
whorls and upper part of body whorl displaying 14—15 equidistant, longi¬ 
tudinal, nodose, slightly oblique ribs, which are whitish in the specimen 
before me (being somewhat rubbed) on the larger whorls; on the smaller 
volutions of the spire a puckering at and following the suture suggests 
a second indistinct series of nodules; aperture less than half the length of 
the shell; canal short; terminal portion of columella whitish, slightly 
twisted; posterior sinus, rather broad, rounded, and of moderate depth. 
Long., .67; lat., .24 in. (R. E. C. Stearns.) 
Type in United States National Museum, Stearns Collection. Type 
locality, Monterey, California. 
Range. Monterey, California, to Mazatlan, Mexico. 
This was described as Drillia montereyensis by Stearns. 
Genus CRYPTOGEMMA Dali, 1918 
Shell solid, fusiform, suture distinct. Canal distinct, and slightly 
recurved. Outer lip thin, generally produced. Inner lip thin and often 
with a thin layer of callus. Pillar short, straight. (Oldroyd.) 
Type. Gemmula benthina Dali. 
Distribution. Tillamook, Oregon, to Tehuantepec in deep water. 
Cryptogemma pernodata Dali, 1908 
Bulletin, Museum of Comparative Zoology, 43:266. 
Shell defective, about three whorls remaining, resembling the last 
species (Gemmnla esuriens Dali) in a general way, having the median 
vermiculate band, similar periostracum, aperture and pillar, but differing 
as follows: the whorls are separated by a deeper constriction; the fasciole 
less excavated and without spiral striae; the basal sculpture is hardly 
perceptible; the ribs are reduced to nodules in front of the suture and 
more obliquely protractive and irregular or even obsolete; the vermicular 
sculpture is more or less extended over the base. Long, of the last whorl, 
14.0; of aperture, 10.0; maximum diameter, 8.7 mm. (Dali.) 
[77] 
