252 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIY. 
lamella of which the posterior corner, when intact, bears a small 
sharp spine, behind which the varix is much attenuated and turns 
into the suture, which it crosses and becomes connected with one of 
the varices of the preceding whorl; the anterior face of the varices 
is concentrically sharply striate, and the portion which approaches 
the center of the base is shghtly flattened, although there is no basal 
disk or perforation; the space between the varices is smooth and 
polished, but under a lens shows traces of faint spiral striation, 
more or less irregular; the aperture is rounded-ovate, the peritreme 
thin and like the preceding varices; the operculum is thin, of about 
three whorls, concave and centrifugally striated, of a pale horn 
color. Height of shell, 20; of last whorl, 8.5; of peritreme, 4.5; 
maximum diameter, 6.5 mm. | 
Type.—Cat. No. 110638, U.S.N.M. Range from Monterey, Cali- 
fornia, south to the Coronado Islands near San Diego. It has been 
dredged in depths from 16 to 34 fathoms. The type-specimen was 
collected by Mr. H. N. Lowe, who dredged it at Newport, California. 
This is a not uncommon species in the dredgings, though usually 
smaller than the dimensions given above. It may be distinguished 
from 7, subcoronatum Carpenter by its more crowded, higher and 
minutely lamellose or striated varices which from the posterior ex- 
pension give the whorls a tabulate appearance. 
EPITONIUM (CRISPOSCALA) CATALINA, new species. 
Shell slender, white, turrited, imperforate, with more than seven 
adherent whorls; nucleus (lost) ; suture distinct, closed; varices (on 
the last whorl 14) continuous, making nearly one revolution around 
the axis in ascending the spire; they are flatly reflected, axially stri- 
ate, subspinose at the shoulder, giving a tabulate aspect to the 
rounded whorls. There is no basal disk on the whorl, but on the 
basal part of each reflection of the varices there is a smooth area over 
which the suture travels, and which, taken collectively, gives the effect 
of segments of a disk imposed on the varices but not on the whorl; 
below the shoulder the varices are widely reflected, extending for a 
space to the angle of reflection of the preceding varix, where it would 
seem these extensions are normally attached, covering a hollow space 
between them and the whorl, but in the type-specimen most of these 
extensions are broken away; aperture subcircular. Height of (decol- 
late) six whorls, 12.0; of last whorl, 6.0; of aperture, 2.7; maximum 
diameter, 4.5 mm. 
Type.—Cat. No. 198628, U.S.N.M. Off the south side of Catalina 
Tsland, California, in 16 fathoms, mud, near the entrance to the small 
harbor; W. H. Dall. 
This is a very interesting species, which if perfect might have, from 
the fusion of the varices, much the aspect of a Cersotrema. 
