170 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



by a thick callus, which renders the peristome continuous and forms 

 an acute ang-le with the outer lip posteriorly. The parietal callus and 

 columella form a strongly sigmoid curve. 



Fig. 4. — VlTRINELLA (DOCOMPHALA) STEARNSI. (1, TOP VIEW: h, BASAL VIEW; C, SIDE VIEW. 



The type and three young individuals are part of the Stearns Col- 

 lection and are entered as Cat. No. 74011, U.S.N.M., and come from 

 Monterey, California. 



The type has 4^ whorls and measures: Greater diameter, 3.8 mm.; 

 lesser diameter, 3 mm.; altitude, 1.5 mm. 



VlTRINELLA (DOCOMPHALA) BERRYL new species. 



Shell small, semitransparent, lenticular, with the upper part only 

 slightly more convex than the base. Nepionic whorls forming a little 

 more than one and two-thirds turns, smooth, and moderately convex. 



Fig. 5.— VlTRINELLA (DOCOMPHALA) BERRYI. a, TOP VIEW. 6, SIDE VIEW; C, BASAL VIEW. 



The portion following the nepionic part is crossed on the upper surface 

 by quite regularly spaced, sublamellar riblets^ which become weaker 

 as the shell increases in size, and disappear completely after one and 

 one-half turns; the remaining part of the upper surface being marked 

 by weak incremental lines onl3^ Sutures well marked. Periphery 



