204 BULLETIN 68, UNITED STATES NATIONAL MUSEUM. 



nuclear whorls inflated, very stronfj'ly rounded, weakly contracted at 

 the sutures, appressed at the summit, marked by numerous, very 

 retractive, lines of growth, and on the first three whorls by strongly 

 incised spiral lines, of which 6 occur upon the first, 17 upon the second. 

 25 upon the third wdiorl between the sutures, while on the last whorl 

 they are less strongly expressed and more numerous. Periphery and 

 base of the last whorl inflated, well rounded, marked like the space 

 between the sutures of the last whorl. Aperture broadly ovate; pos- 

 terior angle acute; outer lip thin, decidedly expanded anteriorly; 

 columella short, strongly curved, revolute, reenforced by the base and 

 provided with a deep-seated fold at its insertion. 



The type (Cat. no. 206915, U.S.N.M.) and eight specimens come 

 from San Pedro, California. The t3^])e has five post-nuclear whorls 

 and measures: Length (3 mm., diameter 3.5 mm. 



ODOSTOMIA (EVALEA) LUCASANA, new species. 



Plate 26, fig. 2. 



Shell broadly oval, light yellow. Nuclear whorls deeply obliquely 

 immersed in the first of the succeeding turns. Post-nuclear whorls 

 inflated, weakly contracted at the sutures, appressed at the summits, 

 the first marked by several slender strongly incised spiral lines, the 

 remaining with numerous very fine closely crowded, w^avy, spiral 

 striations. Suture well impressed. Periphery and base of the last 

 whorl well inflated, marked like the space between the sutures. 

 Aperture very large, very broadly ovate; posterior angle acute; 

 outer lip thin; columella stout, strongly curved, reflected, reenforced 

 by the base and provided with a strong fokl at its insertion. 



The type (Cat. no. 16220, U.S.N.M.) comes from Cape St. Lucas, 

 Lower California. It has five post-nuclear whorls and measures: 

 Length 4.7 mm., diameter 3.2 mm. 



ODOSTOMIA (EVALEA) PHANEA Dall and Bartsch. 



Plate 23, fig. 5. 



Odostomia (Evalea) phanea Dall and Bartsch, Proc. U. S. Nat. Mus., vol. 33, 

 1907, p. 528, pi. 48, fig. 7. =Odostornia (Evalea) gouldi Dall and Bartsch, 

 Mem. Cal. Acad. Sci., 1903, p. 282, pi. 1, fig. 15, not Odostomia (? va.r.) gouldii 

 Carpenter, Ann. Mag. Nat. Hist., 3d ser., vol. 15, 1865, p. 30 (=Odostomia 

 (Amaura) gouldi Carpenter, of the present paper) . 



Shell elongate-ovate, subdiaphanous to milk-white, stout and shin- 

 ing. Nuclear whorls small, deeply immersed in the first of the suc- 

 ceeding turns. Post-nuclear whorls rather high between the sutures, 

 well rounded with scarcely an indication of a shoulder at the summit, 

 separated by well-marked sutures. Periphery and the rather long 

 base of the last whorl well rounded. The first two whorls are regu- 

 larly closely spirally striated, in the third striation becomes enfee- 



