68 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th See. 



Eulimella gabbiana, new species 

 Plate 7, figure 20. 



Shell very small, slender and smooth, polished, with numer- 

 ous whorls; apex acute (broken in the type specimen), whorls 

 nearly flat, unsculptured ; suture appressed, indistinct ; base un- 

 flattened ; aperture ovally elongated ; outer lip sharply rounded 

 anteriorly ; inner lip concave, incrusted. 



Dimensions : — Altitude of the figured specimen, upper whorls 

 lost, 4 mm. ; maximum width, 1.3 mm. 



Occurrence : — Lower Miocene of Kern River, California, 

 locality 64. 



This species is distinguished by its small size, slender and 

 smooth form, and its long narrow aperture. 



Type: — No. 143, Cal. Acad. Sci., in the bottom of a small 

 canyon about P/i miles due north of Barker's ranch house, 

 Kern County, California. 



Named in honor of Wm. Gabb. 



Genus EPITONIUM Bolten 



Epitonium posoensis, new species 



Plate 7, figure 10. 



Shell conical, solid, with seven or eight whorls ; spire ele- 

 vated; whorls tabulated, nearly flat above, sculptured with 

 twelve strongly raised varices, which are reflexed and broad- 

 ened on top, and four or five spiral lines which are plainly 

 visible between the varices ; varices with prominent shoulders, 

 giving the whorls a tabulated appearance ; body-whorl squarely 

 angulated at the base with a keel on the angle; base flat and 

 smooth; aperture circular; outer lip thickened by the varix; 

 inner lip incrusted, smooth. 



Dimensions : — Altitude of the figured specimen, apex broken, 

 14 mm. ; diameter of the last whorl, 8 mm. 



Type : — No. 144, Cal. Acad. Sci., the lower Miocene of Kern 

 River, California, locality 65. 



Epitonium williamsoni, new species 



Plate 7, figures 9a and 9b. 

 Shell long and narrow, with about ten whorls ; spire very 

 high ; apex sharp ; whorls convex, crossed by eighteen prom- 



