66 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Genus PYRAMIDELLA Lamarck 



Pyramidella cooperi, new species 



Plate 7, figures 18a and 18b 



Shell small, turriculated, solid, with nine or ten whorls, apex 

 acute; spire strongly elevated; whorls flatly convex, narrowly 

 tabulated, sculptured with one prominent narrow groove at the 

 front margin; body-whorl rather well rounded below, with 

 short base; aperture subelliptical ; outer lip semicircular, den- 

 ticulated within; columella with one conspicuous posterior 

 plication and two less prominent anterior plications. 



Members of this genus inhabit tropical seas. 



Dimensions : — Altitude of the type, 1 1 mm. ; maximum lati- 

 tude, 4 mm. 



Occurrence : — From'the lower Miocene of Kern River, Cali- 

 fornia, locality 65. 



Type: — No. 136, and cotype No. 137, Cal. Acad. Sci., on the 

 west bank of a small canyon P/4 miles northeast of Barker's 

 ranch house, Kern County, California. 



Named in honor of Dr. J. G. Cooper. 



Genus EULIMELLA Fischer 



Eulimella ochsneri, new species 

 Plate 7, figiires 23a and 23b. 



Shell small, elongated, slender, with eight or more whorls; 

 spire high, with acute apex ; whorls slightly convex, nearly flat, 

 with narrow tabulation at the suture, ornamented with two or 

 three very faint spiral lines near the base ; the faint spiral lines 

 at the base of the whorls are not visible on some specimens; 

 suture distinct, channeled; aperture subquadrate; lips simple 

 and smooth ; body-whorl with a small umbilical chink. 



Dimensions : — -Altitude of the type, apex broken, 8 mm. ; 

 diameter of the last whorl, 3 mm. 



Occurrence: — Not rare in the lower Miocene of Kern River, 

 Kern County, California, locality 64. 



Type : — No. 138, and cotype No. 139, Cal. Acad. Sci., in bot- 

 tom of a small canyon about Wa miles due north of Barker's 

 ranch house, Kern County, California. 



Named in honor of Mr. W. H. Ochsner. 



