Vol. IV] ANDERSON AND MARTIN— NEOCENE RECORD 85 



Dimensions: — Altitude of the type, 21.5 mm.; latitude of 

 the last whorl, 16 mm. ; length of the aperture, 17 mm. ; width 

 of the aperture, 6.5 mm. 



Type:— No. 186, and cotypes Nos. 187, 188, 189, Cal. Acad. 

 Sci., lower Miocene of Kern River, California, locality 65, on 

 the west bank of a small canyon P/4 miles northeast of Bar- 

 ker's ranch house. 



This species resembles superficially the figures of Purpura 

 lima Martyn, published in an earlier paper' and referred to by 

 Ralph Arnold in his description of Cancellaria andcrsoni. The 

 species here described differs from Cancellaria andersoni 

 Arnold, in not having axial ribbing on any of the whorls, while 

 it shows strong spiral sculpture on all of them. The surface 

 of the body-whorl is not inornate, but is crossed by strong 

 spiral threads and distinct lines of growth which give the sur- 

 face a doubtfully cancellated appearance. 



Cancellaria nevadensis, new^ species 

 Plate 8, figures 5a, 5b, 5c, and Sd. 



Shell small, solid, ovate, with five or six tabulated whorls; 

 spire moderately high ; apex subacute ; whorls angulated above 

 the middle, flat or slightly concave above, convex below, sculp- 

 tured with numerous spiral threads and irregular axial ribs; 

 the interspaces between the spiral threads vary in width and 

 frequently carry intercalary threads ; axial ribs most prominent 

 on the whorls of the spire where they form small nodes on the 

 angulations, almost obsolete on the body-whorl of most speci- 

 mens ; suture distinct, impressed ; aperture ovate ; outer lip thin : 

 canal short and wide ; columella with two plications and a small 

 anterior sulcus. 



Dimensions: — Altitude of the type, 18 mm.; maximum lati- 

 tude of the shell, 10 mm.; length of the aperture, 11 mm.; 

 width of the aperture, 4 mm. 



Type:— No. 190, and cotypes Nos. 191, 192, 193, Cal. Acad. 

 Sci., lower Miocene of Kern River, California, locality 68, on 

 the north bank of Kern River about H niile west of the 

 power plant and about 3 miles east of the Rio Bravo ranch 

 house. 



iProc. Calif. Acad. Sci., 3rd Ser., vol. 2, p. 202, pi. IS. 



