200 CALIFORNIA ACADEMY OF SCIENCES [Proc. 30 Ser. 



Cancellaria condoni n. sp. 



Plate XV, Figs. 49 and 50. 



Shell of moderate size, i-i>4 inches in length, }4-}^ inch wide; spire 

 high; whorls angular, slightly sloping above; surface ornamented with strong 

 revolving lines, with wide interspaces, crossed by strong varical ridges form- 

 ing tubercular nodes on the upper angle of the whorls; inner lip crusted, 

 bearing 2 spiral folds on the columella. 



This species is apparently related to the C. oregoiie?tsis 

 Conrad described from the Astoria beds of Oregon. 



Ocairrence. — This species is represented by four speci- 

 mens from the Lower Miocene beds of Kern River. 



Cancellaria simplex n. sp. 



Plate XV, Figs. 51 and 52. 



Shell moderate in size, simple and inconspicuously marked, resembling 

 C. pacifica, but having a less elevated spire, and generally shorter whorls. 

 The spiral lines and longitudinal ridges are both more reduced and the 

 width of the shell is greater. The inner lip is well crusted. The length of 

 the largest shell found is nearly 2 inches. 



Ocairrence. — Lower Miocene beds of Kern River, with 



the precedin 



Cancellaria vespertina n. sp. 



Pl-^vte XVI, Figs. 77 and 78. 



Shell not large, fusiform, angulated, bearing tubercules, longitudinally 

 ribbed; spire elevated, but not high; whorls slightly sloping above; aperture 

 ovate, inner lip crusted; canal short; surface ornamented more conspicuously 

 with vertical ridges, crossed by faint spiral lines, seen more plainly on the 

 lower portion of last whorl. 



The species resembles somewhat C. iirceolata Hds. but is 

 less robust, with a higher spire and less prominent spiral 

 ridges on the columella, besides having strong tubercules on 

 the angles of the whorls. 



Occurrence. — The species is not abundant, but occurs in the 

 Coalinga Beds west of Coalinga, Mount Diablo Range. 



