80 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Skr. 



EXPLANATION OF PLATE 2 



Fig. la. Crassatellites grandis Gabb, XL The specimen figured is from 

 California Acad. Sci. Locality 183. 



Fig. lb. Crassatellites grandis Gabb, XI. View showing hinge of 

 specimen figured as Fig. la. 



Fig. 2. Crassatellites uvasana Gabb, X2. Figured specimen from Cal. 

 Acad. Sci. Locality 245, is a common Tejon species. 



Fig. 3a. Cardium breweri Gabb, X2. This specimen from Cal. Acad. 

 Sci. Locality 183 is slightly longer than the species found at Canada de las 

 Uvas. It may prove to be a subspecies. 



Fig. 3b. Cardium breweri Gabb, X2. Hinge view of specimen figured 

 as Fig. 3a. 



Fig. 4. Lucina cumulata Gabb, X3. This species probably belongs to 

 the genus Divaricella but since its hinge is unknown it is thought best to 

 let the old reference remain until better material is found. 



