48 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 



PREHISTORIC FUANA OF CALIFORNIA. 



PLATE 3. 



Cretaceous Fossils from San Diego County, California, re- 

 cently described by Dr. J. G. Cooper. 



(Figures natural size.) 

 43. Stomatia intermedia. Cooper. Details of sculpture compiled 

 from three specimens ; Cretaceous ; San Diego County, 

 California. 

 44-45. Astarte semidentata, Cooper. Umbonal angle of 45 too 

 narrow. 



46. Bulla assimilata. Cooper. 



47. Crassatella lomana, Cooper. 



48-49. Megerlia dnbitanda, Cooper. Upper and lower odd 

 valves. 



50-51. Waldheimia imbricafa, Cooper. 



52. Agasoiua (Trophosycon) Barkeriannm, Cooper. Mouth im- 

 perfect. Pliocene ; Kern County, California. 



