CRETACEOUS FOSSILS. 251 



P. operculiformis, Gabb. 



Pecten operculiformis, Gabb; Vol. 1, p. 201, pi. 26, fig. 188. 



Chico Group, Cottonwood and Huling Creeks, and south of Mount Diablo. 



P. Californicus, Gabb. 



Pecten Californicus, Gabb; Vol. 1, p. 201, pi. 81, fig. 270. 

 Chico or Shasta Group, Cottonwood Creek, Shasta County. 



P. Martinezensis, Gabb. 



Pecten Martinezensis, Gabb; Vol. 2, p. 198, pi. 33, fig. 96. 

 Martinez Group, Martinez. 



P. complexicosta, Gabb. 



Pecten complexicosta, Gabb; Vol. 2, p. 199, pi. 33, fig. 97 a. 

 Shasta Group, Morgan Valley, Lake County. 



P. INTERRADIATOS, Gabb. 



Pecten interradiatus, Gabb ; Vol. 2, p. 199, pi. 33, fig. 98 a. 

 Tejon Group, New Idria. 



NEITHEA, Drouet. N. grandicosta, Gabb. 



Neithea grandicosta, Gabb ; Vol. 2, p. 200, pi. 33, fig. 99 a. 

 Shasta Group, Cottonwood Creek. 



LIMA, Brug. L. microtis, Gabb. 



Lima microtis, Gabb; Vol. 1, p. 202,- pi. 26, fig. 189. 

 Chico Group, Cottonwood Creek (and Texas Flat ?). 



L. appressa, Gabb. 



Lima appressa, Gabb; Vol. 1, p. 203, pi. 31, fig. 271. 

 Chico Group, Pacheco's Pass. 



L. Shastaensis, Gabb. 



Lima Shastaensis, Gabb; Vol. 2, p. 201, pi. 33, fig. 100. 

 Shasta Group, Cottonwood Creek. 



