CRETACEOUS FOSSILS. 243 



C. (PnOTOCARDIUM) TRANSLUCIDUM, Gabb. 



Cardium (Protocardium) translucidum, Gabb; Vol. 2, p. 187, pi. 30, fig. 82 a. 

 Chico Group, Martinez. 



CARDITA, Brug. C. HORNII, Gabb. 



C. planicosta, Con. (not Lain.); P. R. R. Rep., Vol. 5, p. 321, pi. 2, fig. 6. 



Cardita Hornii, Gabb; Vol. 1, p. 174, pi. 24, fig. 157. 



C. Hornii, Gabb ; Vol. 2, p. 187, pi. 30, fig. 83 a. 



Tejon Group, Martinez, Clayton, Griswold's, New Idria, and Tejon. 



C. VENERIFORMIS, Gabb. 



Cardita veneriformis, Gabb; Vol. 1, p. 215, pi. 32, fig. 285 a. 

 Martinez Group, Martinez. 



CLISOCOLUS, Gabb. C. DUBIUS, Gabb. 



Loripes dubia, Gabb; Vol. I, p. 177, pi. 24, fig. 170, 171. 

 Clisocolus dubius, Gabb ; Vol. 2, p. 189, pi. 30, fig. 84. 

 Chico Group, Texas Flat, Chico Creek, and Tuscan Springs. 



LUCINA, Brug. L. NASUTA, Gabb. 



Lucina nasuta, Gabb; Vol. 1, p. 175, pi. 24, fig. 159. 

 Martinez Group, Martinez. 



L. POSTICE-RADIATA, Gabb. 



Lucina postradiata, Gabb ; Vol. 1, p. 175, pi. 54, fig. 158. 

 Chico Group, Texas Flat. 



L. SUBCIRCULARIS, Gabb. 



Lucina subcircularis, Gabb; Vol. 1, p. 176, pi. 24, fig. 160. 

 Chico Group, Texas Flat. 



L. CUMULATA, Gabb. 



Lucina cumulata, Gabb ; Vol. 1, p. 176, pi. 24, fig. 254. 

 Tejon Group, Tejon. 



? L. CRETACEA, Gabb. 



? Lucina cretacea, Gabb, Vol. 1, p. 177, pi. 30, fig. 256. 

 Tejon Group, Clayton to Marsh's. 



