CRETACEOUS FOSSILS. 239 



Y. LENTICULARIS, Gabb. 



Venus lenticularis, Gabb ; Vol. 1, p. 162, pi. 30, fig. 246. 

 Chico Group, Benicia. 



V. TETRAHEDRA, Gabb. 



Venus tetrahedra, Gabb; Vol. 1, p. 163, pi. 30, fig. 247. 

 Chico Group, Martinez. 



V. ^EQUILATERALIS, Gabb. 



Venus cequilateralis, Gabb ; Vol. 2, p. 184, pi. 30, fig. 76. 

 Tejon Group, San Diego. 



CHIONE, Miihlf. ? C. ANGULATA, Gabb. 



? Chione angulata, Gabb; Vol. 1, p. 213, pi. 32, fig. 281. 

 Martinez Group, Martinez. 



C. VARIANS, Gabb. 



Venus (Mercenaria ?) varians, Gabb ; Vol. 1, p. 161, pi. 23, fig. 140, 141. 



Dione varians, Con. ; Sra. Check List, No. 188. 



Chico Group, Jacksonville, Siskiyou Mountains, Pence's, Tuscan Springs, 

 Cow Creek, Chico Creek, Folsom, Texas Flat, Benicia, Martinez, Curry's, 

 and Orestimba ; Martinez Group, Martinez, and Benicia. 



MERETRIX. Lam. M. UVASANA, Con. 



Meretrix Uvasana, Con. ; P. K. E. Kep., Vol. 5, p. 320, pi. 2, fig. 3. 

 Id., Gabb ; Pal. Cal., Vol. 1, p. 163, pi. 30, fig. 248. 

 Dione Uvasana, Con. ; Sm. Check List, No. 187. 



Tejon Group, Martinez, Clayton, Cochraue's, Tejon, New Idria, Griswold's, 

 San Diego, and elsewhere. 



M. LENS, Gabb. 



Meretrix lens, Gabb ; Vol. 1, p. 164, pi. 23, fig. 143. 

 Chico Group, Chico Creak. 



$. HORNII, Gabb. 



Meretrix Hornii, Gabb ; Vol. 1, p. 164, pi. 23, fig. 144. 

 Id., Gabb ; Vol. 2, p. 185, pi. 30, fig. 78. 

 Tejon Group, Tejon. 



