CRETACEOUS FOSSILS. 233 



ACEPHALA. 



MARTESIA, Leach. M. clausa, Gabb. 



Martesia clausa, Gabb; Vol. 1, p. 145, pi. 22, fig. 115. 



C hico Group, Pence's, Texas Plat, Tuscan Springs ; Martinez Group, Mar- 

 tinez ; Tejon Group, Martinez, Tejon, and ten miles west of Griswold's. 



TURNUS, Gabb. T. plenus, Gabb. 



Turnus plenus, Gabb; Vol. 1, p. 146, pi. 22, fig. 116. 



Sbasta Group, Cottonwood Creek; (? Cbico Group, Pacheco's Pass). 



SOLEN, Linn. S. parallelus, Gabb. 



Solcn parallelus, Gabb; Vol. 1, p. 146, pi. 22, fig. 117. 

 Plectosolen parallelus, Con. ; Sm. Check List, No. 241. 

 Tejon Group, Martinez, Marsh's and Tejon. 



S. (Hypogella) cuneatus, Gabb. 



S. (Hypogella) cuneatus, Gabb; Vol. 2, p. 175, pi. 29, fig. 61. 

 Martinez Group, Martinez. 



S. (Hypogella) Diegoensis, Gabb. 



S. (Solena) Diegoensis, Gabb ; Vol. 1, p. 213, pi. 32, fig. 280. 

 Plectosolen Diegoensis, Con. ; Sm. Check List, No. 240. 

 S. (Hypogella) Diegoensis, Gabb; Vol. 2, p. 176. 

 Tejon Group, San Diego. 



PHARELLA, Gray. P. alta, Gabb. 



Pharella alta, Gabb; Vol. 1, p. 147, pi. 22, fig. 118. 

 Martinez Group, Martinez. 



SILIQUA, Muhlf. S. Oregonensis, Gabb. 



Siliqua Oregonensis, Gabb ; Vol. 1, p. 147, pi. 29, fig. 237. 

 Chico Group, Siskiyou Mountains. 



CORBULA, Brug. ? C. primorsa, Gabb. 



? C. primorsa, Gabb ; Vol. 1, p. 148, pi. 22, fig. 120. 

 Tejon Group, Corral Hollow. 

 PAL. VOL. II. — 31 



