Vol. 4] 



Osmont. — Areas of California Neocene. 



93 



.1/ ill in in densata Con 

 Area trilineata Conr. 

 . I rca ca mil is ( lour. 

 J antra bella ( lonr. 



Pandora bilirata < lonr. 

 ( 'ardita occiden talis < lonr. 

 Viodora crucibuleformis Conr. 



Gabb states that A. sulcicosta is found at Santa Barbara, 

 Santa Rosa, Valley of Russian River, Half Moon Bay, Capitola, 

 Poxins (Griswold's '!), Ban Fernando. He calls the above forma- 

 tion Pliocene and lists the following fauna : 



SANTA BARBARA (Gabb). 



Neptunea tabulata Baird. Macoma edulis Xuttl. 



Lunatia lewesii Gld. Caryatis barbarensis Gabb. 



Crepidula grandis Midd. Tapes tenerrima Cpr. 



Schizothaerus nuttalli Conr. Saxidomus gracilis Gld. 



Lutricola alta Cpr. Cardita ventricosa Gld. 



santa kosa (Gabb). 



Nassa fossata Gld. Chione succinta Val. 



Crepidula princeps Conr. rapes staminea Conr. 



Modiola recta Conr. Lucina borealis Linn. 



Machaera patula Cpr. SoZcn rosaceus Cpr. 



Cryptomya calif ornica Cour. Axinea patula Conr. 

 Macoma nasuta < lonr. 



SAN 



Lucina richthofeni Gabb. 

 Lucini borealis Linn. 

 Neptunea tabulata Baird. 

 Neptunea humerosa Gabb. 

 Nassa fossata, Gld. 

 Nassa perpenguis Hds. 

 Purpura saxicola Val. 

 Lunatia richthofeni. 

 Lunatia leivisii Gld. 

 Neverita reclusiana Dcsh. 

 Sinum planicostum Gabb. 



J mi sttlcicoslii Gabb. 



fernando (Gabb). 



('mills calif omicus Hinds. 

 Cancellaria altispira Gabb. 

 2' r it on iu in cooper i. 

 Crepidula grandis Midd. 

 Crepidula dorsata Brod. 

 Calliostoma costata Mark. 

 Ac nana mil is Gabb. 

 Bulla nebulosa Gld. 

 Solen rosaceus Cpr. 

 Siliqua edulata Gabb. 



At Wilson's Ranch, Russian River, near Mark West Creek, 

 the writer has collected the following: 



Tapes stale yi Gabb. 

 Macoma nasuta Conr. 

 Standella s]>. 



Schizothaerus nuttalli Com'. 

 Natica clausa Brod. and Sby. 

 Natica lewisii Gld. 

 Olivella biplicata Sby. 

 Neptunea tabulata Baird. 



Area trilineata Conr. 

 Nassa perpenguis Hds. 

 Cardium corbis Martyn. 

 Crepidula grandis (?) Midd. 

 Purpura saxicola Val. 

 Solen sp. 

 Pleurotoma sp. 



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