Vol. 4] Osvnont. — Areas of California Neocene. 



97 



ciated with the shale, and sometimes in the shale itself. In the 

 latter case it is usually small. It rarely occurs in the typical 

 shale. At Selbys, near Vallejo Junction, it is found in a calca- 

 reous layer in the shale with the same fauna as that in the sandy 

 layers below. 



It is common in the Monterey of the Pinole section. It is 

 also found at Walnut Creek. It probably occurs in the typical 

 shale at Carmelo Bay, and is also found at Barker's Ranch, near 

 Bakersfield. It is most abundant in the middle Monterey, where 

 it is associated with the following fauna : 



Tellina bodegensis Hinds. 

 Nassa, n. sp. 

 Siliqua patula Com-. 

 Lucina borealis Linn. 

 Chione succincta Val. 

 Callista, n. sp. 

 Mactra sp. 



At Barker's Ranch it is found with a fauna of lower Monte- 

 rey age, as follows : 



Crepidula grandis Midd. 

 Glycimeris generosa Gld. 

 Pandora scapha Gabb. 

 Yoldia cooperi Gabb. 

 Leda taphria Dall. 

 Soldi sp. 



Lunatia lewesii Gld. 



Agasoma barJcerianum Opr. 

 Agasoma Jcernanum Opr. 

 Agasoma, n. sp. 

 Turritella ocoyana Conr. 

 Conns, n. sp. near calif ornicus Hds. 

 Surcula carpenteriana Gabb. 

 Pleuratoma sp. 

 Trochita sp. like fdosa Gabb. 

 Myurella sp. like simplex Carpt. 

 Cancellaria sp (a) new. 

 Cancellaria sp. (b) new. 

 Dosinia sp. 



Nassa sp. near perpenguis Hds. 



Neptunea, n. sp. 

 Leda taphria Dall. 

 Yoldia cooperi Gabb. 

 Lucina richthofeni Gabb. 

 Neverita reeluziana Conr. 

 Natica ocoyana Conr. 

 Voluta, n. sp. 

 Standella indet. 

 Crucibidum sp. 

 Dentalium sp. 

 Solen sp. 

 Pecten sp. 

 Tellina sp. 



Nassa sp. 



The writer has seen specimens of this species collected by 

 Anderson and associated with the following lower San Pablo 

 fauna : 



Pecten pabloensis Gabb. 

 Pecten estrellanus Conr. 

 Dosinia ponderosa Gabb. 

 Lucina borealis Linn. 

 Tapes tenerrima Gabb. 

 Mytilus calif ornianus Gabb. 

 Mactra (Spisula) falcata Gld. 

 Macoma inquinata Desh. 



Mactra ( Pseudoca rdi u m ) sp. 

 Hemifusus sp. 



Trophonf aff. T. ponderosum jGabb. 

 Neverita reeluziana Desh. 

 Trochita sp. 



Astrodapsis tumidus Rem. 

 Sharks' teeth. 



