142 University of California Publications in Geology [Vol. 13 



Complete List op Known Species from the Briones Formation with 

 their Geologic Kange — (Continued) 



Pelecypoda — (Continued) 



Maeoma andersoni Clark 



Maeoma nasuta (Conrad) 



Maeoma cf. secta (Conrad) 



Maeoma ef. yoldiformis Carpenter 



Marcia oregonensis (Conrad) 



Metis alta (Conrad) 



Modiolus ef. eapax Conrad 



Modiolus gabbi subconvexus, n. sp. ... 



Modiolus veronensis, n. sp 



Mulinia cf. densata Conrad 



Mulinia pabloensis Packard 



Mya ovalis (Conrad) 



Mytilus cf. perrini Clark 



Mytilus cf. trampasensis Clark 



Ostrea bourgeoisi Remond 



Pandora, sp 



Panope generosa Gould 



Peeten andersoni gonicostus, n. var. . 



Pecten bilineatus Clark 



Pecten crassicardo (Conrad) 



Pecten raymondi Clark 



Pecten raymondi brionianus, n. var. 



Pecten rieei, n. sp 



Pecten tolmani Hall and Ambrose 



Pecten vickeryi, n. sp 



Phaeoides annulatus (Eeeve) 



Pitaria, sp 



Saxidomus nuttalli Conrad 



Schizothaerus nuttallii (Conrad) 



Siliqua lucida (Conrad) 



Solen perrini Clark 



Solen siearius Gould 



Spisula albaria (Conrad) 



Spisula eatilliformis Conrad 



Spisula falcata brioniana, n. var 



Tellina oregonensis Conrad 



Tivela diabloensis Clark 



Tivela merriami, n. sp 



Venus brioniana, n. sp _ 



Venus martini Clark 



Yoldia cooperi Gabb 



Yoldia, sp 



Zirphaea dentata Gabb 



Gastropoda 



Actaeon, sp 



Acanthina perrini, n. sp 





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