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University of California Publications in Geology [Vol.8 



Elsmere Holser Pico 



Living Canon Canon Canon 



Cryptomya, ef. ovalis Conrad x x 



Dosinia ponderosa Gray (n. var.?) x x 



Leda taphria Dall x x x x 



Macoma indentata Cpr x x x 



Macoma nasuta Conrad x .... x 



Macoma seeta Conrad x .... x 



Marcia subdiaphana Cpr x x x 



Metis alta Conrad x x x 



Modiolus, sp.? x x 



Mytilus, sp.? x 



Nucula castrensis Hinds x x .... x 



Ostrea veatchi Gabb .... x 



Panopaea generosa Gould x x x 



Paphia tenerrima Cpr x .... x 



Pecten ashleyi Arnold x 



Pecten cerrosensis Gabb x x x 



Pecten healyi Arnold x x 



Pecten oweni Arnold x x 



Pecten, sp.? cast ... .... x 



Pecten, sp. ? small x 



Phacoides acutilineatus Conrad x x x 



Phacoides nuttali Conrad x x x 



Phacoides richthofeni Gabb x x x 



Phacoides santaecrucis Arnold x x 



Protocardia centifilosa Cpr x .... .... x 



Psamobia edentula Gabb x? .... x 



Solen sicarius Gould x x x x 



Spisula catilliformis Conrad x .... x 



Tellina idae Dall x x x 



Venerieardia californica Dall x x 



Yoldia cooperi Gabb x .... .... x 



Gastropoda. 



Amphissa, sp.? x 



Astralium, sp.? x x 



Bathytoma carpenteriana Gabb, var. fernando- 



ana, Arnold x x 



Bittium cf. asperum Gabb x x x 



Bulla punctulata Adams? X .... x x 



Calyptraea filosa Gabb .' x .... x 



Calyptraea radians Arnold — . x 



Cancellaria elsmerensis, n. sp x 



Cancellaria fernandoensis Arnold x 



Cancellaria tritonidae Gabb x x 



Chrysodomus arnoldi Rivers? x x x 



Chrysodomus, sp.? - X 



Conus californicus Hinds x x x 



Crepidula onyx Sowerby x .... x 



Crepidula princeps Conrad x x 



Cypraea fernandoensis Arnold x 



Drillia johnsoni Arnold .... x 



