38 



CALIFORNIA ACADEMY OK SCIENCES. 



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Yoldia eooptri Ga BB X 



Yoldia Bcusurata Dall ' X 



Zirphaa gabhi Tbyon I X 



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Semtit dtfim CosHAU X M 



Semelt pulehra Sowkkby X 



Semelt puUhra rar. monUrryi, var. uor N 



Stpiij'rr bifurcatun Cosn AD X 



Sitii/un tuciiln Cos ra i> X 



.S'i/iyHa patula t«t. nuttaiti CONRAD N 



SoUn ro»areu» Ca RPENTRR X 



Soten rirariui Got" ld X 



Tagtlus rali/ornianiin Conrad X 



Tai>f$ laeiniata Carpknter X 



Tapet itaminea Conrad X 



Taptt Unerrima Cartenter X 



Tellina bodtijtntii HiNDS 1 X 



TeUina ida Dall I X 



Tellina rvbtnetiu Ha.vlet i g 



Throfin trapaoidtt Conrad E 



Tkyatira hiitecta Conrad N 



Thyanira gouldii Philippi X 



T^vtla crattaUlloidet Conrad X 



Tretus nuUalli CoNBAO x 



Venericardia barbarentii Stearns X 



Venerirardia rentricom Gould JJ 



Venui (Chionf) /ucli/raga Sowerbv j X 



Venut {Chione) gnidia Brodkrip Si Sowerbv S 



Venus {Chione) neglecta Sowerbv g 



Venui {Chione) timillima Sowerbv X M 



Venu» {Chione) succincta Valencie!<!«e.<i X C 



Vertlcordia novemrofUtta Adams & Reeve X 



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Upper San Pedro. 



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