ARNOLD -THE PALEONTOLOGY AND STRATIGKAPHY OF SAN PEDRO. 



63 



Otivclla piidroana Conrad 



Opalia anomnta Stearns 



Opalia varicostala Stkarns 



(Islna liirida Carpentkr 



Oslrea veatchi (?) Gabk 



Pectin cxpaiisus Dali 



I'crtai haslnlus Sowerby 



/', lirii hi mphilli Dai.l 



Pe.clen hericeus Goold 



Pecten latiauritus Conrad 



Pexlen lalinurilus var. monothmrk Conrad. 



Pcrfin opitntht. Dai, I 



Pecten slearnitii Da ll 



Pecten subventricosus Dai.l 



Pecten venlricosus Sowkbby 



Periptoma argentaria Conra u 



J'elricola carditoidcs Conrad 



Phasianella compta GodLD 



Pisania fortis Carpenter 



Pleuroloma carpenleriana Gabb 



Pododesmus macroschisma Desha yes 



Poinnulax tmdosus Wood 



Pteronotus feslivus Hinds 



Purpura crispata Chemnitz 



Ranella cali/ornka Hinds 



SaxidomuK arrifun Goui.D 



Scala crebricoslata Carpenter 



Scala tincla Carpenter 



Semele decisa Conrad 



Semele pulrhra Sowerby 



Serpulorbis squamigerus Carpenter 



Siliqua lucida CoNRAD 



Siliqtia patula var. nuttalti Conrad 



Siphonalia kelleltii Forbes 



Solcn rosaceus Carpenter 



Strongyloccntrotus purpuratus 



Tagelus californianus Conrad 



Tapes slamiiiea Conrad 



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