70 



d one specimen. 



d common, 

 d 

 A fine series obtained 1 . 



Oryptomya californica Conr. 



Clidiophora punctata G-abb. 



Semele decisa Conr. d 



Lyonsia californica Conr. 



Periploma argentaria Conr. 



Sanguinolaria nuttallii Conr. 



Tellina rubescens Hani. One fine specimen obtained. 



T. variegata Cpr. d not rare. 



Heterodonux bimaculatus D'Orb. d common. 



Macoma indentata Cpr. Abundant. 



Donax californicus Conr. d common. 



D. flexuosus Gould. Few fine ones obtained. 



Venus fluctifraga Sowerby. One distorted specimen. 



V. succincta Val. Large and abundant. e 



Tivela crassatelloides Conr. d not abundant? 



T. radiata Sowerby. Not common? 



Amiantls callosa Conr. Abundant. d 



Cytherea chionaea Mke. e edible, not abundant. 



Tapes staminea Conr. d 



Oardium procerum Sby. 



Liocardium elatuin Sby. 



L. substriatum Conr. 



Chama exogyra Conr. d 



Area multicostata Sby. 



Mytilus californianus Conr. 



Modiola capax Conr. d 



Septifer bifurcatus Reeve. 



Pinna lanceolata Sby. d e 



Avicula peiuviana Reeve. Found abundant by pearl fishers, e 



Pecten subnodosus Sby. d e 



P. monotimeris Conr. d rare. 



P. aequisulcutus Conr. e extremely abundant. 



Anomia lampe Gray. 



Thousands of find specimens were found, attached to each 

 other, or to other shells, bits of wreckage, etc. Found also at 



Guaymas, in the Gulf. 

 Ostrea lurida Cpr. ee common. 

 Labiosa ^Rfeta) undulata Gould. d 

 Dosinia ponderosa Gray. e edible, common. 



To be concluded. 



e not rare, edible, 

 d e 



