OF WEST COAST MOLLUSCA. 37 



744 Amycla tuberosa Cpr. 

 Necah Bay to San Diego. 



745 Amycla chrysalloidea Cpr. 

 San Pedro and San Diego. 



746 Amycla undata Cpr. 

 Catalina I. 



747 Amphissa corrugata live. 

 Str. Fuca to San Diego. 



748 Purpura crispata Cltem. 

 Str. Fuca to Oregon Sitka. 



749 Purpura crispata var. septentrionalis 

 Santa Barbara north. [Rve. 



750 Purpura canaliculata Dud. 



Str. Fitca to Monterey Behring's Straits. 



751 Purpura saxicola Val. 



Str. Fuca to S. Barbara Lower Cal. ? 



752 Purpura saxicola var. fuscata Fbs. 

 Str. Fuca to Santa Cruz, Cal. 



753 Purpura saxicola var. ostrina Gld. 

 Str. Fuca to Santa Barbara. 



754 Purpura saxicola var? emarginata 

 S. F. Bay to S. Diego N. Zealand ? [Desk. 



755 Purpura triserialis Blainv. 

 Santa Barbara to San Diego Mexico. 



756 Monoceros engonatum Conr. 

 Baulines Bay to San Diego. 



757 Monoceros engonatum var? spiratum 

 San Pedro to San Diego. [Blainv. 



758 Monoceros lapilloides Conr. 

 Monterey to Catalina I. 



759 Ocinebra lurida Midd. 

 Str. Fuca to Catalina I. Sitka. 



760 Ocinebra lurida var. aspera Baird. 

 Str. Fuca to Baulines Bay Sitka. 



761 Ocinebra lurida var. munda Cpr. 

 Str. Fuca to Baulines Bay. 



762 Ocinebra lurida var? 

 Santa Barbara to Catalina I. 



763 Ocinebra interfossa Cpr. 



Str. Fuca to Monterey. 

 f 



764 Ocinebra interfossa var. atropur- 

 Str. Fuca to Monterey. [purea Cpr, 



765 Ocinebra interfossa var. 

 Santa Barbara to Catalina I. 



8 



