42 



467 Anachis penicillata Carpenter. 

 Synonym of Columbella penicillata. 



468 Mera obtusa Carpenter. 

 Santa Barbara channel (Yates). 



469 Chiton (Trachydermon) fallax Carpenter. 



Dredged in the Santa Barbara channel, southern limit (Yates). 



470 Odostomia avellana gouldii Carpenter. 

 Santa Barbara channel (Cooper). 



471 Lacuna unifasciata aurantiaca Carpenter. 

 Santa Barbara channel; Catalina Island. 



472 Standella planulata Conrad. 

 Synonym of Mactra planulata. 



473 Serpulorbis squamigerus Carpenter. 



Santa Barbara Islands; Todos Santos bay, often on Septifer 

 bifurcatus. 



474 Opalia crenatoides insculpta Cooper. 

 Santa Cruz; Santa Barbara. 



475 Cerithiopsis tuberculata Mont. 



Europe; Straits of Fuca; Santa Rosa Island (Yates). Catalina 

 Island. 



476 Cerithiopsis fortior Carpenter. 

 Santa Barbara; San Pedro, Cal. 



477 Columbella carinata hindsii Reeve. 

 Neeah bay to San Diego, with typical form. 



478 Columbella gausapata Gould. 

 Santa Barbara to San Diego. 



479 Purpura canaliculata Duclos. 

 Alaska; Oregon; Santa Rosa Island. 

 Synonym of Purpura lima. 



480 Purpura saxicola? emarginata Desh. 

 Monterey; Santa Rosa Island (Yates). 

 Synonym of Purpura lima emarginata. 



481 Variety Fuseata Forbes. 

 Straits of Fuca; Santa Rosa Island. 



482 Variety Ostrina Gould. 



Bodega bay; Santa Barbara (Yates). 



483 P. crispata septentrionales Reeve. 



Santa Barbara, southern limit of this color variety. 



484 Bupellaria lamellifera See 2186. 



485 Mangillia interlirata Stearns. 



Monterey; Santa Rosa Island (Yates); San Diego? 



