ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA, 



665 



"Sanguinolaria Nuttalli. 



*Macoma secta. 



Angulus Gouldii. 

 *fHeterodonax bimaculatus. 



*Donax Calif ornicus. 



tDonax punctatostriatus. 



*Standella ? Californica. 



*Pachydesma crassatelloides. 

 *fAmiantis callosa. 



*Chione siinillima. 



tC hi one neglecta. 



*Tapes staminea, Conr. 



t Tapes grata and vars. 



*Lucina Californica. 

 > Lucina bella. 



*Mytilus edulis. (One young specimen, 

 perhaps from San Francisco.) 



*Septifer bifurcatus. 



tPecten subnodosus, ventricosus. 



*Pecten monotimeris and vars. 



*Hinnites giganteus. 

 *tOstrea conchaphila. 

 *fAnomia Plampe. 



Siphonaria Eequilirata. 

 "fMelampus olivaceus. 



Helix arrosa. 

 *fBulla nebulosa. 

 *flschnochiton Magdalensis. 



*Acmsea persona, var. textilis. 



*Trochiscus Norrisii. 

 *0mphalius Pfuscescens. 

 *Omphalius aureotinctus. 

 fCrucibulum imbricatum. 

 *tCrucibulum spinosum. 

 tCrepidula arenata and var. 

 tCerithium uncinatum. 

 *Cerithidea pullata. 

 tCerithidea Montagnei. 

 *Litorina planaxis. 



Luponia sp. ind., jim. 

 tTrivia Solandri. 

 *Trivia Californica. 



Drillia penicillata. 



Myurella, sp. 

 *tNeverita Recluziana. 

 tNatica Maroccana. 

 *Scalaria (Ind. var.) tincta. 

 fBezoardica abbreviata. 

 fLeucozonia cingulata. 

 fStrigatella tristis. 

 *0i:vellabiplicata. 

 *Purpura ostrina, vars. 

 fPurpura biserialis. 



Monoceros lu^ubre. 

 fVitularia salebrosa. 



Cerostoma monoceros. 



Ocinebra Poulsoni. 



Chorus Belcheri. 

 tColumbella fuscata. 

 *Columbella carinata. 

 fSfrombina gibberula. 

 fAnachis coronata. 

 *fNassa tegula. 

 fNassa complanata. 



Macron Kellettii. 

 *Macron lividus. 



*Acni8ea scabra, var. limatula. 

 *Acm8ea Pspectrum, jun. 

 *Lottia gigantea. 

 *Lucapina crenulata. 

 *Fissurella volcano. 

 *Haliotis splendens. 

 *Haliotis Cracherodii. 

 *Pomaulax u.ndosus. 

 Callopoma tessellatuni=Fokkesii. 



The shells of Margarita Bay, on the Pacific coast of Lower California, in 

 lat. 24, have become known through W. Harper Pease, Esq., of Honolulu, 

 Sandwich Islands. Through his labours we are likely soon to be favoured 

 with accurate accounts of the distribution of species in the various parts of 

 the Pacific Ocean. Already his researches have greatly enriched our know- 

 ledge of the quaint fauna of the Sandwich Islands, from which he has elimi- 

 nated the spurious species, and added those erroneously ascribed to California 

 by previous naturalists. The principal trade from these islands is with San 

 Francisco ; and " the coast," in Mr. Pease's writings, signifies the coast of 

 California or (generally) of Western America. Many of our best specimens 

 of rare West-coast shells have been received from him, and in remarkably 

 fresh preservation. The Margarita Bay species were obtained by one of his 

 trained collectors, and are as follows : 



Martesia intercalata. 

 Saxicava pholadis 

 Solecurtus violascens. 

 Hiatula compacta. 

 'Tellina secta. 

 Strigilla carnaria (pink). 

 Seniele Californica, 



151 



Donax punctatostriatus. 



Dosinia ponderosa. 



Callista chionaea. 



Callista vulnerata (?=tricolor, Pse.). 



Chione succincta 



Chione gnidia. 



Tapes grata. 



