ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 



665 



•Sanguiuolaria Nuttalli. 



*Macoina secta. 



Angulus Gouldii. 

 •tlleterodonax biniaculatus. 



*Donax Oalifoniicus. 



fDonax punetutostrisitiis. 



*Standella i'Califoruica. 



*Pachydesma crassatelloides. 

 *tAmiantis callosa. 



*Chioue siniiliima. 



tCliione ne<Tlecta. 



*Tapes staniinea, Conr, 



t Tapes g-iata and vars. 



*Luciua Ca!ifoinica. 

 Lucina btlla. 



*j.\I villus edulis. (One young specimen, 

 perhaps from San Francisco.) 



*Septiler bifurcatus. 



tPecten subuodosus, ventricosus. 



*Pecten monotunerls and vars. 



*Hinnltes giganteus. 

 •fOstrea concliaphila. 

 •fAnomla hlampe. 



Slphonaria pequilirata. 

 •fMelampus olivaceus. 



Helix arrosa. 

 *tBulla nebulosa. 

 •flschuochiton Magdalensis. 



*Acm8ea persona, var. textilis. 



*Acmaea scabra, var. limatula. 



*AcmtBa ?sp-ctrum, juu. 



*Lottia g'ig-antea. 



*Lucapiua crenulata. 



*FissurelIa volcano. 



*Haliotis splendeus. 



•Haliotis Craclierodii. 



•Pomaulax iiidosus. 



*Trochiscus Norrisii. 

 •Oiuphalius rluscescens. 

 * Omphalius aureotinctus. 

 tCrucibulum imln-icatum. 

 *tCrucibuluni spinosum. 

 tCrepidnla areuata and var. 

 tCerithiiim uncinatum. 

 *Cerithidea pnllata. 

 tCerithidea Montagnei. 

 *Litorina planaxis. 



Luponia sp. ind., juu. 

 tTrivia Solandrl. 

 *Trivia Californica, 



Drillia peuicillata. 



Myurella, sp. 

 *t^^^everita Recluziana. 

 tXatica Maroccana. 

 *Scalarla (lud. var.) tincta. 

 tBezoardica abbreviata. 

 tLeiicozonia cingulata. 

 fStrigatella trlstis. 

 *01ivella biplicata. 

 *Purpura ostrina, vars. 

 fPurpm-a biserialis. 



INIonoceros higubre. 

 tVltularia salebrosa. 



Cerostoma monoceros. 



Ocinebra Poulsoul. 



Chorus Belcheri. 

 tColumbella fuscata. 

 *Columhella carinata. 

 fStrombina gibberula, 

 fAnachis coronata. 

 *tNassa tegula. 

 tNassa complanata. 



Macron Kellettii. 

 * Macron lividus. 



Callopoma tessellatum=Fokl5;esii. 



The shells of Margarita Bay, on the Pacific coast of Lower Califoi-nia, 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 vai^ious 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 eUmi- 

 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), 

 Seuiele Calit'oruica. 



151 



Donax punctatostriatus. 



Dosinia ponderosa. 



Callista chionfea. 



Callista vulnerata (?=tricolor, P«c.), 



Chione succincta 



Chione gnidia. 



Tapes grata. 



