ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 



541 



Glypliis densiclathrata -. 



Lucapiaa creuulata ^ (one spec. Catalina 



Is,)._ 

 Ilaliotis rufescens ^ *, Craclierodii ' *, 



Kaintschatkana ' *. 

 Poiiiaulax Undosus *. 

 Trochiscus Noriisii - (and Catalina Is.). 

 C&liiostoma canaliculatum ^, anuula- 



tum ', costatuiu K 

 Omphalius fuseesoens *. 

 Chlorostoma fuuebrale ^, bruuneum ^, 



Pfeitferi '. 

 Crucibulum spinosum ^ 



Crepidula rugosa -, adunca -, explanata *. 



Hipponyx Pantiquatus-, Ptumeus*. 



Serpulorbis squamigerus ^. 



Spiroglyphus lituella ^ *, 



Litoi'iua plauaxis ^ 



Trivia Califoruica ^. 



Conns Californicns *. 



Ranella Californica ^ 



Oiivella biplicata ', boetica ^ 



Purpura, vars. ostrina ', emarginata ^ 



Cerostonia Nuttalli*. 



Nassa meudica ^, pei-pingius \ fossata*. 



Helix, thi'ee sp. 



Shells collected hij Major Rich, near La Paz (west shore of the Gulf of Cal.), 



(Thracia) Cyathodonta plicata. 

 Sanguinolaria miniata. 

 Tellina Cumingii. 

 Strioilla carnaria. 



Heterodonax biuiacnlatus. 



Ipbigenia altior. 



Donax navicula, punctato-str., rostratus. 



Standella fragilis (common). 



Mulinia angulata. 



Trigona argentiua, radiata, planulata. 



Dosinia ponderosa. 



Callista concinna, chiona3a. 



Chione succincta, amathusia, gnidia, 

 pulicaria, viir. 



Auomalocardia subimbricata. 



Tapes grata, histrionica. 



Lazaria Californica. 



Chama spinosa, prodncta, corrugata. 



Cardium consors, biangulatum. 



Liocardium elatnm. 



Codakia tigerrina (two fine specimens). 



Cyrena olivacea, Mexici-Vii- 



Anodonta glauca. 



Mytilus multiformis. 



Modiola capax. 

 Area miilticostata. 



Barbatia Reeviana, solida. 

 Pectunculiis giganteus. 

 Pinna rugosa. 

 Margaritophora fimbriata. 

 Isognomon Clienini tzinnum. 

 Pecten ventricosus, subnodosus. 

 Lima tetrica *. 

 Janira dentata. 



Ostrea amara (Maz. Cat. 215. 7s. Cres- 

 tona, entrance of Gnlf), Yirginica 

 (more pearly than tbe Atlantic shells, 

 teste Rich). 

 Anemia lampe. 



Bulimus sufflatus *, excelsus *, pallidior. 

 Physa elata *, aurantia. 

 Patella Mexicaua. 

 Acmfea atrata, mesoleuoa. 

 Fissiirella rugosa, viresceiia, 

 Glyphis alta, intequalis. 



27 



Haliotis splendens (three fresh specimens 

 from a resident at Sau Jose). 



Callopoma fluctuosum. 

 Uvauilla olivacea. 



Omphalius rugosus, coronnlatus. 



Nerita scabricosta, Beruhardi. 



Neritina picta. 



Crucibulum spinosum, imbricatum, pec- 

 tinatum, umbrella. 



Galerus mamillaris, conieus. 



Crepidula aculeata, onyx, nivea, ungui- 

 formis, arenata. 



Hipponyx Grayanus, serratus, anti- 

 quatus. 



Aletes centiquadrus. 



Spiroglyphus lituella (on Cr. umbrella). 



Turriteila goniostoma, tigrJua. 



Cerithiummaculosum,stercusmuscarum. 



Cerithidea Montagnei. 



Litoi'iua fasciata, couspersa. 



Modulus catenidatus, disculus. 



Cypraea exanthema. 



Aricia arabicula. 



Luponia Sowerbii, albuginosa. 



Trivia sanguiuea, radians, Solandri, pus- 

 tulata, Pacifica. 



Strombus granulatus, gracilior. 



Euryta fulgurata. 



Pleurotoma funicidata, maculosa. 



Drillia Pinermis. 



Conns puncticulatus, gladiator, purpu- 



rascens, regularis, arcuatus, nux. 

 Solarium granulatum, v. quadriceps. 

 Cancellaria obesa, cassidiformis, soLda, 



goniostoma, Pcandida. 

 Natica maroccana, zonaria. 

 Polinices Recluziana, bifasciata, ctia. 

 Neverita patula. 

 Sigaretus debilis. 

 Oniscia tuberculosa. 

 Levenia coarctata. 

 Bezoardica abbreviata. 

 Priene nodosa. 

 Turbinella csestus. 

 Fasciolaria princepa. 



