0\ MOLLrSTA or THE WEST COAST OF XORTII AMERICA. 637 



Cliioiie piillcnrin, Sby., vai\,= V. Pitiacateimg, Sloat MS. Sculptiue pretstd 



smooth in the niiiidle. 

 Cardinni elatiim. Ymf. 

 Ciirdiim proccrum. Fine. 



■MikHiIu cajm.v. '■ Choros.'' Alao Sta. Inez Bay. 

 Mdfliola Brasiliensis. (Typical.) 

 Ji)f-<.tonrca Pacijica. 



Oi^'rca coiichapliiln et amara, Jfaz. Cat. 215. 

 C'hifon (Lophynt^) IStokenii. Also San Salvador, Capt. Dow, 

 Cdllopomajiiictuattim. 

 liiroiiia co/itorta. 

 Ti 'rritcUa pint iontoma. 



TurriteUit fi;/rina (lijrht Yur. ),= k)icosfoma, Val. 



Cerithiden alhonodusu. ( 'onminn. [Probably a var. of Mazatlatnca.J 

 Sfnniibii.s f/raciiior. Also Mulejire Bay. 

 Kcreritd JRecbiziana. [Operc. strong, horny.] 

 Jtanclla friqiietra. [Operc. sub-Bucciiioid, oval ; nucleus internal, near middle 



of la brum : scar witn few ridges, as in Purpura.^ 

 OUra angulata. Not rare. 

 Oliva Ciimi)i(fii, very callous var. 

 A'jaronia testacea. 

 Moiioceros luyubre. Very tall var. 

 PhyUimotus nigritus. ^'ery large, of form described by Philippi, with Pholads 



in situ. Agiobanipo Bay. 

 Phyllonotits bicolor. [Operc. thin, without frills or raised layers ; of uniform 



colour.] Also Angeles Bay. 



To these may be added, from a second voj-ago by Capt. Stone to the 

 northern part of the Gulf of California, and in equally good condition — 



Area grandiii. Agiobampo Bay. 



Callisfa semdamelldsa. Agiobampo Bay. 



jAizttiia pectuncilu» (teste Cuming). St. Luis Bay. 



Cnrdiion consors. St. Luis Bay. 



Avicida Peruviana. Mulege Bay. 



Lucina tif/errina. Very fine. San Marcos Island. 



3I<triiaritiphoraJimhri(da. " Topo." 



Jtinira dentata [ = ('.rravata, Val. J. " Caballito del mar," St. Luis Bay. 



Ihdhi nebidosa. " Huevitos.'' 



G/t/phis itirrqitalix. St. Luis Bay. 



Criicibidiiin imhricatum. St. Luis Bay. 



Cyprtea e ranfhema. (Large.) Cape de Haro. 



Myurella varieyata. Mul'-ge Bay. 



Solarium yramdatum et var. quadriceps. Agiobampo Bay. 



Palinices bifaticiata. AngcLs Bay. 



Cypreecamis tenuis [= Marseiirp, Kien.]. Cai'meu Island. 



Hnrpa cretMta. Very fine. Mulege Bay. 



litzoardica abbreviata. Mulege Bay. 



Ficida decussata. Angeles Bay. 



Pynila patida. A giobainpo Bay. 



Malea rinyens, Lobos Island. 



Argonauta hians.' 1 tine sp. Upper part of Gulf of California. 



To the Guaymas fauna must he added, from Dr. Gould's portion of the 

 same collection, " Pirfc7i py.vidafus" [? =subcrenntu^, jun.). Also from the 

 collection of the Ciilif. Ac. Nat. Sc., Nassa nodocimta,, A. Ad. [Galapagos, 

 Cuminr/]. On comparing these lists with the shells given in B. A. llcp. 

 p. 352 (in which the Venus quoted is not " staminea, Conr.," but a southern 

 species), it will be seen that the fauna of the upper part of the Gulf, as fur 

 north as it has been explored, is essentially troi)icaI. The Chione Jliutijiii</ci 



153 



