282 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



Cardita tumida Broderip= Venericardia crassicostata Sowerby. 



Cardita turgida Valenciennes, 1846= C. laticostata Sowerby. 



Cardita varia Broderip= Venericardia crassicostata Sowerby. 



Cardium aspersum Sowerby, cf . C' spinosum Meuschen. 



Cardium laticostatum Sowerby = C. procerum Sowerby. 



Cardium panamense Sowerby=C. procerum Sowerby. 



Cardium planicostatum Sowerby, 1833, not of Sedgwick and ]Murchison, 1829=C. 



magnificum Deshayes. 

 Cardium rastrum Reeve = C. scnticosum Sowerby. 

 Cardium rotundatum Carpenter=C. procerum junior. 

 Cardium snbelongatum Valenciennes, 1846, not of Sowerby, 1840. 

 Cassis lactea Kiener= Phalium ahhreviatum Lamarck. 

 Ceriihideaf ortiuscula Bayle^C. montagnei Orhigny . 

 Cerithidea valida C. B. Adams =C. montagnei Orbigny. 

 Cerithidea 'varicosa Sowerby, not Defrance=C. montagnei Orbigny. 

 Cerithium galapaginis Adams =C. interruptum Menke. 

 Cerithimn humboldtii Valenciennes =0. pacificum Sowerby. 

 Cerithium irroratum Gould =C. stercusmuscarum Valenciennes. 

 Cerithium nebulosum Sowerby, not Philippi = C. ynacuJosum. 

 Chxtopleura hahni JiochehTmie= Chiton fremblyi Broderip. 

 Chama thaca Molina, see PapJda thaca Dall. 

 Chione antiqua King, cf. Chione alvarezii Orbigny. 

 Chione biradiata Gray =3IacrocaUista squalida Sowerby. 

 Chione turnens YeYn\\=Anomalocardia subimbricata Sowerby. 

 Chionella, see Paradione. 



Chiton actdeatus Sowerby, in Beechey's Voyage, not of Linnaeus. 

 Chiton bicostatus Orbigny = C. pulchellus Gray. 

 Chiton coquimbensis Fremh\y = Enoplochiton niger Barnes. 

 Chiton glaber Clessin, cf. Tonicia elegans Frembly. 

 Chiion magnificus Deshayes=C lulus Sowerby. 

 Cliiton olivaceus Frembly =C latus Sowerby. 

 Chiton patulus Sowerby = C. stokesii Broderip. 

 Chiton scabriculus Sowerhy = Chxtopleura lurida Sowerby. 

 Chiton spiniferus Frembly= C. echinatus Barnes. 



Chiton striatus Barnes, 1823, not of Lamarck, 1819, nor of Fischer, 1809. 

 Chiton tuberculiferus Sowerby =C echinatus Barnes. 

 Cltlorostoma, cf. Tegula. 



Chlorostoma tropidophorum Adams= Tegula luciuosa Orl)igny. 

 ColumbeUa argus Orhigny =NitideUa ocellata Gmelin. 

 Columbella castnnea Gould = C'. unicolor Sowerl)y. 

 ColumbeUa costata 'Daclos= Anachisfluctuata Sowerby. 

 ColumbeUa ebenum Gould, cf. C. unifasciata Sowerby. 

 ColumbeUa fusiformis Hmds= Strombina lanceolata. 

 Columbella gibbosula Broderip = Strombina gibberula Sowerby. 

 Columbella meleagris Duclos=0. fuscata Sowerby. 

 Columbella nodalina Duclos=C fuscata Sowerby. 

 Columbella paytalida Duclos=C. paytensis Lesson. 

 Columbella recurva Sowerby, cf. Strombina lanceolata. 

 ColumbeUa sordida Orbigny = C. unicolor Sowerby. 

 Columbella spurca Sowerby, 1832= C. i)ayicnsis Lesson. 

 Columbella suturalis Gray = Anachisfluctuata Sowerby. 

 Columbella tessellata C. B. Adams, not of Gaskoin = C'. guafejnalermis Reeve. 

 Columbella triomphalia I>uc]os= Cantharus distortus. 

 Columbella unizonalis Gray=C. unifaseiata Sowerby. 



