TERTIARY FOSSILS. 99 



C. Meekianum, Gabb. 



C. Meekianum, Gabb ; Pal. Cal., Vol. 2, p. 27, pi. 7, fig. 46. 

 Pliocene, Eagle Prairie. 



C. CENTIF1LOSUM, Cpr. 



Cardium centifilosum, Cpr. ; Rep. W. C. Moll., 1863, p. 642. 

 Post-Pliocene, San Pedro. Living. 



C. Panamense, Sby. 



Cardium Panamense, Sby. ; Proc. Zool. Soc, 1833, p. 85. 

 Post-Pliocene, San Pedro. Living. 



Sub-Genus LJEVICARDIUM, Swains. C. (L.) elatum, Sby. 



Cardium elatum, Sby., Rve. ; Icon. Conch., pi. 8, fig. 41. 

 Id., Val. ; Voy. Venus, pi. 17, fig. 1. 

 Liocardium elatum, Cpr. ; B. Assn. Rep , 1863, p. 642. 

 Post-Pliocene, San Diego. Living. 



C. (L.) SUBSTRIATUM, Con. 



Cardium substriatum, Con. ; Jour. Phil. Acad., Vol. 7, p. 228, pi. 17, fig. 2. 

 Liocardium substriatum, Cpr. ; Br. Assn. Rep., "W. C. Moll., 1863, p. 642. 

 Post-Pliocene, San Pedro. Living. 



CONCHOCELE, Gabb. C. disjuncta, Gabb. 



Conchocele disjuncta, Gabb ; Pal. Cal., Vol. 2, p. 28, pi. 7, fig. 48. 



Post-Pliocene, Dead Man's Island, off San Pedro. 



This is a small detached mass of very recent Tertiary, rich in fossils, all of 

 living species, except the present one. I quoted it as " probably miocene, " 

 in describing the species, but have since obtained more definite information 

 by a personal visit to the locality. 



C. BISECTA, Con., sp. 



Venus bisecta, Con. ; Wilkes's Exped., p. 724, pi. 17, fig. 10. 

 Cyprina bisecta, Con. ; Jour. Conch., 1865, p. 153. 

 Id., Con. ; Check List, No. 160. 

 Miocene, Astoria. 



