i6 Bulletin i ( i6 ) 



depygis Con. 

 PJeurotoma depygis Con., Foss. Sh. Tert. Form., Nov., 1833, 



p. 46. 

 P. depygis Con., Foss. Sh. Tert. Form'., 2d. ed., p. 52, pi. 17, 

 fig. 20. 

 Idea's P. vionilife^a is evidently the young of depygis. 

 Some of the so-called types of depygis are P. sayi Lea, others 

 are P. desnoyersii Lea. 



deshaysii Lea 

 Peden deshaysii Lea ,Cont. to Geol., 1833, p. 87, pi. 3, fig. 66. 



desnoyersii Lea 



PI eitrotoma desnoyersii 'LiQQ., Cont. to Geol., Dec, 1833, p. 135, 

 pi. 4, fig. 128. 



discoidalis Con. 

 Cytherea discoidalis Con., Foss. Sh. Tert. Form., Sept., 1833, 



p. 37; pi 20, fig. 2 of Harris's reprint. 

 C. trigoniata Lea, Cont. to Geol., Dec, 1833, p. 67, pi. 2, f. 44. 



distans Con. 

 Corbis distans Con,, Foss. Sh. Tert. Form., Nov., 1833, p. 41. 

 Syn. of C. undata Con. 



divaricata Lea 



Ostrea divaricata Lea, Cont. to Geol., 1833, p. 91, pi. 3, f. 70. 

 Although evidently related to O. sellcEfof mis Con., these two 

 two may perhaps be regarded as specifically distinct. 



dolabra Con. 

 Lucina dolabra Con., Am. Jr. Sci. , vol. 23, Jan., 1833, p. 343. 

 Lucina dolabra Con., Foss. Sh. Tert. Form., 1833, p. 40. 

 Astarte recmva Lea, Cont. to Geol., Dec. 1833, p. 61, pi. 2, f. 34. 



doliata Con. 

 Mitra doliata Con., Foss. Sh. Tert. Form., Sept., 1833, p. 34. 

 Valuta cooperii'LiQB., Cont. to Geol., Dec, 1833, p. 175, pi. 6, fig. 



185. 

 Caitcella doliata Con., Am. Jr. Conch,, vol. i, 1865, p. 24. 



According to Conrad his Tut binella prisca , Foss. Sh. &c.. No. 

 4, p. 45 and 2d ed. p. 43, pi. 16, fig 9, (as Valuta') is the 

 same as his doliata. T. ptisca was not observed in the 

 Academy's collection. 



donacea Con. 

 Egeria donacea Con., Am. Jr. Conch, vol. i, 1865, p. 146, pi. 11, 

 fig. 12. 



