1905.] NATURAL SCIENCES OF PHILADELPHIA. 13 



Lithophaga aflinis (iabb, Proc. Acad. Xat. Sci., 1S61, 326. 



Type figured by Whitfield {Mon., pi. 17, figs. 2, 3). 



Lithophaga ripleyana ftabb, Proc. Acad. Nat. Sci., 1876, 311. 



The types are not very clearly defined; they include the specimen 

 figured by Whitfield (pi. 17, figs. 4, 5). 



PHOLADOMYID^. 



Pholadomya oocidentalis Morton, Syii. Org. Rem., 68, pi. VIII, f. 3, 1834. 

 Pholadomya littlei Oabb, Proc. Acad. Nat. Sci., 1876, 306. 

 Pholadomya postsulcata Conr., Jour. Acad. Nat. Sci., IV, 2 ser., 276, 1860. 

 Pholadomya (Anatimya) anteradiata Conrad, Jour. Acad. Nat. Sci., IV, 2 ser., 276, pi. 46, i. 

 3, 1860. 



ANATINID^. 



Periplomya elliptioa (Gabb). 



Anatina elliptica Gabb, Proc. Acad. Nat. Sci., 1861,[324. 

 Ceroomya peouliaris (Conrad). 



Inoceramus peculiaris Conr., Am. Jour. Conch., V, 43, pi. I, f. 13. 



FERIPLOMID^. 

 Periploma applicata Conrad, Jour. Acad. Nat. Sci., Ill, 2 ser., 324, 1858. 



POROMYID^. 



Leiopistha protexta (Conrad). 



Cardium protextum Conrad, Jour. Acad. Nat. Sci., II, 2 ser., 275, pi. 24, f. 

 12. 



PLEUROPHORID^. 

 Veniella oonradi (Morton). 



Venilia conradi Mort., Amer. Jour. Sci., XXIII, 294, pi. 8, figs. 1, 2, 1833. 

 The specimen marked "type" is badly broken. 

 Veniella elevata Conrad, Amer. Jour. Conch., VI, 74, pi. 1 [= 3], figs. 7, 7a, 1870. 

 This is only the young of V. conradi. 



Veniella inflata Conrad. 



Goniosoma inflata Conr., Amer. Jour. Conch., V, 44, pi. 1, f. 10. 

 An internal cast, the type of Conrad's genus Goniosoma. This is 

 undoubtedly the same as V. conradi, as Dr. Whitfield suggests. 



Veniella trigona Gabb, Proc. Acad. Nat. Sci., 1861, p. 324. 



The types are figured by Whitfield (pi. 19, figs. 11-14). 



Veniella subovalis " Conrad." 



As figured and described by Wliitfield {Mon. U. S. Geol. Sur., IX, 

 150, pi. 19, figs. 1, 2, 1885). 



Veniella trapezoides Conrad, Jour. Acad. Nat. Sci., IV, 2 ser., 282, pi. 47, f. 7, 1860. 



