1905.] NATURAL SCIENCES OF PHILADELPHIA. 17 



DONAGID^. 



Donaz fordii Conrad, Amer. Jour. Conch., V, 102, pi. 9. f. 27, 1869; Whitfield, Men. U. S. Geol. 

 Sur., 171, pi. 23. f. 1. 



Dr. Whitfield doubts whether the specimen he figures is the same as 

 Conrad's. 



SOLENID^. 



Leptosolen biplicata (Conrad). 



Siliquaria biplicata Conr., Jour. Acad. Nat. Sci., Ill, 2 ser., 324, pi. 34, f. 17, 

 1858. 



Type of the genus Leptosolen Conr. {Am. Jour. Conch.), Ill, 15, 188, 

 1867). 



Solyma lineolata Conrad, Am. Jour. Conch., VI, 75, pi. 3, f. 9, 1871. 



Type of the genus. 



Siliqua cretacea (Gabb). 



Cultellus cretacea Gabb, Jour. Acad. Nat. Sci., 2 ser,, IV, 303, pi. 48, f. 24, 

 1860. 



Legumen planulatum (Conrad). 



Solemya planulata Conr., Jour. Acad. Nat. Sci., II, 2 ser., 274, pi. 24, f. 11 

 1853. 



Legumen appressum Conrad, Jour. Acad. Nat. Sci., Ill, 325, 1858. 



Specimens figured by "\\Tiitfield (pi. XXV, figs. 6-8). 



Legumen elliptioum Conrad, Jour. Acad. Nat. Sci., Ill, 325, pi. 34, f. 19, 1858. 



Also figured by Whitfield (pi. 25, f. 5); probably the same as L. 

 planulatum. 



MACTRID^. 

 Cymbophora lintea (Conrad). 



Cardium (Protocardia) lintea Conr., Jour. Acad. Nat. Sci., IV, 2 ser., 278, pi. 



46. f. 7, 1860. 

 Veleda lintea Conr., Amer. Jour. Conch., VI, 74, 1870. 



Specimen figured by Whitfield (pi. 23, figs. 20, 21). The type of 

 Conrad's genus Veleda. 

 Schizodesma appressa Gabb, Proc. Acad. Nat. Sci.. 1876, 306. 



CORBULIDiE. 

 Corbula crassiplica Gtibb, Jour. Acad. Nat. Si., IV, 2 ser., 394, pi. 68, f. 25, 1860. 



Specimen figm-ed by Whitfield (pi. 23, f. 30). 



Corbula foulkei Lea, Proc. Acad. Nat. Sci., 1861, 149. 



Specimens figured by Whitfield (pi. 23, figs. 27-29) are undoubtedly 

 the same as Conrad's C. bisidcata from Snow Hill, North Carolina. 



Corbula subcompressa Gabb, Jour. Acad. Nat. Sci., 2 ser., IV, 394, pi. 48, f. 24. 



The specimen figured by Whitfield (pi. 23, fig. 26) is not the type 

 or one figured by Gabb. 



