ADDITIONS. 



TORNATELL^A, Conrad. 



T. BELLA, C. — Jour. Acad. Nat. Sci., vol. iv., p. 294. 



T. LATA, [Actason,] C. — Amer. Jour. Conch. 1865. 



OsTREA MoRTONii, Gabb. — Proc. Acad. Nat. Sci., p. 829. 

 1861. 



NucuLAXA EQUALis [Nucula,) C. — Foss. Sliells of Tert. Form., 

 p. 46. 



N. onedia, Lea. — Cont. to Geol., p. 83, t. 3, fig. 62. 



Eburnecpeden, Conrad, p. 140, tliis number, is a synonym 

 of Gamptonectes, Agas. 



