194 BULLETIN OF THE 



Family ISOCARDIID^. 



ISOCARDIA Lamarck. 

 Subgenus MEIOCARDLV H. and A. A flams. 

 Meiocaxdia Agassizii Dall.* 



CALLOCARDIA A. Adams. 



Subgenus VESICOMYA Dall. 



Vesicomya subquadrata Jeflfreys.* 

 Vesicomya atlantica Smith. 

 Vesicomya pilula Dall. 

 Vesicomya venusta Dall. 



Family VENERID^. 



CYTHEREA Lamarck. 



Subgenus DIONE Megerle. 



Dione hebraea Lamarck. 

 Clone albida Qmelin. 



Section Veneriglossa Dall. 

 Dione (Veneriglossa) vesica Dall. 



VENUS (Linne') Deshayes. 

 Venus pilula Reeve. 



Subgenus CHIONE Megerle. 

 Chione pygmaea J amarck. 

 CUone Ccincellata Lamar..k. 



Family PETRICOLID^. 



PETRICOLA Lamarck. 

 Petricola diveiricata Chemnitz. 



Family TELLINIDiE. 



TELLINA Linne. 



Tellina Antoni Philippi. 

 Tellina squamifera Deshayes. 



