560 Shells. 



Pholas Lin. 



one or more species. 

 Solen Lin. 



ensis, Lin. 



viridis, Say. 

 Solecurtus Blain. 



cariboeus, Lam. 



costatus, Say. 



fragilis, Dill, centralis of Say. 

 My a Lin. 



mercenaria, Lin. 



hyalina, Conrad. 

 Anatina Lam. 



convexa, Wood. A. Thracia ? of Blain. 



leana, Conrad. 

 Mactra Lin. 



solidissima, Chcm. 



lateralis, Say. 



arclata, Conrad. 



tellinoides, Conrad. 



one or more other species. 

 Solemya Lam. 



velum ? Say. 



one other species. 

 Corbula Lam. 



contracta, Say. 

 Pandora Lam. 



trilineata, Say. 

 Saxicava Lam. 



distorta, Say. 

 Petricola Lam. 



pholadiformis, Lam. 

 Sanguinolaria Lam. 



fusca, Say. 

 Tellina Lin. 



two or more species. 

 Lucina Brug. 



divaricata, Gmel. 



and a larger species. 

 Astarte Sowerby. 



castanea, Say. 

 Cyclas Brug. 



two or more species. 

 Cyprina Lam. 



Islandica? Lin, 

 Cytherea Lam. 



convexa, Say. 

 Venus Lin. 



mercenaria, Lin. 



notata, Say. 

 Cardium Lin. 



Mortoni, Conrad. 



pinnulatum, Conrad. 



