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Ifame. 



Cyclas elegans Adams. 



nitida Mighels. 



minor Adams. 



altilis Anthony, 

 Cyrena Carolinensis Say. 

 Cyprina Islandica Lam. 

 Cytherea concentrica Lam. 



gigantea Lam. 



florida Lam. 



occulta Say. 



convexa Say. 

 Venus elevata Say. 



exalbida Chemn. 



fluctuosa Gould. 



gemma Totten. 



inequalis Say. 



Mortoni Conrad. 



mercenaria Linn, 



notata Say. 



praeparca Say. 

 Cardium fasoiatum Mont. 



Groenlandicum Gmelin, 



Islandicum Gmelin. 



Mortoni Conrad. 



pinnulatum Conrad. 



muricatum Linn. 



ventricosum Brug. 

 Cardita borealis Conrad. 



incrassata Sowerby. 



tridentata Say. 

 Area ponderosa Say. 



pexata Say. 



incongrua Say. 



transversa Say. 



zebra Say. 

 Nucula Jacksonii Gould. 



limatula Say. 



minuta Gould. 



myalis Couth. 



navicularis Couth. 



proxima Say. 



sapotilla Gould. 



tenuis Gould. 



thraciaeformis Storer. 



delphinodonta Mighels. 



Locality. 

 Vermont. 

 Maine ? 

 Maine ? 

 Ohio. 



South Carolina- 

 Rhode Island. 

 Virginia. 

 Florida. 

 Florida. 



Southern States. 

 New York. 

 South Carolina. 

 Apalachicola bay. 

 Massachusetts bay. 

 Long Island. 

 Virginia. 

 Virginia. 

 New York. 

 New York. 

 Cape Cod. 

 South Carolina. 

 Maine. 

 Maine. 



Rhode Island. 

 Massachusetts bay. 

 South Carolina. 

 South Carolina. 

 Massachusetts bay. 

 Florida. 

 South Carolina. 

 Florida. 

 New York. 

 Georgia. 

 New York. 

 Florida. 

 Maine. 



New York bay. 

 Nahant. 



Massachusetts bay. 

 Plymouth, Mass. 

 New Bedford. 

 Cape Cod. 

 Massachusetts bay. 

 Stomach of fish. 

 Maine. 



