NORTH AMERICAN CONCIIOLOGY. 



215 



Xamo. 



Solecurtiis caribasus Bhiin. 



Mya acuta Stiij. 



Lutraria canaliculata Sdy. 



lineata Sdij. 

 Mactra fragilis. 



lateralis >'"//. 



oblonga Soij. 



similis Say. 

 Amphidesma equalis Say, 



orbiculata Say. 



punctata Scry. 



radiata Say. 



transversa Say. 

 Corbula contracta Say. 

 Saxicava distorta Say. 

 PetricolapholadifirmisZa?ft. 



dactylus Say. 

 Psammobia fusca Say. 

 Sanguinolaria rugosa Lam. 

 Tellina alternata S"y. 



brevifrons Say. 



flexuosa Say. 



iris Say. 



mera Say. 



polita Say. 



tenuis Say. 

 Lucina divaricata Lam. 

 Donax variabilis Say. 

 Cyclas partumeia Say. 

 Cyrena Carolinensis Say. 

 Cytherea occulata Say. 



concentrica Lam. 

 Venus mercenaria Linn. 



elevata Say. 



notata Say. 



praeparca Say. 

 Cardium muricatum Linn. 



ventricosum /,«/«. 

 Area incongrua Say. 



pexata Say. 



ponderosa Say, 



transversa Say. 



zebra Say. 

 Unio alatus Say. 



aratus (uew) Conr. 



