40 



SYNONYME. 



Cardita ixcrassatus, Sow. in Tankerville Cata- 

 alogue, JYo. 400. 

 Cardita, Unc. Method. PL 233, Jig. 3. 



Cabinet of the Acad. Nat. Sciences, No. 1413. 



OBSERVATIONS. 



A species allied to Chama antiquata, Lin, ( Car- 

 dita sulcata, Briig. et Lam.) with which it had long 

 been confounded before G. B. Sowerby described it 

 as distinct. The figures in the Encyclopedie Me- 

 thodiqucj referred to as representing this species, 

 are quoted by Lamarck as doubtful or incorrect fig- 

 ures of Cardita sulcata ; they are, however excellent 

 representations of the elongated variety of the shell 

 here figured and described as the C. incrassata. 



Not an uncommon shell from the East Indies ; it 

 introduced as inhabiting our coast on the authority 

 of a single specimen in Mr. Hyde's cabinet, from the 

 Florida coast. 



