PLATE CXXXIV. 



CHAMA COR. 



HEART-SHAPED CHAM A, 

 GENERIC CHARACTER. 



Animal a Tethys. Shell bivalve, and rather coarse. Hinge with 

 a callous gibbosity, obliquely inserted into an oblique hollow : ante- 

 rior slope closed. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Shell subrotund, and smooth : beaks recurved : anterior slope 



gaping. 



Chama Cor : testa subrotunda laevi : natibus recurvatis rima hiante. 



Mus. LiicL Ulr. 516. w. 88 Gmd. St/sL Nat. 



T. I. p. 6. p. 3299. sp. 1. 



As an inhabitant of the Mediteiranean, the Adriatic, and Caspian 

 sea, this curious shell has been long since known ; but as a British 

 species has not been before described. It was discovered several years 

 ago in the seas about the islands in the North of Scotland, by Mr. 

 Agneu, Gardener to the late Duchess of Portland ; and since that 



g 2 



