PLATE CXXXIV. 



time, a specimen of it was dredged up, by T. Swainson, Esq. of the 

 Custom-house, London. 



It is a delicate shell, and represented in the annexed plate of the 

 natural size. By some it is called the Bull's-heart Cockle, but very 

 improperly, because it cannot be considered in any manner of the 

 Cardium genus. 



