<2l6 CARDIUM. 



PRICKLY COCKLE. 

 PL 51./. 2, 3. Mrs. Mawe. 



14. Cardium muricatum. C. testa subcordata, sulcata, lateribus muri- 



cata. Linn. Syst. Nat. ed. 12. p. 1123. Linn. Gmel. 3250. 

 Shell somewhat heart-shaped, grooved, and prickly at the sides. 

 Testa cordato-ovata, subobliqua, cortis 36, lateribus lamelloso muricatis, 



marginibus utrinque sanguieneis. Brug. Encyc. Meth. Hist. Nat. 6. 



p. 233. 

 List. Conch, pi. 322. f. 159. Knorr Vergn. 4. pi. 14. f. 5. Chem. Conch. 



6. pi. 17. f. 177. 

 /3. List. Conch, pi. 326. f. 163. Chem. Conch. 6. pi. 17. f. 178. 



An oblong shell, of a cinereous, white, or yellowish 

 colour, mixed, or spotted with red, the anterior side 

 edged with scarlet ; the ribs are thirty-six in number, 

 on twelve of which the spines lean towards the posterior 

 side of the shell, the rest recline in a contrary direction; 

 the margin is denticulated, but the teeth are largest, and 

 most open, at the anterior edge. The inside is white, 

 with a tinge of scarlet at the anterior edge, and, some- 

 times, one or two brown, or orange stains near the 

 hinge ; the principal primary tooth pointed, and some- 

 what incurvated; the lateral teeth as usual. Length 

 about two inches and a quarter ; breadth, two inches. 



This is one of the prettiest shells of the American 

 ocean, both on account of the colours with which it is 

 variegated, and the regular reclined disposition of the 

 spines with which it is covered. It is found on the 

 coasts of Jamaica, and St. Domingo. 



