CARDIUM. 209 



point of the opposite tooth. Length about two inches ; 

 breadth about two and a quarter. 



Inhabits the Northern ocean, and is common on most 

 of the British shores. Live shells are seldom taken, 

 except by dredging. 



The C. echinatum was first noticed by Lister, whose 

 figure is very accurate. The Linnaean reference to 

 Gualtieri, pi. 72. f. B. is wrong, that shell is a young 

 specimen of the C. aculeatum. The C. ciliatum Linn. 

 Gmel. p. 3248. No. 10. is the C. echinatum in a young 

 state. 



FRINGED COCKLE. 

 PL 49. /. 3, 4. Mr. Sowerby. 



3. Cardiuni ciliare. C. testa subcordata, costis elevatis triquetris, extimis 



aculeato-ciliatis. Linn. Syst. Nat. ed. 12. p. 1122. Linn. Gmel. 



p. 3248. 

 Shell somewhat heart shaped ; ribs raised and triangular, with thin spines 



at the end. 

 List. Conch, pi. 325. f. 162. Gualt. Test. pi. 72. f. C. Knorr Vergn. 



6. pi. 5. f. 5. Penn. Brit. Zool. 1812. 4. pi. 53. f. 2. Chem. Conch. 



6. pi. 17. f. 171, 172. Encyclop. Method, pi. 298. f. 4. Pult. in Hutch. 



Dorset, pi. 4. f. 1. Donov. Brit. Shells, pi. 32. f. 2. Mont. Test. 



Brit. p. 79, Linn. Trans. 8. p. 64. 



A very thin, orbicular shell, of a white, or yellowish 

 colour, with about nineteen sharp ribs, crowned with 

 flat triangular spines ; the furrows are smooth, flat, and 

 glossy. Length seven eighths of an inch ; breadth an 

 inch. 



Inhabits the European and Mediterranean seas. It is 

 rare in England, but has been found on the Dorset coast, 

 by Dr. Pulteney, and in Cornwall and Devonshire, by 



vol. i. p 



