82 



7. 

 Elongatum, C. with a comprefTed, fub-oval, fub-angulated fhell, of 



a yellov/ifh-white or light rufous colour; with twenty one 

 ribs, faintly wrinkled and rounded; umbo not central; 

 poRerior fide fomewhat elongated, and angulaied. Di- 

 ameter a quarter of an inch. 



We found this new fpecies by dredging in Salcomb bay, 

 but fparingly. 



ExiGuuM. Cardium exiguum, Gmel. Syfl. p. 3255. 37. 



Lifter Conch, t. 317. f. 15'i. 

 IValL Mill. Shells. L S3. 

 Cardium pygmaeum. Don. Br. Shells, i. t. 32. f. 3. 

 Turt. Lin. iv, p. 207. 



C. with a very convex, fub-triangular, fub-cordated^ 

 white fliell, with about twenty tuberculated ribs, the in-" 

 terflices ftrongly ftriated tranfverfely : anterior fide much 

 floped, running into an angle nearly oppofite the umbo. 

 Old fliells lofethe tubercles and become wrinkled all over. 

 Infide fmooth, white, frequently rufous at the angulated 

 fide; margin denticulated. Length from the beak to the 

 projefting angle of the front margin rather Taht& than 

 half an inch; breadth nearly the fame. 



We have found this fpecies in great abundance at Fal- 

 mouth m fand from the harbour; and not uncommon at 

 Salcomb, in Dcvonjliire. Have alio received it from Mr. 

 Boys, fonnd on the coafl. o[ Sandxvick fparingly. 



Cardium 



