94 



cordiform fliape, when the whole (liell is viewed fidcways. 

 Hinge not quite central ; teeth fiinilar to the preceding 

 fpccies. Infide fmooth, yellowifli-white. 



This has frequently been fuppofed a mere variety of 

 the M. folida, and has been generally placed as fuch in 

 cabinets. Da Costa's defcription of it is very good. It 

 is found in HampPnre, and we have picked it up on feve- 

 ral parts of the Ibuth Devon coaft. It feldom grows to 

 half the fize of the/o/f<id^. Length rarely more than three- 

 quarters of an inch ; breadth an inch, and commonly 

 much lefs. 



When compared with the Maclra folida of the fame 

 fize, it will be found to be more convex and angulated : 

 the umbo larger : fides from the beak more ftraight, and 

 turned inwards, and one end more produced. 



Mr. Pennant has given a very good figure of this 

 fliell; but has crroneoufly made it the Mantra Stidtorum 



of LiNNyEUS. 



3. 

 Stultorum, Maftra Stultorum. Lin. Syji. p. 1226. 99. 



Gmel. Syji.p. 325S. U. 

 C/iem. Conch, vi. t 23. f. 224. 226. 

 Lifter Conch, t. 25 1 . f. S5. 

 Pult. Cat.BorJet.^. 3l.— Turt.Lin.iv.2U. 

 Tellina radiata. Br. Zool. t. 49. f. 30. 

 Tiigonella radiata. Da Cofta. p. 196. t. 12. f. 3. 3. 



M. with 



