218 CHAM A. 



Cardita variegata. Bruguiere Enc. Method, p. 407. La- 

 marck Syst. des Anim. p. 118. 

 Lister Conch, t. 347- f. 184. Favanne, t. 50. f. L. Enc. 

 Method, t. 233. f. 6. 



Variety. Slightly elongated, and the sides less convex. 

 Cardita calyculata. Bruguiere Enc. Meth. p. 408. 

 Chama elongata. Solander's MSS. 

 Le Jeson. Adanson Senegal, p. 215. t. 15. f. 8. 

 Gua/ter, t. 90. f. F. Chemnitz, xi. t. 204. f. 1999 and 

 2000. 



Inhabits the East Indian Seas, and the variety is found only in 

 the Mediterranean and Red Sea, and oil the coasts of Se- 

 negal. Bruguiere. 



Shell about seventeen lines long, and eleven broad, white, 

 variegated with purplish brown spots ; the variety is a trifle 

 longer, and rather narrower in proportion, has the sides 

 straighter, and the margin less distinctly plaited, but the dif- 

 ference is very small, and probably only arises from the 

 effect of a different climate. 



cordata. 11. Shell heart-shaped, transversely stria- 

 ted, compressed, and elongated on one side. 



Chama cordata. Linnaus Syst. Nat. p. 1138. Gmelin, 

 p. 3301. 



Inhabits 



Linnaeus, who alone has described this species, says, it is of a 

 testaceous colour, with transverse distinct obtuse grooves on 

 the lower part, but not towards the exterior margin, and has 

 the angle between the cartilage cleft and the exterior margin 

 elongated, and darker. 



satiata. 12. Shell roundish, with toothed grooves, 

 mixed with dots, and the posterior depression 

 retuse. 



Chama satiata. Linnceus Syst. Nat. p. 1138. Gmelin, p. 

 3301. 



Inhabits 



No subsequent author has ascertained this species, which Lin- 

 naeus describes to be white, with a tinge of red on the out- 

 side ; grooves elevated, longitudinally toothed, and alter- 

 nately shorter ; margin crenulated ; posterior depression cor- 

 diform and retuse. The description may probably have been 

 taken, as Dr. Solander conjectured, from a worn shell of 

 C. arcinella, which had lost its spines. 



