156 DONAX. 



anterior margin, with the cleft by the cartilage gaping, and 

 ending on both sides in a compressed tooth. 



straminea. 19. Shell somewhat wedge-shaped, 

 ridged transversely, and at the anterior end 

 cancellated; hinge with two lateral teeth in 

 each valve, and the margin very entire at the 

 posterior end. 

 Donax straminea. Gme/in, p. 3266. 

 Donax, No. 12. Schroeter Einl. iii. p. 105. t. 8. f. 4. 



Inhabits 



Schroeter describes this shell to be more than an inch long, 

 and only three quarters broad, of a straw colour, with 

 darker transverse bands, the margin tawny, and the urn- 

 bones reddish ; the inside flesh-coloured, becoming violet 

 towards the margin; anterior slope transversely wrinkled, 

 and finely striated longitudinally. 



Candida. 20. Shell roundish wedge-shaped, thin, 

 brittle, and slightly striated transversely ; 

 hinge with three primary teeth in each valve, 

 and the margin very entire. 



Donax Candida. Schroeter Einl. iii. p. 106. No. 13. t. 8. 

 f. 5. Gmelin, p. 3266. 



Inhabits the coasts of Tranquebar. Schroeter. 



Schroeter describes D. Candida, whose claim to stand in the 

 genus appears very doubtful, to be about three quarters of 

 an inch long, and but very little more than three quarters of 

 an inch broad ; thin, brittle, convex, white, marked with a 

 few concentric striae becoming oblique at one end, and 

 wrinkled towards the margin ; hinge with three primary, and 

 one lateral tooth in each valve. 



irus. 21. Shell rhomboidal, with remote transverse 

 erect membranaceous ridges, and the margin 

 entire. 



Donax Irus. Linnaus Si/st. Nat. p. 1128. Chemnitz, vi. 



p. 271. t. 26. f. 268 to 270. Schroeter Einl. iii. p. 100. 



Gmelin, p. 3265. Donovan, i. t. 29. f. 2. Montagu 



Test. p. 108 and 573. Maton and Racket, in Lin. 



Trans, viii. p. 77. Dorset Cat. p. 34. t. 12. f. 6. 



Brooks's Introd. p. 64. t. 2. f. 22. 

 Tellina cornubiensis. Pennant Zool. iv. p. 89. 



