VENUS. 175 



Venus turgens. Solander's MSS. 

 Venus corbicula. Gmelin, p. 3278. 

 Venus matadoa. Gmelin, p. 3282. 

 Venus, No. 15. Schroeter Einleitung, iii. p. 159. 

 Lister Conch, t. 251. f. 85. Adanson Senegal, t. 18. f. 5. 

 Knorr, v. t. 15. f. 2, and vi. t. 10. f. 5. Enc. Meth. t. 

 269. f. 3. 



Inhabits the coasts of Guinea, and the West India Islands. 

 Chemnitz. 



Shell about an inch and a half, both in length and breadth, and 

 obsoletely marked with transverse striae ; the colour is white 

 and shining, and rayed with reddish yellow, much in the 

 same manner as Mactra stultorum, but in shape it more re- 

 sembles V. tripla, to which it is nearly allied. 



tripla. 34. Shell triangular-heart-shaped, obtuse 

 at the ends, smooth, and the margin very en- 

 tire. 



Venus tripla. Linnccns Mantissa, p. 545. Chemnitz, vi. 



p. 328. t. 31. f. 330 to 332. Schroeter Einl. iii. p. 152. 



Gmelin, p. 3276. 

 LeTivel. Adanson Senegal, p. 239- t- 18. f. 4. 

 Lister Conch, t. 252. f. 86. Gualter, t. 75. f. Q. Enc. 



Method, t. 269- f. 4. 

 Inhabits the coasts of Africa. Lister. About the mouths of 



the Niger. Adanson. Guinea. Chemnitz. 

 The length and breadth are nearly equal, and vary from about 

 an inch to an inch and a quarter and the surface is smooth, 

 or marked only with minute transverse stria? ; tiie colour is 

 dirty white or pale grey, sometimes variegated with two or 

 three obsolete violet rays, and the inside is more or less 

 tinged with purple. 



triangularis. 35. Shell sub-triangular, with a 

 few transverse antiquated ridges, and the 

 margin entire ; hinge with three teeth in one 

 valve, and two, besides a semi-lunar lamina, 

 in the other. 



Venus triangularis. Montagu Test. p. 577- t. 17- f. 3. 

 Maton and Racket, in Lin. Trans, viii. p. 83. 

 This extremely rare shell was found on the coast of Devonshire, 



Montagu. 

 Mr. Montagu has given the following description of this species : 



" V. with a strong sub-triangular yellowish white shell, with 



