168 VENUS. 



at first sight one might be naturally led to consider it the 

 same ; it however differs in its contour, which is more trans- 

 versely ovate, and in having a crenulated margin. 



reflexa. 22. Shell sub-orbicular, with numerous 

 thin elevated distant transverse ribs, and the 

 interstices minutely striated longitudinally; 

 margin crenulated. 



Venus reflexa. Montagu. Supp. p. 40. and p. 168. 

 Venus undulata. Gmeiin, p. 3290. 

 Venus, No. 107. Schroeter Eini. iii. p. 187. 

 Gualter, t. lb. f. O. 

 Mr. Montagu describes his V. reflexa, to be an inch in dia- 

 meter, and rather broader than long, of a pale yellowish 

 brown, with two or three broken ferruginous rays, running 

 from the umbo to die opposite margin ; these interrupted 

 rays in some specimens are composed of six or seven spots, 

 which faintly resemble arrow heads, and point towards the 

 umbones; he says, the shell has somewhat the habit of V. 

 Galium, but is more orbicular in its contour, and has the 

 transverse ridges vastly more elevated, thinner, and more 

 distant. From Gmelin's description, I think there can be 

 no doubt that his V. undulata, though a badly constituted 

 species, is the same, but the name has been previously occu- 

 pied by Born, for V . textile of Gmeiin. 



gallina. 23. Shell somewhat heart-shaped, with 

 crowded membranaceous recurved transverse 

 striae ; umbones much recurved, and both 

 slopes nearly smooth ; margin crenulated. 



Venus Gallina. Li/nucus Syst. Nat. p. 1J30. Chemnitz, 



vi. p. 311. t. 30. f. 308 to 3i0. Schroeter Hint. iii. p. 



118. Gmeiin, p. 3270. Maton and Racket, in Lin. 



Trans, viii. p. 82. Dorset Cat. p. So. t. 8. f. 2. 

 Venus rugosa. Pennant Zoot. iv. p. 95 t. 06. f. 50. 

 Venus sinuata. Born. Mas. p. 62, and Vign. at p. 57. 



f. b. 

 Venus Lusitanica. Gmeiin, p. 3281. 

 Venus Casina. Solanders MSS. Pulteneys Dorset Cat. 



p. 33. 

 Venus striatula. Donovan, ii. t. (58. Montagu Test. p. 



113. 

 Pectunculus striatulus. Da Costa Brit. Conch, p. 191. t. 



12. f. 2. 

 Bonanni Rec. 2. f. 45, and Kirch, f. 44. Lister Conch. 



