164 VENUS. 



Venus verrucosa. Linnaus Syst. Nat. p. 1130. Bom. 

 Mas. p. 60. t. 4. f. 7. Chemnitz, vi. p. 303. t. 29. f- 

 299 and 300. Schroeter Einl. iii. p. 1 14. Gmelin, p. 

 S269. Donovan, ii. t. 44. Montagu Test. p. 112. 

 Maton and Racket, in Lin. Trans, viii. p. 78. La- 

 marck Syst. des Anim. p. 123. Dorset Cat. p. 34. t. 8. 

 f. 1. 

 Venus Erycina. Pennant Brit. Zool. iv. p. 94. t. 54. 



f. 48. 

 Pectunculus strigatus. Da Costa Brit. Conch, p. 185. t. 



12. f. 1. 

 Lister Conch, t. 284. f. 122. Pettier Gaz. t. 93. f. 117. 

 Gualler, t. 75. f. H. Argenville, t. 21. f. Q. Favanne, 

 t. 47. f. E. 9. 

 Junior. Venus rugosa. Linnaus Mantissa, p. 545. ? 

 Inhabits the Southern coasts of Europe. Linnaus. England. 

 Lister, &)C Mediterranean. D'Avila. Naples. Sir. C. 

 Ulysses. 

 This species varies from an inch and a half to two inches and a 

 quarter long, and the breadth rather exceeds the length ; it is 

 a strong, thick, heavy, convex shell, with numerous strong, 

 elevated, somewhat recurved transverse ribs, which, when 

 the shell has arrived at maturity, are broken at both ends, 

 and particularly at the anterior, into irregular warty knobs ; 

 colour brownish white. Young shells have the transverse ribs 

 only slightly crenulated at the anterior end, are more convex, 

 and marked in the interstices of the ribs with longitudinal 

 stria?, which in old shells are still observable about the um- 

 bones. Gmelin considered V. rigida to be the Linnaean V. 

 rugosa, but the description in the Mantissa answers better to 

 a young shell, and Kaemmerer considered it to be a variety 

 of the present species. 



rigida. 13. Shell heart-shaped, ventricose, with 

 numerous transverse membranaceous reflect- 

 ed ribs, and the posterior depression kidney- 

 shaped; margin crenulated. 



Venus rigida. Solander's MSS. 



Venus rugosa orientalis. Chemnitz, vi. p. 308. t. 29. f. 303. 

 Venus rugosa. Gmelin, p. 3276. 

 Venus, No. 3. Schroeter Einleitung, iii. p. 154. 

 Pectunculus rigidus. Callones Cat. p. 48. No. 900. 

 Lister Conch, t. 286. f. 123. 

 Iuhabits the coast of Jamaica. Lister. Brazils. Solander. 

 West Indies. Humphreys. 



