Class VI. VENUS. VENUS-SHELL. 209 



Lin. Tr. viii. 86. Mont. Test. Br. 118. 23. undata. 



waved. 



V. with thin convex orbiculated shells, of a 

 white color tinged with yellow, and marked with 

 thin concentric stritE ; waved at the edges. 

 Size of a hazel nut. Tab. lviii. Jig. 3. 



Lin. Syst. 1134. No. 142. Lin. Tr. viii. 87. t. 3.f. 1. 24. exoleta. 

 Gm. Lin. 3284. Mont. Test. Br. 116. antiquated. 



V. with orbicular shells, with numerous trans- 

 versal strice ; white, glossy. 



Diameter about two inches. Tab. Wx.Jig. 1. 



Variety of the same, marked strongly with 

 numerous strice, and longitudinally with a few 

 short yellowish lines. Vide List. Conch, tab. 

 292, 293. Tab. lvii. Jig. 3. 



Common. 



Mont. Test. Br. Sup. 43. t. 26. /. 1. 1. 1. 25. com- 



PRESSA. 



* V. with a strong, suborbicular, compressed 

 shell, irregularly wrinkled, white; beak pro- 

 minent, oblique, with two large hinge-teeth in 

 each valve ; diameter from half to one inch. 



Dunbar. 

 vol. iv. p 



