Class VI. VENUS. VENUS-SHELL. 209 



Lin. Tr. viii. 86. Mo7it. Test. Br. 118. 23. undata. 



waved. 



V. with thin convex orbiculated shells, of a 

 white color tinged with yellow, and marked with 

 thin concentric stricE ; waved at the edges. 

 Size of a hazel nut. Tab. Iviii. fig. 3. 



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

 Gm. Lin. 3284. Mont. Test. Br. 1 16, antiquated. 



V. with orbicular shells, with numerous trans- 

 versal stria ; white, glossy. 



Diameter about two inches. Tab. Xix.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. Ivii. Jig. 3. 



Common. 



Mont. Test. Br. Sup. 43. ^. 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 



