Class VI. VENUS. VENUS-SHELL. 205 



List. Conch, tab. 282. V. striatula. Mont. Test. j2. CALLINA. 



Gm. Lin. 3270. Br. 1 13. wrinkled. 



Lin. Tr. viii. 82. V. rugosa. Br. Zool. iv. 

 - 95. ■ 



V. with thick shells, marked A\ith rugose con- 

 centric St rice ; length an inch, breadth an inch 

 and a quarter. 



A variety, with stri(£ less elevated, and mark- 

 ed with yelloAvish ziggag lines. List. Conch. 

 282. Tab. lix.Jig. 2. ' ' 



Lin. Tr. vlii. 83. Mo)it. Test. Br. 577- id. 13. triangU"* 



Sup. t. 17./. 3. . LARIS. 



* V. with a somewhat triangular shell ; hinge 

 strong; one valve has three teeth, the other 

 two, and a crescent-shaped, lateral thin plate ; 

 diameter half an inch. 



Found by Mr. Montagu on the coast of 

 Devonshire ; very scarce. 



Lin. Syst. 1131. No. 123. i?«. TV. viii. 83. 14. islan= 



Gm. Lin. 3271- Munt. Test. Br. 114. dica. 



Faun. Suec. No. 2144. List. V. mercenaria. Br. Zool. iv. Iceland. 

 Angl. tah. iv. fg. 22. 94. 



Conch, tah. 272. 



V. with a strong, thick, weighty sliell, covered 

 with a brown epiderwis ; jiurc white within ; 



