Class VI. VENUS. VENUS-SHELL. 207 



Gm. Lin. 3270. Mont. Test. Br. Sup. 48. 17. gtjineen- 



sis. 



* V. with a subcordate cinereous shell, white 

 within ; ridges numerous, close, regular, sharp ; 



margin entire. 



Abbs Head in the Frith of Forth. 



Lin. Syst. 1133. No. 132. Mont. Test. Br. 123. t. 3. 18. deflo- 



Gm. Lin. 3274. /. 4. J? *T A ' 



kf». TV. viii. 85. *" g ' 



V. with thin oval shells, striated lengthways, 

 semipellucid ; rayed with purple and white, 

 both within and without. Size near an inch 

 and a half in breadth. Tab. lx. Jig. 3. 



Gm. Lin. 3277- Mont. Test. Br. 122. jg # GRAND . 



Lin. Tr. viii. 85. lata. 



* V. with a somewhat orbicular shell ; ridges 

 net-like or decussated ; the edge crenulated ; a 

 blackish heart-shaped depression near the hinge ; 

 diameter one inch. 



Found on the coast of Llyn, and at Fal- 

 mouth. 



