PLATE XLIV. 



Clonisse de la Mediterranee oTAvila. Cab. p. 333. No. 762. 

 Venus Erycina, Sicilian. Perm. Brit. Zool. No. 48. tab. 54. fig. 48. 

 Cornwall heart cockle, with rugged girdles. Petiv. Gazoph. tab. 93. 



fig- yi- 



Tectunculus crassissimus strigatus, strigis ex latere bullatis, strigatus, 

 ridged. Da Costa Br. Conch, p. 185. sp. 3. 

 Tab. 12. fg. l.l. 



Da Costa says, " this species is rare in our seas. The shores of 

 Cornwall afford them, and they have been got in Devonshire and 

 Dorsetshire." They have also been found on the eastern coast of 

 Sussex, but not frequently. 



