CONCHYLIA— DITi/Yi?^. 36. 145 



Shell round heart-shajjed, with rather distant longitudinal rib-like 



strias crossing the more distant transverse ridges. 

 Venus subcordata. Montagu, Test. Brit. p. 121, tab. 3, fig. 1. 



Pennant, Brit. Zool. iv. p. 204. 



Linn. Trans viii. p. 82. 



Turton, British Fauna, p. 158. 



Dlllwyn, Descript. Catal. p. 166. 



Turton, Conch. Diet. p. 237. 

 Found by Montagu, in sand from Falmouth harbour. 



Shell a quarter of an inch in diameter, rather convex, white, 

 running nearly straight down the cartilage side, with remote trans- 

 verse ridges and strong raised longitudinal striae. 



From the Venus cancellata it differs, in the longitudinal ribs 

 passing over and cutting the transverse ones, giving it a regular 

 net-like appearance, the meshes of which are parallelograms or long 

 .squares ; the anterior side also slopes from the beaks to the point, 

 without forming an angle. 



6. 



Venus testa orbiculo-cordatd convexd, granulatim decussatd, area granulatn, 



incisd, lahus substriatis. 

 Shell round heart-shaped convex with granular decussations, the 



anterior slope deeply cut and the lips slightly striate. 

 Venus granulata. Gmelin, Syst. p. 3277. 



Turton, Linn. Syst. iv. ]). 226. 

 Montagu, Test. Brit. p. 122. 

 Donovan, British Shells, iii. tab. 83, 

 Pennant, Brit. Zool. iv. p. 207. 

 Turton, British Fauna, p. 158. 

 •. u 



