U6 CONCHYU A— DITHYRA. 36. 



Linn. Trans, viii p. 85. 



Dillwyn, Descript. Catal. p. J 71. 



Turton, Concli. Diet. p. 240. 

 Venus Maiica spuria. Chemnitz, vi. p. 314, tab. 30, fi^^ 3l3. 

 Pectuiiculus parvus. Lister, Couch, lab. ^38, fig. 175. 

 Falmouth harbour, and North Britain. 



Shell seven-eighths of an inch long, and an inch broad, thick, 

 convex, strongly ribbed both longitudinally and transversely, 

 forming a distinctly granulated surface: color white, with 

 chocolate-brown spots and streaks, inside dark purple: beaks 

 prominent, much curved, with an oval areola under them. 



Venus testd orbiculo-cordatii compressd, costis transversis 



latis planatis IcBvihus. 

 Siiell round heart-shaped compressed, with broad flat transverse 



smooth ribs. 



Tab. nosl. 8. fig. 9. 

 faseiata. Venus fasciata. Donovan, British Shells, v. tab. 170. 

 ''• Pennant, Brit. Zool. iv. p. 203. 



Linn Trans, viii. p. 80. 

 Turton, B;itish Fauna, p. 156. 

 Dorset Catal. p, 31. tab. 7, fig, 3. 

 Dillwyn, Descript. Catal. p. 159. 

 Turton, Conch. Diet. p. 234. 

 Venus Paphia. Montagu, Test. Brit. p. 110. 

 Pectunculus faseiatu.s. Da Costa, p. 188, tab. 13, fig. 3, 

 Mas. nost. Common on sandy slioies. 



