146 CO^CRYLIA—DITHYRA. SO. 



Linn. Trans, viii. p. 85. 



Dillwyn, Descript. Catal. p. 171. 



Turton, Conch. Diet. p. 240. 

 Venus Marica spuria. Chemnitz, vi. p. 3 1 4, tab. 30, fig. 313. 

 Pectunculus parvus. Lister, Conch, tab. 338, fig. 175. 

 Fahnouth 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 cur- 

 ved, with an oval areola under them. 



fasciata. Venus testd orbiculo-cordatd compressd, costis transversis latis plana- 

 tis Icevibus. 

 Shell round heart-shaped compressed, with broad flat transverse 

 smooth ribs. 



Tab nost. 8. fig. 9. 

 Venus fasciata. Donovan, British Shells, iv. tab. 170. 

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

 Linn. Trans, viii. p. 80. 

 Turton, British Fauna, p. 156. 

 Dorset Catal. p. 34, tab. 7, fig. 3. 

 Dillwyn, Descript. Catal. p. 159. 

 Turton, Conch. Diet. p. 234. 

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

 Pectunculus fasciatus. Da Costa, vi. p. 188, tab. 13. fig. 3. 

 Mus. nost. Common on sandy shores. 



