CO^CIW LI A— niTHYRA. 36. 161 



Donovan, British Shells, i. tab. 17. 



Montagu, Test. Brit. p. 115, 



Linn. Trans, vi. tab. 17, fig. I, 2. 



Linn. Trans, viii. p, 84. 



Turton, Britisii Fauna, p. 157. 



Dorset Catal. p. 35, tab. 6, fig. 7. 



Dillwyn, Descript. Catal. p. 178. 



Turton, Conch. Diet. p. 239, 



Chemnitz, vi. p. 344, tab. 32, fig. 343. 

 Pectunculus glaber. Da Costa, p. 184, tab. 14, fig. 7. 

 Mus. nost. On the Western coasts. 



Shell three inches long, and nearly four broad, oblique, strong, 

 thick, covered with a smooth glossy chesnut skin, very sliglitly 

 striate, generally marked with darker rays and bands : beaks 

 nearer one end, oblique and curved, with both the impressions 

 smooth : inside glossy white. 



Lister's figure 105, at plate 269, is fossile. 



Cytherea testa oblique cordatu, lamellis transversis subimbri- Ouiueensis 



cutis, areold cordatu. 

 Shell obliquely heart-shaped, with transverse somewhat imbri- 

 cate plates, and the areola heart-shaped. 

 Venus Guineensis. Gmelin, Syst. p. 3270. 



Turton, Linn, Syst. iv. p. 220. 

 Montagu, Suppl. p. 48 and 168. 

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

 Dorset Catal. p. 35. 

 Turton, Conch, Diet, p, 237. 

 Venus circinata. Chemnitz, vi, p. 312, tab, -30, fig. 311, 312, 



Y 



