162 CO^CRYLlk—niTHYRA. 37. 



Dillwyn, Descript. Catal. p. 169. 

 Pectunculus ruber. Lister, Conch, tab. 306, fig. 139. 

 Dredged iu the Firth of Forth, and Weymouth. 



Shell an inch and a quarter long, and one and a half broad, 

 convex, sloping to one end, with numerous close-set sharp 

 concentric ridges, of a greyish-white color witli two or three 

 [)urpIish-brown longitudinal rays ; inside wliite, inclining to 

 purple towards the margin : both the slopes purple. 



Its contour is much that of the Venus Gallina, but the teeth 

 are different, the margin is plain, and the slope on the anterior 

 side is not so well defined. 



cKoleia, Cytherea te.sfd orbieulo-cordatd depressu, sfriis franstersis 

 crebris capillaceis, area lineari, areola sublamellatu. 

 Shell orbicular heart-shaped and fiattish, with crowded transverse 

 capillary strife, the area linear and the areola somewhat 

 lamellar. 



, Tab. nost. 8, fig. 7. 

 Venus exoleta. Linn. Syst. Nat. p. 1 134. 

 Gmelin, Syst. p. 3284. 

 Turton, Linn. Syst. iv. p. 233. 

 Pennant, iv. p. 209, tab. 57, fig. 3. 

 Donovan, ii. tab. 42, fig. 1. 

 Montagu, Test. Brit. p. 116. 

 Linn. Trans, vi. tab. 17, fig. 9, 10. 

 Linn. Trans, viii. p. 87, tab. 3, fig. I. 

 Ttirton, British Fauna, p. 157. 

 Dorset Catal. p. ?5, tab. 8, fig. 5. 

 Dillwyn, Descript. Catal. p. 195. 



