CONCHYLIA— D/THYi?^. 31. 123 



This genus and the next, as in the Tellina, have the ligamnt 

 placed on the shorter side ; hut they want the flexuosity at the pro- 

 duced end, and are also distinguished by their wedge-shaped and 

 somewhat triangular contour, in consequence of the abrupt termi- 

 nation on the cartilage side. 



Some of them have a single lateral tooth, and others have a lateral 

 tooth on each side of the primary ones. 



* Margine interno denticulato. 1-2. 

 With the internal margin toothed. 



DoNAX tesid oblongo-cuneatd, striis longitudinalibus minutis leevihus, Trunculus. 



area anticd leevi. ^ 



bhell oblong and wedge-shaped, with minute smooth longitudinal 



striae, and the anterior sloj)e smooth. 

 Bonax Trunculus. Linn. Syst. Nat. p. 1227. 



Gmelin, Syst. p. 3263. 



Turton, Linn. Syst. iv. p. 214. 



Chemnitz, vi. p. 259, tab. 26, fig. 253, 254. 



Pennant, iv. p. 198, tab. 58, fig. 1. 



Montagu, Test. Brit. p. 103. 



Linn. Trans, viii. p. 74. 



Turton, British Fauna, p. 156. 



Dorset Catal. p. 33, tab. 6, fig. 3. 



Donovan, 1. tab. 29, fig. 1. 



Dillwyn, Descript. Catal. p. 150. 



Turton, Conch. Diet. p. 41. 

 Cuneus vittatus. Da Costa, p. 107, tab. 14, fig. 3. 



q2 



