CONCHYLIA—Di Ti/y/e^. 31. 123 



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

 placed on the shorter side ; but they want the flexuosity at the 

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

 and somewhat triangular contour, in consequence of the abrupt 

 termination on the cartilase 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 testd oblong o-cuneatd, striis longitudinalibus minulis Truncuim 



IcEvibus, ared anticd Icevi. 

 Shell oblong and wedge-shaped, with minute smooth longitudinal 



striae, and the anterior slope smooth. 

 Donax Trunculus. Linn. Syst. Nat. p. 1227. 



Gmelin, Syst. p. 3263. 



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



Chemnitz, vi. p. 259, tab. 26, fig. 253, 25i. 



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



Montagu, Test. Brit. p. 103. 



liinn. Trans, viii. ji. 74. 



Turton, British Fauna, p. 156. 



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



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



Dillwyn, Descript. Catal. p. 150. 



Turton, Conch. Diet. p. 41. 

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



Q 2 



