128 CONCHYLIA— D/TifYE^. 32. 



32. CATS A— LAMARCK. 



Testa transversa, eequivalvis, irKvquilateraUs ; latere antico obtuso, bre- 

 vissimo. Cardo dentibus duobus : lateralibus nullis. Ligamentum 

 externum, ad latus brevius. 



Shell transverse, equivalve, inequilateral ; with the anterior side 

 obtuse and very short. Hinge with two teeth in both valves : 

 lateral teeth none. Ligament external, at the shorter side. 



The individuals of this genus differ in no respect from the Donax, 

 except in wanting the lateral teeth. 



eastanea. 

 1. 



Capsa testa ovato-oblongd losvi eastanea, vittd longitudinali saturatiori 



subarcuatd, dente altera minimo. 

 Shell oval-oblong smooth pale chesnut, with a deeper slightly curv- 

 ed longitudinal band, and one of the teeth very small. 

 Tab. nost. 10, fig. 13. 

 Donax eastanea. Montagu, p. 573, tab. 17, fig. 2. 

 Pennant, Brit. Zool. iv. p. 199. 

 Linn. Trans, viii. p. 77. 

 Turton, British Fauna, p. 156. 

 Dillwyn, Descript. Catal. p. 152. 

 Turton, Conch. Diet. p. 42. 

 Mus. nost. From Penzance. 



Shell a quarter of an inch long, and nearly half an inch broad, 

 strong, glossy, of a reddish chesnut color, with a deeper longitudi- 

 nal band from the hinge which curves a little towards the longer 



