32 CONCHYLIA-D/THYE^. 8. 



Shell nearly two inches long, and three broad, oblong-oval, con- 

 vex, abruptly cut oft' at the anterior end, and rounded at the other, 

 wrinkled transversely, covered with a tough brown or ochraceous 

 skin, which in perfect specimens extends three or four inches beyond 

 the truncated end : inside white. 



It is distinguished by the abrupt end, and the rounded tooth 

 which is slightly flexuous, but has no lateral projection or denticle. 



arenana. 

 2. 



My A testa ovatd, latere antico rotundato, dente rotundato cumdenticulo 

 laterali. 



fShell oval, rounded at the anterior end, with the tooth rounded 

 and furnished with a lateral denticle. 

 Mya arenaria. Linn. Syst. Nat. p. 1112. 



Gmelin, S'yst p. 3218. 



Turton, Linn. Syst. iv p. 175. 

 Chemnitz, vi. p. 10, tab. 1. fig. 3 and 4. 



Pennant, Br Zool. iv. p. 161, tab. 45. 



Montagu, Test. Brit. j). 30. 



Li7in Trans, viii. p 35. 



Turton, British Fauna, p. 146. 



Donovan, Brit. Shells iii. tab. 8. 



Dorset Catal, p. 28, tab. 4, fig 2. 



Wood, Conch, p. 91. tab. 17. fig. 3. 



DiUwyn, Descript. Catal. p. 42. 



Turton, Conch. Diet. p. 98. 

 CI ama arenaria Da Costa, Br. Couch, p. 232. 

 Chama lata. Lister, Conch, tab. 418, 419, fig. 262, 263. 



Mus. nost. Sand and gravelly shores. 



