56 



nitens 

 ). 



Ervilia. 



Mya nitens. 



Mus. yicmt. 



CO^Cn\UX~DlTHYRA. 19. 



Tab, nost. 19. fig. 4. 

 Montagu, Test. Brit, Suppl. p. 165. 

 Laskey, Wein. Soc. i. p. 375, tab. 8 fig. 4. 

 Wood, Conch, p. 101. 

 Dillwyn, Descript. Catal. p. 47. 

 Pennant, Brit. Zool. iv. p. 108. 

 Turton, Conch. Diet. p. 103. 

 On the Scotch coasts. 



Shell nearly a quarter of an inch long, and a little more in 

 breadth, of a glossy pink color, more or less softened down to white, 

 flattish, oval, a little tapering at the longer side and rounded at 

 both, finely and regularly striate transversely; beaks rather promi- 

 nent, not central: inside colored like the outside, but not so glossy, 

 with the margin entire : hinge with a single strong erect clovew 

 tootii in one valve, closing into a deep cleft between two smnl! 

 laminar divergent elevations in the other, besides an adjacent 

 cavity for the ligament in both valves- 



The Genus seems allied to the Crassatella of Lamarck. 



19. KELIAX— TURTON. 



Testa subglobosa, cequivalvis, clausa. Cardo valves allerius 

 dentibus diiobus approximaiis cum lalcrali remote, alterius 

 dente concavo cum laterali remoto. Ligame?itum internum. 



