CONCHYLIA— D/THYB^. 24. 79 



* Valvis unidentatis. 1-2. 

 With a single tooth in each valve. 

 SoLEN testa recta, extremitate anticd conntricto-marginatd, dentibus Vagina. 



complanato-rotundatis. 

 Shell straight, margined by a stricture at the anterior end, with 

 the teeth flat and rounded. 



Tub noat. 6, fig. 4. 

 Solen Vagina. Lot». Syst. Nat. p. 1113. 



Gmelin. Syst, p. 3223. 

 Turton, Liun. Syst. iv. p. 180. 

 Pennant, iv. p. 171, tab. 49, fig. 1. 

 Chemnitz, vi. p. 40, tab. 4, fig. 26, 27. 

 Montagu, T^. 48 and 565, and Suppl. p. 25. 

 Linn. Trans, viii. p. 42. 

 Turton, British Fauna, p. 148. 

 Dorset Catal. p. 28, tab. 4, fig. 8. 

 Wood, Conch, p. 119, tab. 27. fig. 1. 

 Dillwyn, Descript. Catal. p. "7. 

 Turton, Conch. Diet. p. 159. 

 Solen margiuatus. Donovan, Brit. Shells iv. tab. 110. 

 Solan rectus brevior. Lister, tab. 410, and 1056, fig. 5. 

 Mus. nost. Western and Irish coasts. 



Shell hardly an inch long, and four or five broad, of a nearly 

 cylindrical form, covered with a yellowish skin which extends nearly 

 an inch beyond the hinder end, not divided diagonally like most of 

 the species : at the hinge end is a strong indenture or ligature, and 

 a thickened rib-like elevation on the inside. 



