196 CONCHYLIA— i>/TiiF«/l. 43 



Mussel, except in size, and in being furnished with loujjli trans 

 verse ridges. 



eduiis. Mytilus testu ovato-oblongd leevi, antice curcatd stibvarinatu , 

 umbonibus stibquadridentatis. 

 Shell oval-oblong smootli, curved and somewhat carinate on the 

 anterior side, with four or five teeth in the hinge. 

 Mytilus eduiis. Linn. Sysf. Nat. p. 1157. 



Gmelin, Syst. p 8353. 



Turton, Linn. Syst. iv. p. 291. 



Chemnitz, viii. p. 169, tab. 84, (ig. 750, 



Pennant, iv. p. 236, tab. 66, fig. 2. 



Donovan, iv tab. 128, fig 1 



Montagu, Test Brit. p. 159. 



Linn. Trans, vi. tab. 18, fig. 13, 14. 



Linn. Trans, viii. p. 105. 



Turton, British Fauna, p. 163. 



Dorset Catal. tab. 12, fig. 5, left hand 



Dillwyn, Descript Catal. p. 309. 



Turton Conch. Diet. p. 109. 

 Mytilus vulgaris. Da Costa, p. 216, tab. \5, fig. 5, left hand. 

 Musculus subcaeruleus. Lister, Conch, tab. 362, fig. 200. 

 Mus. nost. Common. 



A well-known species, subject to much variety of shape, ge- 

 nerally of a rich blue when the outer coat is taken off, sometimes 

 with an indenture or fold near the beak, as in tiie variety ot 

 Modiola Modiolus. 



