CONCHYLIA— l>irif}/2^. 44. 199^ 



solitary and free, sometimes attaclied by a byssus ; and reside in 

 deep waters, or amono; rocks and under stones. 



MoDioLA testd ohlongd la^ri, latere antico oblique dilatato, Modiolus. 



umbonibus tnmidis obtuse angnlatis. 

 Shell oblong smooth, with the anterior side obliquely dilated, the 



beaks tumid and obtusely angular. 



Tab. nost. 15, fig. 3. Young. 

 Mytilus Modiolus. Linn. Syst. Nat. p. 1158. 



Gmelin, Syst, p. 3354. 



Turton, Linn. Syst. iv. p. 293. 



Pennant, iv. p. 238, tab. 69. 



Va Costa, p. 219, tab. 15, fig. 5. 



Donovan, British Shells, i. tab. 23. 



Montagu, Test. Brit. p. 163. 



Linn. Trans, viii. p. 107. 



Turton, British Fauna, p. 164. 



Dorset Catal. p. 40, tab. 12, fig. 5. 



Dillwyn, Descript. Catal. p. 3J4. 



Turton, Conch. Diet. p. 1 II. 



Chemnitz, viii. p. 178, tab. 85, fig. 757, 759. 



Lister, Conch, tab. 1057, fig. 5. 

 Var. a. radiis violaceis vel rubescentibus. 

 with violet or pale red rays. 



Chetnnitz, viii. p. 182, tab. 85, fig. 758. 

 Var. b. margine postieo intorto. 



with the hinder margin curling inwards. 

 Mytilus unibilicatus. Pennant, iv. p. 228, tab. 68. 



Donovan, British Sliells, ii. tab. 40. 



