260 



lour, andfomewhat glofTy; with fevcn longitudinal ridges, 

 that run the whole length, fcarcely interrupted by the fe- 

 paratingline: the fides, or fpace between the ribs, are but 

 litile concave, which gives the fhell a heptagonal appear- 

 ance: aperture oblong-oval, endingin afliort canal; outer 

 lip (harp at the edge, thickened at the back by a ridge, 

 the upper part contracted to an angle, where the margin 

 is a little indented; pillar lip a little replicated. Length 

 five-eighths of an inch; breadth two-eighths; but rarely 

 fo large. 



Sometimes this fliell is white at the jun6lion of each 

 volution; worn fpecimens are dull, opaque white. 



We found tliis rare fpecies firft at Falmouth, and fince 

 alive in Salcomb bay, taken by dredging. 



Have alfo received it, amongft fome fmall fhells, from 

 Mr. Bryer, who found it at Weymouth. 



16. 

 Murex fufcatus. Lin- Syfi. p. 1225. Fuscatus. 



Ginel. Syji. p. S562. 145. 



Gualt. t.56.H. 



Lifter Conch. X.. 121. 17. 



Pult. Cat. Dorfct. p. 43. 



Turt. Lin. iv. p. 458. 

 Turbo- tuberculata. Br. Zool t. 82. f. 1 1 1* ? 



Turt. Lin. iv. p. 49i-. 



M. with. 



