454 CONIDiE. 



often suLdivided by longitudinal wrinkles. The body is 

 somewhat ventricose posteriorly ; its anterior attenuation 

 is gradual and convex. No sculpture adorns the mouth, 

 which fills more than one half of the ventral length. The 

 acute margin of the outer lip, after its distinct, though 

 shallow arched posterior emargination, advances with a 

 swell, and again recedes rather quickly at the anterior 

 extremity. The pure white enamel is widely spread over 

 the inner lip, whose edge is sinuous, being incurved rather 

 above the middle. The majority of specimens do not 

 exceed a third of an inch in length, and two lines in 

 breadth. The animal is unknown. 



This is a rare and local species, a member of the boreal 

 element of the British fauna. Its extra-British range is 

 not fully known, but is probably in great part coextensive 

 with that of turricula. In our seas it is very scarce. 

 Scarborough (Bean) in seventeen fathoms, off Whitburn ; 

 Northumberland (Howse) ; Aberdeen (Macgillivray) off 

 which coast it has been taken in from thirty to forty 

 fathoms (Thomas) ; in fifteen fathoms, Eda Sound, 

 Orkney (Thomas) ; in twelve and fifteen fathoms, He- 

 brides, and in fifty to sixty fathoms, Zetland, but dead 

 (M'Andrew and E.F.); Deal Voe, Zetland (Jeftreys). As 

 a fossil it occurs in the red and coralline crags. 



M. (Bela) rufa, Montagu. 



Coloured ; whorls convex, not distinctly scalar ; labial sinus 

 very obscure, if present. 



Plate CXII. fig. 3, 4, 5, and (Animal) Plate T.T. fig. 4. 



Mtircjc rvfus, (not of Lam.) Mont. Test. Brit. p. 263. — Maton and Rack. 

 Trans. Linn. Soc. vol. viii. p. 145. — Turt. Conch. Diction, 

 p. 93. — DiLLW. Recent Shells, vol. ii. p. 744. — Wood, Index 

 Testaceolog. pi. 27, f. 134. — Fleming, Ediiib. Encyc. pi. 205, 

 f. 1 (badly). 



