192 HELICID.?:. 



The H. limbata of Draparnaud has been introduced 

 into the list of our Mollusca on the authority of the late 

 Mr. G. B. Sowerby, in consequence of several specimens 

 having been once found on hedges near Hampstead. It 

 is about half the size of the last species, of a reddish- 

 brown colour, more conical and strongly striate, and it 

 has a very conspicuous white band encircling the peri- 

 phery. It inhabits the centre and South of France ; and 

 Terver has found it as far north as Rouen. Possibly it 

 may be rediscovered in this country and have its claim 

 to admission as a British species recognized. 



8. H. Cartusia'na *, Miiller. 



H. Cartusiana, Miill. Verm. Hist. pt. ii. p. 15. H. Carthusiana, F. & H. 

 iv. p. 51, pi. cxvi. f. 5, 6. 



Body rather narrow and much rounded in front, yellow or 

 saffron -colour, with a faint tinge of red ; tubercles close-set 

 and finely, but indistinctly, speckled with brown ; neck marked 

 with a short longitudinal black line which commences at the 

 base of the upper tentacles : mantle covered with minute milk- 

 white specks : tentacles long ; upper pair very slender ; bidbs 

 very small and nearly globular : foot somewhat rounded in 

 front and narrowing behind. 



Shell subconic, depressed above, rather more globular below, 

 somewhat solid and nearly opaque, not very glossy, yeUowish- 

 white, with a tint of fawn-colour or light-brown, and generally 

 marked with a white spiral band, which is placed a little 

 above the periphery and does not extend much beyond the 

 last half of the body whorl ; sculptui^e consisting of irregular 

 striaD in the line of growth, which are stronger towards the 

 suture and on the upper whorls, as well as of faint and in- 

 fhstinct spiral striae, which are only perceptible on the um- 

 bilical region and by the aid of a strong magnifying power ; 

 besides this striation, the surface of the lower or body whorl 

 is indented by crowded and indistinct pit-marks, giving it a 

 shagreened a^^pearance : epidermis rather thin: wliorls G-7, 

 compressed above and convex beneath, so as to make the 



* From its having been fii'st discovered near a Carthusian Monastery. 



