HELICID.E. 145 



Turton, Man. ed. 1. f. 26.; Brard, p. 24. t. 1 f. 

 6., not Miiller ; Ferus. Prod. 43. 

 Helix pallida. Don. Br. Shell, t. 157. f. 2. 



In hedges in sandy and chalky districts. 



Animal grey, above warty, brown. 



Shell about three quarters of an inch in diameter, 



^g** irregularly striate transversely, thin and 

 ^EmM$)fijfrk nearly transparent, of a pale yellowish- 

 ^^?5|^r white or lead-colour, rufous about the 

 mouth and underneath ; the lower volu- 

 tion tumid and well rounded, not carinated, but mostly 

 marked with an obscure pale band in the middle ; 

 aperture semielliptic, as wide as long, with a thin but 

 not reflected margin ; the internal rib white or rosy ; 

 umbilicus small. 



The young shells are very pale, pellucid, and with 

 a rather hispid periostraca. 



From the Helix rufescens it may be distinguished — 

 1. by its greater size and convexity ; 2. in not being 

 so strongly and regularly striate ; 3. in wanting the 

 subcarinated ridge on the lower volution; 4. in the 

 umbilicus not being above half the size. 



Ferussac was at first inclined to consider this spe- 

 cies as distinct from any of the continental shells 

 (Journ. Phys. xc. 300.), but he afterwards considered 

 it as a local variety of H. Carthusiana of Drap. All 

 the French specimens I have seen are very different 

 from our shells, and I think they want further ex- 

 amination ; at any rate Lister's and Montagu's names 

 have the priority, and H. Carthusiana was used by 

 Miiller for another species, for which it should be 

 retained, 



H 



