HELIX. 61 



or pinkish flesh-colour, acute at the edge, only reflected 

 near the columella, where it is dilated, but does not at all 

 conceal the perforation. Base moderately convex ; umbi- 

 licus deep, large at its commencement, but contracted by 

 the penult whorl. 



About three-eighths of an inch is the ordinary diameter; 

 one of our larger specimens measures more than five lines. 



The animal is pale grey; silvery and slightly brown on 

 the summit of the neck, which has a dusky band on each 

 side passing on to the dusky tentacles. The sides of foot 

 and the tail, which is short, are very pale. 



It is most common on and in the neighbourhood of 

 calcareous soils. It occurs abundantly also in some trap 

 districts, and Mr. Macgillivray notices the only locality 

 for it near Aberdeen as being an old granite wall. It is 

 local, but widely diffused, occurring very abundantly in 

 the south. It is, however, an inhabitant of all our dis- 

 tricts. 



H. ERICETORUM, MUlIei'. 



Depressed, semitransparent, not regularly striated, banded 

 with brownish yellow ; mouth small ; outer lip acute, not edged 

 with colouring matter ; umbilical region capacious. 



Plate CXVII. fig. 4. 



Petiver, Gazophylac. pi. 93, f. 18. 

 Helix Hula, Linn. Syst. Nat. ed. 12, p. 1245 (from type). 



., ericetorum, Muller, Hist. Verm. pt. 2, p. 33. — Pulteney, Hutchins, 

 Hist. Dorset, p. 47.— Mont. Test. Brit. p. 347, pi. 24, f. 2. 

 — Donov. Brit. Shells, vol. v. pi. 151, f. 2. — Maton and 

 Rack. Trans. Linn. Soc. vol. viii. p. 194. — Dorset Catalog. 

 p. 53, pi. 20, f. 8.— Turt. Conch. Diction, p. 49.— Flem- 

 ing, Brit. Anim. p. 260. — Jeffreys, Trans. Linn. Soc. 

 vol. xvi. p. 338. — Turt. Manual L. and F. W. Shells, 

 p. 54, f. 37.— Gray, Manual L. and F. W. Shells, p. 1 63, 

 pi. 4, f. 37.— Thomtsun, Ann. Nat. Hist. vol. vi. p. 30.— 



