COLIMACEA. 71 



Varieties are said to be found nearly white. 



This species differs from H. Mspida, in being thinner and 

 more globular in form, and in the umbilicus being smaller. It 

 will be known from the H. granulata, by being wrinkled, in- 

 stead of having granulations. 



Inhabits woody situations. 



Mr. Alder, who first introduced this shell on the faith of 

 Baron de Ferussac, gives no locality for it. Mr. Thompson 

 gives it as an Irish specimen, from Lagan, near Belfast, but 

 considers it as merely a variety of H. hisjnda. 



21. Helix HispiDA, pi. VII, f. 30, 31. 



Helix hisjjida, Miiller, Verm., II, p. 73, No. 268 ; Draper- 

 naud, p. 103, pi. 7, f. 20, 21, 22; Gmelin, Linn. Syst., I, p. 

 3625, No. 42 ; Pfeiffer, I, p. 36, pi. 2, f. 20 ; Brard, p. 27, pi. 

 2, f. 1 ; Turton, Man., p. 57, f. 41 ; Jeffreys, Linn. Tr., XIII, 

 p. 338; Lamarck, An. San. Vert., VI, pt. 2nd, p. 92, No. 100; 

 Rossmassler, VII, p. 2, pi. 31, f. 226, 227; Alder, Mag. Zool. 

 and Bot., II, p. 107 ; Thompson, Ann. and Mag. Nat. Hist., 

 VI, p. 27 ; Brown, Illust. Conch., p. 48, pi. 17, f. 40 and 46; 

 lb.. First Ed., pi. 40, f. 40 and 46. 



Shell subdepressed, subdiaphanous, of a brownish horn- 

 colour, frequently of a dark reddish-brown; body large, convex 

 on the sides, with a pale, central, transverse, subcarinated zone ; 

 spire small, subdepressed, consisting of three rather depressed 

 and not deeply defined volutions, with a blunt apex ; base not 

 much produced, and with a deep, moderately-sized umbilicus ; 

 aperture moderate, subluniform, somewhat rounded ; outer lip 

 even, with an internal rib ; pillar lip not reflected ; whole exte- 

 rior covered with fine, close-set, bristly hairs, which are very 

 caducous, when these are removed the surface is slightly stri- 

 ated. Diameter a quarter of an inch ; its length being hardly 

 so much. 



This species is always hairy, and very flat above, even in the 

 youngest condition. 



Not uncommon in many parts of Great Britain, and is widely 

 spread over Ireland. It is found under stones, decayed trees, 

 leaves, &c., both in dry and moist situations. Mr. Thompson 

 mentions a well marked variety, which he found in the North 

 of Ireland, where it is the most common form. It is larger. 



