16 The Shell-Collector’s Handbook. 
v. depilata (Alder): Shell usually more depressed, 
glabrous ; whorls more round; peristome more thickened ; 
columella more angulated. | 
v,conica (Jeff.): Shell smaller, spire more raised. 
(B. C. voli, p. 199.) 
v.albida (Jeff.): Shell white or colourless, thinner. 
(B. C., voli., p. 199.) : 
HELIX SERICEA, MULLER. 
SHELL subglobular, conical, thin, pellucid, dark-brown or 
greyish-white, marked with a few faintly marked reddish- 
brown streaks ; epidermis covered with fine, long, downy 
hairs, which, when broken off, give the shell a granulated 
appearance; whorls six, very convex, the body-whorl 
comprising nearly one-half of the shell; spire much 
raised, obtuse; aperture crescent-shaped, provided with 
a small, internal, white rib; umbilicus very small, deep. 
Diam. maj. 16; min. 143; alt. 93 mill. Animal yellowish- 
grey; mantle reddish-brown, spotted with milk-white. 
Habitat.—Woods and damp places. 
v. cornea (Jeff.): Shell horn-colour, very thin, glossy 
and semi-transparent; labial rib perceptible on the out- 
side. (B.C. vol.i., p. 201.) 
v. carinata (Taylor): Shell sharply angled at the 
periphery ; aperture diam. 4 mill.; alt. 24 mill. 
v. albida : Shell white or whitish. 
HELIX RELEVATA, MICH. 
Suet depressed, subglobose, orbicular, thin, diaphanous, 
glossy, greenish horn-coloured, hispid, striated and 
corrugated; whorls four and a half, convex, ventricose, 
the body-whorl comprising two-thirds of the shell; spire 
