The S/.ell-Collector’s Handbook. 12) 
m. sinistrorsum (Jeff.): Spire reversed. (B.C. vol. 1, 
p. 217.) 
HELIX ROTUNDATA, MULLER. 
SuHExL depressed, circular, thin, yellowish or reddish-grey, 
marked with brown and _ yellowish-grey spots, which 
radiaté from the centre; whorls six to seven; spire 
slightly produced, with a glossy apex; suture deepish ; 
periphery bluntly carinated; aperture semi-lunar, thin, 
not reflected, with a white internal rib in old specimens ; 
umbilicus large, deep, exposing all the whorls. Diam. 
maj. 8; min. 73; alt. 3 mill. Animal slaty-grey, spotted 
with black. 
Habitat.—In decaying wood, among fallen leaves, under 
stones. Very common. 
v. rufula (Moq.): Shell tawny, spotless. 
v. Turtonii (Flem.): Shell almost flat above. (= Hele 
rotundata. Turt., Dict., 1819, p. 53.—H. rotundata, var B., 
Turt. Shells, Brit., 1831, p. 59.) 
v, alba (Mog.): Shell entirely whitish or nearly so, 
spotless, transparent. 
v. pyramidalis (Jeff.): Shell sub-conical; spire more 
raised. (B.C. vol.i., p. 219). 
v. minor (Jeff.): Shell smaller. (B.C. vol. i., p. 219). 
HELIX RUPESTRIS, DRAPARNAUD. 
Suett depressed below, sub-conical, slightly glossy, with 
strong, oblique, transverse strize, blackish-brown ; whorls 
five; spire somewhat produced, apex smooth; suture 
deep; aperture nearly circular; umbilicus very large, 
deep. Diam. maj. 31; min. 3; alt. 23 mill. Animal dark 
slaty-grey or dusky-red. 
