The Shell-Collector’s Handbook. 123 
HELIX LAPICIDA, LINN. 
SHELL depressed, lenticular, acutely carinated at the peri- 
phery, greyish or yellowish-horn colour, streaked irregu- 
larly with rufous-brown ; whorls five; spire very little 
produced, apex blunt, smooth; suture well defined, shal- 
low ; aperture oval, somewhat angulated above and below; 
outer lip whitish, reflected, and with the inner lip forming 
a perfect peristome; umbilicus large, deep. Diam. maj. 
17; min. 15; alt. 64 mill. Animal yellowish-brown. 
Hahitat.—Woods, hedge-rows, walls, and rocky places 
in calcareous districts. 
v. nigrescens (Taylor): Shell of an uniform, very dark 
brownish-black, except the apex which is paler, and the 
. peristome which is white. 
v. minor (Moq.): Shell dwarfed, brown. 
v. albina (Menke): Shell whitish, unicolor. 
HELIX OBVOLUTA, MULLER. 
SHELL depressed, subdiscoidal, opaque, solid, dull rufous- 
brown ; whorlssix and a half; spire depressed, sunk below 
the upper level of the body-whorl; suture rather deep ; 
aperture triangular, marked with two protuberances; 
peristome thick, pinkish-white, much reflected ; umbilicus 
large, deep. Diam. maj.18; min. 12; alt. 6 mill. Animal 
light reddish-brown above, and pale greyish-brown below. 
Habitat—Among the moss near the roots of shady trees. 
Rare. 
