84 LAND AND FRESH-WATER SHELLS. 



one-half of the shell ; spire blunt, much raised ; mouth crescent 

 shaped, with a white internal rib ; umbilicus deep, very minute. 

 Height ^T^hs inch. In woods and damp places. Somewhat 

 local. H. sericea?^ 



(n) Shell subglobose, depressed, thin, greenish-horn coloured, 

 transparent, scantily covered with short hairs ; whorls four and 

 a-half, convex, the body-whorl occupying two-thirds of the shell ; 

 spire blunt, not much raised; suture deep; mouth somewhat 



Fig. 33.— (rt) Helix scrlcca and {U) Helix hisfiida. 



circular, not provided with a rib ; umbilicus minute. Height 

 ith inch. Among nettles. Very local. H. rclevata. 



(o) Shell subconical, depressed, faintly keeled, horn-coloured, 

 smooth, strongly corrugated in line of growth, thin, transparent; 

 whorls five and a-half, convex ; spire blunt, somewhat produced ; 

 suture shallow ; mouth crescent-shaped ; umbilicus very small. 

 Height ith inch. Among decayed leaves in woods, especially 

 those of the sycamore and alder. More or less local. 



If. fiisca. 



{p) Shell subglobular, yellowish-white, marked with chocolate- 

 brown bands and dots, giving the shell a mottled look, solid ; 

 whorls five to five and a-half, the body-whorl occupying two- 

 thirds of the shell ; spire blunt ; mouth rose-coloured, crescent- 

 shaped; umbilicus small. Height ||ths inch. Sandhills near 

 the sea. Local. H. Pisana?'^ 



{q) Shell conical, somewhat globular, cream-coloured, with a 

 single dark brown band on the periphery of the body-whorl, and 



"'^ V, cornea^ horn-coloured, thin, labial rib perceptible on the outside, 

 " V. alba, white or pale yellow, 



