BE Sh Coliccins. Handbook... 103 
whorls four, convex, the body-whorl occupying nearly 
one-half of the shell; spire not much raised, obtuse ; 
sutures deep, narrow; aperture roundish, oblique; um- 
bilicus narrow, deep, disclosing all the internal spire. 
Diam. 5, to } inch. ‘Animal yellowish-grey, tinged with 
slate colour, and mottled with minute black specks. 
Habitat——Under stones and decayed leaves, in woods 
and fields. 
v. margaritacea (Jeff.): Shell pearl-white, nearly 
transparent. (B.C. voli., p. 165). 
ZONITES RADIATULUS, ALDER. 
SHELL flattened, shining, transparent, regularly striated, 
horn-coloured; whorls four to four and a half, convex, 
with the body-whorl large in proportion to the rest, and 
the strise extending from whorl to whorl, and not inter- 
rupted by the sutures as in Z. nitidulus; spire much de- 
pressed, obtuse; suture not very deep; aperture semi- 
lunar, oblique; umbilicus moderately deep. Diameter 7; 
to 1 inch. Animal dark-brown, marked with rounded 
tubercles, between which are placed a few white specks. 
Habitat—Among moss and wet grass, in woods and 
fields. 
v. viridescenti-alba (Jeff.): Shell greenish-white. 
(Ferussac described a greenish-white variety of this species 
in his Prodromus as Helix vitrina, which seems to be 
identical with v. viridescenti-alba of Jeffreys). 
ZONITES NITIDUS, MULLER. 
SHELL depressed, subglobular, glossy, semi-transparent, 
transversely striated, brownish horn-coloured ; whorls 
five, body-whorl occupying one-half of the shell; spire 
produced, blunt; aperture oblique, roundish, forming 
