LAND SNAILS. 109 
over the base, but not so well defined on this 
aspect; whorls five to five and a half, well 
rounded, especially on the inferior surface ; um- 
bilicus very large and capacious, disclosing all 
the whorls; aperture rather small, lunate, as 
broad as high; diameter three-fourths of an 
inch. | 
This species inhabits woods, about the decay- 
ing stumps of trees, and among dead leaves and 
moss. It is peculiar to Great Britain, and is re- 
corded from Yorkshire, Northumberland (Aln- 
wick), Durham, and other counties in the north 
of England; South of Scotland; Tunbridge ; 
Wootton, near Gloucester; Sandown, Isle of 
Wight; and Clifden, co. Galway. 
HELICELLA RADIATULA—(the Rayed Snail) (Pl. 
VIL., fig. 61).—This is a minute and well-marked 
species. 
Its favourite habitat is among grass and moss 
in damp pastures, under stones, and among 
moss, grass, and decaying trunks of trees in 
woods. 
The shell is flattened, spire scarcely raised ; 
colour deep horn or amber, shining, transpa- 
rent ; under surface without any white opacity ; 
upper surface regularly and distinctly striated, 
the striz continued from whorl to whorl, and 
not interrupted by the suture; whorls three and 
a half to four; body whorl much larger than 
