54 HELICIDz. 
11. H. ExcavATAa (hollowed out) Bean. Pl. II., f. 12. 
Not very glossy, semi-transparent, light brown, coarsely striated 
transversely ; whorls 53, nearly cylindrical; sfzve raised; suture 
very deep ; south nearly circular ; zdbzlicus very broad and deep. 
A. 24 mm. B. 5% mm. 
This is a well-marked species. Its broad and deep 
umbilicus, convex spire, cylindrical whorls, and coarse 
appearance combine to render it easy of identification. 
Moreover it possesses a ‘ dart.’ 
Young shells are slightly carinated. 
It is found in various parts of the four kingdoms, but 
it is a local species. It does not seem to frequent 
calcareous soils. 
It should be looked for under stones, at the roots of 
grass, among dead leaves, etc., principally in woods. 
Var. witrina (fer.). Greenish white. 
Family.—HELIciIpz 
Genus.—HELIx Linné, 
ody capable of being wholly contained within the shell ; Zezztacles 45 
shell conical ; sfzve rarely much depressed. 
Sub-genus.—PATULA feld. 
1. H. ROTUNDATA (rounded) Miller. PI. III., f. 15. 
Circular, depressed, rather thin, semi-opaque, horn colour, marked 
at regular intervals with rufous brown; strongly ribbed in line of 
growth ; whorls 6-7 ; strongly carinated ; zmzbilicus large and open. 
A. 24mm. B. 64 mm. 
