152 The Shell-Collector’s Handbook. 
VERTIGO ANGUSTIOR, JEFFREYS. 
SHELL sinistral, smaller and narrower than Vertigo 
pusilla, fusiform, glossy, semitransparent, pale fulvous ; 
whorls four and a half, slightly ventricose; spire some- 
what produced, blunt; suture deepish; aperture triangu- 
larly subcordate, with from four to five denticles,—one on 
the columella, two on the inside of the outer lip, and two 
on the base of the penultimate whorl; outer lip provided 
with a strong, yellowish-white rib, thick; umbilicus 
small, contracted by a basal ridge. Length scarcely 2; 
diam. hardly 1 mill.; ap. ? mill. long. Animal greyish, 
with a yellowish-grey mantle. 
Habitat.—Roots of grass in marshy places. 
VERTIGO EDENTULA, DRAPARNAUD. 
SHELL dextral, ovate, cylindrical, thin, glossy, pale brown 
or horn-coloured, transversely fmarked with faint striz ; 
whorls five to six and a half, gradually increasing; spire 
conical, blunt ; suture moderately deep ; aperture subsemi- 
oval, toothless; umbilicus narrow, deepish. Length 33 ; 
diam. 12 mill.; ap. 13 mill. long. Animal pale grey, with 
darker tentacles. 
Habitat—Under stones, among moss and dead leaves, 
in moist places and woods, 
v. columella (von Martens): Shell somewhat longer, 
and having the last whorl a little broader than the next. 
(= Pupa columella (von Martens), Benz, Ueber Wriirten- 
burg, Faun., p. 49.) 
