The Shell-Collector’s Handbook. 129 
VERTIGO ANTIVERTIGO, DRAPARNAUD. 
SHELL dextral, oval, ventricose, shining, chestnut-brown 
coloured ; whorls four and a half, the body whorl com- 
prising about one-half of the shell; spire short, apex 
blunt ; suture rather deep; aperture oblique, subcordate, 
provided with from six to eight teeth; outer lip reflected, 
strengthened by arib; umbilicus distinct, narrow. Length 
23; diam. almost 13 mill.; ap. 3 mill. long. Body greyish- 
black. 
Habitat.—In marshy places, under stones on the banks 
of streams and rivers. 
v. sexdentata (Mont.): Aperture with six denticles. 
v. octodentata (Hartm. Stud.): Peristome with eight 
denticles. 
VERTIGO LILLJEBORGI, WESTERLUND. 
SHELL oval, thin, light yellowish horn-colour ; whorls four 
- anda half, globose, the body-whorl being larger than the 
rest of the shell; spire short, apex very obtuse; suture 
exceedingly deep ; aperture semi-oval,with from four to five 
denticles—two on the outer lip, one on the collumellar lip, 
and one on the middle of the columella; outer lip thin, 
reflected, with a white external rib; inner lip indistinct ; 
umbilicus open. Length 2-24; diam. 1-14 mill. Animal 
dark-grey above, paler below. 
Rare. 
v. bidentata (Jeff.): Labial or palatal teeth wanting. 
(B. C. vol. 1., p. 256.) 
VERTIGO MOULINSIANA, DUP. NON JEFF. 
Suet differing from that of V. Lilljeborgi, in being more . 
swollen and barrel-shaped, and in having the labial rib 
much stouter: 
Rare. 
