130 The Shell-Collector’s Handbook. 
VERTIGO TUMIDA, WESTERLUND. 
SHELL ovate, ventricose, dark reddish-yellow or reddish- 
brown; spire conical above, short, blunt; whorls four and 
a half to five, convex; aperture wide, inequally cordate, 
with six denticles—two parietal, two columellar, and two 
palatal; between the columellar and palatal denticles are 
two tubercles; outer margin of peristome simple, thin, 
strong above, and greatly curved. Length 13; diam. 12 
mill. 
Rare. 
VERTIGO PYGMAIA, DRAPARNAUD. 
SHELL dextral, ovate, cylindrical, rather ventricose, faintly 
striate, reddish-brown; whorls four and a half to five, 
rounded, body-whorl comprising about one-half of the 
shell; spire short, blunt; suture well-marked; aperture 
semi-oval, with four or five teeth—one on the colu- 
mella, two or three on the internal side of the outer 
lip, and one in the middle of the base of the penultimate 
whorl; umbilicus narrow, rather deep. Length 23; 
diam. 23 mill.; ap. 3 mill. long. Animal slaty-grey. 
Habitat.—Under stones, logs of wood, and at the roots 
of grass. 
v. quadridenta (Stud.): Shell with only two palatal 
plications. 
v. pallida (Jeff.): Shell thinner, lighter in colour. 
(B. C. vol. i., p. 258.) 
VERTIGO ALPESTRIS, ALDER. 
Suet. differing from that of V. pygmeea in being more 
cylindrical, lighter in colour, and in the absence of any 
rib. The tentacles and the foot are longer than in 
V. pygmea. 
