132 LAND AND FRESH-WATER MOLLUSKS. 
the sea at Boulogne and on the west coast of 
France. 
Helix revelata —(PI. VIII., fig. 72).—The 
specific term signifies “ discovered the vulgar 
name by which it is known is the “ Green Snail” 
on account of its peculiar colour. The shell is 
subglobose, about a quarter of an inch in dia¬ 
meter, very thin, nearly transparent, green, 
wrinkled in the lines of growth; the umbilicus 
is small and narrow; in the living state the 
epidermis of the shell is provided with short 
rigid hairs, sparsely distributed. 
H, revelata is one of the rarest of British 
snails, and was added to our fauna in 1841, by 
Mr. Bellamy, who found it near Mevagissey, 
between Falmouth and Plymouth. It occurs at 
Pendennis, near Falmouth; Whitesand Cliffs, 
near the roots or under the foliage of plants of 
recumbent growth; at Stanton-on-the-Wolds, 
Notts, in woods. It is procured under stones 
on the open downs in Devon and Cornwall, but 
in Guernsey in shady places among nettles. It is 
found in the South-west of France and inPortugah 
Mr. J. G. Jeffreys writes — “In winter and 
dry weather it buries itself rather deep in the 
earth, and must be looked for by pulling up 
tufts of grass and large stones which are sunk 
in the ground, as well as by searching among 
the roots of shrubs and furze-bushes.” 
