HELIX. SNAIL-SHELL . (>1 
Variety, dull yellowish-brown, of a more oval form, and 
\rithout bands. 
Before the lip is fully formed, the shell is very light and 
brittle, with the margin extremely thin and membrana¬ 
ceous, not protruding in front, but perfectly crescent* 
Shaped, and without any appearance of the white edge; 
and there is generally a deep perforation behind the pillar- 
lip, which gradually closes a 3 the shell arrives at matu¬ 
rity. 
A variety was found by Dr. Latham, at Dartford, with 
the spires reversed ; and another by Mr. Swainson, with 
devolutions much extended and detached from each other, 
like the worm of a corkscrew 7 . 
Common in gardens and hedges, v. v. 
42. Helix fusca. Brown Snail-shell. 
Montagu) pi. 13. f. 1. 
Shell thin, transparent, rufous hom-color, very faintly 
wrinkled, with five or six rather raised and well defined 
volutions; the first very large : aperture crescent-shaped , 
the lip thin and reflected a little at the lower margin only, 
where it forms a small depression or incipient perforation: 
diameter three eighths of an inch, and hardly a quarter of 
in inch high. 
Variety, clear white, transparent, and highly polished. 
The neighbourhood of London 5 woods in Dublin ; and 
the variety from Scotland, v. v . 
43. Helix Vafiegata. Linn. Trans, ill. p. 67- 
Shell semitransparent, smooth, with red lines : spires 
four, the first more tumid: margin of the aperture very 
much spread. 
t Pembrokeshire: minute. 
:' D. Shell tapering to a point. 44 to 51. 
44. Helix disjuncta. Disjointed Snail-shell, Fig. 63. 
Helix elegans. Brown, IVem. Soc. pi. 24. f. 9. 
. .Shell transparent, with seven much rounded volutions, 
lonely set together, but very deeply divided so as to ap¬ 
pear almost detached from each other, slightly striate or 
n wrinkled 
