SNAILS. 91 
by the desire of Mr. Sabine to the Zoological 
Society. About the same time this year (1829) 
it produced a second egg, and three weeks after- 
wards a third; the latter was unfortunately broken 
by the animal itself, but the former is still in pre- 
servation. It fed upon lettuces, and the tender 
leaves of cabbages; the former seemed to be its 
favourite food. Sometimes it would devour two 
large lettuces, and then remain for days afterwards 
Without touching food, or moving from its place, ex- 
cept when cold water was sprinkled upon it. During 
the day, it was usually in a dormant state in the 
shade; but towards the evening, when the house 
was moist and warm, it would spread itself out, 
and move from one part to another. It seemed to 
like moisture, and I have no doubt that it might 
have been preserved for years, if it had not been 
accidentally killed. On Saturday last, it was at the 
end of the house where the fire comes in, and 
ventured too far upon the hot bricks after they had 
been watered ; in the morning, it was found fixed 
to them quite dead.” * 
GENUS HELIX. 
The animal in this well-known genus has a 
lengthened, depressed foot, and a large produced 
central spiral body, covered with an ample shell. 
The form of the shell is generally more or less 
globose, but sometimes depressed or flattened ; the 
mouth is large and rounded, but the swelling of 
the last whorl intruding into it renders the interior 
of the aperture crescent-shaped; the mouth is 
strengthened by an internal thickened rib, and its 
* Zool. Journ. v. 102. 
