94 THE ZOOLOGIST. 
favourite situations for this snail; but as it is rather inactive by 
day, the best time to look for it is at twilight, or after a shower of 
rain. The inappropriate name lapicida was bestowed upon ii by 
Linnzus, under the mistaken impression that it bored or excavated 
calcareous rock, as the Teredo does wood. This is one of the very 
few instances in which a species has been inaptly named by that 
most remarkable and observant of naturalists. It is a local species 
in Sussex. Specimens have been met with on old walls and under 
leaves at Cowfold, Henfield and Lindfield—B. In the neigh- 
bourhood of Ratham, near Chichester, not uncommon on the 
trunks of beech trees.—J. At Uppark it is ofien found in 
wet weather ascending the smooth trunks of the young beech 
trees.—W. At Kingly Vale also numerous specimens were 
found on ivy-covered trees, and clinging to the. under side of 
the ivy leaves—H. It is not included in the lists from Brighton 
and Eastbourne. 
Helix obvoluta. 'The Cheese Snail.—So called from.its shape, 
which resembles a little flat cheese. It is of a reddish brown 
colour, thickly studded with short hairs. The mouth, which is rose- 
coloured, and thus quite different to that of every other British 
species of Helix, is closed during the period of bybernation with a 
thick calcareous epiphragm. The species is a very local one, and, 
except in a few favoured localities, must be regarded as rare in 
Sussex. As an inhabitant of Ditcham Wood, near Buriton, it was 
discovered by Dr. Lindsay, at one time a resident in the neigh- 
bourhood, It has since been found at Ashford Wood and Stonor 
Hill (Rev. W. H. Hawker) ; Crabbe Wood, near Winchester (W. A. 
Forbes); Uppark (Weaver); Kingly Vale, near Chichester (W. 
Jeffery); Duncton (Godlee); Elsted (Miss Buckland); and in a 
“hanger” on the north side of the South Downs at Springhead, near 
Storrington (Borrer). It is generally found amongst moss at the 
roots of hazel, and, after rain, on beech trees at some height from 
the ground. It is not included in the lists of Mollusca of Kast 
Sussex. 
