104 
HELICID^. 
aspera. Held, Isis^ 1837, 910.^ — Pomatia adspersa. Beck, 
Ind. 44. 
Inliab. gardens^ old walls, &c. Common. 
Animal warty, yellowish-grey, with a paler dorsal 
streak. (^Rossm, Icon. t. 4. f. 75.) The jaw broad, 
costated in front, and toothed on the edge. 
Shell an inch and a half in diameter, covered 
with a creased or coarsely wrinkled skin, somewhat 
globular, with the mouth a little longer than wide, 
the edge of which is slightly reflected ; of a dull 
olive colour, with generally four interrupted brown 
bands, one and rarely two of them penetrating the 
mouth. It varies much in colours and markings, 
but is readily known by its wrinkled coat. 
1. It varies in colour. Sometimes they are pale 
yellowish, without bands, but generally banded, 
sometimes the bands are all separate, but generally 
the second and third bands are united into one ; 
sometimes all the bands are united together, which 
makes the shell appear darker, and marked with 
transverse pale lines. 
2. It varies greatly in size according to the quan- 
tity of food, and the temperature of the place in ^ 
which it lives. 
Monstrosities sometimes occur :* — 1. Reversed, or 
with the whorls turned in a contrary direction. 2. 
With the spire elongated, and conical when the 
whorls are rounded. 3. With the whorls produced, 
and separated from one another* : the latter has been 
called — Cornucopia Born^ Mus. 262. Serpula Cor- 
* A figure of this monstrosity ornaments the covers of this 
work. 
