80 
HELICID^. 
Lister. Llmax succino colore. List Conch, t. 101. f. 6. — 
Limacella unguiculus. Brard^ 115. t. 4. f. 3, 4. 12. 14. (Shell.) 
Limacellus variegatus. Turton., Man. ed. 1. t. 3. f. 15. 
(Shell.) as L. unguiculus. 
Inhab. cellars and damp places in and near London, 
Plymouth, and Oxford. 
In spirits, it is dark olive, mantle and back yellow- 
spotted, sides rather paler ; the number and size of 
the yellow spots vary in the different specimens ; the 
young have sometimes a yellowish dorsal streak ; the 
end of the tail only is keeled, by which it is known 
from Limax maximus ; and the central band of the 
foot is generally rather narrower than the side ones. 
The shell is very like that of Limax maximus^ but 
it is smaller, and the front edge is generally more 
rounded. 
Lister did not mark this species as English, but 
this was probably an oversight of the engraver. 
When touched, it becomes covered with a white 
mucus. It has the power of forming a thread, by 
which it suspends itself from trees, &c. This fact 
was first noticed by Lister {Anim, Ang. iii.), and 
since by Dr. Latham and others {Linn. Trans, i. 
182. and iv. 85.). 
M. Bouillet and M. Morelet observe that some 
slugs, as L.flavuSy lose their colour if they are tor- 
mented or kept in confinement ; thus L.flavus passes 
from bright yellow to dull olive green. 
18. 3. Limax agrestis Linn. Milky Slug. — Reddish 
or grey, often spotted with brown ; body fur- 
rowed with interrupted lines, with a short 
oblique keel; the mantle large, ovate, with 
