52 GASTEROPODA. LIMACID. 
extending from the base of the tentacula to the thoracic disc. 
Tentacula elongated. Back sculptured, with oblong corroded 
tubercles, which are acuminated at each extremity. Carina ex- 
tending anteriorly beyond the middle of the back, serrated, den- 
tated, or undulated above. Foot white, sometimes lutescent. 
It varies much in colour. The thoracic dise is of the same 
colour with the rest of the body, or is beautifully mottled. 
The back and sides are often black or fuscous ; at other times 
chestnut-brown or cinereous, and beautifully ornamented with 
longitudinal lines entire, or composed of spots of a darker co- 
lour. Length seven or eight inches. 
This species seems to be very rare in Britain, as I have only 
obtained specimens, which were found in a cellar, near Cobham, 
in Surrey, and at Starston, Harleston, in Norfolk, by the Rey. 
W. Whitear. 
Shell thin, elongate, concave, generally with a membrana- 
ceous edge. 
2. LIMAX MACULATUS. 
L. luteus, supra nigro pulcherrimé maculatus. 
Habitat prope Edinburgh sub lapidibus. 
Thorax leviusculus maculis distinctis, nigris ornatus. Dorsi 
medium maculis distinetis, sublateraliter maculis confluenti- 
bus vittam irregularem efformantibus ; lateribus ipsis maculis 
minoribus undique confiuentibus. 
Colour luteous, its upper part beautifully spotted with black. 
Thoracic dise rather smooth, the spots distinct. Back with 
distinct spots. Towards the sides the spots are confluent, and 
form an irregular longitudinal band. The sides themselves are 
varied with smaller spots, which on every side join with each 
other. Sculpture irregular. 
This description is taken, in default of a living specimen, 
from one in spirits. Its size is the same, in the contracted 
state, with that of LZ. variegatus, and its cara appears to be 
of the same proportion. 
Common on the hills round Edinburgh under stones. 
3. LIMAX VARIEGATUS. 
L. lutescens aut nigricante-griseus, luteo yel croceo variegatus, 
