LIMAX. 
77 
cinereus lays about 50 or 60^ and X. agrestis is much 
more prolific, as it continues laying from April to 
the end of November, depositing 30 to 70 eggs 
each time, two individuals having laid 348 eggs in 
that period. The young grow very rapidly. They 
commenced laying eggs on the 66th day of their 
age, when they did not reach their full size until the 
92nd day. 
Swammerdam (^Bib, Nat i. 158. t. 8.) gives some 
details of the anatomy of one of the species; but 
recently Mr. Nunneley, in the Leeds Transactions^ 
has given an excellent paper on the comparative 
anatomy of three of the species, and has shown that 
there exists a considerable difference in internal or- 
ganisation between them and the Avion ater. 
I have great pleasure in referring the reader to 
this paper for the details, and cannot help expressing 
a hope that other persons residing in the country 
will be induced to follow Mr. Nunneley’s excellent 
example, and give to the world similar papers on the 
animals in their neighbourhood. 
a. Back rounded; tail keeled; the dorsal shield 
marked with two orders of concentric striae^ simple^ 
rather produced behind ; shell flat (Limax.) 
16. 1. Limax maximus. Spotted Slug. — Animal 
ash, variously spotted, with a long white acute 
keel ; the tentacles vinous coloured, and the 
hinder part of the mantle produced, buckler- 
shaped (fig. 29.). Shell thin, flat, oblong, a 
little concave, with a membranaceous edge, 
(t. 3. f. 14.) 
