LIMAX. 77 



cinereus lays about 50 or 60, and L. 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 Arion 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. JSTunneley'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.) 



