LIMAX. 21 



entirely of a dark chocolate brown colour, approaching 

 black ; head, shield, and body alike. The shield is oblong, 

 rounded behind, concentrically wrinkled. The back is 

 rounded, except near the tail, where it is carinated. Its 

 mucus is abundant, and quite transparent. M. Bouchard 

 Chantereaux states that its eggs, of which it lays no 

 more than from twelve to eighteen, during a period of 

 from six to eight days, are ovato-rotund, colourless, and 

 transparent, The fry are reddish, and do not attain 

 their maturity, until about seventy days after birth, when 

 they are of their characteristic colour. This slug is 

 active and fearless. It lives in moist places under stones 

 and among herbs. It will probably be found in many 

 more British localities. Some small slugs gathered by 

 Mr.W. Thompson at Dunvegan Castle, in Skye, appear to 

 belong to this species. 



L. tenellus, M tiller. 



Back rounded, compressed near the tail ; shield wrinkled ; 

 colour yellow. Mucus yellow. 



Plate F. F. F. fig. 3. 



Limax tenellus, Muller, Verm. vol. ii. p. 11. — Draparnaud, Hist. p. 127 ? — 

 Nillson, Moll. Suec. p. 10. — Alder, Cat. Moll. Northumb. 

 p. 31. 



This is the rarest of all our slugs. Only one speci- 

 men has yet been found in Britain, met with by Mr. 

 Blacklock in a wood at Allansford, near Shortly Bridge, 

 in Northumberland, and by him communicated to Mr. 

 Alder, who has kindly permitted us to engrave his draw- 

 ing of it, — a favour the more to be valued, since there 

 is no published figure of the species, either in British or 



