134 LIMACIDuE. 



This kind of slug is nocturnal, but very active. Its 

 slime is abundant and stains linen of a yellow colour. 

 It appears to be fond of bread, cooked vegetables, and 

 all sorts of kitchen refuse. 



It is probable that the L. flavus of Miiller may be a 

 variety of Arion ater, because he describes the shield as 

 not having any concentric wrinkles, although in the 

 same description he also notices a yellow slug which 

 seems to belong to the present species. This is the 

 L. variegatus of Draparnaud ; and its shell is probably 

 the Limacella concava of Brard. 



4. L. AGRES'TIS*, Linne". 



L. agrestis, Linn. Syst. Nat. ed. x. i. p. 652 ; F. &. H. iv. p. 13, pi. 

 D. D. D. f. 3. 



BODY spindle-shaped, slender, ash-grey with a reddish or 

 yellowish tinge and sometimes mottled, nearly smooth : 

 shield rather large, more tumid behind, the concentric 

 striae more remote and indistinct than in any of the other 

 species: tentacles dark grey: back obliquely, but not strongly, 

 keeled towards the tail : foot having very pale sides : slime 

 milky. L. 1-5. B. 0'4. 



SHELL obliquely oval or inclined to oblong, concave on 

 the under side, rather thin, with indistinct lines of growth, 

 and marked obliquely by exceedingly minute striae which 

 cross each other : boss very small, slightly projecting behind 

 on one side : margin membranous, rather broad, and ob- 

 liquely striate. L. 0'2. B. 0-1. 



HABITAT : Fields, gardens, and woods throughout the 

 British Isles. The shell is also one of our upper tertiary 

 fossils. Its foreign distribution extends from Siberia to 

 Corsica and Algeria, and (according to Lowe) Madeira. 



This slug is a great pest in the kitchen garden, and 

 does not even spare succulent leaves and roots of flower- 

 plants. Mr. Whiteaves says that it also feeds on earth- 

 * Inhabiting fields. 



