46 LIMACID^. 



3. L. FLATUS (yellow). 



This is a large species, attaining a length of four 

 inches; yellowish, speckled with black and white so as 

 to form a network. It is covered with coarse oval 

 tubercles. The head and tentacles are bluish ; the 

 slime yellow. The shell is characteristic, having 

 the nucleus slightly projecting over one end. It is 

 found in cellars and damp places throughout the 

 country. 



4. L. AGRESTIS (inhabiting fields). 



This is the well-known pest of London gardens, 

 where it is usually creamy white. Its common aspect 

 is white, mottled with dark grey. It has a thin oval 

 shell, with a membranaceous margin. Length one 

 and a half inches. 



5. L. LEVIS (smooth). 



This is an active little creature, less than an inch in 

 length, slender, very glossy, dark brown, mantle swell- 

 ing behind and raised into a hump by the very solid 

 shell. The shell is unguiform, very convex above and 

 flat beneath, solid, nucleus terminal, margin sharp, 

 and not membranaceous. It is found in the same 



