UMAX. 81 



A. Mantle granulated 

 i. LIMAX GAGA'TES,* DRAPARNAUD. PL. VI. 



Body rather narrow in front, broader in the middle, and taper- 

 ing to a pointed tail ; colour variable, black, slate-colour, dark 

 red, dark brown, or yellowish with dusky markings, paler 

 underneath, head and neck slate-colour, tubercles oblong, close- 

 set ; mantle oblong when the animal is extended, distinctly 

 bilobed, the upper lobe nearly oval and bordered by a slender 

 black line, which, when the animal is at rest, is somewhat angu- 

 lated on the right side immediately above the respiratory orifice ; 

 tentacles thick, short, upper pair dusky slate-colour, tips very 

 slightly swollen, lower pair sometimes much paler in colour, tips 

 dusky ; back with a prominent keel which extends from the 

 mantle to the tail ; slime very thick and glutinous, white or 

 faintly tinged with yellow, iridescent when dry. Length about 

 2| inches. 



Shell oval, thick from the nucleus to the centre, nacreous, 

 iridescent, wrinkled and pitted ; margin thin ; nucleus blunt, 

 subterminal. 



Inhabits many parts of Great Britain, in hedgerows 

 and gardens, at the foot of walls, as well as at the 

 roots of grass and other plants, and among decaying 

 vegetable matter, but it is rather local. 



2. L. MARGINA'TUS,t MuLLER. PL. VI. 



Body slightly swollen in front, tapering behind to a pointed tail, 

 yellowish or rufous-brown, spotted with black or dark brown, 

 irregularly wrinkled, head and tentacles dusky ; mantle oblong, 

 irregularly granulated, with a dark line on either side ; tentacles 

 thick, tips not very tumid ; keel prominent, extending from the 

 mantle to the tail, usually of an amber colour, always lighter than 

 the rest of the body ; foot with pale margins ; slime colourless, 

 thick, and glutinous. Length about 2| inches ; lingual ribbon 

 with 80 rows of 101 teeth = 8080. 



* Jet f Margined. 



