Our British Snails 33 



paler in the middle than at the sides. Less 

 nocturnal and less fond of houses ; chiefly found 

 in forests on hills. Local, and not common. 



Limax flaviis. — ^ Yellow, with a faint dark net- 

 work of markings. Tentacles blue. Sole cream. 

 Length 4 inches. Only found in cellars and near 

 houses. 



Limax marginatus. — Semi-transparent. Grey, 

 with two dark bands on each side. Foot-sole 

 with a dark line down the middle. Shell solid, 

 often a cube. Length 3 inches. Fond of tree 

 climbing. 



Limax tenellus. — Yellow. Tentacles black. 

 Mucus yellow. Found in woods. Lives on fungi. 

 Rare. 



Agriolimax agrestis. — The common field slug. 

 Swarms everywhere. Its milk-white slime is 

 characteristic. Very variable in colour and 

 markings. 



Agriolimax Icevis. — Slender. All chocolate 

 brown. Length f inch. Shell may be seen 

 through the mantle. Active. Our smallest slug. 

 Usually found near ditches. 



It may be useful here to give the chief differences 

 between the genera Arion, Amalia, Limax, and 

 Agriolimax. The shield in the first two is 

 granulated, in the other concentrically striated. 

 The breathing orifice in Arion is in front of the 

 centre of the mantle margin ; in the others 



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