216 HALF-HOURS IN THE GREEN LANES. 



up the whorls, the ground being a pretty yellow. 

 You cannot fail to notice this species, and its most 

 marked varieties, when taking a country stroll. 

 The single and broader brown band running up 

 the middle of the body-whorl of the wood snail 

 (Fig. 155) and the black rim round the mouth, will 

 readily enable any one to identify it. Like the 

 species last mentioned, however, it comprises a good 

 many varieties, all of which are exceedingly pretty. 

 On it you may find the species of mite to which we 



Fig. 155. 



Wood Snail (//. nemoralis). 



have already alluded as infesting certain slugs. 

 This species seems to appear in thousands all on a 

 sudden, whenever a warm shower has fallen ; but 

 you will hardly see a specimen during a continued 

 drought, as it seems to have the power of aestivation, 

 like the tropical landshells. The Orchard snail 

 (H. arbustorum, Fig. 156) resembles the wood snail 

 in its general appearance, but its distribution is far 

 more loeal. The markings, also, are not so definite, 

 but frequently look as if they were mottled. On 

 limestone soils the student will undoubtedly find 

 the Wrinkled snail (Helix caperata. Fig. 1571 The 



