THE SNAILS AND SLUGS OF THE GREEN LANES. 217 



common name is derived from the numerous, con- 

 centric and rib-like striations on the whorls. Its 

 colour is a dullish yellow-white, relieved by narrow 

 brown bands. A much commoner species is the 

 Bristly snail (Helix hispida, Fig. 158) which may be 

 found among the moss and herbage in damp woods 

 or shady places. It is only about a quarter of an inch 

 in breadth, and we have known young naturalists to 

 fall into the error of supposing that this, and other 

 similar small species, were the young of the larger 



Fig. 156. 



PC 



Orchard Snail (//. arbustorum). 



kinds. The Prickly snail (H. aculeata, Fig. 159) is 

 similarly covered with hairs, but it may readily be 

 distinguished by its more elongated form. It is 

 smaller as well, and as it frequents dead leaves 

 which it much resembles in colour, it is rather 

 difficult to be distinguished, except by a practised eye. 

 The Plated or Scaly snail (H. lamellaia, Fig. 161) 

 is a northern species, only about the tenth of an 

 inch in height. The Little White snail (H. pulchella, 

 Fig. 160) is milk-white in colour, having a diameter 

 of the tenth of an inch. Its striated horny jaw 



