44 Our British Snails 



Local, but abundant where found. Its umbilicus 

 is very small. It falls from its food plants at the 

 least shake. 



H. {Hygromia) revelata. — Scantily haired. 

 Globular thin shell. Pale green. Mainly found 

 in Cornwall and South Devon. In cold or dry 

 weather it buries itself rather deepl}^ 



H. [Hygromia) fusca. — Very thin, glossy, brown 

 shell. Local. Hardy, and even active in frost. 

 Chiefly found on nettles, which many shells 

 like as food, though avoiding the commonly 

 associated horehound. 



H. {Euparypha) pisana. — First noticed at Pisa. 

 Somewhat like Helicella virgata, but larger, 

 sub-globular, and solid shell, yellowish-white 

 with dark lines or bands. Aperture or mouth 

 yellowish or rosy. Most common in Portugal 

 and Morocco, and all round the Mediterranean, 

 dry places, especially near the sea. In England 

 chiefly confined to Tenby and other parts of 

 Pembrokeshire ; also in the Channel Islands. 

 Varies much in tint and markings. Swarms 

 where found ; it loves sun and heat. Seems 

 to lend itself better to colonization than mcst 

 species. 



H, {Helicella) itala. — So named by Linnaeus, 

 who probably received it first from Italy. Shell 

 almost circular, flat. Umbilicus very large and 

 open. Common on heaths and downs, especially 

 near the sea. 



