144 Beautiful Shells. 
getting common. It has a penchant for nettles, 
wild celery, elder Primula vulgaris, and will climb 
walls, and apple and scented poplar trees, to a great 
height, but is capable of a long fast. Mr. Lowe 
mentions one that fasted one hundred and eight 
days insummer. The green snail (H. revelata, 
Figs. 24 and 25) is very rare and pretty. It was 
added by Edward Forbes in 1839 ; he found it near 
Doyle’s monument in Guernsey. The yellowish- 
green H. nemoralis, or girdled snail (Figs. 26 and 
27), 18 abundant and beautiful, and known to every 

30-31. 
98-29. H. hortensis (the Garden Snail), Montagu. 30-31. 
H. arbustorum (the Shrub Snail), Linneeus. 
one. This snail also has been introduced into 
North America, where it is becoming common. It 
is about seven-eighths of an inch in diameter. In 
