EDIBLE BRITISH MOLLUSKS. 



SNAILS, COCKLES, RAZOR-SHELLS, ETC. 



Fam. HELICIDJE. 

 HELIX.— SNAIL. 



Helix pomatia, Linnaeus. Apple Snail. — Shell glo- 

 bular, strong, large, covered with coarse longitudinal 

 striae, 5 volutions, convex; spire short, and the apex 

 blunt ; pale cream-colour, with rufous bands ; the colu- 

 mella arched ; and of a pale purplish-pink ; the outer lip 

 dark reddish-brown ; mouth almost round. 



Helix aspersa, Linnaeus. Garden Stiail. — Shell 

 opaque, nearly globular, 4 to 4£ volutions, the last much 

 larger, occupying nearly two- thirds of the shell ; mouth 

 nearly ovate ; spire short, with a blunt point ; the outer 

 lid white, with dark- brown bands or mottlings, subject 

 to great variety of markings ; epidermis yellowish-green, 

 and thick. 



Helix nemoralis, Linnaeus. Wood Snail. — Shell im- 

 perforate, globular, whorls 5, more or less covered with 

 minute spiral striae ; mouth pyriform ; inner margin of 



B 



