HELIX. 71 
identity. It is more depressed and has a larger um- 
bilicus than the adult of the last species, and is smaller 
than the usual type. 
Var. L major. Larger. 
Var. Il. ornata. Smaller, with a broad, dark band. 
Var. III. subsealaris. Spire more raised, whorls 
more tumid. 
Var. 1V. Gigazit. Smaller, spire more depressed. 
18. H. ERicetéRuM (inhabiting heaths). 
Almost circular, very flat, thin, nearly opaque, glossy, 
cream-colour, with one broad dark band above and several 
narrow ones beneath; spire slightly raised; whorls six, 
cylindrical; mouth nearly circular, often of a reddish 
colour inside ; wmbilicus very large and open. 
Found in considerable quantities on heaths, downs, 
and sand-hills—particularly by the sea. It appears to 
be as fond of thistles as the donkey, but without that 
animal’s reasonable excuse! 
Var. L alba. Milk white. 
Var. IL minor. Mueh smaller, sometimes white, 
sometimes banded. 
Var. IIf. imstadilis. Smaller, spire more raised, 
darker, streaked or spotted. 
19. H. rorunpAta (rounded). 
Cireular, compressed, thin, and semi-transparent, pale 
