64 HELICIDJE. 



of check pattern, surrounded with a single band of dark 

 brown ; lip white and thick ; umbilicus indistinct. 



This is a rather local species, inhabiting dry ditches. 

 Where it is found it is abundant. In some parts of 

 Derbyshire the white variety occurs in great profusion 

 with the type. 



Var. I. flavescens. Yellowish white, without any 

 circular band. 



Var. II. major. Larger, more depressed. 



Var. III. alpestris. Smaller, spire raised. 



Var. IV. fusca. Dark brown, with or without the 

 band, very thin. 



7. H. CANTIANA (Kentish). 



Compressed, thin, dull, creamy white with a slight tinge 

 of pink ; closely striated in the line of growth ; whorls six 

 to seven, rounded, not keeled ; spire short, obtuse ; mouth 

 pink inside ; umbilicus narrow, but deep. 



This shell is found in Northumberland, Yorkshire, 

 Wales, and some of the southern counties of England. 

 Where it occurs it is common. 



When young it is covered with hairs, which after- 

 wards disappear. 



8. H. CARTUSIANA (named after a Carthusian monastery). 

 Sub-conic, depressed, thick, not very glossy, yellowish 



