68 HELIX. CUROCOLLA. ANOSTOMA. 



Helicina Helix. 



Pupa Helix. 



Clausilia Helix. 



Bulimus Helix. 



Achatina. 



Succinea Helix. 



A uric ula Voluta. 



Cyclostoma. 



" What a number of new genera !' said Lucy. 

 " I see the forms of the shells vary very much ; 

 and how beautiful these little transparent shells 



are 



a 



They will find a place shortly. Here is a 

 well-known species, H. aspersa, in most of its 

 varieties ; H. pomatia, the apple-snail, now 

 naturalized in the county of Surrey ; H. erice- 

 torum^ white with brown bands, very frequent on 

 chalky soils ; H. citrina, transparent, pale yel- 

 low, sometimes with one dark band ; H. muralis., 

 from the walls of Rome ; H. hidentalis, from 

 Teneriffe ; and the little Helix hispida, which 

 you may search for in your own garden ; it is 

 small, dark brown, and rough. 



" Curocolla has the shells more flattened than 

 Helix. 



'' Anostoma depressa is a rare and curious 

 shell. 



" Helicina is a West Indian genus. You 



