40 



Shell about half an inch in diameter, and not so much 

 high, with the volutions a little flattened at top, 

 slightly striate : colour whitish or yellowish, rarely 

 without coloured bands, but mostly with seven or 

 eight brown circular lines on the lower volution, 

 often broken into dots ; the tip black : these bands 

 are very variable : aperture longer than wide, with 

 the margin thin and reflected at the pillar, where it 

 half closes the narrow but deep umbilicus : the 

 region of the mouth is generally of a more or less 

 intense rose-colour. 



1. with the mouth rosy. 



2. with the mouth whitish. 



3. dull greyish- white without marks. 



On dry sandy plains. 



31. HELIX virgata. Shell somewhat globular, white 

 with from one to six brown bands : the mouth dull 

 rufous. 



b. with the spire conically produced into six or 

 seven volutions. 



c. with the spire much elongated, and the vo- 

 lutions detached. 



Helix disjuncta. Turton t Diet. p. 61. Jig. 63. 



