Shell, width (mm.) Shell, length (mm.) 
Shell, proportions (per cent) 
TaBLE 31. Partula clara. Progressive varia 
primary varieties as regards range and av 
The interrupted line represents the general 
1 2 3 4 5 6 7 
> 
si s 
Se SE 
5 Bs} Se 8s 
3 & ~ 8 s £3 
iS S = S Pe tS PSUS 
5 S ‘Ss = i= & Sie 
~ 
a S s 5 S S68 = 
RM 
| 
