Jel ouip Se 87 
° 
varies greatly in size, colour and shape, a good series 
ought to be secured. 
It has a very wide range through Great Britain as far 
north as Northumberland, but with the single exception 
of Ayr it is not found in Scotland. It occurs in many 
parts of Ireland, from Antrim to Kerry. 
The young are carinated. 
The variety of colour and markings cannot fail to make 
this a favourite species with the collector, The com- 
monest varietal forms are /z¢escens and albicans, which, I 
think, always occur wherever the type is found, the former, 
however, in the greater proportion ; albicans is always 
smaller than the type found associated with it. Like 
Hi. arbustorum, this species is smaller and more conical 
in the north and larger and flatter in the south of 
England ; and also, like that species, the largest indi- 
viduals to be found in the British Isles occur in the 
neighbourhood of Dover. The beautiful a/da form, 
though very local, is usually fairly plentiful where it 
occurs. It will be a guide to remember that in the 
true albino forms of virgata, caperata, and Ztala, the 
nucleus is white, as white individuals are often found 
having a dark zuclews—these are not true albinos. The 
albino form without the translucent bands is much the 
rarer. The radiata variety is a Kentish coast form, though 
it occurs in Mid-Kent at Charing. There is a colony 
near Hythe and one here and there to Rye (just within the 
