84 HELICID-. 
Found in considerable quantities on heaths, downs 
and sand-hills, especially near the sea. It occurs in 
Dovedale among the limestone rocks and over the barren 
hills. It has a very extensive range throughout the 
British Isles as far north as Caithness, though it is not 
recorded for the Channel Isles. In Scotland it is found 
chiefly, but not exclusively, on the western side. 
It appears to be as fond of thistles as the donkey, but 
without that animal’s reasonable excuse. 
The largest specimen that I have seen is one which I 
found in a limestone quarry at Blisworth, Northants ; it 
measures 22mm. in diameter. 
The var. Ayalozondta is a beautiful object and very 
local ; var. /eztigindsa occurs near Dublin, at the Isle of 
Man, and at Tenby. 
aw Size: Var. 1. minor (Moqg.). Breadth 12mm. 
b. shape. Van Il. wnstadilis (Zier/.). ° Spwemonre 
raised, smaller, darker. 
Var. III. Jleucozina (Mog.). Markings 
coalesced except round the periphery 
which remains white. 
c. colour Var. 1V. hyalozondta (Ckil.). White with 
and 
translucent markings. 
markings. LAN 
, S Var. V.  lentiginosa (Moq.). Markings 
radiating from the centre. 
\ Var. VI. dlba (Charp.). Entirely white. 
d. monstrosity. M. sévdstrorsum (Jeff.). Reversed. 
