70 HELICID &. 
Var. IIE. submaritima. Smaller, darker, spire 
more raised. 
Var. IV. ecarinata. Yellowish white, depressed, 
keeled. 
Var. V. leucozona. Darkly banded, with a clear 
white band round the centre of the shell. 
17. H. caperata (wrinkled). 
Sub-eonical, compressed, solid, opaque, dull, dirty white, 
streaked and banded by variable lines which are sometimes 
merely a row of spots; obtusely carinated; whorls six; 
mouth nearly round, furnished with a white internal rib; 
umbilicus open and shallow. 
Found under stones and on the stalks of grass on 
sandy soils, especially near the sea coast, where it is 
as abundant as the last species, and frequently found 
with it. 
It is a particularly hardy animal, and will often be 
found feeding in winter when other snails are torpid. 
It has as great a power of endurmg heat as cold, and 
I have observed it not only in many parts of southern 
Europe, but even on the desert in the neighbourhood 
of Bagdad. 
It is, perhaps, apt to be confounded with the young 
of H. virgata, which is also carinated; but a very little 
experience will enable the collector to determine its 
