102 PUPIDZ. 
Found in several parts of Great Britain and Ireland, 
much more commonly than any other Vertigo except, 
perhaps, Avgea 
It has the peculiarity of taking kindly to the fronds 
of the bracken. 
In the North of Ireland var. columella seemed to me 
the prevalent form. 
Var. columélla (Von Mart). Rather longer—the last 
whorl broader than the rest. 
, 
Sub-genus.—ISTHMIA Gray. 
9. V. MINUTISSIMA (very minute) Hartmann. Pi. IV., f. 22. 
Cylindrical, glossy, different shades of horn-colour; closely striated 
y » 8108s) ) 
in line of growth; whor/s 54; suture deep; mouth similar to that of 
edentula but somewhat quadrangular; zzb2/7cus small. A. 12mm, 
B. mm. 
This beautiful little shell has been recorded for the 
following localities, Portland, Isle of Wight, Cleethorpes, 
S. W. Yorks., Durham, in England; Edinburgh in Scot- 
land, and Kerry in Ireland. It has not been yet met 
with in Wales. 
It is gregarious, and its colonies though very populous 
are restricted in area. 
It is much smaller, and narrower in proportion to its 
Jength than V. edentuda and is more strongly striated. 
