27 
TERJSBRATULA Fimbria, 
TAB. CCCXXYI. 
Spec. Char. Orbicular, gibbose ; margin un- 
dulato-plicated. 
I ull grown shells of this species are more orbicular 
than young ones, which are rather quadrangular, and 
not so gibbose : the plaited margin or frill occupies 
about a fifth part of the diameter of the shell, and is 
partially separated from the remaining smooth part by a 
sudden elevation. 
Found in fine grained Limestone, at Charlton Kings, 
in Glostershire, and at Cleeve Hill, near Cheltenham ; 
from the former locality it was sent me by Mr. Richard 
Taylor, and from the latter by Miss E. Warne. 
