36 
Cirrus rotimdatus. 
TAB. CCCCXXI X.—figs. 1 and 2. 
Spec. Char. Conical, nearly smooth ; whorls 
convex ; umbilicus large ; aperture round. 
v ery nearly related to Cirrus acutus, t. 141. but the 
upper portion of each whorl is not flattened as in that 
species, and it has a general bluntness or roundness of 
contour by which it is distinguished at first sight ; the 
surface is marked with fine lines of growth. 
Found in the Limestone of the Lead Measures near 
Settle in Yorkshire. 
Cirrus carinatus. 
TAB. CCCCXXI X.—Jigs. 3 and 4. 
Spec. Char. Discoid, smooth? whorls few, 
ventricose, obtusely carinated, convex be- 
low ; Umbilicus large ; aperture transverse, 
obovate. 
But little can be said of this fossil since we know 
only the cast of the inside ; its spire is quite de- 
pressed, and the whorls almost separated from each 
other ; the umbilicus is deep as well as wide. 
Sent from Lakehampton Hill near Cheltenham, by 
our scientific Friend Miss E. Warne. 
The genera Cirrus and Euomphalus merge into each 
other, they are distinct from Delpliinula. 
