30 



CiRRi's rotmidatus. 



TAB. CCCCXXIX.— Jigs. 1 and 2. 



Spec. Char. Conical, nearly smooth ; whorls 

 convex; umbilicus large ; aperture round. 



Very 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. CCCCXXlX.—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 Delphinula. 



