08 



CUCULLiEA minuta. 

 TAB. CCCCXLVIl—^;^. 3. 



Spec. Char. Elongated-ovate, convex, striated, 

 anteriorly submucronated ; anterior lobe 

 small, separated by a keel; beaks nearly 

 close. 



Rather more than twice as wide as long, and smallest 

 at the extremities ; the ridge that defines the anterior 

 lobe forms a projecting angle upon the margin ; the 

 anterior side is very obliquely truncated ; the valves are 

 rather flat. 



Found along with a great number of small and even 

 minute shells, among which are the Pileoli (tab. 432.) in 

 limestone at Ancliff, by the Rev. George Cookson. Many 

 of the shells that accompany it appear at first sight to be 

 the young of larger species, but upon a careful exami- 

 nation they will perhaps prove as distinct as the one 

 b^ore us. 



CUCULLiEA rudis. 

 TAB. CCCCXLVIL— /^. 4. 



Spec Char. Transversely oblong, convex, 

 rugged and longitudinally ribbed; beaks 

 incurved, nearly close together; anterior 

 lobe not defined. 

 I^ARGE rugose ridges occupy both sides of this shell, the 

 middle is deeply striated ; the anterior side is not dis- 

 tinguishable from the middle portion of the valve. 



A very imperfect specimen, but the only one we have 

 seen ; it is in the Rev. Mr. Cookson's suite of Shells found 

 in the limestone at Ancliff*. We are happy to have it in 

 our power thus to acknowledge our thankfulness for the 

 loan of the whole collection for examination ; it is very 

 remarkable for the great number of* species of Shells, 

 Corals and Crinoidea it contains. 



