PLATE 31. 



Favosites limitaris. Devonian. 



1. Lateral view of the upper fronds of a corallum, partly freed from its 



matrix, in which the corallets at their orifices are more oblique to 

 the axis than is common; from the Lower Devonian, Falls of the 

 Ohio. Collection of Mr. McConathy. 



Favosites cariosus, Nov. Spec. Devonian. 



2. Front lateral view (prostrate) of the base and trunk of a corallum, 



from the ferruginous clay of the Lower Devonian, near Louisville. 

 Collection of the author. 



