PLATE 81. 
CYATHOPHYLLUM POcILLUM, Nov. Spec. Devonian. 
1. Central view of a rapidly expanding corallum. Collection of Mr. 
McConathy. 
2. Central view of a corallum of typical size and shape. Collection 
of the author. 
3. Calyx of a corallum. Collection of the author. 
5. Corallum of gigantic dimensions, with oblique section of the calyx- 
wall, showing the sub-vesicular cellulose tissue of the interloculi. 
Collection of the author. 
Found in the red clay of the Middle Devonian, near Louisville. 
BLoTHROPHYLLUM coriuM, Nov. Spec. Devonian. 
4. Right lateral view of corallum, with apex flattened by attachment 
to an extraneous object, from the Middle Devonian red clay, 
near Louisville. Collection of the author. 
