PLATE 136. 
ZAPHRENTIS MACONATHI, Nov. Spec. Devonian. 
1. Right lateral view of a corallum of medium size, from the blue 
clay of the Middle Devonian rocks, Falls of the Ohio. 
2. Left lateral view of a corallum, from the same horizon and locality. 
3. Anterior view of the upper part of a corallum of gigantic dimen- 
sions, with wall broken down, so as to show the radial lamellze 
and the smooth plane diaphragm of the calyx; from the Lower 
Devonian rocks, Falls of the Ohio. 
4. Right lateral view of a young corallum, from the Middle Devonian 
red clay, near Louisville. 
The specimens figured in the Plate belong to the collection of the 
author. 
