PLATE 108. 
ERIDOPHYLLUM SENTUM, Nov. Spec. Niagara. 
1. Upper surface view of a corallum, from the Upper Niagara red 
clay, near Louisville. Collection of the author. 
DIPHYPHYLLUM BELLIS, Nov. Spec. Devonian. 
2. Upper surface view of a corallum, from the Middle. Devonian red. 
clay, near Louisville. Collection of the author. 
DIPHYPHYLLUM ARCHIACI. Devonian. 
3. Lateral view of a céorallum, from the dark-red clay derived from 
the encrinal limestone of the Upper Devonian, near Louisville. 
Collected by Mr. Goodwin. 
