PLATE 56. 
CLADOPORA RG@MERI. Devonian. 
1. Corallum (prostrate) partly imbedded in its matrix; from the Lower — 
Devonian strata, Falls of the Ohio. Collection of the author. 
CLADOPORA BIFURCA, Nov. Spec. Devonian. 
2. Upper fronds of a corallum partly imbedded in its rock matrix; from 
the Lower Devonian, Falls of the Ohio. Collection of the author. 
