PLATE 52. 
CLapopora BIFURCA, Nov. Spec. Devonian. 
1. Portion of a corallum investing Favosites ramulosus, from the Lower 
Devonian, Falls of the Ohio. Collection of the author. 
CLADOPORA CRYPTODENS. Devonian. 
2. Dichotomously branching example, from the Lower Devonian, Falls 
of the Ohio. Collection of the author. 
3. Frond (inverted) from the same horizon and locality. Collection of 
the author. 
4. Fragment from the ferruginous clay of the Lower Devonian, near 
Louisville. Collection of the author. 
CLADOPORA BILLINGSI. Devonian. 
5. Fragment (inverted) from the Lower Devonian clay, near Louisville. 
Collection of the author. 
CLADOPORA ALPENENSIS. Devonian. 
6. Fragment from the horizon and place of example 5. 
Ciapopora acupicra, Nov. Spec. Devonian. 
7. 8. Portions of fronds from the Lower Devonian, Falls of the Ohio. 
Collection of the author. 
CLADOPORA DESQUAMATA, Nov. Spec. Devonian. 
9. Portion of a corallum with its pedicle attached to the interior of 
the calyx of Zaphrentis ungula, from the Lower Devonian, Falls 
of the Ohio. Collection of the author. 
