PLATE 57. 



Cladopoea tela, Nov. Spec. Devonian. 



1. Front lateral view of a portion of the base and fronds of a nearly 



perfect cofallum, from the Middle Devonian rocks, Falls of the 

 Ohio. Collection of the author. 



Cladopora fibrata, Nov. Spec. Devonian. 



2. Front lateral view of the reticulating fronds of a fragment, from the 



Lower Devonian, Falls of the Ohio. Collection of the author. 



