PLATE 23. 
Favosttes arpor, Nov. Spec. Devonian. 
1. Lateral view of a fragment of a frond from the Lower Devonian 
strata, Falls of the Ohio. Collection of Mr. McConathy. 
Favosites cymosus, Nov. Spec. Devonian. 
2. Lateral view of a corallum from the blue clay of the Middle Devo- 
nian, falls of the Ohio. Collection of the author. 
3. Upper surface of a corallum from the Lower Devonian, Falls of the 
Ohio. Collection of the author. 
4, Lateral view of a corallum from the same place and horizon as 
example 3. Collection of the author. 
5. Lateral view (prostrate) of a ‘“ sprout,” or cyme, of uncommonly 
elongated growth, from the horizon and locality of example 2. 
Collection of the author. 
