PLATE 68. 
SYRINGOPORA HISINGERI. Devonian. 
1, Upper surface of a fragment from the ferruginous clay of the Lower 
Devonian, near Louisville. 
SYRINGOPORA STRAMINEA, Nov. Spec. Devonian. 
2. (Upper right specimen.) Lateral view of a fragment whose horizon 
is about one foot lower than the lowest stratum in which S. 
hisingeri is found; from the ferruginous clay of the Lower Devo- 
nian, near Louisville. . . 
SYRINGOPORA TABULATA. Devonian. 
3. Lateral view and also an oblique view of the upper surface of a 
fragment from the red clay of the Middle Devonian, near Louis- 
ville. 
SYRINGOPORA BOUCHARDI. Devonian. 
4. Under surface of a corallum whose appressed corallets indicate the 
form of the marine object to which the incipient community was 
attached; from the Middle Devonian red clay, near Louisville. 
5. Upper surface of a corallum incrusting Cyathophyllum corniculum, 
from the upper rock strata of the Middle Devonian, Falls of the 
Ohio. 
The specimens figured in this plate belong to the collection of the 
author. 
