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PLATE 109, 
ERIDOPHYLLUM RUGOSUM. Niagara. 
1. Rear lateral view of corallets (prostrate), from the red clay of the 
Upper Niagara, near Louisville. [Jejune example.] 
ERIOPHYLLUM HURONICUM. Niagara. 
2. Front lateral view of a fragment, from ‘the horizon and neighbor- 
hood of E. rugosum, Fig. 1. 
ERIDOPHYLLUM DivipuuM, Nov. Spee. Devonian. 
3. View of the upper surface of a composite corallum, partly imbed- 
ded in chert, from the red clay of the Upper Niagara, near 
Louisville. 
4. Lateral view of a composite corallum, from the white clay of the 
Upper Niagara, near Louisville. 
5. Lateral view of a composite corallum, from the red clay of the 
Upper Niagara, near Louisville. Collection of Mr. Nettelroth. 
6. Lateral view of two corallets detached from their parent, showing 
connective processes; from the ‘Upper Niagara red clay, near 
Louisville. 
7. Right lateral view of a corallum, from the Upper Niagara white 
clay, near Louisville. 
8. Left lateral view of a corallum, from the Upper Niagara red clay, 
near Louisville. 
9. Right lateral view of a small corallum. 
10. View of the calyx of a corallum. 
11. Lateral view of a small gemmiferous corallum. 
12. View of the calyx of the parent corallet, with gems adherent. 
The last four specimens are from the Upper Niagara red clay, 
near Louisville. : 
With the exception of specimen 5, the examples figured in this 
Plate belong to the collection of the author, 
