PLATE 109. 



Eridophyllum rugosum. Niagara. 



1. Rear lateral view of corallets (prostrate), from the red clay of the 



Upper Niagara, near Louisville. [Jejune example.] 



Eridophyllum huronicum. Niagara. 



2. Front lateral view of a fragment, from the horizon and neighbor- 



hood of E. rugosum, Fig. 1. 



Eridophyllum dividuum, Nov. Spec. 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 A'iow 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. 



