PLATE 83. 



Cyathophyllum multicrexa, Nov. Spec. Devonian. 



1. Right lateral view of a corallum of slender habit, from the Middle 



Devonian red clay, near Louisville. 



2. Left lateral view of a symmetrical corallum of average size, from 



the same horizon and neighborhood. 



3. Right lateral view of a young corallum, from the blue clay of the 



Middle Devonian, Falls of the Ohio. 



4. Calyx of a corallum. 



5. Calyx of a very large corallum of which the circular elevated rim 



of the diaphragm has been fortuitously broken down. 

 Examples 4 and 5 are from the horizon and locality of example 3. 



Cyathophyllum cedipus, Nov. Spec. Devonian. 



6. Left lateral view of a small corallum, from the Lower Devonian 



ferruginous clay, near Louisville. 



7. Central view of a small corallum. 



8. Left lateral view of a corallum of medium size. 



9. Right lateral view of a corallum. 



Examples 7, 8, 9, are from the horizon and vicinage of example 6. 



Cyathophyllum flos, Nov. Spec. Niagara. 



10. Calyx view of a corallum from the Upper Niagara white clay, near 



Louisville. 



Cyathophyllum coralliferum. Devonian. 



11. Calyces of corallets, varying in size, imbedded in Stromatopora, as 



is usual with the species; from the blue clay of the Middle 

 Devonian, Falls of the Ohio. 



Cyathophyllum pumilus, Nov. Spec. Devonian. 



12. Left lateral view of a corallum slightly below medium size, with 



apical scar; from the Middle Devonian blue clay, Falls of the 

 Ohio. 



Cyathophyllum vvixchelli, Nov. Spec. Devonian. 



13. Right lateral view of a corallum of average size, with small cir- 



cular apical scar. 



14. Calyx of a corallum. 



From the Middle Devonian blue clay, Falls -of the Ohio. 



The examples figured in this Plate are from the collection of the 

 author. 



