PLATE 101. 



Cyathophyllum pocillum, Nov. Spec. Devonian. 



1. Longitudinal section of a corallum, from the Upper Devonian red 



clav, near Louisville. Collection of the author. 



Calceola proteus, Nov. Spec. Niagara. 



2. Inner surface of an operculum, from the Upper Niagara white 



clay beds, near Louisville. Collection of Dr. Knapp. 



Choxophi'llum magxificum. Devonian. 



3. View of the calyx of a corallum of medium size, from the man- 



ganese limestone rocks of the Lower Devonian, Falls of the 

 Ohio. Collection of the author. 



Blothrophyllum louisvillense, Nov. Spec. Devonian. 



4. Left lateral view of a corallum, from the Middle Devonian blue 



clay, Falls of the Ohio. 



5. Similar view of a corallum, from the same horizon and place. 



Blothrophyllum cixctutum, Nov. Spec. Devonian. 



6. Longitudinal section of a fragment, showing arrangement of the 



diaphragms, etc., from the locality and horizon of the preced- 

 ing species of Blothrophyllum. Collection of Dr. Knapp. 



Cyathophyllum pumilus, Nov. Spec. Devonian. 



7. View of the calyx of a corallum, from the red clay of the Middle 



Devonian, near Louisville. Collection of the author. 



Blothrophyllum corium, Nov. Spec. Devonian. 



8. Left lateral view of a corallum, from the upper part of which the 



epitheca has been fortuitously denuded; from the Middle Devo- 

 nian red clay, near Louisville. 

 11. Right lateral view of a corallum, from the Middle Devonian blue 

 clay, Falls of the Ohio. 



9. View of the calyx of a sessile corallum, from the horizon and 



neighborhood of example Fig. 8. 

 The specimens are from the collection of the author. 



Aulacophyllum PARVUM, Nov. Spec. Devonian. 



10. View of the calyx and oblique anterior view of a corallum, with 

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

 of the Ohio. Collection of the author. 



