PLATE 134. 



Zaphrentis conigera. Devonian. 



1. Left lateral view of a eorallum. 



2. Right lateral view of a eorallum. 



Both from the Lower Devonian rocks, Falls of the Ohio. 



Zaphrentis compressa. Devonian. 



3. Posterior view of a eorallum, from the Lower Devonian rocks, 



Falls of the Ohio. 



Zaphrentis explanata, Nov. Spec. Devonian. 



4. Anterior view of an elongated conical eorallum of medium size. 



5. Left lateral view of a corniform eorallum. 



6. View of the calyx and oblique anterior view of a eorallum of 



common form. 

 From the dark-red clay derived from the decomposition of the 

 encrinal limestone of the Upper Devonian, near Louisville. 



Zaphrentis exilis, Nov. Spec. Devonian. 



7. Posterior view of a eorallum. 



8. Anterior view of a eorallum. 



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



Zaphrentis torquata, Nov. Spec. Devonian. 



9. 10. Lateral views of coralla. 



11. View of the calyx of a eorallum. 



From the red clay of the Middle Devonian, near Louisville. 



Zaphrentis nodulosa. Devonian. 



12. Left lateral view of a eorallum, from the Lower Devonian rocks, 



Falls of the Ohio. 



13. Left lateral view of the lower portion of a eorallum, from the 



ferruginous clay of the Lower Devonian, near Louisville. 

 The examples figured in this Plate belong to the collection of the 

 author. 



