PLATE 38. 



Michelinia plana, Nov. Spec. Devonian. 



1. Upper surface of a corallum from the encrinal limestone clay of the 



Upper Devonian, near Louisville. Collection of the author. 



2. Under surface of a corallum, with epitheca partially preserved, from 



the yellow clay of the Upper Devonian, near Crab Orchard, Ky. 

 Collection of the author. 



Michelixia favositoidea. Devonian. 



3. Upper surface of a fragment from the red clay of the Middle Devo- 



nian, near Louisville. Collection of the author. 



