PLATE 126. 



OYSTiiMivLi^rM (!HA.\i)E. Devonian. 



1. .Vnterioi- ^iew (»f an adult corallum, with a portion of the wall 



removed, so as to show the delicately laminated calyx wall and 

 the floor; from the Lower Devonian rocks, Falls of the Ohio. 



Cystiphyllum limhatum, Nov. Spec. Devonian. 



2. Left lateral view of the upper part of a corallum, from the Lower 



Devonian rocks, Falls of the Ohio. 

 Collection of the author. 



