PLATE 86. 
CYATHOPHYLLUM RADICULA. Niagara. 
1. Left lateral view of large corallum, with the gem of an inferior 
calyx still adherent, from the Upper Niagara white clay, near 
Louisville. Collection of Mr. Gaines. 
2. 3. 4. Typically flexuous coralla: example 4 from the Upper Niagara 
red clay, the others from the slightly lower horizon of the white 
clay, near Louisville. Collection of the author. 
5. A sessile corallum, with calycinal gem, from the horizon and neigh- 
borhood of example 4. Collection of the author. 
6. Right lateral view of a stout sessile corallum, with inchoate root- 
like processes of attachment, common to most Niagara cyatho- 
phylloids; from the horizon and locality of example 4. Collec- 
tion of the author. 
CYATHOPHYLLUM ToRNATUM, Nov. Spec. Devonian. 
7. Left lateral view of a corallum from the inferior stratum of the 
dark-red encrinal-limestone clay of the Upper Devonian, near 
Louisville. Collection of the author. 
8. Exterior view of a corallum, showing rounded apex and wrinkled 
epitheca, from the horizon and neighborhood of example 7. 
Collection of the- author. 
9. Calyx of a corallum, from the same horizon and place. Collection 
of the author. . 
10. 11. Left lateral views (prostrate) of unusually long and slender 
coralla, from the horizon and vicinage of the previous examples. 
Collection of the author. 
CYATHOPHYLLUM SCYPHUS. Devonian. 
12. Right lateral view of a corallum of geniculated form. 
13. Left lateral view of a corallum of medium size, with circular apical 
scar. 
14. Calyx of a corallum, with gem. From the horizon and vicinage 
of C. tornatum, figured in this Plate. 
Collection of the author. 
