Eastman, — Dinichthys. 
PLATE 5. 
5 
Fig. 1. Postero-ventro-median plate of an unknown Dinichthyid species. X 
(approximately). M. C. Z., Cat. No. 1475. This plate is preserved in 
counterpart, and a portion of the bone adheres to the opposite side. 
Fig. 2. Dinichthys (2) bohemicus (Barr.). X 4. Middle Devonian (Etage Ge); 
Chotec, Bohemia. M. C. Z., Cat. No. 1376. Detached dorso-median 
plate, more highly arched and rounded in outline than that shown in 
Plate 2, Fig. 3, but having the same ornamentation. 
ears only in section where the matrix has 
The carinal 
process is slender, and app 
been ground away. 
Dorso-median plate of a young individual representing an unknown 
Dinichthyid species, seen from the under side. X ł. Cleveland 
Shale ; vicinity of Cleveland, Ohio. Original preserved in Museum 
of Oberlin College. 
Fig. 4. Dinichthys eifeliensis Kayser. X 4, 
Internal aspect of right antero-ventro-lateral plate. 
No. 1474. 
Middle Devonian; Fifel District. 
M. C. Z., Cat. 
