PLATE xe 
DINICHTHYS GOULDH, (p. 150). 
Fic. 1. Circle of sclerotic plates. 
. Premaxillary tooth. 
3. Supra-scapula, outside. 
4. Suborbital plate, ontside, natural size. 
5. Anterior extremity of mandible. 
Cleveland shale, Berea, Ohio. 
wore 
248 
