PLATE XXVII. 



PAGE. 



Fig. 1. Tudita/nua radiatus, Cope. Head. Natural size > 394 



2. Brachydectea Newberryi, Cope. Jaws. Twice natural size 388 



3. Oestocephalue rectidens. Cope. Twice natural size 386 



4. Vertebias, perhaps of the same. Natural size * 386 



5. Oestoc^kimis? remex, Cope. Twice natural size .-. 381 



6. Ptyonms Marshii, Cope. Twice natural size 375 



7. FtyoniAis pectmatus, Cope, Twice natural size 377 



