PLATE XXXV. 



PAGE. 



Fig. 1. Flyonius pecUnatxts. Natural size 377 



2, 3. Ptyonius pectinatus. Natural size 377 



4. Cranium of a Ptyonius. Natural size 373 



5. Oestocephalus. Maxillary and dentary bones, wilh teeth. Natural size 380 



G. Peplorfdna (mthracma. Cranium from below, displaying mandibles, hyoid bone, operculum, 



etc Natural size 410 



