EXPLANATION OF PLATE XLVII. 



Muzzles and crania of Saurodontidce, natural size. 



Fig. 1. Inferior view of vomer and etbmoid bones of Portlieus lestrio, Cope, obliquely depressed, display- 

 ing cotyli for tbe maxillary aud preinaxiUary condyles. 



2. Inferior view of vomer and etbmoid of an uukuown species, not distorted. 



3. Tbe same view of Daptinus phlcbotomus. 



4. Superior view of tbe same specimen. 



5. Profile of an unknown Saurodout. 



C. .Superior view of etbmoid of Daptinus plilebolomus, Cope. 



7. Inferior view of cranium of Portlieus larcuatus. 



8. Superior view of tbe same cranium. 



9. Palatiuo bono, with malleolar body, of Porlheus arcuatus, from tbe outer side. 



