EXPLANATION OF PLATE XLIX. 



Figs. 1-4. Daplinus pliUhoiomns, Cope, natural size. 



Fig. 1. The luandiluilar and palatine bones compressed in one mass, viewed from above; 1 a, tbe same 

 from below. 



2. Maxillary and superior lamina of premaxillary bones of the left side, from without ; 2 a, the same, 



from the inner side. The longitudinal lines represent fractures only. 



3. Right dentjry bone against the palatine ; the latter with malleolar process broken ofl'. 



4. Left dentary. 



5. Part of maxillary bone of SauroccjjliaJiis arapahovius, Cope, natural size; inverted by artist. 

 G. PaUitino bono of Stratodits ajjicalis, Cope, outer aspect, natural size ; G a, same, inner side. 



8. Premaxillary and part of maxillary bones of the same, natural size; 8 a, same, from below ; 8 b, 



teeth of the same, enlarged. 



9. Distal extremity of premaxillary bone oi Empo nepaolka, Cope; type-specimen. 



