PLATE XXVI. 



Figs. 1,2. — Siypolophus aculeatua Cope, from specimen in Princeton College Museum; a, both jaws in 

 profile ; b, maxillary bone from below ; c, mandible from above. Page 299. 



Figs. :?-10. — ifesonyx obtusid^ine Cope. Natural size ; 3, partial dentition of the lower jaw ; a, canine ; 

 (f, end of the root ; b, first, c, second premolars ; d, anterior molar ; e, the same from above ; /, poster- 

 ior molar; g, the same from above. Page 355. 



Fig. 4. — Left malar bone. 



Fig. 5. — Extremity of left femur, from the outer side ; 5 a, distal, and 5 6, inferior views. 



Fig. 6. — Proximal end of right tibia, proximal view; 6 a, external view. 



Fig. 7. — Patella, from front ; a, from side. 



Fig. 8. — Astragalus, inner side ; 8 a, from above ; 8 b, from below. 



Fie. 9. — Distal extremital view of astragalus and calcanenm in natural association ; a, ianeT ; b, enter 

 astragaline facets; c, ciiboid facet of calcaneum. 



Fig. 10. — Calcaneum, from above; distal portion broken oflf. 



Fig. 11. — Portion of ulna, interior view. 



Fig. 12. — Scapula, proximal view ; 12 a, external view. 



