PLATE XXX. 



ODONTOEOTTHES. 

 Wing bones of Apatoknts and Ichthyornis. 



All Figures twice Natural Size. Page. 



Fig. 1. — Left radius of Apatomis celer Marsh. ; proximal portion, inner view, 152 



Fig. 2. — Left radius of Apatomis celer ; proximal portion, inferior view, 152 



Fig. 3. — Left radius of Apatomis celer ; proximal portion, exterior, or ulnar, surface, - . . 152 



3a — Proximal articular surface. 



Fig. 4. — Left radius of Apatomis celer; proximal portion, superior view, 152 



Fig. 5. — Left radial carpal of Apatomis celer ; anterior view, 153 



5a — Inner view. 

 55 — Posterior view. 

 5c — Exterior view. 

 5d — Superior view. 

 5e — Inferior view. 



Fig. 6. — Left ulnar carpal of Apatomis celer; anterior view, 154 



6a — Exterior view. 

 85 — Posterior view 

 6c — Inner view. 

 6 a" — Inferior view. 

 6e — Superior view. 



Fig. 7.' — Right humerus of Ichthyornis victor Marsh ; inner, or posterior, view, 149 



Fig. 8. — Right humerus of Ichthyornis tener Marsh ; distal portion. Inner, or posterior, viev,-, 149 



8a — Ulnar surface. 



85 — Outer or anterior view. 



Sc — Radial surface. 



Sd — Distal end. 

 Fig. 9. — Left radius of Ichthyornis victor Marsh ; proximal portion, inner view, 151 



9a — Inferior view. 



95 — Exterior, or ulnar, surface. 



9c — Superior view. 



9d — Proximal end. 



Fig. 10. — Left radius of Ichthyornis victor; distal portion, inner, or anterior, view, 151 



10a — Inferior view. 



105 — Exterior, or ulnar, surface. 



10c — Superior view. 



lOd— Distal end. 



Fig. 11. — Left ulna of Ichthyornis validus ; exterior view, 152 



Fig. 12. — Left ulna of Ichthyornis validus; superior view 152 



12a — Proximal end. 



Fig. 13. — Left ulna of Ichthyornis validus; inner, or radial, surface, 152 



Fig. 14. — Left ulna of Ichthyornis validus ; inferior view, 152 



14a — Distal end. 



