PL^TE XXVII. 



ODONTOENITHES. 



Cervical and dorsal Vertebras of Ichthyornis victor Marsh. 



All Figures twice Natural Size. Page. 



Fig. 1. — Atlas and axis, or first and second cervical vertebra ; lateral view, seen from the left, . 127 

 la — Superior view. 

 15 — Anterior view 

 lc — Inferior view. 

 Id — Posterior view. 



Fig. 2. — Third (?) cervical vertebra ; lateral view, seen from the left, 130 



2a — Superior view. 

 25 — Anterior view. 

 2c — Inferior view. 

 2d — Posterior view. 



Fig. 3. — Posterior cervical vertebra ; lateral view, seen from the left, 131 



3a — Superior view. 

 35 — Anterior view. 

 3c — Inferior view. 

 3d — Posterior view. 



Fig. 4. — Anterior dorsal vertebra ; lateral view, seen from the left, _ 135 



4a — Superior view. 

 45 — Anterior view. 

 4c — Inferior view. 

 4d — Posterior view. 



Fig. 6. — Posterior dorsal vertebra ; lateral view, seen from the left, 157 



5a — Superior view. 

 55 — Anterior view. 

 Be — Inferior view. 

 Bd — Posterior view. 



