PLATE III. 



ODONTOBNITHES. 

 Cervical Vertebrae of Hespeeornis regalis Marsh. 



All Figures Natural Size. Page. 



Fig. 1. — Second vertebra, or axis; lateral view, seen from the left. Neural spine restored, 18 



la — Superior view. 



lb — Anterior view, 

 lc — Inferior view. 



Fig. 2. — Third cervical vertebra ; lateral view, seen from the left, 20 



2a — Superior view. 

 ib — Anterior view. 

 2c — Inferior view. 



Fig. 3. — Fourth cervical vertebra ; lateral view, seen from the left. Hypapophysis restored, 22 



Za ■ — Inferior view. Pleurapophyses restored. 



3b — Anterior view. Outer wall of foramina for vertebral artery restored. 



3c — Inferior view. 



Fig. 4. — Fifth cervical vertebra ; lateral view, seen from the left, ._ 24 



4a — Superior view. 

 4J> — Anterior view. 

 4c — Inferior view. 



Fig. 5. — Sixth cervical vertebra ; lateral view, seen from the left, 25 



ha — Superior view. 

 56 — Anterior view. 

 ho — Inferior view. 



Fig. 6. — Seventh cervical vertebra ; lateral view, seen from the left, .- 27 



6a — Superior view. 

 6b — Anterior view. 

 6c — Inferior view. 



Fig. V. — Eighth cervical vertebra ; lateral view, seen from the left, 29 



'la — Superior view. 

 lb — Anterior view. 

 7c — Inferior view. 



Fig. 8. — Ninth cervical vertebra ; lateral view, seen from the left, _. 30 



8a — Superior view. 

 85 — Anterior view. 

 8c — Inferior view. 



