PLATE VIII. 



ODONTOEmTHES. 

 Humerus, Scapula and Shoulder-girdle of Hesperornis regalis Marsh. 



All Figures Natural Size. Page. 



Fig. 1. — Right humerus ; inner surface, 62 



Fig. 2. — Right humerus ; radial side, . . . -.- 62 



la — Proximal end. 



Fig. 3. — Right humerus ; ulnar side, 62 



b — Distal end, showing entire absence of articulation. 



Fig. 4. — Right humerus ; external surface, - . 62 



Fig. 5. — Left scapula; anterior view, 58 



Fig. 6. — Left scapula; inner surface, , 58 



6a — Proximal end. 



Fig. 7. — Leftscapula; posterior view, 58 



Fig. 8. — Sternum and scapular arches, restored ; front view, 60 



st — Sternum. 

 cl — Clavicle. 

 c — Coracoid. 

 s — Scapula. 

 h —I 



Note. — In figure 8, portions of the scapular arch are diminished in size by the perspective. This is especially 

 Qoticeable in the humerus. 



