TAB. III. 



Humerus of Pterodactyle. 



Fig. 



1. Proximal or upper end of right humerus, oblique view of palmar and ulnar 



surfaces. 



2. Ditto, anconal surface. 



3. Ditto, palmar surface. 



4. Proximal end of a left humerus, drawn without reversing, oblique view as 



in fig. 1. 



5. Proximal end of a right humerus of a smaller species of Pterodactyle, 



oblique view as in figs. 1 and 4. 



6. Proximal end of the right humerus of a bird {Vultur monachiis), oblique 



view of palmar and ulnar surfaces. 



7. Ditto, anconal surface. 



8. Ditto, upper surface, or head. 



9. Proximal end of the right humerus of a crocodile {Crocodilus biporcatus), 



oblique view of palmar and ulnar surfaces. 



10. Ditto, anconal surface. 



1 1 . Ditto, oblique view of the palmar and radial surfaces. 



12. Ditto, upper surface, or head. 



All the foregoing figures are of the natural size ; 1 and 3, probably of 

 Pterodactylus Cuvieri, are from the White Chalk of Kent ; 4, probably 

 of Pter. Sedgicickii, and fig. 5, are from the Upper Green-sand 

 formation, near Cambridge. The foregoing specimens are in the 

 Woodwardian Museum of the University of Cambridge. 



