Pterosauria. 



PLATE 9. 



Pterodactijlus Sedgwickii and Pterodactylus Fittoni. 



Fig. 



1. Humeral end of anchylosed scapula a, and coracoid b, with the glenoid articular 



cavity. The letter c indicates the base of the broken-off anterior or angular 

 production of the coracoid. 



2. Front view of the same specimen. 



3. Similar view of the glenoid articular cavity of a similar sized Pterodactyle. 



4. Glenoid articular cavity of a smaller specimen, and probably different species. 



5. Inner Surface of the anchylosed humeral end of the scapula and coracoid of a still 



smaller Pterodactyle. 



6. The scapulo-coracoid arch of Pterodactylus (Dimorphodon) macronyx, Bkd. 



7. The articular head of the right humerus of a large Pterodactyle. 



8. The articular head of the left humerus of a large Pterodactyle. 



9. The articular head of the left humerus of a smaller Pterodactyle. 



10. The articular head of the right humerus of a similar sized Pterodactyle. 



1 ] . The articular head 1 



1 2. (The convex side) of the proximal end of the humerus of a Pterodactyle. 



13. 



14. 



(The concave side) 

 (The convex side) 



of the proximal end of the humerus of a smaller Ptero- 

 15. (The concave side) J dactyle. 

 16—20. Different teeth of Pterodactyles. 



All the figures are of the natural size, and from specimens in the Woodwardian 

 Museum of the University of Cambridge, which were found in the Upper 

 Green-sand (Neocomian) near that town. 



