Plate XXVI. 



Figures 1-3. Bones of the left wing preserved in Pteranodon sp., No. 2774; radial side. 

 x 0.35 



Figure 1. Distal end of the metacarpal and first phalanx of digit V. 

 Figure 2. Second phalanx of digit V. 

 Figure 3. Third phalanx of digit V. 



Figures 4-7. Bones of the right fifth digit of Pteranodon sp., No. 2470; radial side. 

 xO.35 



Figure 4. First phalanx. 

 Figure 5. Second phalanx. 

 Figure 6. Third phalanx. 

 Figure 7. Fourth phalanx. 



Figures 8, 9. Third and fourth phalanges of the fifth digit of the wing of Pteranodon 

 sp., No. 2591. x 0.35 



