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. 

 x0.35 



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 



