Plate XVI. 



Figure 1. — Distal end of the right tibia, and the podial bones of Pteranodon sp., 

 No. 2502 ; dorsal view, x 0.66 



Figure 2. — Digits II, III, and IV of the right manus of Pteranodon sp., No. 2428; missing 

 parts are represented in outline, x 0.66 



Figure 3. — Prepubis of Pteranodon^ sp., No. 2472. x 1.0 



Figure 4. — Supposed sternal rib of the type of P. ingens Marsh, No. 1175. x 1.0 



Figure 5. — Nearly complete restoration of the sternum of Pteranodon sp., No. 2546; seen 

 from below, x 0.66 



