EXPLANATION OF PLATE II. 



Pachycyon robustus. (All the figures are of natural size.) 



Fig. 1. Right humerus, external surface. 



Fig. 2. The same, internal surface. 



Fig. 3. The same, anterior surface. 



Fig. 4. The same, posterior surface. 



Fig. 5. The same, proximal end, from above. 



Fig. 6. The same, distal end, from below. 



Fig. 7. Right tibia, anterior surface. 



Fig. 8. The same, posterior surface. 



Fig. 9. The same, external surface. 



Fig. 10. The same, internal surface. 



Fig. 11. The same, proximal end, from above. 



Fig. 12. The same, distal end, from below. 



