EXPLANATION OF TLATE I. 



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



Fig. 1. Right scapula, external sui-face. 



Fig. 2. The same, internal surface. 



Fig. 3. The same, anterior view. 



Fig. 4. The same, posterior view. 



Fig. 5. Right femur, posterior view. 



Fig. 6. The same, anterior view. 



Fig. 7. The same, internal surface. 



Fig. 8. The same, external surface. 



Fig. 9. The same, proximal end, seen from above. 



Fig. 10. Tlie same, distal end. seen from below. 



