PLATE LIX. 



Fig. 1. Dorsal view of an anterior caudal vertebra. X ^/4. 



Fig. 2. A cross section of the sacrum to show the sacral enlargement. 



X Vs. 

 Fig. 3. A small dermal spine. X Vz- 



Figs. 4 and 5. Upper and lower portions of right fibula. X Vi- 

 Figs. 6 and 7. Dorsal surface of posterior and anterior segments of the 



sacrum. 

 Fig. 8. The left ulna seen from behind. One-tenth natural size. 

 Fig. 9. The left ulna seen from the side. One-tenth natural size. 



