Cope] 44>4 [May ]&? 



tlie culcaneum only. In the tarsus then there are four types of articula- 



Figt 6. Fig. 7. 



Fig. 6.— Left posterior foot of Phenacodus primcevus, one-third natural size 

 (original). 



Fig. 7.— Bight posterior foot of Hyrax capensis (from Cuvier). Ca. calca- 

 neuni ; a. astragalus; n. navicular; cm. cuboid; ecc. ectocuneiform : mc. raeso- 

 cuneiform ; enc. entocune'iform. 





SB 



Fig. 8. 



Fig. 8.— Posterior foot of Coryphodon (original). 



