209 



of Hipparion. One of the specimens is an external cuneiform bone, of which 

 an upper view is given in Fig. 13, Plate XX. Another specimen of the same 

 bone has the navicular bone co-ossified with it. A third specimen consists 

 of a first ungual phalanx 17 lines long at the side, and 14J lines wide at the 

 upper extremity. 

 27 g 



