PLATE XXIV 



Fic. r 



Fig. 2 



Yic. I. Skull of Oitohippidiuin , //', prcorlji'lal depiession. 



Fig. 2. Crown surfacLS of right upjier molar teeth of Eqmis 

 (A and D), Ilippidittin (C), and Hippanou (E). A and 

 Bare almost uinvorn. a, anterior; /', posterior pillar. 



