Am Jour. Sci., Vol. XXXVII, Feb., 1914. 



Plate VII 



Fig. 1. Skull of Parahipparion sp., from Avusbamba, superior view, 

 x 0-80. 



Fig. 2. Skull of Parahipparion sp., from Ayusbamba, inferior view. 

 x 0-28. 



