K L. Troxell — Early Pliocene One-Toed Horse. 343 



bones are large proximally, but at once decreasing in size they 

 run at a uniform diameter to the middle ; in the next fourth 

 of the distance they decrease to a width of about 3 mm and a 

 thickness of less than l-5' nm . The distal ends are enlarged to 



Fig. 



%\\ IV 



Fig. 7. Right Manus. Front, side and back views. One-third natural 

 size. 



receive the pointed epiphyses, the larger one of which measures 

 gmm j n ] en gth. They show no evidence of articular facets ; in 

 fact their very sharp ends eliminate the possibility of their 

 ever having borne phalanges. 



