382 Wortman — Studies of Eocene Mammalia^ etc. 



inner border. The distal extremity is enlarged, rugose, flat- 

 tened from before backwards, and presents many sulci for the 

 passage of tendons. The articular surface is concave in both 



48 



Figure 48. — Right manus of Dromocyon vorax Marsh; front view; three- 

 fourths natural size. (Type.) 



c, cuneiform; u, unciform; m, # magnum; tm, trapezium; td, trapezoid; s, 

 scaphoid; ce, centrale; I, lunar; p,' pisiform; III, phalanges of third digit. 



directions, and is divided by a distinct fore and aft ridge into 

 an outer and an inner facet for contact with the scaphoid and 

 lunar, respectively. 



[To be continued.] 



