PERISSODA C T YLA. 



699 



greater extent with the navicular than with the cuboid. 

 The last-named bone is of less importance than in the 



^ ) cub. 



Fig. 254. — Side view of 

 lower part of Pony's fore 

 leg. (From Edinburgh 

 Museum of Science and 

 Art.) 



h, Distal end of humerus ; k, 

 olecranon process of ulna ; ?-, , . . ^ , , 



radius; sc, scaphoid; /, lunar; FiG. 255. — Side view of ankle 



c, cuneiform ; ni, os magnum ; and foot of Horse. (From Edin- 



»«, unciform ;/,pisiforn, ;,«.-. 4, ,-,^„.gh Museum of Science and 



hphnt ol lourth metacarpal ; inc. -^^ => 



third metacarpal; s, sesamoid; Art.) 



I, 2, 3, phalanges of third digit. a.. Astragalus; c, calcaneum ; ?^, 



navicular; f.c, external cuneiform ; cub., 

 cuhoid ; i)it. 3, third metatarsal; ))tt. 4, 

 splint of fourth metatarsal; .j., sesamoid ; 

 ph. 1-3, phalanges of third digit. 



Artiodactyla. The calcaneum does not articulate with the 

 lower or distal extremity of the fibula. The femur has a 



