MAMMALIA 



463 



most cases lead an arboreal life and feed upon fruit, eggs, 

 or other food which they find in trees ; and a less compact 

 assemblage of groups known as the. Clawed Mammals or 



4 3 



Fig. 338. —The 

 bonesof the fore- 

 leg of a pig. — 

 From Thomson. 



c, Cuneiform ; h.., 

 humerus; /., 

 lunar (semilunar 

 or intermedium) ; 

 m., magnum ; r., 

 radius ; s. t sca- 

 phoid ; i., trape- 

 zoid ; w., unciform; 

 2-s, digits. 



Fig. 339.— The 

 bones of the 

 right fore - leg 

 of a calf, from 

 the outer side. 

 — From Thom- 

 son. 



k., End of humerus ; 

 mc.3.4, cannon 

 bone (fused third 

 and fourth meta- 

 carpals) ; wzc.5, 

 fifth metacarpal ; 

 «., nodule ; r. t 

 radius ; u. , ole- 

 cranon process 

 of ulna. 



Unguiculata, which are most often carnivorous in one way 

 or another. The broad distinctions between these groups 

 lie in the shape of their feet. The herbivorous ungulates 

 are comparatively defenceless and rely for their preservation 



