PACHYDERMATA I EQUIDJE. 49 



The Genus Sus Hogs has the muzzle terminated 

 by a sort of button suited for turning up the ground. 



The Wild Boar, 5. scropha, Linn., is the parent stock 

 of all the domestic varieties. It is indigenous to Europe, 

 Asia, and Africa. 



The Babiroussa, S. babiroussa, Buff., of the Indian Ar- 

 chipelago, is of a lighter build, and is characterized by its 

 long slender tusks, the under ones turned vertically up- 

 wards, and the upper ones inclining spirally backwards. 



The Genus Dicotyles^ Peccaries differs from the 

 preceding genera in its canines, which are directed like 

 those of animals in general, the hind feet three-toed, 

 the tail rudimentary, and there is a peculiar gland upon 

 the loins. Peccaries inhabit the warmer regions of 

 America. 



HlPPOPOTAMID^E, OR HIPPOPOTAMUS FAMILY. This 



Family is represented by the single Genus Hippopotamus, 

 and by the single living species H. amphibius, Linn., 

 which inhabits the Nile and some other rivers of Africa. 

 The Hippopotamus is an animal that is wholly unique. 

 Its body is massive, legs short, feet four-toed, each toe 

 being hoofed, its head very large, its muzzle enormous, 

 its eyes and ears small, and tail short. Its body is as 

 large as that of an ox. 



EQUID.E, OR HORSE FAMILY. This Family, called 

 Solepedes by Cuvier, comprises animals which have only 

 one apparent toe and a single hoof to each foot ; although 

 under the skin, on each side of their metatarsus and me- 

 tacarpus, there are spurs representing two lateral toes. 

 The Genus Equus comprises all the species. 



The Horse, E. caballus, Linn., is indigenous to the Old 

 World, but has accompanied man, and become estab- 

 lished in every quarter of the globe. This noble animal 

 is the most beautiful, graceful, and the most useful to 

 man of all the Pachyderms. The Horse no longer exists 



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