.-•-- 



V EBTEBRATA. 



. 





.i 



lilt C'OSsAC'K. IlUliSE. 



THE CAUT-UORSE. 



TOE AUAB1A.N. 



ORDER 10. SOLIDUNGULA. 



This order contains but a single family, the Equities, of which the horse is the type. 



THE EQUID^E. 



Tlii> family embraces tin- If<>r . .1 . I>r.<-fi<i>ntfi> <>r If< m'mnc, the Zchra, Quagga, and Onager 

 or Dauw. Th i all originally natives of the Eastern Continent; all are naturally herbivo- 



-. and live together in large herds, defending themselves when attacked by kicking with their 

 heels. Two of the species, the Borse and Ass, have been domesticate*! l>y man; the rest con- 

 tinue in a wild Btatc. In their Btmcture they are characterized by six incisors to each jaw, 

 which, during youth, have their crowns furrowed with a groove, and six molars on each side above 

 . with square crowns, marked by laminae of enamel which penetrate them, with four 

 le which there is a small disk on the inner border of those above. The males have 

 a two mall canines in their upper jaw, and sometimes in both, which are always want- 

 Between these canines and the firsl molar there is a wide space which cor- 

 ith the angle of the Lips where the bit is placed, by which alone man has been enabled 



