206 



SKETCH OF THE HISTORY OF AIAMMALIA. 



elongated and the limbs short. It is neither protected 

 by plates nor scales, but the skin is thick, tough, and 

 coarse, and covered with stiff hair, resembling bristles in 

 quality, and somewhat scantily disposed, especially on 

 the head. The muzzle is elongated, narrow, and hog- 



137-139.— Teeth of Aard-vark. 



