<20 



the baboons remind us more of brute animals, by their appear- 

 ance and manners. 



THE DOG-FACED BABOON, or DERRIAS. 



(Cynocephalus Hamadryas.) 



This species inhabits the mountains of Arabia and Abys- 

 sinia, and when full grown it is four feet high when standing 

 upright, and two feet and a half when sitting. Its face is very 

 long, hairless, and of a dirty flesh-colour, with a lighter ring 

 encircling the eyes. The hair of the head, neck, and fore part 

 of the body, is a mixture of light grey and ashy brown, each 

 hair being marked with several alternate rings of those colours ; 

 the hair of the hips, thighs, and extremities, is of a brown 

 colour; and there is an almost hairless patch on each side 

 of the callosities, which are large and of a dark flesh colour ; 

 the palms and soles are dark brown. 



" When these animals arrive at their full growth and mature 



