DOG-FACED BABOONS 



57 



whose range extends right across the continent from the west to the east coast, 

 is a large species with a crest of long hair on the back of the neck and an 

 incipient mane on the fore-quarters. The general tone of colour is dark yellowish 

 olive speckled with black, the individual hairs being ringed with different colours. 

 The face and ears are dusky. One of the eastern races of this species is P. a. 

 neumanni, characterised by certain peculiarities in the skull ; and P. a. doguera, 

 of which the geographical range extends from Abyssinia to the Congo, represents a 

 second local form. On the other hand, a baboon from eastern Africa, to which 



HAMADRYAD BABOON. 



the name P. lydekkeri has been given, may be entitled to rank as a distinct species. 

 The thoth baboon (P. thoth, or P. cynocephalus) of Abyssinia and East Africa is 

 a lighter coloured species than the last, without a distinct crest on the neck or 

 mane on the fore-quarters, and with the face and ears dirty flesh-coloured. Very 

 different is the Guinea baboon (P. sphinx) of West Africa, which is much smaller 

 and redder, with a slaty face and large ear-tufts. In South Africa the group is 

 represented by the chacma (P. porcarius), a very large dark-coloured species, 

 with the cheek-tufts, nape, and some other parts of the body almost black, and the 

 hairs uniformly coloured throughout their length; it is represented by a local race 

 in the Transvaal. 



