566 ; BABOONS CHAP. 
Society’s Gardens a year or two back: the young was observed to 
take both teats of the mother into its mouth at once. Mr. Sclater! 
in a recent list of the group allows forty-seven species, of which 
thirty-three were examined by himself. Subsequently, however, 
the list has been reduced to forty by the same authority. One 
of the rarest species is C. stairsi, first described from a skin 
stripped from a specimen which lived for a short time at the 
Zoological Gardens. 
The genus Cynocephalus (or Papio) includes the Baboons ; and 
the scientific name indicates the Dog-hke aspect of these animals, 
due to the projecting snout. Cynocephalus is confined to 
Africa and Arabia. Several of the species of the genus are well 
known. The Mandrill, C. mormon (or maimon), has blue ridges 
on the muzzle, the bridge of the nose being red. The animal 
lives in herds, and is ferocious and omnivorous. The Chacma 
Baboon, C. porcarius, is the largest of Baboons. It hves in South 
Africa in large herds. The Arabian Baboon, C. hamadryas, is 
the Sacred Baboon of the Egyptians. The names of two other. 
species, C. thoth and C. anubis, serve also to remind us of the 
ancient Egyptians. There are altogether eleven species of 
Cynocephalus. ; 
Gelada (or Theropithecus) is. separated as a distinct genus. 
Though regarded as a Baboon, Garrod has pointed out many 
points of likeness to Cercopithecus.2, The two species are, like 
the other Baboons, African. : 
Cynopithecus niger is a small black Baboon from Celebes. It 
has swellings on the muzzle as in other Baboons, but differs from 
them in being a more amiable creature as well as in its smaller 
size. It has a rudimentary tail, smaller even than the small tail 
of the typical Baboons. It has, like them, ischial callosities. 
In the second sub-family, Semnopithecinae, the following 
characters are distinctive :—All the Apes of this group are slender 
in form, with a long tail. There are no cheek pouches. The 
stomach is sacculated ; it is divided into three portions. This is 
accompanied by an apparently more exclusively vegetarian diet 
than characterises other Apes, which mingle with their diet of 
fruit a large proportion of insects, eggs, ete. 
1 «On a new African Monkey of the genus Cercopithecus, with a List of the 
known Species,” Proc. Zool. Soc. 1893, p. 243; see also p, 441. 
2 Proc. Zool. Soc. 1879, p. 451. 
