28 MAN AND APES. 



grouped into two genera. The first of these 

 Semnopithecus — of which the Entellus (or 

 Sacred Monkey of the Hindoos) may serve as 

 an example— is entirely confined to Southern 

 Asia (Fig. 7). The Semnopitheci have a small 

 thumb on each hand, and are provided with 

 ischial callosities. The arms are shorter than 

 the legs, and their progression on the ground 

 is quadrupedal. They are less active than 

 the Gibbons or most other old-world apes. 

 Gentle when young, they become morose with 

 age. 



The largest species is the singular Kahau or 

 Probosis Monkey, an ape of Borneo (Figs. 58 

 and 59, page 153) . The black-crested and Moor 

 monkeys (Figs. 8 and 9) have soft glossy fur. 



The animals of this genus are rarely seen 

 in menageries. There are numerous species 

 of a geographical distribution similar to that 

 of the long-armed apes. 



The other genus, Colobus (remarkable for the 

 absence of the thumb), is as exclusively African. 

 The Celobi are like the Semnopitheci in form 



