64 



MAMMALS OF TlIK PACIFIC AVOULD 



,,v.'-^^ 



Fig. !2G — Orang-utan 



lands and aloii^ rivers. 

 Tlu\v are calloti "iiiias" 

 by tlio Dyaks of Borneo 

 and '"niawas" by the 

 Malays. 



The Gibbons. 



Family 

 IIylobatid^ 



The gibbons arc the 

 smallest of the anthro- 

 poid apes. Like all the 

 primates of this group 

 they are tailless. They 

 have extremely long 

 arms by which they 

 travel, swinging tliem- 

 selves from limb to limb 

 through the forest. 

 They are noted for their 

 powerful voices, char- 

 acteristic sounds in the 

 country which they in- 

 habit. 



The Siamang {Hylo- 

 haics si/inhicti/Ius), the 

 largest of the gibbons, 

 is found in the ^lalay 

 States and Sumatra. 

 An adult standing up- 

 right measures over 

 three feet in height. 

 The hair is long and 

 black. The hair on the 

 siamang's forearm dif- 



