Tin: ORANG. 



gorilla. The gibbons are nearesl to the monkeys; the; 

 little less than a metre (3 feet) in height, and : 

 slender, with ver) long arms, so that they are rapid, :* t_r i 1 * - 

 climbers, also running over the ground with and 



rapidity; when standing erccl Hie fingers touch the ground; 

 only the thumbs and. greal toes have true nails, in all the 

 higher apes the nails of all the digits being flattened; the 

 spinal column is nearly straight; they have fourteen pairs 

 of ribs ami eighteen dorso-lumbar vertebrae, there being in 

 the other apes usually seventeen, as in man. The siamang 

 lives in the forests of Sumatra; others inhabil Java, Borneo, 

 Oambogia, etc. 



The orang-outang inhabits the low swampy foi 

 Sumatra and Borneo, being confined to those two islands: 



1 38 tin i : ' - : i t i high; ii has twelve |>aii 



ribs, the same number as in man: the arms are ven 

 Btretching 1 feel 9 inches, and reaching the ground, so that 

 in walking they rest <m their knueki s, swinging the body 

 through their long arms as if walking on crutches; their 

 posture is only partially erect The forehead is less strongly 

 marked than in the other apes, showing better the shape 

 of the skull. The volume of the brain, hoth of the orang 

 and chimpan . is about twenty-six or twenty-seven cubic 

 inches. The following table will show, according to 

 Wyman, the relative capacity of the skull in the different 

 ape- as compared with man: 



The average capacity of t lie < Caucasian skull is 9 1 92 cubic in. 



* Wallace Bays that tlie orang of Borneo never \ eds 4 foot 

 2 inches in height Its native name is Mias. ("TheMalaj Archi- 

 pelago.") 



