ANTHROPOMORPHID^ OR SIM11D&. 



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branches. They are exclusively vegetarian. As regards the structure 

 of the brain, the Orangs are most like man. 



The Gorillas (Gorilla] live in Western Equatorial Africa. They are 

 larger than all other apes, and larger than man, though not over 5^ ft. 

 in height. The arms reach to the middle of the lower leg, and the 

 animals walk with the backs of their closed hands and the flat soles of 

 their feet on the ground. There are prominent supra-orbital ridges. 

 The canines of the males are very large. The cervical vertebrce bear 

 very high neural spines, on which are inserted the muscles which 

 support the heavy skull. There are thirteen ribs, and seventeen 



/ 



FIG. 376. Skull of Gorilla. From Edinburgh Museum 

 of Science and Art. 



dorso-lumbar vertebrae. There is no os centrale in the carpus. They 

 live in families in the forest, and feed on fruits. As regards size, the 

 gorillas are most like man. The males are much larger than the 

 females. 



The Chimpanzees (Antkropopithecus) live in Western and Central 

 Equatorial Africa. They do not exceed a height of 5 ft. The arms 

 reach a little below the knee. They walk on the backs of their 

 closed hands and on their soles or closed toes. The skull has no high 

 crests. The supra-orbital ridges are distinct. The canines are smaller 

 than in Gorilla or Orang. There is no centrale in the carpus. There 

 are vocal sacs. The chimpanzees live in families in the forest, and 



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