578 RANGE OF CHIMPANZEES CHAP. 
sently. The pigmentation of the body is not always so pro- 
nounced as in the Gorilla. The nasal bones are shorter. The 
skull as a whole is more brachycephalic, and the molar teeth are 
smaller. The hands and feet are much longer, the animal being 
more purely arboreal than the Gorilla. The female Chimpanzee is 
shghtly smaller than the male, but the great disparity observable 
in the Gorilla does not characterise its ally. The animal, like 
the Gorilla, has large air sacs. 
Chimpanzees are entirely restricted to Africa, and though 
Fig. 276.—Skull of Chimpanzee. Anthropopithecus troglodytes. x 4. 
(After de Blainville. ) 
they appear to extend rather farther east than the Gorilla, the 
forest-clad region of the equatorial belt is their home. 
It has been mentioned in treating of the Gorilla that the 
main feature of this animal, which affords a constant difference 
from the Chimpanzee, is its gloomy and ferocious manner. The 
Chimpanzee, on the other hand, is lively and playful, though 
often maliciously so, and quite tameable, as many instances— 
particularly the notorious “Sally” of the Zoological Gardens— 
show. The earliest mention of animals that are probably Chim- 
panzees is to be found in a work upon the Kingdom of Congo, 
published in 1598. In a cut illustrating that work, and of 
