120 Mammals of Eastern Asia 
the Gorillas, Chimpanzees, and Orang-utans, prefer the warm 
tropics (the Mountain Gorilla lives fairly high on the mountains 
of central Africa). Man himself seems to have originated in the 
tropics and perhaps only entered the colder regions after learn- 
ing to wear skins. 
THE LEMURS (SUBORDER LEMUROIDEA) 
This large group of primitive Primates, though found chiefly 
today in Africa and Madagascar, is represented in the Indo- 
Malay region by three genera, the Slender Lorises, the Slow 
Lorises, and the Tarsiers. The Lorises and the Tarsiers belong 
to distinct families. The Tarsiers, placed by some authorities 
with the monkey-like Primates instead of as usual with the 
Lemurs, are known nowhere on the continental mainland but 
are represented on the Sunda Islands and the Philippines by 
several forms. 
THE LORISES (FAMILY LORISID^) 
This family includes the short-tailed Slow Lorises of Ceylon 
and India, the Slender Lorises of southeastern Asia, and the 
Pottos of Africa, members of the subfamily Lorisinae; it also 
includes the long-tailed Bush-babies or Galagos, all African, of 
the subfamily Galaginse. The Slender Lorises, genus Loris, are 
confined to Ceylon and India. Only the Slow Lorises are found 
in eastern Asia. 
The Slow Lorises, Nycticebus coucang, are round-headed, 
virtually tailless Lemurs with the eyes large and placed close 
together, the ears so small as to be buried in the fur, the limbs 
short and the hands and feet adapted for grasping. Their move- 
ments are extremely slow and deliberate. The color, though 
variable, is generally silvery gray with a buffy wash. Dark 
