THE LIFE OF MAMMALS 
of insects when they lie asleep in the tree tops; and they choose 
sleeping places among the hanging moss where they are prac- 
tically invisible, in spite of their contrasted black-and-white 
coats. 
Turning now to the other group, we meet the common mon- 
keys of Africa, about forty species, many of which are familiar 
in menageries, such as the tiny talpoin, the ascagne, hocheur, 
malbrouck (French names), green monkey, patas, mona, 
and Diana of West Africa, and the East African grivet, so 
ag 
eee ee 
THE DIANA MONKEY, 
commonly depicted in the old Egyptian wall paintings. All 
are small, slender, long-limbed, and muscular, and have long 
tails and round heads usually adorned with whiskers and beards 
of formal cut. Their fur is thick and soft, and in most species 
each hair is ringed with different and often brilliant colors; 
and while the predominant hue is blackish or olive-green, 
sometimes bright, the coats of many are gayly marked with 
blue black, red, chestnut, tawny, golden green, bright yellow, 
white, or jet-black, often in quaint spots or stripes, so that they 
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