THE MACAQUES 105 



tumbling, dancing, and a hundred other amusing tricks. He was very fond of 

 being caressed, and would examine the hands of his friends with great gentleness 

 and gravity, trying to pick out the little hairs, and all the while expressing his 

 satisfaction by smacking his lips, and uttering a low surprised grunt. ' ' 



The white-collared mangabey ( C. collaris) may be easily distinguished from the 

 sooty mangabey by its blackish-gray color, the white round the neck, and the bay 

 on the crown of the head ; the white of the collar extending to the cheeks throat, 

 and chest. 



The third representative of this group is the white-crowned mangabey, which 

 takes its name from a characteristic white spot on the crown, and is also dis- 

 tinguished by a white streak running down the middle of the back. 



THE GRAY-CHEEKED MANGABEY (Cercocebus albigena) 



The circumstance that the hair of the crown of the head is lengthened so as 

 to form a distinct crest affords a ready means of distinguishing the gray-cheeked 

 mangabey from its three congeners. The general color of this monkey is blackish, 

 but its name comes from the grayish hairs on the sides of the throat and cheeks. 

 It was first made known to science in 1850 by the late Dr. Gray, from specimens 

 sent home from the West Coast of Africa by Du Chaillu, previously to his great 

 expedition of 1855. 



THE MACAQUES 

 Genus Macacus 



After having devoted so much space to the monkeys of Africa, we turn to 

 those Asiatic species known as Macaques, of which a group is represented in our 

 colored plate. 



We have already seen the curious origin of the term mangabey, applied to 

 the group of African monkeys last mentioned, and it appears, from what we have 

 to say immediately, that there is a kind of fatality in regard to the misapplication 

 of names among monkeys. So far as can be learned, the name Macac or Macaque 

 seems to be a barbarous word which, in Margrave's Natural History of Brazil, 

 published in the year 1648, is given as the native name of a monkey from the 

 Congo and Guinea. Buffon, however, with a facility for misappropriation for 

 which he was rather celebrated, transferred this name to the Indian group, forming 

 this part of our subject, and to them it has ever afterwards clung, having been 

 Latinized into Macacus. In spite of its origin, the name is good enough, and so 

 must remain. 



Under the heading of the mangabeys we have seen how these monkeys differ 

 from their cousins the guenons in having a heel, and thus five cusps, to their last 

 lower molar teeth, and also in the uniform coloration of their individual hairs. 

 As this is also the case in the macaques, it is obvious that in this respect the 



