668 THE POPULAR SCIENCE MONTHLY. 



with the forehead, does not offer that bold prominence which is near- 

 ly always a token of ferocity. The brain-case is large and well de- 

 veloped posteriorly, and the temporal ridge, i. e., the bony prominence 

 to which are attached the principal muscles of the under jaw, is 

 smaller than in the Semnopltheci. The eye-sockets are round, the 

 cheek-bones prominent, and the nasal region, instead of being in a 

 right line with the forehead, as in the mitred monkey and the great 

 monkey of Cochin-China, is deeply depressed, giving to the face a 

 very peculiar expression. The bones of the nose are reduced to an 

 extreme degree, and tlie openings of the nostrils, especially in the 

 adult, are very large. 



The teeth are remarkable for their development, and in the male 

 the canines are long and sharp. 



Alphonse Milne-Edwards has published, in his work on the "Natu- 

 ral History of the Mammalia," a detailed description of this monkey, 

 accompanied by a colored plate, from which our engraving is copied. 

 Unfortunately, the engraving cannot give any idea of the coloration 

 of the animal, and hence we must briefly describe it in words. 



The Moupin monkey is of considerable size, the adult male measur- 

 ing one metre and forty centimetres from the extremity of the muzzle 

 to the extremity of the tail. The face is short, turquoise-green in col- 

 or; the eyes are large, with nut-brown iris ; the nose is turned up at 

 the point. It is to this latter peculiarity, which becomes all the more 

 striking as the animal grows older, that the Moupin monkey is in- 

 debted for its generic name Hhinopithecus. 



The skin around the eyes is greenish, and the nose and muzzle 

 almost naked. But the cheek-bones, the jaws, and the superciliary 

 arches, are covered with thick hair. On the forehead, this hair, which 

 is of a bright reddish-yellow color, is mixed with darker hairs tipped 

 with black. The upper part of the head is covered with grayish-black 

 hair, mixed with rust-color ; it forms a sort of skull-cap, and is direct- 

 ed toward the back of the head. 



The nape of the neck and the shoulders are of the same color as 

 the crown of the head, but the back, and especially the posteiior por- 

 tion of the trunk, is, of a more lively and brilliant hue, owing to the 

 presence of numerous yellowish-gray hairs, with reflex of silver. In 

 old individuals the hairs attain the length of ten centimetres (near- 

 ly four inches). On the outside of the arms similar hairs are to be 

 seen, though of duller hue, and on the front of the thighs and legs 

 there is a stripe of iron-gray. But the hinder and outside aspect of 

 the tldghs is of a very light yellow, and the inner surfaces of the 

 thighs and legs rust-colored, changing to reddish on the upper side of 

 the feet. 



The hair of the anterior hands is gray. The tail is thick and tuft- 

 ed, dark gray at the root and whity gray at the tip. 



The female is distinguished from the male by certain differences 



