8 



ed in the East Indies by sixteen very distinct species ; 

 many of the most prominent are here seen, and are so 

 named from a fancied sleepy or venerable aspect. They 

 are aLso called tailed apes, from the fact that their tails 

 contrast strongly with those of many of the dog-faced 

 monkeys, which comprise the next group, and whose tails 

 are quite rudimentary. 



The Proboscis Monkey (Nasalis larvatus Geoff.) is 

 found in Borneo, and is the only species known to have 

 such a nasal appendage. The specimen here exhibited is an 

 adult, and an excellent example. A young one of the 

 same shows the early stages of the nasal development. 



The genus Colobus embraces six species. Black or black 

 and white are characteristic of the hair of these monkeys; 

 they are all African. 



The GlJEREZA (Guereza rnppelli Gray) is somewhat 

 larger, yet having the black and white markings. It in- 

 habits Western Africa. 



GROUP 3. — The Dog-faced Monkeys form several 

 genera in which twenty-six species are embraced. 



The little Moustache Monkey {Cercopithccus eefhus 

 Erxl.) is an interesting one. There are several very pretty 

 gray-coated species, with a curious white spot on the nose ; 

 for example the WHITE CHEEKED HoCHEUR {Cercopi- 

 thecus petaurista). Several of this group have white crests 

 or patches of white hairs over the head, and surrounding 

 the neck in various ways. The DlANA MONKEV (Cercopi- 

 thecus diana Erxl.) is a notable one; so named from the 

 crescent-shaped white patch on the head, which suggests 

 the frontal ornament of the goddess. The Diadem Mox- 

 KEY is another, having distinguishing marks also in white, 

 shaped to simulate a diadem. 



The Collared Mangaby {Cercocebus collaris Gray) 

 is an example of several of this genus. The term mangaby, 

 like many others, is a local African one. 



The MACAQUES are pretty uniformly alike in character- 

 ises as distinguished from the preceding, most of them 

 have very short tails. They are all African 



