60 MAN AND APES. 



brought alive to Europe. They have the 

 front teeth of the lower jaw (lower incisors) 

 much inclined instead of standing up vertically, 

 as in the other apes and in man. 



The little Squirrel Monkey (Chrysotlirix) — 

 Frontispiece, Fig. 3 — is a singularly attractive 

 and beautiful little animal. Two allied genera 

 are called respectively Callitkrix and Nycti- 

 pithecus. 



These three genera constitute the sub-family 

 Nyctipithecince. None of them have prehensile 

 tails. The typical form Nyctipithecus, or the 

 Douroucouli, is nocturnal in its habits. 



The Squirrel Monkey, or Saimiri, appears 

 to eat insects more readily and greedily than 

 vegetable food. 



The last sub-family of American monkeys 

 comprises the delicate little Marmosets (Fig. 

 30), or Ouistitis (Hapale), which differ notably 

 from all the other apes, whether of the Old 

 or New World ; so that some authors have 

 purposed to raise them to the rank of a distinct 

 family. 



