TUB DOUEOUCOULI. 229 



strong alliance with many of the Lemuridce, and some 

 of the sloth-like animals. The anatomy and skeleton 

 have not been sufficiently examined, and specimens 

 will be desiderata with every naturalist who is in- 

 terested in the History of the Mammalise. 



The next form among the American monkeys is 

 the Pithecia of Geoffrey, which are also nocturnal in 

 their habits, and have received the appellation of 

 " night apes," and also of " fox-tailed apes," from 

 the bushy tail. They may be characterised by a facial 

 angle of 60. Head round ; muzzle short ; canine 

 teeth longer than the others; the 'ail not pre- 

 hensile, shorter than the body ar\l bushy ; the nails 

 short and bent ; gregariras ; nocturnal. The first 

 we shall describe is 



