356 ELEMENTARY ZOOLOGY. 



monkeys of dog- or cat-like form, and stand intermediate 

 between the true monkeys and the lower mammals. 



2. The New World monkeys are of the broad-nosed 

 variety and are distinctly lower than the next division. 

 They are smaller and have long prehensile tails. They 

 live in trees and include the marmosets or squirrel mon- 

 keys, the howling monkeys, and the spider monkeys. 



3. The narrow-nosed dog-like apes of the Old World, 

 which are quadrupeds, with fore and hind limbs about 

 equal. They have tails and include the baboon, the 

 mandrill, and the macaques. 



4. The man-like apes of the Old World, which are 

 tailless, stand more or less upright, and use the fore limbs 

 as hands. These are the gibbons, orang-outang, the 

 gorilla, and the chimpanzee. The gorilla is most like 

 man in body, and the chimpanzee in intelligence. These 

 four types of man-like apes live in southern Asia or in 

 Africa. 



5. Man (genus Homo) is more erect, but agrees in 

 fundamental structure w r ith the animals mentioned in 

 four. He is now found over the habitable world ; but the 

 evidence seems to indicate that he originated in tropical 

 or subtropical portions of the Old World, as did the higher 

 apes. He is the only animal which writes zoologies. 



353. Practical Exercise. To whatgroups of mammals do the fol- 

 lowing animals belong: hairy ant-eater of South America; the 

 manatee; the grampus; llama; the moose; the bison; guinea-pig; 

 flying squirrel; tapir; lynx; the flying fox? 



354. Key to the Principal Orders of Mammals. 

 Lay large eggs ; no teats ; merely a milk surface, 



Sub-class Monotremata. 

 Examples : Duckbill, spiny ant-eater. 

 Bring forth young alive. 



Young prematurely born and placed in pouch, 



Sub-class Marsupialia. 



