358 



BACKBONED ANIMALS. 



Sub-order II. Man-shaped Animals (Anthropoidea}. 

 Marmosets (Hapalida). The marmosets are confined 

 exclusively to South America, and are rarely larger than 

 large squirrels. They have long, non-prehensile tails, and 

 walk upon all-fours, the feet and hands being similar, and 

 the digits armed, with the exception of the great toes, with 

 nail-like claws. As the thumbs are not opposable, they 

 can not grasp with the facility of other monkeys. 



FlG. 378. A woolly monkey and young (Lagothryx Humboldtii}, showing 

 grasping tail. 



Weepers (Cebidce). In this large family we first meet 

 the true monkeys, the family embracing all the South 

 American forms. They are distinguished by the posses- 

 sion of more molar teeth than those that follow, having in 

 all thirty-six teeth, while the rest have only thirty-two. 

 Many also possess a long, prehensile tail of so much use 



