THE HOWLERS. 2C7 



annexed cut, from Humboldt, will show the ftrrn of 

 the drum of the os hyoides. 



The howlers are also the largest of the American 

 monkeys ; in their disposition, and fierce manners, 

 and decimation of the facial angle, they may be said 

 to represent the Baboons of the Old World, while, in 

 the nightly howlings and gregarious habits, they bear 

 some analogy to the Gibbons. The form of this genus 

 will be seen in 



