THE HOWLERS. 205 



Baron Cuvier has done, instead ofAteles, and of follow, 

 ing them by that genus, and Cebus of Xerleben. 



THE HOWLERS 



contain a single genus, named by Illiger Mycetes* 

 from the remarkable howling voice of the animals. It 

 is characterised by a facial angle of about 30 ; the 

 tail very long, naked at the extremity, and prehensile. 

 ' The dentition, according to Frederic Cuvier, is nearly 

 similar in this and the two next genera ; and we add 

 the delineation which he considers typical of these 



forms. But the prominent character hi this group is 

 the extraordinary developement of the larynx, which is 

 ventricose, and appears on the outside in the form of 



MVXHTM howling. 



