xc INTRODUCTION 



Brachyteleus. 

 Range of the Genus. 

 Neotropical Region. 

 Range of the Species. 



232. Brachyteleus arachnoides. Cape St. Roque to Rio de Janeiro, 



Brazil. 



Lagothrix. 

 Range of the Genus. 

 Neotropical Region. 

 Range of the Species. 



233. Lagothrix lagotricha. District in Upper Magdalena Valley 



southwest of the Rio Negro, Colombia; also in Peru. 



234. Lagothrix lugens. Mountains north of Tolima, Colombia. 



235. Lagothrix thomasi. Peru. 



236. Lagothrix ubericola. Upper Amazon, Rio Jurua, and Rio 



Solimoens, Peru. 



237. Lagothrix infumata. Valley of the Rio Cotopaza, Ecuador. 



238. Lagothrix cana. Mouth of the Rio Tocantins, to the forests 



along the Rio Solimoens. 



Cebus. 

 Range of the Genus. 

 Neotropical Region. 

 Range of the Species. 



239. Cebus apella. English, French, and Dutch Guianas. 



240. Cebus capucinus. Nicaragua, Central America, to Colombia, 



South America. 

 24L Cebus c. nigripectus. Cauca Valley, Colombia. 



242. Cebus frontatus. Province of Sao Paulo, Brazil. 



243. Cebus albifrons. Forests of the Orinoco and Amazon and its 



tributaries ; Province of Minas, Peru. 



244. Cebus unicolor. Forests of the Rio Teffe, Brazil. 



