66 FIELD MUSEUM OF NATURAL HISTORY - ZOOLOGY, VOL. X. 



to move immediately but stood facing us from the top of a mangrove, 

 his rich color glowing in the full glare of the sun. In ascending the 

 Catatumbo River to Encontrados by steamer, we saw some forty or fifty 

 howlers from the deck of the boat. They were in parties of five or 

 six nearly always including several half grown young. 

 Local name Araguato. 



Cebus apella leucocephalus Gray. Brown-faced Capuchin. 



A small troop of monkeys apparently of this species was seen clam- 

 bering through the tops of some thinly foliaged trees near El Panorama, 

 Rio Aurare. Several captive animals were seen at various times in 

 Maracaibo. 



