in forests that are more mesophytic. It is also found in flooded forests. The white-fronted capuchin survives well in forests growing over white sand and in forests of "high caatinga" growing in the rocks and gravel at the foot of mesas. In Colombia, white-fronted capuchins are found from the northern slopes of the Sierra de Santa Marta to the south, in the valley of the Magdalena River to an as yet undefined point in the Department of Tolima and in the valley of the lower Cauca River, to the eastern parts of central Antioquia and the southern parts of Sucre to the west. In Guajira the species is found to Riohacha, and an isolated population is apparently found in the Serranía de Macuira, though this needs confirmation. They are also found along the slopes of the Serranía de Perijá and the Cordillera Oriental. To the east of the Cordillera they are found in Norte de Santander, western Arauca, in eastern Vichada between the Meta and Tuparro rivers, and then south of the Vichada River; although east of the Ariari River, not including the Ariari itself. It is not known whether they are found in the rather extensive forests of the upper Manacasías River in Meta. South of the Guayabero and Guaviare River, white-fronted capuchins are found throughout the Amazon. The species is known to an altitude of in the Department of Tolima. Outside of Colombia, white-fronted capuchins are found from the Andes throughout eastern Ecuador, Peru and northern Bolivia to the Tapajós river in Brazil, south of the Amazon River. North of the Amazon River they are found in the southern parts of the Venezuelan Federal State of Amazonas and in northern Brazil between Colombia and the Branco River. There are isolated populations of the Ecuadorian white-fronted capuchin (C. aequatorialis) in the Pacific Equatorial Forest, with at least three troops present in the premontane cloud forest and moist transitional forest of the Jama-Coaque Reserve (Reserva Jama-Coaque) along the coastal equatorial mountain range in the province of Manabi, Ecuador. Humboldt's white-fronted capuchin, Cebus albifrons, is very common in the eastern half of El Tuparro National Park, Colombia. It is less common in Amacayacu National Park. Cebus a. yuracus is known south of the Putumayo River. Cebus versicolor is widespread on the middle-Magdalena River and is observable in preserved woodlots of protected fincas. Cebus malitiosus is easy to observe in Tayrona National