Less than 250 (2004). Also called Hendee's Woolly Monkey. Lives in the montane cloud forests of the Peruvian Andes. The inaccessibility of its habitat protected the species until the 1950's. However, the construction of new roads; habitat loss and fragmentation from agriculture, logging & cattle ranching; & subsistence hunting; together with the monkey's naturally low population densities, slow maturation, low reproductive rate, & a restricted geographic distribution have led to this species' current critically endangered status.