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<p><span><em>Aotus miconax</em> is endemic to Peru and remains one of the least studied of all Neotropical primate taxa.  It has an altitudinally restricted distribution and is limited to areas of premontane and montane cloud forest in the countries north.  Deforestation in the area is the highest in the country.  In many areas deforestation has fragmented remnant populations of <em>A. miconax </em>to isolated forest fragments with high hunting pressure.  Our aim was to gather information on the current distribution of <em>A. miconax </em>and other <em>Aotus</em> species in northeastern Peru.  Through field surveys we found evidence of the presence of <em>Aotus</em> spp. at 44 localities in the departments of Amazonas, Huánuco, La Libertad and San Martin, including 23 visual observations and four aural detections and from secondary evidence at a further 17 sites.  <em>Aotus miconax</em> was found at sites between 1200–3100 m.  Combining GIS and maximum entropy ecological niche modelling we predicted the probable original distribution of <em>A. miconax.</em>  We also evaluated the current area of occupancy, level of fragmentation and anthropogenic threats faced by this species.  The current area of occupancy of <em>A. miconax</em> is much reduced and anthropogenic threats to this species are severe and increasing.  The current IUCN Red List status (VU) underestimates actual habitat loss and disturbance.  Sympatric species which suffer from similar levels of hunting and habitat loss are considered ‘Critically Endangered’ (IUCN 2011) and based on our estimate of ~60% habitat loss, with much of the remaining habitat highly fragmented; we would like to suggest that <em>A. miconax</em> be classified as Endangered.</span></p><div><span><br /></span></div>