Alta Floresta titi

The Alta Floresta titi ("Plecturocebus grovesi") is a species of titi, a type of New World monkey, endemic to Brazil. It was described from the municipality of Alta Floresta in the state of Mato Grosso.
It is a member of the Eastern Amazonian clade of the red-bellied titi ("P. moloch") group, and is the sister taxon to the clade containing the red-bellied titi and Vieira's titi ("P. vieirai"). It can be distinguished from other species in the "P. moloch" group by the combination of its agouti dorsal parts, the bright red-brown venter, the entirely black tail with a white tip, and the light yellow fur on the cheeks.
This species is projected to lose up to 86% of its forest habitat under a typical deforestation rate, and thus likely qualifies to be classified as Critically Endangered under the IUCN Red List.