Scientists on an expedition backed by WWF-Brazil to one of the last unexplored areas in the Brazilian Midwest have discovered a new species of monkey.

The monkey belonging to the Callicebus genus was found in the northwest of Mato Grosso State and is one of the great results from the studies undertaken during an expedition in December 2010 to the Guariba-Roosevelt Extractive Reserve.

The primate specimen was found in an area between the courses of the Guariba River and the Roosevelt River​, two of the most important water courses in the north-western part of Mato Grosso state.

Dalponte noted “This primate has features on its head and tail that have never been observed before in other titi monkey species found in the same area”.

The animal will be the object of studies designed to provide a detailed description of its characteristics to mammalian zoology experts and primatologists worldwide.

The study of the species will take about six months to conclude. The process of publishing the discovery in specialised scientific journals can take up to one year from the time the papers are submitted till the time they are approved for publication by the editing committees of scientific journals and reviews.