Rio Acarí marmoset

The Rio Acarí marmoset (Mico acariensis) is a species of marmoset endemic to Brazil. It was first described in 2000, which makes it one of the more recently recognised New World primates. It belongs to the genus Mico in the family Callitrichidae, a group of small, claw-bearing monkeys of the Amazon basin whose members are separated largely by coat colour and by the rivers that bound their ranges. The Wikipedia article on the species is a short stub that records only its endemism to Brazil and the date of its description, so this entry rests on that account and on the placement of the species within Mico.