Stephen Nash's titi monkey

Stephen Nash's titi monkey (Plecturocebus stephennashi), also called Nash's titi or Stephen Nash's monkey, is a species of titi monkey, a type of New World monkey, endemic to the eastern bank of the Purus River in Brazil. Marc van Roosmalen discovered it in 2001 when local fishermen brought specimens to his breeding center, and it was described in 2002. It was named in honor of Stephen D. Nash, an illustrator for Conservation International, the organization that funded van Roosmalen's work. The monkey is largely silver, with a black forehead, red sideburns and chest, and red on the underside of its limbs. It is about 28 inches long, although 17 inches of that length is taken up by the tail. Like the other titis it belongs to the family Pitheciidae of New World monkeys, and the genus Plecturocebus, one of three genera of titis, groups it with the moloch species of the Amazon.