White-eared titi White-eared titi The white-eared titi, Plecturocebus donacophilus, also known as the Bolivian titi or Bolivian gray titi, is a species of titi, a type of New World monkey, from eastern Bolivia and an area of western Brazil. The species has a range that extends east from the Manique River in Beni Department, Bolivia to southern Rondônia in Brazil. The southern end of its range includes forests around the city of Santa Cruz de la Sierra. It is a medium-sized monkey with a grey back, orange underside and distinctive white ear tufts. It has an omnivorous diet, eating fruits, other plant
Caquetá titi titi and white-tailed titi except that it does not have a white forehead bar, nor does it have the white hands and feet of the ornate titi. It also has a red beard. It has 22 chromosome pairs (not counting the sex chromosomes), with a diploid chromosome number of 2n=46. In the paper describing the species, the authors recommend that the species be classified as critically endangered by the International Union for Conservation of Nature (IUCN). According to the authors' estimate, the population size of the species may be fewer than 250 adult animals. It lives in forests fragmented by