The Tana River mangabey is a medium-sized primate with a long semiprehensile tail, a yellow-brown coat, and a center part on the crown of the head with long, dark fur. The species has white eyelids that contrast to its darker face like other Cercocebus species.

The Tana River mangabey (Cercocebus galeritus), also known as the Tana River crested mangabey, is endemic to a small stretch of floodplain forests along the Tana River in Kenya. They occupy about 27 small (under 1,200 acre/5 km²) forests, many of which are fragmented, both naturally and anthropogenically (from man made activities and events).

The Tana River mangabey (Cercocebus galeritus) is a highly endangered species of primate in the family Cercopithecidae. Some authorities have included the taxa agilis and sanjei as subspecies of this species, while others award these full species status.

…forest of Tanzania; and the Tana River mangabey (C. galeritus), a small species that has long crown hair diverging from a part and is found only in forests along the lower Tana River in Kenya. The Tana River mangabey, which numbers only 100–1,000 and is in danger of extinction, lives…

Tana river mangabeys are largely ter­res­trial and live in flood­plain forests along the lower Tana river. These forests are de­pen­dent on the height of the ground­wa­ter table and the Tana river's processes of flood­ing, ero­sion, and nu­tri­ent recharge.

Cercocebus galeritus is endemic to a stretch of flood-plain forests along the lower Tana River, northern coastal Kenya, from Nkanjonja in the north to Hewani in the south, with an altitudinal range of 20–40 m asl. This species lives in about 27 distinct, small (1–500 ha) forests, some of which are isolated.

Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people.

Tana River Mangabeys are medium-sized monkeys with long, light gray hair covering most of their bodies. Tana River Mangabeys are highly social animals, living in multi-female social groups averaging 27 individuals in size.

The Tana River mangabey (Cercocebus galeritus) is a highly endangered species of primate in the family Cercopithecidae. Some authorities have included the taxa agilis and sanjei as subspecies of this species, while others award these full species status.

The Tana River mangabey (Cercocebus galeritus) is a highly endangered species of primate in the family Cercopithecidae. Some authorities have included the taxa agilis and sanjei as subspecies of this species, while others award these full species status.