Cercopithecus
erythrotis
The red-eared guenon is
endangered, and found only in southeast Nigeria, southwest Cameroon known as
the Cameroon faunal region (Cercopithecus erythrotis camerounensis)and the
island of Bioko (Cercopithecus erythrotis erythrotis). Red-eared
guenons share their habitat in this small geographic area with many other
endangered mammals, including the rare subspecies of lowland gorilla, the
Cross River gorilla and the drill monkey (Mandrillus leucophaeus).
Amongst the smaller of the forest guenons, red-eared guenons
are also very quiet in the forest, with their soft trill-like contact
call. In addition to their bright brick red nose, they also have tufts of
red hair on their ears and long brick red tails. They
are a close cousin to the Sclater's guenon, and formerly Sclater's guenon
was considered a sub-species of C. erythrotis. Little is known
about their ecology and behaviour. They are frequently found in mixed
species groups with putty nose guenons. In CERCOPAN's Rhoko Core Area,
there is a resident group of red-eared guenons who are often observed with
the resident putty nose guenons.
