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The Raffles' banded langur (Presbytis femoralis), also known as the banded leaf monkey or banded surili, is a species of primate in the family Cercopithecidae. It is endemic to Singapore and southern Peninsular Malaysia. [2] The species underwent taxonomic revisions in 2019 and 2020, in which two former subspecies were elevated to separate species.
The maroon langur, maroon leaf monkey, or red leaf monkey (Presbytis rubicunda) is a member of the family Cercopithecidae. It is found on the southeast Asian island of Borneo and the nearby smaller Karimata. P. rubicunda mostly live in forests at altitudes below 2,000 m. They feed on leaves, seeds, and fruits. [2]
The Sarawak surili, [1] Bornean banded langur, [2] or cross-marked langur [3] (Presbytis chrysomelas) is a species of primate in the family Cercopithecidae.It is endemic to the southeast Asian island of Borneo, [1] [2] where it is distributed north of the Kapuas River in Kalimantan, Indonesia, the Malaysia states of Sarawak and Sabah, and in Brunei.
The East Sumatran banded langur (Presbytis percura), also known as the East Sumatran banded surili, is a species of monkey in the family Cercopithecidae. It was formerly considered a subspecies of the Raffles' banded langur Presbytis femoralis , but genetic analysis revealed it to be a separate species.
Presbytis is a genus of Old World monkeys also known as langurs, leaf monkeys, or surilis. Members of the genus live in the Thai-Malay Peninsula , on Sumatra , Borneo , Java and smaller nearby islands.
Robinson's banded langur (Presbytis robinsoni), also known as Robinson's banded surili, is a species of monkey in the family Cercopithecidae.It was formerly considered a subspecies of the Raffles' banded langur Presbytis femoralis, but genetic analysis revealed that it is no more related to Raffles' banded langur than it is to several other Presbytis species.
Lastly, the White-headed langur (T. leucocephalus), previously thought to be a subspecies of the Francois langur (T. Francois) or Cat Ba langur (T. poliocephalus), is currently recognized as a distinct species by IUCN Red List assessors and the American Society of Mammalogists, based on a 2007 paper by Groves. [17] [18] [19]
Langurs mostly walk quadrupedally and spend half of their time on the ground and the other half in trees. They will also make bipedal hops, climbing and descending supports with the body upright, and leaps. Langurs can leap 3.6–4.7 m (12–15 ft) horizontally and 10.7–12.2 m (35–40 ft) in descending. [8]