Proboscis Monkeys


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Proboscis Monkeys

 

a group of catarrhine monkeys of the family Cercopithecidae. The group comprises three genera.

The genus Nasalis has one species, the true proboscis monkey (N. larvatus), which is found on the island of Borneo (Kalimantan). The true proboscis monkey has a long nose. Its body length is 55–75 cm, and its tail length 65–75 cm.

The genus Rhinopithecus has two species: the snub-nosed langur (R. roxellanae) —with three subspecies, which are distributed in southern and western China—and the Tonkin snub-nosed langur (R. avunculus), which is distributed in northern Vietnam. Both species have snub noses that curve upward in old individuals. The body length measures 55–85 cm, and the tail length 60–95 cm. The hairs, as in Nasalis, are long and of various colors.

The genus Simias has one species, the pig-tailed langur (S. concolor), which is found on the islands of Siberut, Sipora, and South Pagi and in southwestern Sumatra. The nose is snub but less developed than that of Rhinopithecus. The body length is about 55 cm, and the tail length 13–15 cm. The coloration is dusky brown.

Proboscis monkeys are arboreal animals and live in groups of 20 or more individuals. The numbers of snub-nosed and pig-tailed langurs are sharply decreasing.

T. D. GLADKOVA

References in periodicals archive ?
Selection of river crossing location and sleeping site by Proboscis monkeys (Nasalis larvatus) in Sabah, Malaysia.
As proboscis monkeys (Nasalis larvatus) often sleep along rivers and form bands (aggregations of one male groups) at their sleeping sites, understanding sleeping site selection may shed light on two unusual aspects of this species' socioecology: their close association with rivers and their multilevel social organization.
Gaya Island luxury resort, main, and clockwise from top left: a proboscis monkey; in-house naturalist Justin Juhun; locals enjoying a foot massage at the Gaya Street Sunday market in Kota Kinabalu and the Kampung Luanti fish spa in Ranau.
Gaya Island Resort is a launching pad to discover Borneo, which offers beaches, diving sites, rainforests home to many rare species, including orangutans and proboscis monkeys. Gaya Island Resort will incorporate elements of Sabahan architecture and contemporary design complete with modern amenities and Wi-Fi capabilities.
But proboscis monkeys don't seem to be able to smell any better than monkeys with short noses.
Baby proboscis monkeys' are born with tiny upturned noses, blue faces, and silver-blue fur.
'I find the stunning variety of wildlife here such an inspiration, from the beautiful Malaysian tigers and tapirs to the gorgeous colours of the orang utans, proboscis monkeys and hornbills.
There's a river cruise to explore the mangroves and spot proboscis monkeys, a sunset cruise and a trek that ends in a champagne breakfast.
It seems that these include cheek flanges in orangutans, elongated noses on proboscis monkeys, upperlip warts in golden snub-nosed monkeys - and beards on humans.
He has also been involved in conservation programmes for orangutans, elephants, proboscis monkeys and the elusive slow loris.
"Urgent mitigating strategies are necessary to ensure the long-term survival of proboscis monkeys in Sabah.
Numbers of proboscis monkeys - famed for their long noses - have declined to around 5,900 on the Malaysian island of Borneo, with their river and coastal habitats being destroyed to make way for palm-oil plantations.