Endangered
Proboscis monkey
Nasalis larvatus
The proboscis monkey or long-nosed monkey is an arboreal Old World monkey with an unusually large nose (or proboscis), a reddish-brown skin color and a long tail.
Appearance
Only the Tibetan macaque and a few of the gray langurs can rival its size. The proboscis monkey has a long coat. The fur on the back is bright orange, reddish brown, yellowish brown or brick-red. The underfur is light-grey, yellowish, or greyish to light-orange.
Males have a head-body length of 66 to 76.2 cm (26.0 to 30.0 in) and typically weigh 16 to 22.5 kg (35 to 50 lb), with a maximum known weight of 30 kg (66 lb).
Published measurements include mass about 455.
Range and habitat
The proboscis monkey is endemic to the island of Borneo and can be found in all three nations that divide the island: Brunei, Indonesia and Malaysia. It is most common in coastal areas and along rivers. This species is restricted to lowland habitats that may experience tides.
It is endemic to the Southeast Asian island of Borneo and is found mostly in mangrove forests and on the coastal areas of the island. The proboscis monkey can be found in 16 protected areas: Danau Sentarum National Park, Gunung Palung National Park, Kendawangan Nature Reserve, Kutai National Park, Lesan Protection Forest, Muara Kaman Nature Reserve, Mandor Reserve and Tanjung Puting National Park in Indonesia. Bako National Park, Gunung Pueh Forest Reserve, Kabili-Sepilok Forest Reserve, Klias National Park, Kulamba Wildlife Reserve, Lower Kinabatangan Wildlife Sanctuary, Sungei Samunsam Wildlife Sanctuary and Ulu Segama Reserve in Malaysia.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Diet and breeding
Some individuals are solitary, mostly males. There exist bands that arise when groups come together and slip apart yet sometimes groups may join to mate and groom.
The mothers then eat the placenta and lick their infants clean. The young begin to eat solid foods at six weeks and are weaned at seven months old.
In crisis
The proboscis monkey is assessed as endangered in the IUCN Red List of Threatened Species and listed in Appendix I of CITES. Its total population has decreased by more than 50% in the past 36–40 years to 2008 due to ongoing habitat loss because of logging and oil palm plantations, and hunting in some areas due to the species being treated as a delicacy, as well as its use in traditional Chinese medicine. The population is fragmented: the largest remaining populations are found in Kalimantan. There are far fewer in Sarawak, Brunei and Sabah.
Proboscis monkey is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Proboscis monkey, Wikidata item Q192029. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
