Creatures in Crisis
Photograph of Greater Slow Loris (Nycticebus coucang), recorded as Endangered
Greater Slow Loris (Nycticebus coucang). Image via Wikimedia Commons.

Endangered

Greater Slow Loris

Nycticebus coucang

Greater Slow Loris is a loris in the family Lorisidae (order Primates) — Nycticebus coucang, recorded as Endangered.

Status
Endangered
Scientific name
Nycticebus coucang
CITES
Appendix I
Taxonomy
Mammalia · Primates · Lorisidae · Nycticebus

Appearance

Like other slow lorises, it has a wet nose (rhinarium), a round head, small ears hidden in thick fur, a flat face, large eyes and a vestigial tail. The Sunda slow loris is nocturnal and arboreal, typically occurring in evergreen forests.

It measures 27 to 38 cm (11 to 15 in) from head to tail and weighs between 599 and 685 g (21.1 and 24.2 oz).

Range and habitat

The Sunda slow loris is found in continuous canopy tropical rainforests. It is adaptable and will also live in other types of habitat. It is found in Indonesia, on the islands of Sumatra, Batam and Galang in the Riau Archipelago, and Tebing Tinggi Island and Great Natuna (Bunguran) in the Natuna Islands. In Malaysia on the Malay Peninsula and Pulau Tioman; in the southern peninsular of Thailand, and Singapore.

Lack of teeth makes reintroduction to the wild impossible. Once it has lost its teeth, reintroduction to the wild is impossible.

Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.

Diet and breeding

Like other slow lorises, the Sunda slow loris is an arboreal and nocturnal primate, resting by day in the forks of trees, or in thick vegetation and feeding on fruit and insects by night. Despite its slow metabolism rate, the Sunda slow loris has a high-energy diet.

Reproduction is one of the few times the Sunda slow loris aggregates with conspecifics, as it is largely solitary. This may suggest a more promiscuous mating system, where females mate with more than one male.

In crisis

Individuals are generally solitary, with one study showing only 8% of its active time was spent near other individuals. The species is listed as endangered on the IUCN Red List. It is threatened with extinction due to a growing demand in the exotic pet trade, and has become one of the most abundant primate species on sale at Indonesian pet markets.

According to the 2020 International Union for Conservation of Nature (IUCN) Red List assessment, the Sunda slow loris was evaluated as endangered. Its population size is unknown and further studies need to be carried out to confirm their conservation status.

CITES lists this taxon on Appendix I. Confirm the current appendix on the CITES checklist.

Greater Slow Loris 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 Greater Slow Loris, Wikidata item Q688601. 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.

Photograph via Wikimedia Commons. Wikipedia · Wikidata · IUCN Red List.

Same genus

Photograph of Bangka Slow Loris (Nycticebus bancanus), recorded as Critically EndangeredCR

Bangka Slow Loris

Nycticebus bancanus
Photograph of Javan slow loris (Nycticebus javanicus), recorded as Critically EndangeredCR

Javan slow loris

Nycticebus javanicus
Photograph of Bengal slow loris (Nycticebus bengalensis), recorded as EndangeredEN

Bengal slow loris

Nycticebus bengalensis
Photograph of Sumatran slow loris (Nycticebus hilleri), recorded as EndangeredEN

Sumatran slow loris

Nycticebus hilleri

Quick answers

What is Greater Slow Loris?
Greater Slow Loris is a loris in the family Lorisidae (order Primates) — Nycticebus coucang.
What is the conservation status of Greater Slow Loris?
Endangered, as the IUCN category stored on Wikidata for Nycticebus coucang. Confirm the official assessment on iucnredlist.org.
Where does Greater Slow Loris live?
The Sunda slow loris is found in continuous canopy tropical rainforests.
Why is Greater Slow Loris in crisis?
Individuals are generally solitary, with one study showing only 8% of its active time was spent near other individuals.
Is this the IUCN Red List page for Nycticebus coucang?
No. This is a researched catalog account. The Red List is the assessment.
Is Greater Slow Loris a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.