Creatures in Crisis
Photograph of Southern muriqui (Brachyteles arachnoides), recorded as Critically Endangered
Southern muriqui (Brachyteles arachnoides). Image via Wikimedia Commons.

Critically Endangered

Southern muriqui

Brachyteles arachnoides

The southern muriqui is a muriqui (woolly spider monkey) species endemic to Brazil.

Status
Critically Endangered
Scientific name
Brachyteles arachnoides
Recorded from
Brazil
CITES
Appendix I
Taxonomy
Mammalia · Primates · Atelidae · Brachyteles

Appearance

The southern muriqui, B. Arachnoides, has a solid black face, distinguishing it from the northern species, B. Hypoxanthus, that has a black face mottled with pink.

Male muriquis have a head-body length of 55–78 cm (21.5–30.5 in), with a tail of 74–80 cm (29–31.5 in) and a body weight of 9.6–15 kg (21–33 lb).

Range and habitat

Southern muriquis are now found only in specific areas of the Atlantic rainforest located in Brazil, South America, more specifically they are found in the Brazilian states of Paraná, São Paulo, Rio de Janeiro, Espírito Santo and Minas Gerais. The southern muriqui is a muriqui (woolly spider monkey) species endemic to Brazil.

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

Diet and breeding

Muriquis play a major role in seed dispersal and are known to provide complementary foraging opportunities for tapirs. Like chimpanzees, male southern muriquis are philopatric, while females immigrate to spread genetic diversity and avoid incestuous breeding with their relatives.

In crisis

This species is considered endangered because of habitat destruction, hunting pressures, and historic population declines. Only two captive populations of the southern muriqui exist. The wild population was estimated at 1,300 in 2005.

In 2005, scientists, zookeepers, NGOs, and many others discussed priorities and strategies to protect muriquis from extinction.

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

Southern muriqui is Critically 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 Southern muriqui, Wikidata item Q1140418. 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 Northern muriqui (Brachyteles hypoxanthus), recorded as Critically EndangeredCR

Northern muriqui

Brachyteles hypoxanthus
Photograph of Vaquita (Phocoena sinus), recorded as Critically EndangeredCR

Vaquita

Phocoena sinus
Photograph of Javan rhinoceros (Rhinoceros sondaicus), recorded as Critically EndangeredCR

Javan rhinoceros

Rhinoceros sondaicus
Photograph of Sumatran orangutan (Pongo abelii), recorded as Critically EndangeredCR

Sumatran orangutan

Pongo abelii

Quick answers

What is Southern muriqui?
The southern muriqui is a muriqui (woolly spider monkey) species endemic to Brazil.
What is the conservation status of Southern muriqui?
Critically Endangered, as the IUCN category stored on Wikidata for Brachyteles arachnoides. Confirm the official assessment on iucnredlist.org.
Where does Southern muriqui live?
Southern muriquis are now found only in specific areas of the Atlantic rainforest located in Brazil, South America, more specifically they are found in the Brazilian states of Paraná, São Paulo, Rio de Janeiro, Espírito Santo and Minas Gerais.
Why is Southern muriqui in crisis?
The wild population was estimated at 1,300 in 2005.
Is this the IUCN Red List page for Brachyteles arachnoides?
No. This is a researched catalog account. The Red List is the assessment.
Is Southern muriqui a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.