Cacajao spp. •
cacajao spp

Cacajao spp.

Cacajao spp. NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports — Cacajao spp. ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

The uakaris are unusual among New World monkeys in that the tail length (15–18 cm) is substantially less than their head and body length (40–45 cm). Their bodies are covered with long, loose hair but their heads are bald. They have almost no subcutaneous fat, so their bald faces appear almost skull-like. Like their closest relatives the saki monkeys, they have projecting lower incisors. These monkeys have the most striking red facial skin of any primate. Females choose their mates based on how red the male’s face is. Evidence suggests that the red facial coloration reflects the health of the primate.

The four species of uakari currently recognized are all found in the north-western Amazon basin. The bald uakari, remarkable for its brilliant scarlet complexion, is found north of the Amazon River, and south of the Japurá River in the Mamirauá Sustainable Development Reserve. The black-headed uakari is found north of the Amazon and south of the Rio Negro. The Neblina uakari is found north of the Rio Negro, west of the Rio Marauiá and east of the Casiquiare canal. The Aracá uakari is currently known only from the Rio Curuduri basin.

Detailed information
Full Name: uakari (Cacajao spp.)
Where found: Wherever found
Critical Habitat:N/A
Species Group:Mammals
Current listing status
Status Date Listed Lead Region Where Listed
Endangered 06/02/1970 Foreign (Headquarters) Wherever found
  • Countries in which the the uakari, Wherever found is known to occur: Brazil, Colombia, Ecuador, Peru, Venezuela
Federal register documents
Citation Page
06/02/1970 35 FR 8491 8498 Part 17 - Conservation of Endangered Species and Other Fish or Wildlife (First List of Endangered Foreign Fish and Wildlife as Appendix A)
04/14/1970 35 FR 6069 Notice of Proposed Rulemaking (Endangered Species Conservation); 35 FR 6069
No recovery information is available for the uakari.
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