Bald Uakari (Cacajao calvus)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Family: Pitheciidae
Subfamily: Pitheciinae
Genus: Cacajao
Lesson, 1840
Type species
Simia melanocephalus
Humboldt, 1812

Cacajao melanocephalus
Cacajao calvus
Cacajao ayresi
Cacajao hosomi

Uakari is the common name for the New World monkeys of the genus Cacajao. Both the English and scientific names are believed to have originated from indigenous languages.[2]

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.

The four species of uakari currently recognized are all found in the north-western Amazon Basin. The Bald Uakari 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 Ayres Uakari is currently known only from the Rio Curuduri basin.

Uakaris are typically lethargic and silent in zoo conditions, but in the wild they are agile and active, capable of leaps of over 6 meters.[citation needed] They have been observed both in small groups and in larger troops of up to 100. When traveling through the forest they move in the lower branches of the trees, though when foraging they also go up to the canopy. They eat fruit, nuts, buds and leaves.[citation needed]

Henry Walter Bates, the nineteenth century zoologist, recorded that the Native Americans captured uakaris alive by using blowpipe darts or arrows tipped with diluted curare; once captured the animals were revived by putting a pinch of salt in their mouths. Those animals that survived were kept as pets.[citation needed]


There are four species in this genus:[1][3]

  • Genus Cacajao
    • Bald Uakari or Red Uakari, C. calvus
      • Cacajao calvus calvus
      • Cacajao calvus ucayalii
      • Cacajao calvus rubicundus
      • Cacajao calvus novaesi
    • Black-headed Uakari, Cacajao melanocephalus
    • Aracá Uakari, Cacajao ayresi*
    • Neblina Uakari, Cacajao hosomi*

*Newly described species.[3]


  1. ^ a b Groves, C. (2005). Wilson, D. E., & Reeder, D. M, eds. ed. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 146. OCLC 62265494. ISBN 0-801-88221-4. 
  2. ^ Barnett, A. A. (2004). The meanings of Cacajao and Uacari: Folk Etymology in Neotropical Primate Taxonomy. Neotropical Primates 12(3): 147-152
  3. ^ a b Boubli, J. P., M. N. F. da Silva, M. V. Amado, T. Hrbek, F. B. Pontual, and I. P. Farias (2008). "A taxonomic reassessment of black uakari monkeys, Cacajao melanocephalus group, Humboldt (1811), with the description of two new species". International Journal of Primatology 29: 723–749. doi:10.1007/s10764-008-9248-7. 

External links

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Look at other dictionaries:

  • Uakari — Ua*ka ri, n. (Zo[ o]l.) Same as {Ouakari}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Uakari — Uakari, s. Kurzschwanzaffe …   Meyers Großes Konversations-Lexikon

  • Uakari — Uakari, eine Art des Kurzschwanzaffen (s.d.) …   Kleines Konversations-Lexikon

  • uakari — uakàri m <G ja> DEFINICIJA zool. bjeloglavi nakari (Cacajao/Uacaria calvus), vrsta rijetkog kratkorepog majmuna iz roda Cacajao, obitava u prašumama Amazone ETIMOLOGIJA šp. uacari ← tupi …   Hrvatski jezični portal

  • Uakari — Uakaris Roter Uakari (Cacajao calvus) Systematik Überordnung: Euarchontoglires …   Deutsch Wikipedia

  • uakari — /wah kahr ee/, n., pl. uakaris. any of several medium sized, tree dwelling Amazon basin monkeys of the genus Cacajao, the only New World monkeys having a short tail: all are now rare. [1860 65; < Tupi and Guarani uakari] * * * ▪ monkey genus… …   Universalium

  • uakari — noun (plural ris) Etymology: from an unidentified language of western Brazilian Amazonia Date: 1863 either of two short tailed mostly naked faced South American monkeys (Cacajao melanocephalus and C. calvus) …   New Collegiate Dictionary

  • uakari — noun Any of several arboreal monkeys, of the genus Cacajao, from the Amazon basin …   Wiktionary

  • Uakari — Ua|ka|ri der; s, s <aus dem Tupi (einer südamerik. Indianersprache)> Scharlachgesicht; 30 cm körperlanger Kurzschwanzaffe in den Urwäldern Südamerikas …   Das große Fremdwörterbuch

  • uakari — short tailed, long haired monkey Unusual Animals …   Phrontistery dictionary