The hairy saki (''Pithecia hirsuta'') is a species of

saki monkey Sakis, or saki monkeys, are any of several New World monkeys of the genus ''Pithecia''. They are closely related to the bearded sakis of genus ''Chiropotes''. Range Sakis' range includes northern and central South America, extending from the so ...

, a type of

New World monkey New World monkeys are the five families of primates that are found in the tropical regions of Mexico, Central and South America: Callitrichidae, Cebidae, Aotidae, Pitheciidae, and Atelidae. The five families are ranked together as the Ceboidea ( ...

. It is found in northern

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

, southern

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

, and a small portion of northwestern

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

Taxonomy

It was described in 1823 by

Johann Baptist von Spix Johann Baptist Ritter von Spix (9 February 1781 – 13 March 1826) was a German natural history, biologist. From his expedition to Brazil, he brought to Germany a large variety of specimens of plants, insects, mammals, birds, amphibians and fish. ...

, but was later merged with the

monk saki The monk saki (''Pithecia monachus'') also known as Geoffroy's monk saki, is a species of saki monkey, a type of New World monkey, from South America. It is found in forested areas of northwestern Brazil and northeastern Peru. Taxonomy The hai ...

(''P. monachus''). However, a 2014 study revived it as a distinct species based on differences in pelage coloration. The

American Society of Mammalogists The American Society of Mammalogists (ASM) was founded in 1919. Its primary purpose is to encourage the study of mammals, and professions studying them. There are over 4,500 members of this society, and they are primarily professional scientists ...

IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biol ...

, and

ITIS The Integrated Taxonomic Information System (ITIS) is an American partnership of federal agencies designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagenc ...

all follow this classification.

Distribution

This species is found roughly at the intersection between

, and

, and ranges west of the Rio Negro, north of the

Solimões River Solimões () is the name often given to upper stretches of the Amazon River in Brazil from its confluence with the Rio Negro upstream to the border of Peru. Geography The Amazon / Solimões river just above the confluence of the Solimões and ...

Napo River The Napo River ( es, Río Napo) is a tributary to the Amazon River that rises in Ecuador on the flanks of the east Andean volcanoes of Antisana, Sincholagua and Cotopaxi. The total length is . The river drains an area of . The mean annual discha ...

, and south of the

Japurá River The Japurá River or Caquetá River is a river about long in the Amazon basin. It rises in Colombia and flows eastward through Brazil to join the Amazon River. Course The river rises as the Caquetá River in the Andes in southwest Colombia. Th ...

. It is not known how far west it occurs, and where the boundary between this species and

Miller's saki Miller's saki (''Pithecia milleri''), also known as Miller's monk saki, is a species of saki monkey, a type of New World monkey. Its range includes parts of southwestern Colombia, northeastern Ecuador, and perhaps adjacent areas in Peru. This spe ...

(''P. milleri'') is.

Description

It can be considered the most uniform and plain of the sakis, with very little differences in coloration between males and females. Both are largely blackish

agouti The agouti (, ) or common agouti is any of several rodent species of the genus ''Dasyprocta''. They are native to Middle America, northern and central South America, and the southern Lesser Antilles. Some species have also been introduced else ...

in coloration.

Status

This species is thought to be threatened by

logging Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidding, on-site processing, and loading of trees or logs onto trucks or skeleton cars. Logging is the beginning of a supply chain ...

poaching Poaching has been defined as the illegal hunting or capturing of wild animals, usually associated with land use rights. Poaching was once performed by impoverished peasants for subsistence purposes and to supplement meager diets. It was set a ...

and thus its population is thought to be declining. They are sometimes also found in the

pet trade Wildlife trade refers to the of products that are derived from non-domesticated animals or plants usually extracted from their natural environment or raised under controlled conditions. It can involve the trade of living or dead individuals, ti ...

. However, this species remains poorly-known and it is thus classified as

data deficient A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status to be made. This does not necessaril ...

on the

References

{{Taxonbar, from=Q25384584

hairy saki The hairy saki (''Pithecia hirsuta'') is a species of saki monkey, a type of New World monkey. It is found in northern Peru, southern Colombia, and a small portion of northwestern Brazil. Taxonomy It was described in 1823 by Johann Baptist von ...

Mammals of Brazil Mammals of Colombia Mammals of Peru Taxa named by Johann Baptist von Spix