Colombian red howler
species of mammal
The Colombian red howler or Venezuelan red howler (Alouatta seniculus) is a South American species of howler monkey, a type of New World monkey, found in the western Amazon Basin in Venezuela, Colombia, Ecuador, Peru and Brazil. The population in the Santa Cruz Department in Bolivia was split off as a separate species, the Bolivian red howler, in 1986, and more recently, splitting off the population in northeastern South America and Trinidad as the Guyanan red howler has occurred. All howler monkeys belong to the family Atelidae and the infraorder Platyrrhini (New World monkeys).
Description
Sexual dimorphism in this species is small; males range from 49 to 72 cm and females from 46 to 57 cm long. The males weigh 5.4–9 kg, while females weigh 4.2–7 kg. It has a long prehensile tail of 49–75 cm. The tail is covered with fur except for the last third of the underside, which allows it to grab branches. The color of both males and females is a deep reddish-brown, and the color shade changes with age. Their faces are surrounded by fur and they have stubby noses.
The jawbone of the red howler monkey is large, especially the body of the mandible.
The public source identifies “Colombian red howler” as species of mammal. This brief keeps that definition visible, then builds a research path around Colombian, howler and species.
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A short description can identify a subject without explaining its stakes. For “Colombian red howler”, the useful work is to connect “species of mammal” to the records capable of establishing context and consequence.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 30, 2026. The linked authority identifier is Q583362. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1986.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Colombian red howler” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.