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Characidae

From Wikipedia, the free encyclopedia

Characidae
Charax stenopterus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Division: Teleostei
Order: Characiformes
Suborder: Characoidei
Family: Characidae
Latreille, 1825[1]
Type genus[1][2]
Charax
Scopoli, 1777
Subfamilies

Aphyocharacinae
Characinae
Cheirodontinae
Exodontinae
Tetragonopterinae

Characidae, the characids, is a family of freshwater subtropical and tropical fish belonging to the order Characiformes. They are found throughout much of Central and South America, including such major waterways as the Amazon and Orinoco Rivers.[3] These fish vary in length; many are less than 3 cm (1.2 in).[4]

The name "characins" is a historical one,[5] but scientists today tend to prefer "characids" to reflect their status as a, by and large, monophyletic group (at family rank). This family includes some of the first characiforms to be described to science, such as Charax and Tetragonopterus, and thus lend their name to the order, as well as to common names such as "characin" and "tetra".[6]

Past taxonomic treatments had a much more expansive definition of the family, including numerous South American fish families such as the piranhas and dorados, as well as the African alestids. Following multiple taxonomic revisions, this was eventually restricted to just the American "tetra" type characins by the 2010s. However, even this definition of Characidae was found to obscure much of the evolutionary diversity within the group, and in 2024 the "tetra" families Acestrorhamphidae and Stevardiidae were split out of the Characidae, leaving it with just five subfamilies.[7][8]

Classification

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Aphyocharax anisitsi (Aphyocharacinae)

Taxonomy

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The following classification is based on Eschmeyer's Catalog of Fishes (2025):[8][9][1]

Family Characidae

Former members

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Phylogeny of Characidae from Melo et al. 2015[12] with clade names from van der Laan 2017.[13]
Characidae

This family has undergone a large amount of systematic and taxonomic change. More recent revision has moved many former members of the family into their own related but distinct families – the pencilfishes of the genus Nannostomus are a typical example, having now been moved into the Lebiasinidae, the assorted predatory species belonging to