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Gymnocorymbus ternetzi.JPG
Gymnocorymbus ternetzi
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Characidae
Genus: Gymnocorymbus
C. H. Eigenmann, 1908

Gymnocorymbus is a genus of small characins from the Amazon, Paraguay, Orinoco, Courantyne, Gurupí and Parnaíba river basins in South America.[1][2] These tetras are popular in the aquarium trade.


There are currently 4 recognized species in this genus:[2]


  1. ^ a b Benine, R.C., Melo, B.F., Castro, R.M.C. & Oliveira, C. (2015): Taxonomic revision and molecular phylogeny of Gymnocorymbus Eigenmann, 1908 (Teleostei, Characiformes, Characidae). Zootaxa, 3956 (1): 1-28.
  2. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2017). Species of Gymnocorymbus in FishBase. January 2017 version.