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Gymnocorymbus
Gymnocorymbus is a genus of small characins from the Amazon, Paraguay, Orinoco, Courantyne, Gurupí and Parnaíba river basins in South America. These tetras are popular in the aquarium trade.
4 branches of this genus, most-observed first · about 4 known species

Black Widow Tetra
speciesGymnocorymbus ternetzi

false black tetra
speciesGymnocorymbus thayeri
Gymnocorymbus flaviolimai
speciesGymnocorymbus flaviolimai

Gymnocorymbus bondi
speciesGymnocorymbus bondi
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Gymnocorymbus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 47386.