OdontocharacidiumOdontocharacidium is a genus of freshwater ray-finned fishes belonging to the family Crenuchidae, the South American darters. The fishes in this genus are small fishes, with a maximum total length of, found in South America.SpeciesOdontocharacidium contains the following valid species:Odontocharacidium aphanes Odontocharacidium varii Queiroz Rodrigues & Netto-Ferreira, 2020