Hypopomus
Hypopomus artedi is a species of bluntnose knifefish that is found in Argentina, Brazil, French Guiana, Guyana and Suriname. This species can reach a length of  SL. It can also be found in the aquarium trade. It is the only member of its genus. References

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Hypopomidae
Fish of South America
Fish of Brazil
Fish of Argentina
Monotypic freshwater fish genera
Taxa named by Theodore Gill