''Eigenmannia cacuria'' is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

of glass knifefish from the upper rio Parnaíba in the northeast of

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

. Guilherme Moreira Dutra, Telton Pedro Anselmo Ramos and Naércio Aquino Menezes. 2022. Description of Three New Species of Eigenmannia (Gymnotiformes: Sternopygidae) from the rio Mearim and rio Parnaíba basins, Northeastern Brazil. Neotrop Ichthyol. 20(1);e210117. DOI: 10.1590/1982-0224-2021-0117

Etymology

The species name of “cacuria” is in reference to the “ cacuriá”, a typical dance in the state of Maranhão, Brazil where the holotype was collected.

References

Sternopygidae Fish of Brazil Taxa named by Guilherme Moreira Dutra Taxa named by Telton Pedro Anselmo Ramos Taxa named by Naércio Aquino de Menezes Fish described in 2022 {{Gymnotiformes-stub