Rachoviscus is a genus of freshwater ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. These threatened fish are endemic to coastal river basins in Bahia, Paraná and Santa Catarina in eastern Brazil.ICMBio (Ministry of the Environment, Brazil): Portaria MMA nº 445, de 17 de dezembro de 2014. Lista de Especies Ameaçadas - Saiba Mais. Retrieved 1 December 2018.
Species Rachoviscus contains the following valid species: Rachoviscus crassiceps G. S. Myers, 1926 Rachoviscus graciliceps S. H. Weitzman & da Cruz, 1981
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