RhamdiopsisRhamdiopsis is a genus of three-barbeled catfishes native to South America where they are endemic to Brazil. One species, R. krugi, is troglobitic.SpeciesThere are currently three recognized species in this genus:Rhamdiopsis krugi Bockmann & R. M. C. Castro, 2010Rhamdiopsis microcephala Rhamdiopsis moreirai Haseman, 1911