RhinodorasRhinodoras is a genus of thorny catfishes native to South America.SpeciesThere are currently five recognized species in this genus:Rhinodoras armbrusteri Sabaj Pérez, 2008Rhinodoras boehlkei Glodek, Whitmire & Orcés-V., 1976Rhinodoras dorbignyi Rhinodoras gallagheri Sabaj Pérez, Taphorn & Castillo G., 2008Rhinodoras thomersoni Taphorn & Lilyestrom, 1984Fossil recordRhinodoras has been identified in the fossil record from the late Miocene Urumaco Formation, Falcón State, Venezuela. R. thomersoni may have a minimum age of 8 million years.Appearance and anatomyRhinodoras species are distinguished from other doradids by a unique combination of coloration and lip shape.