HomeFish encyclopediaRay-finned fishesCatfishThree-barbeled catfishesOlmec blind catfish Olmec blind catfish (Rhamdia macuspanensis) Scientific name: Rhamdia macuspanensis Weber & Wilkens, 1998 The Olmec blind catfish (Rhamdia macuspanensis) is a freshwater fish of the family Heptapteridae. Native range: Central America, Mexico. Species factsScientific nameRhamdia macuspanensisFamilyHeptapteridae (Three-barbeled catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length13.8EnvironmentFreshwater; benthopelagicClimateTropicalDistributionCentral America: Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026