HomeFish encyclopediaRay-finned fishesCatfishThree-barbeled catfishesFilespine chul?n Filespine chul?n (Rhamdia laticauda) Scientific name: Rhamdia laticauda Kner, 1858 The Filespine chul?n (Rhamdia laticauda) is a freshwater fish of the family Heptapteridae. In the aquarium it needs water at 24–28°C (75–82°F). Native range: North and Central America, Central Mexico to northern Panama, in both Pacific and Caribbean slopes. Filespine chul?n care at a glanceTemperature24–28°C (75–82°F) BiologyTypical in highland brooks and in rivers or creeks of moderate to high current velocity, found between 35 and 1350 m elevation. Lives on sand and stone bottoms where it feeds on aquatic insects and in caves.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRhamdia laticaudaFamilyHeptapteridae (Three-barbeled catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length22.5EnvironmentFreshwater;; pH range: 7.5 - ?; dH range: 14 - ? benthopelagicClimateTropicalDistributionNorth and Central America: Central Mexico to northern Panama, in both Pacific and Caribbean slopes.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026