HomeFish encyclopediaRay-finned fishesClingfishesClingfishes and singleslitsMountain clingfish Mountain clingfish (Gobiesox fluviatilis) Scientific name: Gobiesox fluviatilis Briggs & Miller, 1960 The Mountain clingfish (Gobiesox fluviatilis) is a freshwater fish of the family Gobiesocidae. Native range: Central America, Sinaloan coastal and Santiago drainages in Mexico. Species factsScientific nameGobiesox fluviatilisFamilyGobiesocidae (Clingfishes and singleslits)OrderGobiesociformes (Clingfishes)ClassActinopterygii (Ray-finned fishes)Maximum length5.9EnvironmentFreshwater; benthopelagicClimateHigh altitudeDistributionCentral America: Sinaloan coastal and Santiago drainages in Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026