HomeFish encyclopediaRay-finned fishesClingfishesClingfishes and singleslitsMexican clingfish Mexican clingfish (Gobiesox mexicanus) Scientific name: Gobiesox mexicanus Briggs & Miller, 1960 The Mexican clingfish (Gobiesox mexicanus) is a freshwater fish of the family Gobiesocidae. Native range: North America, Pacific versant rivers north of Gulf of Tehuantepec. Species factsScientific nameGobiesox mexicanusFamilyGobiesocidae (Clingfishes and singleslits)OrderGobiesociformes (Clingfishes)ClassActinopterygii (Ray-finned fishes)Maximum length6.9EnvironmentFreshwater; benthopelagicClimateHigh altitudeDistributionNorth America: Pacific versant rivers north of Gulf of Tehuantepec.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