HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesAmerican freshwater goby American freshwater goby (Ctenogobius shufeldti) Scientific name: Ctenogobius shufeldti Jordan & Eigenmann, 1887 The American freshwater goby (Ctenogobius shufeldti) is a freshwater fish of the family Gobiidae. Native range: North America, North Carolina to southern Florida and Texas in the USA. South America: Venezuela and Brazil. Biology5 dark squarish blotches along mid-side. No bar below eye; no shoulder spot.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCtenogobius shufeldtiFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length8.0Common length4.6EnvironmentFreshwater; brackish; demersalClimateSubtropicalDistributionNorth America: North Carolina to southern Florida and Texas in the USA. South America: Venezuela and Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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