HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesBlotchcheek goby Blotchcheek goby (Ctenogobius fasciatus) Scientific name: Ctenogobius fasciatus Gill, 1858 The Blotchcheek goby (Ctenogobius fasciatus) is a freshwater fish of the family Gobiidae. Native range: Western Central Atlantic, Mexico, Costa Rica to Venezuela, Dominica, Trinidad and Barbados. Species factsScientific nameCtenogobius fasciatusFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.2EnvironmentMarine; freshwater; brackish; demersal; amphidromousClimateTropicalDistributionWestern Central Atlantic: Mexico, Costa Rica to Venezuela, Dominica, Trinidad and Barbados.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