HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesDarter goby Darter goby (Ctenogobius boleosoma) Scientific name: Ctenogobius boleosoma Jordan & Gilbert, 1882 The Darter goby (Ctenogobius boleosoma) is a freshwater fish of the family Gobiidae. Native range: Western Atlantic, North Carolina (USA), the Bahamas, and northern Gulf of Mexico to Rio de Janeiro, Brazil. BiologyDorsal spines (total): 6 - 7; Dorsal soft rays (total): 10-12; Anal spines: 0; Anal soft rays: 11 - 13. About 5 round or elongate dark blotches along mid-side, some with diagonal marks extending upward to form V shapes.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCtenogobius boleosomaFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.5Common length4.0EnvironmentMarine; freshwater; brackish; reef-associated; amphidromousClimateTropicalDistributionWestern Atlantic: North Carolina (USA), the Bahamas, and northern Gulf of Mexico to Rio de Janeiro, 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