HomeFreshwater aquarium fishPuffers, gobies & brackish fishFrillfin goby Frillfin goby (Bathygobius soporator) Scientific name: Bathygobius soporator Valenciennes, 1837 The Frillfin goby (Bathygobius soporator) is a freshwater fish of the family Gobiidae. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 8. The Frillfin goby, named for its free upper pectoral fin rays.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBathygobius soporatorFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Depth range0–16 m (0–52 ft)EnvironmentMarine; freshwater; brackish; demersal; non-migratory; depth range 0 - 16 mClimateTropicalDistributionEastern Atlantic: Senegal to Angola and offshore islands. Western Atlantic: Florida Keys in the USA, Bermuda and the Bahamas to Santa Catarina, Brazil. Mediterranean Sea. Suspected to be conspecific with Bathygobius fuscus. Record from Algeria needs confirmation.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More puffers, gobies & brackish fishViolet gobyGobioides broussonnetiiSpotted scatScatophagus argusMalabar pufferfishCarinotetraodon travancoricusStigmatogobius sadanundioNorthern trout gudgeonMogurnda mogurndaAmazon pufferColomesus asellusSee all puffers, gobies & brackish fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026