HomeFish encyclopediaRay-finned fishesPerch-like fishSleepersGiant bully Giant bully (Gobiomorphus gobioides) Scientific name: Gobiomorphus gobioides Valenciennes, 1837 The Giant bully (Gobiomorphus gobioides) is a freshwater fish of the family Eleotridae. Native range: Southwest Pacific, New Zealand. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 10. Specimen described by Jenyns had 1 ray more in the anal fin than given by Valenciennes.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGobiomorphus gobioidesFamilyEleotridae (Sleepers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length17.4EnvironmentMarine; freshwater; brackish; demersal; amphidromousClimateSubtropicalDistributionSouthwest Pacific: New Zealand.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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