HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesCloudy goby Cloudy goby (Opua nephodes) Scientific name: Opua nephodes Jordan, 1925 The Cloudy goby (Opua nephodes) is a marine fish of the family Gobiidae. Native range: Pacific Ocean, Marshall Islands and Hawaiian Islands. BiologyDorsal spines (total): 6 - 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 9. SL to about 40 mm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOpua nephodesFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.4Depth range1–169 m (3–554 ft)EnvironmentMarine; reef-associated; depth range 1 - 169 mClimateTropicalDistributionPacific Ocean: Marshall Islands and Hawaiian Islands.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