HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesMainland's goby Mainland's goby (Psilogobius mainlandi) Scientific name: Psilogobius mainlandi Baldwin, 1972 The Mainland's goby (Psilogobius mainlandi) is a marine fish of the family Gobiidae. Native range: Eastern Central Pacific, Hawaii. BiologyBenthic. Associated with alpheid shrimp which burrows on shallow reef flats.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePsilogobius mainlandiFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length3.7Depth range1–15 m (3–49 ft)EnvironmentMarine; demersal; depth range 1 - 15 mClimateTropicalDistributionEastern Central Pacific: Hawaii.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