HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesGalapagos blue-banded goby Galapagos blue-banded goby (Lythrypnus gilberti) Scientific name: Lythrypnus gilberti Heller & Snodgrass, 1903 The Galapagos blue-banded goby (Lythrypnus gilberti) is a marine fish of the family Gobiidae. Native range: Southeast Pacific, Galapagos Islands. BiologyTiny, bold and aggressive fish which lives in small recesses of rocky reefs, slopes and walls. Feeds on various small crustaceans.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLythrypnus gilbertiFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.5Depth range1–40 m (3–131 ft)EnvironmentMarine; reef-associated; depth range 1 - 40 mClimateTropicalDistributionSoutheast Pacific: Galapagos Islands.Conservation status (IUCN)Vulnerable (VU) (D2)Threat 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