HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesMystery goby Mystery goby (Chriolepis tagus) Scientific name: Chriolepis tagus Ginsburg, 1953 The Mystery goby (Chriolepis tagus) is a marine fish of the family Gobiidae. Native range: Southeast Pacific, Galapagos Islands. Species factsScientific nameChriolepis tagusFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length1.6EnvironmentMarine; demersalClimateTropicalDistributionSoutheast Pacific: Galapagos Islands.Conservation status (IUCN)Data deficient (DD)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