HomeFish encyclopediaRay-finned fishesPerch-like fishThreefin blenniesUmpire Triplefin Umpire Triplefin (Enneapterygius rhabdotus) Scientific name: Enneapterygius rhabdotus Fricke, 1994 The Umpire Triplefin (Enneapterygius rhabdotus) is a marine fish of the family Tripterygiidae. Native range: Western Central Pacific. Species factsScientific nameEnneapterygius rhabdotusFamilyTripterygiidae (Threefin blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length2.7Depth range1–8 m (3–26 ft)EnvironmentMarine; demersal; depth range 1 - 8 mClimateTropicalDistributionWestern Central Pacific.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