HomeFish encyclopediaRay-finned fishesPerch-like fishSleepersSandwich Island sleeper Sandwich Island sleeper (Eleotris sandwicensis) Scientific name: Eleotris sandwicensis Vaillant & Sauvage, 1875 The Sandwich Island sleeper (Eleotris sandwicensis) is a freshwater fish of the family Eleotridae. Native range: Oceania, Hawaii. Reported from USA. BiologyGenerally brown to black in color; pelvic fins separate rather than fused into a disc; young fish 44091).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEleotris sandwicensisFamilyEleotridae (Sleepers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length33.0EnvironmentMarine; freshwater; brackish; demersal; amphidromousClimateTropicalDistributionOceania: Hawaii. Reported from USA.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: commercial; bait: usuallyResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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