HomeFish encyclopediaRay-finned fishesPerch-like fishSleepersFlathead sleeper Flathead sleeper (Erotelis armiger) Scientific name: Erotelis armiger Jordan & Richardson, 1895 The Flathead sleeper (Erotelis armiger) is a marine fish of the family Eleotridae. Native range: Eastern Central Pacific, Mexico. Species factsScientific nameErotelis armigerFamilyEleotridae (Sleepers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; demersalClimateTropicalDistributionEastern Central Pacific: Mexico.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