HomeFish encyclopediaRay-finned fishesSawbelliesSlimeheadsMetallic roughy Metallic roughy (Hoplostethus metallicus) Scientific name: Hoplostethus metallicus Fowler, 1938 The Metallic roughy (Hoplostethus metallicus) is a marine fish of the family Trachichthyidae. Native range: Western Central Pacific, eastern seaboard of Negros Island, Philippines. Including other locations in Sulu Sea (Moore, pers. comm.). Species factsScientific nameHoplostethus metallicusFamilyTrachichthyidae (Slimeheads)OrderBeryciformes (Sawbellies)ClassActinopterygii (Ray-finned fishes)Depth range55–550 m (180–1804 ft)EnvironmentMarine; bathypelagic; depth range 55 - 550 mClimateDeep-waterDistributionWestern Central Pacific: eastern seaboard of Negros Island, Philippines. Including other locations in Sulu Sea (Moore, pers. comm.).Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: of no interestResilienceLow, minimum population doubling time 4.5 - 14 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