HomeFish encyclopediaRay-finned fishesSawbelliesSlimeheadsSaya de Malha luminous roughy Saya de Malha luminous roughy (Aulotrachichthys sajademalensis) Scientific name: Aulotrachichthys sajademalensis Kotlyar, 1979 The Saya de Malha luminous roughy (Aulotrachichthys sajademalensis) is a marine fish of the family Trachichthyidae. Native range: Indian Ocean, Saya de Malha. Mediterranean Sea: Nazareth Banks. Northwest Pacific: Kyushu-Palau Ridge. Known also off Somalia (Moore, pers. comm.). Species factsScientific nameAulotrachichthys sajademalensisFamilyTrachichthyidae (Slimeheads)OrderBeryciformes (Sawbellies)ClassActinopterygii (Ray-finned fishes)Maximum length9.6Depth range143–274 m (469–899 ft)EnvironmentMarine; bathypelagic; depth range 143 - 274 mClimateDeep-waterDistributionIndian Ocean: Saya de Malha. Mediterranean Sea: Nazareth Banks. Northwest Pacific: Kyushu-Palau Ridge. Known also off Somalia (Moore, pers. comm.).Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, 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