HomeFish encyclopediaSharks and RaysElectric raysSleeper raysSoft electric ray Soft electric ray (Heteronarce mollis) Scientific name: Heteronarce mollis Lloyd, 1907 The Soft electric ray (Heteronarce mollis) is a marine fish of the family Narkidae. Native range: Western Indian Ocean, Gulf of Aden. Species factsScientific nameHeteronarce mollisFamilyNarkidae (Sleeper rays)OrderTorpediniformes (Electric rays)ClassElasmobranchii (Sharks and Rays)Maximum length22.5Depth range73–346 m (240–1135 ft)EnvironmentMarine; demersal; depth range 73 - 346 mClimateTropicalDistributionWestern Indian Ocean: Gulf of Aden.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming fecundity SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026