HomeFish encyclopediaRay-finned fishesEels and MoraysMoray eelsHighfin moray Highfin moray (Gymnothorax pseudothyrsoideus) Scientific name: Gymnothorax pseudothyrsoideus Bleeker, 1852 The Highfin moray (Gymnothorax pseudothyrsoideus) is a marine fish of the family Muraenidae. Native range: Indo-West Pacific, Oman and India to the western Pacific. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Color pale yellowish; dark brown spots clustering to form larger ones in about 4 irregular rows along the body. Margin of fins white in juveniles; reduced to tip of tail in adults. Vertebrae 127-135.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGymnothorax pseudothyrsoideusFamilyMuraenidae (Moray eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length80.0EnvironmentMarine; reef-associatedClimateTropicalDistributionIndo-West Pacific: Oman and India to the western Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026