HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsTwospot cusk Twospot cusk (Neobythites bimaculatus) Scientific name: Neobythites bimaculatus Nielsen, 1997 The Twospot cusk (Neobythites bimaculatus) is a marine fish of the family Ophidiidae. Native range: Western Central Pacific, off New Caledonia and Australia. BiologyDorsal soft rays (total): 100-105; Anal soft rays: 86 - 92; Vertebrae: 61 - 62. Two spines on hind margin of preoperculum, 10-12 long raker on anterior gill arch, six small pseudobranchial filaments, two ocelli placed on middle third of dorsal fin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNeobythites bimaculatusFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length17.0Depth range435–500 m (1427–1640 ft)EnvironmentMarine; bathydemersal; depth range 435 - 500 mClimateDeep-waterDistributionWestern Central Pacific: off New Caledonia and Australia.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026