HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesBristlemouthsRebains' portholefish Rebains' portholefish (Diplophos rebainsi) Scientific name: Diplophos rebainsi Krefft & Parin, 1972 The Rebains' portholefish (Diplophos rebainsi) is a marine fish of the family Gonostomatidae. Native range: Southwest Pacific, New Zealand. Southeast Pacific: Chile. South Atlantic. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 11-13; Anal spines: 0; Anal soft rays: 47 - 53. Head grey to black-brown in color; sides of body pale yellow with darker dotted pigmentation; fins colorless except caudal with melanophores and dorsal with light pigmentation.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDiplophos rebainsiFamilyGonostomatidae (Bristlemouths)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length25.0Depth range900–2000 m (2953–6562 ft)EnvironmentMarine; bathypelagic; depth range 900 - 2000 mClimateDeep-waterDistributionSouthwest Pacific: New Zealand. Southeast Pacific: Chile. South Atlantic.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