HomeFish encyclopediaRay-finned fishesLightfishes and DragonfishesMarine hatchetfishesBrilliant pearlside Brilliant pearlside (Argyripnus iridescens) Scientific name: Argyripnus iridescens McCulloch, 1926 The Brilliant pearlside (Argyripnus iridescens) is a marine fish of the family Sternoptychidae. Native range: Southwest Pacific. Species factsScientific nameArgyripnus iridescensFamilySternoptychidae (Marine hatchetfishes)OrderStomiiformes (Lightfishes and Dragonfishes)ClassActinopterygii (Ray-finned fishes)Maximum length14.0EnvironmentMarine; bathypelagicClimateDeep-waterDistributionSouthwest Pacific.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