HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSearobinsRyukyu gurnard Ryukyu gurnard (Pterygotrigla ryukyuensis) Scientific name: Pterygotrigla ryukyuensis Matsubara & Hiyama, 1932 The Ryukyu gurnard (Pterygotrigla ryukyuensis) is a marine fish of the family Triglidae. Native range: Indo-West Pacific, Ryukyu Islands to the South China Sea, and Indonesia. Also reported from northwestern Australia and the Arafura Sea. BiologyNape with no scales; breast and belly scaled. Preserved specimens uniformly tan. No spots on dorsum.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePterygotrigla ryukyuensisFamilyTriglidae (Searobins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Depth range500 m (1640 ft)EnvironmentMarine; demersal; depth range ? - 500 mClimateDeep-waterDistributionIndo-West Pacific: Ryukyu Islands to the South China Sea, and Indonesia. Also reported from northwestern Australia and the Arafura Sea.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