HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSearobinsSpiny searobin Spiny searobin (Prionotus alatus) Scientific name: Prionotus alatus Goode & Bean, 1883 The Spiny searobin (Prionotus alatus) is a brackish-water fish of the family Triglidae. Species factsScientific namePrionotus alatusFamilyTriglidae (Searobins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length17.5Depth range35–180 m (115–591 ft)EnvironmentMarine; brackish; demersal; depth range 35 - 180 mClimateSubtropicalDistributionWestern Atlantic: Virginia to southern Florida in USA and Bahamas; eastern Gulf of Mexico to Louisiana in USA and south to Campeche in Mexico. Also in Caribbean Sea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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