HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSearobinsBighead searobin Bighead searobin (Prionotus tribulus) Scientific name: Prionotus tribulus Cuvier, 1829 The Bighead searobin (Prionotus tribulus) is a marine fish of the family Triglidae. BiologyVery common in bays. Young occur in estuaries.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePrionotus tribulusFamilyTriglidae (Searobins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length35.0EnvironmentMarine; demersalClimateSubtropicalDistributionWestern Atlantic: Chesapeake Bay to northern Florida and Gulf of Mexico from southern Florida to Texas, occasionally rounding Cape Sable to southeastern Florida in USA.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