HomeMarine aquarium fishTriggers, puffers & boxfishPlanehead filefish Planehead filefish (Stephanolepis hispidus) Scientific name: Stephanolepis hispidus Linnaeus, 1766 The Planehead filefish (Stephanolepis hispidus) is a marine fish of the family Monacanthidae. Native range: Western Atlantic, Nova Scotia (Canada), Bermuda, and northern Gulf of Mexico to Uruguay. Eastern Atlantic: Canary Islands to Angola. BiologyFound on sand or mud bottoms. Associated with Sargassum. Adults feed on benthic invertebrates. Edible but generally rejected by fishers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameStephanolepis hispidusFamilyMonacanthidae (Filefishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length27.5Depth range0–293 m (0–961 ft)EnvironmentMarine; reef-associated; depth range 0 - 293 mClimateSubtropicalDistributionWestern Atlantic: Nova Scotia (Canada), Bermuda, and northern Gulf of Mexico to Uruguay. Eastern Atlantic: Canary Islands to Angola.Conservation status (IUCN)Not EvaluatedThreat to humansReports of ciguatera poisoningUsesFisheries: subsistence fisheries; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (K=0.37;) More triggers, puffers & boxfishWhite-banded triggerfishRhinecanthus aculeatusFringed filefishMonacanthus ciliatusRedtail triggerfishXanthichthys mentoSargassum triggerfishXanthichthys ringensSpotted trunkfishLactophrys bicaudalisAmerican whitespotted filefishCantherhines macrocerusSee all triggers, puffers & boxfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026