HomeFish encyclopediaRay-finned fishesPuffers and FilefishesFilefishesPygmy filefish Pygmy filefish (Stephanolepis setifer) Scientific name: Stephanolepis setifer Bennett, 1831 The Pygmy filefish (Stephanolepis setifer) is a marine fish of the family Monacanthidae. Native range: Western Atlantic, Bermuda, North Carolina (USA), and northern Gulf of Mexico to southeastern Brazil. Indo-Pacific. BiologyDorsal spines (total): 2; Dorsal soft rays (total): 27-29; Anal spines: 0; Anal soft rays: 27 - 29. Profile from snout to origin of first dorsal spine nearly straight. No enlarged spines on caudal peduncle, but males with an elongate patch of bristle-like spinules.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameStephanolepis setiferFamilyMonacanthidae (Filefishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Common length10.0Depth range80 m (262 ft)EnvironmentMarine; reef-associated; depth range ? - 80 mClimateSubtropicalDistributionWestern Atlantic: Bermuda, North Carolina (USA), and northern Gulf of Mexico to southeastern Brazil. Indo-Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansReports of ciguatera poisoningUsesFisheries: subsistence fisheriesResilienceMedium, 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