HomeMarine aquarium fishTriggers, puffers & boxfishFantail filefish Fantail filefish (Pervagor spilosoma) Scientific name: Pervagor spilosoma Lay & Bennett, 1839 The Fantail filefish (Pervagor spilosoma) is a marine fish of the family Monacanthidae. Native range: Eastern Pacific, throughout the Hawaiian Islands, including the Leeward Group; rare in Johnston Island. BiologyDorsal spines (total): 1; Dorsal soft rays (total): 36-39; Anal spines: 0; Anal soft rays: 32 - 36. Head and breast bluish gray, body yellowish or white. Head with irregular, oblique dark lines merging with many closely packed spots on body; region of mouth plus the lips white. Caudal fin red to orange, with a black sub terminal band; soft dorsal and anal fins clear to yellowish. Pelvic rudiment large narrowly attached to blackish posterior margin of ventral flap. Scale spinulation on midbody somewhat longer, finer and more acute than other species; each scale with high transverse ridge; male scale ridge rugosities develop at about 75 mm SL.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePervagor spilosomaFamilyMonacanthidae (Filefishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length18.0Depth range6–730 m (20–2395 ft)EnvironmentMarine; reef-associated; depth range 6 - 730 mClimateTropicalDistributionEastern Pacific: throughout the Hawaiian Islands, including the Leeward Group; rare in Johnston Island.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More triggers, puffers & boxfishWhite-banded triggerfishRhinecanthus aculeatusRedtail filefishPervagor melanocephalusCaribbean sharpnose-pufferCanthigaster rostrataHoneycomb cowfishAcanthostracion polygoniusSpotted trunkfishLactophrys bicaudalisSargassum triggerfishXanthichthys ringensSee 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