HomeMarine aquarium fishTriggers, puffers & boxfishHalfmoon triggerfish Halfmoon triggerfish (Sufflamen chrysopterum) Scientific name: Sufflamen chrysopterum Bloch & Schneider, 1801 The Halfmoon triggerfish (Sufflamen chrysopterum) is a marine fish of the family Balistidae. BiologyDorsal spines (total): 3; Dorsal soft rays (total): 26-28; Anal spines: 0; Anal soft rays: 23 - 26. Juveniles dark brown above, white below. Adult variable in color; the bar running through the pectoral base can either be yellow or black, and some individuals may be largely yellowish posteriorly.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSufflamen chrysopterumFamilyBalistidae (Triggerfishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Depth range1–30 m (3–98 ft)EnvironmentMarine; reef-associated; depth range 1 - 30 mClimateTropicalDistributionIndo-West Pacific: East Africa south to the Chalumna River, South Africa and east to Samoa, north to southern Japan, south to Lord Howe Island. Replaced by closely related Sufflamen albicaudatus in the Red Sea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More triggers, puffers & boxfishWhite-banded triggerfishRhinecanthus aculeatusWedge-tail triggerfishRhinecanthus rectangulusPinktail triggerfishMelichthys viduaWhitespotted filefishCantherhines dumeriliiOrange-lined triggerfishBalistapus undulatusYellowmargin triggerfishPseudobalistes flavimarginatusSee 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