HomeFish encyclopediaRay-finned fishesPerch-like fishButterflyfishesSmith's butterflyfish Smith's butterflyfish (Chaetodon smithi) Scientific name: Chaetodon smithi Randall, 1975 The Smith's butterflyfish (Chaetodon smithi) is a marine fish of the family Chaetodontidae. Native range: Eastern Pacific, known only from Pitcairn, Rapa, and Ilots de Bass (Marotiri). Photographed from Easter Island. BiologyAbundant in algal covered rocky reefs often in large aggregations. A mid-water plankton feeder. Oviparous. Form pairs during breeding.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChaetodon smithiFamilyChaetodontidae (Butterflyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length19.0Depth range10–30 m (33–98 ft)EnvironmentMarine; reef-associated; depth range 10 - 30 mClimateSubtropicalDistributionEastern Pacific: known only from Pitcairn, Rapa, and Ilots de Bass (Marotiri). Photographed from Easter Island.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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