HomeFish encyclopediaRay-finned fishesPerch-like fishParrotfishesLoosetooth parrotfish Loosetooth parrotfish (Nicholsina denticulata) Scientific name: Nicholsina denticulata Evermann & Radcliffe, 1917 The Loosetooth parrotfish (Nicholsina denticulata) is a marine fish of the family Scaridae. Native range: Eastern Pacific, Gulf of California to Ecuador and northern Peru. Also from the Galapagos Islands. BiologyAbundant in shallow coastal areas, especially in rocky coasts with macroalgae. May be solitary or swim in loose schools. Feeds by scraping or breaking off chunks of the reef and digest the algae that grows within, or they feed directly on algae.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNicholsina denticulataFamilyScaridae (Parrotfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length32.0Common length20.0Depth range1–11 m (3–36 ft)EnvironmentMarine; reef-associated; depth range 1 - 11 mClimateTropicalDistributionEastern Pacific: Gulf of California to Ecuador and northern Peru. Also from the Galapagos Islands.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, 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