HomeMarine aquarium fishClownfish & damselfishSaddleback clownfish Saddleback clownfish (Amphiprion polymnus) Scientific name: Amphiprion polymnus Linnaeus, 1758 The Saddleback clownfish (Amphiprion polymnus) is a marine fish of the family Pomacentridae. BiologyDorsal spines (total): 10 - 11; Dorsal soft rays (total): 16-18; Anal spines: 2; Anal soft rays: 12 - 14. Distinguished by the third white band on the tail that is missing or as a saddle-like marking in A. sebae. Some geographical variations and in PNG often with much orange ventrally.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAmphiprion polymnusFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Depth range2–30 m (7–98 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 2 - 30 mClimateTropicalDistributionWestern Pacific: Ryukyu Islands, China, Viet Nam, Taiwan, Gulf of Thailand, Indonesia, Philippines, Australia (Northern Territory, Gulf of Carpentaria), New Guinea, New Britain, and Solomon Islands. Recorded from Singapore.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More clownfish & damselfishHalf-and-half chromisChromis iomelasGulf damselfishPristotis obtusirostrisFalse-eye sergeantAbudefduf sparoidesSkunk clownfishAmphiprion akallopisosThreespot chromisChromis veraterHawaiian chromisChromis ovalisSee all clownfish & damselfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026