HomeFish encyclopediaRay-finned fishesPerch-like fishCales and weed-whitingsButterfish Butterfish (Odax pullus) Scientific name: Odax pullus Forster, 1801 The Butterfish (Odax pullus) is a marine fish of the family Odacidae. Native range: Southwest Pacific, New Zealand and probably Australia. BiologyInhabits shallow inshore waters where rocks and brown algae are abundant. Browses on algae and feeds mainly on the brown alga Carpophyllum.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOdax pullusFamilyOdacidae (Cales and weed-whitings)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length40.0EnvironmentMarine; demersalClimateSubtropicalDistributionSouthwest Pacific: New Zealand and probably Australia.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: minor commercialResilienceLow, minimum population doubling time 4.5 - 14 years (tmax=11; k=0.23) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026