HomeFish encyclopediaRay-finned fishesPuffers and FilefishesPuffersHairy puffer Hairy puffer (Tetraodon baileyi) Scientific name: Tetraodon baileyi Sontirat, 1989 The Hairy puffer (Tetraodon baileyi) is a freshwater fish of the family Tetraodontidae. Native range: Asia, Mekong basin. BiologyDorsal spines (total): 0; Anal spines: 0. Head and body usually sparsely or densely covered with epidermal outgrowths or cirri (may be missing in specimens smaller than 3 cm SL); body entirely without scales; abdomen of live fish golden or orange with no other markings.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTetraodon baileyiFamilyTetraodontidae (Puffers)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length12.0EnvironmentFreshwater; demersalClimateTropicalDistributionAsia: Mekong basin.Conservation status (IUCN)Vulnerable (VU) (A2ce)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