HomeFish encyclopediaRay-finned fishesPuffers and FilefishesPuffersLongnose puffer Longnose puffer (Sphoeroides lobatus) Scientific name: Sphoeroides lobatus Steindachner, 1870 The Longnose puffer (Sphoeroides lobatus) is a brackish-water fish of the family Tetraodontidae. Native range: Eastern Pacific, California, USA to Chile, including the Galapagos Islands. BiologyCommonly caught in bays, estuaries and shallow coastal areas.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSphoeroides lobatusFamilyTetraodontidae (Puffers)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length25.0EnvironmentMarine; brackish; demersalClimateSubtropicalDistributionEastern Pacific: California, USA to Chile, including the Galapagos Islands.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