HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsPoachersSouthern spearnose poacher Southern spearnose poacher (Agonopsis sterletus) Scientific name: Agonopsis sterletus Gilbert, 1898 The Southern spearnose poacher (Agonopsis sterletus) is a marine fish of the family Agonidae. Native range: Eastern Central Pacific, San Simeon in central California, USA to central Baja California, Mexico. Species factsScientific nameAgonopsis sterletusFamilyAgonidae (Poachers)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Depth range42–91 m (138–299 ft)EnvironmentMarine; demersal; depth range 42 - 91 mClimateSubtropicalDistributionEastern Central Pacific: San Simeon in central California, USA to central Baja California, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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