HomeFish encyclopediaRay-finned fishesPerch-like fishRoosterfishRoosterfish Roosterfish (Nematistius pectoralis) Scientific name: Nematistius pectoralis Gill, 1862 The Roosterfish (Nematistius pectoralis) is a marine fish of the family Nematistiidae. Native range: Eastern Pacific, San Clemente in southern California, USA to Peru, including the Galapagos Islands; rare north of Baja California, Mexico. BiologyInhabits shallow inshore areas, frequents sandy shores along beaches. Juveniles occurs in tide pools. Exploited on a local level and marketed fresh.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNematistius pectoralisFamilyNematistiidae (Roosterfish)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length163Common length60.0EnvironmentMarine; demersalClimateSubtropicalDistributionEastern Pacific: San Clemente in southern California, USA to Peru, including the Galapagos Islands; rare north of Baja California, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; gamefish: yes SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026