HomeFish encyclopediaRay-finned fishesPerch-like fishDragonetsSmallhead dragonet Smallhead dragonet (Callionymus erythraeus) Scientific name: Callionymus erythraeus Ninni, 1934 The Smallhead dragonet (Callionymus erythraeus) is a marine fish of the family Callionymidae. Native range: Western Indian Ocean, Red Sea, Persian Gulf, and southern India. BiologyDorsal spines (total): 4; Dorsal soft rays (total): 9; Anal spines: 0; Anal soft rays: 8. Caudal fin rounded.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCallionymus erythraeusFamilyCallionymidae (Dragonets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0Depth range1–10 m (3–33 ft)EnvironmentMarine; demersal; depth range 1 - 10 mClimateTropicalDistributionWestern Indian Ocean: Red Sea, Persian Gulf, and southern India.Conservation status (IUCN)Not EvaluatedThreat 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