HomeFish encyclopediaRay-finned fishesPerch-like fishSmelt-whitingsLarge-headed sillago Large-headed sillago (Sillago megacephalus) Scientific name: Sillago megacephalus Lin, 1933 The Large-headed sillago (Sillago megacephalus) is a marine fish of the family Sillaginidae. Native range: Northwest Pacific, Hainan, China. This species is possibly a junior synonym of Sillago sihama. BiologyDorsal spines (total): 12; Dorsal soft rays (total): 22; Anal spines: 2; Anal soft rays: 23. Very similar to S. sihama but with the head length 33% of standard length.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSillago megacephalusFamilySillaginidae (Smelt-whitings)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.8EnvironmentMarine; demersal; non-migratoryClimateTropicalDistributionNorthwest Pacific: Hainan, China. This species is possibly a junior synonym of Sillago sihama.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