HomeFish encyclopediaRay-finned fishesGrinnersLizardfishesLighthouse lizardfish Lighthouse lizardfish (Synodus jaculum) Scientific name: Synodus jaculum Russell & Cressey, 1979 The Lighthouse lizardfish (Synodus jaculum) is a marine fish of the family Synodontidae. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 11-13; Anal spines: 0; Anal soft rays: 8 - 10. Body brownish above, with dark brown saddle blotches; fins transparent, with faint brown spots on dorsal and caudal rays. Prominent black blotch on its caudal peduncle.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSynodus jaculumFamilySynodontidae (Lizardfishes)OrderAulopiformes (Grinners)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Common length10.0Depth range2–100 m (7–328 ft)EnvironmentMarine; reef-associated; depth range 2 - 100 mClimateTropicalDistributionIndo-Pacific: East Africa to the Line, Marquesan, and Society islands, north to the Izu Islands (Japan), south to New South Wales (Australia); Palau to Kosrae in Micronesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, 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