HomeFish encyclopediaRay-finned fishesSilversidesSailfin silversidesMarine sailfin silverside Marine sailfin silverside (Kalyptatherina helodes) Scientific name: Kalyptatherina helodes Ivantsoff & Allen, 1984 The Marine sailfin silverside (Kalyptatherina helodes) is a brackish-water fish of the family Telmatherinidae. Native range: Western Central Pacific, known only from Misool and Bantana Islands north west of Irian Jaya, Indonesia. BiologyDorsal spines: 3 - 5; Dorsal soft rays: 6-9; Anal spines: 1; Anal soft rays: 11 - 14. Second dorsal fin lacking spine.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameKalyptatherina helodesFamilyTelmatherinidae (Sailfin silversides)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length4.5Depth range0–1 m (0–3 ft)EnvironmentMarine; brackish; pelagic-neritic; non-migratory; depth range 0 - 1 mClimateTropicalDistributionWestern Central Pacific: known only from Misool and Bantana Islands north west of Irian Jaya, Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026