HomeFish encyclopediaRay-finned fishesPerch-like fishSlimys, slipmouths or ponyfishesOblong ponyfish Oblong ponyfish (Leiognathus oblongus) Scientific name: Leiognathus oblongus Valenciennes, 1835 The Oblong ponyfish (Leiognathus oblongus) is a marine fish of the family Leiognathidae. Native range: Indo-Pacific, Red Sea to Zanzibar and the Indo-Malayan region. Species factsScientific nameLeiognathus oblongusFamilyLeiognathidae (Slimys, slipmouths or ponyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0EnvironmentMarine; pelagic-neriticClimateTropicalDistributionIndo-Pacific: Red Sea to Zanzibar and the Indo-Malayan region.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