HomeFish encyclopediaRay-finned fishesPerch-like fishSlimys, slipmouths or ponyfishesSlender ponyfish Slender ponyfish (Equulites elongatus) Scientific name: Equulites elongatus G?nther, 1874 The Slender ponyfish (Equulites elongatus) is a marine fish of the family Leiognathidae. Native range: Indo-West Pacific, east coast of Africa and off southwest India; eastwards to the Philippines; north to Japan; south to Australia. BiologyDorsal spines (total): 8; Dorsal soft rays (total): 16; Anal spines: 3; Anal soft rays: 14. Body silvery and mottled green and dark on back. Head without scales; cheek and breast covered with small scales; nuchal spine present; protracted mouth pointing downward.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEquulites elongatusFamilyLeiognathidae (Slimys, slipmouths or ponyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length12.0Common length8.0Depth range20–100 m (66–328 ft)EnvironmentMarine; demersal; depth range 20 - 100 mClimateTropicalDistributionIndo-West Pacific: east coast of Africa and off southwest India; eastwards to the Philippines; north to Japan; south to Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, minimum population doubling time less than 15 months (K=0.80-1.40) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026