HomeFish encyclopediaRay-finned fishesTarpons and TenpoundersTenpoundersPacific ladyfish Pacific ladyfish (Elops affinis) Scientific name: Elops affinis Regan, 1909 The Pacific ladyfish (Elops affinis) is a brackish-water fish of the family Elopidae. Native range: Eastern Pacific, Mandalay Beach, southern California, USA to Peru, including the Gulf of California. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 20-27; Anal spines: 0; Anal soft rays: 12 - 18; Vertebrae: 78 - 82. Body slender and elongate; mouth large and terminal; bony plate present between branches of lower jaw; branchiostegal rays very numerous (25 to 35); fins lacking spines; lower branch of first gill arch with 16 to 20 gill rakers; scales very small, 100 to 120 in the lateral line; back dark blue-green to light brown; flanks silvery with slight yellow highlights; fins slightly yellowish. Caudal rays: principal (10+8-9), procurrent (upper:8, lower: 8) Branchiostegal rays: 23-35Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameElops affinisFamilyElopidae (Tenpounders)OrderElopiformes (Tarpons and Tenpounders)ClassActinopterygii (Ray-finned fishes)Maximum length91.0Common length50.0Depth range0–8 m (0–26 ft)EnvironmentMarine; brackish; pelagic-neritic; oceanodromous; depth range 0 - 8 mClimateSubtropicalDistributionEastern Pacific: Mandalay Beach, southern California, USA to Peru, including the Gulf of California.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: minor commercial; gamefish: yes SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026