HomeFish encyclopediaRay-finned fishesHerringsHerrings, shads and sardinesPanama longfin herring Panama longfin herring (Odontognathus panamensis) Scientific name: Odontognathus panamensis Steindachner, 1876 The Panama longfin herring (Odontognathus panamensis) is a brackish-water fish of the family Clupeidae. Native range: Eastern Central Pacific, El Salvador to Panama. BiologyDorsal spines (total): 0; Anal spines: 0; Anal soft rays: 61 - 68. Belly with an uninterrupted keel of about 29 or 30 scutes, the outer edges of the scutes distinctly serrated. Upper jaw broad at midpoint, tapering posteriorly, the tip reaching or surpassing the gill opening; no hypo-maxilla. Pectoral fins large; dorsal fin rather small, set far back on body; anal fin long.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOdontognathus panamensisFamilyClupeidae (Herrings, shads and sardines)OrderClupeiformes (Herrings)ClassActinopterygii (Ray-finned fishes)Maximum length17.0Common length12.0EnvironmentMarine; brackish; pelagic-neriticClimateTropicalDistributionEastern Central Pacific: El Salvador to Panama.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: subsistence fisheriesResilienceHigh, 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