HomeFish encyclopediaRay-finned fishesHerringsHerrings, shads and sardinesNigerian fangtooth pellonuline Nigerian fangtooth pellonuline (Odaxothrissa mento) Scientific name: Odaxothrissa mento Regan, 1917 The Nigerian fangtooth pellonuline (Odaxothrissa mento) is a freshwater fish of the family Clupeidae. Native range: Africa, freshwaters (lower parts of Volta and Niger basins, also lower Benue and rivers of Cameroon; apparently not in Congo system). BiologyDorsal spines (total): 0; Dorsal soft rays (total): 12-18; Anal spines: 0; Anal soft rays: 16 - 21; Vertebrae: 42 - 44. Body moderate, sometimes deep. Pre-pectoral scutes present (13-18 prepelvic with 1-2 before the base of the 1st pectoral ray; 8-10 post). First pectoral scute as long as or smaller than others lacking ascending arms. Lower jaw strongly projecting, with strong canines at symphysis. Lower gill rakers short (less than corresponding gill filaments). Silver stripe along flank. Differs from C. ansorgii by its fewer gill rakers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOdaxothrissa mentoFamilyClupeidae (Herrings, shads and sardines)OrderClupeiformes (Herrings)ClassActinopterygii (Ray-finned fishes)Maximum length13.0EnvironmentFreshwater; pelagic; potamodromousClimateTropicalDistributionAfrica: freshwaters (lower parts of Volta and Niger basins, also lower Benue and rivers of Cameroon; apparently not in Congo system).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