HomeFish encyclopediaRay-finned fishesHerringsHerrings, shads and sardinesBluntnosed sawtooth pellonuline Bluntnosed sawtooth pellonuline (Potamothrissa obtusirostris) Scientific name: Potamothrissa obtusirostris Boulenger, 1909 The Bluntnosed sawtooth pellonuline (Potamothrissa obtusirostris) is a freshwater fish of the family Clupeidae. Native range: Africa, Middle and Upper Congo system, i.e. northern and eastern tributaries. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 12-18; Anal spines: 0; Anal soft rays: 16 - 27. Body slender. Pre-pelvic scutes not strongly keeled, beginning under or just behind base of last pectoral fin ray, 7 to 10 + 10 to 12. Snout rounded; lower jaw not projecting, exactly meeting tip of upper when mouth closed, deepest at mid-point, with small saw-like teeth on each side; pre-maxillae with small teeth pointing downward; maxilla very slender; second supra-maxilla very smallSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePotamothrissa obtusirostrisFamilyClupeidae (Herrings, shads and sardines)OrderClupeiformes (Herrings)ClassActinopterygii (Ray-finned fishes)Maximum length6.0EnvironmentFreshwater; pelagicClimateTropicalDistributionAfrica: Middle and Upper Congo system, i.e. northern and eastern tributaries.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