HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsIncomati chiselmouth Incomati chiselmouth (Varicorhinus nelspruitensis) Scientific name: Varicorhinus nelspruitensis Gilchrist & Thompson, 1911 The Incomati chiselmouth (Varicorhinus nelspruitensis) is a freshwater fish of the family Cyprinidae. Native range: Africa, rocky areas of the Incomati (Mozambique) and Pongolo (South Africa) Rivers systems. BiologyOccasionally caught by anglers. Favors cool rocky flowing-water habitats, Occurs in schools of up to 50-100 fishes. Scrapes `aufwuchs' and benthic invertebrates from rocks. Breeds in summer.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameVaricorhinus nelspruitensisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length32.0EnvironmentFreshwater; benthopelagicClimateSubtropicalDistributionAfrica: rocky areas of the Incomati (Mozambique) and Pongolo (South Africa) Rivers systems.Conservation status (IUCN)Near Threatened (NT)Threat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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