HomeFish encyclopediaRay-finned fishesCarpsSuckersCahita sucker Cahita sucker (Catostomus cahita) Scientific name: Catostomus cahita Siebert & Minckley, 1986 The Cahita sucker (Catostomus cahita) is a freshwater fish of the family Catostomidae. Native range: North America, Yaqui to Mayo rivers in northwestern Mexico. Species factsScientific nameCatostomus cahitaFamilyCatostomidae (Suckers)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)EnvironmentFreshwater; demersalClimateTropicalDistributionNorth America: Yaqui to Mayo rivers in northwestern Mexico.Conservation status (IUCN)Vulnerable (VU) (A1a, B1+2ac)Threat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 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