HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsFlatjaw minnow Flatjaw minnow (Tampichthys mandibularis) Scientific name: Tampichthys mandibularis Contreras-Balderas & Verduzco-Mart?nez, 1977 The Flatjaw minnow (Tampichthys mandibularis) is a freshwater fish of the family Cyprinidae. Native range: Central America, Mexico. Species factsScientific nameTampichthys mandibularisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length5.2Common length4.2EnvironmentFreshwater; benthopelagicClimateTropicalDistributionCentral America: Mexico.Conservation status (IUCN)Critically Endangered (CR) (A2ce, B1+2abc, C2a)Threat to humansHarmlessResilienceHigh, 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