HomeFish encyclopediaLampreysLampreysLampreysKern brook lamprey Kern brook lamprey (Lampetra hubbsi) Scientific name: Lampetra hubbsi Vladykov & Kott, 1976 The Kern brook lamprey (Lampetra hubbsi) is a freshwater fish of the family Petromyzontidae. Native range: North America, known only from Friant-Kern Canal in Kern County and Merced River in Merced County, California, USA. BiologyDorsal spines: 0; Anal spines: 0. Four pairs of lateral tooth plates; supra oral plate with two sharp cuspsSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLampetra hubbsiFamilyPetromyzontidae (Lampreys)OrderPetromyzontiformes (Lampreys)ClassCephalaspidomorphi (Lampreys)Maximum length14.0Common length12.9EnvironmentFreshwater; demersal; non-migratoryClimateTemperateDistributionNorth America: known only from Friant-Kern Canal in Kern County and Merced River in Merced County, California, USA.Conservation status (IUCN)Lower Risk: near threatened (LR/nt)Threat to humansHarmlessUsesFisheries: of no interestResilienceMedium, 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