 Ramba uchiverenga ndima iyi - Hove dzinonzi Cutthroat trout dzakapiwa zita rokuti Salmo clarkii mukuremekedza William Clark, uyo akatungamirirawo rwendo rwacho muna 18041806. Rimwe remabasa aLewis naClark raiva rokurondedzera mhuka nemiti zvavakasangana nazvo pavaifamba. Rudzi rwemhando ye S. clarki rwakatsanangurwa naJohn Richardson kubva murwizi rweRwizi rweColumbia rwezasi, rwakazivikanwa se Katpootl, iyo ingangove yaive Rwizi rweLewis sezvo paive nemusha weMultnomah wezita rakafanana pamusangano. Rudzi urwu rwaiva rudzi rwemhuka inonzi coastal cutthroat. Muna 1989, zvidzidzo zve morphological uye genetics zvakaitwa naGerald R. Smith, mutariri wehove paMuseum of Zoology, naRalph F. Stearley, mukwikwidzi wechiremba paMuseum of Paleontology University of Michigan vakaratidza kuti trout yePacific basin yakanga iri pedyo nePacific salmon Oncorhynchus mhando kupfuura Salmosbrown trout S. trutta kana Atlantic salmon S. salar yeAtlantic basin. Nokudaro, muna 1989, zviremera zvokutonga zvakatamisa rainbow, cutthroat uye dzimwe trout dzePacific basin kupinda mu genus Oncorhynchus. 