SpeciesYellowstone Cutthroat TroutNative • Trout FamilyBrook TroutIntroduced • Trout FamilyRainbow TroutIntroduced • Trout FamilyMountain WhitefishNative • Trout FamilyMottled SculpinNative • Sculpin FamilyWestslope Cutthroat TroutNative • Trout FamilyBurbotNative • Codfish Family