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<br />160 <br /> <br />VALDEZ AND MUTH <br /> <br />Table I.-Common and scientific names, legal status, current distribution, and relative abundance of native fish of <br />the upper Colorado River basin. <br /> <br />Species Status' <br /> <br />Cyprinidae (minnows) <br />Colorado pikeminnow Ptychocheilus lucius EN <br />Girard, 1856 En-NM <br />Th-CO <br />Sp-UT <br /> <br />humpback chub Gila cypha <br />Miller, 1946 <br /> <br />EN <br />Th-CO <br />Sp-UT <br /> <br />EN <br />Ex-NM <br />En-CO <br />Sp-UT <br /> <br />bonyrail G. elegans <br />Baird and Girard, 1853 <br /> <br />roundtail chub G. robusta <br />Baird and Girard, 1853 <br /> <br />En-NM <br />Co-CO, <br />NM, UT, <br />WY <br /> <br />speckled dace Rhinichthys osculus <br />Girard, 1856 <br /> <br />Kendall Warm Springs dace <br />R. o. thermal is <br />(Hubbs and Kuhne, 1937) <br /> <br />EN <br />En-WY <br /> <br />Catostomidae (suckers) <br />razorback sucker Xyrauchen texanus <br />(Abbott, 1860) <br /> <br />EN <br />En-CO <br />Sp-UT <br /> <br />flannelmouth sucker Catostomus latipinnis Co-CO, <br />Baird and Girard, 1853 NM, UT <br />WY <br /> <br />bluehead sucker C. discobolus <br />Cope 1871 <br /> <br />Co-CO <br />NM, UT <br />WY <br /> <br />mountain sucker C. platyrhynchus <br />(Cope, 1874) <br /> <br />Sp-CO <br /> <br />Cottidae (sculpins) <br />mottled sculpin Cottus bairdii Girard, 1850 <br /> <br />Paiute sculpin (Cottus beldingii) <br />Eigenmann, 1891 <br /> <br />Salmonidae (trout and salmon) <br />mountain whitefish <br />Prosopium williamsoni (Girard, 1856) <br /> <br />Distribution and abundance <br /> <br />Found as two populations: Green River and upper <br />Colorado River subbasins. Wild fish incidental in <br />Sanjuan River. <br /> <br />Found as five populations: Black <br />Rocks, Westwater, Cataract, Desolation/Gray, <br /> <br />Yampa canyons <br /> <br />Wild fish incidental; fewer than 15 specimens from <br />Black Rocks, Cataract and Desolation/Gray <br />canyons since 1980 <br /> <br />Common to locally abundant in mid-elevation <br /> <br />fI vers <br /> <br />Common to abundant throughout <br /> <br />Found as single population only in Kendall Warm <br />Springs Creek, Wyoming <br /> <br />Wild fish incidental to rare in upper Colorado, <br />Gunnison, Green, Yampa, Duchesne, San Juan <br />fivers <br /> <br />Common to abundant in mid- and low elevation <br /> <br />fivers <br /> <br />Common to abundant in rocky riffles of mid- <br />elevation rivers <br /> <br />Common in high and mid-elevation streams <br /> <br />Common to abundant in mid- and high elevation <br />streams and rivers <br />Uncommon in mid- and high elevation streams <br />and rivers <br /> <br />Sf-CO, UT, Common to abundant in high elevation streams <br />WY <br />