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TABLE 2. Native fishes of the Colorado River Basin, including their current federal legal status and historic distribution/location in the basin (Evermann and Rutter 1895; Ellis 1914; Beckman 1952; Koster 1957; Miller 1959,1961,1972; Sigler and Miller 1963; Miller and Lowe 1964; Rinne 1976; Bailey et al. 1970; Baxter and Simon 1970; Rinne and Minckley 1970; Deacon and Bradley 1972; Minckley 1973, 1979; Holden and Stalnaker 1975; Cross 1976; Moyle 1976; Joseph et al. 1977; Behnke 1979; Deacon et al. 1979; Hubbard 1980; Lee et al. 1980; Molles 1980; Robins et al. 1980; Carothers and Minckley 1981; Parenti 1981; Behnke et al. 1982; Tyus et al. 1982; U. S. Department of the Interior 1982, 1983, 1985a-e, 1986a-e, 1987; Behnke and Benson 1983; Williams et al. 1985; Minckley et al. 1986; Stanford and Ward 1986c; Johnson 1987). X - indicates species has occurred;? - indicates presence questionable; * - indicates endemic genera, species, or subspecies. cont'd Species Federal legal statusC Historic distribution by major river drainage" Upper basinb Lower basinb CO GR SJ CO VR LC BW GI Historic location Bony tail G. *elegans E X X X X X X larger river channels of the basin; wide- spread Colorado roundtail chub G. *robusta robusta N X X X X X medium to large-sized river channels ofthe basin; widespread No common name G. *r. grahamid Pahranagat roundtail chub G. *r. jordani U X status questionable; Gila River drainage E X restricted to springs and spring-streams of Pahranagat Valley, pluvial White River, NV Virgin river roundtail chub G. *r. seminuda Moapa roundtail chub G. *r. robusta spp. e Gila chub G. *intermediaf P-E X restricted to Virgin River, AZ-NV-UT U X restricted to Moapa River, NV U X restricted to upper Gila River drainage, AZ-NM White River spinedace *Lepidomeda albivallis E Pahranagat spined ace * L. altivelis 0 X restricted to pluvial White River, NV X restricted to cool springs and spring- streams of Pahranagat Valley, Virgin River drainage, NV Virgin river spinedace *L. mollispinis mollispinis U X restricted to Virgin River drainage, AZ- NV-UT Meadow Valley spinedace *L. m. pratensis P-T X restricted to Meadow Valley Wash, Virgin River drainage, NV Little Colorado spinedace * L. vittata P- T X restricted to upper Little Colorado River drainage, AZ Spikedace *Meda jitlgida T X moderately restricted to upper Gila River drainage, AZ-NM Moapa dace *Moapa coriacea E X highly restricted to thermal springs of Moapa River, NV W oundfin *Plagopterus argentis- simus E X X X lower and middle sections of Lower Main- stem Colorado, Virgin, Salt, and Gila rivers 224