Table 2. Proposed changes to the taxonomy of Pantosteus species.

original taxonomy	changed taxonomy	distribution
Pantosteus clarkii	unchanged	Lower Colorado River Basin
P. columbianus	unchanged	Columbia River Basin
P. discobolus	P. discobolus	Colorado River Basin
P. discobolus	P. virescens	northern Bonneville and upper Snake River basins
P. discobolus jarrovii	unchanged	upper Little Colorado River
P. nebuliferus	unchanged	Nazas and Aguanaval basins
P. platyrhynchus	P. bondi	Columbia River Basin (minus upper Snake)
P. platyrhynchus	P. jordani	Missouri River Basin
P. platyrhynchus	P. lahontan	Lahontan Basin
P. platyrhynchus	P. platyrhynchus	Bonneville, upper Snake and Green River basins
P. plebeius	unchanged	Grande, Guzman, Conchos, and Yaqui basins
P. santaanae	unchanged	Los Angeles region