2950 Richardsonius egregius (Girard, 1858) Leuciscidae Minnows Pogonichthyinae Cypriniformes Teleostei Lahontan redside North America: Lahontan and other interior basins in northern Nevada and northern California, USA including Humboldt, Walker, Carson, Truckee, Susan, Quinn and Reese River systems; Walker, Tahoe and Pyramid Lakes. Introduced elsewhere, including upper Sacramento River systems in California. UBC 570070 40 N 118 W Richardsonius egregius AMNH 46150 Richardsonius egregius AMNH 47818 1951 Richardsonius egregius AMNH 47819 1951 Richardsonius egregius AMNH 64563 1968 Richardsonius egregius AMNH 46235 1971 Richardsonius egregius