Species that contain: Richardsonius and egregius [ 5 ] records

ardesiaca, Gila Cope [E. D.] in Cope & Yarrow 1875:660, Pl. 30 (figs. 1, 1a-b) [Engineer Department, United States Army, Report upon the Geographical and Geological Explorations and Surveys west of the one hundredth Meridian v. 5 (Zoology) Chapter 6; ref. 968] Locality unknown [= probably Nevada or Arizona, U.S.A.]. Holotype (unique): USNM 16974. •Synonym of Richardsonius egregius (Girard 1858) -- (La Rivers 1994:399 [ref. 23389], Gilbert 1998:42 [ref. 23395]). Current status: Synonym of Richardsonius egregius (Girard 1858). Leuciscidae: Pogonichthyinae. Habitat: freshwater.

clevelandi, Phoxinus (Tigoma) Eigenmann [C. H.] & Eigenmann [R. S.] 1889:149 [12] [West American Scientist v. 6 (no. 49) (for Nov. 1889); ref. 12402] Aetna Springs, Napa County, California, U.S.A. [locality probably erroneous]. Syntypes: BMNH 1891.5.19.196 (1), CAS-SU 630 (1), USNM 41923 (1). Type catalog: Böhlke 1953:36 [ref. 12291], Gilbert 1998:61 [ref. 23395]. On p. 12 of separate. •Synonym of Richardsonius egregius (Girard 1858) -- (La Rivers 1994:399 [ref. 23389], Gilbert 1998:61 [ref. 23395]). Current status: Synonym of Richardsonius egregius (Girard 1858). Leuciscidae: Pogonichthyinae. Habitat: freshwater.

egregia, Tigoma Girard [C. F.] 1858:291 [General report upon zoology of the several Pacific railroad routes, 1857; ref. 4911] Humboldt River [from USNM records], near Imlay, Pershing County, northern Nevada, U.S.A. Holotype (unique): USNM 226 (plus pair of pharyngeal bones as #2780). Type catalog: Gilbert 1998:74 [ref. 23395]. •Valid as Richardsonius egregius (Girard 1858) -- (Lee et al. 1980:359 [ref. 22416], Page & Burr 1991:71 [ref. 18983], Gold 1994:815 [ref. 22426], La Rivers 1994:399 [ref. 23389], Gilbert 1998:74 [ref. 23395], Scott & Crossman 1998:504 [ref. 24570], Fuller et al. 1999:150 [ref. 25838], Moyle 2002:134 [ref. 26449], Nelson et al. 2004:77 [ref. 27807], Scharpf 2005:40 [ref. 28940], Page & Burr 2011:164 [ref. 31215], Page et al. 2013:78 [ref. 32708], Page et al. 2023:76 [ref. 40505]). Current status: Valid as Richardsonius egregius (Girard 1858). Leuciscidae: Pogonichthyinae. Distribution: Western North America: Nevada and California (western U.S.A.). Introduced elsewhere. Habitat: freshwater.

galtiae, Squalius Cope [E. D.] 1883:148 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 35; ref. 951] Pyramid Lake, Washoe County, Nevada, U.S.A. Lectotype: ANSP 19884. Paralectotypes: ANSP 19879-81 (3), 19883 (2). Type catalog: Böhlke 1984:77 [ref. 13621], Gilbert 1998:83-84 [ref. 23395]. •Synonym of Richardsonius egregius (Girard 1858) -- (La Rivers 1994:399 [ref. 23389], Gilbert 1998:84 [ref. 23395]). Current status: Synonym of Richardsonius egregius (Girard 1858). Leuciscidae: Pogonichthyinae. Habitat: freshwater.

microdon, Richardsonius Snyder [J. O.] 1917:58 [Bulletin of the Bureau of Fisheries v. 35 (for 1915-16); ref. 4156] Lake Tahoe, near Tahoe City, Placer County, California, U.S.A. Holotype: USNM 75652. Paratypes: CAS-SU 22667 (2), USNM 75684 (1). Type catalog: Böhlke 1953:38 [ref. 12291], Gilbert 1998:113 [ref. 23395]. •Hybrid between Gila bicolor obesa x Richardsonius egregius -- (Gilbert 1998:113 [ref. 23395]). Hybrid. Leuciscidae. Habitat: freshwater.