symmetricus, Pogonichthys Baird [S. F.] & Girard [C. F.] in Girard 1854:136 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 7; ref. 1817] Fort Miller, San Joaquin Valley, California, U.S.A. Lectotype: USNM 191. Paralectotypes: [all originally USNM 191] ANSP 5330-33 (4), MCZ 1961 (1), MNHN 0000-0353 (1), USNM 440410 (1 pharyngeal arch as #2749). Type catalog: Böhlke 1984:92 [ref. 13621], Gilbert 1998:154 [ref. 23395]. Lectotype selected by Baumsteiger & Moyle 2019:224 [ref. 36443]. •Valid as Lavinia symmetricus (Baird & Girard 1854) -- (Lee et al. 1980:200 [ref. 22416]). •Valid as Lavinia symmetricus (Baird & Girard 1854), subspecies symmetricus -- (Moyle 2002:140 [ref. 26449]). •Valid as Hesperoleucus symmetricus (Baird & Girard 1854), subspecies symmetricus (Baird & Girard 1854) -- (Gilbert 1998:154 [ref. 23395], Scharpf 2005:19 [ref. 28940], Baumsteiger & Moyle 2019:228 [ref. 36443]). •Valid as Hesperoleucus symmetricus (Baird & Girard 1854) -- (Page & Burr 1991:72 [ref. 18983], Fuller et al. 1999:78 [ref. 25838], Nelson et al. 2004:71 [ref. 27807], Page & Burr 2011:158 [ref. 31215], Page et al. 2013:71 [ref. 32708], Baumsteiger & Moyle 2019:224 [ref. 36443], Page et al. 2023:70 [ref. 40505]). Current status: Valid as Hesperoleucus symmetricus (Baird & Girard 1854). Leuciscidae: Laviniinae. Distribution: Western North America: Sacramento and San Joaquin River drainages, Central Valley, California (U.S.A.). Habitat: freshwater.