occidentalis, Leucosomus Baird [S. F.] & Girard [C. F.] in Girard 1854:137 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 7; ref. 1817] Posa and Four creeks, San Joaquin Valley, California, U.S.A. Syntypes: ANSP 4611 [ex USNM 57] (1) 4518-4534 [ex USNM 57] (17), 4535 (1); MCZ 1955 (1); MNHN 0000-0382 [ex USNM 58] (2); UMMZ 56290 [ex USNM 57] (1); USNM 57 (22), 58 (orig. 10, now 6), 59 (orig. 2, now 0, 3 pharyngeal arches as #2667). Type catalog: Böhlke 1984:85 [ref. 13621], Gilbert 1998:124 [ref. 23395]. Author is S. F. Baird. •Synonym of Lavinia exilicauda Baird & Girard 1854 -- (Gilbert 1998:124 [ref. 23395]). Current status: Synonym of Lavinia exilicauda Baird & Girard 1854. Leuciscidae: Laviniinae. Habitat: freshwater.