detrusus, Gillichthys Gilbert [C. H.] & Scofield [N. B.] 1898:498, Pl. 38 [Proceedings of the United States National Museum v. 20 (no. 1131); ref. 14633] Horseshoe Bend, near mouth of Colorado River, Mexico. Holotype: USNM 48127 (1 of many, if identifiable). Paratypes: BMNH 1897.1.12.32-37 [from Gilbert] (6); MCZ 35909 [ex USNM 48127] (1); NMW 31091 (1); CAS-SU 3836 (1), 5432 (116); USNM 48127 (50+). Type catalog: Böhlke 1953:112 [ref. 12291]. •Synonym of Gillichthys mirabilis Cooper 1864 -- (Castro-Aguirre et al. 1999:435 [ref. 24550], Miller 2006:397 [ref. 28615], Minckley & Marsh 2009:280 [ref. 31114]). •Valid as Gillichthys detrusus Gilbert & Scofield 1898 -- (Swift et al. 2011:96 [ref. 31225], Van Tassell 2011:143 [ref. 31732], Page et al. 2013:177 [ref. 32708], Parenti 2021:296 [ref. 38603], Page et al. 2023:122 [ref. 40505]). Current status: Valid as Gillichthys detrusus Gilbert & Scofield 1898. Oxudercidae: Gobionellinae. Distribution: Eastern Pacific: Colorado River Estuary, northern Gulf of California (Mexico). Habitat: freshwater, brackish, marine.