xanthulum, Cynoscion Jordan [D. S.] & Gilbert [C. H.] 1882:460 [Proceedings of the United States National Museum v. 4 (no. 254) (for 4 Aug. 1882); ref. 10610] Mazatlán, Sinaloa, western Mexico. Holotype (unique): USNM 28109 (not found in 1980). •Valid as Cynoscion xanthulus Jordan & Gilbert 1882 -- (Page & Burr 1991:327 [ref. 18983], Allen & Robertson 1994:160 [ref. 22193], Chao in Fischer et al. 1995:1463 [ref. 22830], De La Cruz Agüero et al. 1997:266 [ref. 24545], Castro-Aguirre et al. 1999:364 [ref. 24550], Fuller et al. 1999:406 [ref. 25838], Chao 2002:12 [ref. 26250] dated 1881, Nelson et al. 2004:147 [ref. 27807], Love et al. 2005:127 [ref. 37547], Minckley & Marsh 2009:305 [ref. 31114], Page et al. 2013:151 [ref. 32708], Fourriére et al. 2016:458 [ref. 34668], Del Moral-Flores et al. 2016:609 [ref. 34923], Parenti 2020:16 [ref. 37439], Love et al. 2021:165 [ref. 39279], Page et al. 2023:209 [ref. 40505]). Current status: Valid as Cynoscion xanthulus Jordan & Gilbert 1882. Sciaenidae. Distribution: Eastern Pacific: Pacific coast of central Baja California (Mexico) south to Acapulco (Guerrero, Mexico), including Revillagigedo Islands (Mexico) and Gulf of California (Mexico); introduced elsewhere. Habitat: brackish, marine.