elongatus, Uranoscopus Temminck [C. J.] & Schlegel [H.] 1843:27, Pl. 9 (fig. 2) [Fauna Japonica Parts 2-4; ref. 4371] Japan. Lectotype: RMNH D709 (stuffed). Paralectotypes: RMNH D710 (1, stuffed). Lectotype selected by Boeseman 1947:41 [ref. 12876]. •Valid as Gnathagnus elongatus (Temminck & Schlegel 1843) -- (Okamura in Okamura et al. 1982:259, 386 [ref. 8256], Kishimoto in Masuda et al. 1984:293 [ref. 6441], Okamura in Okamura et al. 1985:561, 714 [ref. 8056], Pietsch 1989:294 [ref. 12541], Kishimoto 1989:313 [ref. 13562], Cheng & Zhou 1997:324 [ref. 26385] dated 1846, Choi et al. 2003:385, 648 [ref. 26218]). •Valid as Xenocephalus elongatus (Temminck & Schlegel 1843) -- (Kishimoto in Randall & Lim 2000:631 [ref. 25122], Nakabo 2000:1076 [ref. 25182], Shinohara et al. 2001:330 [ref. 25995], Nakabo 2002:1076 [ref. 26193], Shinohara et al. 2011:54 [ref. 31715], Vilasri 2013:91 [ref. 33304], Shinohara et al. 2014:271 [ref. 33330], Kim et al. 2020:163 [ref. 39118], Sonoyama et al. 2020:98 [ref. 37637]). Current status: Valid as Xenocephalus elongatus (Temminck & Schlegel 1843). Uranoscopidae. Distribution: Western Pacific: Indonesia; East China Sea and Ryukyu Islands (Japan) north to Korea and central Japan. Habitat: marine.