ui, Strophidon Tanaka [S.] 1918:52 [Dobutsugaku Zasshi = Zoological Magazine Tokyo v. 30 (no. 352); ref. 17355] Tanaba, Wakayama Prefecture, Japan. Holotype (unique): ZUMT uncar. (lost). Type catalog: Aizawa et al. 2022:143 [ref. 39647]. •Synonym of Strophidon sathete (Hamilton 1822) -- (Böhlke 1995:460 [ref. 21738], Smith & Böhlke 2006:37 [ref. 28678], Zhang et al. 2010:239 [ref. 31511] as Strophidonui ui, Smith 2012:33 [ref. 32155], Kottelat 2013:43 [ref. 32989]). •Valid as Strophidon ui Tanaka 1918 -- (Hatooka in Masuda et al. 1984:22 [ref. 6441], Nakabo 2000:211 [ref. 25086], Nakabo 2002:211 [ref. 26001], Hibino et al. 2017:[5] [ref. 35174], Sonoyama et al. 2020:17 [ref. 37637]). Current status: Valid as Strophidon ui Tanaka 1918. Muraenidae: Muraeninae. Distribution: Northwestern Pacific: Japan. Habitat: freshwater, brackish, marine.