nigricans, Anguilla Chu [Y.-T.] & Wu [H. W.] in Chu 1984:185, Fig. 124 [ ref. 8173] Xiamen, China. Holotype (unique): SFC 60-9452 (lost). •Valid as Anguilla nigricans Chu & Wu 1984 -- (Kuang in Pan et al. 1991:54 [ref. 23876]). •Synonym of Anguilla japonica Temminck & Schlegel 1846 -- (Zhang et al. 2010:178 [ref. 31511], Zhang et al. 2016:46 [ref. 34477], Endruweit 2024:32 [ref. 41040]). Current status: Synonym of Anguilla japonica Temminck & Schlegel 1846. Anguillidae. Habitat: freshwater, brackish, marine.