erythropterus, Acheilognathus tabira Arai [R.], Fujikawa [H.] & Nagata [Y.] 2007:11, Figs. 3B-D, 8 [Bulletin of the National Museum of Nature and Science (Ser. A) Supplement No. 1; ref. 29106] Lake Kasumigaura, Hama, Tamatsukuri, Ibaraki Prefecture, Japan. Holotype: NSMT-P 72656. Paratypes: NSMT-P 74702 (49), 74703 (35), 27043 (2); ZUMT 61512 (2). Type catalog: Aizawa et al. 2022:231 [ref. 39655]. •Synonym of Acheilognathus tabira Jordan & Thompson 1914, but a valid subspecies erythropterus Arai, Fujikawa & Nagata 2007 as described. Current status: Synonym of Acheilognathus tabira Jordan & Thompson 1914. Acheilognathidae. Distribution: Pacific side of eastern Honshu [subspecies]. Habitat: freshwater.