rhombea, Capoeta Temminck [C. J.] & Schlegel [H.] 1846:204, Pl. 100 (figs. 6, 6a-b) [Fauna Japonica Parts 10-14; ref. 4374] Near Nagasaki, Japan. Lectotype: RMNH 2490. Paralectotypes: (9 of the following) BMNH 1864.2.16.141 [ex RMNH] (1); RMNH 2491a-c (3), 2492 (1), 2493a-c (3), 2494a-b (2), 2495 (1), 2505a-c (3). Lectotype selected by Boeseman 1947:159 [ref. 12876]. •Valid as Acheilognathus rhombea (Temminck & Schlegel 1846) -- (Kuroda 1953:274 [ref. 39545]). •In genus Acheilognathus -- (Arai & Akai 1988:208 [ref. 6999]). •Valid as Acheilognathus rhombeus (Temminck & Schlegel 1846) -- (Okada 1961:373 [ref. 6363], Sawada in Masuda et al. 1984:54 [ref. 6441], Kawanabe & Mizuno 1989:368 [ref. 25598], Sato 1995:49 [ref. 25531], Kim 1997:186 [ref. 24032], Watanabe 1998:262 [ref. 23491], Kim & Yang 1998:29 [ref. 24125], Nakabo 2000:256 [ref. 25086], Matsuura et al. 2000:49 [ref. 26000], Kim & Park 2002:88 [ref. 25913], Nakabo 2002:256 [ref. 26001], Choi et al. 2003:156, 503 [ref. 26218], Arai et al. 2007:24 [ref. 29106], Bogutskaya et al. 2008:314 [ref. 30085], Miyake et al. 2021:[3] 1479 [ref. 39110]). Current status: Valid as Acheilognathus rhombeus (Temminck & Schlegel 1846). Acheilognathidae. Distribution: East Asia: Japan and Korea. Habitat: freshwater.