typus, Pseudoperilampus Bleeker [P.] 1863:258, Fig. [Verslagen en Mededeelingen der Koninklijke Akademie van Wetenschappen. Afdeling Natuurkunde. v. 15; ref. 17013] Japan. Holotype (unique): ?BMNH 1866.5.2.43. •Valid as Pseudoperilampus typus Bleeker 1863 -- (Okada 1961:409 [ref. 6363], Sawada in Masuda et al. 1984:55 [ref. 6441]). •In genus Acheilognathus -- (Arai & Akai 1988:209 [ref. 6999]). •Valid as Rhodeus typus (Bleeker 1863) -- (Zhu 1995:46 [ref. 25213]). •Valid as Acheilognathus typus (Bleeker 1863) -- (Kawanabe & Mizuno 1989:367 [ref. 25598], Watanabe 1998:262 [ref. 23491], Nakabo 2000:259 [ref. 25086], Matsuura et al. 2000:55 [ref. 26000], Nakabo 2002:259 [ref. 26001], Arai et al. 2007:24 [ref. 29106], Yang et al. 2011:163 [ref. 31154]). Current status: Valid as Acheilognathus typus (Bleeker 1863). Acheilognathidae. Distribution: Eastern Honshu, Japan. Habitat: freshwater.