madurensis, Apocryptes Bleeker [P.] 1849:35 [Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen. v. 22 [6]; ref. 319] Madura Straits near Surabaya and Bangcallang, Java, Indonesia. Holotype (unique): RMNH 4520 (74-mm specimen). Bleeker specimens: RMNH 4520 (2 of 3). Appeared without distinguishing features in list in Bleeker 1849:5 [ref. 320]. •Valid as Apocryptodon madurensis (Bleeker 1849) -- (Lindberg & Krasyukova 1975:408 [ref. 7348], Akihito in Masuda et al. 1984:286 [ref. 6441], Wu & Ni in Kuang et al. 1986:298 [ref. 26639], Allen & Swainston 1988:138 [ref. 25477], Murdy 1989:9 [ref. 13628], Talwar & Jhingran 1991:952 [ref. 20764], Rainboth 1996:209 [ref. 22772], Allen 1997:222 [ref. 23977], Cheng & Zhou 1997:390 [ref. 26385], Larson & Williams 1997:371 [ref. 23967], Larson in Randall & Lim 2000:635 [ref. 25122], Hutchins 2001:42 [ref. 25847], Larson & Murdy 2001:3602 [ref. 26293], Hoese & Larson 2006:1623 [ref. 29097], Larson et al. 2008:139 [ref. 29532], Shibukawa 2009:263 [ref. 30449], Murdy 2011:104 [ref. 31728], Larson et al. 2013:190 [ref. 32988], Kottelat 2013:399 [ref. 32989], Murdy & Jaafar 2017:10 [ref. 35561], Shibukawa in Kimura et al. 2018:256 [ref. 36460], Eagderi et al. 2019:59 [ref. 37020], Parenti 2021:386 [ref. 38603], Taki et al. 2021:473 [ref. 39830], Endruweit 2024:101 [ref. 41040]). Current status: Valid as Apocryptodon madurensis (Bleeker 1849). Oxudercidae: Oxudercinae. Distribution: Indo-West Pacific: Persian Gulf east to Vietnam and the Philippines, north to southern Japan, south to northern Australia. Habitat: freshwater, brackish, marine.