macracanthus, Ambassis Bleeker [P.] 1849:30 [Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen. v. 22 [13]; ref. 318] Jakarta, Java, Indonesia. Syntypes: ?RMNH 5560 (1 or more of 6). •Valid as Ambassis macracanthus Bleeker 1849 -- (Allen & Burgess 1990:171 [ref. 15712], Allen 1991:116 [ref. 21090], Kottelat et al. 1993:105 [ref. 23448], Allen 1999:2435 [ref. 24812], Allen & Adrim 2003:30 [ref. 26830], Larson & Pidgeon 2004:196 [ref. 28107], Shibukawa 2009:79 [ref. 30449], Kottelat 2013:320 [ref. 32989], Fricke et al. 2014:57 [ref. 33932], Jamaluddin et al. 2022:[8] [ref. 39245], Ghazali et al. 2024:[4] 160 [ref. 40992], Jamandre 2023:172 [ref. 40455]). Current status: Valid as Ambassis macracanthus Bleeker 1849. Ambassidae. Distribution: Eastern Indian Ocean, western Pacific: Malaysia, Andaman Sea east to Indonesia, the Philippines, and Papua New Guinea. Habitat: freshwater, brackish.