trachycephalus, Corvina Bleeker [P.] 1851:269 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 1 (no. 3); ref. 325] Bandjarmasin, Borneo, Indonesia. Holotype (unique): RMNH 5973 [?5975] (1 of 4). •Valid as Johnius trachycephalus (Bleeker 1851) -- (Druzhinin 1973:55 [ref. 41045], Trewavas 1977:421 [ref. 4459], Kottelat et al. 1993:119 [ref. 23448], Sasaki in Randall & Lim 2000:621 [ref. 25122], Sasaki 2001:3151 [ref. 26108], Kottelat 2013:359 [ref. 32989], Lo et al. 2017:15 [ref. 35288], Parenti 2020:24 [ref. 37439], Taki et al. 2021:377 [ref. 39830], Hanafi et al. 2022:407 [ref. 39120] with date 1850). Current status: Valid as Johnius trachycephalus (Bleeker 1851). Sciaenidae. Distribution: Eastern Indian Ocean, western Pacific: Sumatra (Indonesia), Borneo, Thailand and Vietnam, South China Sea. Habitat: freshwater, brackish, marine.