macrocephalus, Clarias Günther [A.] 1864:18 [Catalogue of the fishes in the British Museum v. 5; ref. 1974] Thailand. Lectotype: BMNH 1862.11.1.216. Paralectotypes: BMNH 1862.11.1.27-28 (2), 1862.11.1.217 (1). Type catalog: Ferraris 2007:145 [ref. 29155]. Lectotype selected by Teugels et al. 1999:294 [ref. 24246]. •Valid as Clarias macrocephalus Günther 1864 -- (Rainboth 1996:163 [ref. 22772], Burgess 1989:146 [ref. 12860], Ng 1999:17 [ref. 23892], Teugels et al. 1999:287 [ref. 24246], Freyhof et al. 2000:96 [ref. 25184], Kottelat 2001:141 [ref. 25780], Sudarto et al. 2003:153 [ref. 27238], Sudarto et al. 2004:8 [ref. 27680], Ferraris 2007:145 [ref. 29155], Ng & Hadiaty 2011:1583 [ref. 31220], Kottelat 2013:243 [ref. 32989], Ng & Kottelat 2014:443 [ref. 33579], Ng et al. 2019:532 [ref. 36606], Taki et al. 2021:245 [ref. 39830], Low et al. 2022:393 [ref. 39370], Jamandre 2023:175 [ref. 40455]). Current status: Valid as Clarias macrocephalus Günther 1864. Clariidae. Distribution: Southeast Asia: Mekong and Chao Phraya River basins, Thailand, Malaysia and possibly Philippines. Habitat: freshwater.