haleppensis, Rhynchobdella Bloch [M. E.] & Schneider [J. G.] 1801:480 [M. E. Blochii, Systema Ichthyologiae; ref. 471] "Frequens Haleppi, Simack il Inglese dictus" [Aleppo, Syria]. Mastacembelus aleppensis Günther 1861 is an unjustified emendation. •Synonym of Mastacembelus simack (Walbaum 1792) -- (Kottelat 2022:448 [ref. 39410]). •Synonym of Mastacembelus mastacembelus (Banks & Solander 1794) -- (Coad 1991:22 [ref. 15702], Coad 1995:32 [ref. 23608], Esmaeili et al. 2010:375 [ref. 33391], Jouladeh-Roudbar et al. 2015:895 [ref. 34062], Coad 2015:2 [ref. 35412], Esmaeili et al. 2017:94 [ref. 35254], Esmaeili et al. 2018:75 [ref. 36089], Jouladeh-Roudbar et al. 2020:249 [ref. 37983], Çiçek et al. 2024:323 [ref. 40789]). Current status: Synonym of Mastacembelus mastacembelus (Banks & Solander 1794). Mastacembelidae. Habitat: freshwater, brackish.