ferox, Leius Kner [R.] 1864:186, Pl. 4 (figs. 2-2a) [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Classe v. 1 (no. 24); ref. 2637] Australia. Holotype (unique): NMW 76230. •Synonym of Isistius brasiliensis (Quoy & Gaimard 1824) -- (Compagno 1984:93 [ref. 6474], Paxton et al. 1989:36 [ref. 12442], Gomon et al. 1994:105 [ref. 22532], Last & Stevens 1994:87 [ref. 23873], Hoese & Gates 2006:146 [ref. 28997], Dyldin 2015:54 [ref. 34524], Figueiredo Petean & Carvalho 2018:8 [ref. 36078]). Current status: Synonym of Isistius brasiliensis (Quoy & Gaimard 1824). Dalatiidae. Habitat: marine.