madagascariensis, Arius Vaillant [L. L.] 1894:77 [10] [Bulletin de la Société philomathique de Paris (8th Série) v. 6; ref. 14567] Murundava River, western Madagascar. Holotype (unique): MNHN 1894-0002. Type catalog: Bertin & Estève 1950:8 [ref. 19575], Ferraris 2007:35 [ref. 29155], Fricke et al. 2018:61 [ref. 35805]. Page 10 of separate. •Valid as Arius madagascariensis Vaillant 1894 -- (Taylor 1986:156 [ref. 6195], Burgess 1989:169 [ref. 12860], Ng & Sparks 2003:9 [ref. 27207], Marceniuk & Menezes 2007:18 [ref. 29031], Ferraris 2007:35 [ref. 29155], Marceniuk et al. 2012:665 [ref. 32225], Fricke et al. 2018:61 [ref. 35805]). •Possibly valid as Ariopsis madagascariensis (Vaillant 1894) -- (Kailola 2004:126 [ref. 28108]). •Valid as Betancurichthys madagascariensis (Vaillant 1894) -- (Marceniuk et al. 2023:30 [ref. 40422]). Current status: Valid as Betancurichthys madagascariensis (Vaillant 1894). Ariidae: Ariinae. Distribution: Southwestern Indian Ocean: western Madagascar [African records in error]. Habitat: freshwater, brackish.