adonis, Acanthicus Isbrücker [I. J. H.] & Nijssen [H.] 1988:166, Figs. 5-7 [Die Aquarien- und Terrarienzeitschrift (DATZ) v. 41 (no. 6); ref. 7320] Rio Tocantins at Cametá, 0°14'S, 49°30.5'W, Pará State, Brazil. Holotype: MZUSP 38580. Paratypes: ZMA 119968 (4), 119992 (1); ZSM 26730 (2). Type catalog: Ferraris 2007:218 [ref. 29155], Neumann 2011:262 [ref. 31652]. •Valid as Acanthicus adonis Isbrücker & Nijssen 1988 -- (Burgess 1989:445 [ref. 12860], Isbrücker 2001:25 [ref. 25653], Isbrücker 2002:11 [ref. 27178], Fisch-Muller in Reis et al. 2003:373 [ref. 27061], Ferraris 2007:218 [ref. 29155], Chamon 2016:405 [ref. 34326], Meza-Vargas et al. 2021:25 [ref. 39298]). Current status: Valid as Acanthicus adonis Isbrücker & Nijssen 1988. Loricariidae: Hypostominae. Distribution: South America: lower Tocantins River basin, upper Amazon basin (Brazil, Peru). Habitat: freshwater.