arcifer, Callichthys Hensel [R.] 1868:373 [Archiv für Naturgeschichte v. 34 (pt 1); ref. 14075] Rio de Janeiro, Brazil. Holotype (unique): ZMB 7433. Type catalog: Ferraris 2007:111 [ref. 29155]. •Synonym of Callichthys callichthys (Linnaeus 1758) -- (Reis in Reis et al. 2003:293 [ref. 27061], Ferraris 2007:111 [ref. 29155], Litz & Koerber 2014:22 [ref. 33622], Mirande & Koerber 2015:39 [ref. 35117], Koerber et al. 2017:55 [ref. 35267]). Current status: Synonym of Callichthys callichthys (Linnaeus 1758). Callichthyidae: Callichthyinae. Habitat: freshwater.