trilineatus, Corydoras Cope [E. D.] 1872:281, Pl. 6 (figs. 2a-c) [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 921] Tributary of Río Ambyiacu, Peru. Lectotype: ANSP 8294. Paralectotypes: ANSP 8295 (1). Type catalog: Böhlke 1984:32 [ref. 13621], Ferraris 2007:126 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:194 [ref. 6910]. •Valid as Corydoras trilineatus Cope 1872 -- (Nijssen & Isbrücker 1980:194 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:367 [ref. 12860], Isbrücker 2001:237 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:126 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Evers 2016:[12] [ref. 34387], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[18] [ref. 34388], DoNascimiento et al. 2017:73 [ref. 35633], Lima & Sazima 2017:30 [ref. 35111], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Hoplisoma trilineatum (Cope 1872) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma trilineatum (Cope 1872). Callichthyidae: Corydoradinae. Distribution: South America: Brazil, Ecuador, Bolivia, Colombia, Peru and Suriname. Habitat: freshwater.