steindachneri, Corydoras Isbrücker [I. J. H.] & Nijssen [H.] 1973:4, Fig. 3 [Beaufortia v. 21 (no. 272); ref. 7567] Paranaguá, 25°32'S, 48°36'W, Paraná State, Brazil. Holotype: NMW 1504. Paratypes: ZMA 112657 (1). Type catalog: Nijssen et al. 1982:51 [ref. 19236], Ferraris 2007:125 [ref. 29155]. •Valid as Corydoras steindachneri Isbrücker & Nijssen 1973 -- (Nijssen & Isbrücker 1980:206 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker 2001:236 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Ferraris 2007:125 [ref. 29155], Tencatt et al. 2014:78 [ref. 33230], Reis et al. 2020:465 [ref. 38364]). •Valid as Hoplisoma steindachneri (Isbrücker & Nijssen 1973) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma steindachneri (Isbrücker & Nijssen 1973). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers in Paraná State (Brazil). Habitat: freshwater.