ornatus, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1976:126, Figs. 1-3 [Bulletin Zoölogisch Museum, Universiteit van Amsterdam v. 5 (no. 15); ref. 7379] Rio Tapajós, 80 kilometers east of Jacareacanga, 6°09'S, 58°15'W, Brazil. Holotype: ZMA 114690. Paratypes: BMNH 1976.4.27.144 (1), USNM 216075 (1), ZMA 114691 (3), ZMH H5689 (1). Type catalog: Wilkens 1977:159 [ref. 22013], Nijssen et al. 1982:48 [ref. 19236], Ferraris & Vari 1992:14 [ref. 19771], Ferraris 2007:121 [ref. 29155]. •Valid as Corydoras ornatus Nijssen & Isbrücker 1976 -- (Nijssen & Isbrücker 1980:202 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:231 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:121 [ref. 29155], Espíndola et al. 2014:26 [ref. 33269], Tencatt et al. 2022:33 [ref. 39741]). Current status: Valid as Corydoras ornatus Nijssen & Isbrücker 1976. Callichthyidae: Corydoradinae. Distribution: Lower Tapajós River drainage, Amazon basin, Brazil. Habitat: freshwater.