vittatus, Corydoras blochi Nijssen [H.] 1971:97, Fig. 7 [Beaufortia v. 19 (no. 250); ref. 7698] Tributary of Rio Itapicurú at Caxias, 4°53'S, 43°20'W, Maranhão State, Brazil. Holotype: ZMA 109990. Paratypes: NMW 46803 (2), ZMA 109989 (2). Type catalog: Nijssen et al. 1982:43 [ref. 19236], Ferraris 2007:126 [ref. 29155]. •Synonym of Corydoras blochi Nijssen 1971, but a valid subspecies as described -- (Nijssen & Isbrücker 1980:218 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 1999:41 [ref. 24040]). •Valid as Corydoras vittatus Nijssen 1971 -- (Isbrücker 2001:237 [ref. 26805], Reis in Reis et al. 2003:304 [ref. 27061], Ferraris 2007:126 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Ramos et al. 2014:4 [ref. 35321], Tencatt et al. 2014:91 [ref. 33232], Tencatt & Ohara 2016:432 [ref. 34627], Koerber et al. 2022:48 [ref. 39235], Vieira et al. 2023:20 [ref. 40759]). Current status: Valid as Corydoras vittatus Nijssen 1971. Callichthyidae: Corydoradinae. Distribution: South America: northeastern Brazil and Ecuador. Habitat: freshwater.