deweyeri, Corydoras griseus Meinken [H.] 1957:5, Fig. [Die Aquarien- und Terrarienzeitschrift (DATZ) v. 10 (no. 1); ref. 12156] Guyana. Lectotype: ZMH H1186. Paralectotypes: ZMH H1187 (1). Type catalog: Wilkens 1977:159 [ref. 22013], Ferraris 2007:118 [ref. 29155], Grant 2021:17 [ref. 38629]. Lectotype selected by Nijssen & Isbrücker 1967:35 [ref. 7981]. Original spelling de weyeri; correction mandatory. Paralectotype may belong to different species; see Grant 2021:17 [ref. 38629]. •Synonym of Corydoras griseus Holly 1940 -- (Nijssen & Isbrücker 1980:210 [ref. 6910], Isbrücker 2001:226 [ref. 26805], Reis in Reis et al. 2003:298 [ref. 27061], Ferraris 2007:118 [ref. 29155]). •Valid as Corydoras deweyeri Meinken 1957 -- (Grant 2021:17 [ref. 38629]). Current status: Valid as Corydoras deweyeri Meinken 1957. Callichthyidae: Corydoradinae. Distribution: South America: Guyana. Habitat: freshwater.