nanus, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1967:41, Pl. 5 (fig. 1) [Zoologische Mededeelingen (Leiden) v. 42 (no. 5); ref. 7981] Little tributaries of Gran-Rio between Ligoria (= Ligolio) and Awaradam Falls, Brokopondo, Suriname. Holotype: RMNH 25333. Paratypes: RMNH 25334 (4), ZMA 104642 (2). Type catalog: Nijssen et al. 1982:47 [ref. 19236], Ferraris 2007:120 [ref. 29155]. •Valid as Corydoras nanus Nijssen & Isbrücker 1967 -- (Nijssen & Isbrücker 1980:214 [ref. 6910], Burgess 1989:366 [ref. 12860], Le Bail et al. 2000:202 [ref. 24549], Isbrücker 2001:230 [ref. 26805], Knaack 2002:52 [ref. 27224], Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:120 [ref. 29155], Ottoni et al. 2016:133 [ref. 34756], Ohara et al. 2016:548 [ref. 34772]). •Valid as Gastrodermus -- (Dias et al. 2024:24 [ref. 41219]). Current status: Valid as Gastrodermus nanus (Nijssen & Isbrücker 1967). Callichthyidae: Corydoradinae. Distribution: South America: Suriname and Maroni River basins, Suriname and Iracoubo River basin, French Guiana. Habitat: freshwater.