quadricostatus, Silurus Larrañaga [D. A.] 1923:376 [Escritos de Don Dámaso Antonio Larrañaga v. 2; ref. 22561] Uruguay. No types known. Type catalog: Ferraris 2007:122 [ref. 29155]. Corresponds to Silurus 7-radiatus on p. 385. Appeared as Silurus 7-radiatus vel quadricostatum in Devincenzi 1925: 322, 307 [ref. 20322]; Devincenzi treated as a synonym of Corydoras paleatus (Jenyns 1842). •Doubtful synonym of Corydoras paleatus (Jenyns 1842) -- (Isbrücker 2001:232 [ref. 26805]). •Synonym of Corydoras paleatus (Jenyns 1842) -- (Reis in Reis et al. 2003:301 [ref. 27061], Ferraris 2007:122 [ref. 29155], Litz & Koerber 2014:23 [ref. 33622], Mirande & Koerber 2015:40 [ref. 35117]). •Not a synonym of Corydoras paleatus (Jenyns 1842) -- (Tencatt et al. 2016:[10] [ref. 34388]). •Nomen dubium in genus Corydoras – (Grant 2018:28 [ref. 36057]). Nomen Dubium. Callichthyidae: Corydoradinae. Habitat: freshwater.