virescens, Corydoras Miranda Ribeiro [A. de] 1912:16 [Loricariidae, Callichthyidae, Doradidae e Trichomycteridae Annexo no. 5; ref. 3718] Rio Paraguay near Cáceres, 16°05'S, 57°40'W, Mato Grosso State, Brazil. Holotype (unique): MNRJ 3806. Type catalog: Miranda Ribeiro 1955:395 [ref. 12732], Miranda Ribeiro 1959:15 [ref. 10392], Ferraris 2007:123 [ref. 29155]. •Valid as Corydoras virescens Miranda Ribeiro 1912 -- (Isbrücker 2001:237 [ref. 26805]). •Synonym of Corydoras polystictus Regan 1912 -- (Nijssen & Isbrücker 1980:197 [ref. 6910], Reis in Reis et al. 2003:301 [ref. 27061], Ferraris 2007:123 [ref. 29155], Mirande & Koerber 2015:40 [ref. 35117], Koerber et al. 2017:58 [ref. 35267]). Current status: Synonym of Corydoras polystictus Regan 1912. Callichthyidae: Corydoradinae. Habitat: freshwater.