luteus, Plecostomus Godoy [M. P. de] 1980:29, Figs. 15-16 [Poluiçao -- peixes e pesca; ref. 19214] Rio Pelotas at Volta Grande Dois, Marcelino Ramos, Rio Grande do Sul, Brazil. Holotype: MHNP 201. Type catalog: Ferraris 2007:256 [ref. 29155], Azevedo-Santos et al. 2023:547 [ref. 40344]. •Valid as Hypostomus luteus (Godoy 1980) -- (Reis et al. 1990:741 [ref. 16139], Isbrücker 2001:28, 31 [ref. 25653], Isbrücker 2002:19 [ref. 27178], Weber in Reis et al. 2003:359 [ref. 27061], Ferraris 2007:256 [ref. 29155], Cardoso et al. 2012:77 [ref. 32154], Cardoso et al. 2016:22 [ref. 34373], Bertaco et al. 2016:418 [ref. 34561], Zawadzki et al. 2017:12 [ref. 35355], Zawadzki et al. 2018:[17] [ref. 35944], Zawadzki et al. 2019:[11] [ref. 37170], Azevedo et al. 2021:9 [ref. 38203]). Current status: Valid as Hypostomus luteus (Godoy 1980). Loricariidae: Hypostominae. Distribution: South America: upper Rio Uruguay basin (Brazil). Habitat: freshwater.