limosus, Plecostomus Eigenmann [C. H.] & Eigenmann [R. S.] 1888:168 [Proceedings of the California Academy of Sciences (Series 2) v. 1 (pt 2); ref. 1249] Rio Grande do Sul, Brazil. Lectotype: MCZ 7869. Paralectotypes: MCZ 88946 [ex MCZ 7869] (2), BMNH 1904.1.28.1 [ex MCZ] (1). Type catalog: Ferraris 2007:253 [ref. 29155]. Lectotype selected by Reis et al. 1990:737 [ref. 16139]. •Valid as Hypostomus limosus (Eigenmann & Eigenmann 1888) -- (Isbrücker 1980:26 [ref. 2303], Burgess 1989:431 [ref. 12860], Armbruster 2004:79 [ref. 27644]). •Synonym of Hypostomus commersonii Valenciennes 1836 -- (Malabarba 1989:152 [ref. 14217], Reis et al. 1990:736 [ref. 16139], Isbrücker 2001:31 [ref. 25653], Isbrücker 2002:26 [ref. 27178], Weber in Reis et al. 2003:357 [ref. 27061] as commersoni, Ferraris 2007:253 [ref. 29155], Mirande & Koerber 2015:42 [ref. 35117] as commersoni, Koerber et al. 2017:61 [ref. 35267]). •Synonym of Hypostomus spiniger (Hensel 1870) -- (Cardoso et al. 2019:[12] [ref. 36685]). Current status: Synonym of Hypostomus spiniger (Hensel 1870). Loricariidae: Hypostominae. Habitat: freshwater.