hermanni, Plecostomus Ihering [R. von] 1905:560 [Annals and Magazine of Natural History (Series 7) v. 15 (no. 90) (art. 75); ref. 15388] Rio Piracicaba [Salto do Piracicaba, Piracicaba city], São Paulo, Brazil. Holotype (unique): BMNH 1905.6.9.5. Type catalog: Ferraris 2007:254 [ref. 29155]. •Valid as Hypostomus hermanni (Ihering 1905) -- (Isbrücker 1980:24 [ref. 2303], Burgess 1989:431 [ref. 12860], Gómez & Chebez 1996:64 [ref. 23791], Isbrücker 2001:28, 31 [ref. 25653], Isbrücker 2002:19 [ref. 27178], Weber in Reis et al. 2003:358 [ref. 27061], López et al. 2003:51 [ref. 27366], Armbruster 2004:79 [ref. 27644], Menni 2004:81 [ref. 28131], Ferraris 2007:254 [ref. 29155], Cardoso et al. 2012:77 [ref. 32154], Mirande & Koerber 2015:42 [ref. 35117], Zawadzki et al. 2016:272 [ref. 34908], Zawadzki et al. 2018:[16] [ref. 35944], Zawadzki et al. 2019:[11] [ref. 37170], Reis et al. 2020:467 [ref. 38364], Dias & Zawadzki 2021:4 [ref. 38417], Zawadzki & Azevedo 2024:325 [ref. 41237]). Current status: Valid as Hypostomus hermanni (Ihering 1905). Loricariidae: Hypostominae. Distribution: South America: Tietê River basin and upper Paraná River basin (Argentina and Brazil). Habitat: freshwater.