ternetzi, Plecostomus Boulenger [G. A.] 1895:525 [Proceedings of the Zoological Society of London 1895 (pt 3); ref. 14576] Rio Paraguay. Holotype (unique): BMNH 1895.5.17.64. Type catalog: Ferraris 2007:261 [ref. 29155]. •Valid as Hypostomus ternetzi (Boulenger 1895) -- (Isbrücker 1980:36 [ref. 2303], Burgess 1989:432 [ref. 12860], Reis et al. 1990:749 [ref. 16139], Isbrücker 2001:28, 31 [ref. 25653], Isbrücker 2002:19 [ref. 27178], Weber in Reis et al. 2003:363 [ref. 27061], López et al. 2003:52 [ref. 27366], Armbruster 2004:80 [ref. 27644], Menni 2004:81 [ref. 28131], Ferraris 2007:261 [ref. 29155], Zawadzki et al. 2010:719 [ref. 31074], Zawadzki et al. 2012:246 [ref. 32031], Cardoso et al. 2012:77 [ref. 32154], Zawadzki et al. 2014:103 [ref. 33233], Martins et al. 2014:8 [ref. 33617], Litz & Koerber 2014:25 [ref. 33622], Mirande & Koerber 2015:43 [ref. 35117], Cardoso et al. 2016:22 [ref. 34373], Bertaco et al. 2016:419 [ref. 34561], Koerber et al. 2017:63 [ref. 35267], Zawadzki et al. 2018:[16] [ref. 35944], Zawadzki et al. 2019:[11] [ref. 37170], Reis et al. 2020:467 [ref. 38364], Zawadzki et al. 2021:110 [ref. 38157], Loureiro et al. 2023:107 [ref. 40506]). Current status: Valid as Hypostomus ternetzi (Boulenger 1895). Loricariidae: Hypostominae. Distribution: South America: middle Paraná system, Paraguay and Uruguay River basins (Argentina, Brazil, Paraguay and Uruguay). Habitat: freshwater.