inusitatus, Ituglanis Ferrer [J.] & Donin [L. M.] 2017:2, Figs. 1-4 [Neotropical Ichthyology v. 15 (no. 3) e170057; ref. 35614] Arroio São João tributary of rio Ibicuí, rio Uruguai basin, Município de Alegrete, Rio Grande do Sul, Brazil, 29°46'52"S, 55°24'56"W, elevation circa 92 meters. Holotype: UFRGS 21829. Paratypes: MCN, UFRGS. •Valid as Ituglanis inusitatus Ferrer & Donin 2017 -- (Mendonça et al. 2018:484 [ref. 36234], Ferrer 2021:255 [ref. 38890]). Current status: Valid as Ituglanis inusitatus Ferrer & Donin 2017. Trichomycteridae: Trichomycterinae. Distribution: South America: middle rio Uruguai basin (Rio Grande do Sul, southern Brazil). Habitat: freshwater.