moenkhausii, Poecilurichthys Eigenmann [C. H.] & Kennedy [C. H.] 1903:522 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 55; ref. 1260] Brook near Arroyo Trementina, Paraguay. Holotype: CAS 55102 [ex IU 10001]. Paratypes: AMNH 1463 (2); CAS 55103 [ex IU 10002] (1), 55104 [IU 10003] (orig. 9, now 4); FMNH 52601 (2). Type catalog: Ibarra & Stewart 1987:68 [ref. 12367]. •Valid as Knodus moenkhausii (Eigenmann & Kennedy 1903) -- (Ortega & Vari 1986:8 [ref. 9708], Ferreira & Lima 2006:637 [ref. 28919], Ferreira & Netto-Ferreira 2010:470 [ref. 30882], Román-Valencia et al. 2013:130 [ref. 32807], Barriga Salazar 2014:107 [ref. 35745] as cf. moenkhausii, Sarmiento et al. 2014:185 [ref. 35004], Thomaz et al. 2015:Add. 5 [ref. 33893], DoNascimiento et al. 2017:59 [ref. 35633], Koerber et al. 2017:34 [ref. 35267], Azevedo-Santos et al. 2019:5 [ref. 36506], Dos Anjos de Sousa et al. 2020:583 [ref. 37361], Reis et al. 2020:460 [ref. 38364], Deprá et al. 2021:24 [ref. 38180], Quintela et al. 2023:6 [ref. 40727] as cf. moenkhausii, Vieira-Guimarães et al. 2024:56 [ref. 41258]). Current status: Valid as Knodus moenkhausii (Eigenmann & Kennedy 1903). Stevardiidae: Diapominae. Distribution: South America: Amazon, Paraná and Jequitinhonha River basins (Bolivia, Brazil, ?Ecuador, Colombia, Paraguay and Peru). Introduced in southeastern Brazil. Habitat: freshwater.