guentheri, Hypoptopoma Boulenger [G. A.] 1895:526 [Proceedings of the Zoological Society of London 1895 (pt 3); ref. 14576] Descalvados, Mato Grosso State, Brazil. Syntypes: (numerous) BMNH 1895.5.17.77-82 (6). Type catalog: Ferraris 2007:250 [ref. 29155]. •Valid as Hypoptopoma guentheri Boulenger 1895 -- (Isbrücker 1980:87 [ref. 2303], Burgess 1989:439 [ref. 12860], Britski et al. 1999:133 [ref. 24147], Isbrücker 2001:28 [ref. 25653], Aquino & Miquelarena 2001:5 [ref. 26083], Isbrücker 2002:18 [ref. 27178]). •Synonym of Hypoptopoma inexspectatum (Holmberg 1893) -- (Schaefer in Reis et al. 2003:323 [ref. 27061], Ferraris 2007:250 [ref. 29155], Aquino & Schaefer 2010:60 [ref. 30875], Mirande & Koerber 2015:40 [ref. 35117], Koerber et al. 2017:58 [ref. 35267]). Current status: Synonym of Hypoptopoma inexspectatum (Holmberg 1893). Loricariidae: Hypoptopomatinae. Habitat: freshwater.