biamnicus, Otothyropsis Calegari [B. B.], Lehmann A. [P.] & Reis [R. E.] 2013:138, Figs. 3C-D, 6 [Zootaxa 3619 (no. 2); ref. 32493] Telêmaco Borba, ribeirão Harmonia, tributary to rio Tibagi basin, rio Paraná drainage, 24°18’19"S, 50°36’23"W, Paraná State, Brazil. Holotype: MCP 47288. Paratypes: Many at IFRGS, MCP, •Valid as Otothyropsis biamnicus Calegari, Lehmann A. & Reis 2013 -- (Lippert et al. 2014:243 [ref. 33355], Calegari et al. 2017:244 [ref. 35203], Reis et al. 2020:469 [ref. 38364], Brandão et al. 2022:167 [ref. 40464]). Current status: Valid as Otothyropsis biamnicus Calegari, Lehmann A. & Reis 2013. Loricariidae: Hypoptopomatinae. Distribution: South America: Rio Paraná Basin (Brazil). Habitat: freshwater.