pseudonemacheir, Imparfinis Mees [G. F.] & Cala [P.] 1989:387, Fig. 2 [Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen (Series C, Biological and Medical Sciences) v. 92 (no. 3); ref. 14277] Río Tucuragua, near Caicara, Bolívar, Venezuela. Holotype: RMNH 30489 (1 of 3, 37.5 mm SL). Paratypes: ICNMHM 1403 (4); RMNH 30487 (4), 30489 (2 of 3); ZFMK 17818-19 (2). Type catalog: Ferraris 2007:186 [ref. 29155], Herder et al. 2010:120 [ref. 31087], Mojica & Agudelo-Zamora 2018:46 [ref. 36127]. •Valid as Imparfinis pseudonemacheir Mees & Cala 1989 -- (Burgess & Finley 1996:166 [ref. 22901], Bockmann & Guazzelli in Reis et al. 2003:415 [ref. 27061], Ferraris 2007:186 [ref. 29155], Ortega-Lara et al. 2011:791 [ref. 31716], DoNascimiento et al. 2017:90 [ref. 35633], Urbano-Bonilla et al. 2018:79 [ref. 35773], Meza-Vargas et al. 2021:24 [ref. 39298], Cortés-Hernández et al. 2023:13 [ref. 40341]). Current status: Valid as Imparfinis pseudonemacheir Mees & Cala 1989. Heptapteridae: Heptapterinae. Distribution: South America: Orinoco and upper Amazon River basins (Colombia, Peru and Venezuela). Habitat: freshwater.