Species that contain: Imparfinis and longicauda [ 3 ] records

borodini, Imparfinis Mees [G. F.] & Cala [P.] 1989:387 [Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen (Series C, Biological and Medical Sciences) v. 92 (no. 3); ref. 14277] Franca, Rio Grande, Province of São Paulo, southeastern Brazil. Holotype (unique): AMNH 8639. Type catalog: Ferraris 2007:185 [ref. 29155]. Replacement name for Imparfinis longicauda Borodin 1927, secondarily preoccupied in Imparfinis by Pimelodus longicauda Boulenger 1887. Now in different genera, so no longer needed. •Valid as Imparfinis borodini Mees & Cala 1989 -- (Burgess & Finley 1996:166 [ref. 22901], Bockmann & Guazzelli in Reis et al. 2003:413 [ref. 27061], Ferraris 2007:185 [ref. 29155], Ortega-Lara et al. 2011:778 [ref. 31716], Castro & Wosiacki 2019:470 [ref. 37139], Azevedo-Santos et al. 2020:6 [ref. 39606], Reis et al. 2020:465 [ref. 38364], Silva et al. 2020:10 [ref. 37809]). •Valid as Heptapterus borodini (Mees & Cala 1989) -- (Deprá et al. 2022:330 [ref. 39580]). •Synonym of Heptapterus longicauda (Borodin 1927) -- (Deprá et al. 2023:149 [ref. 39829]). Replacement Name. Current status: Synonym of Heptapterus longicauda (Borodin 1927). Heptapteridae: Heptapterinae. Habitat: freshwater.

longicauda, Imparfinis Borodin [N. A.] 1927:4, Fig. 3 [American Museum Novitates No. 266; ref. 12246] Franca, Rio Grande, Province of São Paulo, southeastern Brazil. Holotype (unique): AMNH 8639. Type catalog: Ferraris 2007:185 [ref. 29155] Secondarily preoccupied in Imparfinis by Pimelodus longicauda Boulenger 1887; replaced by Imparfinis borodini Mees & Cala 1989. But now, both species are in different genera and both names are no longer secondary homonyms. •Treated as valid -- (Burgess 1989:277 [ref. 12860]). •Synonym of Imparfinis borodini Mees & Cala 1989 -- (Mees & Cala 1989:383 [ref. 14277], Bockmann & Guazzelli in Reis et al. 2003:414 [ref. 27061], Ferraris 2007:185 [ref. 29155]). •Valid as Heptapterus longicauda (Borodin 1927) -- (Deprá et al. 2023:149 [ref. 39829]). Current status: Valid as Heptapterus longicauda (Borodin 1927). Heptapteridae: Heptapterinae. Distribution: South America: upper Paraná, São Francisco and Tocantins River basins (Brazil). Habitat: freshwater.

longicauda, Pimelodus (Rhamdia) Boulenger [G. A.] 1887:275, Pl. 20 (fig. 2) [Proceedings of the Zoological Society of London 1887 (pt 2) (art. 2) (for 1 Mar. 1887); ref. 532] Canelos, eastern Ecuador. Syntypes: BMNH 1880.12.8.100-104 (5). Type catalog: Ferraris 2007:185 [ref. 29155]. The specific name is an indeclinable noun. •Valid as Rhamdia longicauda (Boulenger 1887) -- (Ovchynnyk 1967:35 [ref. 37559], Ortega & Vari 1986:15 [ref. 9708], Burgess 1989:279 [ref. 12860]). •Valid as Imparfinis longicauda (Boulenger 1887) (often seen as longicaudus) -- (Mees & Cala 1989:383 [ref. 14277], Bockmann & Guazzelli in Reis et al. 2003:414 [ref. 27061], Ferraris 2007:185 [ref. 29155], Ortega-Lara et al. 2011:778 [ref. 31716], Barriga Salazar 2014:114 [ref. 35745], Castro & Wosiacki 2019:471 [ref. 37139], Deprá et al. 2023:147 [ref. 39829]). Current status: Valid as Imparfinis longicauda (Boulenger 1887). Heptapteridae: Heptapterinae. Distribution: South America: Bobonaza River basin in upper Partaza River drainage (Ecuador) and Rio Corrente (Brazil). Habitat: freshwater.