actenolepis, Poptella Garcia-Ayala [J. R.] & Benine [R. C.] 2019:2, Figs. 1-4 [Neotropical Ichthyology v. 17 (no. 2): e180149; ref. 36770] Igarapé Mutum, nearby the bridge on road BR 230 between Vicinal Brasília and Nova Esperança, Rio Juma, tributary of the Rio Aripuanã, Rio Madeira basin, Apuí, Amazonas, Brazil, 07°14'56"S, 59°58'42.744"W. Holotype: MZUSP 124423. Paratypes: MZUSP. •Valid as Poptella actenolepis Garcia-Ayala & Benine 2019 -- (Garcia-Ayala & Benine 2021:7 [ref. 38089]). Current status: Valid as Poptella actenolepis Garcia-Ayala & Benine 2019. Characidae: Stethaprioninae. Distribution: Rio Aripuanã drainage, Rio Madeira basin, Amazonas, Brazil. Habitat: freshwater.