nitidus, Nannostomus Weitzman [S. H.] 1978:3, Figs. 1-2 [Smithsonian Contributions to Zoology No. 263; ref. 7040] Igarapé Candiru-Mirim, Rio Capim, Pará, Brazil. Holotype: MZUSP 12920. Paratypes: ANSP 137388 (4, published as 5), BMNH 1976.11.8.1-5 (5), MZUSP 12921-38 (18), USNM 216204 (8). Type catalog: Böhlke 1984:119 [ref. 13621], Vari & Howe 1991:31 [ref. 19022], Oyakawa 1996:484 [ref. 23140]. •Valid as Nannostomus nitidus Weitzman 1978 -- (Weitzman & Weitzman in Reis et al. 2003:245 [ref. 27061], Zarske 2011:293 [ref. 31670], Guimarães et al. 2020:1 [ref. 37521], Koerber et al. 2022:27 [ref. 39235] unconfirmed, Marinho 2024:388 [ref. 40817]). Current status: Valid as Nannostomus nitidus Weitzman 1978. Lebiasinidae: Pyrrhulininae. Distribution: South America: lower Amazon and Capim River basins, Pará State, Brazil. Habitat: freshwater.