cupreus, Hemigrammus Durbin [M. L.] in Eigenmann 1918:168, Pl. 20 (fig. 3) [Memoirs of the Museum of Comparative Zoology v. 43 (pt 2); ref. 1240] Jatuarana, Silves, Lago Saracá, Amazon system, Brazil [= Barreirinha, Amazon River and Lago Saracá, Amazonas, Brazil, about 2°50'S, 58°14'W]. Syntypes: (11 + 6) CAS 42675 [ex IU 12651, MCZ 20952] (2); ?MCZ 21067 (6), ?21069 (9?, orig. 6), 89964 (orig. 11). Author is M. L. Durbin. Appeared first in Eigenmann 1910:436 [ref. 1224] without description. •Valid as Hemigrammus cupreus Durbin 1918 -- (Lima & Oyakawa in Reis et al. 2003:131 [ref. 27061], Barriga Salazar 2014:107 [ref. 35745], Lima & Marinho 2024:174 [ref. 40817]). Current status: Valid as Hemigrammus cupreus Durbin 1918. Acestrorhamphidae: Pristellinae. Distribution: South America: Brazil and ? Ecuador. Habitat: freshwater.