melanogramma, Acinocheirodon Malabarba [L. R.] & Weitzman [S. H.] 1999:413, Figs. 1-7 [Proceedings of the Biological Society of Washington No. 112; ref. 24417] Município de Bocaiúva, córrego Cachoeira, tributary to Rio Jequitaí, kilometer 413 of highway BR 135, about 17°28'S, 44°02'W, Rio São Francisco drainage, Minas Gerais State, Brazil. Holotype: MNRJ 16455. Paratypes: ANSP 16472 (6), 176238 (7); MNRJ 13435 (4); MCP 16472 (6), 18596 (1), 18598 (1); plus non-type material. •Valid as Acinocheirodon melanogramma Malabarba & Weitzman 1999 -- (Malabarba & Weitzman 2000:279 [ref. 24413], Malabarba in Reis et al. 2003:215 [ref. 27061], Malabarba & Jerep 2014:76 [ref. 33440], Vieira-Guimarães et al. 2024:36 [ref. 41258]). Current status: Valid as Acinocheirodon melanogramma Malabarba & Weitzman 1999. Characidae: Cheirodontinae. Distribution: South America: São Francisco River basin and possibly Jequitinhonha River basin (Brazil). Habitat: freshwater.