machadoi, Gephyrocharax Ferreira [K. M.], Faria [É. de], Ribeiro [A. C.], Santana [J. C. O.], Quagio-Grassioto [I.] & Menezes [N. A.] 2018:162, Figs. 1-2, 4-8 [Zootaxa 4415 (no. 1); ref. 35911] Rio Sepotuba, Tangará da Serra, Mato Grosso, Brazil, 14°30'05"S, 57°34'39"W. Holotype: CPUFMT 2429. Paratypes: CPUFMT, MZUSP. •Valid as Gephyrocharax machadoi Ferreira, Faria, Ribeiro, Santana, Quagio-Grassioto & Menezes 2018. Current status: Valid as Gephyrocharax machadoi Ferreira, Faria, Ribeiro, Santana, Quagio-Grassioto & Menezes 2018. Characidae: Stevardiinae. Distribution: Upper Rio Paraguai basin, Mato Grosso, central Brazil. Habitat: freshwater.