myrmex, Hyphessobrycon Pastana [M. N. L.], Dagosta [F. C. P.] & Esguícero [A. L. H.] 2017:2, Figs. 1, 2, 3a-b [Journal of Fish Biology v. 91 (no. 5); ref. 35596] Rio Formiga at PCH Divisa, upper Rio Juruena, Rio Tapajós basin, Campos de Júlio, Mato Grosso, Brazil, 13°22'29.3"S, 59°08'35.2"W. Holotype: MZUSP 118671. Paratypes: INPA, LIRP, MCP, MZUSP. •Valid as Hyphessobrycon myrmex Pastana, Dagosta & Esguícero 2017. Current status: Valid as Hyphessobrycon myrmex Pastana, Dagosta & Esguícero 2017. Acestrorhamphidae: Hyphessobryconinae. Distribution: Upper Rio Juruena drainage, Rio Tapajós basin, Mato Grosso, Brazil. Habitat: freshwater.