Diapominae Eigenmann, 1909, new usage

Type genus: Diapoma Cope, 1894 .

Included genera: Atonitus Vari and Ortega, 2000, Aulixidens Böhlke, 1952, Boehlkea, Bryconamericus, Ceratobranchia, Diapoma, Knodus, Phallobrycon, Piabarchus, Piabina Reinhardt, 1867,and Rhinopetitia . Not sampled: Bryconacidnus, Hypobrycon, Monotocheirodon Eigenmann and Pearson, 1924, Nantis Mirande et al., 2004, Odontostoechus Gomes, 1947, Othonocheirodus Myers, 1927, and Rhinobrycon .

Definition: The least inclusive crown clade that contains Diapoma speculiferum Cope 1894, Diapoma alburnum (Hensel, 1870), and Knodus breoiceps (Eigenmann, 1908) . This is a minimum-crown-clade definition. See Figure 3 for a reference phylogeny of Diapominae . Although Diapoma speculiferum is