Genus Jupiaba .
The monophyly of Jupiaba was proposed by Zanata (1997) and supported by unique modifications of the pelvic bone. In the final hypothesis of Mirande (2009) the species of Jupiaba were the sister group of the remaining distal characids lacking a supraorbital bone, and was included in the Jupiaba clade. In the present hypothesis Jupiaba is nested within the Tetragonopterinae as the sister group of Deuterodon .
Synapomorphies:
1. Bony lamella dorsal to fourth basibranchial (185): (0> 1) absent. Reversal of synapomorphy 3 of node 203. Paralleled in Axelrodia lindeae, Gymnocharacinus bergii, Hollandichthys multifasciatus, Mimagoniates rheocharis, Nematocharax venustus, Paracheirodon axelrodi, and Prodontocharax melanotus .
2. Anterior tip of pelvic bone (263): (0> 1) pointed, lacking associated cartilage and frequently projecting outside body wall.