Mixobrycon Eigenmann, 1915

Mixobrycon ribeiroi (Eigenmann) was originally described as a species of Cheirodon (Eigenmann & Ogle, 1907) and it was considered as part of the Cheirodontinae by Géry (1977) in having only one row of premaxillary teeth. Malabarba (1998a) mentioned that the holotype of this species, although much damaged, resembles some Hyphessobrycon species and that the unique feature relating this species with the Cheirodontinae is the dentition.