 Subfamily Iguanodectinae moved to Iguanodectidae
Subfamily Heterocharacinae moved to Acestrorhynchidae
Subfamily Bryconinae moved to Bryconidae
Subfamily Salmininae moved to Bryconidae
Genera incertae sedis



A large number of taxa in this family are "incertae sedis".The relationships of many fish in this family – in particular species traditionally placed in the Tetragonopterinae, which had become something of a "wastebin taxon" – are poorly known, a comprehensive phylogenetic study for the entire family is needed.The genera "Hyphessobrycon", "Astyanax", "Hemigrammus", "Moenkhausia", and "Bryconamericus" include the largest number of currently recognized species
among characid fishes that are in need of revision; "Astyanax" and "Hyphessobrycon" in the usual delimitation are among the largest genera in this family.