Subfamily Alestiinae - African tetras
Alestes (or Brycinus)
Hydrocynus
Micralestes
Phenacogrammus
Rhabdalestes
and 13 other genera
Subfamily Characidiinae
8 genera
Subfamily Characinae
Acestrorhynchus - Pike characins
Aphyocharax
Boehlkea
Chalceus
Charax
Cynodo
Exodon
Hasemania
Hydrolycus
Nematobrycon
Petitella
Priocharax
Rhaphiodon
Roeboides
Thayeria
...
Subfamily Crenuchinae
Crenuchus
Poecilocharax
Subfamily Glandulocaudinae
16 genera
Subfamily Iguanodectinae
Iguanodectes
Piabucus
Subfamily Rhodasiinae
Carlana
Rhoadsia
Parastremma
Subfamily Serrasalminae
Catoprion
Colossoma
Metynnis
Myleus
Mylossoma
Pygocentrus
Serrasalmus
and 6 other genera
Subfamily Tetragonopterinae
Astyanax - Astynaxes
Byconamericus
Bryconops
Cheirodon
Gymnocorymbus
Hemibrycon
Hemigrammus
Hyphessobrycon
Inpaichthys
Megalamphodus
Moenkhausia
Oligosarcus
Paracheirodon
Rachoviscus
Tetragonopterus
Tyttobrycon
...
The Characidae are a family of freshwater subtropical and tropical fish, belonging to the Characiformes (characins). They orginate in the Americas from southwestern Texas and Mexico through Central and South America. They vary in length with the smallest growing to a maximum length of 0.5 in (13 mm).
To some extent the family serves as a junk-basket category and various forms have been, and probably will continue to be, removed into their own families. The tetras belong here, comprising the very similar genera Hemigrammus and Hyphessobrycon, as well as a few related forms. These include the cave and neon tetras. The larger piranhas also belong here.
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