After Nelson, 1994, with Recent species from Froese & Pauly, 2001 [“The Fishbase”]

<==o Crenuchidae (purjetetrat)
   |--o Crenuchinae (purjetetrat)
   |  |-- Crenuchus spilurus Günther, 1863 (Sailfin tetra; purjetetra)
   |  `--o Poecilocharax
   |     |-- P. bovalii Eigenmann, 1909
   |     `-- P. weitzmani Géry, 1965 (Black morpho tetra)
   `--o Characidiinae
      |--o Ammocryptocharax
      |  |-- A. elegans Weitzman & Kanazawa, 1976
      |  |-- A. lateralis (Eigenmann, 1909)
      |  |-- A. minutus Buckup, 1993
      |  `-- A. vintonae (Eigenmann, 1909)
      |-- Characidium (pohjatetrat)
      |--o Elachocharax [Geisleria]
      |  |-- E. geryi Weitzman & Kanazawa, 1978
      |  |-- E. junki (Géry, 1971)
      |  |-- E. mitopterus Weitzman, 1986
      |  `-- E. pulcher Myers, 1927
      |-- Klausewitzia ritae Géry, 1965
      |-- Leptocharacidium omospilus Buckup, 1993
      |--o Melanocharacidium
      |  |-- M. auroradiatum Costa & Vicente, 1994
      |  |-- M. blennioides (Eigenmann, 1909)
      |  |-- M. compressus Buckup, 1993
      |  |-- M. depressum Buckup, 1993
      |  |-- M. dispilomma Buckup, 1993
      |  |-- M. melanopteron Buckup, 1993
      |  |-- M. nigrum Buckup, 1993
      |  |-- M. pectorale Buckup, 1993
      |  `-- M. rex (Böhlke, 1958)
      |--o Microcharacidium [Jobertina]
      |  |-- M. eleotrioides (Géry, 1960)
      |  |-- M. gnomus Buckup, 1993
      |  `-- M. weitzmani Buckup, 1993
      |-- Odontocharacidium aphanes (Weitzman & Kanazawa, 1977) (Green dwarf tetra)
      `-- Skiotocharax meizon Presswell, Weitzman & Bergquist, 2000

Reference(s):