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

<==o Ageneiosidae (viiksettömät monnit) [12 species]
   |--o Tetranematichthys Bleeker, 1858
   |  |-- T. quadrifilis (Kner, 1857) [Ageneiosus quadrifilis Kner, 1857]
   |  `-- T. wallacei Vari & Ferraris, 2006
   `--o Ageneiosus [Tympanopleura]
      |-- A. atronasus Eigenmann & Eigenmann, 1888
      |-- A. brevis Steindachner, 1881
      |-- A. dentatus Kner, 1858
      |-- A. guianensis Eigenmann, 1912
      |-- A. inermis (Linnaeus, 1766)
      |-- A. magoi Castillo & Brull G., 1989
      |-- A. marmoratus Eigenmann, 1912 (Bottlenose catfish)
      |-- A. militaris Valenciennes, 1840
      |-- A. pardalis Lütken, 1874
      |-- A. parnaguensis Steindachner, 1910
      |-- A. piperatus (Eigenmann, 1912)
      |-- A. polystictus Steindachner, 1915
      |-- A. porphyreus Cope, 1867
      |-- A. therezinae Steindachner, 1909
      |-- A. ucayalensis Castelnau, 1855
      `-- A. vittatus Steindachner, 1908

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