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

<==o Anabatoidei (gouramies; labyrinttikalat)
   |-- Luciocephalus pulcher (Gray, 1830) [Luciocephalidae] (hauenpääkala; pikehead)
   |--+-- Helostoma temmincki Cuvier, 1829 [Helostomatus] [Helostomatidae] (pusukala; kissing gourami)
   |  `-- Anabantidae (kiipijäkalat; climbing gouramies) [4/35]
   `--+-- Belontiidae [Polyacanthidae] (rihmakalat; gouramies) [N: 13/34] [FB: 13/81]
      `--o Osphronemidae (guramit; giant gouramies) [N: 1/3] [FB: 1/4]
         `--o Osphronemus U. Eoc. or L. Olig. R. EInd. R. As. (guramit; giant gouramies)
            |-- O. exodon Roberts, 1994 (Elephant ear gourami)
            |-- O. goramy Lacépède, 1801 (gurami; Giant gourami)
            |-- O. laticlavius Roberts, 1992
            `-- O. septemfasciatus Roberts, 1992

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