After Froese & Pauly, 2001 [“The Fishbase”]

<==o Enneapterygius [51]
   |-- E. abeli (Klausewitz, 1960) (Yellow triplefin)
   |-- E. altipinnis Clark, 1980 (Highfin triplefin)
   |-- E. atriceps (Jenkins, 1903) (Hawaiian blackhead triplefin)
   |-- E. atrogulare (Günther, 1873) (Eastern Australian blackhead triplefin)
   |-- E. bahasa Fricke, 1997 (Blacktail triplefin)
   |-- E. bichrous Fricke, 1994 (Northern bicoloured triplefin)
   |-- E. cheni Wang, Shao & Shen, 1996
   |-- E. clarkae Holleman, 1982 (Barred triplefin)
   |-- E. clea Fricke, 1997 (Clea's triplefin)
   |-- E. destai Clark, 1980
   |-- E. elegans Peters, 1876 (Hourglass triplefin)
   |-- E. etheostomus (Jordan & Snyder, 1902)
   |-- E. fasciatus (Weber, 1909)
   |-- E. flavoccipitis Shen, 1994
   |-- E. fuscoventer Fricke, 1997 (Blackbelly triplefin)
   |-- E. gracilis Fricke, 1994 (Northern yellow-black triplefin)
   |-- E. hemimelas (Kner & Steindachner, 1867) (Half-black triplefin)
   |-- E. hollemani Randall, 1995 (Holleman's triplefin)
   |-- E. howensis Fricke, 1997 (Lord Howe Island triplefin)
   |-- E. kermadecensis Fricke, 1994 (Kermadec triplefin)
   |-- E. larsonae Fricke, 1994 (Western Australian black-head triplefin)
   |-- E. melanospilus Randall, 1995
   |-- E. minutus (Günther, 1877) (Minute triplefin)
   |-- E. mirabilis Fricke, 1994 (Miracle triplefin)
   |-- E. miyakensis Fricke, 1987 (Izu Islands triplefin)
   |-- E. namarrgon Fricke, 1997 (Lightning man triplefin)
   |-- E. nanus (Schultz, 1960) (Pygmy triplefin)
   |-- E. nasimae Hoda, 1983 (Pakistan triplefin)
   |-- E. niger Fricke, 1994 (New Caledonian black triplefin)
   |-- E. nigricauda Fricke, 1997 (Pacific blacktail triplefin)
   |-- E. obscurus Clark, 1980
   |-- E. ornatus Fricke, 1997 (Henderson triplefin)
   |-- E. pallidoserialis Fricke, 1997 (Pale white-spotted triplefin)
   |-- E. paucifasciatus Fricke, 1994 (New Caledonian striped triplefin)
   |-- E. philippinus (Peters, 1869)
   |-- E. pusillus Rüppell, 1835 (Highcrest triplefin)
   |-- E. pyramis Fricke, 1994 (Pyramid triplefin)
   |-- E. randalli Fricke, 1997 (Rapa triplefin)
   |-- E. rhabdotus Fricke, 1994 (South Pacific striped triplefin)
   |-- E. rhothion Fricke, 1997 (New Caledonian blackhead surf triplefin)
   |-- E. rubicauda Shen, 1994 (Redtail triplefin)
   |-- E. rufopileus (Waite, 1904) (Lord Howe black-head triplefin)
   |-- E. signicauda Fricke, 1997 (Flagtail triplefin)
   |-- E. similis Fricke, 1997
   |-- E. triserialis Fricke, 1994 (White-spotted triplefin)
   |-- E. tutuilae Jordan & Seale, 1906 (High hat triplefin)
   |-- E. unimaculatus Fricke, 1994 (Onespot triplefin)
   |-- E. ventermaculus Holleman, 1982 (Blotched triplefin)
   |-- E. vexillarius Fowler, 1946 (Blacksaddle triplefin)
   |-- E. williamsi Fricke, 1997 (William's triplefin)
   `-- E. ziegleri Fricke, 1994 (Ziegler's triplefin)

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