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

<==o Microphis [Oostethus] [18]
   |-- M. argulus (Peters, 1855) (Flat-nosed pipepish)
   |--o M. brachyurus (Bleeker, 1853)
   |  |-- M. b. aculeatus (Kaup, 1856)
   |  |-- M. b. brachyurus (Bleeker, 1853) (Short-tailed pipefish)
   |  |-- M. b. lineatus (Kaup, 1856)
   |  `-- M. b. millepunctatus (Kaup, 1856) (Shorttail pipefish)
   |-- M. brevidorsalis (de Beaufort, 1913)
   |-- M. caudocarinatus (Weber, 1907) (Slender pipefish)
   |-- M. cruentus Dawson & Fourmanoir, 1981
   |-- M. cuncalus (Hamilton, 1822) (Crocodile-tooth pipefish)
   |-- M. deocata (Hamilton, 1822) (Deocata pipefish)
   |-- M. dunckeri (Prashad & Mukerji, 1929)
   |-- M. fluviatilis (Peters, 1852) (Freshwater pipefish)
   |-- M. insularis (Hora, 1925) (Andaman pipefish)
   |-- M. jagorii Peters, 1869
   |-- M. leiaspis (Bleeker, 1853) (Barhead pipefish)
   |-- M. manadensis (Bleeker, 1856) (Menado pipefish)
   |-- M. mento (Bleeker, 1856)
   |-- M. ocellatus (Duncker, 1910)
   |-- M. pleurostictus Peters, 1869
   |-- M. retzii (Bleeker, 1856) (Ragged-tail pipefish)
   `-- M. spinachioides (Duncker, 1915) (Spinach pipefish)

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