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

<==o Helcogramma [24]
   |-- H. aquilum Williams & McCormick, 1990
   |-- H. billi Hansen, 1986
   |-- H. capidatum Rosenblatt, 1960 (Hooded triplefin)
   |-- H. chica Rosenblatt, 1960 (Little hooded triplefin)
   |-- H. decurrens McCulloch & Waite, 1918 (Black-throated triplefin)
   |-- H. ellioti (Herre, 1944)
   |-- H. fuscipectoris (Fowler, 1946) (Fourspot triplefin)
   |-- H. fuscopinna Holleman, 1982 (Blackfin triplefin)
   |-- H. gymnauchen (Weber, 1909) (Red-finned triplefin)
   |-- H. habena Williams & McCormick, 1990
   |-- H. hudsoni (Jordan & Seale, 1906) (Hudson's triplefin)
   |-- H. inclinatum (Fowler, 1946) (Triangle triplefin)
   |-- H. kranos Fricke, 1997 (Helmet triplefin)
   |-- H. larvata Fricke & Randall, 1992
   |-- H. maldivensis Fricke & Randall, 1992
   |-- H. novaecaledoniae Fricke, 1994 (New Caledonian triplefin)
   |-- H. obtusirostre (Klunzinger, 1871) (Hotlips triplefin)
   |-- H. rhinoceros Hansen, 1986 (Rhinocerus triplefin)
   |-- H. solorensis Fricke, 1997 (Solor triplefin)
   |-- H. springeri Hansen, 1986 (Springer's triplefin)
   |-- H. steinitzi Clark, 1980 (Red triplefin)
   |-- H. striatum Hansen, 1986 (Tropical striped triplefin)
   |-- H. trigloides (Bleeker, 1858)
   `-- H. vulcanum Randall & Clark, 1993

Reference(s):