After Ghedotti 2000, with Recent species from Froese & Pauly, 2001 [“The FishBase”]

<==o Heterandrini [FB: 4/38]
   |--o Priapichthys [Gh: 8] [FB: 4]
   |  |-- P. annectens (Regan, 1907)
   |  |-- P. fria (Eigenmann & Henn, 1914)
   |  |-- P. panamensis Meek & Hildebrand, 1916
   |  `-- P. puetzi Meyer & Etzel, 1996
   |--o Neoheterandria [4]
   |  |-- N. cana (Meek & Hildebrand, 1913)
   |  |-- N. elegans Henn, 1916
   |  |-- N. tridentiger (Garman, 1895)
   |  `-- N. umbratilis (Meek, 1912)
   |--o Heterandria [9]
   |  |-- H. anzuetoi Rosen & Bailey, 1979
   |  |-- H. attenuata Rosen & Bailey, 1979
   |  |-- H. bimaculata (Heckel, 1848) (Twospot livebearer)
   |  |-- H. cataractae Rosen, 1979
   |  |-- H. dirempta Rosen, 1979
   |  |-- H. formosa Girard, 1859 (Least killifish)
   |  |-- H. jonesii (Günther, 1874)
   |  |-- H. litoperas Rosen & Bailey, 1979
   |  `-- H. obliqua Rosen, 1979
   |?- Pseudoxiphophorus [8]
   `--o Poeciliopsis [Gh: 19] [FB: 21]
      |-- P. baenschi Meyer, Radda, Riehl & Feichtinger, 1986
      |-- P. balsas Hubbs, 1926
      |-- P. catemaco Miller, 1975
      |-- P. elongata (Günther, 1866) (Elongate toothcarp)
      |-- P. fasciata (Meek, 1904)
      |-- P. gracilis (Heckel, 1848) (Porthole livebearer)
      |-- P. hnilickai Meyer & Vogel, 1981
      |-- P. infans (Woolman, 1894)
      |-- P. latidens (Garman, 1895)
      |-- P. lucida Miller, 1960
      |-- P. lutzi (Meek, 1902)
      |-- P. monacha Miller, 1960
      |-- P. occidentalis (Baird & Girard, 1853) (Gila topminnow)
      |-- P. paucimaculata Bussing, 1967
      |-- P. presidionis (Jordan & Culver, 1895)
      |-- P. prolifica Miller, 1960
      |-- P. retropinna (Regan, 1908)
      |-- P. scarlli Meyer, Riehl, Dawes & Dibble, 1985
      |-- P. turneri Miller, 1975
      |-- P. turrubarensis (Meek, 1912)
      `-- P. viriosa Miller, 1960

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