Poeciliidae Garman, 1895
Xiphophorus alvarezi Rosen, 1960
Xiphophorus andersi Meyer & Schartl, 1980
Xiphophorus birchmanni Lechner & Radda, 1987
Xiphophorus clemenciae Álvarez, 1959
Xiphophorus continens Rauchenberger, Kallman & Morizot, 1990
Xiphophorus cortezi Rosen, 1960
Xiphophorus couchianus (Girard, 1859)
Xiphophorus evelynae Rosen, 1960
Xiphophorus gordoni Miller & Minckley, 1963
Xiphophorus hellerii Heckel, 1848
Xiphophorus kallmani Meyer & Schartl, 2003
Xiphophorus kosszanderi Meyer & Wischnath, 1981
Xiphophorus maculatus (Günther, 1866)
Xiphophorus malinche Rauchenberger, Kallman & Morizot, 1990
Xiphophorus mayae Meyer & Schartl, 2002
Xiphophorus meyeri Schartl & Schröder, 1988
Xiphophorus milleri Rosen, 1960
Xiphophorus mixei Kallman, Walter, Morizot & Kazianis, 2004
Xiphophorus montezumae Jordan & Snyder, 1899
Xiphophorus monticolus Kallman, Walter, Morizot & Kazianis, 2004
Xiphophorus multilineatus Rauchenberger, Kallman & Morizot, 1990
Xiphophorus nezahualcoyotl Rauchenberger, Kallman & Morizot, 1990
Xiphophorus nigrensis Rosen, 1960
Xiphophorus pygmaeus Hubbs & Gordon, 1943
Xiphophorus roseni Meyer & Wischnath, 1981
Xiphophorus signum Rosen & Kallman, 1969
Xiphophorus variatus (Meek, 1904)
Xiphophorus xiphidium (Gordon, 1932)