Xiphophorus alvarezi (Rosen 1960)
Xiphophorus andersi (Meyer and Schartl 1980)
Xiphophorus birchmanni (Lechner and Radda 1987)
Xiphophorus clemenciae (Alvarez 1959)
Xiphophorus continens (Rauchenberger et al., 1990)
Xiphophorus cortezi (Rosen 1960)
Xiphophorus couchianus (Girard 1859)
Xiphophorus evelynae (Rosen 1960)
Xiphophorus gordoni (Miller and Minckley 1963)
Xiphophorus helleri (Heckel 1848)
Xiphophorus maculatus (Gunther 1866)
Xiphophorus malinche (Rauchenberger et al., 1990)
Xiphophorus mayae (Meyer and Schartl, 2002; In press)
Xiphophorus meyeri (Schartl and Schroder 1988)
Xiphophorus milleri (Rosen 1960)
Xiphophorus montezumae (Jordan and Snyder 1899)
Xiphophorus multilineatus (Rauchenberger et al., 1990)
Xiphophorus nezahualcoyotl (Rauchenberger et al., 1990)
Xiphophorus nigrensis (Rosen 1960)
Xiphophorus pygmaeus (Hubbs and Gordon 1943)
Xiphophorus signum (Rosen and Kallman 1969)
Xiphophorus variatus (Meek 1904)
Xiphophorus xiphidium (Gordon 1932)