Chi này gồm các loài

• Xiphophorus alvarezi D. E. Rosen, 1960 (Chiapas swordtail)
• Xiphophorus birchmanni Lechner & Radda, 1987 (sheepshead swordtail)
• Xiphophorus clemenciae Álvarez, 1959 (yellow swordtail)
• Xiphophorus cortezi D. E. Rosen, 1960 (delicate swordtail)
• Xiphophorus hellerii Heckel, 1848 (red swordtail)
• Xiphophorus kallmani M. K. Meyer & Schartl, 2003
• Xiphophorus malinche Rauchengerger, Kallman & Morizot, 1990 (highland swordtail)
• Xiphophorus mayae M. K. Meyer & chartl, 2002
• Xiphophorus meyeri Schartl & Schröder, 1988 (marbled swordtail)
• Xiphophorus mixei Kallman, Walter, Morizot & Kazianis, 2004 (Mixe swordtail)
• Xiphophorus montezumae D. S. Jordan & Snyder, 1899 (Montezuma swordtail)
• Xiphophorus monticolus Kallman, Walter, Morizot & Kazianis, 2004 (southern mountain swordtail)
• Xiphophorus multilineatus Rauchengerger, Kallman & Morizot, 1990
• Xiphophorus nezahualcoyotl Rauchengerger, Kallman & Morizot, 1990 (mountain swordtail)
• Xiphophorus nigrensis D. E. Rosen, 1960 (Panuco swordtail)
• Xiphophorus pygmaeus C. L. Hubbs & Gordon, 1943 (pygmy swordtail)
• Xiphophorus signum D. E. Rosen & Kallman, 1969
• Xiphophorus andersi M. K. Meyer & Schartl, 1980 (spiketail platyfish)
• Xiphophorus continens Rauchengerger, Kallman & Morizot, 1990 (short-sword platyfish)
• Xiphophorus couchianus (Girard, 1859) (Monterrey platyfish)
• Xiphophorus evelynae D. E. Rosen, 1960 (Puebla platyfish)
• Xiphophorus gordoni R. R. Miller & W. L. Minckley, 1963 (northern platyfish)
• Xiphophorus kosszanderi M. K. Meyer & Wischnath, 1981, sometimes considered a natural hybrid in which case the name would be invalid[1]
• Xiphophorus maculatus (Günther, 1866) (southern platyfish)
• Xiphophorus milleri D. E. Rosen, 1960 (Catemaco platyfish)
• Xiphophorus roseni M. K. Meyer & Wischnath, 1981
• Xiphophorus variatus (Meek, 1904) (variable platyfish)
• Xiphophorus xiphidium (Gordon, 1932) (swordtail platyfish)