| Xiphophorus kallmani M. K. Meyer & Schartl, 2003 |
| Xiphophorus maculatus (Günther, 1866) |
| Xiphophorus malinche Rauchenberger, Kallman & Morizot, 1990 |
| Xiphophorus marmoratus Obregón-Barboza & Contreras-Balderas, 1988 |
| Xiphophorus meyeri Schartl & Schröder, 1988 |
| Xiphophorus milleri Rosen, 1960 |
| Xiphophorus mixei Kallman, Walter, Morizot & Kazianis, 2004 |
| Xiphophorus montezumae Jordan & Snyder, 1899 |
| Xiphophorus montezumae subsp. birchmanni Lechner & Radda, 1987 |
| Xiphophorus montezumae subsp. cortezi Rosen, 1960 |
| 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 pygmaeus subsp. nigrensis Rosen, 1960 |
| Xiphophorus strigatus Regan, 1907 |
| Xiphophorus variatus (Meek, 1904) |
| Xiphophorus variatus subsp. evelynae Rosen, 1960 |
| Xiphophorus xiphidium (Hubbs & Gordon, 1934) |