| 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) |