| Scientific Name | Author | English Name |
|---|---|---|
| Fundulus albolineatus | Gilbert, 1891 | Whiteline topminnow |
| Fundulus bermudae | Günther, 1874 | Bermuda killifish |
| Fundulus bifax | Cashner & Rogers, 1988 | Stippled studfish |
| Fundulus blairae | Wiley & Hall, 1975 | Western starhead topminnow |
| Fundulus catenatus | (Storer, 1846) | Northern studfish |
| Fundulus chrysotus | (Günther, 1866) | Golden topminnow |
| Fundulus cingulatus | Valenciennes, 1846 | Banded topminnow |
| Fundulus confluentus | Goode & Bean, 1879 | Marsh killifish |
| Fundulus diaphanus | (Lesueur, 1817) | Banded killifish |
| Fundulus dispar | (Agassiz, 1854) | Starhead topminnow |
| Fundulus escambiae | (Bollman, 1887) | Russetfin topminnow |
| Fundulus euryzonus | Suttkus & Cashner, 1981 | Broadstripe topminnow |
| Fundulus grandis | Baird & Girard, 1853 | Gulf killifish |
| Fundulus grandissimus | Hubbs, 1936 | Giant killifish |
| Fundulus heteroclitus | (Linnaeus, 1766) | Mummichog |
| Fundulus jenkinsi | (Evermann, 1892) | Saltmarsh topminnow |
| Fundulus julisia | Williams & Etnier, 1982 | Barrens topminnow |
| Fundulus kansae | Garman, 1895 | Northern plains killifish |
| Fundulus lima | Vaillant, 1894 | Killifish |
| Fundulus lineolatus | (Agassiz, 1854) | Lined topminnow |
| Fundulus luciae | (Baird, 1855) | Spotfin killifish |
| Fundulus majalis | (Walbaum, 1792) | Striped killifish |
| Fundulus notatus | (Rafinesque, 1820) | Blackstripe topminnow |
| Fundulus nottii | (Agassiz, 1854) | Bayou topminnow |
| Fundulus olivaceus | (Storer, 1845) | Blackspotted topminnow |
| Fundulus parvipinnis | Girard, 1854 | California killifish |
| Fundulus persimilis | Miller, 1955 | Yucatan killifish |
| Fundulus philpisteri | García-Ramírez, Contreras-Balderas & Lozano-Vilano, 2007 | |
| Fundulus pulvereus | (Evermann, 1892) | Bayou killifish |
| Fundulus rathbuni | Jordan & Meek, 1889 | Speckled killifish |
| Fundulus relictus | Able & Felley, 1988 | Lover's Lake killifish |
| Fundulus rubrifrons | (Jordan, 1880) | Redface topminnow |
| Fundulus saguanus | Rivas, 1948 | |
| Fundulus sciadicus | Cope, 1865 | Plains topminnow |
| Fundulus seminolis | Girard, 1859 | Seminole killifish |
| Fundulus similis | (Baird & Girard, 1853) | Longnose killifish |
| Fundulus stellifer | (Jordan, 1877) | Southern studfish |
| Fundulus waccamensis | Hubbs & Raney, 1946 | Waccamaw killifish |
| Fundulus xenicus | Jordan & Gilbert, 1882 | Diamond killifish |
| Fundulus zebrinus | Jordan & Gilbert, 1883 | Plains killifish |
| Leptolucania ommata | (Jordan, 1884) | Pygmy killifish |
| Lucania goodei | Jordan, 1880 | Bluefin killifish |
| Lucania interioris | Hubbs & Miller, 1965 | Cuatrocienegas killifish |
| Lucania parva | (Baird & Girard, 1855) | Rainwater killifish |