- Fundulus albolineatus, Whiteline Topminnow
- Fundulus auroguttatus
- Fundulus bermudae
- Fundulus bifax, Stippled Studfish
- Fundulus blairae, Western Starhead Topminnow
- Fundulus catenatus, Northern Studfish
- Fundulus chrysotus, Golden Topminnow
- Fundulus cingulatus, Banded Topminnow
- Fundulus confluentus, Marsh Killifish
- Fundulus diaphanus, Banded Killifish
- Fundulus diaphanus diaphanus, Eastern Banded Killifish
- Fundulus diaphanus_diaphanus, Banded Killifish
- Fundulus diaphanus_menona
- Fundulus dispar, Starhead Topminnow
- Fundulus escambiae, Russetfin Topminnow
- Fundulus euryzonus, Broadstripe Topminnow
| - Fundulus grandis, Gulf Killifish
- Fundulus grandis_grandis, Gulf Killifish
- Fundulus grandis_saguanus
- Fundulus grandissimus
- Fundulus heteroclitus, Mummichog
- Fundulus heteroclitus_heteroclitus, Mummichog
- Fundulus heteroclitus_macrolepidotus
- Fundulus jenkinsi, Saltmarsh Topminnow
- Fundulus julisia, Barrens Topminnow
- Fundulus kansae, Northern Plains Killifish
- Fundulus lima, Killifish
- Fundulus lineolatus, Lined Topminnow
- Fundulus luciae, Spotfin Killifish
- Fundulus majalis, Striped Killifish
- Fundulus notatus, Blackstripe Topminnow
- Fundulus nottii, Bayou Topminnow
| - Fundulus olivaceus, Blackspotted Topminnow
- Fundulus parvipinnis, California Killifish
- Fundulus persimilis
- Fundulus pulvereus, Bayou Killifish
- Fundulus rathbuni, Speckled Killifish
- Fundulus relictus
- Fundulus rubrifrons, Redface Topminnow
- Fundulus sciadicus, Plains Topminnow
- Fundulus seminolis, Seminole Killifish
- Fundulus similis, Longnose Killifish
- Fundulus sp
- Fundulus stellifer, Southern Studfish
- Fundulus waccamensis, Waccamaw Killifish
- Fundulus zebrinus, Plains Killifish
- Fundulus zebrinus kansae, Plains Killifish
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