Killifishes (Cyprinodontidae)
- Banded killifish (Fundulus diaphanus)
- Mummichog (Fundulus heteroclitus)
- Spotfin killifish (Fundulus luciae)
- Striped killifish (Fundulus majalis)
- Rainwater killifish (Lucania parva)
Read more about this topic: List Of Freshwater Fishes Of Maryland