American eel side view photo with black background

    American Eel

    Anguilla rostrata
    Black bullhead side view photo with black background

    Black Bullhead

    Ameiurus melas
    Chestnut lamprey side view photo with black background

    Chestnut Lamprey

    Ichthyomyzon castaneus
    Illustration of an adult flathead catfish

    Flathead Catfish

    Pylodictis olivaris
    Color illustration of Mountain Madtom

    Mountain Madtom

    Noturus eleutherus
    exclamation mark

    Endangered

    Illustration of a northern brook lamprey

    Northern Brook Lamprey

    Ichthyomyzon fossor
    Image of a slender madtom

    Slender Madtom

    Noturus exilis

See Also

Photo of a three-toed amphiuma in an aquarium.

Three-Toed Amphiuma

Amphiuma tridactylum
Photo of researcher holding a gilled siren

Western Lesser Siren

Siren intermedia nettingi