American eel side view photo with black background

    American Eel

    Anguilla rostrata
    Bowfin side view photo with black background

    Bowfin

    Amia calva
    Channel catfish side view photo with black background

    Channel Catfish

    Ictalurus punctatus
    Chestnut lamprey side view photo with black background

    Chestnut Lamprey

    Ichthyomyzon castaneus
    Flathead catfish side view photo with black background

    Flathead Catfish

    Pylodictis olivaris

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