Closeup of alligator gar held in a person's hands prior to being released into water

    Alligator Gar

    Atractosteus spatula (formerly Lepisosteus spatula)
    Image of a bigmouth buffalo

    Bigmouth Buffalo

    Ictiobus cyprinellus
    A long fish with prominent dorsal and pectoral fins

    Black Carp

    Mylopharyngodon piceus
    invasive icon

    Invasive

    Image of a blackspotted topminnow

    Blackspotted Topminnow

    Fundulus olivaceus
    Image of a blackstripe topminnow

    Blackstripe Topminnow

    Fundulus notatus
    Color illustration of Central Mudminnow

    Central Mudminnow

    Umbra limi
    exclamation mark

    Endangered

    channel catfish

    Channel Catfish

    Ictalurus punctatus
    Image of a fathead minnow

    Fathead Minnow

    Pimephales promelas
    No photo available

    Goldstripe Darter

    Etheostoma parvipinne
    exclamation mark

    Endangered

    Image of a Johnny darter fish

    Johnny Darter

    Etheostoma nigrum
    No photo available

    Longnose Darter

    Percina nasuta
    exclamation mark

    Endangered

    Illustration of a northern brook lamprey

    Northern Brook Lamprey

    Ichthyomyzon fossor
    Image of a northern rock bass

    Northern Rock Bass (Goggle-Eye)

    Ambloplites rupestris
    Image of a slender madtom

    Slender Madtom

    Noturus exilis
    Illustration of northern snakehead, viewed from side

    Snakeheads

    Channa spp. and Parachanna spp., including C. argus
    invasive icon

    Invasive

    Color illustration of spring cavefish, an endangered species

    Spring Cavefish

    Forbesichthys agassizi
    exclamation mark

    Endangered

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