Crystal darter side view photo with black background

    Crystal Darter

    Crystallaria asprella
    exclamation mark

    Endangered

    Grotto sculpin side view photo with black background

    Grotto Sculpin

    Cottus specus
    exclamation mark

    Endangered

    Harlequin darter side view photo with black background

    Harlequin Darter

    Etheostoma histrio
    exclamation mark

    Endangered

    Longnose darter side view photo with black background

    Longnose Darter

    Percina nasuta
    exclamation mark

    Endangered

    Ozark cavefish side view photo with black background

    Ozark Cavefish

    Amblyopsis rosae
    exclamation mark

    Endangered

    Redfin darter side view photo with black background

    Redfin Darter

    Etheostoma whipplei
    exclamation mark

    Endangered

    Southern cavefish side view photo with black background

    Southern Cavefish

    Typhlichthys subterraneus
    Swamp darter side view photo with black background

    Swamp Darter

    Etheostoma fusiforme
    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