Alligator gar side view photo with black background

    Alligator Gar

    Atractosteus spatula (formerly Lepisosteus spatula)
    Arkansas darter, female, side view photo with black background

    Arkansas Darter

    Etheostoma cragini
    Banded sculpin side view photo with black background

    Banded Sculpin

    Cottus carolinae
    Black buffalo side view photo with black background

    Black Buffalo

    Ictiobus niger
    Blackspotted topminnow side view photo with black background

    Blackspotted Topminnow

    Fundulus olivaceus
    Blackstripe topminnow, male in spawning colors, side view photo with black background

    Blackstripe Topminnow

    Fundulus notatus
     Central mudminnow side view photo with black background

    Central Mudminnow

    Umbra limi
    exclamation mark

    Endangered

    Central stoneroller male in spawning colors, side view photo with black background

    Central Stoneroller

    Campostoma pullum (syn. C. anomalum pullum)
    Crystal darter side view photo with black background

    Crystal Darter

    Crystallaria asprella
    exclamation mark

    Endangered

    Fathead minnow side view photo with black background

    Fathead Minnow

    Pimephales promelas
    Goldstripe darter side view photo with black background

    Goldstripe Darter

    Etheostoma parvipinne
    exclamation mark

    Endangered

    Grass carp side view photo with black background

    Grass Carp

    Ctenopharyngodon idella
    invasive icon

    Invasive

    Greenside darter female, side view photo with black background

    Greenside Darter

    Etheostoma blennioides
    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

    Highfin carpsucker breeding male side view photo with black background

    Highfin Carpsucker

    Carpiodes velifer
    Johnny darter, female, side view photo with black background

    Johnny Darter

    Etheostoma nigrum
    Longnose darter side view photo with black background

    Longnose Darter

    Percina nasuta
    exclamation mark

    Endangered

    Mountain madtom side view photo with black background

    Mountain Madtom

    Noturus eleutherus
    exclamation mark

    Endangered

    Neosho madtom side view photo with black background

    Neosho Madtom

    Noturus placidus
    exclamation mark

    Endangered

    Niangua darter female, side view photo with black background

    Niangua Darter

    Etheostoma nianguae
    exclamation mark

    Endangered

    Northern brook lamprey side view photo with black background

    Northern Brook Lamprey

    Ichthyomyzon fossor
    Northern hog sucker side view photo with black background

    Northern Hog Sucker

    Hypentelium nigricans
    Northern rock bass, or goggle-eye, side view photo with black background

    Northern Rock Bass (Goggle-Eye)

    Ambloplites rupestris
    Northern studfish female, side view photo with black background

    Northern Studfish

    Fundulus catenatus
    Orangethroat darter female, side view photo with black background

    Orangethroat Darter

    Etheostoma spectabile
    Quillback side view photo with black background

    Quillback

    Carpiodes cyprinus
    Redfin darter side view photo with black background

    Redfin Darter

    Etheostoma whipplei
    exclamation mark

    Endangered

    Slender madtom side view photo with black background

    Slender Madtom

    Noturus exilis
    Smallmouth buffalo side view photo with black background

    Smallmouth Buffalo

    Ictiobus bulbalus
    Northern snakehead side view illustration with black background

    Snakeheads

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

    Invasive

    Spring cavefish side view photo with black background

    Spring Cavefish

    Forbesichthys agassizi
    exclamation mark

    Endangered

    Sturgeon chub side view photo with black background

    Sturgeon Chub

    Macrhybopsis gelida
    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