Alabama shad side view photo with black background

    Alabama Shad

    Alosa alabamae
    Photo of an alderfly larva among rocks and gravel in an aquarium.

    Alderfly Larvae

    Sialis spp.
    American eel side view photo with black background

    American Eel

    Anguilla rostrata
    Photo of an aquatic isopod in an aquarium, crawling on a rock.

    Aquatic Pillbugs and Sowbugs (Aquatic Isopods)

    Freshwater members of the crustacean order Isopoda
    Photo of a spotted fishing spider perched on the water's surface amid floating duckweed plants

    Aquatic Spiders

    Dolomedes spp., Tetragnatha spp., and others
    brokenray

    Arkansas Brokenray

    Lampsilis reeveiana
    Arkansas darter, female, side view photo with black background

    Arkansas Darter

    Etheostoma cragini
    Photo of backswimmer, side view

    Backswimmers

    About 32 North American species in the family Notonectidae
    Banded sculpin side view photo with black background

    Banded Sculpin

    Cottus carolinae
    Photo of a belted crayfish, also called Big River crayfish.

    Belted Crayfish (Big River Crayfish)

    Faxonius harrisonii (formerly Orconectes harrisonii)
    Photo of a Big Creek crayfish.

    Big Creek Crayfish

    Faxonius peruncus (formerly Orconectes peruncus)
    Bigmouth buffalo side view photo with black background

    Bigmouth Buffalo

    Ictiobus cyprinellus
    Black buffalo side view photo with black background

    Black Buffalo

    Ictiobus niger
    Black bullhead side view photo with black background

    Black Bullhead

    Ameiurus melas
    Black crappie, male in spawning colors, side view photo with black background

    Black Crappie

    Pomoxis nigromaculatus
    Black River madtom side view photo with black background

    Black River Madtom

    Noturus mayden
    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
    Bleeding shiner male in spawning colors, side view photo with black background

    Bleeding Shiner

    Luxilus zonatus
    Bluegill male in spawning colors, side view photo with black background

    Bluegill

    Lepomis macrochirus
    Brindled madtom side view photo with black background

    Brindled Madtom

    Noturus miurus
    Photo of a bristly cave crayfish, viewed from the side.

    Bristly Cave Crayfish

    Cambarus setosus
    Brown trout female side view photo with black background

    Brown Trout

    Salmo trutta
    Gray, speckled, translucent gelatinous blob cut in half to show structure

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    butterfly

    Butterfly

    Ellipsaria lineolata
    Photo of caddisfly larva with case made of detritus

    Caddisfly Larvae

    Various species in the order Trichoptera
    Central stoneroller male in spawning colors, side view photo with black background

    Central Stoneroller

    Campostoma anomalum (syn. C. pullum)
    Chain pickerel side view photo with black background

    Chain Pickerel

    Esox niger
    Checkered madtom side view photo with black background

    Checkered Madtom

    Noturus flavater
    Chestnut lamprey side view photo with black background

    Chestnut Lamprey

    Ichthyomyzon castaneus
    Photo of a coldwater crayfish.

    Coldwater Crayfish

    Faxonius eupunctus (formerly Orconectes eupunctus)
    exclamation mark

    Endangered

    Common carp side view photo with black background

    Common Carp

    Cyprinus carpio
    invasive icon

    Invasive

    Common shiner side view photo with black background

    Common Shiner

    Luxilus cornutus
    Photo of crane fly larva

    Crane Fly Larvae

    There are over 500 species of crane flies in North America.
    Photo of a spothanded crayfish viewed from above on white background.

    Crayfishes

    About 36 species in Missouri
    Creek chub male in spawning colors, side view photo with black background

    Creek Chub

    Semotilus atromaculatus
    Crystal darter side view photo with black background

    Crystal Darter

    Crystallaria asprella
    exclamation mark

    Endangered

    Photo of a damselfly nymph on rocks in an aquarium.

    Damselfly Larvae

    Species in the suborder Zygoptera
    Orangethroat darter male in spawning colors, side view photo with black background

    Darters

    Etheostoma, Percina, Ammocrypta, and Crystallaria spp.
    deertoe

    Deertoe

    Truncilla truncata
    Photo of a devil crayfish.

    Devil Crayfish

    Lacunicambarus aff. diogenes
    Photo of a dragonfly larva resting on a stone.

    Dragonfly Larvae

    Species in the suborder Anisoptera
    Duskystripe shiner male in spawning colors, side view photo with black background

    Duskystripe Shiner

    Luxilus pilsbryi
    Photograph of Ebonyshell freshwater mussel shell exterior view

    Ebonyshell

    Fusconaia ebena
    exclamation mark

    Endangered

    elephant's ear

    Elephantear

    Elliptio crassidens
    exclamation mark

    Endangered

    elktoe

    Elktoe

    Alasmidonta marginata
    ellipse

    Ellipse and Bleedingtooth

    Venustaconcha ellipsiformis and V. pleasii
    fatmucket

    Fatmucket

    Lampsilis siliquoidea
    Photo of a fishfly larva crawling among rocks in an aquarium.

    Fishfly Larvae

    Chauliodes, Neohermes, and Nigronia spp. (in eastern US)
    Flathead chub side view photo with black background

    Flathead Chub

    Platygobio gracilis
    exclamation mark

    Endangered

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