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
    brokenray

    Arkansas Brokenray

    Lampsilis reeveiana
    Black crappie, male in spawning colors, side view photo with black background

    Black Crappie

    Pomoxis nigromaculatus
    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
    Photo of a bristly cave crayfish, viewed from the side.

    Bristly Cave Crayfish

    Cambarus setosus
    butterfly

    Butterfly

    Ellipsaria lineolata
    Common shiner side view photo with black background

    Common Shiner

    Luxilus cornutus
    Crystal darter side view photo with black background

    Crystal Darter

    Crystallaria asprella
    exclamation mark

    Endangered

    deertoe

    Deertoe

    Truncilla truncata
    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
    Color illustration of Flathead Chub

    Flathead Chub

    Platygobio gracilis
    exclamation mark

    Endangered

    fragile papershell

    Fragile Papershell

    Leptodea fragilis
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    giant floater

    Giant Floater

    Pygandon grandis
    Photo of several prosobranch pond snails crawling on a rock.

    Gilled Aquatic Snails (Prosobranch Pond Snails)

    Over 20 Missouri species in former subclass Prosobranchia
    Gizzard Shad

    Gizzard Shad

    Dorosoma cepedianum
    Photo of a deer fly larva, probably in a petri dish, on a gray background.

    Horse and Deer Fly Larvae

    Tabanus, Chrysops, and related genera
    No photo available

    Hydras

    Various species in the genus Hydra
    Illustration of a largemouth bass

    Largemouth Bass

    Micropterous salmoides
    lilliput

    Lilliput

    Toxolasma parvus
    No photo available

    Longnose Darter

    Percina nasuta
    exclamation mark

    Endangered

    monkeyface

    Monkeyface

    Quadrula metanevra
    Photograph of several mosquito larvae resting at water surface

    Mosquito Larvae

    There are about 50 species of mosquitoes in our state.
    mucket

    Mucket

    Actinonaias ligamentina
    pimpleback

    Pimpleback

    Quadrula pustulosa
    pink mucket

    Pink Mucket

    Lampsilis abrupta
    exclamation mark

    Endangered

    pistolgrip

    Pistolgrip (Buckhorn)

    Tritogonia verrucosa
    plain pocketbook

    Plain Pocketbook

    Lampsilis cardium
    pond mussel

    Pond Mussel

    Ligumia subrostrata
    Illustration of a redfin darter male in breeding colors.

    Redfin Darter

    Etheostoma whipplei
    exclamation mark

    Endangered

    round pigtoe

    Round Pigtoe

    Pleurobema sintoxia
    Photo of a Salem cave crayfish.

    Salem Cave Crayfish

    Cambarus hubrichti
    scaleshell

    Scaleshell

    Leptodea leptodon
    exclamation mark

    Endangered

    Photo of amphipod on a rock

    Scuds and Sideswimmers (Amphipods)

    Species in the crustacean order Amphipoda
    Photograph of Sheepnose freshwater mussel shell exterior view

    Sheepnose (Bullhead)

    Plethobasus cyphyus
    exclamation mark

    Endangered

    Snuffbox

    Snuffbox

    Epioblasma triquetra
    exclamation mark

    Endangered

    Southern cavefish side view photo with black background

    Southern Cavefish

    Typhlichthys subterraneus
    Spectaclecase

    Spectaclecase

    Cumberlandia monodonta
    spike

    Spike (Ladyfinger)

    Elliptio dilatata
    Image of a spotted bass

    Spotted Bass

    Micropterus punctulatus
    illustration of a striped bass, side view

    Striped Bass

    Morone saxatilis
    threehorn wartyback

    Threehorn Wartyback

    Obliquaria reflexa
    threeridge

    Threeridge

    Amblema plicata
    Photo of a pink planarian on a rock.

    Turbellarians (Planarians; Free-Living Flatworms)

    Species in genera Dugesia, Planaria, etc.

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