American eel side view photo with black background

    American Eel

    Anguilla rostrata
    Photo of backswimmer, side view

    Backswimmers

    About 32 North American species in the family Notonectidae
    Bluegill male in spawning colors, side view photo with black background

    Bluegill

    Lepomis macrochirus
    Brook silverside side view photo with black background

    Brook Silverside

    Labidesthes sicculus
    Gray, speckled, translucent gelatinous blob cut in half to show structure

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    Photo of crane fly larva

    Crane Fly Larvae

    There are over 500 species of crane flies in North America.
    Cypress minnow side view photo with black background

    Cypress Minnow

    Hybognathus hayi
    exclamation mark

    Endangered

    Orangethroat darter male in spawning colors, side view photo with black background

    Darters

    Etheostoma, Percina, Ammocrypta, and Crystallaria spp.
    deertoe

    Deertoe

    Truncilla truncata
    fatmucket

    Fatmucket

    Lampsilis siliquoidea
    fragile papershell

    Fragile Papershell

    Leptodea fragilis
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    Golden shiner male, side view photo with black background

    Golden Shiner

    Notemigonus crysoleucas
    Green sunfish male, side view photo with black background

    Green Sunfish

    Lepomis cyanellus
    Harlequin darter side view photo with black background

    Harlequin Darter

    Etheostoma histrio
    exclamation mark

    Endangered

    No photo available

    Hydras

    Various species in the genus Hydra
    maple leaf

    Mapleleaf

    Quadrula quadrula
    Southern redbelly dace male in spawning colors, side view photo with black background

    Minnows

    Notropis, Cyprinella, Hybognathus, Luxilus, and others
    mucket

    Mucket

    Actinonaias ligamentina
    Northern pike side view photo with black background

    Northern Pike

    Esox lucius
    paper pondshell

    Paper Pondshell (Paper Floater)

    Utterbackia imbecillis
    pimpleback

    Pimpleback

    Quadrula pustulosa
    pink mucket

    Pink Mucket

    Lampsilis abrupta
    exclamation mark

    Endangered

    plain pocketbook

    Plain Pocketbook

    Lampsilis cardium
    pond mussel

    Pond Mussel

    Ligumia subrostrata
    Photograph of Purple Wartyback freshwater mussel shell exterior view
    Redear sunfish side view photo with black background

    Redear Sunfish

    Lepomis microlophus
    Spotted bass side view photo with black background

    Spotted Bass

    Micropterus punctulatus
    Threadfin shad side view photo with black background

    Threadfin Shad

    Dorosoma petenense
    threeridge

    Threeridge

    Amblema plicata
    Photo of a pink planarian on a rock.

    Turbellarians (Planarians; Free-Living Flatworms)

    Species in genera Dugesia, Planaria, etc.
    wabash pigtoe

    Wabash Pigtoe

    Fusconaia flava
    Photo of a collared water scavenger beetle showing back.

    Water Scavenger Beetles

    Beetles in the family Hydrophilidae
    yellow sandshell

    Yellow Sandshell

    Lampsilis teres