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

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    image of a Carolina Grasshopper

    Carolina Grasshopper

    Dissosteira carolina
    Click beetle resting on a brick wall

    Click Beetles

    Approximately 1,000 species in North America
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    Photo of a leech

    Leeches

    Various species in the subclass Hirudinea
    Red milkweed beetle eating a common milkweed leaf.

    Longhorned Beetles (Borers; Sawyer Beetles)

    About 1,000 species in North America north of Mexico
    Narceus Millipede crawling across gravel

    Millipedes

    More than 900 species in North America north of Mexico
    Photo of an adult stonefly on a leaf

    Stoneflies

    Nearly 700 species in North America north of Mexico
    Photo of a pink planarian on a rock.

    Turbellarians (Planarians; Free-Living Flatworms)

    Species in genera Dugesia, Planaria, etc.