Photo of backswimmer, side view

    Backswimmers

    About 32 North American species in the family Notonectidae
    Photo of a devil crayfish.

    Devil Crayfish

    Lacunicambarus aff. diogenes
    ellipse

    Ellipse and Bleedingtooth

    Venustaconcha ellipsiformis and V. pleasii
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    Illustration of an orangethroat darter

    Orangethroat Darter

    Etheostoma spectabile
    Photo of a ramshorn snail on a wet rock.

    Ramshorn Snails

    Gyraulus, Helisoma, Menetus, Micromenetus, Planorbula spp.
    Image of a red shiner

    Red Shiner

    Cyprinella lutrensis
    Image of a southern redbelly dace

    Southern Redbelly Dace

    Phoxinus erythrogaster
    Photo of an aquatic tubificid worm among rocks in an aquarium.

    Tubificid Worms (Tubifex Worms)

    Tubifex spp. and other aquatic tubificid annelids