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

    Darters

    Etheostoma, Percina, Ammocrypta, and Crystallaria spp.
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    lilliput

    Lilliput

    Toxolasma parvus
    Photo of a longpincered crayfish.

    Longpincered Crayfish

    Faxonius longidigitus (formerly Orconectes longidigitus)
    Southern redbelly dace male in spawning colors, side view photo with black background

    Minnows

    Notropis, Cyprinella, Hybognathus, Luxilus, and others
    Water springtails congregate in water above soggy dead leaves

    Water Springtail

    Podura aquatica