Photo of a papershell crayfish, also called calico crayfish.

    Calico Crayfish (Papershell Crayfish)

    Faxonius immunis (formerly Orconectes immunis)
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    pink heelsplitter

    Pink Heelsplitter

    Potamilus alatus
    pink papershell

    Pink Papershell

    Potamilus ohiensis
    Photograph of Purple Wartyback freshwater mussel shell exterior view
    spike

    Spike (Ladyfinger)

    Elliptio dilatata