Photo of a saddleback crayfish.

    Saddleback Crayfish

    Faxonius medius (formerly Orconectes medius)
    Photo of a spothanded crayfish viewed from above on white background.

    Crayfishes

    About 36 species in Missouri
    Photo of Williams' crayfish.

    Williams’ Crayfish

    Faxonius williamsi (formerly Orconectes williamsi)
    Photo of an Ozark crayfish.

    Ozark Crayfish

    Faxonius ozarkae (formerly Orconectes ozarkae)
    Photo of a woodland crayfish.

    Woodland Crayfish

    Faxonius hylas (formerly Orconectes hylas)
    Photo of a Big Creek crayfish.

    Big Creek Crayfish

    Faxonius peruncus (formerly Orconectes peruncus)
    Photo of a water nymph crayfish, side view of specimen carefully arranged against black background

    Water Nymph Crayfish

    Faxonius nais (formerly Orconectes nais)
    Photo of a Neosho midget crayfish.

    Neosho Midget Crayfish

    Faxonius macrus (formerly Orconectes macrus)
    Photo of a paintedhand mudbug carefully arranged against a black background

    Paintedhand Mudbug

    Lacunicambarus polychromatus
    Photo of a gravid Mississippi grass shrimp in an aquarium.

    Mississippi Grass Shrimp

    Palaemonetes kadiakensis