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

    Tubificid Worms (Tubifex Worms)

    Tubifex spp. and other aquatic tubificid annelids
    Image of a red velvet ant

    Velvet Ants

    Numerous species in Missouri
    image of a Wheel Bug, Side View

    Wheel Bug

    Arilus cristatus
    Venomous Icon

    Venomous

    Photo of Williams' crayfish.

    Williams’ Crayfish

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

    Woodland Crayfish

    Faxonius hylas (formerly Orconectes hylas)

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