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Missouri Department of Conservation MDC Discover Nature

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Home › Discover Nature › 1/4 to 1/2 inch › 2 to 3 inches › Lowland rivers (southeast Missouri) › Olive › Lowland swamps, ditches and sloughs ›

1/4 to 1/2 inch

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  • Remove 1/4 to 1/2 inch filter 1/4 to 1/2 inch
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  • Remove Lowland swamps, ditches and sloughs filter Lowland swamps, ditches and sloughs
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    Gray, speckled, translucent gelatinous blob cut in half to show structure

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    Two Chinese mysterysnails, out of water, resting on a white surface, with a ruler nearby for scale

    Chinese Mysterysnail

    Cipangopaludina chinensis malleata (syn. Bellamya chinensis)
    invasive icon

    Invasive

    Photo of a spothanded crayfish viewed from above on white background.

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    About 36 species in Missouri
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    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    Photo of a leech

    Leeches

    Various species in the subclass Hirudinea
    Photo of a pink planarian on a rock.

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    Species in genera Dugesia, Planaria, etc.

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