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Thank you everyone for making this group a beautiful place!

Also - if you have photos of fauna from other phyla, you may want to check out these groups: Annelida, Arthropoda, Echinodermata, Mollusca, and Porifera!


  • Floating Colony ID

    I'm not even certain that this is a Cnidarian. It was about two feet long and a...

    Velo Steve65 months ago0 replies

  • What is this?

    Hello, I think it is a sort of hydro coral, but I can't find details. I took th...

    le congre118 months ago1 replies

  • Blue Button Facts

    Blue Button "Jellyfish"-Squared Blue Buttons are not true jellyfish, but are Chondrophores. These are actual...

    Take Me As I Amages ago0 replies

  • Show off those Cnidarians with symbiotic algae!

    New group for seagrasses, seaweeds, phytoplankton, and coral/some anemones (beca...

    the kelp knotages ago0 replies

  • New group for New England species

    I'm a marine ecologist who recently moved to Connecticut from California. To bet...

    the kelp knotages ago0 replies

  • What is it? (ID Help)

    Got a cnidarian that needs ID-ing? Post it here so we can help! Also be sure ...

    carissa.thomasages ago2 replies

  • Rarest Cnidaria Find

    What's the rarest cnidarian you've come across? Post pictures too if you ha...

    carissa.thomasages ago2 replies

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