Nudibranch

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    Glaucus atlanticus

    Order: NUDIBRANCHIA
    Suborder: AEOLIDINA
    Family: Glaucidae

    I found these 2 nudibranches washed up on Surfers Paradise Beach in Queensland Australia. The larger one is about 35 mm in length. Glaucus atlanticus are often washed up on beaches along with Physalia Jellyfish (a.k.a Portuguese Man Of War or Bluebottle Jellyfish). The reason for this is that Glaucus feed on Physalia and are also at the mercy of the ocean currents and winds.

    Glaucus feed almost exclusively on Physalia, and it appears that they are able to select the MOST venomous of Physalia's stinging cells (nematocysts) for their own use. They store the nematocysts in special sacs (cnidosacs) at the tip of their cerata. (Cerata are the fan-like appendages.) So, NEVER touch these guys!!

    Dzwjedziak, Rossana Henriques, and 81 other people added this photo to their favorites.

    View 13 more comments

    1. Lookfar 78 months ago | reply

      I didn't know they were nudibranchs - the ones I've seen diving are much larger.

    2. LJWDevon 78 months ago | reply

      Wow they're brilliant - wonderful photo of them!

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      Seen on your photo stream. (?)

    3. kentlim26 78 months ago | reply

      this look like those people stick tattoo. picture design. this is very interesting to me!!

    4. tarotastic 75 months ago | reply

      Pierre: No, I didn't specifically!! But... I'm very happy for such an excellent resource as Wikipedia to be using my pictures. Thanks for letting me know though!!

    5. antonious (www.anthonyaphoto.com) 75 months ago | reply

      WOW!!

      Your work has inspired me!!
      You are INVITED to post it in...


      The Nature Group

    6. pierre pouliquin 75 months ago | reply

      It seems to be the same (great) picture.

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      Seen in my recent comments. (?)

    7. wiccked 73 months ago | reply

      This is a very cool photos of these little creatures!!

      I have one too, so after seeing yours I clicked the tag link to see who else has them. They're really odd looking little things!

    8. citlali* 72 months ago | reply

      THese are amazing, so beautiful = ]

    9. Marzua [deleted] 66 months ago | reply

      Very nice!!

    10. Uncle Foto 66 months ago | reply

      Wow : Fantastic !!

      (Seen from Explore / Interestingness / January 10 2007)

    11. adlin 66 months ago | reply

      they look like frickn aliens, just fantastic. beautiful animals...hard to believe they are from this planet

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      Seen in the interestingness archives. (?)

    12. jordsta 64 months ago | reply

      Congrats! This photo has been featured on Wikipedia!

      I actually live on the Gold Coast, never have I ever seen such a strange, small creature like that...

    13. Marnua (outline) [deleted] 63 months ago | reply

      Beautiful!!

    14. MISH1972 51 months ago | reply

      awesome!!!! Now I know I want to see all Australia has to offer.

    15. Lisa Binka 50 months ago | reply

      lol, i found one of these when i was about 10. i didn't know what it was, so i picked it up, however i didn't get stung by it. i am glad they eat man of war, i got stung by one of those once, that hurt a lot.

    16. rockwalski 50 months ago | reply

      Hi, I'm an admin for a group called Tide Pool Photography, and we'd love to have this added to the group!

    17. rockwalski 50 months ago | reply

      How did you get the white backdrop--photoshop??

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