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Worm (?) - found it on the sandy bottom in Cozumel

Discussion in 'Name that Critter' started by beachnik, Nov 20, 2015.

  1. beachnik

    beachnik Nassau Grouper

    # of Dives: I'm a Fish!
    Location: Manhattan Beach CA
    158
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    The aluminum rod that you see in the screen capture is about 3/8 inch diameter. You can see a bit of a pointy tail at one end. The other end is buried in the sand and wants to stay there.

    Any ideas?

    IMG_5999-2.jpg Screen Shot 2015-11-20 at 4.22.28 PM.jpg
     
    Jax likes this.
  2. TheRealScubaSteve

    TheRealScubaSteve Nassau Grouper

    # of Dives: 200 - 499
    Location: Massachusetts
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  3. Kharon

    Kharon Solo Diver

    # of Dives: 200 - 499
    Location: Upstate NY
    4,193
    4,184
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    Looks exactly like a millipede. Don't know if they go underwater but it sure looks like one or something very, very closely related.
     
  4. beachnik

    beachnik Nassau Grouper

    # of Dives: I'm a Fish!
    Location: Manhattan Beach CA
    158
    15
    18
    Thanks Karon. I think you're on to something there. I did a quick search - haven't had enough time to dig through it - but it looks promising.

    We don't see a lot of millipedes here in Manhattan Beach, so that thought hadn't occurred to me. But you are right, it does look like a millipede. It might not be apparent from the photos, but there are very tiny leg like structures on the underside - just barely visible.

    ---------- Post added November 21st, 2015 at 10:01 AM ----------

    Further to thatÂ…

    It looks like this is a critter that might commonly be called 'rag worm' or 'clam worm'. Probably from the Family: Nereididae (formerly Nereidae).

    There are about 500 mostly marine species and I haven't found any photos - taken in Cozumel - of this same critter.

    I've done about 800 dives in Cozumel, this is the first time I've seen this. They're probably everywhere and I didn't notice - wouldn't be the first time : )

    Which reminds me, before I left Cozumel a week ago, I showed the video to a DM whom I've dove with for years, he got a smile on his face and said "I've never seen that before"

    : )
     
  5. Diver0001

    Diver0001 Instructor, Scuba

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    There are many species of aquatic worms so it's not surprising that you found one.

    I don't recognize this particular worm off hand but you might want to try looking at Bobbit worms. If you got a look at the head-end it would help. In any case it has a "segmented" structure so you should include this in your search parameters.

    R..
     
  6. CuzzA

    CuzzA Solo Diver

    15,097
    24,951
    113
    Black Eunicid Worm
     

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