I-NSC

Too bad about your HDD!

Well, I don't think it's a Paracaudina or another sea cucumber.  Paracaudina species - especially young individuals - have translucent skin and it's easy to see the 5 muscle bands characteristic of holothuroids.  They should be visible in an animal this size.  I believe it's probably an acoel worm.  They aren't noticed very much because of their small size.  Until recently they were classified with flatworms but now they have their own phylum - Acoelomorpha.

Thank you Leslie,

I will look into the acoel worms to see if there are any other similarities and information. It is interesting to know that it is something not too observed due to it's size but when your waiting for a videographer dive buddy and looking around at a single spot, you tend to notice the smallest of things moving on the ground.

Do you have other photos of it that you can post?  Or perhaps a enlarged crop?

Dear Leslie,

I am afraid that I do not have any other images of the subject as I lost most of the images when my HDD crashed.

A little update: I tried to mount the magnet of a friends strobe and it is perfectly fine. so the reason for manual mode malfuction was the corrosion of the magnet.

serge

Glad to hear that your strobe is working again.

We have a sand dwelling holothurian down here that has similar shape and smooth texture. Paracudina australis, maybe something in Caudinidae???
http://museumvictori...ndenspiegel.pdf

Cheers,
Jim.

Interesting... thanks Jim. Will have to read up on the papers.

Actual images of items added for your reference.