Possible Window Slide

[Will Hatchell]

With regard to the discussion of photosynthesis and flora at depth: A sea cucumber is an animal, not a plant. No photosynthesis. They are found as deep as 2000 meters (6500 feet), according to this website: http://www.divernet.com/Marine-Life/951174/the_secret_lives_of_sea_cucumbers.html.

So there is no reason why it cannot be a sea cucumber at this depth. Whether it is, and whether those are rivets or bumps on an echinoderm, or something else entirely, is another matter of course.

~Ian

Ian,

Kind thanks for that information on sea cucumbers which I did not have at hand – very interesting and helpful –  you've added to my erudition needless to say! All the best... :)

[Tim Mellon]

Thanks, Tim.

It is the horizontal piece that is such an eye-grabber to me, regarding the 'rivet' placement consideration.  I just couldn't account for how it related to the vertical piece - but as you noted, we don't know that they are connected.

Interesting, thanks!

Tantalus would be licking his chops!

[Chris Johnson]

And the bumps on the surface of sea cucumbers just don't seem as regular as those in the photo object.

That had crossed my mind.  I also look at the object as being something like an Awl, handle up top and screw feature below and the regular raised 'bumps' being the light catching the screw.

Rivets or raised?