Hi, I have a serious problem wit identification of this sausage-like worm (totally I have few of them). It was collected in Rijpfjorden, a high arctic fjord of Svalbard, at a soft sediment bed, depth about 250m.
It has mouth on the anterion end and anus on the posterior end, 8 rows of musscles, the intestine is strongly spirally coiled.
I excluded priapulids (coiled intestine, no hooks), holoturians (no calcareous ring or skeletal ossicles), sipunculans (anus on the posterior end, 8 musscles) and have no idea what can it be.
Fo me it seems to be an anthozoan species (Edwardsiidae), and in opposite to what you wrote it has probably only a mouth. Please check it again.
The picture with the section: please cut the right hand side (mouth region) in the centre (you only removed the outer mantle) and maybe you will see some small (retracted) tentacles.In your third picture the body part which is sitting in the sediment (left hand side) is visible.
Cheers
Michael
Thanks a lot for help. I managed to cut the right side (mouth region) as Michael proposed and I think that I found those tentacles (arrow). Can you check if I am interpreting it correctly?
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