[Annelida] Unknown Okeanos tubeworm

[Geoff Read]

Hi all,

Ideas please for what is this tubeworm on the bottom, around 5000 metres deep, 'hadal hole', Phoenix Islands, Kiribati mid Pacific.  Filmed from the Okeanos D2 ROV. I can only come up with guessing some sort of ampharetid.

The tube is very large, about 25 cm long.

Geoff
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