Pink waving legs!

Pink waving legs!

Observation - Pink waving legs!. Description: Wondered if this could be a burrowing brittle star or some kind of annelid. V. helpful suggestion from a marine biologist contact who says maybe it is a Cirratulid worm - possibly Cirratulus cirratus (Muller) or maybe Cirriformia tentaculata (Montagu). C

Wondered if this could be a burrowing brittle star or some kind of annelid. V. helpful suggestion from a marine biologist contact who says maybe it is a Cirratulid worm - possibly Cirratulus cirratus (Muller) or maybe Cirriformia tentaculata (Montagu). Could anyone confirm please?