Sue Daly / Feather duster fan worm (Sabella spallanzanii) with tentacles moving in the current, Sark, British Channel Islands, UK, August.

Pascal Kobeh / Field of Peacock feather dusters / Spiral tube-worms (Sabella spallanzanii), Canary Islands

Pascal Kobeh / Spiral tube-worm (Sabella spallanzanii), Gozo Island, Malta. Mediterranean Sea.

Franco Banfi / Spirograph worm (Sabella spallanzani) Ischia Island, Italy, Tyrrhenian Sea, Mediterranean

Franco Banfi / Tube worm (Sabella spallanzani) Banco di Santa Croce, Massa Lubrense, Sorrento Peninsula, Costa Amalfitana, Italy, Tyrrhenian Sea, Mediterranean.