Sue Daly / Spiral Fan Worm (Bispira volutacornis). Maseline Harbour, Sark, British Channel Islands, July.
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Christophe Courteau / Calcerous tubes of Keelworm {Pomatoceros lamarcki} on rock Brittany France
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Georgette Douwma / Christmas tree worms (Spirobranchus giganteus) on Porites coral boulder, Andaman Sea, Thailand
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Sue Daly / Tube worm / Double sprial worm (Bispira volutacornis) Channel Islands, UK June
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Nick Upton / Keelworm tubes (Pomatoceros lamarcki) attached to sandstone boulder exposed on a low spring tide, North Berwick, East Lothian, UK, July.
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Nick Upton / Close up of Keelworm tube (Pomatoceros lamarcki) attached to sandstone boulder exposed on a low spring tide, North Berwick, East Lothian, UK, July.
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Nick Upton / Spiral tubeworm (Spirorbis spirorbis) calcareous tubes attached to stems of Toothed wrack (Fucus serratus) exposed at low tide, Crail, Scotland, UK, July.
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Nick Upton / Spiral tubeworm (Spirorbis spirorbis) calcareous tubes attached to stems of Toothed wrack (Fucus serratus) exposed at low tide, Crail, Scotland, UK, July.
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Nick Upton / Spiral tubeworm (Spirorbis spirorbis) calcareous tubes attached to stems of Toothed wrack (Fucus serratus) exposed at low tide, Crail, Scotland, UK, July
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Alex Mustard / 2020VISION / Peacock worms (Sabella pavonina), sealoch anemones (Protanthea simplex) and various brittlestars colonise a boulder on the floor of a Scottish sea loch, Loch Duich, Scotland, UK, June
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Alex Mustard / Feather duster worms (Bispira brunnea) colony extended and filter feeding in the clear blue waters of The Bahamas, Caribbean Sea.
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Pete Oxford / Christmas tree worm (Spirobranchus giganteus) on Star coral (Montastraea cavernosa) Bonaire, Netherlands Antilles, Caribbean
