Sand Mason Worm (Lanice conchilega), typical structure of tiny hairs covered in grains of sand only 3cm high, Burnmouth, Scotland, UK North Sea

underwater sand mason worm worm worms sea worm sea worms burrowing burrow lanice conchilega tiny hairs hair hairs grains sandy sand one animal burnmouth scotland uk united kingdom seabed sea bottom close up close up close ups close ups north sea sealife sea life