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Phragmatopoma californica, commonly known as the sandcastle worm, the honeycomb worm [1] or the honeycomb tube worm, [2] is a reef-forming marine polychaete worm belonging to the family Sabellarididae. It is dark brown in color with a crown of lavender tentacles and has a length of up to about 7.5 centimeters (3.0 in). [3]
Lanice conchilega, commonly known as the sand mason worm, is a species of burrowing marine polychaete worm. It builds a characteristic tube which projects from the seabed, consisting of cemented sand grains and shell fragments with a fringe at the top. Polychaetes, or marine bristle worms, have elongated bodies divided into many segments.
At first it is short but it is widened and extended as the worm grows, sometimes reaching a length of more than 7 centimetres (2.8 in) [2] and a diameter of 4 millimetres (0.16 in). The worm is largely hidden within the tube but it has a yellow or golden-coloured operculum and a number of fine tentacles which it extends in order to feed. [ 3 ]
Sandcastle worm (Phragmatopoma californica This page was last edited on 28 December 2019, at 19:02 (UTC). Text is available under the Creative Commons Attribution ...
Sabellaria alveolata, (also known as the honeycomb worm), is a reef-forming polychaete. It is distributed around the Mediterranean Sea , and from the north Atlantic Ocean to south Morocco . It is also found in the British Isles at its northern limit in the northeast Atlantic. [ 2 ]
Lanice, (also known as the sand mason worm), is a genus of burrowing marine polychaetes (commonly referred to as "bristle worms") typically found in the littoral zone. A Lanice conchilega tube on the Dutch Wadden Sea shore. L. conchilega is a common sight on European beaches and in tide pools.
Riftia pachyptila, a species known as giant tube worms [1] Lamellibrachia, a genus; Serpulidae, a family; Sabellidae, the family containing feather duster worms; Phoronida, the phylum containing horseshoe worms; Microconchida, an order of extinct tubeworms; Kuphus polythalamia, a bivalve mollusk species whose common name is giant tube worm
After that the sand is kept loose by a current of water driven through the burrow from the hind end by the waves of contraction passing along the worm's body. Lugworms are not typically visible, but the casts produced by their burrowing make distinctive patterns in damp sand