Saltwater
Christmas tree worm
Spirobranchus giganteus
Serpulidae
Spirobranchus giganteus
Serpulidae
Seen in the wild in Anguilla, Antigua & Barbuda, Aruba, Australia, Bahamas, Belize, Bermuda, Brazil, and 37 more countries.
Spirobranchus giganteus, commonly known as the Christmas tree worm, is a polychaete worm belonging to the family Serpulidae building calcareous tubes. The S. giganteus lives in coral reefs in the Caribbean.