Christmas Tree Worm Anatomy. A hammerhead worm can exchange gametes with another worm via its secretions. As it extends outwards through the tube the multicolored spirals create feeding structures and function as their respiratory system or gills.
The christmas tree worm is a colorful marine worm with beautiful spiraling plumes that resemble a fir tree. Christmas tree worms come in a variety of bright colors. The adult lifespan can extend to up to 30 years nishi 1999.
The circular muscles are located outside of the longitudinal muscles to allow for peristalitic movement.
Christmas tree worms build calcareous tubes up to 20cm long which become embedded into the coral skeleton by extending their tube towards the living tissue smith 1984. The worms most distinct features are two crowns shaped like christmas trees. A hammerhead worm can exchange gametes with another worm via its secretions. They aren t very big averaging about 1 5 inches in length.