Christmas Tree Worm. Christmas tree worms spirobranchus giganteus are a type of polychaete a group of segmented worms that contains over 13 000 species. The christmas tree shape shown in the image is the animal s radioles which can be up to about 1 1 2 inches in diameter.
Christmas tree worms come in a variety of bright colors. The christmas tree worm is a colorful marine worm with beautiful spiraling plumes that resemble a fir tree. And just like their cousins the sea mice and feather.
And just like their cousins the sea mice and feather.
These cone shaped worms are one of the most widely recognized sedentary polychaete worms. The christmas tree worm is normally found in the aquarium store as several individuals attached to a small piece of rock or live rock rubble. Spirobranchus giganteus commonly known as the christmas tree worm is a tube building polychaete worm belonging to the family serpulidae. They aren t very big averaging about 1 5 inches in length.