Guardian Nature School Contact Blog Project Noah Facebook Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!
nature school apple icon

Nature School For Teachers - Fall 2020 Launch! visit nature school

Christmas Tree Worm

Spirobranchus giganteus

Description:

They comes in variety of colours, like rainbow & more - red, orange, yellow, green, blue, indigo, violet, brown, grey, white and other shades. Spirobranchus giganteus, commonly known as Christmas tree worms, are tube-building polychaete worms belonging to the family Serpulidae. The worm is aptly named, both its common and Latin names refer to the two chromatically hued spiral structures, the most common feature seen by divers. The multicolored spirals are highly derived structures for feeding and respiration. Spirobranchus giganteus is similar to most tube-building polychaetes. It has a tubular, segmented body lined with chaeta, small appendages that aid the worm's mobility. Because it does not move outside its tube, this worm does not have any specialized appendages for movement or swimming. The worms' most distinct features are two "crowns" shaped like Christmas trees. These are highly modified prostomial palps, which are specialized mouth appendages. Each spiral is composed of feather-like tentacles called radioles, which are heavily ciliated and cause any prey trapped in them to be transported to the worm's mouth. While they are primarily feeding structures, S. giganteus also uses its radioles for respiration; hence, the structures commonly are called "gills."

Species ID Suggestions



Sign in to suggest organism ID

No Comments

AlbertKang
Spotted by
AlbertKang

Cebu, Philippines

Spotted on Feb 29, 2016
Submitted on Mar 13, 2016

Related Spottings

Christmas tree worms Christmas tree worm Christmas tree worm Orange Christmas Tree Worm

Nearby Spottings

Blue Sapphire Damselfish/Springer's Demoiselle Sardine Sponge/Decorator Crab Marionia Nudibranch
Noah Guardians
Noah Sponsors