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Christmas Tree Worm

Spirobranchus giganteus

(Pallas, 1766)

Christmas Tree Worm
St. Eustatius, Grand Canyon, 11-06-2015 (source: Marion Haarsma)

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Summary

Bristle worm. Saltwater. Tube Worms. The most well known of the feather worms has two spiraled crowns of radioles. The hard, calcareous tube is hidden in the coral. When disturbed, the animal retracts immediately into its tube, closing it with a two-horned, circular lid, called the operculum.

To be confused with

- Red-Spotted Horseshoe Worm Protula sp.

Characteristics

Size: Whole animal up to 10 cm, crowns up to 4 cm.
Color: The crowns is highly variable, although brown, dark brown, orange, white, and maroon or combinations of these are most common. 
Shape: Two spiraled crowns of radioles. The hard, calcareous tube is hidden in the coral.


Habitat environment and ecology

Inhabits reefs. This feather worm occurs all over the reefs. Tubes usually encased in living coral.

Distribution range

BES-eilanden: St. Eustatius.

Author

[Marion Haarsma, march 2016]

Literature

- Humann, P., & DeLoach, N. (2002). Reef Creature Identification: Florida, Caribbean, Bahamas (p. 420). Jacksonville (FL): New World Publications.

Categorieën:

Soorten, Borstelwormen

Commentaar

Christmas Tree Worm Christmas Tree Worm Christmas Tree Worm

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