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Christmas Tree Worms- Spirobranchus giganteus

Christmas Tree Worms at Kadena Steps, Okinawa

Christmas Tree Worms at Kadena Steps, Okinawa

Spirobranchus giganteus, commonly known as Christmas tree worms, are small, tube-building polychaete worms belonging to the family Serpulidae (Wikipedia). Each worm has two Christmas tree like structures that are used for both feeding and respiration. If you move too close to the worm they rapidly retract back into the coral. (In the movie Avatar some of the plants on the alien world behaved in a similar fashion.)

Christmas Tree Worms at Kadena Steps, Okinawa

Christmas Tree Worms at Kadena Steps, Okinawa

These were shot with the K5 and the fisheye lens. The lens isn’t designed for macro work, but you can still get some interesting wide-angle close-up images.

Christmas Tree Worms at Kadena Steps, Okinawa

Christmas Tree Worms at Kadena Steps, Okinawa

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Travel writer and photographer living in Okinawa, Japan

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