Author: Margalida Castell Orell


Scientific name: Sabella spallanzanii


Place of photography: Formentor, Mallorca

Sea duster or spirograph


What kind of animal is it? 

It is a sedentary polychaete, that is, a sea worm that is permanently fixed in the substrate.


Where to find it? 

In the Mediterranean and the eastern Atlantic. Margalida took this photo during a dive in Formentor. He found it about 15 m, but it can be found even at 30 m depth.


How is it behaving?

When you feel threatened you can fold the “duster” completely into the tube.


How is it fed? 

It is a filter, that is, it feeds on plankton and suspended debris that transports water.