Serpula vermicularis reaches 7 cm. Small serpulid polychaete worm (Serpulidae) cosmopolitan temperate with body hidden in sinuous white calcareous tube with rounded section reaching several centimeters, fixed on rocks, shells and hard submerged objects. Projects a radiole fan crown red to orange to yellow, characteristic funnel-shaped operculum. Lives from 0 to 250 m on hard substrates from Mediterranean to North Atlantic. Can form serpulid reefs (biogenic reefs). Classic Mediterranean macro dive photo subject.
Frequently asked questions
How big is the Calcareous tubeworm?
Calcareous tubeworm (Serpula vermicularis) reaches 2–7 cm in length.
At what depth can you find the Calcareous tubeworm?
Calcareous tubeworm is found between 0–250 m deep.
Is the Calcareous tubeworm dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Calcareous tubeworm?