Its favoured habitats include inside crevices and under boulders, or cemented to rock surfaces, corals or man-made structures such as harbour pilings.
The oldest is from the 8th century and may have been built on wooden piles driven into the ground.
Boats are moored on buoys, on fixed or floating walkways tied to an anchoring piling by a roller or ring mechanism (floating docks, pontoons).
The specific name palicolarum is according to the Latin words "pile" that means "pile" and Latin word "colus".
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British engineers constructed the present lighthouse, reinforcing the building by placing it on a foundation of 49 greenheart piles, making it durable nearly 200 years later.