- Kingdom: Animalia
- Phylum: Annelida
- Class: Polychaeta
- Subclass: Sedentaria
- Order: Sabellida
- Family: Serpulidae
- Scientific name: Filograna implexa
- Norwegian: filigranmark
Characteristics:
The coral worm itself is hard to spot, as its length rarely exceeds 4 mm. The bushy, white colony, however, is easily identified. The bush is a popular hideout for other small animals searching for food brought by the current. The worm has eight tentacles and approximately 30 segments.
Habitat:
It thrives on rocky substrate, often on current exposed locations. It is most frequent deeper than 20 meters.
Distribution:
This worm is a real cosmopolitan, and is well known in most oceans. In Norway it is registered along the entire coast as far north as the North Cape, the northernmost point of Norway.