- Kingdom: Animalia
- Phylum: Bryozoa
- Class: Gymnolaemata
- Order: Cheilostomatida
- Suborder: Neocheilostomatina
- Infraorder: Flustrina
- Superfamily: Flustroidea
- Family: Flustridae
- Scientific name: Securiflustra securifrons
- Norwegian: -
Characteristics:
The colonies of S. securifrons do not exceed a height of 15 cm. The branches have not the same tendency to widen towards the tip, like the similar F. foliacea. The zooid boxes are rectangular and approximately 4 times as long as they are wide.
Habitat:
It thrives on rocky substrate from the subtidal zone and down as deep as 500 meters.
Distribution:
It is widespread in the North Atlantic Ocean, both on the American and the European side.