- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Subclass: Caenogastropoda
- Order: unassigned
- Superfamily: Cerithioidea
- Family: Turritellidae
- Scientific name: Turritella communis
- Norwegian: tårnsnegl
The tower shell is easily recognized long and slender conical shape and the 16-20 windings. Three distinct ridges can be seen on each winding. The shell can reach a length of 6 cm. The color is grey or brown.
Can be found on any depth, from the subtidal zone and down to 220 meters. It thrives on soft substrate.
It is widespread along the east coasts of the Atlantic Ocean, from North Africa and the Mediterranean to Lofoten, Norway.