turbinellidae-shells

Turbinellidae "Swainson, 1835"
Family of gastropod molluscs of the subclass Caenogastropoda which has a thick and heavy shell, with a biconical to fusiform shape, with a predominantly spiral and often nodular or spiny external sculpture on the shoulder.
This family is home to some of the largest living gastropod species, such as Syrinx aruanus, which can have a shell up to 80 cm long.
They are molluscs common in tropical and subtropical waters, from littoral to shallow, on coral reefs or sandy bottoms. They are carnivorous animals, predators of clams, sipunculid worms or polychaetes.
The shell of these molluscs is often used as an ornament or as a collector's item.