It is found in shallow water in the Mediterranean Sea, the western Atlantic Ocean and the tropical and subtropical Indo-Pacific region.

It has a translucent whitish or golden-brown mantle through which the thin, flattened internal shell,[3] and the brownish visceral mass can be seen.

The rhinophores are tubular and divided along their length; they and the buccal membrane extend far beyond the foot and are the same colour as the rest of the animal.

The mantle surface is finely reticulated with white lines surrounding low raised areas.

Scattered white spots on the surface of the mantle are glands that secrete acidic mucus to deter predators.