Bullina lineata

Images taken at Chowder Bay and Bare Island, NSW, Australia

Bullina lineata has a thin operculum (trap door) and is able to retract completely back into its shell. The shell itself is white in colour with 2 spiral red lines that run around the shell and multiple wavy axial lines of the same colour that run down the shell.

The headshield is translucent with a blue luminescence-like margining.

They feed on cirratulid polychaetes (worms).