About Bulla quoyii J.E.Gray, 1843
Adults of Bulla quoyii have shells that measure between 35 and 55 millimeters long. The shell itself is thin and yellowish-brown, with an elongated to ovate-quadrangular shape, and visible anterior spiral grooves. The front side of the shell is wider than other sections. The white aperture of the shell narrows toward its top. The spire holds six or seven whorls marked with raised striae. The lip of the shell is pale brown, while the columella is white. The periostracum ranges in color from greenish to orange. The body of the living animal, including the foot, head shield, and eye stalks, is a very light beige, with a distinct reddish area around the base of the head shield. This species is distributed across the North Island of New Zealand, southern Australia, northern Tasmania, and the Kermadec Islands. It inhabits intertidal to shallow subtidal areas that have sandy or rocky bottoms.
