About Bulla gouldiana Pilsbry, 1895
Bulla gouldiana has a semi-transparent, paper-thin, globose shell that is brown or pale violet. Its head, mantle and foot are yellowish-brown with mottled whitish dots. The aperture is wide at the anterior end and narrow at the posterior end. This species produces an egg mass that forms a yellow to orange tangled string of jelly, which contains oval capsules. Each capsule holds up to 25 eggs, which develop into veliger larvae. Bulla gouldiana occurs in shallow water within estuaries and sheltered bays, at depths down to 10 m (33 ft). It is found along the western coast of America, ranging from California to Ecuador.