Bullina lineata, common name the red-lined bubble snail, is a species of sea snail, a marine gastropod mollusc in the family Aplustridae.

[1] This snail has a milky-white mantle with iridescent blue edges.

There are small black eyes on the head between the head shield processes.

The shell has a white background with horizontally spiraling red brown bands which are crossed by vertical bands in the same color.

This species occurs in the sublittoral zone of the Indo-Pacific from Japan to Australia and New Zealand.