| Red-lined bubble snail | |
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Family: | Aplustridae |
| Genus: | Bullina |
| Species: | B. lineata |
| Binomial name | |
| Bullina lineata Gray, 1825 | |
Bullina lineata, common name the red-lined bubble snail, is a species of sea snail, a marine gastropod mollusc in the family Aplustridae.
This snail has a milky-white mantle with iridescent blue edges. Small, black eyes are 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. The length is 15 to 25 mm.
This species occurs in the sublittoral zone of the Indo-Pacific from Japan to Australia and New Zealand, primarily on coral reefs and rocky shores.
The red-lined bubble snail diet consists of polychaete worms found in sand patches on rock platforms.
This species is found sporadically, so has not been evaluated by the International Union for Conservation of Nature.