Aplustrum amplustre

Aplustrum amplustre, also known as royal paper bubble, ship’s flag shell, swollen bubble, is a species of sea snails, bubble snails, marine opisthobranch gastropod mollusks in the family Aplustridae.^[3]

Aplustrum amplustre
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Family:	Aplustridae
Genus:	Aplustrum
Species:	A. amplustre
Binomial name
Aplustrum amplustre Linnaeus, 1758[1][2]
Synonyms[3]
Amplustrum amplustre (Linnaeus, 1758) Amplustrum fasciatum (Schumacher, 1817) Aplustrum thalassiarchi (A. Adams, 1855) Bulla amplustre Linnaeus, 1758 Bulla pulchella Swainson, 1840 Bulla thalassiarchi A. Adams, 1855 Hydatina amplustre (Linnaeus, 1758)[4][5] Hydatina aplustre [sic](typo)

Description

With length of shell around 15–40 mm, its shell is smaller and more heavily calcified shell than the other members of same species. shell with horizontal lines, with lightbrown stripes, outlined in black, alternating with translucent white and pink stripes patterns; the animal is too large to fit inside its shell. The species is active at night. Predator feeding on polychaete worms. Empty shells are used by hermit crabs.

Distribution

The species is distributed in warm sea^{[6]: 83 [2]} around tropical Indo-Pacific: Australia, New Zealand, South of Kyūshū of Japan,^[6]: 83 South Africa to Hawaii, Madagascar, Philippines.

Habitat

It lives in shallow water (10 metres below sea level) on reefs, with a mix of fine sand, rock and turf algae.^[2]