Chocolate-banded bubble snail
Hydatina amplustre
- Usual depth1–6 m
- Water temperature20–30 °C
- Best monthsJanuary, April, and October
- How commonOccasional
Photo credit: (c) Harry Rose, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Hydatina 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.
Text from the Wikipedia article “Hydatina amplustre”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 79 records
- February: 54 records
- March: 55 records
- April: 72 records
- May: 62 records
- June: 59 records
- July: 40 records
- August: 51 records
- September: 41 records
- October: 66 records
- November: 66 records
- December: 54 records
Depth and water temperature
Depth
Mostly recorded at 1–6 m · Deepest record: 10 m
Water temperature
Recorded in surface water of 20–30 °C
Photos
(c) Ken-ichi Ueda, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Cricket Raspet, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Cricket Raspet, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Brian du Preez, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) David Rankin, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist
Names and classification
- English
- Chocolate-banded bubble snail, Pink Bubble Snail, Swollen Bubble Shell
Names in 3 more languages
- French
- Bulle de papier rayée
- Japanese
- ベニヤカタ, ベニヤカタガイ
- Simplified Chinese
- 玫瑰泡螺
Other scientific names: Amplustrum amplustre, Amplustrum fasciatum, Aplustrum amplustre, Aplustrum fasciatum, Aplustrum thalassiarchi, Bulla (Aplustrum) thalassiarchi, Bulla amplustre, Bulla pulchella, Hydatina aplustre
Similar species
Brown-line paperbubbleHydatina physis
White-banded bubbleHydatina albocincta
Toffee-banded bubble shellHydatina zonata
Lined bubble snailBullina lineata
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 148 open-data records from 1907 to 2026.
- Species data updated November 3, 2026.
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