Armina semperi
- Usual depth5–23 m
- Water temperature20–29 °C
- Best monthsJanuary, March, and May
- How commonRare
About this species
Armina semperi is a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Arminidae.
Text from the Wikipedia article “Armina semperi”, 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: 14 records
- February: 9 records
- March: 14 records
- April: 9 records
- May: 15 records
- June: 3 records
- July: 8 records
- August: 3 records
- September: 3 records
- October: 5 records
- November: 9 records
- December: 7 records
Depth and water temperature
Depth
Mostly recorded at 5–23 m · Deepest record: 28 m
Water temperature
Recorded in surface water of 20–29 °C
Names and classification
Names in 2 more languages
- Japanese
- ホソハスエラウミウシ
- Thai
- ทากเปลือยอินเดีย
Other scientific names: Pleurophyllidia semperi
Similar species
Shield PinstripeArmina rubida

Dark-nosed PinstripeDermatobranchus albus

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).
- 93 open-data records from 2002 to 2026.
- Species data updated October 26, 2026.
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