Flag penshell
Atrina vexillum
- Usual depth15–37 m
- Water temperature23–30 °C
- Best monthsFebruary, July, and September
- How commonRare
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 9 records
- February: 12 records
- March: 6 records
- April: 5 records
- May: 8 records
- June: 12 records
- July: 18 records
- August: 12 records
- September: 14 records
- October: 7 records
- November: 7 records
- December: 7 records
Depth and water temperature
Depth
Mostly recorded at 15–37 m · Deepest record: 37 m
Water temperature
Recorded in surface water of 23–30 °C
Names and classification
- English
- Flag penshell, flag penshell
Names in 2 more languages
- German
- Flaggenmuschel, Flaggen-Steckmuschel
- Japanese
- クロタイラギ
Other scientific names: Atrina (Atrina) vexillum, Pinna gubernaculum, Pinna nigra, Pinna nigrina, Pinna vexillum
Similar species
Comb penshellAtrina pectinata
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.
- Conservation status as published by GBIF (IUCN Red List).
- 153 open-data records from 1767 to 2014.
- Species data updated October 26, 2026.
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