Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 1 records
- February: 10 records
- March: 0 records
- April: 2 records
- May: 2 records
- June: 2 records
- July: 5 records
- August: 3 records
- September: 1 records
- October: 2 records
- November: 2 records
- December: 1 records
Depth and water temperature
Water temperature
Recorded in surface water of 20–29 °C
Names and classification
Other scientific names: Barbatia (Cucullaearca) grayana, Barbatia grayana
Similar species

Divaricated ArkAcar plicata
Antique arkAnadara antiquata
Kagoshima Blood CockleAnadara kagoshimensis
Sydney CockleAnadara trapezia
Indo-Pacific ArkArca navicularis
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.
- 56 open-data records from 1895 to 2013.
- Species data updated November 1, 2026.
Log what you see on your next dive
The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.