
Cucullaearca foliata
- Usual depth1–60 m
- Water temperature16–30 °C
- Best monthsJune, September, and October
- How commonRare
Photo credit: (c) Wynand Uys, some rights reserved (CC BY) · CC BY · iNaturalist
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 11 records
- February: 20 records
- March: 15 records
- April: 12 records
- May: 14 records
- June: 33 records
- July: 18 records
- August: 8 records
- September: 24 records
- October: 26 records
- November: 12 records
- December: 19 records
Depth and water temperature
Depth
Mostly recorded at 1–60 m · Deepest record: 70 m
Water temperature
Recorded in surface water of 16–30 °C
Photos

(c) Saryu Mae 前 朝琉, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Takaaki Hattori, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Takaaki Hattori, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
Other scientific names: Arca corallicola, Arca foliata, Arca nivea, Arca ovata, Arca sinuata, Arca velata, Barbatia (Abarbatia) hendersoni, Barbatia (Barbatia) foliata, Barbatia (Cucullaearca) foliata, Barbatia cancellata, Barbatia djiboutiensis, Barbatia foliata, Barbatia hendersoni, Barbatia nivea, Barbatia ovata, Barbatia velata, Byssoarca velata
Similar species
Divaricated ArkAcar plicata
Antique arkAnadara antiquata
Indo-Pacific ArkArca navicularis
Burnt-almond arkBarbatia amygdalumtostum
- Truncated Ark
Lamarcka ventricosa

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.
- 258 open-data records from 1775 to 2012.
- Species data updated October 26, 2026.
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