Heart cockle
Corculum cardissa
- Usual depth2–520 m
- Water temperature18–30 °C
- Best monthsJune, July, and August
- How commonOccasional
Photo credit: (c) Takaaki Hattori, some rights reserved (CC BY), uploaded by Takaaki Hattori · CC BY · iNaturalist
About this species
Corculum cardissa, the heart cockle, is a species of marine bivalve mollusc in the family Cardiidae. It is found in the Indo-Pacific region. It has a symbiotic relationship with dinoflagellates (zooxanthellae), which live within its tissues.
Text from the Wikipedia article “Corculum cardissa”, 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: 4 records
- February: 5 records
- March: 4 records
- April: 4 records
- May: 4 records
- June: 7 records
- July: 7 records
- August: 7 records
- September: 0 records
- October: 7 records
- November: 3 records
- December: 5 records
Depth and water temperature
Depth
Mostly recorded at 2–520 m · Deepest record: 520 m
Water temperature
Recorded in surface water of 18–30 °C
Photos
(c) Rikaris, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Takaaki Hattori, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Heart cockle, True heart cockle, heart cockle, true heart cockle
Names in 4 more languages
- German
- Echte Herzmuschel, Flache Herzmuschel, Herzmuschel
- Japanese
- リュウキュウアオイ
- Thai
- หอยหัวใจ
- Simplified Chinese
- 雞心蛤
Other scientific names: Cardissa alba, Cardissa spinosa, Cardium (Corculum) humanum, Cardium cardissa, Cardium humanum, Cardium impressum, Cardium inversum, Cardium junoniae, Cardium monstrosum, Cardium protrusum, Cardium replicatum, Cardium roseum, Cardium spinosa, Corculum aselae, Corculum dolorosum, Corculum humanum, Corculum impressum, Corculum inflatum, Corculum kirai, Corculum levigatum, Corculum lorenzi, Corculum monstrosum, Corculum obesum, Corculum roseum
Similar species
- Pacific strawberry cockle
Fragum fragum
- Strawberry cockle
Fragum unedo
- Bear paw clam
Hippopus hippopus
- Double-Rayed Cockle
Acrosterigma biradiatum
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).
- 780 open-data records from 1758 to 2012.
- Species data updated October 26, 2026.
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