half-round cardita
Beguina semiorbiculata
- Usual depth1.5 m
- Water temperature25–30 °C
- Best monthsJanuary, November, and December
- How commonRare
Photo credit: (c) Nicola Crockford, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Beguina semiorbiculata, commonly known as the half-round cardita, is a species of bivalve mollusk in the family Carditidae, inhabiting the Indo/West Pacific region. It may be locally common in certain locales.
Text from the Wikipedia article “Beguina semiorbiculata”, 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: 7 records
- February: 4 records
- March: 5 records
- April: 1 records
- May: 4 records
- June: 5 records
- July: 4 records
- August: 5 records
- September: 3 records
- October: 0 records
- November: 7 records
- December: 6 records
Depth and water temperature
Depth
Mostly recorded at 1.5 m · Deepest record: 1.5 m
Water temperature
Recorded in surface water of 25–30 °C
Photos
(c) Nicola Crockford, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- half-round cardita
Other scientific names: Beguina nephritica, Cardita irregularis, Chama phrenitica, Chama reniformis, Chama semiorbiculata
Similar species
Large-ribbed carditaCardita crassicosta
Rectangular false cockleCardita variegata
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).
- 80 open-data records from 1758 to 2012.
- Species data updated October 26, 2026.
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