Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 0 records
- February: 1 records
- March: 0 records
- April: 0 records
- May: 1 records
- June: 18 records
- July: 1 records
- August: 1 records
- September: 0 records
- October: 1 records
- November: 0 records
- December: 0 records
Depth and water temperature
Depth
Mostly recorded at 49–62 m · Deepest record: 64 m
Water temperature
Recorded in surface water of 23–29 °C
Names and classification
Other scientific names: Malleus figuratus, Malleus normalis, Malleus tigrinus, Ostrea anatina, Ostrea figurata, Ostrea ligo
Similar species
Southern hammer oysterMalleus meridianus
American hammer oysterMalleus albus
Common hammer-oysterMalleus malleus
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).
- 34 open-data records from 1791 to 2009.
- Species data updated November 4, 2026.
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