DiscoverSpeciesOther invertebrates
Meridiastra occidens
- Usual depth1–5 m
- Water temperature16–23 °C
- Best monthsJanuary, August, and November
- How commonRare
Photo credit: (c) Josh Nitschke, 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: 16 records
- February: 3 records
- March: 8 records
- April: 4 records
- May: 8 records
- June: 3 records
- July: 2 records
- August: 16 records
- September: 4 records
- October: 5 records
- November: 10 records
- December: 5 records
Depth and water temperature
Depth
Mostly recorded at 1–5 m · Deepest record: 5.4 m
Water temperature
Recorded in surface water of 16–23 °C
Photos
(c) Josh Nitschke, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Em Lamond, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
Other scientific names: Patiriella occidens
Similar species
Carpet Sea StarMeridiastra calcar
Gunn's six-armed starMeridiastra gunnii
Eastern six-armed starMeridiastra oriens
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).
- 148 open-data records from 1959 to 2005.
- Species data updated November 4, 2026.
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