DiscoverSpeciesOther invertebrates
Cushion sea star
Pentaceraster alveolatus
- Usual depth2–54 m
- Water temperature25–29 °C
- Best monthsApril, May, and June
- How commonRare
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 1 records
- February: 1 records
- March: 0 records
- April: 5 records
- May: 5 records
- June: 5 records
- July: 1 records
- August: 2 records
- September: 0 records
- October: 0 records
- November: 2 records
- December: 1 records
Depth and water temperature
Depth
Mostly recorded at 2–54 m · Deepest record: 70 m
Water temperature
Recorded in surface water of 25–29 °C
Names and classification
- English
- Cushion sea star, Honeycomb Cushion Star, Honeycomb Sea Star
Names in 2 more languages
- German
- Walzennoppenseestern
- Japanese
- コブヒトデモドキ
Other scientific names: Oreaster alveolatus, Oreaster troscheli, Pentaceros alveolatus, Pentaceros bedoti, Pentaceros troscheli
Similar species
Grainy Cushion StarChoriaster granulatus
Cushion starCulcita novaeguineae
- Mosaic Cushion Star
Halityle regularis
- Blunt Arm Sea Star
Pentaster obtusatus
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).
- 33 open-data records from 1908 to 2016.
Log what you see on your next dive
The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.