DiscoverSpeciesOther invertebrates
Beaded Starfish
Pentaceraster mammillatus
- Usual depth3–50 m
- Water temperature26–28 °C
- Best monthsJanuary, October, and December
- How commonRare
Photo credit: (c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 19 records
- February: 10 records
- March: 3 records
- April: 2 records
- May: 3 records
- June: 2 records
- July: 5 records
- August: 10 records
- September: 10 records
- October: 14 records
- November: 4 records
- December: 13 records
Depth and water temperature
Depth
Mostly recorded at 3–50 m · Deepest record: 50 m
Water temperature
Recorded in surface water of 26–28 °C
Photos
(c) Mahomed Desai, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Emanuele Santarelli, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Catarina Lobato, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
Names and classification
- English
- Beaded Starfish, Multicolored Knobbed Sea Star, Multicolored Knobbed Starfish
Names in 1 more languages
- Thai
- ดาวแดง
Other scientific names: Asterias mammillata, Oreaster mammillatus, Oreaster verrucosus, Pentaceros mammillatus, Pentaceros verrucosus
Similar species
Panamic Cushion StarPentaceraster cumingi
- Neighbouring Five-horned Star
Pentaceraster affinis
- Cushion sea star
Pentaceraster alveolatus
Grainy Cushion StarChoriaster granulatus
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).
- 60 open-data records from 1826 to 2023.
- Species data updated November 5, 2026.
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