Heliocidaris crassispina

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 10 records
February: 12 records
March: 26 records
April: 99 records
May: 89 records
June: 69 records
July: 29 records
August: 21 records
September: 11 records
October: 5 records
November: 7 records
December: 3 records

Depth and water temperature

Depth

Mostly recorded at 3 m · Deepest record: 3 m

0–10 m: 1 records

Water temperature

Recorded in surface water of 18–25 °C

18–20 °C: 122 records
20–22 °C: 1 records
22–24 °C: 191 records
24–26 °C: 21 records

Photos

(c) Se Lena, some rights reserved (CC BY) · CC BY · iNaturalist
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Saryu Mae 前朝琉, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Liem Malarney, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Kim, Hyun-tae, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

Names in 1 more languages

Japanese: ムラサキウニ

Other scientific names: Anthocidaris crassispina, Anthocidaris purpurea, Authoeidaris Erassispina, Strongylocentrotus globulosus, Strongylocentrotus purpureus, Toxocidaris crassispina, Toxocidaris globulosa, Toxocidaris purpurea

Similar species

Western Pacific purple sea urchin
Heliocidaris erythrogramma
Heliocidaris tuberculata
Heliocidaris australiae
Heliocidaris bajulus
Rock-boring urchin
Echinometra mathaei
Oblong Sea Urchin
Echinometra oblonga

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).
491 open-data records from 1894 to 2021.
Species data updated November 3, 2026.