DiscoverSpeciesOther invertebrates
Magnificent Fire Urchin
Asthenosoma ijimai
- Usual depth26–141 m
- Water temperature25–29 °C
- Best monthsFebruary, April, and July
- How commonRare
Photo credit: (c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
About this species
Asthenosoma ijimai is a species of sea urchin of the family Echinothuriidae. Their armour is covered with spines. It is placed in the genus Asthenosoma and lives in the sea. Asthenosoma ijimai was first scientifically described in 1897 by Yoshiwara.
Text from the Wikipedia article “Asthenosoma ijimai”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 4 records
- February: 10 records
- March: 6 records
- April: 8 records
- May: 7 records
- June: 5 records
- July: 8 records
- August: 4 records
- September: 8 records
- October: 3 records
- November: 4 records
- December: 5 records
Depth and water temperature
Depth
Mostly recorded at 26–141 m · Deepest record: 141 m
Water temperature
Recorded in surface water of 25–29 °C
Names and classification
- English
- Magnificent Fire Urchin
Names in 1 more languages
- Japanese
- イイジマフクロウニ
Similar species
Fire UrchinAsthenosoma varium
Tam o Shanter urchinAraeosoma thetidis
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.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 17 open-data records from 1897 to 2014.
- Species data updated October 26, 2026.
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