Echinostrephus molaris

Other invertebrates
IUCN: Not evaluated

Usual depth1–14 m
Water temperature22–29 °C
Best monthsApril and May
How commonRare

All species

Photo credit: no rights reserved, uploaded by Jean-Paul Boerekamps · CC0 1.0 · iNaturalist

About this species

Echinostrephus molaris is a species of echinoderms belonging to the family Echinometridae.

Text from the Wikipedia article “Echinostrephus molaris”, 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: 8 records
February: 11 records
March: 17 records
April: 49 records
May: 42 records
June: 10 records
July: 12 records
August: 14 records
September: 25 records
October: 16 records
November: 12 records
December: 26 records

Depth and water temperature

Depth

Mostly recorded at 1–14 m · Deepest record: 24 m

0–10 m: 40 records
10–20 m: 22 records
20–30 m: 1 records

Water temperature

Recorded in surface water of 22–29 °C

20–22 °C: 2 records
22–24 °C: 78 records
24–26 °C: 16 records
26–28 °C: 15 records
28–30 °C: 55 records

Photos

(c) Ewout Knoester, some rights reserved (CC BY-SA), uploaded by Ewout Knoester · CC BY-SA · iNaturalist
(c) Pauline Walsh Jacobson, some rights reserved (CC BY) · CC BY · iNaturalist
(c) harum.koh, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist
(c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY) · CC BY · iNaturalist
(c) John Hepburn, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

Names in 1 more languages

Japanese: ミナミタワシウニ

Other scientific names: Echinostrephus molare, Echinostrephus pentagonus, Echinus laganoides, Echinus lezaroides, Echinus mola, Echinus molaris, Psammechinus laganoides

Similar species

Echinostrephus aciculatus
Rock-boring urchin
Echinometra mathaei
Oblong Sea Urchin
Echinometra oblonga
Slate pencil urchin
Heterocentrotus mamillatus

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).
451 open-data records from 1825 to 2023.
Species data updated October 26, 2026.

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