Little Burrowing Urchin

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 15 records
February: 10 records
March: 17 records
April: 15 records
May: 30 records
June: 12 records
July: 38 records
August: 21 records
September: 14 records
October: 18 records
November: 22 records
December: 11 records

Depth and water temperature

Depth

Mostly recorded at 1–252 m · Deepest record: 568.5 m

0–10 m: 41 records
10–20 m: 4 records
20–30 m: 0 records
30–40 m: 3 records
40–50 m: 1 records
50–60 m: 3 records
60–70 m: 1 records
70–80 m: 1 records
80–90 m: 1 records
90–100 m: 0 records
100–110 m: 0 records
110+ m: 10 records

Water temperature

Recorded in surface water of 21–30 °C

20–22 °C: 31 records
22–24 °C: 10 records
24–26 °C: 49 records
26–28 °C: 64 records
28–30 °C: 44 records

Photos

(c) Takaaki Hattori, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Robin White, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Erasmo Macaya Horta, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Takaaki Hattori, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Saryu Mae 前朝琉, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Thomas Irvine, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Little Burrowing Urchin, Round-mouth Bean Urchin

Names in 2 more languages

Japanese: タマゴウニ
Simplified Chinese: 卵圓斜海膽

Other scientific names: Echinoconus ovalis, Echinoneus abruptus, Echinoneus conformis, Echinoneus crassus, Echinoneus cruciatus, Echinoneus elegans, Echinoneus gibbosus, Echinoneus minor, Echinoneus orbicularis, Echinoneus semilunaris, Echinoneus serialis, Echinoneus ventricosus, Galerites echinonea

Similar species

Koehleraster abnormalis

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).
365 open-data records from 1778 to 2018.
Species data updated October 26, 2026.