Colonial Anemone

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 26 records
February: 16 records
March: 12 records
April: 15 records
May: 17 records
June: 21 records
July: 13 records
August: 15 records
September: 20 records
October: 21 records
November: 17 records
December: 23 records

Depth and water temperature

Depth

Mostly recorded at 0–175 m · Deepest record: 175 m

0–10 m: 3 records
10–20 m: 2 records
20–30 m: 0 records
30–40 m: 0 records
40–50 m: 0 records
50–60 m: 0 records
60–70 m: 0 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 0 records
100–110 m: 0 records
110+ m: 1 records

Water temperature

Recorded in surface water of 21–29 °C

20–22 °C: 1 records
22–24 °C: 6 records
24–26 °C: 3 records
26–28 °C: 8 records
28–30 °C: 14 records

Photos

(c) Lennart Hudel, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Franz Anthony, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Nicola Crockford, some rights reserved (CC BY) · CC BY · iNaturalist
(c) luluchouette, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Nicola Crockford, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Niki Hubbard, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Susan Prior, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Colonial Anemone

Other scientific names: Actiniogeton rapanuiensis, Actiniogeton sesere, Actiniogeton sultana, Actinioides rapanuiensis, Actinioides sesere, Actinioides sultana, Actinogeton rapanuiensis, Actinogeton sultana, Actinoides sesere, Actinoides sultana, Anthopleura excavata, Anthopleura pallida, Gyractis excavata, Gyractis pallida

Similar species

Gyractis spenceri
Beadlet anemone
Actinia equina
Opelet anemone
Anemonia viridis
Aggregating anemone
Anthopleura elegantissima
Red Waratah Anemone
Actinia tenebrosa
Small Brown Sea Anemone
Anthopleura hermaphroditica

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).
79 open-data records from 1843 to 2006.
Species data updated November 3, 2026.