Green solitary coral

Homophyllia australis

Corals and anemones
IUCN: Vulnerable

Usual depth2–10 m
Water temperature15–25 °C
Best monthsJanuary, February, and March
How commonRare

All species

Photo credit: (c) Susan Prior, some rights reserved (CC BY), uploaded by Susan Prior · CC BY · iNaturalist

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 34 records
February: 28 records
March: 23 records
April: 22 records
May: 12 records
June: 13 records
July: 17 records
August: 10 records
September: 13 records
October: 21 records
November: 19 records
December: 22 records

Depth and water temperature

Depth

Mostly recorded at 2–10 m · Deepest record: 16 m

0–10 m: 27 records
10–20 m: 7 records

Water temperature

Recorded in surface water of 15–25 °C

14–16 °C: 8 records
16–18 °C: 7 records
18–20 °C: 8 records
20–22 °C: 11 records
22–24 °C: 1 records
24–26 °C: 18 records

Photos

(c) ttsquid, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Susan Prior, some rights reserved (CC BY) · CC BY · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist
(c) Susan Prior, some rights reserved (CC BY) · CC BY · iNaturalist
(c) ttsquid, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Debra Baker, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Green solitary coral

Other scientific names: Caryophyllia australis, Culicia magna, Cylicia magna, Isophyllia australis, Parascolymia australis, Scolymia australis

Similar species

Bowerbank's Cup Coral
Homophyllia bowerbanki
Starry cup coral
Acanthastrea echinata
lobed cactus coral
Acanthastrea pachysepta
Flat lettuce coral
Echinophyllia aspera
Brain coral
Lobophyllia corymbosa
Lobed cactus coral
Lobophyllia hemprichii

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).
149 open-data records from 1957 to 2006.
Species data updated November 3, 2026.

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