Blister coral

About this species

Horastrea is a monotypic genus of stony coral in the family Coscinaraeidae. It is represented by the single species Horastrea indica, the blister coral. It is native to the southwestern Indian Ocean where it is found in shallow water sandy reefs. It was first described by M Pichon in 1971.

Text from the Wikipedia article “Horastrea”, 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: 2 records
February: 0 records
March: 3 records
April: 1 records
May: 4 records
June: 0 records
July: 0 records
August: 0 records
September: 0 records
October: 1 records
November: 1 records
December: 4 records

Depth and water temperature

Water temperature

Recorded in surface water of -0–28 °C

-2–0 °C: 1 records
0–2 °C: 0 records
2–4 °C: 0 records
4–6 °C: 0 records
6–8 °C: 0 records
8–10 °C: 0 records
10–12 °C: 0 records
12–14 °C: 0 records
14–16 °C: 0 records
16–18 °C: 0 records
18–20 °C: 0 records
20–22 °C: 0 records
22–24 °C: 0 records
24–26 °C: 0 records
26–28 °C: 5 records

Photos

(c) Ewout Knoester, some rights reserved (CC BY-SA), uploaded by Ewout Knoester · CC BY-SA · iNaturalist
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist

Names and classification

English: Blister coral, blister coral, Horastrea coral

Similar species

crisp pillow coral
Anomastraea irregularis
Wrinkle coral
Coscinaraea crassa
Wrinkle coral
Coscinaraea marshae
Wrinkle coral
Coscinaraea monile
Wrinkle coral
Coscinaraea hahazimaensis
Wrinkle coral
Coscinaraea mcneilli

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).
38 open-data records from 1971 to 2005.
Species data updated November 3, 2026.