Kingdom: Animalia
Phylum: Cnidaria
Class: Anthozoa
Order: Scleractinia
Family: Caryophylliidae (Hexacoral or stony polyped coral)

Genus/species: Plerogyra sinuosa

GENERAL CHARACTERISTICS: Colonial corals often covered
with clusters of bubble-like structures (thus the common name), each over 1 cm in length. Tentacles extend at night to capture small prey. Colored gray, bluish, greenish, brownish or rich cream. The skeleton is a mineral aragonite.

bubble coral23923123353_354a13e35d_o

DISTRIBUTION/HABITAT: Indo-Pacific and Australia region.Found in turbid bays and lagoons, on reefs in deep water or under overhangs.

DIET IN THE WILD: Light-capturing bubble-like vesicles extend during the day to support the photosynthesis of the algal symbionts. Tentacles extend at night to capture small prey.

Bubble Coral4561883874_27975403aa_o

CONSERVATION: IUCN Red List Near threatened (NT)

REMARKS: This is a stony coral, despite the soft appearance the “bubbles” give during the day.


California Academy of Sciences Steinhart Aquarium Color on the Reef AQA17  Charles Delbeek

Aquarium Corals E H Borneman TFH Publications 2001 Page 311


IUCN Red List

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Ron’s Flickr