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Acanthastrea rotundoflora

Chevalier, 1975

Colonies are encrusting, sometimes submassive. Small colonies have a conspicuous central corallite. Corallites are plocoid, becoming widely spaced and Echinophyllia-like (Pectiniidae) at colony edges. Septa have long pointed teeth. Colonies have fleshy tissue over the skeleton.

Colour: Dark brown, rust-red or green.

Habitat: Protected reef environments.

Abundance: Usually uncommon.

Similar species: Acanthastrea echinata

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Chevalier (1975). Additional identification guide: Nishihira and Veron (1995).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Acanthastrea rotundoflora.  Philippines.  A large encrusting colony.  Charlie Veron.

Acanthastrea rotundoflora.Philippines.A large encrusting colony.Charlie Veron.

Acanthastrea rotundoflora.  Philippines.  Colony structure.  Charlie Veron.

Acanthastrea rotundoflora.Philippines.Colony structure.Charlie Veron.

Acanthastrea rotundoflora.  Guam.  Colony structure.  Charlie Veron.

Acanthastrea rotundoflora.Guam.Colony structure.Charlie Veron.

Acanthastrea rotundoflora.  Philippines.  Thick tissue covering the coenosteum and corallite wall.  Charlie Veron.

Acanthastrea rotundoflora.Philippines.Thick tissue covering the coenosteum and corallite wall.Charlie Veron.

Acanthastrea rotundoflora.  Ryukyu Islands, Japan.  The Echinophyllia-like edge of the colony.  Charlie Veron.

Acanthastrea rotundoflora.Ryukyu Islands, Japan.The Echinophyllia-like edge of the colony.Charlie Veron.

Acanthastrea rotundoflora.  Vietnam.  Showing the central corallite, widely spaced peripheral corallites and toothed costae.  Charlie Veron.

Acanthastrea rotundoflora.Vietnam.Showing the central corallite, widely spaced peripheral corallites and toothed costae.Charlie Veron.

Acanthastrea rotundoflora.  Great Barrier Reef, Australia.  Showing corallites.

Acanthastrea rotundoflora.Great Barrier Reef, Australia.Showing corallites.

Acanthastrea rotundoflora.  Ryukyu Islands, Japan.  Showing corallites.

Acanthastrea rotundoflora.Ryukyu Islands, Japan.Showing corallites.

Acanthastrea rotundoflora.  Papua New Guinea.  Showing skeletal detail.

Acanthastrea rotundoflora.Papua New Guinea.Showing skeletal detail.