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Acropora efflorescens

(Dana, 1846)

Colonies are extensive flat plates which are solid except towards the perimeter which usually consists of highly fused irregular branches. They may exceed 2 metres across. Axial and radial corallites are not differentiated; all have sharp rims. Corallites at plate margins are mostly horizontal, those on upper plate surfaces are short, compact and upward facing. There is little or no development of corallites on the undersurfaces of plates.

Colour: Uniform dark grey.

Habitat: Steep reef slopes.

Abundance: Rare.

Similar species: Acropora branchi , Acropora clathrata

Taxonomic note: Source reference: Veron (2000). Taxonomic references: Dana’s original description/specimens, Pillai and Scheer (1976).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Acropora efflorescens.  null.  Thin flat plates.  null.

Acropora efflorescens.null.Thin flat plates.null.

Acropora efflorescens.  null.  Flat plates on horizontal surfaces.  null.

Acropora efflorescens.null.Flat plates on horizontal surfaces.null.

Acropora efflorescens.  null.  Flat plates on horizontal surfaces.  null.

Acropora efflorescens.null.Flat plates on horizontal surfaces.null.

Acropora efflorescens.  null.  Corallite details.  null.

Acropora efflorescens.null.Corallite details.null.

Acropora efflorescens.  Indonesia.  Showing corallites.

Acropora efflorescens.Indonesia.Showing corallites.