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Goniastrea thecata

Veron, DeVantier and Turak, 2000

Colonies are massive and more than one metre across. Corallites are irregular in shape, with 1-3 centres. Walls are thick. Septa are evenly spaced and strongly alternate with short septa developed only near the corallite rim. Paliform lobes are poorly developed or absent. Columellae form distinct centres. Fleshy polyp tissue forms a distinctive rim above the theca giving a subplocoid appearance.

Colour: Steel grey.

Habitat: Semi-exposed reef slopes.

Abundance: Rare.

Similar species: Favites paraflexuosa , Oulophyllia bennettae

Taxonomic note: Taxonomic note: The generic designation is arbitrary as paliform lobes, usually characteristic of Goniastrea, are poorly developed. Source reference: Veron (2000). Taxonomic reference: Veron (2002).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Goniastrea thecata.  null.  A massive colony in shallow water.  null.

Goniastrea thecata.null.A massive colony in shallow water.null.

Goniastrea thecata.  Red Sea.  Showing colony surface.

Goniastrea thecata.Red Sea.Showing colony surface.

Goniastrea thecata.  Red Sea.  Showing colony surface.

Goniastrea thecata.Red Sea.Showing colony surface.

Goniastrea thecata.  Red Sea.  Showing corallites.

Goniastrea thecata.Red Sea.Showing corallites.

Goniastrea thecata.  Red Sea.  Showing corallites.

Goniastrea thecata.Red Sea.Showing corallites.