Characters: Colonies are massive, hemispherical or irregular. Corallites are rounded with thick walls and have six prominent paliform lobes. Polyps are elongate.
Colour: Uniform grey with blue mouths (which may photograph pink).
Similar species: Goniopora tenuidens, which has closely packed uniform polyps and corallites with thin walls. See also G. djiboutiensis, which has larger polyps.
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