Characters: 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. Similar species: Acanthastrea echinata, which has similar but smaller corallites which are less widely spaced, without an Echinophyllia-like appearance towards the colony periphery. Habitat: Protected reef environments. Abundance: Usually uncommon.