Characters: Colonies are flat plates which may be encrusting or tiered. Corallites are closely compacted, large, outwardly inclined, with a tendency to form concentric rows. Septo-costae strongly alternate.
Colour: Brown, sometimes with pale margins and/or pale corallite centres.
Similar Species: Leptoseris mycetoseroides, which also forms flat plates and has corallites aligned parallel to plate margins. See also plate-like Agaricia.
Habitat: Shallow or deep reef environments.
Abundance: Sometimes common.