Acanthastrea regularis
Veron, 2000
Description: Colonies are massive and subplocoid. Septa are uniformly spaced with 8-10 evenly spaced, rounded teeth. Teeth on adjacent septa are often aligned, forming concentric circles. Some septa are more prominent than others. Columellae are weakly developed. Colonies do not have thick tissue over the skeleton.
Color: Variable brown and yellow-brown, usually with contrasting corallite walls and centres.
Habitat: Shallow reef environments.
Abundance: Uncommon.
Similar Species: May resemble the faviids Montastrea and Favia species more than other Acanthastrea underwater. See also A. faviaformis.
Taxonomic note: See ‘New species described in Corals of the World’ (Veron, in preparation) for further information. Source reference: Veron (2000).
Corallite detail of a colony on an upper reef slope. Papua New Guinea Photograph: Charlie Veron
Corallite detail. Guam Photograph: Gustav Paulay
Corallite detail. Great Barrier Reef, Australia Photograph: Charlie Veron
Skeletal detail. Showing corallites.