Colonies are generally massive but are often encrusting. They are usually small but may be several metres across. The surface is usually lumpy but is sometimes smooth or nodular. Tentacles are commonly extended during the day.
Usually bright yellow to dull grey-brown, sometimes green.
All reef environments.
Source reference: Veron (2000). Taxonomic references: Laborel (1969), Roos (1971), Zlatarski and Estalella (1982). Additional identification guides: Colin (1978), Humann (1993).
displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Porites astreoides.Caribbean.Forming a boulder in shallow water.Charlie Veron.
Porites astreoides.Caribbean.Surface of a colony with tentacles extended.Don Potts.
Porites astreoides.Caribbean.A small encrusting plate.Don Potts.
Porites astreoides.Brazil.Detail of extended tentacles.Charlie Veron.
Porites astreoides.Caribbean.A small encrusting colony.Nancy Sefton.
Porites astreoides.Diagram showing corallite characters. .
Porites astreoides.Caribbean.Showing corallites.
Porites astreoides.Caribbean.Showing whole colony.