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Gardineroseris planulata

(Dana, 1846)

Colonies are massive to encrusting, sometimes with laminar margins. Corallites have poorly defined walls but are separated by acute ridges so that each corallite or group of corallites is at the bottom of a neatly rounded excavation. Columellae are present and septo-costae are fine and even. Tentacles are rarely extended and only at night.

Colour: Pale or dark brown, sometimes yellow or green.

Habitat: Usually occurs on walls or under overhangs in clear water.

Abundance: Usually uncommon.

Similar species: Pavona varians , Pavona venosa

Taxonomic note: Source reference: Veron (2000). Taxonomic references: Veron and Pichon (1980), Dai and Lin (1992). Additional identification guides: Randall and Myers (1983), Veron (1986), Sheppard and Sheppard (1991), Nishihira and Veron (1995).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Gardineroseris planulata.  Tanzania.  A large submassive colony on a shallow reef slope.  Charlie Veron.

Gardineroseris planulata.Tanzania.A large submassive colony on a shallow reef slope.Charlie Veron.

Gardineroseris planulata.  Great Barrier Reef, Australia.  Colony surface.  Charlie Veron.

Gardineroseris planulata.Great Barrier Reef, Australia.Colony surface.Charlie Veron.

Gardineroseris planulata.  Great Barrier Reef, Australia.  Colony surface.  Ed Lovell.

Gardineroseris planulata.Great Barrier Reef, Australia.Colony surface.Ed Lovell.

Gardineroseris planulata.  Philippines.  Surface detail.  Charlie Veron.

Gardineroseris planulata.Philippines.Surface detail.Charlie Veron.

Gardineroseris planulata.  Great Barrier Reef, Australia.  Corallite detail.  Charlie Veron.

Gardineroseris planulata.Great Barrier Reef, Australia.Corallite detail.Charlie Veron.

Gardineroseris planulata.  Great Barrier Reef, Australia.  Showing corallites.

Gardineroseris planulata.Great Barrier Reef, Australia.Showing corallites.

Gardineroseris planulata.  Great Barrier Reef, Australia.  Showing corallites.

Gardineroseris planulata.Great Barrier Reef, Australia.Showing corallites.

Gardineroseris planulata.  Great Barrier Reef, Australia.  Showing colony surface.

Gardineroseris planulata.Great Barrier Reef, Australia.Showing colony surface.

Gardineroseris planulata.  Great Barrier Reef, Australia.  Showing massive colony.

Gardineroseris planulata.Great Barrier Reef, Australia.Showing massive colony.

Gardineroseris planulata.  Great Barrier Reef, Australia.  Showing convoluted corallites.

Gardineroseris planulata.Great Barrier Reef, Australia.Showing convoluted corallites.