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Acropora abrolhosensis

Veron, 1985

Colonies are arborescent with straight cylindrical branches. These may form stands over 10 metres across and 2 metres high. Branches are either widely separated or compact, depending on space availability. Axial corallites are large and exsert. Radial corallites are outward facing, appressed to tubular, with circular openings. One or more tentacles per polyp are usually extended during the day.

Colour: Brown, blue or pink with pale branch tips.

Habitat: Lagoons or reef slopes protected from strong wave action.

Abundance: Common, especially at the Houtman Abrolhos Islands of south-west Australia.

Similar species: Acropora copiosa , Acropora loisetteae

Taxonomic note: Source reference: Veron (2000). Taxonomic references: Veron (1985), Wallace (1999). Additional identification guides: Veron (1986), Nishihira and Veron (1995).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Acropora abrolhosensis.  Houtman Abrolhos Islands, south-western Australia.  Large monospecific stand.  Charlie Veron.

Acropora abrolhosensis. Houtman Abrolhos Islands, south-western Australia. Large monospecific stand. Charlie Veron.

Acropora abrolhosensis.  Houtman Abrolhos Islands, south-western Australia.  Branch shape due to space availability.  Charlie Veron.

Acropora abrolhosensis. Houtman Abrolhos Islands, south-western Australia. Branch shape due to space availability. Charlie Veron.

Acropora abrolhosensis.  Ryukyu Islands, Japan.  Compact colonies in shallow lagoon.  Charlie Veron.

Acropora abrolhosensis. Ryukyu Islands, Japan. Compact colonies in shallow lagoon. Charlie Veron.

Acropora abrolhosensis.  Houtman Abrolhos Islands, south-western Australia.  Branches with tentacles extended.  Charlie Veron.

Acropora abrolhosensis. Houtman Abrolhos Islands, south-western Australia. Branches with tentacles extended. Charlie Veron.

Acropora abrolhosensis.  Houtman Abrolhos Islands, south-western Australia.  Branches with tentacles retracted.  Charlie Veron.

Acropora abrolhosensis. Houtman Abrolhos Islands, south-western Australia. Branches with tentacles retracted. Charlie Veron.

Acropora abrolhosensis.  Houtman Abrolhos Islands, south-western Australia.  Corallite detail.  Ed Lovell.

Acropora abrolhosensis. Houtman Abrolhos Islands, south-western Australia. Corallite detail. Ed Lovell.

Acropora abrolhosensis.  Houtman Abrolhos Islands, south-western Australia.  Showing thick branch tip.

Acropora abrolhosensis. Houtman Abrolhos Islands, south-western Australia. Showing thick branch tip.

Acropora abrolhosensis.  Ningaloo Reefs, western Australia.  Showing branching pattern.

Acropora abrolhosensis. Ningaloo Reefs, western Australia. Showing branching pattern.

Acropora abrolhosensis.  Ningaloo Reefs, western Australia.  Showing branching pattern.

Acropora abrolhosensis. Ningaloo Reefs, western Australia. Showing branching pattern.

Acropora abrolhosensis.  Ningaloo Reefs, western Australia.  Showing radial corallites.

Acropora abrolhosensis. Ningaloo Reefs, western Australia. Showing radial corallites.

Acropora abrolhosensis.  Houtman Abrolhos Islands, south-western Australia.  Showing thin branch tip.

Acropora abrolhosensis. Houtman Abrolhos Islands, south-western Australia. Showing thin branch tip.