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Acropora longicyathus

(Milne Edwards and Haime, 1860)

Colonies are subarborescent, with bottlebrush branches where upright main branches sometimes form clumps. Axial and incipient axial corallites may be indistinguishable. Radial corallites are appressed. All corallites have thick walls with round openings.

Colour: Usually uniform pale to dark brown, occasionally blue.

Habitat: A wide range of reef environments.

Abundance: Common and may be a dominant species on unconsolidated substrates.

Similar species: Acropora navini

Taxonomic note: Source reference: Veron (2000). Taxonomic references: Veron and Wallace (1984), Wallace (1999). Additional identification guides: Veron (1986), Nishihira and Veron (1995).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Acropora longicyathus.  Tanzania.  An extensive stand of elongate branches.  Charlie Veron.

Acropora longicyathus.Tanzania.An extensive stand of elongate branches.Charlie Veron.

Acropora longicyathus.  Philippines.  A thicket.  Charlie Veron.

Acropora longicyathus.Philippines.A thicket.Charlie Veron.

Acropora longicyathus.  Great Barrier Reef, Australia.  Showing branches.  Ed Lovell.

Acropora longicyathus.Great Barrier Reef, Australia.Showing branches.Ed Lovell.

Acropora longicyathus.  Great Barrier Reef, Australia.  Corallite detail.  Charlie Veron.

Acropora longicyathus.Great Barrier Reef, Australia.Corallite detail.Charlie Veron.

Acropora longicyathus.  Great Barrier Reef, Australia.  Showing corallites.

Acropora longicyathus.Great Barrier Reef, Australia.Showing corallites.

Acropora longicyathus.  Great Barrier Reef, Australia.  Showing clump formation.

Acropora longicyathus.Great Barrier Reef, Australia.Showing clump formation.

Acropora longicyathus.  Great Barrier Reef, Australia.  Showing branching pattern.

Acropora longicyathus.Great Barrier Reef, Australia.Showing branching pattern.

Acropora longicyathus.  Great Barrier Reef, Australia.  Showing characteristic branching pattern.

Acropora longicyathus.Great Barrier Reef, Australia.Showing characteristic branching pattern.

Acropora longicyathus.  Coral Sea.  Showing branch tips.

Acropora longicyathus.Coral Sea.Showing branch tips.