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Acropora samoensis

(Brook, 1892)

Colonies are digitate, corymbose or prostrate, with curved branches which only slightly taper. Colonies may be over one metre across. Axial corallites are dome-shaped and more than twice the size of radial corallites. Radial corallites are of two sizes, thick walled, tubular, and only slightly increase in size down branches. Incipient axial corallites and branchlets develop towards the base of branches.

Colour: Usually purple, blue (which may photograph pink) or cream.

Habitat: Upper reef slopes.

Abundance: Usually uncommon.

Similar species: Acropora torresiana

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 samoensis.  Middleton Reef, south-eastern Australia.  Usual branching pattern.  Ed Lovell.

Acropora samoensis.Middleton Reef, south-eastern Australia.Usual branching pattern.Ed Lovell.

Acropora samoensis.  Papua New Guinea.  Branch detail.  Jim Maragos.

Acropora samoensis.Papua New Guinea.Branch detail.Jim Maragos.

Acropora samoensis.  Cook Islands, south-western Pacific.  Corallite detail.  Gustav Paulay.

Acropora samoensis.Cook Islands, south-western Pacific.Corallite detail.Gustav Paulay.

Acropora samoensis.  Red Sea.  A small plate.  Charlie Veron.

Acropora samoensis.Red Sea.A small plate.Charlie Veron.

Acropora samoensis.  Great Barrier Reef, Australia.  Showing branch tip.

Acropora samoensis.Great Barrier Reef, Australia.Showing branch tip.

Acropora samoensis.  Coral Sea.  Showing characteristic branching pattern.

Acropora samoensis.Coral Sea.Showing characteristic branching pattern.

Acropora samoensis.  Coral Sea.  Showing branch tip.

Acropora samoensis.Coral Sea.Showing branch tip.

Acropora samoensis.  Great Barrier Reef, Australia.  Showing branch tip.

Acropora samoensis.Great Barrier Reef, Australia.Showing branch tip.

Acropora samoensis.  Great Barrier Reef, Australia.  Showing skeletal detail.

Acropora samoensis.Great Barrier Reef, Australia.Showing skeletal detail.