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Acropora roseni

Wallace, 1999

Colonies are prostrate and up to 2 metres across. Branches are mostly contorted and irregularly fused except towards the periphery of large colonies where they are relatively well defined and have upturned ends. Branches from the central and peripheral parts of the same colony have dissimilar shapes. Axial corallites are only distinguishable on well defined peripheral branches. Elsewhere axial, incipient axial and radial corallites are a confusion of different shapes and sizes and face different directions. The coenosteum is coarse.

Colour: Dull greenish-brown.

Habitat: Upper reef slopes exposed to strong wave action.

Abundance: Uncommon.

Similar species: Acropora irregularis

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Wallace (1999).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Acropora roseni.  Madagascar.  Colony of mostly contorted branches.  Charlie Veron.

Acropora roseni.Madagascar.Colony of mostly contorted branches.Charlie Veron.

Acropora roseni.  Madagascar.  Colony of A. roseni (right) and A. irregularis (left).  Charlie Veron.

Acropora roseni.Madagascar.Colony of A. roseni (right) and A. irregularis (left).Charlie Veron.

Acropora roseni.  Madagascar.  Surface detail of branches.  Charlie Veron.

Acropora roseni.Madagascar.Surface detail of branches.Charlie Veron.

Acropora roseni.  Madagascar.  Detail of contorted corallites of fiddering shapes and sizes.  Charlie Veron.

Acropora roseni.Madagascar.Detail of contorted corallites of fiddering shapes and sizes.Charlie Veron.

Acropora roseni.  Madagascar.  Colony of well formed branches.  Charlie Veron.

Acropora roseni.Madagascar.Colony of well formed branches.Charlie Veron.

Acropora roseni.  Madagascar.  Showing corallites.

Acropora roseni.Madagascar.Showing corallites.

Acropora roseni.  Madagascar.  Showing branch end.

Acropora roseni.Madagascar.Showing branch end.

Acropora roseni.  Madagascar.  Showing corallites.

Acropora roseni.Madagascar.Showing corallites.