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Acropora lamarcki

Veron, 2000

Colonies are corymbose plates that may be over 2 metres across, or irregular cushion-like plates. Plates have short upright branchlets, which are commonly more elongate towards the colony margins. The latter may divide and all branches are up to 15 millimetres thick and taper towards axial corallites, which are slightly exsert, tubular and conspicuous. Radial corallites are appressed with flaring outer lips. They usually form irregular rosettes.

Colour: Uniform brown.

Habitat: Upper reef slopes.

Abundance: Common.

Similar species: Acropora cytherea , Acropora hyacinthus , Acropora microclados

Taxonomic note: Taxonomic note: This is a new name for what may have been Acropora corymbosa Lamarck (1816). Lamarck’s (1816) type specimen (from Mauritius) is missing and the name is not useable. The name A. corymbosa has been applied to many species including A. hyacinthus, A. cytherea, A. microclados and A. anthocercis (Veron and Wallace, 1984). Source reference: Veron (2000). Taxonomic reference: See Scheer and Pillai (1983) who compare the Red Sea ‘A. corymbosa‘ (which is A. parapharaonis) and ‘A. hyacinthus‘ (which is this species), Veron (2002).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Acropora lamarcki.  Red Sea.  Extensive stand of tiered plates.  Charlie Veron.

Acropora lamarcki.Red Sea.Extensive stand of tiered plates.Charlie Veron.

Acropora lamarcki.  Red Sea.  Large tiered plates.  Charlie Veron.

Acropora lamarcki.Red Sea.Large tiered plates.Charlie Veron.

Acropora lamarcki.  Seychelle Islands.  Forming irregular cushions.  Charlie Veron.

Acropora lamarcki.Seychelle Islands.Forming irregular cushions.Charlie Veron.

Acropora lamarcki.  Red Sea.  Plate surface.  Charlie Veron.

Acropora lamarcki.Red Sea.Plate surface.Charlie Veron.

Acropora lamarcki.  Red Sea.  Branchlets near a plate margin.  Mary Stafford-Smith.

Acropora lamarcki.Red Sea.Branchlets near a plate margin.Mary Stafford-Smith.

Acropora lamarcki.  Madagascar.  Corallite detail.  Charlie Veron.

Acropora lamarcki.Madagascar.Corallite detail.Charlie Veron.

Acropora lamarcki.  Tanzania.  Showing branch tip.

Acropora lamarcki.Tanzania.Showing branch tip.

Acropora lamarcki.  Tanzania.  Showing branching pattern.

Acropora lamarcki.Tanzania.Showing branching pattern.

Acropora lamarcki.  Tanzania.  Showing radial corallites.

Acropora lamarcki.Tanzania.Showing radial corallites.

Acropora lamarcki.  Red Sea.  Showing branches.

Acropora lamarcki.Red Sea.Showing branches.

Acropora lamarcki.  Tanzania.  Showing branching pattern.

Acropora lamarcki.Tanzania.Showing branching pattern.

Acropora lamarcki.  Tanzania.  Showing branches.

Acropora lamarcki.Tanzania.Showing branches.

Acropora lamarcki.  Tanzania.  Showing basal branches.

Acropora lamarcki.Tanzania.Showing basal branches.

Acropora lamarcki.  Red Sea.  Showing branching pattern.

Acropora lamarcki.Red Sea.Showing branching pattern.