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Mussismilia harttii

(Verrill, 1868)

Colonies have tubular (phaceloid) corallites and are often over one metre across. Individual corallites or small groups of corallites are usually not connected or have dead basal connections and are readily broken apart and scattered. Corallites are rounded, averaging 15-20 millimetres diameter and vary in shape as illustrated. Septa of living colonies have rounded, bead-like, dentations.

Colour: Mostly bluish-grey.

Habitat: Shallow turbid reef environments.

Abundance: Common.

Similar species:

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Laborel (1969). Additional identification guide: Hetzel and Castro (1994).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Mussismilia harttii.  Brazil.  This species forms very distinctive phaceloid colonies.  Charlie Veron.

Mussismilia harttii.Brazil.This species forms very distinctive phaceloid colonies.Charlie Veron.

Mussismilia harttii.  null.  Showing the long tubular corallites of a damaged colony.  null.

Mussismilia harttii.null.Showing the long tubular corallites of a damaged colony.null.

Mussismilia harttii.  null.  Corallite detail.  null.

Mussismilia harttii.null.Corallite detail.null.

Mussismilia harttii.  Brazil.  Showing corallites.

Mussismilia harttii.Brazil.Showing corallites.

Mussismilia harttii.  Brazil.  Showing corallites.

Mussismilia harttii.Brazil.Showing corallites.

Mussismilia harttii.  Brazil.  Showing corallites.

Mussismilia harttii.Brazil.Showing corallites.