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Stephanocoenia michelinii

Milne Edwards and Haime, 1848

Colonies are usually less than 0.3 metres across, massive to encrusting and usually form flattened domes. Septa are neatly arranged in two alternating orders that do not fuse with the columella. Columellae and pali are both well developed.

Colour: Tentacles are darker than the surrounding coenosteum and are extended day and night. If the colony is touched, tentacles promptly retract and the colony pales slightly.

Habitat: Shallow reef environments, especially surge channels.

Abundance: Sometimes common, rare in Brazil.

Similar species:

Taxonomic note: Source reference: Veron (2000). Taxonomic references: Laborel (1969), Cairns (1982). Additional identification guides: Colin (1978), Humann (1993).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Stephanocoenia michelinii.  Caribbean.  This species forms encrusting or small cushion-shaped colonies.  Mary Stafford-Smith.

Stephanocoenia michelinii.Caribbean.This species forms encrusting or small cushion-shaped colonies.Mary Stafford-Smith.

Stephanocoenia michelinii.  Caribbean.  Small angular corallites are clearly seen when tentacles are retracted.  Mary Stafford-Smith.

Stephanocoenia michelinii.Caribbean.Small angular corallites are clearly seen when tentacles are retracted.Mary Stafford-Smith.

Stephanocoenia michelinii.  Caribbean.  Corallite detail with tentacles partly extended.  Mary Stafford-Smith.

Stephanocoenia michelinii.Caribbean.Corallite detail with tentacles partly extended.Mary Stafford-Smith.

Stephanocoenia michelinii. Skeletal detail.  Geoff Kelly.

Stephanocoenia michelinii.Skeletal detail.Geoff Kelly.

Stephanocoenia michelinii.  Caribbean.  Showing colony surface.

Stephanocoenia michelinii.Caribbean.Showing colony surface.

Stephanocoenia michelinii.  Caribbean.  Showing corallites.

Stephanocoenia michelinii.Caribbean.Showing corallites.

Stephanocoenia michelinii.  Caribbean.  Showing corallites.

Stephanocoenia michelinii.Caribbean.Showing corallites.