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Anomastraea irregularis

Marenzeller, 1901

Colonies are flat or submassive. Corallites are submeandroid to cerioid. Walls are thin and septa have irregularly fused margins. Septa are widely spaced and uniform, giving the colony surface a neat appearance. Tentacles are usually at least partly extended during the day.

Colour: Bluish-grey or cream. Polyps are dark brown.

Habitat: Turbid environments at the base of reefs and in intertidal pools.

Abundance: Common in south-east Africa, uncommon elsewhere.

Similar species: Coeloseris mayeri

Taxonomic note: Taxonomic note: There are substantial differences between north-west and south-west Indian Ocean occurrences of this species. Source reference: Veron (2000). Taxonomic reference: von Marenzeller?s original description/specimens. Additional identification guides: Sheppard and Sheppard (1991), Coles (1996), Carpenter et al. (1997).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Anomastraea irregularis.  Oman.  A massive colony at the bottom of a reef slope.  Richard Keech.

Anomastraea irregularis.Oman.A massive colony at the bottom of a reef slope.Richard Keech.

Anomastraea irregularis.  South Africa.  A massive colony in an intertidal rock pool.  Michael Schleyer.

Anomastraea irregularis.South Africa.A massive colony in an intertidal rock pool.Michael Schleyer.

Anomastraea irregularis. Skeletal detail.  Geoff Kelly.

Anomastraea irregularis.Skeletal detail.Geoff Kelly.

Anomastraea irregularis.  Oman.  Showing corallites.

Anomastraea irregularis.Oman.Showing corallites.

Anomastraea irregularis.  Tanzania.  Showing corallites.

Anomastraea irregularis.Tanzania.Showing corallites.

Anomastraea irregularis.  Tanzania.  Showing corallites.

Anomastraea irregularis.Tanzania.Showing corallites.