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Plerogyra simplex

Rehberg, 1892

Colonies are branched, the branches being of uniform length and uniformly spaced. Branches are monocentric, forming phaceloid colonies. The coenosteum is smooth, with costae only formed below corallite rims. During the day, vesicles sometimes form a continuous mass although the underlying phaceloid shape can be distinguished. At night, long tentacles are extended from the base of vesicles.

Colour: Cream, grey or pale brown.

Habitat: Shallow protected reef environments especially in turbid water.

Abundance: Uncommon.

Similar species: Euphyllia paraglabrescens , Plerogyra sinuosa

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Hodgson and Ross (1981). Additional identification guide: Colin and Arneson (1995).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Plerogyra simplex.  Papua New Guinea.  Colonies vary from open-branched to compact and dome-shaped. However even fully extended vesicles do not mask the Colonies underlying phaceloid structure.  Charlie Veron.

Plerogyra simplex.Papua New Guinea.Colonies vary from open-branched to compact and dome-shaped. However even fully extended vesicles do not mask the Colonies underlying phaceloid structure.Charlie Veron.

Plerogyra simplex.  Indonesia.  Colonies vary from open-branched to compact and dome-shaped. However even fully extended vesicles do not mask the colonies underlying phaceloid structure.  Valerie Taylor.

Plerogyra simplex.Indonesia.Colonies vary from open-branched to compact and dome-shaped. However even fully extended vesicles do not mask the colonies underlying phaceloid structure.Valerie Taylor.

Plerogyra simplex.  Vanuatu.  Colonies vary from open-branched to compact and dome-shaped. However even fully extended vesicles do not mask the colonies underlying phaceloid structure.  Charlie Veron.

Plerogyra simplex.Vanuatu.Colonies vary from open-branched to compact and dome-shaped. However even fully extended vesicles do not mask the colonies underlying phaceloid structure.Charlie Veron.

Plerogyra simplex.  Papua New Guinea.  Vesicles are the same shape but about half the size as those of P. sinuosa..  Charlie Veron.

Plerogyra simplex.Papua New Guinea.Vesicles are the same shape but about half the size as those of P. sinuosa..Charlie Veron.

Plerogyra simplex.  Indonesia.  A strikingly beautiful coral when tentacles are extended at night..  Gerry Allen.

Plerogyra simplex.Indonesia.A strikingly beautiful coral when tentacles are extended at night..Gerry Allen.

Plerogyra simplex.  Papua New Guinea.  Showing colony formation.

Plerogyra simplex.Papua New Guinea.Showing colony formation.

Plerogyra simplex.  Papua New Guinea.  Showing colony formation.

Plerogyra simplex.Papua New Guinea.Showing colony formation.