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Agaricia undata

(Ellis and Solander, 1786)

Colonies form flat or upright unifacial explanate plates with corallites in long, roughly concentric valleys. Valleys are usually widely (6-7 mm) spaced, flat-bottomed and indistinct. Corallites are small and close together (5-8 per cm) and occur on the outward facing edge of valley walls (collines). Columellae are well developed.

Colour: Usually dark yellow, green or brown.

Habitat: Shallow reef environments.

Abundance: Uncommon, rare in Brazil.

Similar species: Agaricia fragilis

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Wells (1973b) Fenner (1999). Additional identification guides: Colin (1978), Humann (1993).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Agaricia undata.  Brazil.  A small plate.  Charlie Veron.

Agaricia undata.Brazil.A small plate.Charlie Veron.

Agaricia undata.  Caribbean.  Showing frond surface.

Agaricia undata.Caribbean.Showing frond surface.

Agaricia undata.  Caribbean.  Showing corallites.

Agaricia undata.Caribbean.Showing corallites.