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Coscinaraea hahazimaensis

Yabe and Sugiyama, 1936

Colonies are encrusting to massive. Corallites are cerioid or are in small groups separated by sharply defined walls. Septo-costae are thin, with saw-tooth margins. Most are fused into fan-like groups. Columellae consist of a few pinnules.

Colour: Reddish-brown or grey.

Habitat: Rocky foreshores.

Abundance: Rare.

Similar species: Coscinaraea exesa

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Yabe and Sugiyama’s original description/specimens. Additional identification guide: Nishihira and Veron (1995).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Coscinaraea hahazimaensis.  Mainland Japan.  Valleys are short and contorted.  Charlie Veron.

Coscinaraea hahazimaensis.Mainland Japan.Valleys are short and contorted.Charlie Veron.

Coscinaraea hahazimaensis. Skeletal detail.  Geoff Kelly.

Coscinaraea hahazimaensis.Skeletal detail.Geoff Kelly.

Coscinaraea hahazimaensis.  Ryukyu Islands, Japan.  Showing colony surface.

Coscinaraea hahazimaensis.Ryukyu Islands, Japan.Showing colony surface.

Coscinaraea hahazimaensis.  Ryukyu Islands, Japan.  Showing corallites.

Coscinaraea hahazimaensis.Ryukyu Islands, Japan.Showing corallites.

Coscinaraea hahazimaensis.  Mainland Japan.  Showing corallites.

Coscinaraea hahazimaensis.Mainland Japan.Showing corallites.