Coscinaraea hahazimaensis
Yabe and Sugiyama, 1936
Description: 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.
Color: Reddish-brown or grey.
Habitat: Rocky foreshores.
Abundance: Rare.
Similar Species: Coscinaraea exesa, which has larger corallites which are not aligned in valleys.
Source reference: Veron (2000). Taxonomic reference: Yabe and Sugiyama’s original description/specimens. Identification guide: Nishihira and Veron (1995).
Valleys are short and contorted. Honshu, Japan Photograph: Charlie Veron
Skeletal detail. Corallite detail. Drawing: Geoff Kelly