Pseudosiderastrea tayami

Yabe and Sugiyama, 1935

Colonies are encrusting to slightly dome-shaped and up to 160 millimetres across. Corallites are cerioid, polygonal and 3-6 millimetres diameter. Septa are evenly spaced and usually fuse with each other in fan-like groups. They have fine, saw-like teeth. Columellae consist of one to four pinnules.

Colour: Pale grey with distinctive white corallite walls. Uniform brown in the western Indian Ocean.

Habitat: Very shallow water, attached to bare rock.

Abundance: Uncommon and cryptic.

Similar species: Siderastrea savignyana

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Veron and Pichon (1980). Additional identification guides: Veron (1986), Sheppard and Sheppard (1991), Nishihira and Veron (1995), Coles (1996).