Blue Fireworks Scoly
A variant of Scolymia (Doughnut / Button Coral) (Homophyllia australis)

Photo: (c) Susan Prior, some rights reserved (CC BY) · CC BY
Representative Scolymia (Doughnut / Button Coral) image. A confirmed image of this exact morph isn't available yet.
A subtle Australian scoly with a deep slate grey polyp, marked by fine red and green stripes.