Colour in life: uniformly blue, grey, pink, purple or fawn. This contrasts with Pacific specimens from Palao examined by A.M. Clark where they were all shades of blue (Humphreys, 1981). Also distributed in Marshall Islands, Gilbert Islands, Guam, Solomon Islands, New Caledonia (Clark, 1954); Maldive area, Ceylon bay of Bengal, East Indies, north Australia, Philippine, China, south Japan, South Pacific Is. and Hawaiian Is. (Clark & Rowe, 1971); Australia (Rowe & Gates (1995) and Kalk (1958)); Lakshadweep (India)(Sastry, 1991). General distribution: tropical, Indo-Pacific Ocean, depth range 0-60 m. (Rowe & Gates (1995) and Kalk (1958)); East coast of Africa to Hawaiian Islands (Sastry, 1991). Ecology: benthic, inshore, continental shelf, coral reefs (Rowe & Gates, 1995).
- Clark, A.M. and F.W.E. Rowe. (1971). Monograph of Shallow-water Indo-West Pacific Echinoderms. Trustees of the British Museum (Natural History): London. x + 238 p. + 30 pls.