Colour in life: uniformly fawn (Humphreys, 1981). Also distributed in SE Arabia, Persian Gulf, 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), Lakshadweep (India)(Sastry, 1991), Andaman Is. (Sastry, 1997). General distribution: circumtropical (Tortonese, 1980); tropicopolitan, depth range 0-29 m. (Rowe & Gates, 1995); east coast of Africa to Hawaiian Islands (Sastry, 1991).
- 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.