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Indo-West Pacific: East Africa and the Red Sea to Australia and Japan.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm Max length : 7.0 cm WD 雄鱼/尚未辨别雌雄; (Ref. 800)
Maximum primary spine length: 8.0 cm. Inhabits shallow reef areas at depths of 0 to 15 m. Hides in holes or under corals at day time (Ref. 800); and burrows in coral rock (Refs. 81254, 129602). Feeds on algae and small invertebrates (Ref. 800). Associated with coral communities. Nocturnal. Feeds on encrusting organisms (Ref. 129602).
Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Members of the class Echinoidea are gonochoric. Fertilization is external. Brooding is common, eggs are held either on the peristome, around the periproct or deep into the concavities on the petaloids. Life cycle: Embryos develop into planktotrophic larvae (echinoplateus) and live for several months before they sink to the bottom using their tube feet to adhere on the ground where they metamorphose into young urchins.