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Found in a variety of sediment types, from shell gravel, fine to coarse sand, and silt. Burrows shallow in fine sediment with an open funnel of approximately 2 cm length; borrows deeper in shell gravel substrate without constructing a funnel (Ref. 96613). Feeding assumed based on Genus.
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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.