Lytechinus variegatus – aboral test of a dead animal
(photo Extavour)

Lytechinus variegatus – aboral view of a live animal
(photo Extavour)

Lytechinus variegatus – aboral close up showing madreporite. (photo Extavour)

Lytechinus variegatus – view of aboral pole of the skeleton from within the animal: five anal pores, five rows of tube foot openings, and the five arms of the gonad are visible.
(photo Extavour)

Lytechinus variegatus – genital plates dissected and cleaned. (photo Extavour)

Lytechinus variegatus – pluteus larva
(photo Extavour)

Lytechinus variegatus – view of madreporite opening from within the animal; egg release has been induced and eggs are spilling into the body cavity.
(photo Extavour)