Marine Wildlife Encyclopedia
Flower Urchin Toxopneustes pileolus
The flower urchin is extremely venomous and has caused rare fatalities. It has short, inconspicuous spines through which emerge an array of flowerlike appendages called pedicellariae. These help to keep the flower urchin’s surface clean but will sting animals that touch it. The pedicellariae also hold pieces of shell, rubble, and seaweed that shade the urchin from sunlight. Flower urchins may partially bury themselves, despite having few predators.