Also known as Carolinus Variegated Urchin, Common Sea Urchin, Decorator Urchin, Globular Sea Urchin, Green Sea Urchin, Pincushion Urchin, Sea Hedgehog, Variegatus Urchin.
Found singly, or in large groups, sometimes covered in algae and mollusc shell, moving across rubble, sand, and seagrass beds, over sub-tidal areas of bays and lagoons.
They feed on algae and seagrass.
Length - 11cm
Depth - 0-50m
Widespread Western Central Atlantic, Caribbean
Sea Urchins use tubed feet to get around, often in large impenetrable masses for protection.
Sometimes they hitch a lift on the back of crabs.
They have well developed jaws for grinding their prey.
Their anus is on top in most sea urchins, except the heart urchins where it is at the rear.
Predators of sea urchins are triggerfish and large wrasses, who nibble away at their spines before turning them over to eat the fleshy undersides.
Sea Urchins are highly venomous and can piece through a wet-suit.
Some are sensitive to light and have the ability to shoot venom loaded spines at a short distance.
To be avoided!! Ref: https://en.wikipedia.org/wiki/Lytechinus_variegatus