Iridescent Jelly

Comb Jelly [Mnemiopsis leidyi] at the Aquarium of the Pacific in Long Beach, California

This amazing little creature is a Comb Jelly. The lights in rows on the side of his body are rows of tiny cilia (tiny movable hair like structures). But the light does not come from bioluminescence, the cilia are like tiny little prisms refracting the ambient light as the jelly waves the cilia to move through the water. The resulting wave of small rainbows is quite a show.