The Cotylorhiza Tuberculata is a species of jellyfish, of the phylum Cnidaria, also known as the Mediterranean jelly. It is commonly found in the Mediterranean Sea, Aegean Sea, and Adriatic Sea. It can reach 40 cm in diameter. It seems that this jellyfish’s sting has very little or no effect on humans. The cnidarian’s smooth, elevated central dome is surrounded by a gutter-like ring. Its marginal lappets are elongated and subrectangular. Each moutharm bifurcates near its base and branches several times. In addition to some larger appendages, there are many short, club-shaped ones that bear disk-like ends.
A curious aspect is that this type of jellyfish are always accompanied by some minnows, such as mackerel, cod, etc., which, being immunized against the stinging poison, seek shelter among their tentacles in case of danger.
Beautiful and elegant lends itself well to underwater photography and video footage, making itself admired by all those who love the sea.