Pelagia noctiluca is a jellyfish in the family Pelagiidae.It is a beautiful jellyfish, very itching, with eight long filaments (retractable tentacles) that can cause painful burns to the bathers. In the depths of Portofino, it’s quite a common sight, especially when exploring the submerged rocky base beneath the Lighthouse. This area boasts countless nooks and crannies, revealing an incredibly diverse ecosystem. Its coloration is very varied, with often spotted maculature but sometimes even lighter color. Pretty big, it has an umbrella that can reach 20-25 centimeters in diameter, and tentacles that lie out can be long over two meters.