a jellyfish in the sea. rhizostoma pulmo

aquatic barrel blue bosphorus burn coast color commonly creature danger deep dustbin dustbinlid fish glowing jelly jellyfish known lid life marine mediterranean natural nature ocean oceanography pain painful pelagia pulmo rhizostoma rhizotomy risk scyphozoa sea seaside season shore soft sting structure summer surface swim technology tentacle toxin translucent transparent tropical turquoise underwater urticant water wildlife