rhopilema nomadica jellyfish at the mediterranean seacoast. vermicular filaments with venomous stinging cells can cause painful

beach bell burn cell coast coastal danger editorial illustrative image injury israel jelly jellyfish marine mediterranean meduza nomadic pain painful photo rhopilema risk roam sand scorch scyphozoa sea seashore seaside season shore sting stock summer sun surface swim tentacles touch toxin vacation vertebrate water wave