sea walnut or comb jellyfish, mnemiopsis leidyi. this is an invasive species in the sound, the stretch of waters between

sea walnut comb jellyfish mnemiopsis leidyi the sound oresund invasive species green close up malmo scuba diving scandinavia yellow jelly sweden animal life deep marine transparent aquatic ocean dark background colour dangerous swim underwater creature poison swimming invertebrate light black nature water beautiful closeup action alien brilliant dive glowing lighting peaceful blue medusa floating