Olindias formosa - These jellyfish have bright light green or pink tentacles. They catch little fishes with highly-virulent tentacles and eat them.
Chrysaora pacifica - widely distributed in Japan. Tentacles reaching several meters and highly-virulent, harmful for human.
Cassiopea - these jellyfish usually live at the bottom of the sea.
Beroe - Cucumber shaped comb jellies with a large mouth for eating other comb jellies.