immortal jellyfish (Turritopsis dohrnii)
spotted jelly (Mastigias papua); lagoon jelly; golden medusa; Papuan jellyfish
Portuguese man-of-war (Physalia physalis)
Nomura's jellyfish (Nemopilema nomurai)
northern sea nettle (Chrysaora melanaster)
jimble (Carybdea rastoni)
upside-down jellyfish (Cassiopea ornata); jellyfish of the genus Cassiopea; traditional love hotel; traditional Japanese inn specially for couples
upside-down jellyfish (Cassiopea ornata); jellyfish of the genus Cassiopea; traditional love hotel; traditional Japanese inn specially for couples
habu jellyfish (Chironex yamaguchii); habu-kurage
lion's mane jellyfish (Cyanea capillata)
comb jelly (any jellyfish-like animal of the phylum Ctenophora)
something that one would not expect to exist; something exceedingly rare; (lit.) jellyfish bones
box jellyfish (Cubozoa spp.); sea wasp
Morbakka virulenta (species of box jellyfish)
crown jellyfish (Coronatae spp.); coronated jellyfish
freshwater jellyfish (Craspedacusta sowerbii); peach blossom jellyfish
star jelly (Nostoc commune); mare's eggs