Cyanea purpurea is a species of true jellyfish in the family Cyaneidae.[1] It has been found off the coasts of Sakhalin[2] and China. The generic name, Cyanea, is derived from the Latin, meaning "deep or dark blue in color". The specific epithet, purpurea, is derived from the Latin, meaning "purple", in reference to its violet color.
Cyanea purpurea has a disc-shaped bell around 36cm (14inches) in diameter. The bell has a violet color. The margin of the bell consists of 16 broad lobes. Its tentacles are grouped into eight tracts. The oral arms of the species are a reddish color.