Cyanea rosea Click to enlarge image
Lion's Mane Jellyfish, Cyanea rosea. Image: Dr Isobel Bennett
© Australian Museum

Fast Facts

  • Classification
    Genus
    Cyanea
    Species
    rosea
    Family
    Cyaneidae
    Order
    Semaeostomeae
    Class
    Scyphozoa
    Phylum
    Cnidaria
    Kingdom
    Animalia
  • Size Range
    Bell: 1 m across; tentacles up to 10 m

Introduction

The Pink Lion's Mane Jellyfish can grow to be one of the largest of all jellyfishes.


What do Pink Lion's Mane Jellyfish look like?

Identification

The Pink Lion's Mane Jellyfish's disc-shaped bell can be over 1 m across and its trailing tentacles can reach more than 10 m in length. These tentacles are very fine and difficult to see.


Pink Lion's Mane Jellyfish, Cyanea rosea
Pink Lion's Mane Jellyfish, Cyanea rosea. Image: selanie
© CC BY-NC 4.0

Where do Pink Lion's Mane Jellyfish live?

Habitat

The Pink Lion's Mane Jellyfish lives in coastal waters and oceans.

Distribution

The Pink Lion's Mane Jellyfish is found in marine waters throughout Southeastern Australia and New Zealand.


Distribution data sourced from the Atlas of Living Australia

How have Pink Lion's Mane Jellyfish adapted?

Other behaviours and adaptations

The tentacles can extend outwards in a fan-like trap through which only the smallest of animals can pass without being caught. Large individuals often have many small fish that live near the bell of the jellyfish and avoid the stinging tentacles. This gives the fish protection from predators, as few animals will approach a large Pink Lion's Mane Jellyfish.


Pink Lion's Mane Jellyfish, Cyanea rosea
Pink Lion's Mane Jellyfish, Cyanea rosea. Image: Richard Ling
© CC BY-NC-ND 4.0

Are Pink Lion's Mane Jellyfish dangerous to humans?

Danger to humans

These jellyfish can deliver a painful sting and their fine tentacles are often difficult for swimmers to avoid. They are best given a wide berth. If stung, apply a cold pack to relieve the pain and seek medical attention if necessary.