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Stinging jellyfish

Classifying box jellyfish

Chirodropid jellyfish

Distribution & abundance

Life cycle

Vision & movement

Feeding & venom

The sting

Irukandji syndrome

Preventing the sting

Future research

First aid

Other stinging jellyfish

Bluebottles & Pacific man-o-war

More information


 

Carybdeid jellyfish

Carybdeid jellyfish usually only have a single tentacle hanging from each corner of their box-shaped bodies. They have stinging cells on both body and tentacles.

Carybdea rastonii
Photo by Karen Gowlett-Holmes

Carybdea rastonii, jimble

  • About 15-40mm across
  • Found in southern waters from Coffs Harbour, NSW, to Albany, Western Australia

Carybdea xaymacana
Photo by Lisa-ann Gershwin

Carybdea xaymacana

  • Similar to Carybdea rastonii but smaller, rarely more than 15-25mm tall
  • Common off Perth, from Busselton to Geraldton. Also found in Cairns region

Carybdea sivickisi
Photo by Bill Hamner

Carybdea sivickisi

  • Up to 8mm tall, with adhesive pads on top of body, and orange and brown striped tentacles
  • Common in algal beds of Magnetic Island near Townsville, the Whitsundays, Tasmania and South Australia

Tripedalia binata
Photo by Lisa-ann Gershwin

Tripedalia binata

  • Bell usually less than 10mm, with two tentacles on each corner
  • So far, only found in Darwin region, near Weipa and Cairns, typically among mangroves

Morbakka
Photo by Ben Cropp

Fire jelly, Morbakka or Moreton Bay stinger

  • Often erroneously called Tamoya (which do not occur in Australia)
  • At least 3 undescribed species
  • 60-80mm wide
  • One flattened tentacle up to 1m long in each corner of bell
  • Found from Port Douglas Queensland to Sydney, NSW

Irukandji jellyfish

Stings from several species of almost transparent jellyfish may produce Irukandji syndrome in the victim. The sting from some species can cause very high blood pressure which could be life-threatening. Found near tropical islands, beaches and the outer reef.

Carukia barnesi
Photo by Lisa-ann Gershwin

Carukia barnesi

  • Almost invisible in water
  • About 10mm across bell with one tentacle from each corner
  • Found close to the coast between Port Douglas and the Whitsundays, Queensland
  • Stings cause Irukandji syndrome

Undescribed carybdeid
Photo by Mark Alexander

Undescribed carybdeids

Stings from several species of as yet undescribed carybdeids can produce Irukandji syndrome.