''Morbakka fenneri'', also known as the Moreton Bay stinger or the fire jelly, is a small box jellyfish found in the waters of

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

and

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

. It has a transparent bell shape with four mauve colored tentacles that are each 50cm long. It is hard to capture this jellyfish to study it due to its small size, fragility, toxicity, and similarity to other species of box jellyfish. The sting from this species results in symptoms similar to

Irukandji syndrome Irukandji syndrome is a condition that results from envenomation by certain box jellyfish. In rare instances the sting may result in cardiac arrest and death. The most common jellyfish involved is the ''Carukia barnesi'', a species of Irukandji ...

. The wound is typically 10mm wide and is followed by an immediate burning sensation. If left untreated, it can become necrose, pruritic, and vesicule.

References

Animals described in 2008 Cnidarians of the Pacific Ocean Carukiidae {{Cubozoa-stub