''Chironex'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

box jellyfish Box jellyfish (class Cubozoa) are cnidaria Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in Fresh water, freshwater and Marine habitats, marine environments, predominantly the latt ...

in the family

Chirodropidae Chirodropidae is a family of venomous box jellyfish within the class Cubozoa. Like other members of the order Chirodropida, they have branched pedalia (muscular bases at the corners of their cubic umbrella), in contrast to the unbranched pedalia ...

. Their stings are highly

venomous Venom or zootoxin is a type of toxin produced by an animal that is actively delivered through a wound by means of a bite, sting, or similar action. The toxin is delivered through a specially evolved ''venom apparatus'', such as fangs or a ...

, and have caused human fatalities. Based on present knowledge, the genus is restricted to the central

Indo-Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...

, ranging from southern Japan to northern Australia.Fenner, P. J. (2000).
Chironex fleckeri – the north Australian box-jellyfish.
' marine-medic.com

Species

The

World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific speciali ...

lists the following species: *''

Chironex fleckeri ''Chironex fleckeri'', commonly known as the Australian box jelly, and nicknamed the sea wasp, is a species of extremely venomous box jellyfish found in coastal waters from northern Australia and New Guinea to Malaysia, the Philippines and Vi ...

'' Southcott, 1956 *''

Chironex indrasaksajiae ''Chironex indrasaksajiae'', locally known as Mangkaprun Klong, Mangkaprun Sarhai or Sarong, is a species of box jellyfish in a coastal water of the northern and eastern Gulf of Thailand. It has been accused of causing fatalities in the area as ...

'' Sucharitakul, 2017 *'' Chironex yamaguchii'' Lewis & Bentlage, 2009

References

Chirodropidae Medusozoa genera {{Cubozoa-stub