Chironex is a genus of box jellyfish in the family Chirodropidae. Their stings are highly venomous, and have caused human fatalities. Based on present knowledge, the genus is restricted to the central Indo-Pacific, ranging from southern Japan to northern Australia. Species The World Register of Marine Species lists the following species: Chironex fleckeri Southcott, 1956 Chironex indrasaksajiae Sucharitakul, 2017 Chironex yamaguchii Lewis & Bentlage, 2009 References Chirodropidae Medusozoa genera