Chironex

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