Irukandji (Carukia Barnesi and several other unidentified species that produce Irukandji Syndrome) - lurks in the waters of Northen Australia,
mostly near Cairns and the Great Barrier Reef. Irregular sea currents
can easily move it to the shore.
Irukandji is extremely painful and occasionally deadly and has been seen as far south as Brisbane.
It's mostly a problem from November - May, but has been recorded
in all months except July and August..More.