Common Kingslayer (Malo kingi)
…a species of Irukandji jellyfish that inhabits the waters off of Australia. This species gets its name after one of its victims who was named Robert King, a tourist who was stung and killed. Like other cubozoans this species is very small with a bell no larger than a cubic centimeter. The common kingslayer uses its long and highly venomous tentacles, which can measure around 3ft long, to catch prey which usually consists of fast swimming fish.
M.kingi’s venom is highly potent and causes Irukandji syndrome which will cause severe pain, vomiting and rapid rise in blood pressure in humans.