Carybdeida is an order of

box jellyfish Box jellyfish (class Cubozoa) are cnidarian invertebrates distinguished by their box-like (i.e. cube-shaped) body. Some species of box jellyfish produce potent venom delivered by contact with their tentacles. Stings from some species, including '' ...

. There are five families within the order. They are distinguished from other box jellyfish by the presence of unbranched muscular bases at the corners of the cubic umbrella. Most species have four tentacles.

References

Cubozoa {{Cubozoa-stub