“Morbakka”, another cubomedusan

There is a large member of the cubomedusan family, which has not yet been formally identified, that is very similar to Tamoya haplonema. It is present in Indo-Pacific tropical waters but is also present in colder Australian waters. A case of severe envenomation in South Queensland is discussed and its clinical and histological features are described. Vinegar inactivates the undischarged nematocysts of this species and is recommended as the initial first-aid treatment.