One member of this family, the sea wasp, Chironex fleckeri, is "claimed to be the most venomous marine animal known," according to the Australian Institute of Marine Science.
Jedna vrsta iz ove porodice, morska osa (Chironex fleckeri) se prema tvrdnjama Instituta za morske znanosti iz Australije (Australian Institute of Marine Science) smatra najotrovnijom poznatom morskom životinjom.