I believe it is tamoyidae as opposed to carukiidae

https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:c4be67ba-0eda-4449-9637-55ada058fb3e#classification

and

"Systematic results Phylum Cnidaria Verrill, 1865 Subphylum Medusozoa Petersen, 1979 Class Cubozoa Werner, 1973 Order Carybdeida Gegenbaur, 1856, sensu Werner, 1984 Family Tamoyidae Haeckel, 1880 Genus Malo Gershwin, 2005"

from the initial article, https://www.researchgate.net/publication/242650731_Malo_kingi_A_new_species_of_Irukandji_jellyfish_Cnidaria_Cubozoa_Carybdeida_possibly_lethal_to_humans_from_Queensland_Australia

another source

"Tamoyidae is a family of box jellyfish within class Cubozoa. It contains only one genus Tamoya.[1] Recently discovered genus Malo was also associated to this family.[2]"

from another site, https://ipfs.io/ipfs/QmXoypizjW3WknFiJnKLwHCnL72vedxjQkDDP1mXWo6uco/wiki/Tamoyidae.html#cite_note-1