The Ulmaridae are a family of jellyfish. Genera Formerly, the genus Phacellophora was also included in this family, but is now placed in the family Phacellophoridae. Aurelia (includes the moon jelly) Aurosa Deepstaria Diplulmaris Discomedusa Floresca Parumbrosa Poralia Stellamedusa Sthenonia Stygiomedusa (the giant phantom jelly) Tiburonia Ulmaris References Semaeostomeae Cnidarian families