Hydrozoa
Synonyms
Hydrozoan
Hydrozoans
Hydrozoas
Liriope tetraphylla
Liriope tetraphyllas
Man-of-War, Portuguese
Man-of-Wars, Portuguese
Physalia
Physalia physali
Physalia physalis
Physalias
Portuguese Man of War
Portuguese Man-of-War
Portuguese Man-of-Wars
physali, Physalia
tetraphyllas, Liriope
A class in the phylum CNIDARIA which alternates between polyp and medusa forms during their life cycle. There are over 2700 species in five orders.