Order

Hydroida Johnston, 1836

List of species

1. Mesokylix hydra Eisenack, 1935

Luokittelu

Organism group	Biota
Kingdom	Animalia
Phylum	Cnidaria
Class	Hydrozoa
Order	Hydroida
Suborder	Athecata
	Thecapora
Genus	Mesokylix