Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Coelenterata
Cnidaria (Cnidarians)
Medusozoa
Hydrozoa
Trachylinae
Actinulida
Otohydridae
Children (2 direct children, 2 direct and indirect children):
Otohydra vagans
Otohydra tremulans