Related how?

Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Coelenterata
Cnidaria (Cnidarians)
Medusozoa
Hydrozoa
Hydroidolina (Hydroid subclass)
Anthoathecata
Capitata

Acaulidae (338193)

Children (3 direct children, 8 direct and indirect children):

Acaulis (tree size 2)

Acauloides (tree size 2)

Cryptohydra (tree size 1)