Related how?

Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Spiralia (Spiralians)
Lophotrochozoa
Platyzoa
Platyhelminthes (Flatworms)
Turbellaria

Catenulida (2941748)

Children (5 direct children, 200 direct and indirect children):

Stenostomidae (tree size 142)

Catenulidae (tree size 30)

Retronectidae (tree size 16)

Tyrrheniellidae (tree size 1)

Chordariidae (tree size 6)