Scolex
Animalia | Platyhelminthes | Cestoda | Tetraphyllidea | Tetraphyllidea | Scolex
Scolex
Biota | Animalia | Platyhelminthes | Rhabditophora | Neodermata | Cestoda | Eucestoda | Tetraphyllidea | Tetraphyllidea incertae sedis | Scolex
|  | Minot, 1876 | Ehlers, 1985 | Ehlers, 1985 |  |  |  |  | Müller, 1787