Polystoma
Animalia | Platyhelminthes | Monogenea | Polystomatidea | Polystomatidae | Polystoma
Polystoma
Biota | Animalia | Platyhelminthes | Rhabditophora | Neodermata | Monogenea | Polyopisthocotylea | Polystomatidea | Polystomatidae | Polystomatinae | Polystoma
|  | Minot, 1876 | Ehlers, 1985 | Ehlers, 1985 | Van Beneden, 1858 |  | Lebedev, 1988 | Gamble, 1896 | Gamble, 1896 | Zeder, 1800