Animalia | Platyhelminthes | Rhabditophora | Trematoda | Azygiidae | Azygia
Biota | Animalia | Platyhelminthes | Rhabditophora | Neodermata | Trematoda | Digenea | Plagiorchiida | Hemiurata | Azygioidea | Azygiidae | Azygiinae | Azygia | Azygia angusticauda
|  | Minot, 1876 | Ehlers, 1985 | Ehlers, 1985 |  | Carus, 1863 | La Rue, 1957 | Skrjabin & Guschanskaja, 1954 | Lühe, 1909 | Lühe, 1909 | Lühe, 1909 | Looss, 1899 | (Stafford, 1904) Manter, 1926