Choanostoma secundum
Animalia | Platyhelminthes | Trematoda | Plagiorchiida | Opecoelidae | Choanostoma | Choanostoma secundum
Choanotrema secundum
Biota | Animalia | Platyhelminthes | Rhabditophora | Neodermata | Trematoda | Digenea | Plagiorchiida | Xiphidiata | Opecoeloidea | Opecoelidae | Hamacreadiinae | Choanotrema | Choanotrema secundum
|  | Minot, 1876 | Ehlers, 1985 | Ehlers, 1985 |  | Carus, 1863 | La Rue, 1957 | Olson, Cribb, Tkach, Bray & Littlewood, 2003 | Ozaki, 1925 | Ozaki, 1925 | Martin, Downie & Cribb, 2020 | Nitta & Tanaka, 2018 | (Durio & Manter, 1968) Nitta & Tanaka, 2018