Alathyria tamarensis (Etheridge, 1881) † (basis of record)
Nippononaia (Mekongiconcha) T. Kobayashi, 1968 † accepted as Trigonioides (Mekongiconcha) T. Kobayashi, 1968 † represented as Trigonioides T. Kobayashi & K. Suzuki, 1936 † (original description)
Nippononaia (Mekongiconcha) robusta T. Kobayashi, 1968 † accepted as Trigonioides (Diversitrigonioides) diversicostatus (Hoffet, 1937) † accepted as Diversitrigonioides diversicostatus (Hoffet, 1937) † (original description)
Nippononaia (Mekongiconcha) subquadrata T. Kobayashi, 1968 † accepted as Trigonioides (Mekongiconcha) subquadratus (T. Kobayashi, 1968) † represented as Trigonioides subquadratus (T. Kobayashi, 1968) † (original description)
Nippononaia carinata T. Kobayashi, 1968 † (original description)
Nippononaia mekongensis T. Kobayashi, 1963 † accepted as Trigonioides (Diversitrigonioides) diversicostatus (Hoffet, 1937) † accepted as Diversitrigonioides diversicostatus (Hoffet, 1937) † (basis of record)
Plicatotrigonioides hoffeti T. Kobayashi, 1968 † accepted as Pseudohyrioides hoffeti (T. Kobayashi, 1968) † (original description)
Plicatotrigonioides subovalis T. Kobayashi, 1968 † accepted as Pseudohyria (Pseudohyria) subovalis (T. Kobayashi, 1968) † represented as Pseudohyria subovalis (T. Kobayashi, 1968) † (original description)
Plicatounio naktongensis manchuricus Yabe & Hayasi, 1937 † accepted as Plicatounio manchuricus Yabe & Hayasi, 1937 † (basis of record)
Plicatounio namphungensis T. Kobayashi, 1968 † (original description)
Pseudohyriidae T. Kobayashi, 1968 † (original description)
Unio sampanoides T. Kobayashi, 1968 † accepted as Nakamuranaia (Yunnanoconcha) sampanoides (T. Kobayashi, 1968) † represented as Nakamuranaia sampanoides (T. Kobayashi, 1968) † (original description)