Diplommatina tosanella abei J.T. Kuroda, 1980 Japan, Tokushima2,7 mm
Palaina trachelostropha O.F. von Möllendorff,1890 Philippines, Cebu
Plectostoma transequatorialis (J.J. Vermeulen, 1995) Indonesia, Kalimantan2,7 mm
Opisthostoma trapezium W.S.S. Van Benthem-Jutting, 1952 Malaysia, Perak
Diplommatina triangula T.C. Yen, 1939 China, Yunnan3,2 mm
Opisthostoma tridens J.J. Vermeulen, 1991 Borneo, Sarawak
Plectostoma tuba (J.J. Vermeulen, 1994) Borneo, Sarawak
Adelopoma tucma A. Doering, 1884 Argentina, Tucuman3 mm
Diplommatina tumida H.H. Godwin-Austen, 1870 India, Manipur
Arinia turgida J.J. Vermeulen, 1996 Malaysia, Borneo
Plectostoma turriforme (W.S.S. Van Benthem-Jutting, 1952) Malaysia4 mm
Diplommatina turris H.A. Pilsbry, 1901 Ryukyu Islands
Diplommatina turris chineni H. Minato, 1981 Japan, Tokara Islands
Diplommatina tylocheilos J.J. Vermeulen, T.S. Liew& M. Schilthuizen, 2015
Diplommatina tyosenica J.T. Kuroda& M. Miyanaga, 1939 China, Jiangxi province, Jiujiang4 mm
Diplommatina ujiinsularis H. Minato, 1982 Japan, Kagoshima
Diplommatina ultima H.A. Pilsbry & Y. Hirase,1909 Japan
Plectostoma umbilicatum (W.S.S. Van Benthem-Jutting, 1952) Malaysia, Pahang
Diplommatina umpangensis S. Panha, 1997 Thailand, Chantaburi2,9 mm
Diplommatina unicrenata H.H. Godwin-Austen, 1892 India, Nagaland
Diplommatina uozumi H. Minato, 1976 Okinawa
Diplommatina uzenensis H.A. Pilsbry, 1900 Japan, Akita3 mm
Diplommatina uzenensis cassa H.A. Pilsbry, 1901 Japan, Hyogo
Arinia valkenburgi J.J. Vermeulen, 1996 Malaysia, Borneo
Diplommatina ventricosa H.A. Pilsbry & Y. Hirase,1904 Okinawa
Diplommatina ventriculus O.F. von Möllendorff,1891 Indonesia, Sumatra2,2 mm
Diplommatina ventrosula A. Zilch, 1953 Philippines, Bohol Island
Opisthostoma vermiculum R. Clements& J.J. Vermeulen, 2008 Malaysia, Perak
Diplommatina vespa H.A. Pilsbry & Y. Hirase,1904 Ryukyu Islands3,9 mm
Plectostoma wallacei (C.M.F. Ancey, 1887) Indonesia, Kalimantan2,8 mm
Plectostoma wallacei busauense (E.A. Smith, 1893) Borneo, Sarawak
Plectostoma wallacei teinostoma (J.J. Vermeulen, 1994)
Palaina waterhousei T. Iredale, 1944 Australia, Lord Howe Island
Diplommatina welzeni J.J. Vermeulen, 1993 Malaysia, Borneo
Diplommatina whiteheadi E.A. Smith, 1898 Malaysia, Borneo