Therasiella tamora (F.W. Hutton, 1883) New Zealand, Auckland3,7 mm
Cavellia tapirina (F.W. Hutton, 1883) New Zealand, North Island
Allocharopa tarravillensis (C.J. Gabriel, 1930) Australia, Tarraville
Pernagera tasmaniae (J.C. Cox, 1868) Tasmania
Allodiscus tataensis (F.M. Climo, 1971) New Zealand
Allodiscus tawhiti B.A. Marshall& G.M. Barker, 2008 New Zealand
Sinployea tenuicostata (A. Garrett, 1872) Cook Islands
Flammulina tepakiensis N.W. Gardner, 1977 New Zealand, North Island
Amphidoxa tessellata (J.K. Megerle Von Mühlfeld, 1839) Chile, Juan Fernandez Island
Allodiscus tessellatus A.W.B. Powell, 1941 New Zealand, Plenty Bay
Therasia thaisa F.W. Hutton, 1883 New Zealand, Marlborough
Maafu thaumasius G.A. Solem, 1983 Fiji, Vanua Levu
Phenacohelix tholoides (H.H. Suter, 1907) Indonesia, Sumatra
Sinployea titikaveka F.J. Brook, 2010
Chaureopa titirangiensis (H.H. Suter, 1896) New Zealand
Roimontis tolotomensis G.A. Solem, 1983
Allodiscus tongariro B.A. Marshall& G.M. Barker, 2008 New Zealand
Vatusila tongensis G.A. Solem, 1983 Tonga
Pseudegestula transenna (H.H. Suter, 1904) New Zealand
Therasia traversi E.A. Smith, 1884 New Zealand
Fectola trilamellata F.M. Climo, 1978 New Zealand
Climocella triticum J.F. Goulstone& P.C. Mayhill, 1998 New Zealand, North Island
Trukcharopa trukana G.A. Solem, 1983 Micronesia
Allodiscus tullia (J.E. Gray, 1850) New Zealand, South Island
Allodiscus tullia albinus H.H. Suter, 1913 New Zealand, South Island
Pilsbrycharopa tumida (N.H. Odhner, 1917) Western Australia, Kimberley
Jokajdon tumidulus (O.F. von Möllendorff,1900) Micronesia
Sinployea tupapa F.J. Brook, 2010
Allodiscus turbotti A.W.B. Powell, 1948 New Zealand, Three Kings Islands
Paryphantopsis ubwamensis J. Slapcinsky, 2005 Papua New Guinea
Semperdon uncatus G.A. Solem, 1983
Allodiscus undulatus B.A. Marshall& G.M. Barker, 2008 New Zealand
Fectola unidentata F.M. Climo, 1978 New Zealand
Ptychodon unilamellatus W.K. Weyrauch, 1965
Allodiscus urquharti H.H. Suter, 1894 New Zealand, Waikaremoana