Newcombia sulcata L. Pfeiffer, 1857
Achatinella swiftii W. Newcomb
Achatinella swiftii chromatacme H.A. Pilsbry & C.M. Cooke,1914
Tornatellaria sykesii C.M. Cooke & H.A. Pilsbry,1916
Achatinella taeniolata L. Pfeiffer, 1846
Achatinella taeniolata rubiginosa W. Newcomb, 1853
Partulina talpina J.W. Mighels, 1856
Auriculella tantalus (H.A. Pilsbry & C.M. Cooke,1915)
Partulina tappaniana (C.B. Adams, 1851)
Auriculella tenella C.M.F. Ancey, 1889
Auriculella tenuis E.A. Smith, 1873
Antonella tenuis C.M. Cooke & Y. Kondo,1960
Partulina terebra (W. Newcomb, 1854)
Tornatellides terebra (C.M.F. Ancey, 1903)
Taraia terebriformis C.M. Cooke & Y. Kondo,1960
Elasmias terrestris (J.W. Brazier, 1876)
Partulina tessellata (W. Newcomb, 1853)
Achatinella thaanumi H.A. Pilsbry & C.M. Cooke,1914
Tornatellaria thaanumi C.M. Cooke & H.A. Pilsbry,1915
Partulina thaanumiana H.A. Pilsbry, 1913
Partulina theodorei D.D. Baldwin, 1895
Perdicella thwingi H.A. Pilsbry & C.M. Cooke,1914
Antonella trochlearis (L. Pfeiffer, 1842)
Antonella trochlearis radicula C.M. Cooke & Y. Kondo,1960
Tornatellaria trochoides (E.R. Sykes, 1900)
Fernandezia tryoni H.A. Pilsbry, 1911
Tornatellides tryoni H.A. Pilsbry & C.M. Cooke,1915
Achatinella turgida W. Newcomb, 1853
Auriculella turritella C.M. Cooke, 1915
Strobilus turritus H.E. Anton, 1839
Strobilus turritus basalis C.M. Cooke & Y. Kondo,1960
Atea uahukana H.A. Pilsbry & C.M. Cooke,1933
Tornatellaria umbilicata (C.M.F. Ancey, 1889)
Auriculella uniplicata W.H. Pease, 1868
Partulina ustulata Guick, 1856