Sinumelon remissum Iredale, 1937
Sinumelon schevilli (Clench & Archer, 1938)
Sinumelon subfodinale Iredale, 1938
Sinumelon tarcoolanum Solem, 1997
Sinumelon wilpenensis (Tate, 1894)
Sphaerospira blomfieldi (Cox, 1864)
Sphaerospira fraseri (Griffith & Pidgeon, 1833)
Sphaerospira informis (Mousson, 1869)
Sphaerospira oconnellensis (Cox, 1871)
Sphaerospira rawnesleyi (Cox, 1873)
Sphaerospira rockhamptonensis (Cox, 1873)
Sphaerospira sidneyi (Iredale, 1933)
Sphaerospira sp. 239391
Spurlinga sp. 275320
Spurlingia gemma Iredale, 1937
Spurlingia monticola (Clench & Archer, 1938)
Spurlingia portus Iredale, 1937
Spurlingia praehadra (Odhner, 1917)
Spurlingia tinarooensis Iredale, 1937
Stanisicia macintyrensis Clark, 2009
Stegodera angusticollis (E. von Martens, 1875)
Stenogyropsis potanini (Möllendorff, 1899)
Stenogyropsis sp. 357186
Steorra bala (Brazier, 1878)
Steorra jimfergusoni Stanisic & Potter, 2010
Steorra mourilyani (Brazier, 1875)
Steorra mulgravensis (Brazier, 1872)
Steorra rawnsleyi (Cox, 1873)
Steorra sp. 275292
Steorra tomsoni (Brazier, 1876)
Steorra worsfoldi Stanisic, 2010
Stilpnodiscus entochilus Möllendorff, 1899
Stilpnodiscus moellendorffi M. Wu, 2001
Stilpnodiscus stotzneri Blume, 1925
Stilpnodiscus vernicinus Möllendorff, 1899
Stilpnodiscus yeni M. Wu, 2001
Strepsitaurus cardabius Solem, 1985†
Strepsitaurus ningaloo Solem, 1997
Strepsitaurus rugus (Cotton, 1953)
Strepsitaurus williami Solem, 1997
Sulcobasis consisa cumingii (Pfeiffer, 1842)
Sulcobasis minnigerodei Strubell, 1895
Sulcobasis sp. 240467
Tatemelon herberti (Iredale, 1937)
Temporema sardalabiata (Cox, 1871)
Temporena juliafoxae Stanisic, 2010
Temporena whartoni (Cox, 1871)
Thelidomus asper (Ferussac, 1821)
Thelidomus cognata (Ferussac, 1821)
Thersites bartschi paulensis Marshall, 1927
Thersites cf. bipartidus (Ferussac, 1822)
Thersites croftoni (Cox, 1873)
Thersites gratiosa (Cox, 1871)
Thersites mazee (Brazier, 1878)
Thersites mitchellae (J. C. Cox, 1864)
Thersites mitifica (Iredale, 1933)
Thersites mortenseni (Iredale, 1929)
Thersites palmensis (Brazier, 1876)
Thersites rainbirdi (Cox, 1870)
Thersites richmondianus (Reeve, 1852)
Thersites sp. 64408
Tolgachloritis campbelli (Iredale, 1938)
Tolgachloritis jacksoni (Hedley, 1912)
Torresitrachia alenae Willan, Kohler, Kessner & Braby, 2009
Torresitrachia cuttacutta Willan, Kohler, Kessner & Braby, 2009
Torresitrachia darwini Willan, Kohler, Kessner & Braby, 2009
Torresitrachia stipata Iredale, 1938
Torresitrachia torresiana (Humbron & Jacquinot, 1841)
Torresitrachia wallacei Willan, Kohler, Kessner & Braby, 2009
Trachia crassicostata (Benson, 1836)
Trachia fallaciosa (A. Férussac, 1832)
Trachia norodomiana (Morelet, 1883)
Trachiopsis mucosa (Cox, 1868)
Trachiopsis strangulata (Hombron & Jaquinot, 1841)
Trachygenia praecursis (Hedley, 1912)
Trachystyla cryptica (Broderip, 1841)
Trachystyla cryptica cretata (Broderip, 1841)
Trachystyla cryptica latitans (Broderip, 1841)
Traumatophora fraterminor (Gredler, 1884)
Traumatophora triscalpta (E. von Martens, 1875)
Trichelix biscalpta (Heude, 1885)
Trichelix hiraseana (Pilsbry, 1905)
Trichelix tokunoensis (Pilsbry & Y. Hirase, 1905)
Trichelix xiaoxiang R.-X. Lin & L.-W. Lin, 2022
Tricheulota sanziana (Hombron & Jacquinot, 1841)
Tricheulota zodiacus (Ferussac, 1821)
Tricheulota zodiacus tuba Albers, 1854
Trichocathaica amphidroma (Moellendorff, 1899)
