 Sinumelon gillensis Solem, 1993 |  Sinumelon kalgum Iredale, 1939 |  Sinumelon nullarboricum (Tate, 1879) |
 Sinumelon pedasum Iredale, 1937 |  Sinumelon perinflatum (Pfeiffer, 1864) |  Sinumelon pumilio Iredale, 1937 |
 Sinumelon remissum Iredale, 1937 |  Sinumelon schevilli (Clench & Archer, 1938) |  Sinumelon subfodinale Iredale, 1938 |
 Sinumelon tarcoolanum Solem, 1997 |  Sinumelon wilpenensis (Tate, 1894) |  Sphaerospira bernhardi (Iredale, 1933) |
 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 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 keppelensis (Iredale, 1937) |
 Thersites mazee (Brazier, 1878) |  Thersites mitifica (Iredale, 1933) |  Thersites mortenseni (Iredale, 1929) |
 Thersites palmensis (Brazier, 1876) |  Thersites rainbirdi (Cox, 1870) |  Thersites richmondianus (Reeve, 1852) |
 Thersites saxicola Iredale, 1937 |  Thersites sp. 64408 |  Thersites yeppoonensis (Beddome, 1897) |
 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 aff. fallaciosa (Ferussac, 1821) |
 Trachia crassicostata (Benson, 1836) |  Trachia fallaciosa (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 latitans (Sowerby, 1841) |
 Traumatophora triscalpta (E. von Martens, 1875) |  Trichelix biscalpta (Heude, 1885) |  Trichelix hiraseana (Pilsbry, 1905) |