Thais nodosa meretricula Roding, 1798 | 
Thais planospira (Lamarck, 1822) | 
Thais pseudodiadema Yokoyama, 1928 |
Thais rufotincta Tan & Sigurdsson, 1996 | 
Thais speciosa (Valenciennes, 1832) | 
Thais tricolorata Bozzetti, 2010 |
Thais virgata (Dillwyn, 1817) | 
Thaisella blanfordi (Melvill, 1893) | 
Thaisella callifera (Lamarck, 1822) |
Thaisella coronata (Lamarck, 1816) | 
Thaisella coronata (trinitatensis Guppy, 1869) | 
Thaisella forbesii (Dunker, 1853) |
Thaisella guatemalteca Simone, 2017 | 
Thaisella kiosquiformis (Duclos, 1832) | 
Timbellus havanensis (E. H. Vokes, 1970) |
Timbellus phaneus (Dall, 1889) | 
Timbellus richeri (Houart, 1987) | 
Timbellus vespertilio (Kira, 1959) |
Trachypollia aff. nodulosa (C.B.Adams, 1845) | 
Trachypollia cf. turricula (von Maltzan, 1884) | 
Trachypollia turricula (Maltzan, 1884) |
Tripterotyphis cf. triangularis (A. Adams, 1855) | 
Tripterotyphis colemani (Ponder, 1972) | 
Tripterotyphis norfolkensis (C.A.Fleming, 1962) |
Tripterotyphis sp. 73873 | 
Tripterotyphis triangularis (A. Adams, 1855) | 
Tritonalia cala (Pilsbry, 1897) |
Trochia cingulata (Linnaeus, 1771) | 
Tromina dispectata Dell, 1990 | 
Tromina simplex Powell, 1951 |
Trophon albolabratus Smith, 1875 | 
Trophon bahamondei McLean & Andrade, 1982 | 
Trophon brevispira von Martens, 1885 |
Trophon cf. plicatus (Lightfoot, 1786) | 
Trophon columbarioides Pastorino& Scarabino, 2008 | 
Trophon echinolamellosus Powell, 1951 |
Trophon fasciolarioides Pastorino & Scarabino, 2008 | 
Trophon geversianus (Pallas, 1774) | 
Trophon geversianus acordonada Castellanos, 1993 |
Trophon geversianus cancellada Castellanos, 1993 | 
Trophon geversianus lamellosa Castellanos, 1993 | 
Trophon geversianus varians Orbigny, 1891 |
Trophon gruveli Dautzenberg, 1910 | 
Trophon muricatus (Montagu, 1803) | 
Trophon muricatus bravicensis (Johnston, 1825) |
Trophon nucelliformis Oliver & Picken, 1984 | 
Trophon ohlini Strebel, 1905 | 
Trophon panamensis (Olsson, 1971) |
Trophon patagonicus (Orbigny, 1835) | 
Trophon pelseneeri E. A. Smith, 1915 | 
Trophon plicatus (Lightfoot, 1786) |
Trophon purdyae Houart, 1983 | 
Trophon shackletoni paucilamellatus Powell, 1951 | 
Trophonopsis kamchatkanus (Dall, 1902) |
Trophonopsis lasius (Dall, 1919) | 
Trophonopsis orpheus (Gould, 1849) | 
Trophonopsis tagularis Golikov & Gulbin, 1977 |
Trophonopsis tripherus (Dall, 1902) | 
Trophonopsis xestra (Dall, 1918) | 
Trophonopsis xestra nipponicus (Yokoyama, 1920) |
Trophonopsis ziczac Tiba, 1981 | 
Trossulasalpinx roseae Petuch, 1991� | 
Trubatsa patera Garrigues, 2021 |
Trubatsa virginiae (Houart, 1986) | 
Tylothais aculeata (Deshayes, 1844) | 
Tylothais savignyi (Deshayes, 1844) |
Typhina belcheri (Broderip, 1833) | 
Typhina cf. riosi Bersch & DAttillio, 1980 | 
Typhina clarki (Keen & G. B. Campbell, 1964) |
Typhina coronata (Broderip, 1833) | 
Typhina expansa (G. B. Sowerby II, 1874) | 
Typhina grandis (A. Adams, 1855) |
Typhina latipennis (Dall, 1919) | 
Typhina philippensis Watson, 1881 | 
Typhina puertoricensis (Warmke, 1964) |
Typhina riosi Bersch & DAttillio, 1980 | 
Typhina sp. 28920 | 
Typhinellus androyensis Bozzetti, 2007 |
Typhinellus horridus (Brocchi, 1814)� | 
Typhinellus labiatus (Cristofi & Jau, 1832) | 
Typhinellus occlusus (Garrard, 1963) |
Typhis aff. bullisi Gertmann, 1969 | 
Typhis bullisi Gertmann, 1969 | 
Typhis carolinensis Olsson & Petit, 1964� |
Typhis cf. clarki Keen & Campbell, 1964 | 
Typhis cf. floridanus Dall, 1889� | 
Typhis cf. imperialis Keen & Campbell, 1964 |
Typhis colemani (Ponder, 1972) | 
Typhis floridanus Dall, 1889� | 
Typhis rosadoi Houart, 1999 |
