thetis Turton, 1932: synonym of Marginella piperata Hinds, 1844 Marginella thomensis Tomlin, 1919: synonym of Gibberula thomensis (Tomlin, 1919) Marginella tomlini Shackleford, 1916: synonym of Marginella bicatenata G. B. Sowerby III, 1914 Marginella torticula Dall, 1881: synonym of Prunum torticulum (Dall, 1881) Marginella trailli Reeve, 1865: synonym of Cryptospira trailli (Reeve, 1865) Marginella translucida G. B. Sowerby II, 1846: synonym of Austroginella translucida (G. B. Sowerby II, 1846) Marginella tricincta Hinds, 1844: synonym of Cryptospira tricincta (Hinds, 1844) Marginella tridentata Tate, 1878: synonym of Hydroginella tridentata (Tate, 1878) Marginella triticea Lamarck, 1822: synonym of Volvarina exilis (Gmelin, 1791) Marginella tryphenensis Powell, 1932: synonym of Mesoginella tryphenensis (Powell, 1932) Marginella turbinata G. B. Sowerby II, 1846: synonym of Mesoginella turbinata (G. B. Sowerby II, 1846) Marginella turbiniformis Bavay, 1917: synonym of Protoginella turbiniformis (Bavay, 1917) Marginella turgidula Locard & Caziot, 1900: synonym of Gibberula turgidula (Locard & Caziot, 1900) Marginella turtoni Bartsch, 1915: synonym of Hyalina lucida (Marrat, 1877) Marginella tyermani Marrat, 1876: synonym of Glabella tyermani (Marrat, 1876) Marginella undulata Deshayes, 1844: synonym of Cryptospira strigata (Dillwyn, 1817) Marginella unifasciata Turton, 1932: synonym of Marginella munda E. A. Smith, 1904 Marginella unilineata Jousseaume, 1875: synonym of Volvarina unilineata (Jousseaume, 1875) Marginella vailei Powell, 1932: synonym of Mesoginella vailei (Powell, 1932) Marginella valida Watson, 1886: synonym of Alaginella valida (Watson, 1886) Marginella veliei Pilsbry, 1896: synonym of Prunum succineum (Conrad, 1846) Marginella ventricosa Fischer von Waldheim, 1807: synonym of Cryptospira ventricosa (Fischer von Waldheim, 1807) Marginella ventricosa Hedley, 1903: synonym of Cryptospira ventricosa (Fischer von Waldheim, 1807) Marginella vercoi May, 1911: synonym of Alaginella vercoi (May, 1911) Marginella vermiculata Redfield, 1851: synonym of Cryptospira ventricosa (Fischer von Waldheim, 1807) Marginella victoriae Gatliff & Gabriel, 1908: synonym of Mesoginella victoriae (Gatliff & Gabriel, 1908) Marginella vignali Dautzenberg & Fischer, 1896: synonym of Gibberula vignali (Dautzenberg & H. Fischer, 1896) Marginella vimonti Jousseaume, 1875: synonym of Glabella denticulata (Link, 1807) Marginella vincentiana Cotton, 1944: synonym of Hydroginella vincentiana (Cotton, 1944) Marginella virginea Jousseaume, 1875: synonym of Prunum apicinum (Menke, 1828) Marginella virginiana Verrill, 1885: synonym of Dentimargo smithii (A. E. Verrill, 1885) † Marginella virginiana (Conrad, 1868): synonym of † Prunum virginianum Conrad, 1868 Marginella vittata Reeve, 1866: synonym of Marginella ornata Redfield, 1870 Marginella vittata Hutton, 1873: synonym of Persicula cingulata (Dillwyn, 1817) Marginella volutiformis Reeve, 1865: synonym of Austroginella translucida (G. B. Sowerby II, 1846) Marginella walkeri E. A. Smith, 1899: