Nucula striolata A. Adams, 1856
Nucula studeri (FOSSIL) d'Archaic, 1850 †
Nucula suahelica (K.H.J. Thiele& S.G.A. Jaeckel, 1931)
Nucula subcuneata (FOSSIL) d'Orbigny, 1849 †
Nucula subluxa R.N. Kilburn, 1999
Nucula submargaritacea (FOSSIL) M. Rouault, 1849 †
Nucula subovalis (FOSSIL) G.A. Goldfuss, 1837 †
Nucula subrecurva (FOSSIL) Phillips, 1829 †
Nucula subrotundata (FOSSIL) Morningstar, 1922 †
Nucula subtransversa (FOSSIL) P. Nyst, 1844 †
Nucula subtrigona (FOSSIL) Münster, 1841 †
Nucula sulcata H.G. Bronn, 1831
Nucula sultana K.H.J. Thiele& S.G.A. Jaeckel, 1931
Nucula surinamensis C.O. Van Regteren Altena,1968
Nucula tallahalaensis (FOSSIL) D.T. Dockery, 1982 †
Nucula tamatavica N.H. Odhner, 1943
Nucula taphria (FOSSIL) W.H. Dall, 1898 †
Nucula tatriana (FOSSIL) King, 1850 †
Nucula tenuisculpta (FOSSIL) W.M. Gabb, 1873 †
Nucula tenuistriata (FOSSIL) Sowerby, 1837 †
Nucula terminalis (FOSSIL) H.G. Bronn, 1831 †
Nucula tersior (FOSSIL) J. Marwick, 1929 †
Nucula thielei H.G. Schenck, 1939
Nucula tokyoensis M. Yokoyama, 1920
Nucula torresi E.A. Smith, 1885
Nucula totangiensis (J. Marwick, 1931)
Nucula townsendi (FOSSIL) (W.H. Dall †)
Nucula trigonica T.C. Lan & Y.C. Lee, 2001
Nucula trigonula (FOSSIL) Wood, 1840 †
Nucula tumidula A.W. Malm, 1861
Nucula turgens (FOSSIL) Wood, 1879 †
Nucula turgida A.A. Gould, 1846
Nucula variabilis (FOSSIL) Sowerby, 1825 †
Nucula vestigia (FOSSIL) J. Marwick, 1929 †
Nucula vicksburgensis (FOSSIL) T.A. Conrad, 1848 †