Asteracmea roseoradiata (J.C. Verco, 1912)
Lottia rothi (D.R. Lindberg& J.H. McLean, 1981)
Patelloida rugosa J.R.C. Quoy & J.P. Gaimard,1834
Patelloida ryukyuensis T. Nakano & T. Ozawa,2005
Patelloida saccharina (C. Linnaeus, 1758)
Patelloida saccharina lanx (L.A. Reeve, 1855)
Patelloida saccharinoides T. Habe & S. Kosuge, 1966
Lottia scabra (A.A. Gould, 1846)
Tectura scabrilirata G.F. Angas, 1865
Notoacmea scapha (H.H. Suter, 1907)
Nipponacmea schrenckii (C.E. Lischke, 1868)
Notoacmea scopulina W.R.B. Oliver, 1926
Scurria scurra (R.P. Lesson, 1830)
Lottia scutum (J. Rathke, 1833)
Patelloida signata (H.A. Pilsbry, 1901)
Scurria silvana (Ramirez-Bohme, 1974)
Lottia smithi D.R. Lindberg & J.H. McLean,1981
Patelloida squamosa J.R.C. Quoy & J.P. Gaimard,1834
Lottia stanfordiana (S.S. Berry, 1957)
Scurria stipulata (L.A. Reeve, 1855)
Asteracmea stowae (J.C. Verco, 1906)
Patelloida striata (J.R.C. Quoy& J.P. Gaimard, 1834)
Lottia strigatella (P.P. Carpenter, 1864)
Lottia strongiana (L.G. Hertlein, 1958)
Notoacmea sturnus (J.B. Hombron& C.H. Jacquinot, 1841)
Notoacmea subantarctica W.R.B. Oliver, 1926
Lottia subrotundata (P.P. Carpenter, 1865)
Lottia subrugosa (A.V.M.D. D'Orbigny,1846)
Notoacmea subtilis (H.H. Suter, 1907)
Asteracmea suteri (T. Iredale, 1915)
Scurria suttonensis (FOSSIL) (Tawney) †
Tectura taurinensis (FOSSIL) F. Sacco, 1897 †
Tectura tenera (C.B. Adams, 1845)
Lottia tenuisculptata T. Sasaki & T.A. Okutani,1994
Tectura tenuistriata (FOSSIL) (Seeley) †