Adamsiella jarvisi J. Henderson, 1901
Chondropoma jaulense C. de la Torre & P. Bartsch,1938
Tudora jayana (C.B. Adams, 1849)
Subannularia jeannereti (L. Pfeiffer, 1861)
Troschelvindex jiguanensis (L. Pfeiffer, 1861)
Eutudora jimenoi (R. Arango in L. Pfeiffer,1864)
Leonia jolyi (P.M. Pallary, 1908)
Leonia jolyi boiteli (P.M. Pallary, 1927)
Cyclotopsis josephinae (K.C. Emberton, 2003)
Pomatias jousseaumianum J.F. Mabille, 1886
Parachondria joyeuse Watters, 2016
Opisthosiphon judasense C. de la Torre& J. Henderson, 1920
Tropidophora juliana E. Fischer-Piette& J. Bedoucha, 1965
Chondropoma julieni L. Pfeiffer, 1866
Palaeocyclotus kuehschelmi (FOSSIL) M. Harzhauser& T.A. Neubauer, 2016 †
Chondropomium kusteri (L. Pfeiffer, 1851)
Licina labeo (O.F. Müller, 1774)
Subannularia lacheri (L. Pfeiffer, 1861)
Chondropoma laetum (Gutiérrez in F. Poey,1858)
Pomatias laevigata (P.B. Webb & S. Berthelot,1833)
Procyclotopsis laevigatus (FOSSIL) (F. Sandberger, 1870) †
Wrightudora laevistria C.G. Aguayo& M.I. Sánchez Roig, 1949
Lagopoma lagopoma P. Bartsch, 1946
Cubadamsiella lamellata L.O. Alcalde, 1945
Opisthocoelicum lamellicostatum (C. de la Torre& J. Henderson, 1921)
Opisthosiphon lamellosum C. de la Torre & P. Bartsch,1941
Pomatias lanzarotensis (T.V. Wollaston, 1878)
Choanopoma largillierti (L. Pfeiffer, 1842)
Cyclostoma lartetii (FOSSIL) Noulet, 1851 †
Chondropometes latilabre (A.V.M.D. D'Orbigny,1842)
Chondropoma latum (J. Gundlachin L. Pfeiffer, 1858)
Chondropoma lembeyi C. de la Torre & P. Bartsch,1938
Cubadamsiella leoni (C. de la Torre& P. Bartsch, 1941)
Chondropoma leoni C. de la Torre & P. Bartsch,1938
Tropidophora lienardi (P.M.A. Morelet, 1877)