Pyrgula lencoranica B.M. Logvinenko& Y.I. Starobogatov, 1968
Pseudopaludinella leneumicra (J.R. Bourguignat, 1876)
Schuettemmericia lenoiri (FOSSIL) (W.R. Schlickum, 1968 †)
Pyrgulopsis lentiglans R. Hershler, 1998
Micromelania leobersdorfensis (FOSSIL) Papp, 1953 †
Odontohydrobia leobersdorfensis (FOSSIL) (Papp, 1953 †)
Pseudamnicola leognanensis (FOSSIL) (A.E.M. Cossmann& M.A. Peyrot, 1918 †)
Hadziella leonorae E. Rolán, M. Pardo& T. Pardo, 2007
Pseudamnicola leontina A.V. Grossu, 1986
Pyrgulopsis leporina R. Hershler, 1998
Pseudamnicola leprevieri (P.M. Pallary, 1926)
Cincinnatia leptospira F.G. Thompson, 2000
Bythiospeum leruthi (C.R. Böttger, 1940)
Micromelania letochae (FOSSIL) (A. Fuchs, 1873 †)
Horatia letourneuxi J.R. Bourguignat, 1887
Pseudamnicola letourneuxiana (J.R. Bourguignat, 1862)
Marstonia letsoni (B. Walker, 1901)
Chondrobasis levantina (B. Arconada & M.A. Ramos,2000)
Orygoceras levis (FOSSIL) Gorjanovic-Kramberger,1890 †
Iraklimelania levis (FOSSIL) Willmann, 1981 †
Pyrgulopsis licina R. Hershler, H.P. Liu& C. Bradford, 2013
Avenionia ligustica F.L. Giusti & M. Bodon,1981
Tadzhikamnicola likharevi (Z.I. Izzatullaev, 1973)
Euxinipyrgula limanica (A.N. Golikov& Y.I. Starobogatov, 1966)
Pyrgulopsis limaria R. Hershler, 1998
Hydrobia limnicola (FOSSIL) (H. Rolle, 1860 †)
Pseudamnicola linae P. Glöer, S. Bouzid& H.D. Boeters, 2010
Euxinipyrgula lincta (K.O. Milaschewitsch,1908)
Pyrgulopsis lindae R. Hershler,H.X. Liu & al., 2016
Pyrgulopsis lindahlae Hershler, Liu, Forsythe, Hovingh& Wheeler, 2017
Turkmenamnicola lindholmi (V.I. Zhadin, 1952)
Hydrobia lineata G. Mandahl-Barth, 1973
Hydrobia lineata (FOSSIL) E. Jekelius, 1944 †
Micromelania lineolata (FOSSIL) Š. Brusina, 1892 †
Austropyrgus lippus A. Clark, W.B. Miller& W.F. Ponder, 2003