Lyrodiscus ihli (FOSSIL) (B. Klika, 1891 †)
Schistophallus imperator F. Riedel, 1966
Retinelloides incerta (J.P.R. Draparnaud, 1805)
Retinella indentata (T. Say, 1823)
Aegopinella inermis L. Forcart, 1959
Mesomphix inornatus T. Say, 1821
Zonites insignis G. Nägele, 1903
Schistophallus investigatus (A. Riedel, 1993)
Zonites invitus F. Riedel & M. Mylonas,1995
Allaegopis ionicus (F. Käufel, 1930)
Retinella iphigeniae W.A. Lindholm, 1926
Aegopis italicus W. Kobelt, 1876
Retinella jetschini M. von Kimakowicz, 1890
Lyrodiscus jourdani (FOSSIL) (Michaud, 1862) †
Glyphyalinia junaluskana W.J. Clench & G.S. Banks,1932
Mesomphix kapnodes (W.G. Binney, 1857)
Allaegopis kerketianus F. Riedel, 1993
Zonites kobelti O. Böttger, 1898
Gyralina korabensis (F. Riedel, 1970)
Zonites labiosus C.A. Westerlund, 1893
Paravitrea lacteodens H.A. Pilsbry, 1903
Paravitrea lamellidens H.A. Pilsbry, 1898
Nesovitrea lanaiensis (E.R. Sykes, 1897)
Retinella lantzi W.A. Lindholm, 1913
Paravitrea lapilla L.R. Hubricht, 1965
Glyphyalinia latebricola L.R. Hubricht, 1968
Mesomphix latior H.A. Pilsbry, 1900
Vitrinozonites latissimus (J. Lewis, 1875)
Lyrodiscus lenis (R.J. Shuttleworth, 1852)
Glyphyalinia lewisiana W.F. Clapp, 1908
Discoxychilus lindholmi F. Riedel, 1966
Zonites lomonti J.W. Brazier, 1876
Omphalina lucubratus (T. Say, 1829)
Gyralina lunikensis Z. Fehér & Z. Eröss, 2009
Glyphyalinia luticola L.R. Hubricht, 1966