Neohelix fuscolabris (H.A. Pilsbry, 1903)
Cryptomastix germana (A.A. Gould, 1851)
Millerelix gracilis (L.R. Hubricht, 1961)
Praticolella griseola (L. Pfeiffer, 1841)
Vespericola haplus (S.S. Berry, 1933)
Cryptomastix harfordiana (W.G. Binney, 1886)
Ashmunella harrisi A. Metcalf & R. Smartt,1977
Daedalochila hausmani B.D. Jackson, 1948
Ashmunella hebardi H.A. Pilsbry & E.G. Vanatta,1923
Triodopsis henriettae (W.G. Mazÿck, 1877)
Mesodon herberti (B. Walker, 1928)
Linisia hertleini F. Haas, 1961
Linisia hindsi (L. Pfeiffer, 1845)
Daedalochila hippocrepis L. Pfeiffer, 1848
Stenotrema hirsutus (T. Say, 1817)
Hochbergellus hirsutus B. Roth & W.B. Miller,1992
Triodopsis hopetonensis R.J. Shuttleworth, 1852
Euchemotrema hubrichti H.A. Pilsbry, 1940
Upsilodon idiogenes H.A. Pilsbry, 1956
Linisia implicata (E.C. Von Martens, 1865)
Patera indianorum H.A. Pilsbry, 1899
Inflectarius inflectus (T. Say, 1821)
Ashmunella intricata H.A. Pilsbry, 1948
Millerelix jacksoni (T.B. Bland, 1866)
Praticolella jejuna (T. Say, 1821)
Fumonelix jonesiana (S. Archer, 1938)
Ashmunella juarazensis H.A. Pilsbry, 1948
Triodopsis juxtidens H.A. Pilsbry, 1894
Inflectarius kalmianus L.R. Hubricht, 1965
Vespericola karakorum R.R. Talmadge, 1962
Patera kiowaensis C.T. Simpson, 1888
Vespericola klamathicus B. Roth & W.B. Miller,1995
Ashmunella kochii W.F. Clapp, 1908
Stenotrema labrosum T.B. Bland, 1862
Patera laevior H.A. Pilsbry, 1940