Eremarionta immaculata G. Willett, 1937 California, Riverside County
Sonorella imperatrix H.A. Pilsbry, 1939 Arizona, Pima County
Sonorella imperialis H.A. Pilsbry& J.H. Ferriss, 1923 USA
Greggelix indigena (J.F. Mabille, 1895) Mexico, Baja California Sur, La Paz
Eremarionta indioensis (L.G. Yates, 1890) California, Riverside County
Helminthoglypta inglesi S.S. Berry, 1938 California, Kern County
Herpeteros inglesiana (S.S. Berry, 1928) Mexico18,2 mm
Sonorella insignis H.A. Pilsbry& J.H. Ferriss, 1919 Arizona, Cochise County
Helminthoglypta isabella S.S. Berry, 1938 California, Kern County
Helminthoglypta jaegeri S.S. Berry, 1928 California, San Bernardino
Helminthoglypta liodoma S.S. Berry, 1938
Greggelix loehrii (W.M. Gabb, 1867) Mexico, Baja California Sur, La Paz
Rothelix lowei (P. Bartsch, 1918)
Sonorella macrophallus H.L. Fairbanks& D.M. Reeder, 1980 Arizona, Graham County
Sonorella madreana E. Naranjo-Garcia, 1989 Mexico, Sonora
Sonorella magdalenensis (R.E.C. Stearns, 1890) USA
Helminthoglypta mailliardi H.A. Pilsbry, 1927
Sonorella marmorarius H.A. Pilsbry& J.H. Ferriss, 1919
Micrarionta mccoiana G. Willett, 1935
Sonorella meadi W.B. Miller, 1966 Arizona, Pima County
Sonorelix melanopylon (S.S. Berry, 1930) California14 mm
Herpeteros merrilli (P. Bartsch, 1904) Baja California, San Felipe
Sonorella metcalfi W.B. Miller, 1976 Texas, El Paso County
Sonorella micra H.A. Pilsbry& J.H. Ferriss, 1910 Arizona, Cochise County
Helminthoglypta micrometalleoides W.B. Miller, 1970 California, Kern County
Sonorelix micrometalleus (S.S. Berry, 1930) California7 mm
Sonorella micromphala H.A. Pilsbry, 1939 California11,1 mm
Eremarionta millepalmarum S.S. Berry, 1930 California, Riverside County
Sonorella milleri C.C. Christensen& D.M. Reeder, 1981 California, San Diego County
Helminthoglypta misiona R. Chase, 1937 Baja California, San Felipe
Helminthoglypta mohaveana S.S. Berry, 1927 California, San Bernardino
Helminthoglypta montezuma D.M. Reeder& W.B. Miller, 1986 California, San Diego County
Sonorella montezuma H.A. Pilsbry& J.H. Ferriss, 1919 Arizona, Santa Cruz County
Sonorella mormonorum H.A. Pilsbry, 1948
Eremarionta morongoana S.S. Berry, 1929 California, Riverside County