Sonorelix borrogoensis ora (G. Willett, 1929) California16 mm
Sonorella bowiensis H.A. Pilsbry, 1905 USA, Arizona16,5 mm
Sonorella bradshaveana W.B. Miller, 1984 Arizona, Yavapai County
Polymita brocheri Gutiérrez in L. Pfeiffer,1864 Cuba
Polymita brocheri cuestana C. de la Torre, 1950 Cuba20,54 mm
Polymita brocheri ovandoi C. de la Torre, 1950 Cuba23,9 mm
Eremarionta brunnea G. Willett, 1935 California, Chuckwalla Spring
Sonorella burgessi E. Naranjo-Garcia, 1988 Mexico19,2 mm
Sonorella caerulifluminis H.A. Pilsbry& J.H. Ferriss, 1919 USA, Arizona24,7 mm
Helminthoglypta californiensis (H.C. Lea, 1838) California
Helminthoglypta callistoderma H.A. Pilsbry, 1917 California, Kern County
Sonorella cananea E. Naranjo-Garcia, 1988 Mexico, Sonora
Micrarionta canescens (A. Adams& L.A. Reeve, 1848 or, 1850)
Helminthoglypta carpenteri (W. Newcomb, 1861) California, Kern County
Helminthoglypta caruthersi G. Willett, 1934 California, Kern County
Sonorella cayetanensis H.A. Pilsbry& J.H. Ferriss, 1919
Herpeteros chacei (G. Willett, 1940) Baja California, San Felipe
Micrarionta chocolata G. Willett, 1935
Sonorella christenseni H.L. Fairbanks& D.M. Reeder, 1980 Arizona, Graham County
Micrarionta chuckwallana G. Willett, 1929
Sonorella clappi (H.A. Pilsbry& J.H. Ferriss, 1915) USA, Arizona16 mm
Helminthoglypta coelata P. Bartsch, 1916 California, San Diego County
Sonorella coloradoensis (R.E.C. Stearns, 1890) USA, Colorado14,6 mm
Sonorella coltoniana H.A. Pilsbry, 1939 USA, Arizona, Walnut Canyon18,4 mm
Sonorella compar H.A. Pilsbry, 1919 USA, Arizona, Oak creek22,6 mm
Helminthoglypta concolor B. Roth & F.G. Hochberg,1988 California, Kern County
Helminthoglypta contracostae H.A. Pilsbry, 1895 California, Contra Costa County
Cryptostrakon corcovadensis M.G. Cuezzo, 1997 Costa Rica
Helminthoglypta crotalina S.S. Berry, 1928
Helminthoglypta cuyama G.D. Hanna & A.G. Smith,1937 California, Santa Barbara
Rothelix cuyamacensis (H.A. Pilsbry, 1895) California, San Diego County
Helminthoglypta cypreophila (W.G. Binney& T.B. Bland, 1869) California, Shasta County
Sonorella dalli P. Bartsch, 1904 USA, Arizona, Garden Canyon24,3 mm
Sonorella danielsi H.A. Pilsbry& J.H. Ferriss, 1910 USA, Colorado, Bear Canyon19,7 mm
Sonorella delicata H.A. Pilsbry& J.H. Ferriss, 1919 USA, Nevada, Tollhouse Canyon18 mm