Eremarionta greggi Willett, 1931
Eremarionta rowelli acus (Pilsbry, 1939)
Eremarionta rowelli mexicana (Pilsbry & Lowe, 1934)
Eremarionta rowelli rowelli (Newcomb, 1865)
Eremariontoides argus (Edson, 1912)
Glyptostoma gabrielense Pilsbry, 1938
Glyptostoma newberryanum (W.G.Binney, 1858)
Helminthoglypta allyniana Berry, 1920
Helminthoglypta arrosa (Gould, 1855)
Helminthoglypta arrosa rubicunda Rowell, 1902
Helminthoglypta arrosa stiversiana (Cooper, 1875)
Helminthoglypta ayresiana (Newcomb, 1861)
Helminthoglypta californiensis (I. Lea, 1838)
Helminthoglypta californiensis (Lea, 1838)
Helminthoglypta dupetithouarsi (Deshayes, 1840)
Helminthoglypta exarata (Pfeiffer, 1857)
Helminthoglypta nickliniana (Lea, 1838)
Helminthoglypta nickliniana anachoreta (W.G.Binney, 1897)
Helminthoglypta traski traski (Newcomb, 1861)
Helminthoglypta traski willetti (Berry, 1920)
Helminthoglypta tudiculata (A. Binney, 1843)
Helminthoglypta tudiculata convicta (Pilsbry, 1913)
Helminthoglypta tudiculata imperforata Pilsbry, 1939
Helminthoglypta tularensis sequoia Pilsbry, 1928
Helminthoglypta umbilicata (Pilsbry, 1898)
Helminthoglypta walkeriana (Hemphill, 1911)
Helminthoglypta warnerfontis Reeder & Miller, 1988
Hemitrochus caribaea (Weinland, 1880)
Hemitrochus cesticulus (Gundlach in Pfeiffer, 1858)
Hemitrochus cf. cesticulus (Gundlach in Pfeiffer, 1858)
Hemitrochus cf. costantior (Weinland, 1880)
Hemitrochus cf. rufoapicata (Poey, 1858)
Hemitrochus cf. varians (Menke, 1829)
Hemitrochus fuscolabiata Poey, 1854
Hemitrochus gallopavonis (Valenciennes, 1846)
Hemitrochus milleri (Pfeiffer, 1867)
Hemitrochus multifasciata polytaeniata (Pilsbry, 1889)
Hemitrochus penicillata (Gould in Pfeiifer, 1842)
Hemitrochus rufoapicata (Poey, 1858)
Hemitrochus sp. 262417
Hemitrochus troscheli (Pfeiffer, 1846)
Hemitrochus varians (Menke, 1829)
Hemitrochus varians polychroa (A. Binney, 1851)
Hemitrochus velasqueziana (Poey, 1857)
Hemotrochus maynardi Pilsbry, 1891
Herpeteros animasensis (Pilsbry, 1939)
Herpeteros inglesiana (S.S.Berry, 1928)
Herpeteros peninsularis (Pilsbry, 1916)
Humboldtiana hogeana (von martens, 1892)
Humboldtiana montezuma Pilsbry, 1940
Humboldtiana tescola Thompson, 1967
Jeanneretia bicincta (Menke, 1830)
Jeanneretia cf. subtussulcata (Wright in Pfeiffer, 1863)
Jeanneretia multistriata (Deshayes, 1832)
Jeanneretia parraiana arangoi Clench & Aguayo, 1951
Jeanneretia parraiana carinata Clench & Aguayo, 1951
Jeanneretia parraiana depressa Clench & Aguayo, 1951
Jeanneretia parraiana paralella (Poey, 1858)
Jeanneretia parraiana parraiana (Orbigny, 1842)
Jeanneretia subtussulcata (Wright in Pfeiffer, 1863)
Jeanneretia wrighti (Gundlach, 1865)
Leptarionta trigonostoma elevatoconica (Fischer & Crosse, 1872)
Lysinoe ghiesbreghti (Nyst, 1841)
Lysinoe ghiesbreghti rufozonata (Martens, 1892)
Micrarionta baileyi (Bartsch, 1897)
Micrarionta beatula Cockerel, 1929
Micrarionta facta (Newcomb, 1864)
Micrarionta guadalupiana (Dall, 1898)
Micrarionta guadaluplana (Pilsbry & Vanatta, 1898)
Micrarionta rufocincta (Newcomb, 1864)
Micrarionta sodalis micromphala Pilsbry, 1939
Monadenia chaceana Berry, 1940
Monadenia fidelis (Gray, 1834)
Monadenia fidelis flava (Hemphill, 1892)
Monadenia infumata (Gould, 1855)
Monadenia infumata subcarinata (Binney, 1892)
Monadenia mormonum (Pfeiffer, 1857)
Monadenia yosemitensis (Lowe, 1916)
Oreohelix amariradix Pilsbry, 1933
Oreohelix carinifera Pilsbry, 1912
Oreohelix cf. strigosa depressa (Cockerell, 1890)
Oreohelix elrodi (Pilsbry, 1900)
Oreohelix haydeni (Gabb, 1869)
Oreohelix haydeni betheli Pilsbry & Cockerell, 1913
Oreohelix haydeni hesperia Pilsbry, 1939
Oreohelix haydeni oquirrhensis (Hemphill, 1886)
Oreohelix idahoensis (Newcomb, 1866)
Oreohelix junii Pilsbry, 1934
