IRMNG Taxon list
Bothriopupa variolosa (Gould, 1848)
Chaenaxis tuba (Pilsbry & Ferriss, 1906)
Columella columella (von Martens, 1830)
Columella edentula (Draparnaud, 1805)
Columella simplex (Gould, 1840)
Pronesopupa senex (Iredale, 1913)
Sterkia calamitosa (Pilsbry, 1889)
Sterkia clementina (Sterki, 1890)
Sterkia eryiesi (Drouet, 1859) accepted as Sterkia eyriesii (Drouet, 1859)
Sterkia eyriesii (Drouet, 1859)
Sterkia hemphilli (Sterki, 1890)
Truncatellina cylindrica (Férussac, 1807)
Vertigo alabamensis G.H. Clapp, 1915
Vertigo allyniana S.S. Berry, 1919
Vertigo alpestris Alder, 1838
Vertigo andrusiana Pilsbry, 1899
Vertigo angustior Jeffreys, 1830
Vertigo arthuri von Martens, 1882
Vertigo australis Angas, 1864
Vertigo berryi Pilsbry, 1919
Vertigo binneyana Sterki, 1890
Vertigo bollesiana (E.S. Morse, 1865)
Vertigo californica (Rowell, 1861)
Vertigo clappi Brooks & Hunt, 1936
Vertigo columbiana (Pilsbry & Vanatta, 1900)
Vertigo concinnula Cockerell, 1897
Vertigo conecuhensis G.H. Clapp, 1915
Vertigo dalliana Sterki, 1890
Vertigo elatior Sterki, 1894
Vertigo gouldi (A. Binney, 1843)
Vertigo hebardi Vanatta, 1912
Vertigo hinkleyi Pilsbry, 1921
Vertigo idahoensis Pilsbry, 1934
Vertigo meramecensis Van Devender, 1979
Vertigo milium (Gould, 1840)
Vertigo modesta (Say, 1824)
Vertigo morsei Sterki, 1894
Vertigo nylanderi Sterki, 1909
Vertigo occidentalis Sterki, 1907
Vertigo oralis Sterki, 1898
Vertigo oscariana Sterki, 1890
Vertigo ovata Say, 1822
Vertigo paradoxa Sterki, 1900
Vertigo parvula Sterki, 1890
Vertigo perryi Sterki, 1905
Vertigo pusilla Müller, 1774
Vertigo pygmaea (Draparnaud, 1801)
Vertigo rowelli (Newcomb, 1860)
Vertigo rugosula Sterki, 1890
Vertigo sterkii Pilsbry, 1919
Vertigo teskeyae Hubricht, 1961
Vertigo tridentata Wolf, 1870
Vertigo ventricosa (E.S. Morse, 1865)
Vertigo wheeleri Pilsbry, 1928