Aeolothrips nitidus Moulton, 1946
Hydroscapha natans LeConte, 1874
Hydroscapha redfordi Maier, Ivie, Johnson & Maddison, 2010
Allogona ptychophora ptychophora (Brown, 1870) - dry land forestsnail
Catinella avara (Say, 1819) - suboval ambersnail
Cryptomastix subg. Cryptomastix Pilsbry, 1939
Helicodiscus salmoneus Binney, 1886 - Salmon coil
Oreohelix idahoensis idahoensis (Newcomb, 1866) - costate mountainsnail
Pupilla hebes (Ancey, 1881) - crestless column
Vallonia cyclophorella Sterki, 1892 - silky vallonia
Myxidium (Genus) Bütschli, 1882