Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Soricomorpha Gregory, 1910 see Suborder Soricomorpha Gregory, 1910
       Family Soricidae Fischer, 1814 - shrews
         Subfamily Soricinae Fischer, 1814
           Tribe Soricini Fischer, 1814
             Genus Sorex Linnaeus, 1758 - long-tailed shrews
               Subgenus Otisorex De Kay, 1842
                 Sorex vagrans complex
                   1 Sorex alaskanus Merriam, 1900 - Glacier Bay water shrew
                   2 Sorex bairdi Merriam, 1895
                   3 Sorex bendirii (Merriam, 1884) - Pacific water shrew
                   4 Sorex monticolus Merriam, 1890 - dusky shrew
                   5 Sorex neomexicanus Bailey, 1913 - New Mexico shrew
                   6 Sorex pacificus Coues, 1877 - Pacific shrew
                   7 Sorex palustris Richardson, 1828 - American water shrew
                   8 Sorex sonomae Jackson, 1921 - fog shrew
                   9 Sorex vagrans Baird, 1857 - vagrant shrew