Class Mammalia Linnaeus, 1758 - mammals
Count: 29o;11f;21g; ‡1f
   Subclass Theria Parker & Haswell, 1897
  Count: 28o;9f;21g; ‡1f
     Order Soricomorpha Gregory, 1910 see Suborder Soricomorpha Gregory, 1910
    Count: [*] 3f;43g;415s;266ss; ‡1f;2g;14s; †4g;2s
       Family Soricidae Fischer, 1814 - shrews
      Count: [*] 25g;374s;189ss; ‡1g;3s; †4g;2s
         Subfamily Soricinae Fischer, 1814
        Count: [*] 13g;146s;125ss; ‡1g;2s; †4g;1s
           Tribe Soricini Fischer, 1814
          Count: [*] 1g;77s;92ss
             Genus Sorex Linnaeus, 1758 - long-tailed shrews
            Count: [*] 77s;92ss
               Subgenus Sorex Linnaeus, 1758
              Count: [*] 35s;15ss
                 Sorex arcticus group
                Count: [*] 2s;2ss
                   Sorex arcticus Kerr, 1792 - Arctic shrew
                  Count: [*] 2ss
                     [Sorex arcticus arcticus]ᵀ Kerr, 1792
                    Count: -