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
               1.1 Sorex arizonae Diersing & Hoffmeister, 1977 - Arizona shrew
              Count: -
               1.2 Sorex emarginatus Jackson, 1925
              Count: -
               1.3 Sorex merriami Dobson, 1890 - Merriam's shrew
              Count: -
               1.4 Sorex saussurei Merriam, 1892 - Saussure's shrew
              Count: [*] 2ss
               1.5 Sorex sclateri Merriam, 1897 - Sclater's shrew
              Count: -
               1.6 Sorex stizodon Merriam, 1895 - San Cristobal shrew
              Count: -
               1.7 Sorex trowbridgii Baird, 1857 - Trowbridge's shrew
              Count: [*] 5ss
               1.8 Sorex ventralis Merriam, 1895
              Count: -
               1.9 Sorex veraecrucis Jackson, 1925
              Count: [*] 3ss
               2.1 Subgenus Ognevia Heptner & Dolgov, 1967, nom. illeg.
              Count: [*] 1s
               2.2 Subgenus Sorex Linnaeus, 1758
              Count: [*] 35s;15ss
               3 Subgenus Otisorex De Kay, 1842
              Count: [*] 32s;67ss