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
Sorex monticolus Merriam, 1890 - dusky shrew
Sorex monticolus alascensis Merriam, 1895