Class Mammalia Linnaeus, 1758 - mammals Order Insectivora Bowdich, 1821 - insectivores see Superorder Insectivora Bowdich, 1821 Family Soricidae Fischer, 1814 - shrews Subfamily Soricinae Fischer, 1814 Genus Megasorex Hibbard, 1950 - giant Mexican shrew Megasorex gigas (Merriam, 1897) - giant Mexican shrew