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 Notiosoricini Reumer, 1984 Genus Megasorex Hibbard, 1950 - giant Mexican shrew 1 Megasorex gigas (Merriam, 1897) - giant Mexican shrew