Kingdom Protoctista Hogg, 1860 Phylum Microspora Sprague, 1977 - microsporans see Phylum Microsporida Balbiani, 1882 Class Microsporea Levine & Corliss, 1963 see Class Microsporidea Corliss & Levine, 1963 Order Microsporida Balbiani, 1882 Suborder Apansporoblastina Tuzet et al., 1971 Family Unikaryonidae Sprague, 1977 Genus Tetramicra Matthews & Matthews, 1980